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Tektronix 2430, Service Manual

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Service Manual

2430
Digital Oscilloscope

070-4917-00

Warning

The servicing instructions are for use by qualified

personnel only. To avoid personal injury, do not

perform any servicing unless you are qualified to

do so. Refer to the Safety Summary prior to

performing service.

Please check for change information at the rear

of this manual.

First Edition: May 1986

Last Revised: September 1994

Summary of Contents for 2430

Page 1: ...s are for use by qualified personnel only To avoid personal injury do not perform any servicing unless you are qualified to do so Refer to the Safety Summary prior to performingservice Please check for change information at the rear of this manual First Edition May 1986 Last Revised September 1994 ...

Page 2: ...n patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Printed in the U S A Tektronix Inc P O Box 1000 Wilsonville OR 97070 1000 TEKTRONIX and TEK are registered trademarks of Tektronix Inc ...

Page 3: ...SUPPLY AND CRT 3 73 SYSTEM 1 0 3 78 VIDEO OPTION 3 82 LOW VOLTAGE POWER SUPPLY 3 90 LOW VOLTAGE REGULATORS 3 96 Section 3 THEORY OF OPERATION SECTION ORGANIZATION 3 1 INTEGRATED CIRCUIT DESCRIPTIONS 3 1 SIMPLIFIED BLOCK DIAGRAM DESCRIPTION 3 2 DETAILED BLOCK DIAGRAM DESCRIPTION 3 8 INTRODUCTION 3 8 INPUT SIGNAL CONDITIONING AND ANALOG SAMPLING 3 8 ACQUISITION PROCESS AND CONTROL 3 10 DATA CLOCKING...

Page 4: ...CEDURES 6 32 ii Section 6 MAINTENANCE CALIBRATION IN THE 2430 DIGITAL OSCILLOSCOPE 6 1 NATIONAL BUREAU OF STANDARDS TRACEABILITY 6 2 VOIDING CALIBRATION 6 2 STATIC SENSITIVE COMPONENTS 6 3 PREVENTIVE MAINTENANCE 6 4 INTRODUCTION 6 4 GENERAL CARE 6 4 INSPECTION AND CLEANING 6 4 LUBRICATION 6 6 SEMICONDUCTOR CHECKS 6 6 PERIODIC READJUSTMENT 6 6 TROUBLESHOOTING 6 7 INTRODUCTION 6 7 TROUBLESHOOTING AI...

Page 5: ... pattern 5 6 3 1 2430 simplified block diagram 3 3 3 2 Simplified Memory Map of the 2430 3 18 3 3 System Clock waveforms 3 35 3 4 Simplified Peak Detector block diagram 3 45 3 5 Simplified CCD architecture 3 47 3 6 Trigger Logic Array Control Data Byte 3 51 3 7 Jitter correction waveforms 3 55 3 8 Readout State Machine flow chart 3 69 3 9 Vertical Vector Generator 3 71 3 10 DC Restorer 3 76 3 11 G...

Page 6: ...d circuit board illustrations 9 4a Detailed2430 Block Diagram 9 4b Detailed2430Block Diagram cont 9 5 A12 Processor Board 9 6 A13 Side Board 9 7 A14 Front PanelBoard 9 B A1O Main Board 9 9 A11 Timebase Display Board 9 10 A17 High Voltage Board 9 11 A16 Low VoltagePowerSupplyBoard Figure LIST OF ILLUSTRATIONS cont 2430 Service ...

Page 7: ...Minimum Display Level for CH 1 or CH 2 Triggering Minimum Signal Level for EXT1 or EXT2 Triggering Host Memory Mapped 1 0 Processor Control Register Functions Processor Miscellaneous Register PMREG Output Functions Waveform I LPAddress Decoding Trigger Logic Array Addresses 6080h 6087h REF4 5 Frequency for Each SEC DIV Setting Phase Clock Array Control Lines CC3 through CCO Holdoff Delay Range for...

Page 8: ...wer cord is essential for safe operation vi Power Source This product is intended to operate from a power source that will not apply more than 250 volts rms between the supply conductors or between either supply conductor and ground A protective ground connection by way of the grounding conductor in the power cord is essential for safe operation ATIENTION Refer to manual Protective gound earth ter...

Page 9: ...ing protective panels sol dering or replacing components Use Care When Servicing With Power On Dangerous voltages exist at several points in this product To avoid personal injury do not touch exposed connec tions or components while power is on Do not perform internal service or adjustment of this pro duct unless another person capable of rendering first aid and resuscitation is present Do Not Ser...

Page 10: ...viii 4917 01 The 2430 Digital OScilloscope ...

Page 11: ...TV that processes applied composite video signals for stable triggering With the Video Option installed the Trigger LEVEL control becomes the TV LINE number selector for FLD1 and FLD2 triggering A choice of VERT CH1 or CH2 EXT1 or EXT2 LINE and A B or WORD 16 bit data word recognition for the A Trigger signal SOURCE provides a wide range of special ized triggering capabilities The B Trigger SOURCE...

Page 12: ...x representative or local Tektronix Field Office 2 2 Probe packages Snap lock accessories pouch Zip lock accessories pouch Operators manual Instrument Interface Guide 2 User Reference Guide Fuse Power cord installed Blue plastic crt filter installed Clear plastic crt filter Front panel cover The following items are standard accessories shipped with the 2430 instrument The 2430 has full TALKER LIST...

Page 13: ...sion signal with VOLTS or V T cursors UNITS set to delta volts Envelope Mode Add 1 to Normal Mode specifications Variable Range Continuously variable between VOLTS DIV settings Extends sen sitivity to 0 5 V per DL or greater 12 5 V per division or greater Bandwidth Normal and Average Mode Repet off DC to 40 MHz calculated useful storage bandwidth USB a SEC DIV at 0 5 tSor Faster F sample freq max ...

Page 14: ...imum Single Pulse Width for Guaranteed 8 ns a 80 or Greater Amplitude Capture Channel Isolation 100 1 or greater attenuation of the deselected channel at 100 MHz 50 1 or greater attenuation at 150 MHz for a 10 division input signal from 2 mV div to 500 mV div with equal VOLTS DIV settings on both channels Acquired Channel 2 Signal Delay with Respect 250 ps a to Channel 1 Signal at Full Bandwidth I...

Page 15: ...V adjusted for best CMRR at 50 kHz POSITION Range 9 6 to 10 7 divisions 0 4 0 7 div At 50 mV per division with INVERT off when Self Cal has been done within 5 C of the operating temperature Gain Match Between NORMAL and SAVE 3 DLs for positions within 5 divisions from center Low Frequency Linearity Normal or Average Mode 3 DLs or less compression or expansion of a two division center screen signal...

Page 16: ...mode Attenuates siq nal below 80 kHz B Trigger Multiply all A Trigger specifications by two A B Selected Multiply all A Trigger specifications by two Minimum pop Signal Amplitude for Stable Triggering from EXT TRIG 1 or EXT TRIG 2 Source A Trigger EXT Gain 1 DC Coupled 17 5 mV from DC to 50 MHz increasing to 50 mV at 150 MHz NOISE REJ Coupled 60 mV or less from DC to 50 MHz increasing to 150 mV at...

Page 17: ...pled 15 C to 35 C Within 3 of setting 3 of p p signal 0 2 division X VOLTS DIV setting 0 5 mV 0 5 mV X probe attenuation factor 15 C to 55 C Add 1 5 mV x probe attenuation to 15 C to 35 C excluding 15 C to 35 C specification a NOISE REJ Coupled Add 0 6 division X VOLTS DIV setting to DC Coupled specifications Checked at 50 mV per division EXT TRIG 1 or EXT TRIG 2 Source EXT GAIN 1 DC Coupled Withi...

Page 18: ...10 ms 1 ms 10 20 ms 2 ms 20 40 ms 90 150 ms 5 ms 50 100 ms 10 ms 0 1 0 2 s 20 ms 0 2 0 4 s 0 9 1 5 s 50 ms 0 5 1 0 s 100 ms 1 2 s 200 ms 2 4 s 500 ms 9 15 s 1 s 2s 5 10 s 5s SLOPE Selection Conforms to trigger source waveform and ac power source waveform Trigger Position Jitter p p SEC DIV 0 5 f lS per Division or Greater A and B Triggered Sweeps 0 04 X SEC DIV setting a B RUNS AFTER Delay 0 08 X ...

Page 19: ...to 30 kHz Attenuates signals above 30 kHz a LF REJ Coupled 2 0 divisions from 80 kHz to 20 MHz increasing to 4 0 divisions at 100 MHz 3 0 divisions at 100 MHz in ADD mode Attenuates signals below 80 kHz a EXT TRIG 1 or EXT TRIG 2 Source Ext Gain 1 DC Coupled 35 mV from DC to 20 MHz increasing to 100 mV at 100 MHz a NOISE REJ Coupled 120 mV or less from DC to 20 MHz increasing to 300 mV at 100 MHz ...

Page 20: ... surface transport to a hazard ous waste disposal facility The batteries should be individually packaged to prevent shorting and packed in a sturdy container that is clearly labeled Lithium Batteries DO NOT OPEN I WARNING I 1 10 aperformance Requirement not checked in the manual 3 5 volt lithium thionyl chloride Type LTC 7P UL listed a Battery Greater than 24 hours Greater than 120 hours a Wavefor...

Page 21: ... Setting8 Frequency8 Period8 Cycle8 5 ns 40 10 ns 20 20 ns 5 MHz 200 ns 10 50 ns 4 100 ns 2 200 ns 1 500 ns 4 1 JLS 500 kHz 2 JLS 2 5 JLS 4 10 JLS 50 kHz 20 JLS 2 20 JLS 1 50 JLS 4 100 JLS 5 kHz 200 JLS 2 200 JLS 1 500 JLS 4 1 ms 500 Hz 2 ms 2 2 ms 1 5 ms 4 10 ms 2 20 ms 1 50 ms 0 4 100 ms 0 2 200 ms 50 Hz 20 ms 0 1 500 ms 0 04 1 s 0 02 2s 0 01 5s 0 004 Accuracy 0 01 a Symmetry Duration of high po...

Page 22: ... 0 15 V or less a PLOTTER X Output and Y Output Output Resistance 1k 1 10 Output Range 2 V 100 mV Scale Factors Y 390 mV per division X 390 mV per division Output Center o volts 30 mV Home Lower Left Position 2V 100mV Slew Rate Less than 8 volts per secono The instantaneous slew rate is determined by the output stage time constant 3 3 ms and can exceed 8 volts per second The System l Pcomputes the...

Page 23: ...sponse NORMAL Mode Step Aberration 4 4 4 p p Fill Edges of filled regions match reference lines within 0 1 division ENVELOPE Mode Fill Less than 1 change in p p amplitude of a 6 division filled ENVELOPE waveform when switching vectors ON and OFF Waveform and Cursor Display Horizontal Resolution Electrical One part in 1024 10 bit Calibrated for 100 potnts per division s Gain Accuracy Graticule indi...

Page 24: ... 115 V 90 V to 132 v 230 V 180 V to 250 v Source Frequency 48 Hz to 440 Hz Fuse Rating 5 A 250 V AGC 3AG Fast Blow or 4 A 250 V 5 X 20 mm Time Lag T a Each fuse type requires a different fuse cap Power Consumption Typical standard instrument 160 watts 250 VA a Maximum fully optioned instrument 200 watts 300 VA a Primary Groundinq Type test 0 1 S1maximum Routine test to check grounding con tinuity ...

Page 25: ...s at each major resonance or if none exist hold 10 minutes at 55 Hz 75 minutes total test time Shock Operating and Nonoperating 50 g half sine 11 ms duration three shocks on each face for a total of 18 shocks Transit Drop not in shipping package 12 inch 300 mm drop on each corner and each face exceeds MIL T 28800C paragraphs 3 9 5 2 and 4 5 5 4 2 Bench Handling Cabinet On and Cabinet Off MIL STD 8...

Page 26: ...le D equipment with the rackmounting rear support kit installed Refer to the Standard Instrument Environ mental Specification for the remaining performance requirements Instruments will be capable of meeting or exceeding the require ments of Tektronix Standard 062 2853 00 class 5 Temperature operating Environmental Requirements RACKMOUNTEDINSTRUMENT Meets requirements of Tektronix Standard 062 186...

Page 27: ...ories 10 9 kg 23 9 Ibs and Accessories Pouch Domestic Shipping Weight 16 4 kg 36Ibs Overall Dimensions See Figure 1 1 for a dimensional drawing Height With Feet and Accessories Pouch 190 mm 7 48 in Without Accessories Pouch 160 mm 6 3 in Width with handle 330 mm 13 0 in Depth With Front Cover 479 mm 18 86 in With Handle Extended 550 mm 21 65 in Cooling Forced air circulation no air filter Finish T...

Page 28: ... rise step rise time 1 ns or less 1 MQ dc input coupling an external 50 Q termination and VARIABLE VOLTS DIV set to CAL Exclude the first 20 ns following the step transition and exclude the first 30 ns when 20 MHz BW LIMIT is set Line Rate 5 mV div to 20 mV div 1 1 p p at 15 kHz with input signal of 0 1 V 50 mV div 1 1 p p at 15 kHz with input signal of 1 0 V TV Back Porch Clamp CH 2 Only 60 Hz At...

Page 29: ...me and less than or equal to 1280 8 Horizontal Mode Delayed by time Minimum Input Signal Amplitude for Stable Triggeringa Channel 1 and Channel 2 Composite Video 2 divisions Composite Sync 0 6 division Peak signal amplitude within 18 divisions of input ground refer ence EXT TRIG 1 or EXT TRIG 2 EXT GAIN 1 Composite Video 60mV Composite Sync 30 mV Peak signal amplitude within 0 9 V from input groun...

Page 30: ...l drawing Dimensions are in inches mmJ 471J 6 1 r f __ J t f t 5 94 5 53 6 3 29 151J III 1 1 141J 5 78 161 60J 1 I 1 147J 1 c 12 72 323J 17 19 437J 22 15 563J l 0 13 31 10 68 11 8 338J 271J 30 11 63 g J 296J j E 18 55 Specification 2430 Service ...

Page 31: ...ore connecting the power cord to a power input source verify that the LINE VOLTAGE SELECTOR switch located on the rear panel see Figure 2 1 is set for the correct nominal ac input source voltage To convert the instrument for operation from one line voltage range to the other move the LINE VOLTAGE SELECTOR switch to the correct nominal ac source voltage setting see Table 2 1 The detachable power co...

Page 32: ... 10A UL 1986 North 5A 250V ANSIC73 20 OptionA4 American 230V 180V to AGC 3AG AGC 3AG NEMA6 15 P 240V 250V Fast blow IEC83 15A UL 198 6 UL 198 6 Switzerland 5A 250V 180V to AGC 3AG SEV OptionA5 220V 230V 250V Fast blow AGC 3AG IEC127 6A UL 1986 e A 6A Type C fuse is also installed inside the plug of the Option A2 power cord b ReferenceStandards Abbreviations ANSI American National Standards Institu...

Page 33: ...Section 6 of this manual for information on the power up tests and the procedures to follow in the event of a failed test START UP Preparation for Use 2430 Service All operating information pertaining to the use of the menus controls and connectors operators familiarization and basic applications is found in the 2430 Operators Manual A User Reference Guide supplied with the 2430 provides quick ref...

Page 34: ...ecome lost The result is that SAVE and SAVEREF waveforms stored at power off are replaced by the invalid waveform display when the scope is again turned on Each operating period of the scope refreshes the short term nonvolatile memory In the event of a momentary power interruption that starts the power off sequence of the 2430 the scope will redo the power on procedure If the scope was in the midd...

Page 35: ...o located at the rear of this manual The schematic diagram number associated with each description is identified in the text and is shown on the block diagrams For best understandingof the circuit being described refer to the appropriate schematicdiagram and the block diagrams The order of discussion in the circuit descriptionsfollows the schematicdiagramnumberorder This section of the manualis di...

Page 36: ... These amplifiers monitor the dc common mode level of the Peak Detector outputs and match it to the control gain level set by the System J LP That dc level sets the CCD signal gain 3 2 Peak Detectors and CCD Clock Drivers diagram 10 PEAK DETECTORS Additional buffering of the signal to the CCDs is provided by the Peak Detectors for all acquisition modes The bandwidth of the input amplifiers of the ...

Page 37: ...TION RAMPS 19 VERT HORIZ 00 _J 00 J DISPLAY z m IIAVEFORM l l c I START lSTOP PROCESSOR AND 00 ATTRIBUTES _J h 0 0 0 MEMORY 0 D w TRIG DIstLAY z 0 HOlOOFF 0 w r u u u AND J ATHO MEMORY J m JITTER COUNTERS CONTROL OISPLAY OISPLAY PROBE SIGNALS MEMORY MEMORY0 POIIER CONTROL ADDRESS c OPTION SIGNALS BUS c GtJ 00 DISON DISPLAY Ci SYSTEM PLOXT ER4 1 0 CONTROllER SYSTEM I ADDRESSBUS liaRD I I I TRIG _ S...

Page 38: ...ata processing tasks given to it to do by the System otP without further need of System otP action 3 4 Waveform Processor diagram 2 The Waveform Processor performs the high speed data handling operations required to produce and update the crt displays Waveform data is transferred from the Acquisition Memory to a Save Memory in the Waveform otPwork space Waveforms may be digitally added multi plied...

Page 39: ...pressed are interpreted as to what type of switch action occurred from the switch type definition list and that information is sent to the System kPto make the appropriate operational changes Theory of Operation 2430 Service Front Panel Processor diagram 3 The Front Panel kP is a special purpose device used to respond to switch and control changes When a control changes the Front Panel kP informs ...

Page 40: ...cuit determines that the ramp level has discharged to a fixed reference level 3 6 Jitter Correction Ramps diagram 12 The Jitter Corrections Ramps work in conjunction with the Jitter Counters to detect and measure the time difference between a trigger event that occurs randomly and the sample clock That time difference is used to correctly place sampled data points into the waveform record when tho...

Page 41: ...nd the actual waveform data being displayed Both the grati cule and the scale factors may be turned off to prevent them from being plotted Theory of Operation 2430 Service A second interface is the Word Trigger circuitry used to control the word recognization patterns of the optional Word Recognizer probe All firmware and hardware including connectors required for use of the Word Recog nizer probe...

Page 42: ...gram 9 based on the Front Panel control settings chosen by the user INPUT SIGNAL CONDITIONING AND ANALOG SAMPLING This description of the Detailed Block Diagram found in the Diagrams section of this manual provides an over view of the operation of many of the circuits and their functions within the 2430 The emphasis is on the acquisi tion system and a signal flow approach is used as much as possib...

Page 43: ...isition Memory portion of the Detailed Circuit Description Theory of Operation 2430 Service The signal sampling process of CCDs diagram 10 requires that two differential signal pairs be available from each Peak Detector Each CCD will use one or both out put pairs as input signals depending on the analog sam pling mode Briefly the FISO sampling mode fast in slow out requires 1056 samples to be shif...

Page 44: ...igger System enabled the AlB Trigger Gen erator diagram 11 monitors the selected source for a sig nal that meets the analog triggering criteria Source selec tion and triggering criteria are controlled by serial data writes from the System uP via the Data MUX Select cir cuit based on the Front Panel settings selected by the user When the analog triggering conditions are met the AlB Trigger Generato...

Page 45: ...de the Time Base Controller gen erates an enabling clock that controls the 2 MHz write clock to the Acquisition Memory The correct enabling rate of the SAVEACQ write clock for the selected SECIDIV setting is synthesized within the Time Base Controller using a CCD Data Clock input to obtainthe base fre quency This enabling clock turns on the controlling gate circuit to pass only two SAVEACQ clocks ...

Page 46: ...o the Acquisition Latches This action turns over the gating of that clock to the Envelope Min Max Comparators diagram 15 With the 2 MHz clock ungated the CCD Data Clocks will con tinue to control the enabling of the outputs of the acquisi tion latches as described but the new data bytes are not continually clocked into the latches The result is that only the data bytes clocked in by the Envelope M...

Page 47: ...clocks the data out of Display Memory Theory of Operation 2430 Service The Waveform I lP addresses in parallel both the Waveform Save Memory and the Display RAMs via the Address Multiplexer diagram17 The System I lP gates the address through to the Display Memory the Vertical Horizontal and Attribute RAMs on diagram 16 via the Display Control Register diagram17 The Waveform I lP then clocks the da...

Page 48: ...ia the Spot Wobble Correc tion circuit passed through an rc integrator that produces vectors between the min max data points of the Envelope Mode display 3 14 A Display Mode Switcher selects between the Vector Generator signals a dots only signal or an envelope display signal With Envelope mode selected the signal is The Vector Generators consist of a High Current Difference Amplifier a Sample and...

Page 49: ...U844A The out put of U844A is the RD signal whose falling edge indi cates the start of a read cycle The rising edge of RD is coincidentwith the latching of the data read into f LP U640 The E signal U640 pin 34 and the Q signal U640 pin 35 are ORed together by U840D to generate the HVMA Host Valid Memory Address signal When HVMA at U840D pin 11 is HI the address on the bus is valid Once the externa...

Page 50: ...System ROMs it writes three bits of select data into regis ter U860 Of these bits PAGE BITO and PAGE BIT1 applied to 1 of 4 Decoder U890B select which ROM chip of ROMOis enabled PAGE BIT2is the most significantbit of the ROM addresses and determineswhich page of the enabled ROM is addressed The applied bit levels produce a ROM select for one of the 32K ROM chips when data selector U890B is enabled...

Page 51: ...ned signal forming the IRQ interrupt request This interrupt allows various sub systems to get attention from the System ILP NOR gate U850B outputs a LO when any of the five con ditions occur Inputs to NOR gate U850B are from the GPIB General Purpose Interface Bus the Display cir cuitry the Front Panel the Waveform ILP and the Trigger System Of these the latter three interrupts may be masked off di...

Page 52: ...6000 6010 601F 6020 602F 6040 604F 6080 608F 6100 610F 6200 620F 6400 640F 6800 6807 INTERRUPT VECTORS 680F FFF0 FFFF 7000 SAVE MEMORY DISPLAY MEMORY READOUT MEMORY DATAIATTRIBUTES MEMORY ACQUISITION MEMORY ACQUISITION MEMORY IMAGE COMMAND MEMORY TEMPORARY MEMORY COEFFICIENT MEMORY MEMORY MAPPED 1 0 NONVOLATILE RAM SYSTEM RAM BANK SWITCHED ROM 32K X 4 ROM 1 16K 7800 8000 7000 6000 5800 5000 4800 4...

Page 53: ...ng a negative logic OR out put function a LO out is the enabling signal detects when either the host RAM or system ROM is being addressed A LO from gate U580A turns on the Memory Buffer U660 via OR gate U332A performing a negative logic AND function two LOs in give a LO enabling signal out This connects the selected memory device to the sys tem data bus Theory of Operation 2430 Service Address lin...

Page 54: ...o read certain bits of instrument status Miscellaneous Registers Memory Buffer U660 transfers data between the Sys tem pP and the System ROM or System RAM stages The buffer is e nabledwhen either the System ROM or System RAM are addressed see System Address Decode descrip tion The direction of data transfer through the buffer is controlled by the WR write line from the System pP depending on wheth...

Page 55: ...omes shorted With instrument power turned off transistors 0806 and Q804 are both turned off The positive charge potential stored by capacitor C904 forward biases CR900 and pulls the chip enable pin of U664 HI through R764 This dis ables RAM U664 and switches its 1 0 ports to high impedancestates Operationin this state is the standby mode in which data in U664 is maintained using minimal supply cur...

Page 56: ...o Display Memory may be started 3 22 The first instruction in the task list tells the Waveform ILPwhat is to be done The ILPthen switches to the rou tine in ROM to get the instructions that do that job Part of that routine might be to get the argumentsfor the task When the arguments are in place the Waveform ILPthen finishes the task routine When done with the first task the WaveformILPlooks at th...

Page 57: ...ware copy of PCREG to see if the Waveform ILP is reset If it is not reset the System ILP asserts BUSREO bus request to the Waveform ILP and waits until the Waveform ILP outputs a BUSACK bus acknowledge to OR gate U332D The output of U332D is the BUSGRANT signal that when HI disables the Waveform ILPdata buffers address registers and memory control lines To write data out of the Waveform ILPto the ...

Page 58: ...within resistor packs R474 and R590 place a NOP no operation instruction byte on the instruction bus A NOP command causes the Waveform J LP to increment through the first 12 bits of its address range on the 16 bit DAD bus and through all the addresses of its IA bus This KERNEL mode allows the Waveform J LP address bus and address decoding to be exercised for troubleshooting and diagnos tic purpose...

Page 59: ... Waveform P RAM resides in the Waveform P address space and is used for storage and manipulation of waveform display data The RAM consists of three memories the 8K x 8 bit Save Memory RAM the 2K x 8 bit Command temp RAM and the 2K x 8 bit Coefficient RAM Waveform p RAM The outputs of U540 allow the accessing processor to read the display status SSREG to read the two byte address of the last acquir...

Page 60: ... assigned task and is ready to accept another The output bit on pin 10 is applied to Display Status Register U542A and is used for write readback verification of U550 and U542A during the self check and other diagnostic routines 3 26 Interrupt Latch The Interrupt Latch U550 allows the Waveform J LP operations to interrupt the System J LP for servicing and when servicing is completed allows the Sys...

Page 61: ... code identifying which control setting changed on its PAO PA7 outputs and it then sets the WRTOHOST write to host signal HI to clock Handshake Logic flip flop U861 B The resulting HI on the Q output of the flip flop is the front panel interrupt FPINT to the System lP telling it that the front panelsettings have beenchanged To read the front panel switches the Front Panel J lP first sets one of th...

Page 62: ...n ways that enhancecontrol operation The Front Panel is the operator s interface for control ling the user selectableoscilloscopefunctions FRONT PANEL CONTROLS 3 28 The Front PanelTrigger Status Indicatorsprovidevisual information regarding trigger slope and trigger status to the user Data written to LED RegisterU741from the Sys tem jlP turns on the LED that reflects the current trigger status A L...

Page 63: ...d hold circuitry is shown in diagram 6 System DAC cont and Auxiliary Front Panel Theory of Operation 2430 Service The System DAC and Acquisition Control Registerscir cuitry diagram5 is used to set various analog reference voltages throughout the instrument and controls such things as preamplifiergain vertical position and centering trigger levels holdoff time common moderejection grati cule illumi...

Page 64: ... input of U272 and to the DAC input register formed by U850 and U851 deviation from the correct 1 25 V level produces a gain correction voltage applied to the DAC via R760 Capacitor C662 maintains the correction voltage between DAC update cycles 3 30 To set the DAC Gain the System j tP loads OF59h into DAC input registers U850 and U851 and routes the result ing output voltage to DAC Gain Sample an...

Page 65: ...enabled device is controlled by the three select bits applied to it from the three most significant bit outputs of DAC Register U851 Theory of Operation 2430 Service The DAC multiplexing and sample and hold circuits included in diagram6 operate similarly to those described in the DAC System diagram5 discussion The analog voltage output from the DAC I to E Converter is routed through one of the thr...

Page 66: ...2 Automatic compensationof the Z Axis Amplifier gain is carried out in five transistor array U812 Transistors U812B and U812C form the bias network for U812D one half of the Z Drive compensationamplifier Biasing for the other transistor of the differential pair is supplied by U812A R817 and a resistor internal to the Z Axis Amplifier that is tied to the 5 VD supply The differential amplifier pair ...

Page 67: ...loscope Secondary Clocks The Secondary Clocks circuit further divides the 20 MHz clock to produce other system clock rates The flip flops within U710 along with logic gates U711A U711B U711C and U712B produce 10 MHz 5 MHz and 2 5 MHz clocks Theory of Operation 2430 Service Jumper J132 allows an external clock signal to be sub stituted for the 40 MHz clock signal to aid in testing and troubleshooti...

Page 68: ...2XPC clock with the signal transfers out of the CCD 3 34 CCO Output Sample Clocks The CCD charge couple devices Output Sample Clocks stage controls signal transfers from the Acquisition CCD Clock Drivers diagram10 to the external CCD Out put circuitry diagram14 It consists of a state machine synchronized to the 20 MHz clock and thus the CCD events and produces Clocks to 1 move sampled data out of ...

Page 69: ..._ I250ns I LOAD U623B 6 00S21 U720B 9 OS21 UB31 13 oS11 UB31 14 OS13 UB31 12 OS23 UB31 15 SYNC U623A 2 RESET U731E B OSAM2 U731B 6 oSAM1 U731A 3 4XPC I U622 11 2XPC F500ns 1 U523 9 C20M2 U513C 6 TTL4C U720 2 SYNC4C U720 5 D14XPC I U642 15 o24XPC J U642 13 Theory of Operation 2430 Service ...

Page 70: ...ut of U831 into the QA output and shifts the HI from the QA output to the QB output DS11 Counter U721 is also reloaded with 0111 binary for the next count cycle 3 36 When the SYNC output from U830 pin 15 goes LO for 50 ns at the end of the TTL4C cycle the outputs of NAND gate U620A and inverter U513D go HI and the out put of AND gate U623A goes LO This places counter U721 and shift register U831 i...

Page 71: ...ols the various acquisition functions Two different operating modes of the CCD charge coupleddevices arrays must be controlled by U670 these are the FISO mode fast in slow out and the Short Pipe mode slow in slow out FISO mode is used at sweep speeds faster than 100 IIs div when the analog sampling must occur at the fastest possible rate The Short Pipe mode is used for lower frequency signals when...

Page 72: ...EACQ signal used to write the data into the Acquisition Memory 3 38 Since the trigger event can occur at anyone of the 32 analog samples that are taken between each TTL1B clock and since the Time Base Controller only keeps track of the number of pretrigger and post trigger samples in terms of these 32 sample records there are usually some samples at the beginning of those in the CCD array B regist...

Page 73: ...he first 8 register and since stored samples may occur at a rate different than the sample rate pretrigger and post trigger counting is done relative to samples actually stored into the Acquisition Memory When enough valid pretrigger points have been saved EPTHO enables the Triggers Data is saved in bursts of two points four points in ENVELOPEacquisition mode one for CH 1 and one for CH 2 at the s...

Page 74: ...ller is in control of the Acquisition Memory and counter will be in its count mode as the acquired signals are being stored into the Acquisition Memory 3 40 The Address Counter increments the Acquisition Memory address as each point is saved Each write into Acquisition Memory ends with the WE write enable signal going HI clocking the counter to address the next sequen tial Acquisition Memory locat...

Page 75: ...he input coupling to the 1 MQ position to prevent damage to the attenuator and the error message 50 Q OVERLOAD is displayedon the crt At power off the input coupling is automatically switched to the 1 MQ position to prevent an unmonitored overload condition from accidentlyoccurring Theory of Operation 2430 Service The 50 Q termination resistor has a thermal sensor associated with it that produces ...

Page 76: ...e memory and like the other DAC System outputs is updated approximately every 64 ms holding the Preamplifier in a dc balanced condition 3 42 Three analog control voltages set by the DAC System circuitry diagrams 5 and 6 modify the differential output signal at pins 9 and 10 of the Preamplifier CH1 BAL Channel 1 Balance is applied to U420 pin 2 from the Control data from the System J LP is clocked ...

Page 77: ...king arrangement ensures that the supply voltages are of equal magnitude to minimize dc offsets in the output signals Theory of Operation 2430 Service External trigger signal sensitivities may be set by the user to allow triggering ranges of either 0 9 volts EXT 1 or 4 5 volts EXT i 5 Larger applied voltages on the external trigger inputs will exceed the control ranges of the Trigger System The lo...

Page 78: ...ust circuits discussed later 3 44 The differential signal from the CH 1 Preamplifier is applied to the CH 1 Peak Detector U440 on input pins 4 and 6 In ENVELOPE acquisition mode two sets of two fast peak detectors following the input stage are used to permit continuous peak detection of negative and positive peaks of the input signal While the PDA fast peak detec tor is peak detecting the positive...

Page 79: ... DETECTOR CLOCKS OUTl SIGNAL MAX PDOS11 rvYY rvYY 15 16 14 17 l PEAK DETECTORS OUTPUT MULTIPLEXORS A A 43 PDA f BANDIiIDTH PDA SLOII SLOII 44 FILTERS FAST MAX FAST CAL OFFSET MAX 27 T H RESET r 2 SEL I 75fl PDB 1 4 SLOII 26 PDB SLDII FAST MAX FAST 28 6 75fl MAX I 0 T H RESET f 1 SEL SEL t I 1POl INPUT o r 23 BUFFER 1 z AMPL 2 PD2 36 75fl 3 T 8 PDC SEL SLOII 75fl PDC SLOII 1 33 10 FAST MIN FAST MIN...

Page 80: ...acket representing the instantaneous analog signal value is initially formed under the first 1A gate the first gate that is driven by the A register Phase 1 clock 3 46 A simplifieddiagramof one halfof one CCO is shown in Figure3 5 The half shown the SIG1 side or Side 1 is nearly identicalto the SIG3 side Side3 of the CCO Each side provides temporary storage of 528 analog samples for a total storag...

Page 81: ..._j OUTPUT 1 TI TRANSFER ClK ET ClK TO TRANSFER ClK A REGISTER ClKS 4 001 B REGISTER ClKS 4 C REGISTER ClKS 4 OUTPUT 1 0 J W 0 Z f W J 0 en f z _j en 0 FOllOWER J _j D w J 0 W D 0 Z f 0 0 OUTPUT w 0 ui WEll f 0 f en w 0 en LL W J en LL J W Z en w 0 c z 0 0 c u c f 0 f SAMPLE ClK rs T B REGISTER 33 lONG C R GISTER TRANSFER OUT TRANSFER IN FAST IN SLOW OUT FISO PATH SHORT PIPE PATH Theory of Operatio...

Page 82: ...1 CCD bias current for the high speeddrivers is set by the feedback circuit of U360A and Q375 The drivers are biased by injecting current into the IS input pin 29 Increasingthe current makes the lO level of the high speedclocks more negative decreasing the current raises the lO level The HI level of the clocks is always within a few hundred millivolts of the 5 V supply to the hybrid For controllin...

Page 83: ...onents provides for selection and analog type trigger detection from five input signals for each of the A and B triggers These are the CH 1 and CH 2 vertical inputs the EXT 1 and EXT2 trigger inputs and the line triggerinput A trigger only Two multiplexers internal to U150 select one of these signals as the trigger source for A Trigger and one excluding the LINE signal for B Trigger Source selecti...

Page 84: ... that the defined number of pretrigger points have been sampled 1 The System P loads the delay count and con trol mode registers then starts the acquisition indicated by setting RSTACO HI at TP370 Operation of the Trigger Logic Array is very sequential in the way it functions in the various trigger modes An example is illustrated in the sequence of events for B RUNS AFTER trigger mode 3 50 After t...

Page 85: ...1 A B TRIGGER A TRIGGER BITS B TRIGGER BIT YES ONEVNT EVENTS l I2J NO JT1 JTI2J SOURCE I2J I2J A TRIGGER I2J 1 B TRIGGER 1 I2J END EVENTS 1 1 B TRIGGER RTl RTI2J SOURCE I2J I2J A TRIGGER I2J 1 END DELAY TIME 1 I2J END DELAY EVENTS 1 1 B TRIGGER ONE EVENT BITS RECORD TRIGGER BITS JITTER TRIGGER BITS M7 M6 M5 M4 M3 M2 Ml MI2J JTl JTI2J RTl RTI2J ONEVNT BTI2J ATl ATI2J CONTROL DATA BYTE Theory of Ope...

Page 86: ...puts control operating mode and clock selec tion as shown in Table3 7 The CCD Phase Clock generates properly phased and frequency relatedclocks that control most of the Acquisi tion system These functions include moving samples into the CCO arrays shifting within the arrays jitter correction control peak detection control and trigger delay clock generation These clocks are derived from the 200 250...

Page 87: ...ed some time after JTRIG occurs RTRIG is synchronized to the B register clock and is output to the Time Base Controller on the SYNTRIG synchronous trigger line telling it to start counting post trigger sam ples The RTRIG also loads a register internal to U470 with the present sample count to locate the trigger event explained later When the Time Base Controller has com pleted the post trigger coun...

Page 88: ...A and keeps 0493 turned on just enough to maintain the balance at the operational amplifier inputs 3 54 Fast charging rate is determined by the constant current source formed by U590A 0493 and associated The ramp generator consists of a constant current source used to rapidly charge an integration capacitor when the trigger event occurs and a second current source used to discharge the capacitor m...

Page 89: ...Figure 3 7 Jitter correction waveforms 4917 08 14 J I T COUNT2 t I I4 JIT COUNT1 I I I i I I STOP2 STOP1 START2 STARTl JIT COR RAMP 2 JIT COR RAMP 1 SLRMP2 SLRMP1 RAMP JTRIGI Theory of Operation 2430 Service ...

Page 90: ...i tion mode correctly with respect to data points taken in the previous acquisitionsto fill the waveform record 3 56 The Trigger Holdoff circuits allow a delay to occur between the occurrence of a triggering event and when the A B Trigger Generator is allowed to recognizeanother trigger event Variable Holdoff can help the user prevent double triggering on aperiodic signals such as complex digital ...

Page 91: ... user defined reference level while U871 compares it to a predefined end of holdoff level 1000 1 C881 is the dominant integrating element in the three capacitor parallel combination Theory of Operation 2430 Service Charging current is stored on capacitor C882 when holdoff intervals less than or equal to 10 J Ls are desired For longer holdoff periods capacitor C881 and C885 are placed in parallel w...

Page 92: ...oth Jitter Correction Counters is identical only the RAMP1 Jitter Correction Counter will be described 3 58 The width of the ATHO pulse represents the time from which one analog trigger event was accepted to when the next trigger event is allowed next acquisition record By varying this time front panel Holdoff control the displayed waveform may be adjusted to exclude undesired trigger events which...

Page 93: ...ngle ended signals for subsequent AID conversion The single ended analog voltages are applied to Track and Hold circuits where they are held until the time multiplexed A D Con verter digitizes the stored samples CCO OUTPUT Theory of Operation 2430 Service As the CALCLK signal goes from LO to HI the base of U831D is pulled HI reverse biasing U831C Bias current for 0831 now flows through R834 and R8...

Page 94: ...e A2D REF and then amplified and inverted by U780 to produce an input signal to the A D Converter within the o V to 2 V range needed The amplified signal is applied to the analog input of U560 after being filtered by L780 and C770 3 60 AID Converter A D Converter U560 is an 8 bit flash converter that digi tizes the analog samples from the CCD arrays at an overall conversion rate of 2 MHz See the p...

Page 95: ...vice As in NORMAL Mode acquisitions output enabling of the four latches is controlled by the DS11 DS13 DS21 and DS23 data select lines The Q outputs of the flip flops The Acquisition Latch Switching circuitry multiplexes the latched CH 1 and CH 2 maximum and minimum data bytes to the inputs of the EnvelopeMin Max Comparat r so that each digitized sample from the AID Converter IS comparedto the cor...

Page 96: ...l Display RAM Operation of Horizontal Display RAM U440 is identical to that of the Vertical Display RAM just described The Horizontal RAM chip select CSX is gated through U323D for addresses between 10K and 12K when DISP is LO If the Waveform lIP needs to read data from the Verti cal Display RAM it outputs an address within 8K to 10K address space of the RAM This address block is decoded by U323B ...

Page 97: ...rsors the microprocessor alternately writes the position data for each cursor into the registers just before it is displayed Data is written into the register on the rising edge of the address decoded VCURS clock pulse Theory of Operation 2430 Service Ramp Buffers Ramp Buffers U130 and U140 apply the ten LSBs of the Display Counter address via Address Multiplexer U210 U212 and U221 on diagram 17 t...

Page 98: ... Each displayed character con sists of a sequence of individual dots produced by the Readout State Machine 3 64 For readout displays the face of the crt is vertically divided into 16 character lines each having 40 horizontal character positions on the line Each of these character positions corresponds to a specific location in the readout For YT waveform displays the Display State Machine generate...

Page 99: ...411A and produce the SAMPLE clock having a LO duty cycle of 12 S The S MHz clock signal from the Time Base Controller circuit is buffered and inverted by U413C and is used to drive the Readout State Machine Theory of Operation 2430 Service Display Clocks The state machines of the Display System run on clocks derived from the S MHz clock of the Secondary Clock Generator U710 diagram 7 The Display C...

Page 100: ...the DISDN display done bit applied to pin 10 of U313 is also HI The 250 kHz clock appliedto this enabled AND gate causes the output of U313 to go HI on the fai ling edge to clock the HI STARTDIS bit to the Q output of U414A This latched signal is the DISPLAY bit that enablesthe DisplayCounter clocks via U411C 3 66 To start a display the System ILPwrites a HI for the START bit into Display Control ...

Page 101: ...verter U413D is LO while the RO signal applied to NAND gate U3128 is HI This enables U312B and the output of U412A then con trols the D input signal to flip flop U414B That signal is clocked to the Q output and applied to U223C to control the Z Axis signal ZON Theory of Operation 2430 Service For waveform displays the DOTS bit from DisplayCon trol Register U530 will be set HI by the System LP This...

Page 102: ...sed ROM location within U232 is applied to the enable input of U230 and determines whether the COUNT LOAD line is forced LO U230 disabled by LOAD DECIDE being HI or whether one of the decision inputs is selected via select inputs A Band C of U230 When the LOAD DECIDE bit from U232 is LO it indicates that the state machine is at a decision point as to whether counter U231 should count or load inste...

Page 103: ...NOTE A LOAD L Y CLOCK NOTE TIME BETIIEEN STATES IIHETHERCLOCKED OR LOADED IS 200ns 1 CLOCK CYCLE Theory of Operation 2430 Service TURN OFF RlON AND _ CLOCK DOT COUNTER CKDOTCTC TURN ON RlON _ DELAY _ IIATCHFOR EOCH LO _ END OF CHARACTER DELAY _ DELAY _ CLOCK THE DISPLAY _ COUNTER CLKRAM AND IIATCHFOR CHARACTER ADDRESS 11 DELAY 1 CLOCK 200ns _ IIATCH RO AT _ 00 OF U230 DISPLAY READOUT STATE ADDRESS...

Page 104: ...d clock State 7 disables U230 terminating the test condition 3 70 State 6 data from U232 enablesU230 and selects its D3 input This is the EOCH endof character bit from the character ROM U420 and will only be LO for the last dot of any given character As long as EOCH is HI not the last dot U231 will increment to state 7 on the next State 4 resets CLKRAM HI and disables U230 The next clock loads sta...

Page 105: ... Vertical DAC output connected to pin 3 of U170 develops a voltage across R163 This volt age causes the output of U170 to move in the same direc tion until the feedback current through R164 applies an equal voltage to pin 2 of U170 The output voltage of the Input Buffer at pin 6 is the signed sum of voltages across R163 and R164 The gain of the stage is 1 V per mA differential Theory of Operation ...

Page 106: ... U281 through R160 modifies the reference at pin 3 of Difference Amplifier U281 new reference is one half the output volt age at U282 pin 6 The next voltage from Input Buffer U170 is applied to the input pin 2 of U281 of the Difference Amplifier which now amplifies the difference between the present point position on screen represented by the voltage at pin 3 of U281A and the new position The outp...

Page 107: ...mplifiers Theory of Operation 2430 Service The output of U392D drives the negative horizontal deflection plate H of the crt and operational amplifier U392C Operational amplifier U392C is configured as an inverting buffer with unity gain and its output drives the positive horizontal deflection plate H The selected horizontal signal from U290A is applied to operational amplifier U392A configured wit...

Page 108: ...on occurs should the Cathode Supply voltage tend too negative 3 74 When the Cathode Supply voltage is at the proper level 1900 V the current through R263 and the 19 Mf2resis tor internal to High Voltage Module CR565 holds the voltage developed across C260 at zero volts This is the balanced condition and sets the output of integrator U168A at a level providing correct base drive for 0628 to hold th...

Page 109: ...ice Initially at the time of adjustment the FOCUS and ASTIG potentiometers are set for optimum focus of the crt beam at low intensity After that initial adjustment the ASTIG pot normally remains as set and the FOCUS con trol is positioned by the user as required when viewing the displays When using the FOCUS control transistor 0152 is controlled as described above however an additional current is ...

Page 110: ...rer 15 V GRID BIAS R645 Q640 o TO 15 V CR643 15 V DS491 DS490 CATHODE VOLTAGE 1900 V n 1920 V _j L 1985 V F AC DRIVE C640 FROM PIN 7 OF T525 150V_ o V 150 V 116VMJ MJ 45 V 8 V n 8 V TO 45 V _j L 8 V PARTIAL CR565 Theory of Operation 2430 Service ...

Page 111: ... voltage through resistor E and diode A Capacitor D is charged to a similar dc level through resistor F and R442 Theory of Operation 2430 Service DC RESTORATION The DC Restorer circuit in the High Voltage Module is referenced to the crt cathode volt age via a connection within CR565 Capacitor C labeling shown in Figure 3 10 connected to pin 15 of CR565 ini tially charges to a level determined by t...

Page 112: ...8 Other adjustable level setting circuits include Orthog onality Alignment pot A305 used to rotate the beam alignmentafter vertical deflection This adjustment controls the amount of current through the Y Axis alignment coil around the neck of the crt and is set to produce precise perpendicular alignment between the X and Y Axis deflections The TRACE ROTATION adjustment pot A1077 is a front panel c...

Page 113: ...3 79 Figure 3 11 GPIB data flow diagram SET DAV HIGH SET DAV LOll ACCEPT DATA BYTE SET NRFD HIGH PUT OR CHANGE DATA ON DATA LINES YES 4917 12 ACCEPTOR SOURCE Theory of Operation 2430 Service ...

Page 114: ...nd position or whether it should go to the position defined by the levels from the Horizontal and Vertical DACs Home position applies 2 V to both outputs as determined by resistive divider A130 A132 Analog demultiplexer U130 is used to select and enable the data for the X and Y outputs connected to the external plotter The XYSAMP XY sample bit from the Miscellane ous Register is set LO by the Syst...

Page 115: ... MiscellaneousRegister U760 diagram 1 is used to gate this oscillator signal through the speaker to produce the audio output As long as BELL is LO transistors 0596 0558 and 0592 are off and current is cut off to speaker LS498 The oscillator consrsts of timer U274 configured as an astable multivibrator oscillator and output transistor 0594 used to buffer the oscillator output Current flowing in R27...

Page 116: ...cuit action produces a stable vertical sig nal display of a TV signal by removingpower supply ripple that may be present Either inverted or noninvertedsignals may be displayedwith the TV CLAMP feature 3 82 To set up the Video Option operating modes the Sys tem Processor writes control settings to the TV Control Register diagram20 in the System I O circuitry The latched setting in the register is h...

Page 117: ...ted sync pulses and the output of OS04 is an inverted replicaof that signal Theory of Operation 2430 Service SYNC PICKOFF COMPARATOR The Sync Pickoff Comparator composedof OS04and OSlO switches when the amplitude of a sync pulse crosses the comparator Transistor 0502 and its associated circuitry act as a start up circuit that monitors the dc output level of U610B and applies an offset voltage to p...

Page 118: ... sync pulse to prevent jitter of the HOR IZCLK signal to U524B 3 84 Since the equalizing and serration pulses in the vertical sync block occur at twice the horizontal sync rate see Figures 3 13 and 3 14 every other one must be prevented from triggering the monostable multivibrator to keep the line count correct The DLY D HCLK delayed Horizontal clock applied to the base of U420B via R210 holds tha...

Page 119: ...3 85 Figure 3 13 Video Option waveforms 4917 18 HORIZCLK PLL ERROR U3f1J8 1fIJ U3f1J8 6 VERTSYNC COMPSYNC DLY D HCLK HORIZCLK HCLK 2XH Theory of Operation 2430 Service ...

Page 120: ... VERT SYNC 2 f 1 I 2 I 3 4 I 5__ __ 6 I 7 I 8 I 9 l VERT SYNC 1 f H 1 1 I 2 I 3 i 4 I 5__ __ 6 7 I 8 I 9 l I I RETRACE BLANKING 6 EQUALIZING PULSES 6 EQUALIZING PULSES I TOP OF FIELD 1 6 SERRATED PULSES BOTTOM OF FIELD 2 COMPOSITE VIDEO COMPSYNC U310A 5 HCLK U430B 9 2XH U310A 3 COMPOSITE VIDEO Theory of Operation 2430 Service ...

Page 121: ...ed to the input NOR gates Theory of Operation 2430 Service The DLY D HCLK is shifted one quarter HCLK cycle When the DLY D HCLK is HI the outputs of both NOR gates at the inputs to the PLL Phase Comparator are held LO and the alternate equalizing pulses of composite sync signal are prevented from passing to the PLL Phase Com parator The vertical sync serrations are prevented from passing through N...

Page 122: ...ters at decoded addresses 6808h through 680Fh that are set by the System Processor to determine when the chosen line number in the field selected for triggering is reached The various control registers of the counter are set up to count horizontal clock pulses lines to determine line location in the field For interlaced displays the output from U310B will tog gle This will alternately turn transis...

Page 123: ...ulses but will not be stable with respect to the vertical sync pulses Theory of Operation 2430 Service When TV Line Coupling mode is selected the LlNECPL bit from the Video Option Control Register will be set HI This causes flip flop U524A to be immediately armed when A trigger holdoff ends by forcing a set signal to pin 4 of that flip flop through NAND gate U541B In this mode a trigger will occur...

Page 124: ...must be maintained throughout the entire horizontal interval capacitor C522 and C520 in parallel if FASTCLAMP is not enabled serves as a hold capacitor between back porch samples At some VOLTS DIV settings the Channel 2 Preamplifier is set for higher offset gain Transistor 0419 will be turned on for those settings placing C520 in parallel with C522 to slow down the loop response This prevents osci...

Page 125: ... held there age supply for the 12 V regulator stage formed by Q836 VR929 R245 and R640 With Q240 on R244 is placed in parallel with R436 and both Q148 and Q240 remain saturated Theory of Operation 2430 Service Initially when instrument power is applied the positive plate of capacitor C244 is charged toward the value of the positive rectified linevoltage through R223 The voltage at the base of 0148...

Page 126: ...Figure 3 15 PWM Regulator and Inverter 3 92 4917 14 SOFT START o B 4 H 91 COMPO I e CR426 V SIiITCHED Vee V R144 U155 FEEDBACK R146 V RECTIFIED R145 C944 Theory of Operation 2430 Service ...

Page 127: ...at the transformer primary increases Theory of Operation 2430 Service Optoisolator U155 and resistor R145 form a control network that allows a voltage sensed at the FEEDBACK input to slightly alter the voltage sense reference applied to pin 1 of U233 The FEEDBACK signal is generated by The lower of the two negative input levels determines the actual negative comparison point of the PWM com parator...

Page 128: ...21 AND 0423 PULSES GET WIDER AS THE SOFT START VOLTAGE RISES NORMAL OPERATION PWR t t SOFT OFF START 3 94 Q721 DRIVE Q521 DRIVE Q423 DRIVE Q421 DRIVE OSCILLATOR U233 5 SOFT START U233 8 CONTROL POWER SUPPLY U233 15 Theory of Operation 2430 Service ...

Page 129: ...ervice Prior to being clocked U829A configuredas a mono stable flip flop is in a reset state with its Q output set low This is the normal operating mode and allows the series switch to be controlled by the regulating functions of U233 Capacitor C829 charges to the Control Power Sup ply voltage via R824 and CR824 diode CR824 shunts R934 when charging C829 to provide a relatively fast charging path ...

Page 130: ...tself be highly stable The circuit composed of U180 U170B U900 and associated components produces the two reference levels used by the regulator circuits 3 96 10 V and 5 V References Each of the power supply requlators controls its respec tive output by comparing the output voltage to a known The Low Voltage Regulators diagram 23 remove ac voltage noise and ripple from the various unregulated de s...

Page 131: ... 2430 Service Pin 2 of U470A is pulled down through R477 to the 8 VA supply so that the output of the foldback circuit becomes immediately HI at power on This initial HI holds CR465 biased off thereby preventing a false overcurrent sense and subsequent latchup at start up as the 8 V regulated output seen on pin 3 of U470A rises from zero volts to its normal operating level The over current limitin...

Page 132: ...the Preregulator circuit goes LO the output level of U189A goes HI and turns 0295 on result ing in a LO PWRUP signal to the System J LP This indi cates that the various supply voltages may go out of regu lation in about 10 ms 3 98 Power Up The Power Up circuit composed of U189A 0295 and the associated components provides buffering and level shifting of the LINE UP signal to the System Processor 5 ...

Page 133: ...sed only for instrument calibra tion see the Adjustment Procedure Section 5 This procedure assumes that the operator is sufficiently acquainted with this instrument s opera tion to obtain the initial and subsequent control set tings necessary to perform the procedure Complete instructions for setting the controls to obtain the various operating modes of this instrument are given in the 2430 Operat...

Page 134: ...e variable Function Generator s to greater than 10 V pop open circuit with dc offset adjust 5 Power Supply Range 0 to 20 VDC 50 Q Overload verification TEKTRONIX PS 503A Power Supply a 6 Digital Voltmeter Range 0 to 140 V Dc voltage accu XY Plotter output TEKTRONIX DM 501A DMM racy 0 15 4 1 2 digit display verification Digital Multimeter a 7 GPIB Controller Conform to IEEE 488 1978 standard Check ...

Page 135: ... 103 0090 00 20 Normalizer Input Resistance 1 Mn Input Capaci Check input capacitance Tektronix Part Number tance 15 pF 067 0681 01 21 Pulse Generator Period Range 1 ms to 2 J LS Pulse Check TV triggers for TEKTRONIX PG 502 Range 0 5 ms to 1 J Ls Amplitude sync separation Option Pulse Gensrator s variable from 5 to 5 V 05 only independent pulse top and pulse bottom 22 Sync and Linearity Conforms t...

Page 136: ...the crt screen Set when preceded by a menu selection indicates the stipulated menu function should be turned on or off by pressing the appropriate menu button The function will appear underlined in the menu when turned on not underlined when turned off Control settings not listed do not affect the pro cedure Thisinstrument requiresa 20 minute warm upperiod before performance requirements can be ch...

Page 137: ...ol align the trace to the bottom graticule line b Connect the Power Supply Power Supply should be turned off to the CH 1 OR X input connector via a BNC female to dual banana adapter and a 50 Q BNC cable OFF Select CH 2 COUPLING INVERT Set 50 Q ON OFF OFF Select CH 1 COUPLING INVERT Set 50 Q ON OFF Off Select VERTICAL MODE Set CH 2 1 V 1 V Set CH 1 VOLTS DIV CH 2 VOLTS DIV 1 Verify CH 1 and CH 2 50...

Page 138: ...orizontal graticule line c Set the CH 1 COUPLING INVERT menu to DC on a GND symbol disappears next to the CH 1 scale factor readout b Connect the CALIBRATOR output signal to the CH 1 OR X input connector using a 1X probe 4 6 5 ms A SEC DIV Set OFF On Select CH 1 COUPLING INVERT Set 50 n ON OFF GND OFF On Select CH 2 COUPLING INVERT Set 50 n ON OFF GND Off Select VERTICAL MODE Set CH 2 200 mV 200 m...

Page 139: ...n to select the other cursor it will change from solid to segmented 6 Using the CURSOR DELAY control align the selected cursor segmented with the bottom of the displayed waveform Performance Check and Functional Verification Procedure 2430 Service REV DEC 1986 5 Select CURSOR FUNCTION and set VOLTS on 4 Use the VERTICAL POSITION control to set the bottom of the signal 3 divisions below graticule c...

Page 140: ...Press A B TRIG to set the B Trigger System on Select TRIGGER CPLG and set REJECT NOISE on 30 Repeat subparts 6 through 29 for each VOLTS DIV setting listed in Table 4 2 Skip subparts 26 through 29 when checking the last VOLTS DIV setting in the table 29 Use the VERTICAL POSITION control to set the bottom of the signal 3 divisions below graticule center 28 Set the Calibration Generator STD AMPLI TU...

Page 141: ...ccuracies for CH 2 48 Select VERTICAL MODE and set CH 2 on and CH 1 off Move the cable to CH 2 OR Y Performance Check and Functional Verification Procedure 2430 Service 47 Return INVERT ON OFFto OFF 46 Repeat subparts 6 through 9 to check INVERT accuracy 45 Using the VERTICAL POSITION control set the bottom of the waveform 3 divisions below graticule center 44 Select CH 1 COUPLING INVERT and set I...

Page 142: ...i to check the LF Linearity for the ENVELOPE mode Discount the noise and the envelope fill when performing parts g and i and use 1 84 and 2 16 divisions as limits for those parts j Select STORAGE ACQUIRE and set ENVELOPE on i CHECK That the amplitude of the displayed waveform is between 1 88 and 2 12 divisions h Use the CH 1 POSITION control to align the bottom of the waveform to the bottom horizo...

Page 143: ...l to 6 divisions Performance Check and Functional Verification Procedure 2430 Service REV DEC 1986 f Return the A SEC DIV control to 200 ns and set the CH 1 VOLT DIV control to the next higher setting e CHECK The display amplitude is 4 2 divisions or greater d Set A SEC DIV to 5 ns c Set the generator output level for a 6 division display at the 3 MHz reference frequency then change the output fre...

Page 144: ...under the arrow symbols adjust for minimum ADD display amplitude 4 12 e Select VERTICAL MODE and set CH 1 off d Set the CH 1 and CH 2 VOLT DIV controls to 50 mv c Set the generator output level for a 5 division display of the reference signal on CH 1 b Connect a 50 kHz reference frequency signal from the Leveled Sine Wave Generator to the CH 1 OR X and CH 2 OR Y input connectors via a 50 Q BNC cab...

Page 145: ...cedure 2430 Service REV DEC 1986 i Change the CH 1 VOLTS DIV control to 100 mV increase the generator frequency to 150 MHz and re adjust the output level for a 5 division display Return the CH 1 VOLTS DIV control to 50 mV h CHECK That the cursor readout upper right corner of display indicates 5 00 mV or less g Use the CURSOR DELAY control to align this cur sor to the top of the CH 2 waveform Take ...

Page 146: ...AL POSITION control as required to view the display 4 14 r Set the A SEC DIV control to 200 ns q Select CH 2 COUPLING INVERT and set 50 n ON OFF to ON p Disconnect the 50 n cable from the Calibration Gen erator output and connect it to the output of a Leveled Sine Wave Generator o CHECK That the cursor readout indicates 90 00 110 00 mV Set 50 n ON OFF back to ON n Align the cursors to the displaye...

Page 147: ...ore that 0 05 division while performing part k Performance Check and Functional Verification Procedure 2430 Service k Toggle the VECTORS ON OFF menu button between the ON OFF settings while making the check in the following part j Press the front panel button labeled SELECT i Select STORAGE ACQUIRE and set AVG on h Set the AMPLITUDE control of the generator for a 0 2 V setting g Connect the STD AM...

Page 148: ... button labeled 1 Make the following changes to the front panel setup This step checks the CH 1 trigger source for all trigger coupling settings for both A and B Horizontal Modes The other sources are checked for DC cou pling only Normally checking all coupling modes for one trigger source is adequate since all the sources share common coupling circuitry other sources need only be checked in the D...

Page 149: ... LF settings usually but not always require different amplitudes than the initial setting h CHECK For no stable trigger display free runs for any TRIGGER COUPLING setting in Table 4 3 specifying footnote b Not Triggered at specified amplitude g CHECK For a stable triggered display on both and slopes for all TRIGGER COUPLING settings that are specified at the present Test Frequency aNot necessary t...

Page 150: ... sensitivity of the exter nal sources for the DC trigger coupling setting only Normally checking all coupling modes for one trigger source checked in step 1 of this subsection is ade quate since all the sources share common coupling circuitry other sources need only be checked in the DC trigger coupling setting to verify their signal paths However if a source s trigger sensitivity is very near the...

Page 151: ...rt j to check A EXTl 5 coupling m Select EXT TRIG GAIN and set EXT1 i 5 on I Set CH 1 VOLTS DIV for an on screen display k Remove the 5X attenuator from the test setup and reconnect the setup as in part b j CHECK For a stable triggered display at the DC trigger coupling setting Press TRIGGER SLOPE to check for both and slopes i Set the output amplitude of the specified Test Fre quency to the level...

Page 152: ...50 n cable and a Dual Input Coupler to the CH 1 and CH 2 input connectors Do not use a terminator d Select VERTICAL MODE and set CH 2 off 4 20 c Press the AlB TRIG button to select the A Trigger System b Ensure that the B Trigger Level Readout is set to 0 0 V Adjust if necessary using the TRIGGER LEVEL control Press A B TRIG to display the B TRIG SOURCE menu Set CHAN 1 2 2 Select TRIGGER SOURCE Se...

Page 153: ... panel setup Performance Check and Functional Verification Procedure 2430 Service i Disconnect the test setup h VERIFY That for each press of the STORAGE ACQUIRE button a waveform is acquired and saved on screen g Trigger the display and set SINGLE SEQUENCE on f VERIFY That for TRIGGER LEVEL settings outside the range of the display approximately 200 mV the acquisition stops and the waveform is sa...

Page 154: ...ect TRIG POSITION and set 1 8 on d Position the start of the display to the extreme left graticule line c Set the generator marker period to 1 ms 4 22 b Connect the MARKER output of the Time Mark Generator to the CH 1 input through a 50 Q cable 1 V CH 1 VOLTS DIV Set Off Select VERTICAL MODE Set CH 2 7 Verify A and B Trigger Position Function a Recall the Initial Front Panel Setting by performing ...

Page 155: ...te the A and B SEC DIV control counterclock wise one position to set both acquisition systems one speed slower g VERIFY That one marker per horizontal division is displayed f Set HORIZONTAL MODE to B and set the B SEC DIV control to 500 ns e VERIFY That one time marker per horizontal divi sion is displayed d Set the generator marker period to O S J s c Connect the MARKER OUT signal of a Time Mark ...

Page 156: ...er that is three divisions right of center screen 4 24 m Using the CURSOR DELAY control adjust the DELAY TIME Readout for a reading of 300 00 f LS I Press the DELAY TIME button toggles between DELAY and DELAY TIME on the displayed menu to enable the DELAY intensified zone The DELAY TIME button is located to the right of the CURSOR DELAY control k Press the TIME ON OFF menu button to set TIME ON j ...

Page 157: ...e aligned to the Trigger Point Indicator approximately 3 divisions right of center screen Performance Check and Functional Verification Procedure 2430 Service q Set the HORIZONTAL MODE to B p VERIFY That the falling edge of the A Trigger sig nal displayed in CH 2 is 3 divisions left of center screen o Select DELAY EVENTS and set EVENTS ON OFF to ON Use the CURSOR DELAY control to set the EVENTS CO...

Page 158: ...UTPUT connector this cable will connect the PLOTTER Y OUTPUT to the DMM input later c Connect the PLOTTER X OUTPUT connector at the rear of the instrument to the input of a DMM via a 50 n cable and a BNC female to dual banana adapter When inputting the adapter to the DMM put the side with the bump marked GND to the LOW or input jack b Press the MENU OFF EXTENDED FUNCTIONS but ton twice to display ...

Page 159: ... That the DMM reads 2 000 V 100mV for a period of approximately 30 seconds q Rotate and hold for at least 3 seconds the CH 2 OR Y VERTICAL POSITION control counterclockwise to position the displayed dot to the extreme bottom of the screen p Rotate and hold for at least 3 seconds the CH 1 OR X VERTICAL POSITION control counterclockwise to position the displayed dot to the extreme left of the screen...

Page 160: ...es approximately 50 00 4 28 h Set ABS to ABS VERIFY That the cursor readout indicates approximately 180 00 g VERIFY That the cursor readout indicates approxi mately 360 00 and that TIME CURSOR REF indicates approximately 2 00 ms f Return ABS to and set DEGREES on Press the NEW REF menu button e Select CURSOR UNITS and set ABS to ABS VERIFY That the cursor readout indicates approximately 1 00 ms d ...

Page 161: ...SAVE RECALL SETUP press the menu button labeled RECALL menu will change and then press the menu button labeled 1 i Press the DISPLAY REF menu button to return to that menu Set REF1 off and REF4 on VERIFY That the REF4 trace replaces the REF1 trace h Press the HORIZ POS REF menu button menu will change and set REF1 on for the displayed menu VERIFY That the HORIZONTAL POSITION control can position t...

Page 162: ...RTICAL MODE setting is CH 1 on CH 2 on and ADD on ad Enter the command VMOde to the controller 4 30 ac VERIFY That the CH 2 trace is displayed 2 divi sions below the center graticule line with an intensified zone 2 divisions right of center screen abo VERIFY That the CH 1 trace is displayed 2 divi sions above the center graticule line with an intensified zone 1 division right of center screen aa P...

Page 163: ...nt corner aberrations are within 1 0 2 division or less Exclude the first 20 ns immedi ately following the positive going transition from the measurement REV APR 1988 d Set the CH 1 VOLTS DIV control to 50 mY c Set the generator to produce a 60 Hz five division display and use the CH 1 POSITION control to center the display as required b Connect the fast rise positive going square wave output to t...

Page 164: ...uency to 10 MHz and set the A SEC DIV control to 50 ns h CHECK Display amplitude is between 4 95 and 5 05 divisions g Repeat parts c and d f Set the BANDWIDTH LIMIT menu to FULL Set the A SEC DIV control back to 20 IlS e CHECK Display amplitude is between 4 80 and 5 05 divisions d Increase the generator output frequency to 5 MHz and set the A SEC DIV control to 200 ns c Set the generator to produc...

Page 165: ...unctional Verification Procedure 2430 Service NOTE An easy method of checking the expanded 60 Hz sine wave amplitude is to observe the vertical jitter of the top of the Trigger Point Indicator a small T riding on the sine wave The top of the T shouldnotjitter more than 1division g CHECK The amplitude of the sine wave is 1 divi sion or less f Select SET TV and set CLAMP ON OFF to ON and TV LINE on ...

Page 166: ...R SELECT to select the right most cursor and adjust it for a readout of 2 000 II S 4 34 i Use the CURSOR DELAY control to align the left most cursor to the falling edge of the negative going pulse aligned to the graticule line in part d h Select CURSOR FUNCTION and set TIME on g Switch the A SEC DIV control to 500 ns f Adjust the generator PULSE DURATION control until the negative going portion of...

Page 167: ... while performing the CHECK during the following part g CHECK That the readout Trigger Point Indicator small T riding on the displayed waveform indicates the 2430 is triggered on the last line of field 2 Performance Check and Functional Verification Procedure 2430 Service f CHECK That the readout indicates the highest line number of the previous field for the multi field input signal For example u...

Page 168: ......

Page 169: ...es the semiautomatic routines that use those signals The internal jumper disabling the Extended Calibration EXT CAL menu must be removed to enable the EXT CAL menu choices as was necessary for the The second subsection is Self Calibration SELF CAL is a fully automatic procedure initiated by the user from the front panel No external signals or internal adjustments are required and beyond starting t...

Page 170: ...he jumper or cabinet 5 2 Both the Internal Adjustments and External Calibration subsections require enabling the EXTENDED CALIBRA TION menu Since the internal calibration constants stored by the 2430 can be altered by the user if the EXTENDED CALIBRATION menu is enabled this menu is disabled by the installation of an internal jumper REINSTALLATION OF THE INTERNAL JUMPER TO PREVENT INADVER TENT ALT...

Page 171: ...CAL to display the EXT CAL menu d Press the menu button labeled CAUDIAG menu will change c Press the MENU OFF EXTENDED FUNCTIONS but ton once or twice two presses are necessary if any menu is presently displayed one press if no menu is displayed to display the EXT FUNCT Functions menu b Connect the instrument to a suitable power source and power it ON Allow a 10 minute warm up before per forming t...

Page 172: ...ible at each of the 33 dot locations ADJUST R588 or R584 to align the dots in either a vertically or horizontally oriented line then use the other control to adjust for only one dot at each dot location all three dots superimposed NOTE t ADJUST R583 Vertical Spot wobble control and R584 Horizontal Spot wobble control for maximum overall definition of the displayed dot pattern only one dot visible ...

Page 173: ... are correctly adjusted 100 I 90 ADJl ST t t f HOFF HG IN VOFF VG IN 10 HV fO V 4 ECO I 0 Typical display No 5 needing adjustment Arrows designate display components and procedure steps affecting those components SMALL CR STEPSV W LARGECR STEPSV W I I r T OSS 100 X Y I lnnis f r r V ilrcr I r l OFF VCAIN 10 vrrn vvrrh OSS I X Y 0 _ VERTICALSIDES STEPaa HORIZONTALSIDES STEPZ Adjustment Procedure 24...

Page 174: ...e adjustments were preset at the factory to their optimum setting and further adjustment may result in reduced instrument performance READ THE FOLLOWING NOTE BEFORE CONTINUING WITH THIS PROCEDURE IMPORTANT 5 6 ae Skip to Step 2 Sample Skew Adjustment unless the instrument did not meet the LF linearity requirements as specified in the Performance Check and Functional Verification Procedure ad Exit ...

Page 175: ...tor output frequency part d until only one or two cycles of the untrig gered sine wave are displayed about 100 kHz Use a generator with a highly stable frequency out put such as the TEKTRONIX SG 503 NOTE c Set the generator output level for a 5 division display at a frequency of 1 MHz then change the output frequency to 100 MHz b Connect the output of the Leveled Sine wave Gen erator to the CH 1 a...

Page 176: ...ted in part d 5 8 e Change the CH 1 VOLTS DIV control to 50 mV and adjust the generator amplitude for a 6 division display d Set the normalizer for a square front corner over approximately the first 40 J LS 0 4 division of the positive portion of the waveform c Set the generator output level for a 6 division display at a frequency of 1 kHz b Connect the HIGH AMPLITUDE output of the Cali bration Ge...

Page 177: ...the CH 2 input connector d ADJUST L431 for as flat a response as possible This coil is located on the Main circuit board Adjustment Procedure 2430 Service REV DEC 1986 Adjust the coils in the following parts so their slugs are out approximately the same amount NOTE c Set the generator output level for a 5 division display at a frequency of 100 kHz b Connect the positive going FAST RISE output of t...

Page 178: ...strument fails the Self Calibration otherwise Self Calibration has been completed NOTE 5 10 d Press the menu button labeled SELF CAL RUN NING will be displayed in the lower right corner of the crt screen for approximately 10 seconds as the instrument performs its automatic calibration routine c Press the menu button labeled CAUDIAG menu will change b Press the MENU OFF EXTENDED FUNCTIONS but ton o...

Page 179: ...NECT TO 0 2V to CONNECT TO 2 0V change the generator output to 2 000 volts and press the ADEN button REV DEC 1986 g Press the ATTEN BUTTON again RUNNING will be displayed near the lower right corner of the screen f Press the menu button labeled ADEN CONNECT CH1 AND CH2 TO 0 2V will be displayed and set the generator output to 0 200 volts e Set the Calibration Generator for a DC output see the gene...

Page 180: ...equence RUNNING will disappear from the crt screen and PASS will be displayed above the TRIGGERmenu button label If the calibration rou tine is NOT successful FAIL will be displayed above the TRIGGERbutton label Perform the fol lowing parts only if the instrument fails the Trigger Calibration sequence otherwise Trigger Calibration is complete NOTE i When the display changes from CONNECT TO O 5V to...

Page 181: ... automatic EXTENDED CAL the manual adjustments and dynamic calibration Adjustments that remain for the display system and CCD output amplifiers and those requiring external stand ard test signals are not automatic but they are aided by the built in programming The 2430 supplies the test sig nals for the display system and CCD output amplifier adjustments and does the actual calibration of the vert...

Page 182: ...proximately 2 the ATTEN calibration fails Barring 2430 component problems a failure indicates either that the internal reference is faulty or that the applied voltage is not a valid standard refer ence voltage 6 2 Traceability to the National Bureau of Standards NBS requires that the stated accuracy of an instrument has been established through calibration with equipment whose accuracies have been...

Page 183: ...erve the following precautions to avoid component damage This instrument contains electrical components that are susceptible to damage from static discharge Table 6 1 lists the relative susceptibility of various classes of semi conductors Static voltages of 1 kV to 30 kV are common in unprotected environments Static discharge can damage any semiconductor component in this instrument The following ...

Page 184: ... instrument Use a nonresidue type cleaner preferably isopropyl alcohol or a solution of 1 mild detergent with 99 water Before using any other type of cleaner con sult your Tektronix Service Center or representative The 2430 should be visually inspected and cleaned as often as operating conditions require Accumulation of dirt in the instrument can cause overheating and component breakdown Dirt on c...

Page 185: ...ng procedure are the CH 1 and CH 2 Attenuator assemblies Clean these assemblies only with isopropyl alcohol as described in Step 4 of the cleaning procedure In addition all other Front Panel controls are sealed and require no maintenance Maintenance 2430 Service CLEANING To clean the interior blow off dust with dry low pressure air approximately 9 psi Remove any remaining dust with a soft brush or...

Page 186: ... flush with isopropyl alcohol Resolder defec ken or cracked circuit run plating tive connections Determine cause of burned items and repair Repair defective circuit runs Resistors Burned cracked broken blistered Replace defective resistors Check for cause of burned component and repair as necessary Solder Connections Cold solder or rosin joints Resolder joint and clean with isopropyl alcohol Capac...

Page 187: ...nt numbers and electrical values of com ponents in this instrument are shown on the schematic diagrams Refer to the first page of the Diagrams sec tion for the reference designators and symbols used to identify components Important voltages and waveform Functional blocks on schematic diagrams are outlined with a wide grey line Components within the outlined area perform the function designated by ...

Page 188: ...matic diagram and circuit board illustration has a grid border along its left and top edges A table located adjacent to each diagram lists the grid coordinates of each component shown on that diagram To aid in physically locating components on the circuit board this table also lists the grid coordinates of each component on the circuit board illustration As a further aid to power supply distributi...

Page 189: ...Service 2 Diagnostic Test Routines The instrument firmware contains diagnostic routines that may be selected by the user from the front panel to further clarify the nature of a suspected failure The desired test is selected using the MENU buttons after entering the Extended Diagnostics Mode Entry into the Diagnostic Mode and its uses are explained in the Cali bration and Diagnostics discussion lat...

Page 190: ... the power supply circuitry A defective component elsewhere in the instrument can create the appearance of a power supply problem and may also affect the operation of other cir cuits Use the power supply troubleshooting charts to aid in locating the problem 6 10 POp Power Reading Ripple Supply Volts mV 61 V 59 05 to 62 95 100 15 V 14 74 to 15 26 10 10 V Ref 9 97 to 10 03 10 8V 7 85 to 8 15 10 5V 4...

Page 191: ...unding 2 Verify that the line rectifier filter capacitors are discharged prior to performing any servicing 1 Disconnect the instrument from the ac power source before removing or installing components To reduce the possibility of personal injury or instru ment damage observe the following precautions MAINTENANCE PRECAUTIONS Corrective maintenance consists of component replace ment and instrument r...

Page 192: ... is maintenance information only not a performance requirement The bandwidth rise time and aberrations should be measured with the affected channel set to 200 mV per division 6 12 3 The change in front corner aberrations for changing the resistor is less than or equal to 1 2 Decreasing the resistance increases bandwidth and rise time while increasing front corner aberrations 1 Increasing the resis...

Page 193: ... 003 0502 00 1 2 in 003 0822 00 5 Hex Wrenches 0 050 inch 1 16 inch Assembly and disassembly Allen Wrenches 6 Long nose Pliers Component removal and Diamalloy Model LN55 3 replacement 7 Diagonal Cutters Component removal and Diamalloy Model M554 3 replacement 8 Vacuum Solder No static charge retention Unsoldering static sensitive Pace Model PC 10 Extractor devices and components on multilayer boar...

Page 194: ...eat transferring mounting block Reinstall the mounting block and bushings when replacing these transistors Use a thin layer of heat transferring compound between the insulating block and chassis when reinstallingthe block 6 14 After replacing a power transistor check that the col ector is not shorted to the chassis before apply ing power to the instrument Any replacement component should be of the...

Page 195: ...he instrument cut the leads so they protrude only a small amount through the reverse side of the circuit board Excess lead length may cause shorting to other conductive parts Maintenance 2430 Service Excessive heat can cause the etched circuit con ductors to separate from the circuit board Never allow the solder extractor tip to remain at one place on the board for more than three seconds Solder w...

Page 196: ...6 2 2430 circuit boards 4917 07 A14 FRONT PANEL BOARD A16 LOW VOLTAGE POWER SUPPLY BOARD A10 MAIN BOARD A11 TIME BASE DISPLAY BOARD A17 HIGH VOLTAGE POWER SUPPLY BOARD 1 A12 PROCESSOR BOARD Maintenance 2430 Service ...

Page 197: ...310 Connect the other end to pin 11 of T117 the pin protruding from the side of the transformer near its right rear corner Measure across those two connections with a voltmeter to ensure the capacitors are discharged WARNING I Maintenance 2430 Service Reverse parts a through h to install the cabinet h Grasp the handle hubs at right and left sides of the instrument and pull outward While holding th...

Page 198: ...at J125 right rear corner of the Processor board on the underside of the Top chassis 6 18 d Using a 7 32 inch nutdriver rotate the two black retaining latches counterclockwise 1 4 turn to unlock them The two retaining latches are located near the left front and left rear corners of the Timebase Display board c Remove the three mounting screws securing the Timebase Display board to the Center chass...

Page 199: ...t p Remove the anode lead from its retainer and dress it away from the lower square hole in the Main chassis Take care not to separate the male end of that lead from the female end Maintenance 2430 Service o Disconnect the ribbon cable connector from J150 at the front of the Side board n Disconnect the ribbon cable connector from J166 on the Low Voltage Power Supply board and push it towards the r...

Page 200: ...oval a Perform Step 1 to remove the cabinet from the instrument 6 20 Reverse parts a through p to install the Main board m Lift the board up from the instrument and back from the Front casting to complete the board removal I Remove the two mounting screws securing the Main board to Main chassis k Disconnect the flex cable connector from J114 and the two retaining latches J114 is located in left re...

Page 201: ...ottom corner nearest the rear the other at the top corner nearest the front of the instrument h Disconnect the remaining ribbon connector from J105 on the Main board Maintenance 2430 Service REV DEC 1986 g Disconnect the cable connectors from J172 and J173 located at the front edge of the board and from J162 and J176 located the rear edge of the board f Discharge the five posts on the side of the ...

Page 202: ...f the assembly 6 22 o Grasp the front of the Low Voltage Power Supply bracket and lift up until the Low Voltage Power Supply board is clear of the retaining latches unlocked in part m n Carefully route the disconnected cables away from the top side of the Low Voltage Power Supply assembly m Remove the mounting screw securing the Low Volt age Power Supply assembly to the Main chassis The screw is l...

Page 203: ...nd pull it forward while guiding the crt anode lead and the other cable discon nected in part f through their holes in the crt shield It may be necessary to reposition the ribbon cable disconnected in part j as the removal of the crt is completed m Remove the crt frame from the Front casting Guide the flex cable disconnected in part k through its slot in the Front casting while removing the crt fr...

Page 204: ...of a screwdriver through the hole in the Low Voltage Power Supply board that is directly above the Attenuator to be removed Remove the screw securing the rear of the Attenuator to the Main Board c Insert the tip of a short screwdriver through the large slot in the front casting above and right of the asso ciated input BNC connector Remove the screw securing the front of the Attenuator to the Main ...

Page 205: ...the 2430 in about 10 seconds A Self Calibration may be performed by the user at any time Important times are after the instrument SELF CAL Self Calibration generates test voltages to the Peak Detectors via the Cal Amplifier and DAC system These voltage are used to set the gains offsets and or centering and balance of the CCD Samplers Peak Detec tors and Preamplifiers Calibration constants required...

Page 206: ...erred to a qualified service person for any necessary servicing if a correct calibration attempt does not pass 6 26 NOTE Attempting an EXT CAL for A TTEN and TRIG cali bration without having the correct dc voltage levels available will cause the FAIL message to appear above the menu label of the failed areas However in the event of a failed attempt the previous calibra tion constants will not be o...

Page 207: ... to analog con verter circuitry and all the output sample and hold circuits of the DAC System CAL PATH ON OFF turns on or off the calibration signal path to the Peak Detectors It is a useful diagnostics device in the event that large offset errors have driven the display off screen Switching CAL Special Diagnostics Features The menu choices under SPECIAL are normally dis abled to the user and if t...

Page 208: ...tored calibration con stants may not permit accurate measurements to be made If you miss the code the first time as is usual unless you are expecting a failure you must turn off the 2430 and turn it back on again to rerun the tests It takes a little practice to read the code from the LEOs 8 After flashing out the coded number of the first failed test the diagnostics continues on with the remaining...

Page 209: ...place the nomi nal COLD START calibration constants with actual calcu lated values External test equipment and access to inside of the scope are required to perform the EXTENDED CAL procedures needed Maintenance 2430 Service After SELF CAL has been done the REPET cal in the EXT CAL menu must also be done if the scope is to be operated in the REPET mode The ADEN and TRIGGER choices normally disable...

Page 210: ...be done to deter mine the current status each time EXTENDED DIAGNOS TICS is entered from the front panel status SELF DIAG warm up EXT DIAG status EXT CAL status SELF CAL All the 2430 calibration and diagnostic routines are accessible through the EXTENDED FUNCTIONS menu and via the GPIB The EXTENDED FUNCTIONS menu is selected by the MENU EXTENDED FUNCTIONS button when no other menus are displayed P...

Page 211: ...en run since the last COLD START no status will be displayed If an upper level test in the set such as REG is run all tests in the REG test hierarchy will be done and labeled with a PASS or FAIL status blank indicating that the test has not been run is displayed see Figure 6 4 In addition if the instrument is not fully calibrated the word UNCALD is displayed near the bottom of the screen above the...

Page 212: ...ded Calibration The EXTCAL TESTtype allows specifying the calibra tion sequence TESTNum to be performed The calibration routine specified may be any steps or sub steps of the EXT CAL or SELF CAL routines The user is responsible If an error occurs during SELFCal it is reported to the controller when the ERRor query is issued to the instru ment ERRor returns a string of error numbers up to nine resu...

Page 213: ...tial troubleshooting steps as an aid in determining where to start Maintenance 2430 Service These troubleshooting procedures are broken down into several types The 2430 Troubleshooting Procedures of Table 6 6 provide a description of the tests made and in many cases the troubleshooting procedure used in case of a test failure Video Option troubleshooting procedures are given in Table 6 7 Other are...

Page 214: ... NOT DETECTABLE BY SELF DIAGNOSTICS NO NO DO SELF CAL AND EXTENOED CAL STEPS YES PROCEDURE 7 EXTENDED DIAGNOSTICS PROCEDURE 6 NO DISPLAY PROBLEMS PROCEDURE 3 POWER DN DIAGNOSTICS 6 34 4917 30 NO NO PROCEDURE 5 GPIB OPERATION NO PROCEDURE 2 CRT DISPLAY CHECK Maintenance 2430 Service ...

Page 215: ...ng or wrapped over but the power on test runs the front panel controls and the EXT DIAG menus may still be useful Attempt to use the diagnostics to determine the failed tests Also read the binary code of the first failed test that is flashed by the Trigger LEDS during the power on sequence Use that information as a starting point for troubleshooting using the steps indicated for the failed test in...

Page 216: ...at it is working If that is ok then assume that the problem is in the analog portion of the Jitter Circuit However if the Jitter Correction circuit is found to be working correctly and the waveforms are still distorted specifically spikes then the problem may be with the Phase Clock Array Outputs A10U470 To check U470 see NO SIGNAL ACQUISITIONS in this table MISSING DATA POINTS IN REPET c If these...

Page 217: ...OFF TRIGGER A TRIGGER SOURCE A lEVEL SLOPE MODE B TRIGGER SOURCE MODE CH 1 and CH 2 DC 2V Traces to graticule center VERTICAL MODE COUPLING VOlTS DIV POSITION 500ns B HORIZONTAL A and B SEC DIV MODE 5 Check that the inputs to U752 are gated to the outputs of U752 The only time they are the same is if both pin 1 and 19 are low If a WORD trigger probe is not available the following setup may be used...

Page 218: ...ne In the MUXTEST only the MUXSEL signal output lines are being driven No out put will be seen on the s7 or SHCLK lines pins 29 and 30 respectively 1 Check pins 26 27 28 29 30 and 15 for active output signal switching These signals are all asynchronous so a stable display pattern is not possible without going to SAVE mode on the test scope NOTE Whenprobing around the Front PanelII Pcircuitry it is...

Page 219: ... pots CH 1 Vertical Position CH 2 Vertical Position Horizontal Position Cursor Delay Position 4 Power on the 2430 When it does the power on test it will signal a test failure of 4300 on the Trigger LEOS and there will be no display on the 2430 crt 3 Connect the test scope to observe the AOUTO signal at RSOOpin S Trigger the test scope on MUXSEL2 at RSOO pin 4 Set the SEC DIV switch to 100 s and th...

Page 220: ...f the 2 kHz is missing check back to the oscillator circuit A12U274 1 Connect a probe to the emitter of A120592 Then select the B TRIGGER SOURCE menu and press the BEZEL switch for WORD The voltage should go close to 4 V with about a 1 V p p 2 kHz square wave superimposed upon it peak of 5 V Remove the word trigger probe then Bell Circuit schematic diagram 20 BELL PROBLEM 12 The two remaining anal...

Page 221: ... 3 and each multiplexer output pin should have a steady dc voltage level present 3 If the test point voltages are good the DAC SYSTEM is operating normally to this point Trouble shoot the DAC multiplexers U831 U821 and U830 and the individual DAC output ports schematic diagrams 5 and 6 2 Check TP660 also on the Main Board for 1 25 V 1 Check TP650 found on the Main Board for 0 V Symptoms are CCD an...

Page 222: ...ffset goes down CT11 U840 1 2048 0 V 4 06 V 10 89 V 3 side goes up CT21 U840 8 1 side goes down CM11 U841 1 1500 0 37 V 1 35 V 1 35 V CM13 U841 7 CM21 U841 8 CM23 U841 14 0011 U840 7 2200 10 29 V 5 88 V 14 07 V Gain increases 0013 U840 14 0021 U661 14 0023 U631 14 JIT1 U661 1 3841 2 54 V 7 69 V 2 23 V Fast Ramp Slope JIT2 U661 7 increases for more counts per sec ALVL U640 1 2176 0 09 V 1 37 V 1 36...

Page 223: ...riggering will be unstable If these levels are not correct suspect the corresponding emitter diode or the transistor emitter base junctions as being defective Observe that 0783 has no emitter diode so suspect the transistor itself or 0782 0783 15 V 15 V 5V 0772 LO LO HI 0771 LO HI LO 0761 HI LO LO SEC DIV 500 ns 1 IlS 10 IlS 1 Check the emitter voltages for logical HI LO as follows If not troubles...

Page 224: ...hoot the display problem 1 If the hardware and software are available to interface a 2430 to a GPIB controller then run the Extended Diagnostics test Troubleshoot any failed diagnostics test as indicated in Procedure 7 Extended Diagnostics test may be run via the GPIB interface to track down failed devices when the Front Panel is locked up due to a front panel failure or when there is no display v...

Page 225: ...troubleshooting procedure 4 If the INTENSITY pot changes the DAC settings in the FORCE DAC test the pot and pot scanning circuitry are ok if not troubleshoot the Front Panel 3 Check the ZINT signal on pin 2 of U227 Does it vary correctly with the DISP INTENSITY control If yes suspect U227 If no then use the FORCE DAC test to verify the INTENSITY pot and the DAC SYSTEM 2 If the signal at U227 pin 1...

Page 226: ...CR500 and VR316 for shorts or opens 1 Check the HIGH DRIVE FOCUS adjustment Poor Focus at High Intensity 5 Check the intensity grid cathode and anode voltages for correct levels If not correct trouble shoot faulty circuit An HV probe is required for the following step WARNING I 4 Check for 300 Vat the junction of R248 and R247 If not correct check CR611 CR610 C618 and the 150 V peak ac supply 3 Ch...

Page 227: ...IAGNOSTICS If unfamiliar with the use or operation of the extended diagnostics routines of the 2430 the Calibra tion and Diagnostics and information supplied in the Diagnostics subsection of this section may prove quite useful 7 EXTENDED DIAGNOSTICS 7 Is display switching correctly for dots envelope vector and readout displays If not check multi plexer U290 and select signals AMPOand AMP1 6 If the...

Page 228: ...ting shorts to other data lines All register names have the convention of assuming the name given to the schematic designated chip select line for that register i e MISC is the name of the chip select on the time base display board to registers U532 and U540 From this level all register tests are selected in turn Individual tests may be executed by selecting test numbers 2100 through 2600 If marke...

Page 229: ...t U854 pin 11 is set to the state of U860 pin 19 If DIAGOfailed and the chip selects to U854 and the signal to U854 pin 11 are ok then U854 is probably defective 4 Test for a chip select at U854 pins 1 and 19 LO enables If not correct troubleshoot System Address Decode circuitry U884 U862 and U866 3 Check that U860 pin 19 clocks from LO to HI and remains HI after the trigger strobe pulse returns t...

Page 230: ... for a LO to HI transition when BUSTAKE on PCREG U860 pin 16 is set from LO to HI if not then check U332D schematic diagram 2 for correct gating 3 Check that BUSTAKE on PCREG U860 pin 16 has LO to HI and HI to LO transitions on alternate PCREG chip selects If not suspect problem with U860 2 Run test 2130 in CONTINUOUS MODE and check for INTREG chip select at U654 pin 1 and 19 If not present troubl...

Page 231: ...ster test waveforms 1 Set up the test scope as per Step 1 of the 2110 troubleshooting procedure Now using CH 2 probe If test FAIL then look for failure using the following steps Troubleshooting Procedure Pin 15 of U550 is then set HI and SSREG bits 0 and 1 are tested for HI If the test fails the test result is set to FAIL NOTE The inputs of U542 pins 2 and 4 are wired together A BUSTAKE is execute...

Page 232: ...orrect the problem 2 Run test 2160 in CONTINUOUS mode and check that U550 pin 1 COMREG is set LO during the period that the clock to U550 pin 9 WRR has a LO to HI transition This may be done by saving the COMREG signal in REF1 and displaying while acquiring the clock pulse on U550 pin 9 If these signals are not coincident then troubleshoot the cause Now using CH2 probe 1 Set up the test scope as p...

Page 233: ...iagram 1 to isolate the problem Now using the CH 2 probe 1 Set up the test scope as per Step 1 of the 2110 troubleshooting procedure If test FAIL then look for failure using the following steps Troubleshooting Procedure TVREG U750 pin 2 bit DO is then set to 1 and PMISCIN bit D7 is tested If the test fails the test result is set to FAIL TVREG U750 is set 00000000 and PMISCIN A12U750 pin 3 schemati...

Page 234: ...l if not a match Running the test from this level will test all the Display Control registers These tests will utilize four bit patterns to detect faults If marked FAIL at this level go to the lower levels in the menu to test for the failed register The four bit patterns sent in each of the register tests are as follows Testing Method Display Control Registers schematic diagram 17 2200 TB DSP 3 Ch...

Page 235: ...ch test fails and the bit pattern one may easily determine a bus problem by observing which bits are the same in the failed tests The MOOECON register is two components latch U541 and read back butter U542 The test result is set to PASS any failure sets it to FAIL Testing Method Mode Control Register A11U541 and A11U542 schematic diagram 17 2220 MOOECON If ok repeat steps 2 and 3 for U540 and repl...

Page 236: ...TINUOUS mode and check U530 pin 1 for DISCON LO during the time of the trigger strobe If not troubleshoot the Register Select circuit U550 and U450D for proper operation Using the CH 2 probe 1 Set up the test scope as per Step 1 of the 2110 troubleshooting procedure If test FAIL for all test then look for failure using the following steps Troubleshooting Procedure NOTE The readback bit bit 0 is th...

Page 237: ...g Method Time Cursor Register All U441 schematic diagram 16 2320 TCURS 4 Check U141 pins 1 and 19 for the YDIAG pulse after the clock pulse to U241 If ok replace U141 If not present replace U550 schematic diagram 17 3 Select one pattern and check each output relative to the REF1 clock pulse for the proper level for that bit pattern If incorrect replace U241 2 Check VCURS clock to U241 at pin 11 fo...

Page 238: ...as the source to the 0 bus U210 U212 U221 The inputs to U130 are the bits 01 05 where 01 03 O and 04 05 are the bO b1 data of pattern To read back properly shift the pattern left 3 bits and use only the lower 5 bits of XDIAG U243 The test result PASS MISC 00100000 Significant bit is b5 ZAXIS OFF MODECON 00001000 Significant bit is b3 U140 lower half OISCON 01100000 Significant bits are b2 b5 b6 an...

Page 239: ...d be for several rea sons other than U140 If run from this level all four tests are selected in turn or one may execute anyone test by selecting 2341 to 2344 Testing Method Readout Buffer U140 diagram 16 2340 U140 5 Verify the chip enable to U130 pins 1 and 15 is LO If ok to here replace U130 4 Verify the outputs of U221 U212 and U210 are stable and correct after the LDCOUNT strobe to the previous...

Page 240: ...oblem bit s look for the bit column in the failed tests that are the same Test 4 00101101 is loaded and read back via U141 Test result is set to FAIL if not a match on bits 0 through 5 Test 3 10010110 is loaded and read back via U141 Test result is set to FAIL if not a match on bits 0 through 5 Test 2 01001011 is loaded and read back via U141 Test result is set to FAIL if not a match on bits 0 thr...

Page 241: ...S OFF MODECON 00010000 Significant bit is b3 U240 DISCON 01100000 Significant bits are b2 b5 b6 and b7 STOPDIS enable 0 bus not ENV mode Initialization This test requires the display state machine to be operative There is no good way to insure that it is functional and there have been no previous tests to help find that out Therefore if this test fails it could be for several reasons other than U2...

Page 242: ...bus 3 Verify that U323A pin 3 is LO 2 Verify that after LDCOUNT strobe the outputs of Address Multiplexers U222 U220 U211 are stable and of the correct level for the test selected 1 Run test 2350 in CONTINUOUS mode and verify the LDCOUNT strobe pulse at pin 11 of U222 U220 and U211 Now using the CH 2 probe Set up the 2430 test scope as in Step 1 of the 2110 troubleshooting procedure Troubleshootin...

Page 243: ... signals to it 5 Check pin 20 DEY and pin 18 CSY of U431 for a negative strobe coincident with the YSEL strobe If either is not present troubleshoot U421 and the input signals to it 4 If the input and output data patterns of U322 do not match replace U322 If they match each other but are not correct suspect a problem with Vertical RAM U431 Run test 2361 through test 2364 to see if a patterns fail ...

Page 244: ...he LO portion of the trigger strobe and that activity can be seen If the WE signal is not correct troubleshoot U422 and the input signals to it 5 Check pin 20 DEX and pin 18 CSX of U440 for a negative strobe coincident with the XSEL strobe If either is not present troubleshoot U421 and the input signals to it 4 If the input and output data patterns of U314 do not match replace U314 If they match e...

Page 245: ...riod of about 200 s if not present replace U670 3 Position the CH 2 display down to allow room and probe U641 pin 11 through 18 while REFl sig nal is LO and REF2 signal is HI Compare the results to 01000000 where U641 pin 11 is D7 and U641 pin 18 is DO If they do not compare replace U641 2 Position the CH 2 display down to allow room and connect the CH 2 probe to U641 pin 1 Save CH 2 into REF2 and...

Page 246: ... number for the troubleshooting procedure for each Shift Register If they are all ok replace the suspected Shift Register if not troubleshoot the bad input 3 If U380 pin 2 is LO then run test 2560 and troubleshoot using the procedure given for that number 2 Check U380 pins 1 and 2 If both are HI during the trigger strobe HI and pin 3 does not follow then replace U380 If neither pin 1 nor 2 is HI t...

Page 247: ...ty ACD line is the data input Repair if inactive 2 Check U530 pin 8 for activity PD SR ClK signal line if inactive repair 1 Check U530 pin 9 for a HI level If lO then check R531 and source of 5 v Run test 2530 in CONTINUOUS mode Using the CH 2 probe NOTE For the following set the Trigger POSitionof the test 2430 to 3 4 If using an analog scope for testing use the appropriate holdoff and trigger le...

Page 248: ...ocedure For this test the MSB of A10U851 pin 13 will be compared with what the MSB should be with each shift of the register If one of the bits differs from the loaded in pattern the test fails Testing Method DAC Input Shift Registers A10U850 A10U851 schematic diagram 5 2560 SYSTEM DAC 4 If all inputs are good replace U140 3 Check U140 pins 1 and 2 for activity ACD line is the data input repair if...

Page 249: ...llowed to be set LO as it would reset the GPIB chip and we cannot restart it from the diagnostic routines The HOREG register is two integrated circuits U762 is a latch and the read back is U761 If all tests pass the test result is set to PASS any failure sets it to FAIL From this level all four tests are selected in turn Individual test may be called by selecting test numbers 2610 to 2640 The test...

Page 250: ...ts may be executed from this level 3000 or from any of the nine sublevels 3100 through 3900 or any individual test may be executed by entering test number 3x10 through 3x40 x 1 through 9 Zero shifted right through a field of ones with decrementing address Zero shifted left through a field of ones with incrementing address One shifted right through a field of zeros with decrementing address One shi...

Page 251: ...nable lines are defective the processor system will not function and the Kernel tests will need to be executed to isolate the problem Therefore if the RAM test fails the most likely problem is U668 See Procedure 8 for the Kernel test MAIN SYSTEM RAM A12U668 3300 A12U668 4 Check the data I O pins U440 pin 9 10 11 13 14 15 16 and 17 for activity when test 3210 is selected If no activity stuck HI or ...

Page 252: ... output enable line to U600 OE pin 20 If no activity work backwards and find the problem 1 Check for LO on chip select line U600 pin 18 Repair if not LO Run test 3610 in CONTINUOUS mode If test FAIL then look for failure and correct using the following steps Troubleshooting Procedure ACQUIRE RAM A11U600 schematic diagram 8 3600 A11U600 3 If the checks in Steps 1 and 2 are ok replace U430 2 Check f...

Page 253: ...fail the most likely faults are a stuck data line to Waveform Data Buffer A 12U352 a bad select signal to A 12U352 or Buffer A 12U352 itself COEFFICIENT RAM A12U432 schematic diagram 2 3800 A12U432 4 Check the data 1 0 pins of U440 pins 9 10 11 13 14 15 16 and 17 for activity If no activity when output enable is LO then suspect U352 otherwise check U440 3 Check for activity on the output enable li...

Page 254: ...at only a sub test is being executed The Front Panel Processor test first sets all test results to NULL Any failure to complete all the tests will result in a locked front panel Depending on the nature of the failure the Trigger LEDS may be latched in the first number of the test level that failed the failure code may be flashed out on the LEDs if it is the first failed test or it may make it thro...

Page 255: ...ange the Front Panel ILP it is possibly defective Figure 6 9 Front Panel ItP diagnostics test CH 1 2V A 51 s 5V _T 84ms TO NEXT__ PULSE TRAIN OV ___ 71 s I 71 s I 71 s I 4917 29 2 Turn the power back on and observe the signal at pin 14 See test waveform illustration of Figure 6 9 for correct waveshape and timing 1 Turn off power and short pins 1 and 2 of J155 together The pins must remain shorted ...

Page 256: ...gger strobe If the strobe is ok replace U861 If missing test for 4 MHz at U700 pin 5 and replace U700 if the 4 MHz clock is ok 4300 A13U700 pin 12 WR TO HOST 2 Check U861 pin 6 for a LO to HI transition from the strobe at U861 pin 1 If occurring replace U861 1 Check U861 pin 1 for a negative strobe during the HI period of the trigger strobe If not present replace U862 4200 A13U861 pin 6 FPDNRD 2 C...

Page 257: ...is defective 4710 HIGH Troubleshooting Procedure There is no hardware exercised for this test The operating system is informed by the front panel pro cessor if the battery voltage is either high or low The test is to read a memory location where the System P has stored the status after checking with the FPP If the status is unknown the result is NULL If the test passes it means that it is not defe...

Page 258: ...rminate properly If 5100 fails it could be the Waveform Processor code ROMs or the Waveform P itself U470 In any event the Waveform Processor Kernel tests will need to be run to diagnose the source of the problem Testing Method 5100 RUN TASK The Waveform P command memory has been checked out by this time as well as the bus structure that permits the System P to control the Waveform P bus The Wavef...

Page 259: ...Diagnostics menu show the results of the last test ran If a defective device that has previously caused a FAIL flag to be set is replaced the test must be run again to obtain a PASS indication in the menu Some of the CRCCs check sums are computed at power down and will be valid only at power up Therefore executing tests 5000 through 5003 will only display the flags that resulted from power up diag...

Page 260: ... the reference memories If the data is lost with a short power off check capacitor C896 and its connect and discon nect circuitry Troubleshooting Procedure Waveform Data 6300 WFM HEADERS If the last front panel settings have been lost the instrument will be set up in the INIT PANEL configuration in the SAVE RECALL SETUP menu If the power remains off for an extended period more than 3 to 5 days the...

Page 261: ...em to be functioning normally to this point check the shared clock signals at TP345 R366 R465 and R466 If these points are not switching change the CCD Clock Drivers U350 and U450 2 If the clocks are running correctly at the collectors of 0450 0460 0550 and 0560 check to see if pins 2 3 5 6 and 7 of R470 are switching correctly compare pins 2 3 4 and 5 to waveforms 68 through 71 on diagram 10 If n...

Page 262: ...hey do not make sure the bases are switching on and off If they are switching and a collector is not check the transistor for a collector to emitter short If not switching on the base trace the associated DS signal back to the Time Base board The timing relationships of the OSAM and the DS signals are shown in waveform 45 through 51 of the System Clocks schematic diagram 7 5 Observe the voltage at...

Page 263: ...tional Testing Method Preamplifiers A1OU320 CH 2 and A1OU420 CH 1 schematic diagram 9 8000 PA NOTE If any CCD or Peak Detector is changed do not run a SELF CAL until the CCD OUTPUT Gain has been set using the EXT CAL ADJUSTS test pattern number 6 Adjust the 2 division gain for the changed channel Side 1 and Side 2 according to the directions given in the display 2 If the DAC system is functioning ...

Page 264: ...e Force DAC function Varying the channel balance should appear as a dc offset change to the vertical signal level Prior to making any adjustments after a COLD START either with the Front Panel controls or the Force DAC function the signal at the output of the Peak Detectors should have a 8 7 V dc level with an ac signal replica of the input signal of approximately 0 5 V peak to peak The check is s...

Page 265: ...ls indicated on the schematic diagram in the service manual 3 Use the SPECIAL menu choice of CAL PATH ON to determine whether the offset error is prior to the Peak Detectors or after Troubleshoot in the appropriate direction to locate the source of the offset error 2 Use the FORCE DAC test to determine if the CH1 PA POS and or CH2 PA POS voltages are being controlled by the DAC System If not troub...

Page 266: ...king a ground acquisition in non invert Then an acquisition is made in INVERT and a new balance DAC voltage is calculated that will keep the trace shift between non invert and INVERT within limits for calibration or diagnostics This is done until balance is within specification or until the maximum number of acquisitions has been reached If the result is within specification prior to acquisition a...

Page 267: ...e power supplies are not open Also check that the dc bias voltages at the Preamp are approximately the levels indicated on the schematic diagram in the service manual 1 COLD START and use the Force DAC test to check that the DAC system is controlling the CH1 GAIN CAL and CH2 GAIN CAL voltages correctly If not ok troubleshoot the DAC system Troubleshooting Procedure refer to test 8000 for more info...

Page 268: ...is functioning properly by switching the individual relays to the opposite latched position the audible click 2 Check that one audible click is heard when changing the VOLTS DIV setting between 50 mV and 100 mV 10X attenuation and between 500 mV and 1 V 100X attenuation Also check that one audible click is heard when changing the Vertical input coupling between DC and AC and when turning the fifty...

Page 269: ... the trigger to change state is assumed to be the upper hysteresis level in plus slope and the lower hysteresis level in negative slope IF A SELF DIAG OR EXTENDED DIAG TEST FAILS ONE CANNOT ASSUME THE HARDWARE IS DEFECTIVE UNLESS THE SAME TEST FAILS A SELF CAL The reason that SELF CAL must be run to assure a hardware failure is that SELF CAL computes new values of the constants for each test and u...

Page 270: ...ls are tested by test number 2510 of the Extended Diagnostics and if a PASS flag is present are assumed to be correct Otherwise refer to that diagnostics troubleshooting procedure for a failure of 2510 a EPTHO End Pretrigger Holdoff from Timebase Controller A 11U670 schematic diagram 8 via buffer U680E on the Timebase board EPTHO must be TTL high for a trigger to occur If that is not occurring see...

Page 271: ...een the obtained value and that measured in plus slope A ground signal is provided to the trigger from the CH 1 or CH 2 pickoff internal triggers or from an external source EXT1 EXT2 external triggers This is done by grounding the attenuator or by provid ing a short at the EXT TRIG inputs Testing Method Trigger Signal Offset 9100 TRIGGER OFFSET b If a channel PREAMP is suspected of having a defect...

Page 272: ...TINUOUS mode Troubleshooting Procedure Trigger Gain for the External Triggers is done in Extended Calibration of the TRIGGER circuits A ground signal and externally supplied dc voltages are used to get a four division level swing in both Ext Trig Preamp gain ranges If gain cannot be measured an error is flagged On the External Triggers a nominal gain value is stored if the test fails on the assump...

Page 273: ...ignal on U640 pin 2 is HI and that the RESET signal on U640 pin 37 is HI after the power on If not troubleshoot the Power Up schematic diagram 23 and Power Up Reset circuitry schematic diagram 1 If troubleshooting the Low Voltage Power Supply with the ac power connected use of an isolation transformer is necessary to prevent damage to equipment and possible personal injury due to electrical shock ...

Page 274: ...es the CLRB instruc tion to step through the entire 64 K of addresses System J LP A12U640 schematic diagram 1 Kernel Test Use the System J LP Kernel Test to verify the ability of the System J LP to function SWI2 and SWI3 are not used in the software instructions If executed they were not as valid instructions CODE Meaning Possible Cause 1 Abort code initialized to this value at Bad ROM RAM Firmwar...

Page 275: ...he Kernel mode momentarily short the pins of J129 together to reset the processor This forces ROMO Oto be switched in Set the test scope to 10 ms div to view one whole cycle of the AF period and set the Trigger Slope so that AF is shown LO during the first half of the display While AF is LO addresses from OOOOh to 7FFFh are being executed while HI addresses from 8000h to FFFFh are executed System ...

Page 276: ...bus to isolate the different parts of the processing system from each other BUS ISOLATE MODE 6 Check each of the System IlP data bus lines 07 00 on the outputs of Data Bus Buffer U650 Look for open bus lines no activity and hung bus lines stuck HI or LO If a fault is found it will be necessary to determine if it is on the System Bus or the Waveform IlP bus Use the BUS ISO LATE mode to assist in ch...

Page 277: ...ATA BUS ACTIVITY DURING WAVEFORM p ADDRESSES ADDRESSES ADDRESSES FFFFI I I 7FFFI BOOO I 10000 I SYSTEM P j t__ WF p I I l 1 LA I I I Ii HMMIO 6000 6FFF NVRAM 7000 77FF SYSRAM 7BOO 7FFF I II I II I I ROMO X t ROM1 I I BOOO cooo BFFF FFFF Maintenance 2430 Service Table 6 6 cont ...

Page 278: ...he Instruction Data Bus lines are pulled up or pulled down in a command that causes the U470 to address every instruction in its memory sequentially and continually Instruction address bus lines and data address bus lines can be checked for activity All the Instruction address bus lines and the data address bus lines with the exception of the top five WAA through WAE increment with the periods sho...

Page 279: ...in 3 schematic diagram 1 for two negative strobes about 10 5 J S apart View ing scope Sec Div at 2 J S trigger on negative slope of the signal If not present replace U830 Troubleshooting Procedure If SET TV is pressed and an error message of TV OPTION NOT INSTALLED OR FAULTY is displayed then the power on SELF TEST has detected a problem assuming the Video Option is installed During the power on S...

Page 280: ... signal is ok check U424C pin 6 for an inverted ATHO signal if not present replace U424 2 If signal is absent check the ATHO signal line at U424C pin 5 for HI to LO and LO to HI transi tions If not there troubleshoot the Holdoff circuit schematic diagram 13 as indicated in Table 6 6 in HOLDOFF PROBLEMS 1 Check the TVTG signal at U524B pin 8 If signal is present and no triggering is occurring troub...

Page 281: ...V of ground level If not trouble shoot U510 and associated circuitry 5 Set the Input Coupling to DC and check that the negative sync tip amplitude at U610 pin 9 is about 50 to 75 mV from back porch level to negative tip with about a 3 V dc offset If yes the AGC amplifier and Sync Tip Clamp circuit are ok Troubleshoot the Fixed Gain Amplifier the Sync Pickoff Comparator the Trigger Back Porch Clamp...

Page 282: ...is not selected and may be used to clamp a Channel 2 display if the selected trigger source signal is a composite sync or composite video Signal TV CLAMP PROBLEM 8 Check that the clock at pin 8 of U424D is stable and has a LO to HI transition If no transition replace U424 7 If not correct replace U530 6 Check Line Counter outputs at pin 27 and pin 3 for a LO to HI transition during the vertical sy...

Page 283: ... of U710D for CLAMP ON and CLAMP OFF If not troubleshoot 0710 U710A and associated components 10 Switch CH 2 INVERT ON check pin 6 of U520 again as in step 9 If not correct troubleshoot U514 U410B U410E and the CH 2 INV signal should be HI with CH 2 INVERT ON 9 Check that pin 6 of U520 is approximately 0 V with the TV CLAMP OFF and approximately 130 mV with the TV CLAMP ON If not switching correct...

Page 284: ...INARY Data Target REF 1 Data Source CH 1 FASTXMIT OFF CURVE ONLY OFF GPIB SETUP OUTPUT CURSOR DELA Y Knob CURSOR POSITION CURSOR FUNCTION All off VOLTS UNITS VOLTS TIME UNITS SEC SLOPE UNITS VOLTS SEC CURSOR Mode ATIACH CURSORS TO CH 1 X Axis Cursor Position 3 divisions Y Axis Cursor Position 3 divisions TIME Cursor Position 4 divisions VOLTS Ref Value 1 0 V TIME Ref Value 1 0 SEC SLOPE Ref Value ...

Page 285: ...pe is ordered with Option 1R it is shipped in a configuration that permits easy installation into a 19 inch wide equipment rack An optional rackmounting kit may be ordered to convert the standard 2430 to a rackmounted instrument Installation instructions for rackmounting are provided in the docu mentation supplied with the rackmounting kit and the 1R Option OPTION 1R RACKMOUNTED 2430 161 0154 00 O...

Page 286: ...andard accessories are provided with each instrument STANDARD ACCESSORIES The Word Recognizer Probe optional accessory is used to obtain triggering on a selected parallel TTL data word A word length of 16 bits plus a 17th qualifier bit is recog nizable with each bit selectable as 0 1 or X don t care Recognition may be either synchronous with an external clock signal rising or falling edge or async...

Page 287: ...it number Read Resistor 1234of Subassembly 2 of Assembly 23 Circuit number A23A2R1234 A23 A2 R1234 Assembly Subassembly L_number component number Example b Read ReSistor1234 of Assembly 23 Example a component number A23R1234 A23 R1234 A numbering method has been used to identify assemblies subassemblies and parts Examples of this numbering method and typical expansions are illustrated by the follo...

Page 288: ... CA 95050 SUB OF BOURNSINC 07263 FAIRCHILD SEMICDNDUCTOR CORP 10400 RIDGEVIEW CT CUPERTINO CA 95014 NORTHAMERICAN SALES SUB OF SCHLUMBERGER LTD MS 118 07716 TRW INC 2850 MT PLEASANT AVE BURLINGTON IA 526Dl TRW IRC FIXED RESISTORS BURLINGTON 09019 GENERAL ELECTRIC CO ELECTRON ICS PARK SYRACUSENY 13221 PDWERELECTRONICS SYSTEMSDEPT BLDG 7 09922 BURNDYCORP RICHARDS AVE NORWALKCT 06852 11236 CTS CORP 4...

Page 289: ...A CORP 927 ESTATE PKY SCHAlMlURG I L 60195 4526 56289 SPRAGUEELECTRIC CO 92 HAYDENAVE LEXINGTON MA 02173 7929 nRLD HEADQUARTERS 57668 ROHfJCORP 16931 MILLIKEN AVE IRVINE CA 92713 58224 XENELL CORP 11 DUNBARTONRD CHERRYHILL NJ 08003 2107 PO BOX 4401 59660 TUSONIX INC 7741 N BUSINESS PARK DR TUCSONAZ 8574tr7144 PO BOX 37144 59821 MEPCO CENTRALAB 7158 MERCHANTAVE EL PASO TX 79915 1207 A NORTHAMERICAN...

Page 290: ... TOPAZ SEMICONDUCTOR 1971 N CAPITOL AVE SAN JOSE CA 95132 3799 SUB OF HYTEK MICROSYSTEMSINC TK1016 TOSHIBA AMERICA INC 2692 DGI AVE TUSTIN CA 92680 ELECTRON IC C 1PONENTSDI V BUSINESS SECTOR TK1066 STAR MICRONICS TKl345 ZMANAND ASSOCIATES 7633 S 180TH KENT WA 98032 TK1450 TOKYOCDSMOSELECTRIC CO LTD 2 268 SOBUDAI ZJWIA KANAGAWA 228 JAPAN TK1544 COMPUTER CONNECTIOOS 2427 PRATI AVE K YWARD CA 94544 T...

Page 291: ... 670 8165 06 Al2 670 8165 08 B014013 CIRCUIT BD ASSY PROCESSOR OPT 05 80009 670 8165 08 OPTION 05 ONLY ooES NOT INCLUDEFIRMWARE A12 670 B165 o3 B010100 B010104 CIRCUIT BD ASSY PROCESSOR STD CIIL BOOO9 670 8165 03 A12 670 B165 o5 B010105 B010139 CIRCUIT BD ASSY PROCESSOR 80009 670 8165 05 A12 670 B165 07 B010140 CIRCUIT BD ASSY PROCESSOR 80009 670 8165 07 243OM ONLY DOESNOT INCLUDEFIRMWARE A13 670 ...

Page 292: ...al Asselbly No Mfr Carpc 1ent No Part No EffectiW Dsccnt NiIIre Oeseript ion CaE Mfr Part No 2430 OOLY A18 670 8795 01 B010100 B019999 CIRCUIT BO ASSY SCALE I LLLM 80009 670 8795 01 243 1 ONLY Replaceable Electrical Parts 2430 Service ...

Page 293: ... ATIENUATOR VAR PROGIW 1ABLE 1X 100X 80009 119 2342 03 243OM ONLY AlOCI01 281 0909 00 CAP FXO CERDI 0 022UF 20 10 50V 54583 MAl2X7R1H223M T AI0Cl02 281 0814 00 CAP FXO CER DI 100 PF lO 10 100V 04222 MA10IA101KAA AI0CllO 290 0943 00 6010100 6013921 CAP FXO ELCTLT 47UF 50 20 10 25V 55680 ULB1E470TAAANA A10CllO 290 0943 02 6013922 CAP FXO ELCTL T 47UF 20 10 25V 55680 UVX1E47DMAA1 TO 2430 ONLY AI0CllO...

Page 294: ... B010139 CAP FXD ELCTLT 47UF 50 20 10 25V 55680 ULB1E470TAAANA AlOC190 290 0943 02 BOI0140 CAP FXD ELCTLT 47UF 20 10 25V 55680 UVXIE47 JW lTD 243OM ONLY AlOC20l 281 0909 00 CAP FXD CER D1 O 022UF 20 50V 54583 MA12X7R1H223M T A10C202 290 0943 00 B010100 B013921 CAP FXD ELCTLT 47UF 50 2ox 25V 55680 ULB1E470TAAANA AlOC202 290 0943 02 B013922 CAP FXD ELCTLT 47UF 20 25V 55680 UVX1E470MAA1 TD 2430 ONLY ...

Page 295: ...20 10 25V 55680 ULBIE470TAAANA A1OC263 290 0943 02 B010140 CAP FXD ElCTLT 47UF 20 10 25V 55680 UVXIE47OW A1TO 243OM ONLy AI0C264 283 0203 00 CAP FXD CER OJ 0 47UF 20 1o 50V 04222 SR305SC474MAA A10C265 290 0943 00 B010100 B013921 CAP FXD ElCTlT 47UF 50 20 10 25V 55680 ULB1E470TAAANA A10C265 290 0943 02 B013922 CAP FXD ELCTLT 47UF 20 10 25V 55680 UVX1E47DMAAlTD 2430 ONLY AI0C265 290 0943 00 BOI0100 ...

Page 296: ...XO CEROI O 022UF 20 10 50V 54583 MAI2X7RIH223M T A10C441 281 0909 00 CAP FXO CER 0I O 022UF 20 10 50V 54583 MAI2X7RIH223M T A10C450 283 0203 02 B012727 CAP FXO CER OI 0 47UF 20 Io 50V 05397 C330C474M5U5CA A10C460 283 0203 02 B012727 CAP FXO CER DI 0 47UF 20 Io 50V 05397 C330C474M5USCA A10C464 283 0203 00 CAP FXD CER DI 0 47UF 20 Io 50V 04222 SR305SC4 74MAA A10C465 290 0943 00 B010100 B013921 CAP F...

Page 297: ...MA12X7RlH223M T A1OC550 281 0909 00 CAP FXD CER Dl O 022UF 20 50V 54583 MAl2X7R1H223M T A1OC560 281 0763 00 BOI0350 CAP FXD CER DJ 47PF 10 10 l00V 04222 MAIO lA4 70i AA AI0C561 285 1343 00 BOlOI00 B010126 CAP FXD PLASTIC 330PF 100V 5 TK1573 FKP2 330 5 100V AIOC561 285 1362 00 B010127 CAP FXD PLASTIC 560PF 2 5 100V TKl573 FKP2 560PF 2 5 10 A10C562 281 0909 00 CAP FXD CER OJ O 022UF 20 50V 54583 MA1...

Page 298: ...01 0 47UF 20 I 50V 04222 SR30SSC474MAA A10C660 285 1301 01 6014161 CAP FXD MTLZD 0 47UF rox SOV 55112 1850 47K50A66 2430 ONLY A10C66o 283 0203 00 6010100 6019999 CAP FXO CER DJ 0 47UF 20 lo 50V 04222 SR305SC474MAA 243OM ONLY A10C661 281 0909 00 CAP FXD CER 01 0 022UF 20 I 50V 54583 MA12X7R1H223M T A10C662 281 0909 00 CAP FXD CER OJ 0 022UF 20 I 50V 54583 MA12X7R1H223M T A10C663 285 1343 00 6010100...

Page 299: ... 00 6010100 6019999 CAP FXD CER D1 O 47UF 20 10 50V 04222 SR305SC474MAA 243OM ONLY A10C748 283 0203 00 CAP FXD CER Dl 0 47UF 20 Io 50V 04222 SR305SC474MAA A10C751 281 0814 00 CAP FXD CER D1 100 PF lO Io 100V 04222 MA101A101KAA A10C752 283 0203 00 6010100 6014160 CAP FXD CER 01 0 47UF 20 Io 50V 04222 SR305SC474MAA A10C752 285 1301 01 6014161 CAP FXD MTLlO 0 47UF 10 10 50V 55112 1850 47K50ABB 2430 O...

Page 300: ...LY A10C825 283 0203 00 B010100 B014160 CAP FXD CER D1 0 47UF 20 50V 04222 SR305SC474MAA A10C825 285 1301 01 B014161 CAP FXD MTLZD 0 47UF 10 10 50V 55112 1850 47K50ABB 2430 ONLY A10C825 283 0203 00 B010100 B019999 CAP FXD CER OI 0 47UF 20 50V 04222 SR305SC474MAA 243OM ONLY A10C826 281 0909 00 CAP FXD CER D1 0 022UF 20 1o 50V 54583 MA12X7R1H223M T A10C830 281 0909 00 CAP FXD CER Dl 0 022UF 20 Io 50V...

Page 301: ... 150MA 30V 00 35 03508 DA2527 lN4152 AI0CR292 152 0141 02 B010100 BOI0349 SEMICONDDVC DJ SW SI 30V 150MA 30V 00 35 03508 DA2527 IN4152 A10CR292 152 0322 00 8010350 8013917 SEMICOND DVC DJ SCHOTIKY SJ 15V 1 2PF oo 35 50434 5082 2672 AI0CR292 152 0951 00 B013918 SEMICONDDVC0I SCHOTIKY SI 60V 2 25PF 80009 152 0951 00 AI0CR310 152 0323 01 SEMICOND DVC DJ SW SJ 35V O IA 00 35 14552 MT5127 AI0CR311 152 ...

Page 302: ... 0608 00 TERMINAL PIN 0 365 LX 0 025 BRZ GLD PL 22526 48283 036 QUANTITYOF 6 AI0JI06 131 0608 00 TERMINAL PIN 0 365 LX 0 025 BRZ GLD PL 22526 48283 036 QUANTITYOF 2 A10J107 131 0608 00 TERMINAL PIN 0 365 LX 0 025 BRZ GLD PL 22526 48283 036 QUANTITYOF 4 AI0JI08 131 3152 00 CONN RCPT ELEC HEADER 2X 8 0 1 SPACING 22526 66506 043 AI0J111 131 3181 00 CONN RCPT ELEC HEADER RTANG 2X 20 0 1 CTR 22526 7586...

Page 303: ...151 0367 00 TRANSISTOR NPN SI X 55 04713 SPS 8811 A10Q291 151 0367 00 TRANSISTOR NPN SI X 55 04713 SPS 8811 A10Q372 151 0188 00 TRANSISTOR PNP SI To 92 SOO09 151 0188 00 A10Q375 151 0188 00 TRANSISTOR PNP SI TO 92 S0009 151 0188 00 A10Q3S0 lSl 018S 00 TRANSISTOR PNP SI TO 92 80009 151 0188 00 A10Q390 151 0188 00 TRANSISTOR PNP SI TO 92 80009 151 018S 00 A10Q391 151 018S 00 TRANSISTOR PNP SI TO 92 ...

Page 304: ...25101 TC TO 07716 CEAD71500F A1OR134 315 0471 00 RES FXD FILM 470 OHM 5 O 2SW 57668 NTR25J E470E AIOR135 321 0287 00 RES FXD FILM 9 53K 0tt 1 l O 125W TC TO 19701 5033ED9K53oF AI0R136 315 0471 00 RES FXD FILM 470 0tt 1 5 O 25W 57668 NTR25J E470E A10R140 321 0193 00 RES FXD FILM 1K 00 1 0 125101 TC TO 19701 5033ED1KooF AI0R141 321 0063 00 RES FXD FILM 44 2 Ott 1 0 5 0 125101 TC TO 91637 CMF55116G44...

Page 305: ...l SOI 0 25 o1 19701 5043CX18ROOJ A10R250 315 0470 00 RES FXD FILM 470ff l SOI 0 25W 57668 NTR25J E47EO A10R251 315 0392 00 B010100 B011495 RES FXD FILM 3 9K OHM 5 0 25W 57668 NTR25J E03K9 A10R251 315 0152 00 6011496 RES FXD FILM 1 5K 0ft1 5 O 25 01 57668 NTR25J E01KS A10R252 315 0750 00 RES FXD FILM 750ff l SOIo 0 25 o1 57668 NTR25J E75EO A10R253 315 0750 00 RES FXD FILM 750ff l SOIo 0 25 ol 57668...

Page 306: ...FXD FILM 390Ii i 5 Io O 25W 57668 NTR25 1 E39EO A10R368 315 0560 00 RES FXD FI LM 56 Oft1 5 10 O 25W 57668 NTR25 1 E56EO AIOR370 307 0489 00 RES NTWK FXD FI 7 100 0ft1 20 1o l OW 11236 750 81 R100 AIOR371 307 0546 00 RES NTWK FXD FI 5 75ort1 5 0 15 14 11236 750 77D 61 R75 A10R372 315 0471 00 8010100 8014160 RES FXD FILM 470 Dtf 1 5 O 25W 57668 NTR25 1 E470E A10R372 315 0391 00 8014161 RES FXD FILM...

Page 307: ...W 57668 NTR25JEOIKO A10R456 315 0102 00 RES FXD FILM lK 0H 1 5 10 0 2511 57668 NTR25JEOIKO A10R457 321 0169 00 6012727 RES FXD FILM 562 01 U O 125W TC TO 07716 CEAD562ROF A10R458 311 2229 00 6012727 RES VAR NONWW TRMR 2SD 0Ii 1 20 O 511 LINEAR TK1450 GF06UT 250 A10R459 321 0210 00 B012727 RES FXD FILM 1 SDK 0IiU 0 125W TC TO 19701 5033EDIK50F A10R460 321 0210 00 B012727 RES FXD FI LM 1 SDK OIi 1 I...

Page 308: ...M 10K Oi t1 5 O 25W 19701 5043CX10KOOJ AI0R530 315 0101 00 RES FXD FILM 100 0I 1 5 O 25W 57668 NTR25J E lODE A10R531 315 0103 00 8010100 8014160 RES FXD FILM 10K 0i t1 5 O 25W 19701 5043CX10KOOJ AI0R531 315 0100 00 8014161 RES FXD FI LM 10 OHM 5 10 O 25W 19701 5043CXI0RROOJ 2430 ONLY AI0R531 315 0103 00 8010100 8019999 RES FXD FILM 10K 0t l 5 0 25W 19701 5043CX10KOOJ 243OM ONLY A10R532 315 0151 00...

Page 309: ...CXI0KOOJ A10R588 315 0101 00 RES FXD FILM 100 0ff 1 5 O 2511 57668 NTR25J E lODE A10R590 321 0152 00 RES FXD FILM 374 01t1 1 0 12511 TC TO 07716 CEAD374ROF A10R592 315 0152 00 RES FXD FILM 1 5K 01t1 5 0 2514 57668 NTR25J E01K5 A10R594 321 0152 00 RES FXO FILM 374 0It1 l O 125W TC TO 07716 CEA0374ROF A10R595 321 0289 00 RES FXD FILM 10 0K 0It1 l O 125W TC TO 19701 5033E010KOF A10R596 321 0289 00 RE...

Page 310: ...19701 5033EDI0KOF AI0R654 315 0102 00 RES FXD FILM lK Ottl 5 Io O 25W 57668 NTR25JEOIKO AIOR655 321 0332 07 RES FXD FILM 28 OK Oft1 0 1 0 1251 TC T9 19701 5033RE28KOOB AIOR656 321 0926 07 RES FXD FILM 4K Off l O I O 12 TC T9 19701 5033RE4KooB AI0R660 315 0102 00 RES FXD FILM IK OHM 5 Io O 2SW 57668 NTR25JEO lKO AIOR661 321 0289 00 RES FXD FILM lO OK Oft1 I 0 1251 TC TO 19701 5033ED10KOF AI0R662 32...

Page 311: ... 1 0 125W TC TO 07716 CEAD1l501F A10R734 321 0289 00 RES FXD FILM 10 DK 01 1 1 0 12511 TC TO 19701 5033ED10KOF A10R735 321 0260 00 RES FXD FILM 4 99K Oftl 1 0 12511 TC TO 19701 5033ED4K990F A10R736 321 0289 00 RES FXD FILM 10 0K Oftl 1 0 12511 TC TO 19701 5033 ED1OKOF A10R740 321 0289 00 RES FXD FILM 10 0K Oftl 1 0 12511 TC TO 19701 5033ED10KOF AI0R741 321 0260 00 RES FXD FILM 4 99K 01 1 1 0 12511...

Page 312: ... TC TO 07716 CEAD665ROF A10R782 321 0129 00 RES FXD FILM 215 OHM 1 0 125W TC TO 07716 CEAD215ROF A10R783 315 0202 00 RES FXD FILM 2K OHM S O 2SW 57668 NTR25J E 2K A10R784 315 0100 00 B010322 RES FXD FILM 10 Qtt1 5 0 2SW 19701 5043CXI0RROOJ A10R785 315 0331 00 RES FXD FlLM 330 OHM 5 O 25W 57668 NTR25J E330E AI0R786 315 0202 00 RES FXD FILM 2K OHM S 0 25W 57668 NTR25J E 2K AI0R788 315 0391 00 RES FX...

Page 313: ...EST SELECTABLE 2430 A10R867 321 0222 00 B010100 B010126 RES FXD FILM 2 OOKOrM 1 0 12SW TC TO 19701 S033ED2KOOF AI0R867 321 0210 00 8010127 B019999 RES FXD FILM 1 SDK 0ff 1 1 0 125W TC TO 19701 5033ED1KSOF 243OM ONLY AI0R870 321 0254 00 RES FXD FI LM 4 32K OrM 1 0 12SW TC TO 07716 CEAD43200F A10R871 321 0176 00 RES FXD FILM 665 OHM 1 0 125W TC TO 07716 CEAD665ROF A10R872 321 0129 00 RES FXD FILM 21...

Page 314: ...5 00 B010100 BOI0808 RES THERMAL 500 OIi l IO I NTC 15454 lDB5D1K 220 EC AI0S600 260 1421 00 SWITCH PUSH 1BTN 2 POLE INSTRtJ tENTID 59821 ORDERBY DESCR AI0S800 260 1421 00 SWITCH PUSH 1BTN 2 POLE INSTRUMENT 10 59821 ORDERBY DESCR A10S801 260 1421 00 SWITCH PUSH 1 BTN 2 POLE INSTRUMENT 10 59821 ORDERBY DESCR A10T370 120 0478 00 XFMl TOROID TK1345 ORDERBY DESCR A10T371 120 0478 00 XFMR TOROID TK1345...

Page 315: ...1295 LM311JG4 AI0U510 156 1245 00 MICROCKT L1NEAR 7 XSTR NPN SI HV HI CRNT 01295 ULN2003AN P3 AI0U511 156 0651 02 MICROCKT OGTL 8 BIT PRL OUT SER SHF RGTR 01295 SN74LSl64NP3 A10U520 156 1245 00 MICROCKT L1NEAR 7 XSTR NPN SI HV HI CRNT 01295 ULN2003AN P3 A10U530 156 0651 02 MICROCKT DGTL 8 BIT PRL OUT SER SHF RGTR 01295 SN74LSl64NP3 A10U540 156 1200 01 MICROCKT LlNEAR OPNL AMPL QUAOBIFET 80009 156 ...

Page 316: ...0 AI0VR390 152 0662 00 SEMICONDDVe DI ZEN SI 5V 1 4O M DO 7 04713 SZG195RL A10VR391 152 0662 00 SEMICONDDVC Dl ZEN SI 5V 1 40DMW DO 7 04713 SZG195RL A10VR420 152 0166 00 SEMICONDDVe 01 Wl SI 6 2V 5 40OM 00 7 04713 SZ11738RL A10VR492 152 0662 00 SEMICONDDVC 01 ZEN SI 5V 1 40DMW 00 7 04713 SZG195RL AI0VR493 152 0662 00 SEMICONDDVC 01 ZEN SI 5V 1 400MW 00 7 04713 SZG195RL A10WllO 131 0566 00 BUS COND...

Page 317: ...T AllC281 281 0762 00 CAP FXD CERDr 27PF 20 I lOOV 04222 MAl0lA270MAA AllC282 290 0808 00 CAP FXD ELCTLT 2 7UF 10 1 20V 05397 T322B275K020AS AllC284 290 0808 00 CAP FXD ELCTLT 2 7UF 10 1 20V 05397 T322B275K020AS AllC290 281 0909 00 CAP FXD CER DJ O 022UF 20 1 50V 54583 MAI2X7RIH223M T AllC291 281 0909 00 CAP FXD CERDr O 022UF 20 1 50V 54583 MA12X7RIH223M T AllC292 281 0909 00 CAP FXD CER DI 0 022U...

Page 318: ...P FXO CER 01 O 022UF 20 1 SOV 54583 MA12X7R1H223M T A11C620 281 0909 00 CAP FXD CER 01 O 022UF 20 10 50V 54583 MAI2X7R1H223M T AllC621 281 0909 00 CAP FXD CER 01 0 022UF 20 50V 54583 MA12X7R1H223M T AllC622 281 0909 00 CAP FXO CER 01 O 022UF 20 10 SOV 54583 MA12X7R1 H223M T A11C623 281 0909 00 CAP FXD CER 01 O 022UF 20 10 SOV 54583 MA12X7R1H223M T AllC630 281 0909 00 CAP FXO CER D1 O 022UF 20 10 5...

Page 319: ...SI 30Y 150f A 30V 00 35 03508 DA2527 IN4152 AllCR281 152 0141 02 SEMICOND DYC 01 SW 51 30V 150f A 30V 00 35 03508 DA2527 IN4152 AllCR283 152 0141 02 SEMICOND DVC DI SW SI 30V 150f A 30V 00 35 03508 DA2527 lN4152 AllCR284 152 0141 02 SEMICOND DVC DJ SW SI 30V 150f A 30V 00 35 03508 DA2527 lN4152 AllJI00 131 3182 00 CONN RCPT ELEC fi R RTANG 2 X 25 0 1 CENTER 22526 75861 008 AllJ1l7 131 0589 00 TERM...

Page 320: ...OHM 5 0 25W S7668 NTR25J E lODE A11R330 315 0103 00 RES FXD FILM 10K OHM 5 O 2SW 19701 5043CX10KDOJ AllR361 321 016S 00 RES FXO FILM Sl1 QHM 1 O 125W TC TO 07716 CEADSllROF AllR352 321 0193 00 RES FXD FILM 1K OHM 1 0 12SW TC TO 19701 S033ED1KOOF A11R363 321 0193 00 RES FXO FI LM 1K OHM 1 0 12SW TC TO 19701 S033ED1KOOF A11R364 321 0816 00 RES FXD FI LM SK Off l 1 0 125W TC TO 24546 NAS50S001F A11R3...

Page 321: ...65ROF A11R603 321 0129 00 RES FXD FI LM 215 0Ii l l 0 125W TC TO 07716 CEAD215ROF A11R605 321 0097 DO RES FXD FILM 100 Dftl 1 0 12SW TC TO 91637 CMF55116G10OROF A11R607 321 0193 00 RES FXD FILM lK 01 1 1 O 125W TC TO 19701 5033ED1KOOF A11R609 311 2231 00 B010100 B010699 RES VAR NON WvI TRMR 1K OHM 20 1o 0 5WLINEAR TK1450 GF06lJT 1K A11R610 315 0103 00 RES FXD FILM 10K OHM 5 O 25W 19701 5043CX1OKOO...

Page 322: ...191NB A1lU22l 156 0530 02 MICROCKT DGTL QUAD 2 INP MUX SCRN 01295 SN74LS157NP3 AllU222 156 0422 02 MICROCKT DGTL UP DOt NSYN BINARY CNTR SCRN 18324 N74LS191NB AllU223 156 0481 02 MICROCKT DGTL TRIPLE 3 INP GATE SCRN 01295 SN74LSllNP3 AllU230 156 0994 02 MICROCKT DGTL 8 INPUT DATA SEL MUX SCRN 01295 SN74LS151NP3 AllU231 156 0844 02 MICROCKT DGTL SYN 4 BIT CNTR SCRN 01295 SN74LS161A NP3 AllU232 160 ...

Page 323: ...S112JP4 AllU530 156 0913 02 MICROCKf DGTL OCTAL D FF W ENABLE SCRN 01295 SN74LS377NP3 AllU531 156 1277 00 MICROCKf DGTL LSTTL 3 STATE OCTAL BFR SCRN 27014 OM81LS95ANA AllU532 156 1277 00 MICROCKf DGTL LSTTL 3 STATE OCTAL BFR SCRN 27014 DM81LS95ANA AllU540 156 0913 02 MICROCKf DGTL OCTAL D FF WlENABLE SCRN 01295 SN74LS377NP3 A11U541 156 0865 02 MICROCKf DGTL OCTAL D FF W CLEAR SCRN 01295 SN74LS273N...

Page 324: ...4 BIT M4GNITUDECMPRTR SCRN 01295 SN74LSB5NP3 AllU7BO 156 2B04 00 B011146 MICROCKT LI OP AMP WIDEBAND HI SLEWRATE BOOO9 156 2804 00 A11U830 156 1961 00 MICROCKT DGTL BIDIRECTIONALUNIV SHF RGTR 07263 74Fl94P AllU831 156 1961 00 MICROCKT OGTL BIDIRECTIONALUNIV SHF RGTR 07263 74F194P AllU832 156 1722 00 MICROCKT OGTL HEX INVERTER 04713 MC74F04ND AllU880 156 1149 01 BOl1146 MICROCKT L1NEAR OPERATION AM...

Page 325: ...UF 20 10 100V 14752 C2598 A12C217 281 0773 00 CAP FXo CER 01 O OlUF lO Io IOOV 04222 MA20lC103KAA OPTION 05 OOLY A12C218 281 0775 00 CAP FXD CER 0J 0 1UF 20 10 50V 04222 MA205E104MAA OPTION 05 ONLY A12C238 281 0909 00 CAP FXD CER DI 0 022UF 20 Io 50V 54583 MAl2X7RIH223M T A12C308 281 0785 00 CAP FXD CER DI 68PF l Y HJOV 04222 MAIOIA68OKAA OPTION 05 ONLY A12C322 290 0183 00 CAP FXD ELCTLT lUF H Io ...

Page 326: ...X7RIH223M T A12C550 281 0909 00 CAP FXD CER D1 0 022UF 20 1o SOY 54583 MAI2X7RIH223M T A12C572 281 0909 00 CAP FXD CER DI 0 022UF 20 Io SOY 54583 MAI2X7RIH223M T A12C580 281 0909 00 CAP FXD CER 01 0 022UF 20 Io SOV 54583 MA12X7RIH223M T A12C582 290 0943 00 BOIOIOO B013921 CAP FXD ELCTLT 47UF 50 20 Io 25V 55680 ULB1E470TAAANA A12C582 290 0943 02 B013922 CAP FXD ELCTLT 47UF 20 10 25V 55680 UVXlE470M...

Page 327: ...X1E47 I AlTD 243OM ONLY A12C884 290 0943 00 6010100 6013921 CAP FXO ELCTLT 47UF 50 20 10 25V 55680 UL61E470TAAANA A12C884 290 0943 02 B013922 CAP FXO ELCTLT 47UF 20 10 25V 55680 UVXIE470MAAITO 2430 ONLY A12C884 290 0943 00 B010100 B010139 CAP FXD ELCTLT 47UF 50 20 10 25V 55680 UL61E470TAAANA A12C884 290 0943 02 B010140 CAP FXO ELCTLT 47UF 20 10 25V 55680 UVXIE470MAAlTD 243OM ONLY A12C886 290 0943 ...

Page 328: ...2CR526 152 0460 00 SEMICONDDVC DI FE S1 25V IMA TO 7 04713 SCL072 OPTION 05 ONLY A12CR594 152 0141 02 SEMICONDOVC OJ SW SI 30V 150MA 30V DO 35 03508 DA2527 lN4152 A12CR606 152 0141 02 SEMICONDDVC 01 SW SI 30V 15DMA 30V DO 35 03508 DA2527 lN4152 OPTION 05 ONLy A12CR612 152 0141 02 SEMICONOOVC 01 SW SI 30V 150MA 30V 00 35 03508 0A2527 IN4152 OPTION 05 ONLY A12CR620 152 0460 00 SEMICONDOVC 01 FE SI 2...

Page 329: ...GLD PL 22526 48283 036 Ql II NTITY OF 2 A12J207 131 0508 00 TE INAL PIN 0 365 LX 0 025 BRZ GLO PL 22526 48283 036 Ql II NTITY OF 4 A12J790 131 0608 00 B010100 B012055 TERMINAL PIN 0 355 LX 0 02S BRZ GLD PL 22S26 48283 035 Ql II NTITY OF 4 A12J790 131 0608 00 B010100 B012303 TE INAL PIN 0 355 LX 0 025 BRZ GLO PL 22525 48283 035 Ql II NTITY OF 4 OPTION 05 ONLY A12K302 148 0076 00 RLY REED FRMA 250MA...

Page 330: ... 0rt1 1 0 125W Te TO 19701 5033ED20KOOF A12R140 31S 0241 00 RES FXD FILM 240 OHM 5 O 2SW 19701 S043CX24OROJ A12R142 31S 0241 00 RES FXD FILM 240 0rt1 S O 2SW 19701 S043CX24OROJ A12R208 31S 0102 00 RES FXD FILM IK OHM S 1o 0 25W S7668 NTR25JE01KO OPTION OS ONLY A12R210 31S 0123 00 RES FXD FILM 12K Oft l S 0 2SW 57668 NTR25J E12KO OPTION 05 ONLY A12R212 31S 0102 00 RES FXD FILM 1K OHM 5 Io O 25W 576...

Page 331: ... FXD FILM IK Dt 1 SIo O ZSW 57668 NTR25 JE01KO A12R376 315 0201 00 RES FXD FILM 200 OI 1 SOIo 0 2SW 57668 NTR25J EZOOE A12R378 315 0103 00 RES FXD FILM 10K Ott1 5 0 25W 19701 5043CXI0KOOJ A12R400 315 0102 00 RES FXD FILM 1K 0t 1 SIo 0 2SW 57668 NTR25JEOIKO A12R401 307 0104 00 RES FXD CMPSN 3 3 01 1 5 O 251 011Z1 CB33G5 OPTION 05 OOLY A12R402 315 0223 00 RES FXD FILM 22K Oft1 5 0 251 19701 5043CX22...

Page 332: ...HM 5 O 2SW 57668 NTR25J E04K3 OPTION 05 ONLY A12R512 315 0153 00 RES FXD FILM 15K OHM 5 0 25W 19701 5043CX15KOOJ OPTION 05 ONLY A12R524 315 0511 00 RES FXD FILM 510 OHM 5 0 25W 19701 S043CX51ORDJ OPTION 05 OOLY A12RS29 315 0101 00 RES FXD FILM I00 OHM 5 0 25W 57668 NTR25J E 100E OPTION 05 ONLY A12R572 315 0103 00 RES FXD FILM I0K OHM 5 O 25W 19701 5043CX1OKOOJ A12R580 315 0241 00 RES FXD FILM 240 ...

Page 333: ...ON 05 ONLY A12R716 315 0101 00 B010100 B010399 RES FXD FILM 100 OHM 5 O 25W 57668 NTR25J E lODE A12R716 315 0620 00 B010400 RES FXD FILM 62 Off 1 5 10 0 2514 19701 5043CX63ROOJ A12R717 315 0181 00 RES FXD FILM 180 OHM 5 0 2514 57668 NTR25J El80E A12R718 315 0470 00 RES FXD FILM 47 Oftl 5 0 2514 57668 NTR25J E47EO A12R719 315 0100 00 RES FXD FILM 10 01 1 5 0 2514 19701 5043CX10RROOJ OPTION 05 ONLY ...

Page 334: ...Y A12R957 315 0103 00 B012305 RES FXD FILM 10K OHM 5 O 25W 19701 5043CX10KOOJ OPTION 05 ONLY A12TP332 131 0608 00 TERMINAL PIN 0 365 LX 0 025 BRZ GLD PL 22526 48283 036 A12TP370 131 0608 00 TERMINAL PIN 0 365 LX 0 025 BRZ GLD PL 22526 48283 036 A12TP371 131 0608 00 TERMINAL PIN 0 365 LX 0 025 BRZ GLD PL 22526 48283 036 A12TP372 131 0608 00 TERMINAL PIN 0 365 LX 0 025 BRZ GLD PL 22526 48283 036 A12...

Page 335: ...5 ONLY A12U490 160 4174 00 B010100 B020099 MICROCKT DGTL 32768 X 8 PROM PRGM 80009 160 4174 00 243OM ONLY NOT PART OF CIRCUIT BOARD A12U504 156 0912 01 MICROCKT lINEAR OPNL AMPL SCREENED 02735 CA3080EX 98 OPTION 05 ONLY A12U510 156 0912 01 MICROCKT L1NEAR OPNLAMPL SCREENED 02735 CA3080EX 98 OPTION 05 OOLY A12U514 156 0912 01 MICROCKT LI NEAR OPNL AMPL SCREENED 02735 CA3080EX 98 OPTION 05 OOL Y A12...

Page 336: ...0435 MICROCKT DGTL l6384 X 8 EPROM PRGM 80009 160 2552 00 A12U682 160 2552 01 8010436 8011409 MICROCKT DGTL Nt llS 32768 X 8 EPROM PRGM 80009 160 2552 01 A12U682 160 2552 02 B011410 8014160 MICROCKT DGTL Nt llS 32768 X 8 EPROM PRGM 80009 160 2552 02 A12U682 160 2552 03 B014161 8014161 MICROCKT DGTL Nt llS 32768 X 8 EPROM PRGM 80009 160 2552 03 A12U682 160 2552 05 8014162 MICROCKT DGTL Nt llS 32768...

Page 337: ...EX INVERTER BURN IN 18324 N74S04 NB OR FB A12U870 156 0180 04 MICROCKT DGTL QUAD2 INP NANDGATE 18324 N74Soo NB OR FB A12U874 156 0382 02 MICROCKT DGTl QUI O 2 INP NANDGATE BURN 18324 N74lS00NB A12U880 156 0480 02 MICROCKT DGTL QUClO 2 NP GATE 5CRN 01295 SN74LS08NP3 A12U884 156 0469 02 MICROCKT DGTL 3 8 LI NE OCDR SCRN 01295 SN74LS138NP3 A12U890 156 0693 02 MICROCKT DGTL OUCIL2 TO 4 LINE OCOR OEMUX...

Page 338: ...7R1H223M T A13C861 281 0909 00 CAP FXD CER DI 0 022UF 20 1o 50V 54583 MA12X7R1H223M T A13C864 281 0909 00 CAP FXD CER DI O 022UF 20 10 50V 54583 MA12X7R1H223M T A13C871 281 0909 00 CAP FXD CER DJ O 022UF 20 10 50V 54583 MA12X7R1H223M T A13C872 281 0909 00 CAP FXD CER D1 O 022UF 20 10 50V 54583 MA12X7R1H223M T A13C873 281 0909 00 CAP FXD CER DI 0 022UF 20 1o 50V 54583 MA12X7R1H223M T A13C881 290 01...

Page 339: ...43CXI0KOOJ A13R811 315 0103 00 RES FXD FILM lOK OH l 5 0 25W 19701 5043CX10KOOJ A13R812 315 0103 00 RES FXD FILM 10K OH l 5 0 25W 19701 5043CX1OKOOJ A13R813 315 0103 00 RES FXD FlLM 10K OHM 5 0 25W 19701 5043CX10KOOJ A13R814 315 0103 00 RES FXD FILM I0K OHM 5 0 25W 19701 5043CXI0KOOJ A13R815 315 0101 00 RES FXD FILM 100 OHM 5 O 25W 57668 NTR25J E lODE A13R831 321 0657 07 RES FXO FILM 60 OHM O I 0 ...

Page 340: ... 27014 DM81LS95ANA A13U761 156 1277 00 MICROCKT QGTL LSTTL 3 STATEOCTALBFR SCRN 27014 DM81LS95ANA A13U762 156 1221 00 MICROCKT DGTL LSTIL HEX D TYPE FF SCRN 01295 SN74LS378N3 A13U781 156 0469 02 MICROCKT DGTL 3 8 LINE DCOR SCRN 01295 SN74LS138NP3 A13U831 156 0048 00 MICROCKT LlNEAR 5 XSTR ARRAY 02735 CA3046 Al3U841 156 1611 00 MICROCKT DGTL ASTTL DUAL0 TYPE EDGE TRIG 80009 156 1611 00 A13U842 156 ...

Page 341: ...A2527 IN4152 A14CR916 152 014l 02 SEMICONDDVC DI SW S1 30V 150MA 30V DO 35 03508 DA2527 IN4152 A14CR917 152 0141 02 SEMICDNDDVC 01 SW SI 30V 150MA 30V DD 35 03508 DA2527 lN4152 A14CR918 152 0141 02 SEMICONDDVC 01 SW SUOV 150MA 30V DD 35 03508 DA2527 lN4152 A14CR919 152 0141 02 SEMICONDDVC DI SW S1 30V 150MA 30V DO 35 03508 DA2527 lN4152 A14CR921 152 0141 02 SEMICONDDVC DJ SW S1 30V 150MA 30V 00 35...

Page 342: ...E5 FXD FILM 100 OHM 5 0 25W 57668 NTR25J E lODE A14R927 315 0151 00 B010100 B011236 RE5 FXD FILM 150 01 1 5 0 25W 57668 NTR25J EI50E A14R927 315 0101 00 B011237 RES FXD FILM 100 01 t1 5 O 25W 57668 NTR25J E 100E A14R928 315 0151 00 B010100 B011236 RES FXO FILM 150 Off l 5 0 25W 57668 NTR25J EI50E A14R928 315 0101 00 B011237 RES FXD FILM 100 Off l 5 0 25W 57668 NTR25J E lODE A14R930 315 0151 00 RES...

Page 343: ... 260 2088 00 SWITCH PUSH 1 BTN 1 POLE TRIGGER 59821 2LLlGGNB021068 A14S954 260 2224 00 SWITCH ROTARY GRAYCODE OUTPUT 80009 260 2224 00 A14S962 260 2088 00 SWITCH PUSH 1 BTN l POLE TRIGGER 59821 2LLlGGNB021068 A14S963 260 2088 00 SWITCH PUSH 1 BTN POLE TRIGGER 59821 2LLlGGNB021068 A14S964 260 2088 00 SWITCH PUSH 1 BTN 1 POLE TRIGGER 59821 2lLlGGNB021068 A14S967 260 2088 00 SWITCH PUSH 1 BTN 1 POLE ...

Page 344: ...5 1321 00 B010100 B013139 CAP FXD PLASTIC 0 lUF 10 100V 14752 93501B104K A16C405 285 1383 00 B013140 CAP FXD PLASTIC O lUF 10 10 100V 84411 TEK 291 A16C455 290 0877 00 CAP FXD ELCTLT 1200UF 100 10 6 3V 56289 6720371 A16C460 290 0800 00 CAP FXD ELCTLT 250UF 100 10 20V 56289 6720257H020DMSC A16C461 290 0942 00 CAP FXD ELCTLT 100UF 100 10 1o 25V 55680 UPA1EI01MAH A16C483 281 0775 00 CAP FXD CER OI 0 ...

Page 345: ...30V 150MA 30V 00 35 03508 DA2527 lN4152 A16CR576 152 0066 00 SEMICONDDVC 01 RECT SI 400V lA 00 41 05828 GP10G 020 A16CR583 152 0141 02 SEMJCOND DVC DI SW SI 30V 150MA 30V 00 35 03508 DA2527 lN4152 A16CR586 152 0065 00 SEMICONDOVC 01 RECT SI 400V lA 00 41 05828 GP10G 020 A15CR588 152 0055 00 SEMJCOND DVC 01 RECT SI 400V 1A DO 41 05828 GP10G 020 A15CR630 152 0400 00 SEMICONDDVC DI RECT SI 400V IA 04...

Page 346: ...0 A16Q665 151 0134 00 TRANSISTOR PNP SI TO 39 04713 SM3195 A16Q721 151 1141 00 TRANSISTOR FE N CrvlNNEL SI TO 220 04713 STP3000 A16Q779 151 0798 00 TRANSISTOR PNP SI TO 220 S4091 2SB826 Q OR R A16Q836 151 0103 00 TRANSISTOR NPN SI TO 5 80009 151 0103 00 A16Q870 151 0103 00 TRANSISTOR NPN SI TO 5 80009 151 0103 00 A16Q879 151 0797 00 TRANSISTOR NPN SI TO 220 S4091 2SDI062 Q OR R A16Rll7 321 0289 00...

Page 347: ...0F A16R436 321 0385 00 RES FXD FILM lOOK OHM 1 0 129 1 TC TO 19701 5033ED100KOF A16R465 321 0184 00 RES FXD FI LM 806 0ff 1 1 0 1251 1 TC TO 19701 5033ED806ROF A16R466 321 0242 00 RES FXD FILM 3 24K Offl 1 0 1251 1 TC TO 19701 5043ED3K240F A16R473 308 0839 00 RES FXD WW 0 1 0ff 1 5 1 OW 75042 8W 20 R1000J A16R474 321 0143 00 RES FXD FILM 301 OHM 1 0 125W TC TO 07716 CEAD301ROF A16R475 321 0335 00 ...

Page 348: ...ES FXD FILM 10 OK 0ff 1 1 0 125101 TC TO 19701 5033ED10KOF A16R873 308 0839 00 RES FXD oM 0 1 DIfl 5 1 OW 75042 sw 20 R1 OOOJ A16R874 315 0101 00 RES FXD FILM 100 0ff 1 5 0 2SW 57668 NTR25J E 100E A16R875 321 0269 00 RES FXD FILM 6 19K 011 1 1 0 125101 TC TO 07716 CEAD61900F A16R876 321 0143 00 RES FXD FILM 301 OI t l l 0 125101 TC TO 07716 CEAD301ROF A16R877 321 0356 00 RES FXD FILM 49 9K Off 1 l...

Page 349: ... 00 SEMICONDDVC DJ ZEN SI 12V 5 0 4W 00 7638 14552 TD331689 A16VR929 152 0168 00 SEMJCONDDVC DJ ZEN SI 12V 5 0 4W oo 763B 14552 TD331689 A16W280 131 0566 00 BUS CONDUCTOR Olfo MYRES 0 094 OD X O 225 L 24546 OMA 07 A16W310 196 2827 00 LEAD ELECTRICAL 18 AI 2 75 L 3 4 80009 196 2827 00 Al6W315 196 2827 DO LEAD ELECTRICAL 18 AI 2 75 L 3 4 80009 196 2827 00 A16W360 131 0566 00 BUS CONDUCTOR Ol1 1Y RES...

Page 350: ...B010100 B010130 CAP FXD CER DJ o 047UF lO 400V 04222 SR308C473KAA A17C289 283 0187 05 B010131 CAP FXD CER DI 0 047UF lO 500V 51642 W400500 X5R 473K 243OM ONLY Al7C295 281 0798 00 CAP FXD CER DI 51PF l 100V 04222 MA101A51CX AA A17C317 290 0939 00 CAP FXD ELCTL T 10UF 100 10 lOOV 56289 672D106H100CG2C A17C327 281 0909 00 CAP FXD CEROJ 0 022UF 20 50V 54583 MA12X7R1 H223M T A17C409 281 0814 00 CAP FXD...

Page 351: ...508 DA2527 lN4152 A17CR644 152 0061 00 SEMICONDDVC DI SW SI 175V 0 1A DO 35 07263 FDH2161 A17DS490 150 0030 00 LAMP GLOW 6D 90VMAX 0 7MA A28 T WIRE LEADS 58224 A2B T A17DS491 150 0030 00 LAMP GLOW 6D 90VMAX 0 7MA A28 T WIRE LEADS 58224 A2B T A17J162 131 0608 00 TERMlNAL PIN 0 365 LX 0 025 BRZ GLD PL 22526 48283 036 QUA NTITYOF 2 A17J172 131 0589 00 TERMINAL PIN 0 46 L X 0 025 SQ PH BRZ 22526 48283...

Page 352: ...F A17R400 311 2236 00 RES VAR NDNWW TRMR 2OK 01 t1 20 1 O 5WLINEAR TK1450 GF06UT 20K A17R442 315 0331 03 RES FXD CMPSN 330 0tf 15 0 2514 01121 C83315 A17R443 315 0162 00 RES FXD FILM 1 6K Oftl 5 O 2514 19701 5043CX1K60OJ A17R500 315 0512 00 RES FXD FILM 5 1K OHM 5 0 25W 57668 NTR25J E05K1 A17R543 315 0393 00 RES FXD FILM 39K OHM 5 0 25W 57668 NTR25J E39KO A17R546 315 0201 00 RES FXD FILM 200 OHM 5...

Page 353: ...80009 670 8795 01 A18 670 7280 00 B014162 CIRCUIT BD ASSY SCALEILLLM 80009 670 7280 00 2430 ONLY A18 670 8795 01 BOI0100 6019999 CI RCUIT BD ASSY SCALE I LLLM 80009 670 8795 01 243OMONLY A18DS910 150 0057 01 LAMP INCAND 5V O l1SA WIRE LD AGED SEL 71744 71S3 AS 15 A18DS911 IS0 00S7 01 LAIi INCAND 5V 0 l1SA WIRE LD AGED SEL 71744 7153 AS IS A18DS912 lS0 00S7 01 LAMP INCAND SV O llSA WIRE LD AGED SEL...

Page 354: ...9701 5053CX47OKOJ R1077 311 1845 00 RE5 VAR NONlbl PNL 5K OhM O 5W 01121 W8355 Rl088 311 1845 00 RES VAR NONWW PNL 5K Otf 1 O 5W 01121 W8355 Rl099 311 1845 00 RES VAR NONWW PNL 5K O O 5W 01121 W8355 R1121 311 2248 00 RES VAR NONlbl PNL 2 10K Dtf 1 20 O 5W 12697 CM43462 S1000 260 1967 00 SWITCH SLlOE DPDT SA 250V 10A 125V MKD TK0935 4021 0512 51350 260 2202 00 SWITCH PUSH DPDT SA 250VAC 31918 N30 5...

Page 355: ...ram number of other diagrams that the circuitry of the circuit board appears on r I a D w nll OIf Mol utlr lm iouIP I l Tektronix Part No __ for circuit boards ___ _ Assembly Number _ f5 xxxx xx COII ONUH lUI_BEll EXAMPLE P O Part of circuit board _ Heat Sink _ Test Voltage Etched Circuit Board _ Outlined in Black B A Each assembly in the instrument is assigned an assembly number e g A20 The assem...

Page 356: ...D NAME MANUAL BINDER CRT CIRCUIT DIAGRAM 670 0070 Ro77 C671 0672 R679 873 0673 RoSO 1 680 6Rl Roll U 17 P60 R673 URIS PG07 R674 U619 U ti J R675 COMPONENTS LOCATED ON SCHEMATIC DIAGRAM 0668 HG b r626 n604 R677 R605 RG3 R608 Pc37 0606 RG09 617 0610 610 618 0615 HG14 619 0645 H 1f3 Cf 4 OE S6 R623 C625 066 R6ill 0 A6 CRT BOARD I _ _ _ 1_ _ I c 1o I r Find the circuit board in the instrument and comp...

Page 357: ... TRIC RECOGSICS l R O lo hl t _ PTAVA_I h s ROLL v TIME BASE LOGIC ACQ m d Ui CONTROllER w t AND L __ __J 8 ACQUISITION MEMORY r ACQSE 0 DRS AND leoNT SIGS OAC ACQ NUX D o CMUX CONT SEl 1 r E NB L S G s I r 4C ll RITGTR r l 1 z 0 GATE ARRAY OAT 6 1t i1 t r 1 TRIG SOURCESELECT SIGS TR I GGERS AND v PHASE CLOCKS PHASE 14 H A ST E R I lOCKEO 4 A SYSTEM CLOCK 4 5 V V CLOCKS lOOP _ T B 2 M EM CCD A ACQ...

Page 358: ...AMPL H V A C IN P U T cS_ ANODE MULTR 11 HV RGLTR t I FEEDBACK r CRT CONT _ VOLT T L 14KV CRT HV OSC 61V SPLY PULSE STRETCHER e r 1 VERT 0 SYNC g _ 5 SYNC PICKOFF COMPTR i FIXEO GAIN _ IL 0 U Z w Z _ LINE CNTR CLOCK FREE RUN oCH 2 OFFSET AMPL u u Z a Ul Ul I Z o I AGC L AMPL I A VIDEO V OPTION HORll AND I DISPLAY V OUTPUT oSPOTIIDB SPOT IIOBBLE CORRECTION 01 X 9 N X o 81 VOLTS CURSOR RGTR I 1 DISP...

Page 359: ...D l JNiJ YO LINE TRIG w up r NO r o A r V 5 1 13 11 5 3 11 sv PRIMARY POWER ONO 000 1 TAOT I fI LOG POWER SUS i i 4U i r s r O SI u SWITCH 5 ONO _j JIOo 1 2ll IUI 1 14 _ 15 II SCALE IllUM I JI BOARD 1 15 l J2COG I c C BRATOR t r I LO tACQUI5 T10N CrS L AY OUTPUT 0 1 5lJA5Y FtJ l Rl l 3fR JI2 5 PIZ5 r PROCESSOR BOARf A 12 JI 9 HJR4Ieeoc I WfS O TlON _1 sace x YPLH j RES T 1 0 OPTIDt 2430 Sel1 ice ...

Page 360: ...1 105 19 I 8C 1 128 2 6A P166 23 I 1M J30 22 lA 1 105 I 6 5M P131 16 lA P166 23 3M I J60 22 lA Pl06 6 3G P131 16 7A P166 23 I 4M J70 22 4A Pl07 14 4N P131 17 lJ P 166 23 I 5M J80 22 4A P108 19 1B P131 17 4K P166 23 BM J1900 11 7K PIll 10 7E P131 18 3M PI72 19 I 2M J1901 11 6K 1 111 10 80 P131 18 SA P173 19 I 2G J1902 9 6N 1 111 11 6A P131 18 aM P174 19 lG J1903 20 2M Pill 11 7 1 P131 8 1E P174 19 ...

Page 361: ...R952 1 U632 1 C374 20 CA336 21 Rl04 20 R474 2 R954 1 U640 1 C386 20 CR400 20 Al06 20 R502 21 R956 1 U650 1 C402 21 CR422 21 Rl1S 20 R506 21 R9S7 2 U654 1 C414 21 CA502 21 R120 20 A512 21 U660 1 C416 21 CA510 21 R122 20 R524 21 TP332 20 U664 1 C418 21 CA512 21 A124 20 AS29 21 TP370 2 U66S 1 C424 21 CRS26 21 Rl30 20 R572 2 TP371 2 U670 1 C426 21 CR594 20 R132 20 R580 2 TP372 20 U680 I 1 C4S2 20 CR60...

Page 362: ...4917 72 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 AT POWER OFF AT POWER ON 4 11 o WAVEFORMS FOR DIAGRAM 1 2430 Service ...

Page 363: ......

Page 364: ...20 PI20 PI20 CIRCUIT NUMBER U254A U254C U332A U572C U5BOA U580B U632 U640 U650 U654 U660 U664 U668 U670 U680 U6B2 U690 U692 TP840 R942 R943 R944 R945 R946 R948 R952 R954 R956 CIRCUIT NUMBER CHASSIS CHASSIS CHASSIS IK 2M 4E PI20 PI20 PIlO CIRCUIT SCHEM BOARD NUMBER LOCATION LOCATION See Parts Us for serial number ranges 4A CHASSIS 5A CHASSIS 9A CHASSIS SCHEM BOARD LOCATION LOCATION Pl03 PI03 PI03 C...

Page 365: ...I m II 3 I en I 0 I 2 I Q 21 3 N REV DEC 1986 4917 73 r W378 r I I 7 I I I I I II I I 16 16 i i 15 II e e WAVEFORMS FOR DIAGRAM 2 2430 Service ...

Page 366: ...AOt 29 DATA t I ____ U 2 B 4 w 2 _ _ _ J 8 4 4 __ B_U_F_F_E_R_ Ucim A 74FO L J t ENe A U360 NVMA 74F373 IV 12 2 y3 _1 1 8 s i 5 B Y 1 4 P o J L AO t lttt 1 v U264A _ _ _ OATA Busi POWER I U870 3 JliIij RD A2 38 lt 74532 DAD _ A 00 BUFFERS HNl o 3K i 39 elK __ 17 5vD SVD i U8 U254F U850A U552 A41 _ 4 I_ U3320 DADS f I6 00 l IIR R786 13 i U8748 UB74A 7 FO L 74lS260 U254D 7 LS2 S AS1 _ 4 2 I_ 74lS32 ...

Page 367: ...3 0773 13 R808 3 TP701 3 U842 13 C812 3 0781 13 RB09 3 TP7D2 3 lI851 13 C813 3 0782 13 RBID 3 TP811 3 U852 13 CB31 13 0783 13 RSII 3 TP812 3 U853 13 C832 13 0831 13 R812 3 TP813 3 U861 3 C833 13 R701 3 RSI3 3 TP814 3 U862 3 C841 13 R711 3 R814 3 TP815 3 U871 13 C642 13 R731 13 R815 3 TP821 3 U872 13 CB43 13 R732 13 R831 13 TP821 3 U8Bl 13 C852 13 R741 13 R8 l2 13 TP822 3 VR841 13 C861 13 R7S1 13 R...

Page 368: ......

Page 369: ...2 4 R934 4 5927 4 r R902 4 CR934 4 DS903 4 R935 4 5928 4 CR903 i 4 CR937 4 05904 4 R936 4 5929 4 CR904 4 CR938 4 05906 4 R937 4 5932 4 CR904 I 4 CR939 4 R901 4 5901 4 933 4 CR907 4 CR942 4 ROO 1 4 5902 4 5934 4 CR908 I 4 CR943 4 R902 4 5903 4 5942 4 CR909 4 CR944 4 R902 4 5903 4 5943 4 CR911 I 4 CR947 4 R903 4 5904 4 5944 4 CR912 I 4 CR948 4 R904 4 5907 4 5952 4 CR913 4 CR949 4 R913 4 5908 4 5953 ...

Page 370: ...13 50 4A 591B 6F 10 C903 7A 3A CR939 2 4A R914 5E 4B 5919 6G 10 C904 7A 3A CR942 6C 2A R916 IF 4B 5921 7H 10 C905 4L 3C CR943 6E 28 R917 lG 4C 5922 7C 3 C906 4M 3D CR944 3E 4B R918 lH 40 5923 70 3E CR947 4E 3C R919 2J 3E 5924 6E 2B CRSOl 3J 2C CR948 4E 3B R919 2K 3E 5927 6F 2C CR902 3J 2B CR949 4E 4B R922 5M 1E 5928 7G 2D CR903 2J 2B CR952 8C 3E R923 6M lF 5929 7H 2E CR904 2J 20 CR953 8E 3F R924 6...

Page 371: ...R251 RI21 N R175 R262 TPI73 R R2SI TB I 14 0 _ R28l 8 A170 cln a UI50 6 on J _ H Jill 0 r on JI41 _ __ rH _ ssot JI52 0810 00 00 era S800 C810 U7DO 0 G TP612 o ll J US10 e711 y CGQl R71D JIQS o 1 0630 CR SOO CR50 2 CR501 CR500 CRG02 CR5D3 5600 o in u C511 U510 U511 RSDI 1 500 RSOO CR60l g C60Q R50 CD V i o on JI77 U420 C I c i il cR AT40D C423 R 421 R422 JI78 U320 AT300 UIOD _ 0110 ClI2 2 J CIIO C...

Page 372: ... 0151 11 R170 10 C225 9 C550 10 C790 14 CR622 9 0170 10 R175 10 C230 9 CS60 10 C809 6 CR650 10 0240 9 R181 5 C231 9 CS61 14 C810 6 CR701 5 0250 11 R182 5 C232 9 CS62 10 C812 6 CR702 5 0251 11 Rl83 11 C233 9 C563 14 C813 6 CR771 14 0270 11 R184 11 C235 10 C580 11 C817 6 CR7BO 14 0271 11 R185 11 C240 9 C581 10 C820 14 CR810 6 0287 11 R186 11 C241 11 C582 14 C821 6 CR870 14 0288 11 R201 9 C242 10 C59...

Page 373: ...95 12 A624 9 A764 14 A887 14 U650 5 A365 10 A496 12 A625 9 A765 14 A888 14 U651 5 A366 10 A497 12 A626 6 A766 14 A889 14 U660 5 A368 11 A498 12 R627 6 A767 14 A890 14 U661 5 A370 10 A499 11 R628 6 A768 14 A891 14 U661 6 A371 11 A500 9 R631 10 A769 14 Al001 9 U700 6 A372 10 A501 9 A632 10 A770 14 Al002 9 U770 14 R373 10 A502 9 A633 10 A771 14 Al003 9 U775 14 A374 10 A510 9 A634 6 A772 14 Al004 9 U7...

Page 374: ... j i I f3 9 i I IR t tl I I UX A DORO E 3A 5A AO 43 U280D A R 4 OAC UXAODA 0 2 SEl CO 05 ___ TO 74LS02 _ 12 A 280 UBfJ Sj1 OAe foIIUX AD0R2 9 4 5V 2 1 JIT1T AIN U 57FO 1 13 3 _ R 9 4 14 T e660 U661A UB 6 0 10 7 Tl07 DACMUX0 y U SAMPLE AND HOLD 5 6 _____zj L i ii ACQUISITION CONTROL REGISTERS I 8 5 4 3 2 4917 75 o 7 o WAVEFORMS FOR DIAGRAM 5 6 ASSEMBLY A10 CIRCUIT SCH M BOARD CIRCUIT SCHEM BOARD CI...

Page 375: ... 1 vAH 5VOF G D OGl YRL 151 1 TL _ 10 022 J1U PUi tlr C66 k tIl R 6 3 9 8 r H F _J cr nn TO 0 47 T 4 99t n 1I0 4 m U631C 4 TL074 DAC MUX 3 SAMPLE AND HOLD SAMPLE AND HOLD DAC MUX U700 74LS165 COMPONENT NUMBER EXAMPLE Component Number A23 A2 R1234 4sse blY TT h mil ic Nullbe SubasselllbJ Y bUelrt NU e i fused I U840D 2 j CD4051 S r __ R 2 qll NHY DAC MUX 2 1 p g 2 SEL SAMPLE AND HOLD A823 U820A 5 V...

Page 376: ...1 18 C712 15 R153 18 R583 18 U212 17 U542 17 C282 I 18 C720 I 15 R155 16 RS84 I 18 U220 I 17 U5S0 17 C284 I lB CnD 15 R1S6 16 R58S 18 U221 I 17 usee 15 C290 I 15 C731 15 R160 18 RS86 18 U222 I 17 U600 B C291 15 C732 15 R161 18 RS87 18 U223 17 U601 6 C292 15 C74 15 R162 18 RS91 18 uno 17 U610 8 C312 I 15 C770 15 R163 16 R592 18 U231 17 U612 I 7 C313 15 C772 15 R164 16 R593 18 U232 17 U613 8 I C323 ...

Page 377: ...2430 Service ADD DEC 1986 o o FIgure 9 9A A11 Partial Timebase Display board SN B011145 Below R 0Q Wl40 Jl17 ...

Page 378: ...4917 76 o o 01 c _J o e e TEST SCOPE TRIGGERED ON U623 PIN 5 TEST SCOPE TRIGGEREDON U832 PIN 6 EITHER CH2 OR EXT 1 e e e o WAVEFORMS FOR DIAGRAM 7 2430 Service ...

Page 379: ... U52 3 II 3J l 00ioE QQ___g 5 6 DSTI 7 t r t q 5 V 0 C 2 0 _ i iI 2 OS2 Jo Rga4 I I 58 R7 g _ I I Ul O U720B oS21 0 I R 2 0 U i 38 L If i I R H 0 14F74 00S21 U832At 0 I _ _ I R7fi VoU720A 6 r O_K_ __l_ L I 74F 1 O 2 I I 4 f6 1 3 ii a i f I 5L____ 0 4X C _ _V_O _ l I l C Q u 7 l 024 p R om 6 I 4 4 I I lo R 1 r 02T40XPC o R NC FROM __ Hi _t 0 2 0 _ _TT l 4 C __ JTdT l C _12qS a 5 SYNC4C 5 G oA P1 20...

Page 380: ..._ j i 1 I i 1 Li e o CHi CH l r i t I J____j 1 _ _ __ j o o r j 1 I j I _ _ l t t I I 1M i J _ i j I i _ _ j_r nJ_ _ 1 Iii n i lr _i __ r _ CHl I I r t c i r ___ r I I 1 I J l 1 F t tH 1 I _ I e i t i _i__ l__ 1 t I_ I p I I i _ _ t nr r e f J iI Ii ilL j T t __ fu T1 o P4rij UUT I I CHl L WAVEFORMS FOR DIAGRAM 8 2430 Service ...

Page 381: ..._ J 2 38 3Y EGO 2 J I t h t l 1 2 11 1 4A 12 E EC 4 1_ _ MOO P 3R 2 U512D E02 6 4 _ 75 U500A 74LS32 SAVEPEQ g 1 i l M03 __ _ L 3 t _ o_ 1 _ _ _ _ _ i _ j _ f i E05 13 2 H04 U73 D I EOG 15 H05 ______ i3 13 74FOB i EO 2 E07 27 L 3 M06 2 T82ME I f O E 53 5 0 _ 3 1 I erB H07 U50GD 11 2 t T l liE ____ __ o 13c __ _cAC U RE 7 L500 If _ I f I U500 j R C U520D m r I I L_ij REp H Et1 7 4 O l I B A 7 Es J c...

Page 382: ...4C R521 2J 60 R530 4A 7E C202 7H 38 CA311 6G 4C RI10 6J 18 R612 5A 7C C205 6G 3A CR410 lG 5C Rlll 6J 2C R613 5A 7C C210 6J 38 CR411 IG 5C RI12 6J 2C R614 5A 7C C211 6K 3B CR500 30 7C RI20 6J 2C R622 4A BC C212 7G 3C CR501 30 7C R121 5G 20 R623 4A 80 C213 5J 3C CR502 3E Be Rl30 4M 2E R624 4A 80 C214 5H 3C CR5D3 3E BC Rl3l 5L 2E R625 4A 80 C215 5H 30 CR6DO 3 8C R132 1M 2F RlOOI 7B 3A C216 6H 3C CRGO...

Page 383: ... _L A I TP345 FISO e e MORE j i l __ L J n l _ n J 1 1 3 U U IT CHI s u I __ _L __ L _ __ i_ CHI 58e u I l_ e e O H n A tfml 11 I r l ffr t I j I 1 I W It W W i t i I _ _I Li J __ CH1 5 U __ __ h t Li_L L i_ r i I _ U UU uU U l U UU s 2 11 u uerT 5U CH1 5U CHI CAL SIGNAL ON CH1 INPUT NORMAL ACQUISITION i _I t l Lilt _ 1 rrnb y CHI 2ehu S WAVEFORMS FOR DIAGRAM 10 2430 Service ...

Page 384: ... CH2 CdOB03 f I I 510nH 14 R23 1 _1 j g f I w cO 0 OUT3 TO I Q n ir I F1 It 12K PHl J111 0 r c __ H r a i i i W i n _i _ j RB 7 L G FO IAEF HQVAfF fTlo 37 38 _ l5V n_ re r lil g 1 N rei 1 EA I I t_j p i 1 1 B __Q0 4 L i i r s t6 5 4 t7 A t lj55 8 FAOM I1f A 19 23 27 TP 1347 j_ C14 A370lEO F C i G I C g 2V SUPPLY TO Component Number L__ ___ W110 _ _ _ r 470F V 100 IL T T 1__ 2V A587 THIS OIAG A23 A...

Page 385: ..._ _l _ __ 1 i _ J_ _ iii tH Z I I r 1 T _L_j__ _ j J J_L __ J_ _j_ J _ _ L 1 _ _ _t m l _ s 3 V YE r _ ttl1 au r L _ _ _ p j i __ L_ L_u T rlJw CHl 209 1i 12 JU tv _ I I1U T lYT V _ I I _ I ji o1 e Hl sea v LH S89 V 0 fi i t I i e WAVEFORMS FOR DIAGRAM 11 2430 Service o e ...

Page 386: ... 2 l3 CC 2F 0271 9 e TRIG eLK 47 CCD 2 CHi TAIG 6 FROM 140 31 2H o FADM HI40 2A SVOC291 l 4 CIS9 5Vo f R v 2V _ 2V D22 1 6 2 19 D 46 47 F aM 2VI 14 3BO 5V IDGNO FRO 5V _ 5v 74Foa 1 7F 4 7 jI3 9 22 2 f i 3i i IAr F A384 cseo 6 t 4 6 A4al UP4 A 15V L t OV Tl 5v 31 AEf4 S m TP5S9 TP231 t __ I IKoh 0 21_2 1p _ __ 6 j U381 12 IK 3 I CRSBI IJ I8c Tl CS90 1 I 1 1 120 0 r I 1 1900 4NS 67 380 R381 3 L 750 ...

Page 387: ... Itt I J t t _ j_j____l_l f r L i CHI sit Ii J 1 7 1 11 IIUT i 1m_ I 1 TI o a 3 CIl o a o s G a 3 TEST SCOPE TRIGGERED ON SLRMP1 SLOPE SLOPE ENVELOPEAQUISITION MODE CAL SIGNAL INPUT TRIGGERED ACQUIRING SEC DIV at 100 rns i LJ_j__ i to _ _j_ _ i r I _ _ __ _ t I I 2 t IZ U UE l 1 r l t I TEST SCOPE TRIGGEREDON START WAVEFORMS FOR DIAGRAM 12 e 2430 Service CHl 56ih U CHZ see v 0 1 ...

Page 388: ...5K 5N R284 60 4N R493 4J 6N C491 3H 6N R289 60 3M A494 3D 5N C492 6K 6N R292 BC 3N R495 3H 6N C590 6J 4N R293 BE 3N R496 2E 6N C591 6J 5N R295 7K 3N R497 2E 6N R296 7L 3N R49B 1F 6M CR290 80 3N R297 7J 3N R590 IE 4N CA291 7C 3N R298 6J 3N R592 3D 5N CR292 80 3N R299 6J 3N R594 5E 4N CR392 3D 5N R386 6E 3N R595 5C 4N CR490 I 4E 5N A387 6E 4N R596 1C 4N CR491 3C 5N R388 BH 4N R59S Be 5N CR590 lE 5M ...

Page 389: ...NIT FRONT PANEL 2430 INIT FRONT PANEL r L t _ _ tt i I I 1 e e 2430 AT 5 NS DIV NO HOLDOFF tHl CH2 e e TRIG ON SLOPE t _ L _ L i i 1 _i _ __ pi t J t4 tHl CMi I TEST SCOPE IN ENVELOPE WAVEFORMS FOR DIAGRAM 13 2430 Service e ...

Page 390: ...ER LOCATION LOCATION NUMBER LOCATION LOCATION NUMBER LOCATION LOCATION NUMBER LOCATION LOCATION C700 3J lA 0772 6H 2L R844 18 3G U842A 5B 3G C731 2H IF 0773 7J 2L R861 5L 2J U842B 4B 3G C781 3J 1M 0781 7K 2M R863 7K 2K U851A 4C 3H C831 78 2E 0782 7H 2M R871 7K 2L U851B lC 3H C832 7C 2F 0783 7G 2M R881 7L 2M U851C 4K 3H C833 7D 2F 0831 7D 3E R882 8L 3M U852A lD 3H C841 se 3F R883 7L 3M U852B 2D 3H ...

Page 391: ...TO CH 1 INPUT AC COUPLED VERT MODE CH 1 CH 2 FOR CHANNEL 2 TROUBLESHOOTING CHl 5e v S 68ifU 2 CH2 SehlJN e i h r h tn c nr l l JJJ v j iiJ dijU i r JulJJ J Ci i i iJ UlJjll 1 LJ 1 i l I n nrF n U ri t t rrt t TI j th IIIJ Ii Ii i I i lit loll I P _ _ _ 1 J IIiI L __ L J r iI _J___j I 1 J I i I I i i _I L l i e e TEST SCOPE LF REJ COUPLING TRIGGERED ON 2430 CALIBRATOR SIGNAL WAVEFORMS FOR DIAGRAM 1...

Page 392: ...R888 2K 9N C680 6H 8M 0870 3L 8M R775 lK 8M R889 7K 8N C685 5J 7M 0811 4M 9M R776 6e 8M R890 7K 8N C686 5J 7N 0872 3M 8L R777 5G 8M R89P 5F 9N C762 4C 8J 0880 8L BN R778 3K BL C763 4D 9J 0881 8M 8N R779 3L 8M U560A U 7K C765 5C 8K 0882 7M 9N R780 6C 8M U560B 3J 7K C766 4E 9K R781 6E 8M U560C 6J 7K C768 5G 9K R550 4D 7G R782 6M 8N U560D 8J 7K C770 lE 8L R564 2J 7K R783 3K 8M UTiOA lF 8L C771 IE 8L ...

Page 393: ...the next input data to the AID Converter to settle before conversion starts The A2D REF voltage D S V is high and low pass filtered by C691 and C570 respectively A reference level of D S V allows conversion of input levels from D S V down to 0 V The time multiplexed CCD Data signal current develops a voltage across R581 corresponding to the selected CCD output voltage This signal is applied to the...

Page 394: ...LOCATION NUMBER LOCATION LOCATION C213 6C 3D C520 6C 5E C703 6C 8C R7BO 38 8M C223 6C 2F C521 6C 5F C711 6C 7D R7Bl 2B 7M C231 6C 2H C522 6C 5F C712 6C 7D R8BO 4B BM C240 6C 2J C523 6C 5F C720 6C 8E R881 3B 8M C243 6C 2K C531 6C 5H C730 6C 7G R884 3B 7M C261 5C lG C532 6C 5H C731 6C 7H R890 4A 8M C270 5C 2l C540 6C 5J C732 6C 7H R891 4B BM C290 58 2M C541 6C 5J C740 6C 7J C291 7B 4M C550 5C 6M C17...

Page 395: ...48 4E R152 1M lK U4211 2C 4F A155 5M 2K U421B 2C 4F R156 5M 2K U421C 5C 4F R450 8K 5K U421D 4C 4F U422A 78 4F U130 7G lH U422B 7C 4F U140 7J lJ U422C 7C 4F U141 2M lJ U422D 6C 4F U142 1M lK U423A 80 5F U240 7K 3J U430 7E 4G U241 2J 2J U431 2E 4H U243 4M 2K U440 5E 4J U250 5M 2K U441 I 4J 4J U314 4 3 U450C 8H 4K U320 3G 3E U321 5G 3F W140 BM 8K Partial A 1f also shown on di gmms 7 B f 5 f 7 8nd lB ...

Page 396: ... 10 m TI 0 II 3 0 0 II 0 G II 10 4917 85 3 1 j r 11 pt J h lH 1 i rT i 1 1 I i i t i l T 1 1 t t l i J r l u T r 2r 3iru lIT i _ __ CHi I TEST SCOPETRIGGEREDON 126 WAVEFORMS FOR DIAGRAM 17 2430 Service ...

Page 397: ... 02 MODE CONTROL I IfL f PS_ r Of 2S0KHZ U415A 4L Hh DISPLAY 06 7 OCII L AA 1117 STOP512 13 03 TER 1 I _ _ C 4 cc 74lS74 07 0 i I r _ 3Y 0 0 PRES1AAT O REGIS OC3 S o _R T B ST Rl S o QIS 9W U313 l WAB 43 Yg____ 011 START 7 05 I c 13 R 01 I D l 7 LSS U414A U323A U210 EN I 06 r R 2IF U41 30 NC Ilfs C DISO 74LS74 o J P RE S T AR T O I SP L A V I OK 74 L 2 K H Z 0I S P LA y I I Sl OIf P DI S I S R OP ...

Page 398: ...4917 86 GIl MORE HF REJ COUPLING Ii f l tH 2430 TRIGGEREDON AND DISPLAYING CAL SIGNAL 1 mS DIV 200 mV DIV TRIG POS 1 2 SAVE MODE TEST SCOPE HF REJ COUPLING WAVEFORMS FOR DIAGRAM 18 2430 Service ...

Page 399: ... 9 Q18 5 K r C182 2 711 F 15V AlSO K r CMr c VERT VECTOA A276 COM 5V 5V CW FH41 OK VERTICAL OUTPUT VERTICAL VECTOR GENERATOR L K J H G F E D c B A 8 See Parts List for serial n umber ranges 7 6 5 4 2 1 ASSEMBLY Al1 CIRCUIT SCHEM BOARD CIRCUIT SCHEM BOARD CIRCUIT SCHEM BOARO CIRCUIT SCHEM BOARO NUMBER LOCATION LOCATION NUMBER LOCATION LOCATION NUMBER LOCATION LOCATION NUMBER LOCATION LOCATION C130 ...

Page 400: ...I4B 19 R300 19 UI68 19 C179 H C640 19 jl72 19 R1S0 19 R305 19 U168 19 C189 19 C6 3 19 jl73 19 R161 19 R315 19 U227 19 C218 19 C688 19 j174 19 R162 19 R393 19 VR210 19 C222 19 e689 19 J176 19 R170 19 R395 19 VR316 19 C234 19 e690 19 L60S 19 A17A 19 R400 19 WI75 19 C239 19 C692 19 0145 19 RI79 19 R442 19 C260 19 C694 19 0152 19 R200 19 R443 19 C268 19 CR134 19 0215 19 R209 19 A500 19 e279 19 CR315 1...

Page 401: ...fil I li 1 711 _ 1 1i 0 1 5 V _ ffi Y T O D 3 7fI3 4 __ __ I __ pn 4 J n d R2 0 r _ 5 V_ _ 7 v 6 I5V Ii 7 t I_ r 1 0 V D 5 T O lb V i OOK RI099 C I loll 4 4 6 K Q145 CSII l Ji741 4 n lSV 5l t GNIl I t R689 I b 0 7 1 TO 1601l c l 2 I IfJAIZ 357K R247 1i I s P172 172 H5V A I l T 121 DK H _ r2 1SV T 5V CW fR305 I 4 h tl RIIS 0 51 L___ I _ I I L f i K lSV L_ _ 1 7 r_ M L K B N A 1 ASSEMBLY Ale CIRCUIT...

Page 402: ...ROLL MODE 154 IS LAST BYTE OUT EVENTS SOURCECH 1 153 IS FIRST BYTE IN PRESSGPIB TRANSMIT TO RING BELL ON 2430 e e CH 1 SIGNAL PRESS GPIB TRANSMIT TO RING BELL ON 2430 L 1 f j 1 j I T j r r l _l_j___ J __ 1 L CHi TEST SCOPE IN NORMTRIGGER WAVEFORMS FOR DIAGRAM 20 2430 Service ...

Page 403: ... WE 02 D5 2 HSS91 t 40 2 3 r 17 1307 9r l J _ _ _ __ ____ L__ I EJ i I L__ Ir r B A U532 I L_ p jEN 74LS245 G L _ 9 U8 t12 e l L 10 a I 56 A 2 U332C 800 BD7 A f o 74LS32 T Jt ODM V t J 1 32A IS LOCATED TO VIDEO on iL__ ONDIAGRAM 1 u3 E 20 7H i GPISAESET H J G F E D B C _ ___J L A L M N 5V A300 I_ AAllAL FLEX 10K AEAA CFGOO H25i P125 J1905 D _ iPENLIFTI I SN iIDlD2SS E o 7 Al04 YOUT 11 1 I lK IOU P...

Page 404: ... INVERT ON 172 j e iii _ _ _ y _ j T i r 2 v S T i _ 8 0 IJEltl i L 1 j i i r CIl1 MORE LL e 33 258 JERT CHI b roJ ii j au N i 18 i8 07 OERl till r L eMl 111 1 i j__ _j_J __j 1 11 0 COMPOSITE FLAT FIELD NEG SYNC VIDEO SIGNAL AP PLIED TO CH 2 INPUT OF 2430 TRIG SOURCE CH 2 TRIG CPLG TV A TV COUPLING ALT o BW LIMIT 20 MHz ON TEST SCOPE WAVEFORMS FOR DIAGRAM 21 2430 Service ...

Page 405: ...NENT NUMBER EXAMPLE f v f v _ TVCLA ___ i _2 26 J9 U541A I R ij NC 7 874 R413 5 0 NC 74500 Component Number lOOK A410 r I q 3 _2 FLO U541C U424C U524A A23 A2 R1234 r 7 U 4 1 0 C H _7 2 K FAOM q J120ATHO I Uj 5 7 0_0 __ l_ 6 7 S7 A N mbb rlY TT w IS C 3096 I5V 5 3 A2W CLAMP SWITCHING iW1 36 L v L I HORn lK 1 Sub ass embly W ber I L _ _ Numb r if US d 6 4 U410B I CA3096 5V f FIELD Cho sJs ounted co ...

Page 406: ...466 23 P30 22 R395 23 R836 22 VR380 23 C218 22 CR483 23 P60 22 R396 23 R845 22 VR870 23 C223 22 CR484 23 P70 22 R400 22 R847 22 VR929 22 C225 22 CR485 23 P80 22 R405 22 R864 23 W270 22 e227 22 CR510 22 Q148 22 R410 22 R8G5 23 W280 22 238 22 CR550 22 Q240 22 R428 22 R866 23 W310 22 C244 22 CA551 22 Q279 23 R429 22 R872 23 W315 22 C260 22 CR575 23 0295 23 R434 22 RS73 23 W360 22 C305 22 CR576 23 Q36...

Page 407: ... CONTROL CIRCUIT POWER NORMAL AC LINE OPERATION i j I_ Cltl tlti 1V e MORE NORMAL AC LINE OPERATION NORMAL AC LINE OPERATION NORMAL AC LINE OPERAnON NORMAL AC LINE OPERAnON I llr 155 If liEU I I _ i 1 I TEST SCOPE IN ENVELOPE NORMAL AC LINE OPERATION NORMAL AC LINE OPERATION rr t e Cltl NORMAL AC LINE OPERATION i l r _ l T _ j _ _ ___j__ _ _ _ L td11 I I I 5 I 7 U t 2 t l _ i __ 1 NORMAL AC LINE O...

Page 408: ...4917 92 CONTROL CIRCUIT POWER ONLY 1_ _ _ 1 I I I ell1 EITHER AC POWER OR CONTROL CIRCUIT POWER EITHER AC LINE OR CONTROL CIRCUIT POWER WAVEFORMS FOR DIAGRAM 22 cont 2430 Service ...

Page 409: ...CHEM BOARO NUMBER LOCATION LOCATION NUMBER LOCATION LOCATION NUMBER LOCATION LOCATION NUMBER LOCATION LOCATION C105 5C 4B CR5S1 5L 2F R128 60 6E RB 5 60 6F C128 40 6E CR630 4H 20 R129 50 20 R847 60 6F C137 4E 6E CRS l1 4J 20 R137 2D 50 R923 5G 5E C138 4E 6E CR650 5K 3G R144 2H 60 R924 5F BE C144 2H 60 CR65 8K 3G R145 2J 6F R930 3E SE C145 80 3E CR723 5H 5F R146 2H 30 R934 5G 5E C218 4C 2C CR724 5H...

Page 410: ...5M A575 lC 5L U410A 2E 3K C764 7B I 2L 0365 7E 2K R576 lC 4L U470B 3D 3K C873 8B 6K 0465 2E 3K R578 6J 4K U570A lC 5K C890 2L 2L 0479 2F 3J R675 8C 5L U570B 7B 5K C900 2J 3M 0665 6H 4K R676 7C 5L U579 16 5J COOl 2K 2M 0779 6J 4J R684 5J 4L U679 88 6J Q870 3H 3K R6B6 46 3L U770A 5H 4K CR26S 7E 2L 0879 3J 3J RB88 48 2L U770B 5G 4K CR266 6E 2L R758 8K 5G U870A 4H 3K CR465 2E 3K R164 2K 3L R760 8K 6G ...

Page 411: ...TINUALLY STARTS UP AND SHUTS DOWN IN A REPEATED MANNER AS THE OVER CURRENT SENSE CIRCUIT DETECTS THE EXCESSIVE SECONDARY LOADING THE VOLTAGE WAVEFORM PRESENT ON THE UNREGULATED VOLTAGE LINES GIVES AN INDICATION OF WHETHER THE SECONDARY IS EXCESSIVELY LOADED CHECK THE WAVEFORMS AT THE ZERO OHM RESISTORS INDICATED IN THE ACCOMPANYING COMPONENT LOCATION FIGURE FOR AN INDICATION OF EXCESSIVE LOADING A...

Page 412: ...OUBLESHOOT MONOSTABLE FLlP FLOP UB29A 1 CHECK GATE DRIVE WAVEFORMS AT PULSE WIDTH MODULATOR FET GATES BY ATTACHING SCOPE GNO TO CATHODE OF CR426 AND PROBING GATES DIRECTLY DRIVE h 7 1 45 DUTY CYCLE PERIOD 40 Js YES CHECK VOLTAGES AND COMPONENTS 0240 014B OB36 VR144 VR929 CR239 C244 C24S IN CONTROL POWER SUPPLY FOR DEFECTS REPLACE DEFECTIVE COMPONENTS FIND EXCESSIVE LOAD CHECK U233 UB34 UB40 C138 C...

Page 413: ...ND BACK ON TO CHECK FOR FAILED TEST CODE ON TRIGGER LEOS DISTORTED DISPLAY PARTIAL LOSS U411 PIN 8 U412 PIN 8 U415 PIN 1 STOP DIS U415 PIN 5 START DIS U323 PIN 2 DISPLAY U323 PIN 1 PRESTART U414 PIN 6 DISON U313 PIN 6 U313 PIN 1 DCB U313 PIN 2 STOP 512 TYPICAL DISPLAY STATE MACHINE WAVEFORMS PANEL INIT SAVE MODE MENU OFF I1I1111 I J 0 _j TROUBLESHOOT FAILED TEST AS IN EXTENDED DIAGNOSTICS TABLE 6 ...

Page 414: ... WRONG CLOCKS YES CHECK ODS21 s 4XPC CLOCKS TROUBLESHOOT MISSING OR WRONG CLOCKS YES CHECK DS23 DS11 DS21 0513 CCD DATA CLOCKS TROUBLESHOOT MISSING OR WRONG CLOCKS YES CHECK OSAM1 OSAM2 AND RESET CCO OUTPUT SAMPLE CLOCKS NO NO NO YES CHECK 4XPC 2XPC REF4 5 4MHz AND BMHz CLOCKS YES CHECK CLOCKS SUPPLIED BY SECONDARY CLOCK GENERATOR U710 U711 U712 5MHz ClK2 ClK1 ClK3 YES CHECK CLOCKS SUPPLIED BY THE...

Page 415: ...cified Attaching Parts always appear in the same indentation as the item it mounts while the detail parts are indentedto the right Indented items are part of and Incluoec with the next higher indentation Assembly and or Component Attaching parts for Assembly and or Component END ATTACHING PARTS Detail Part of Assembly and or Component A ttachmg parts lor Detail Part END ATTACHING PARTS Parts of De...

Page 416: ...EVA I L 60134 3325 SUB OF COOPERINDUSTRIES INC 71400 BUSSMANN 114 OLD STATE RD ST LOUIS MO 63178 DIV OF COOPERINDUSTRIES INC PO BOX 14460 73743 F SCHER SPECIAL MFG CO 111 INDUSTRIAL RD COLD SPRING KY 41076 9749 78189 ILLINOIS TOOL WORKSINC ST CHARLES ROAD ELGIN IL 60120 SHAKEPROOFDIV 79338 COMPLEXTOOLING INC 4635 NAUTILUS CDURT S BOULDERCO 80301 80009 TEKTRONIX INC 14150 SW KARL BRAUN OR BEAVERTON...

Page 417: ... 2427 PRATT AVE 7885 SW HUNZIKER 3000 LEW S AND CLARK HWY TKl544 COMPUTERCONNECT ONS TKl634 SCHRAMMPLASTIC FABRlCATJORS TK2165 TRI QUEST CORP City State Zip Code Id1ress Mfr Code Manufacturer CROSS INDEX MFA CODE NUMBER TO MANUFACTURER Replaceable Mechanical Parts 2430 Service ...

Page 418: ... 32X 0 312 FLH l00 DEG STL 834S6 ORDERBY DESCR ENDATTACHINGPARTS 11 337 2926 03 SHLD IMPLOSION 4 44 X 3 67 X 0 06 CLEAR 80009 337 2926 03 12 334 5581 00 B010100 B011937 MARKER IDENT MKDSAFETY STANDARD 80009 334 5581 00 334 5581 03 B011938 MARKER DENT MKD SAFETY TEKTRONIX 07416 ORDERBY DESCR 13 334 5458 00 MARKER I DENT MKD CONNECTOR DENT STD 80009 334 5458 00 334 5457 00 MARKER I DENT MKDCONNI DEN...

Page 419: ...2430 Service 21 o IJI Z m t ...

Page 420: ...REVJUL 1987 2430 Servi Ice 13 A14 A18 j5 N 0 z If If jn II m 43 II 31 ...

Page 421: ... 1 PANEL FRONT 80009 333 3095 00 OPTION 05 ONLY 22 386 4728 01 SUBPANEl FRONT 80009 386 4728 01 23 348 0792 01 GASKET ELECTRlCALSHIELD 34 0 L 80009 348 0792 01 24 175 4593 00 BOI0I00 BOI0709 CA ASSY SP ELEC 2 26 AWG 4 0 L RIBBON 80009 175 4593 00 175 4593 01 BOI0710 CA ASSY SP ELEC 2 22 AWG 3 5 L RIBBON 80009 175 4593 01 25 384 0837 00 EXTENSIONSHAFT 13 470 L X 0 250 X 0 300 80009 384 0837 00 26 3...

Page 422: ... NUT PL ASSEMWA 6 32 X 0 312 STL CD PL 78189 511 061800 00 ENDATTACHINGPARTS 53 195 3990 00 LEAD ELECTRICAL 18 AWG 4 5 L S 4 80009 195 3990 00 ATTACHINGPARTS S4 210 0457 00 NUT PL ASSEMWA 6 32 X 0 312 STL CD PL 78189 S11 0618OO 00 ENDATTACHINGPARTS 55 210 0457 00 1 NUT PL ASSEMWA 6 32 X 0 312 STL CD PL 78189 511 061800 00 56 131 1471 00 1 CONN RCPT ELEC RA 3 EA WILE FEWILE CONT C0130 RA1306 57 210...

Page 423: ...EW TPG TR 6 32 X 0 75 TYPE TT PNH STL TK0858 ORDERBY DESCR 213 0927 00 8010448 SCREW TPG TR 6 32 X 0 875 TYPE TT PNH STL TK0858 ORDERBY DESCR ENDATTACHINGPARTS 352 0171 00 8010258 B010299 HLDR TERMCONN 1 WIRE BLACK 80009 352 0171 00 13 CIRCUIT BD ASSY MAIN SEE AID REPL ATTACHINGPARTS 14 213 0942 00 B010100 B010447 1 SCREW TPG TR 6 32 X 0 75 TYPE TT PNH STL TK0858 ORDERBY DESCR 213 0927 00 BOI0448 ...

Page 424: ...VAR PRGM1X 100X 10DB CH1 SEE A10AT300 AT4oo REPL ATTACHINGPARTS 35 211 0304 00 4 SCR ASSEMWSHR 4 40 X 0 312 PNH STL T9 TORX 01536 ORDERBY DESCR ENDATTACHINGPARTS 36 351 0677 00 B010100 B011482 2 GUIDLMAG CATCH 80009 351 0677 00 351 0677 01 8011483 2 GUIDLMAG CATCH BLACK PLOYCAR8ONATE 80009 351 0677 01 37 136 0252 07 32 SOCKET PIN CONN W ODIMPLE 22526 75060 012 38 361 0382 00 6 SPACER PBSW 0 275 L ...

Page 425: ...2430 Service ...

Page 426: ...2430 Service 22 a II fA C ...

Page 427: ...1 ATTACHINGPARTS 13 210 0586 00 NUT PL ASSEM WA 4 40 X 0 2S STL CD PL 78189 211 041800 00 ENDATTACHINGPARTS 13 1 210 0917 00 B010440 B012056 WASHER FLAT 0 191 10 X 0 625 00 X 0 025 86928 ORDERBY DESCR STANDARD 210 0917 00 BOI0440 B0123D4 WASHER FLAT 0 191 10 X 0 625 00 X 0 025 86928 ORDERBY DESCR OPTION 05 14 337 3175 00 BOI0I00 B013150 SHIELD ELEe LV LOWER 80009 337 3175 00 ATTACHINGPARTS 15 211 ...

Page 428: ...LEASSY PWR 3 X 0 75MM SQ 220V 98 0 L S3109 ORDERBY DESCR OPTION Al ONLY 9 161 0104 07 CABLE ASSY PWR 3 X 0 751 1 SQ 240V 98 0 L TKl373 A25UK RA OPTION A2 ONLy 10 161 0104 05 CABLEASSY PWR 3 18 AWG 240V 98 0 L S3109 ORDERBY DESCR OPTION A3 ONLY 11 161 0104 08 CABLEASSY PWR 3 18 AWG 240V 98 0 L 70903 ORDERBY DESCR OPTION A4 ONLY 12 161 0167 00 CABLEASSY PWR 3 0 X 0 75 6A 240V 2 5M L S3109 OROERBY DE...

Page 429: ...2430 Service l P U I g m D i ii en ...

Page 430: ...32 6 38 AVERAGE Acquisition Mode 1 1 3 12 3 22 3 43 3 44 A and B Trigger Position 4 22 A Trigger Output 1 12 4 30 A Trigger Source 3 50 A B Trigger Source 4 20 AlB Trigger Generator 3 10 3 43 3 49 3 58 3 82 6 89 AID Conversion 3 11 AID Converter 3 2 3 9 3 11 3 12 3 33 3 36 3 37 3 44 3 45 3 60 3 61 Abort 2 3 6 93 AC Coupling 1 4 1 6 1 9 Ac power input 3 90 Ac power source 1 13 Accelerating potentia...

Page 431: ... rate 3 60 Cooling 1 17 Corrective Maintenance 6 11 COUNT LOAD 3 68 COUNTEN 3 63 Coupling relays 3 42 Index 2 C Clock Driver 3 48 Cabinet finish 1 17 Cabinet removal 6 17 CAL 3 44 CAL 3 44 CAL PATH ON OFF 6 27 6 83 CAL Signal Amplifier 3 31 6 25 CALCLK 3 6 Calibration 3 5 failures 6 2 levels 6 1 constants 1 10 3 5 6 25 6 29 6 79 in the 2430 6 1 sequence 5 1 signal 3 2 3 44 test failure 6 30 Calibr...

Page 432: ...ng 6 44 troubleshooting tree Section 9 DISPSEL 3 64 DLY D HCLK 3 84 3 87 DOT 3 14 3 67 Dot display 3 13 3 14 3 72 DS11 3 60 Dynamic adjustments 6 2 correction 3 32 focusing 3 75 offset 3 5 D A Converter 3 29 DAC gain 3 30 I to E Converter 3 30 Input Shift Register 6 68 multiplexer select 3 30 multiplexers 3 31 offset 3 30 System 3 2 3 42 6 25 System failure 6 41 Data bus 3 5 3 15 clocking 3 10 dis...

Page 433: ...switch scanner 3 28 self diagnostics 6 31 Function blocks 3 8 Functional verification 4 1 Fuse 2 1 Fuse rating 1 13 Index 4 FAIL label 2 3 6 2 6 25 Fast charging 3 54 Fast Clamp 3 81 Fast Ramp 3 54 Fast in slow out 3 45 FASTCLAMP 3 89 Fatal fault 2 3 Feedback 3 93 Field generator 3 82 Field sync generator 3 87 signal 3 82 FIELD1 3 81 FIELD2 3 81 FISO mode 3 9 3 10 3 37 3 45 3 52 6 64 Fixed gain am...

Page 434: ... removal 6 21 regulators 3 8 3 96 Lubrication 6 6 IEEE 488 1980 3 7 3 78 INIT PANEL States table 6 103 Init Shift Regs 6 66 INIT values 6 29 Initial Front Panel Control Setup 4 4 Initial Troubleshooting illus 6 34 Input capacitance adjustment 5 7 Input coupling 3 8 3 41 Input R 1 5 Input Rand C 1 4 1 7 Inspection 6 4 Instruction fetch 3 22 Instrument Cooling 2 3 Instrument Dimensions 1 17 Int adj ...

Page 435: ...up 3 93 Preservation of Calibration 5 1 PRESTART DISPLAY 3 65 PRESTART 3 66 Pretrigger 3 38 3 39 3 50 3 52 Index 6 PA 6 83 Packaged transportation 1 15 Page bit 3 16 OPC mask 6 32 Operating Information 2 3 Operational Problems 6 35 Option A1 A5 7 1 Option 1R 7 1 Option 05 3 7 Electrical Characteristics 1 17 Option 11 7 2 Option Description 7 1 Optional Accessories 7 2 Optional Word Recognizer Prob...

Page 436: ...SAVE Memory keep alive 3 25 SAVE Mode 1 1 6 29 SAVE waveforms 2 4 SAVEACQ 3 11 3 12 3 38 3 40 Scale factors 1 12 3 7 Scale Illumination Board removal 6 24 Schematic diagrams 6 7 diagrams Section 9 SCOPE Mode 6 25 Secondary clocks 3 33 Select 3 33 Selectable Components 6 12 SELF CAL 1 2 2 3 2 4 6 25 6 80 Self Calibration 3 31 5 8 6 1 6 25 6 30 6 32 SELF DIAG 6 25 6 80 Self Diagnostics 6 32 Semicond...

Page 437: ... 50 3 58 3 62 3 63 3 65 3 66 3 67 3 72 3 78 3 80 3 91 3 96 6 2 6 35 6 93 aborts 6 93 access 3 23 halts 6 45 Index 8 Short Pipe Mode 3 9 3 37 3 39 3 41 3 45 3 52 3 53 Short Pipeline Mode 3 10 3 11 3 12 Short term memory 2 4 Shutdown timer 3 95 SIDE 1 3 52 SIDE 3 3 52 Side Board Registers 6 69 removal 6 20 Address Decoder 3 56 3 59 Signal conditioning 3 8 delay 1 4 flow 3 8 outputs 1 11 Single Seque...

Page 438: ...entification illus 3 86 Mode Register 6 53 Troubleshooting 6 99 waveforms illus 3 85 Video rejection 1 19 Video signal processing 3 82 Visual check 6 9 Voiding Calibration 6 2 VOLTS Cursors 1 2 Voltage doubler 3 74 Voltage ranges 1 13 Voltage controlled oscillator 3 84 Voltages and waveforms 6 10 Volts Cursors Register 3 63 6 57 VOLTS DIV display accuracy 4 7 Back Porch Clamp 3 82 3 83 calibration...

Page 439: ...play 3 13 3 63 3 64 4 26 Y Axis alignment 3 78 Y Axis signal 3 72 Y Output 1 12 YON 3 65 YT display 3 13 3 72 3 63 3 64 XY Plotter 3 7 3 80 6 43 XY Recorder interface 3 78 3 80 XYSAMP 3 80 Weight 1 17 WFM HEADERS 6 80 Width 1 17 Word Recognizer Output 1 12 Probe 3 7 3 80 7 2 WORD TRIG OUT 3 7 Word Trigger 3 7 6 41 Control Register 3 80 WPDN 6 52 WR signal 3 15 Index 2430 Service ...

Page 440: ...30 Service Manual Revised Sel2tember 1994 Manual Insert Status DATE CHANGE REFERENCE STATUS 5 AUG 87 M63255 Effective 2 SEP 87 M64144 Effective 2 0CT 87 M64299 Effective 18 0EC 87 C7 1287 Effective 8 SEP 88 C8 0988 Effective 17 NOV 88 C9 1188 Effective 23 0CT 91 M71475 Effective Page 1 of 1 ...

Page 441: ......

Page 442: ...FILM 2B 4K OHM 1 O 125W A10R545 321 0292 00 RES FXD FILM 10 7K OHM 1 0 125W A10R635 321 1332 00 RES FXD FILM 2B 4K OHM 1 0 125W A10R636 321 0292 00 RES FXD FILM 10 7K OHM 1 0 125W A10R640 321 1332 00 RES FXD FILM 2B 4K OHM 1 0 125W A10R641 321 1332 00 RES FXD FILM 2B 4K OHM 1 O 125W A10R642 321 0292 00 RES FXD FILM 10 7K OHM 1 O 125W A10RB50 315 0100 00 RES FXD FILM 10 OHM 5 O 25W A10U350 165 2074...

Page 443: ...AMPS JUt PU SPOTWOB 6 Z AXIS CONTROL a U 2E B12D UB12C 7 5 UB11 SJJY 13 10 TI lj CO 051 r l t if uaroa UB10A I O b II _ r L 07 __ j3 TL074 7 c V tv UB12A 3 Rela UB12S ii 5 __ r 7 tr R80 9 ___ ___ f OB10 i 3 y al r r Ioo 2 r CR8IO 470 J 4 A8 340 5s lJl 1 a __ Re a t 8 9K 47 Add R809 location 6H a 470 n resistor to the base of Q180 as shown below DIAGRAM 0 SYSTEM DAC cont AUX FRONT PANEL Change R142...

Page 444: ...M l 5K OHM l 0 125W TEST SELECT ABLE A10R867 321 0222 00 RES FXD FILM 2K OHM 1 O 125W NOMINAL VALUE 321 0210 00 RES FXD FILM l 5K OHM 1 0 125W TEST SELECTABLE Al0R878 321 0222 00 RES FXD FILM 2K OHM 1 0 125W NOMINAL VALUE 321 0210 00 RES FXD FILM l 5K OHM l 0 125W TEST SELECTABLE A13 670 9749 01 CIRCUIT BD ASSY SIDE A18 670 7280 00 CIRCUIT BD ASSY SCALE ILLUM REPLACEABLE ELECTRICAL PARTS LIST CHAN...

Page 445: ...FILM 220HM 5 0 2W A10W421 131 0566 00 BUS CONDUCTOR DUMMY RES 0 094 OD X 0 225 L CHANGE TO A10R379 321 0387 00 RES FXD FILM 105 0K OHM 1 0 125W A10U350 165 2074 03 MICROCKT HYBRID CCDIDRIVER A10U450 165 2074 03 MICROCKT HYBRID CCDIDRIVER REMOVE A10LR421 108 0284 00 COIL RF FIXED 97 NH REPLACEABLE ELECTRICAL PARTS LIST CHANGES EFFECTIVE SERIAL NUMBER 2430 B014162 Product Group 37 DESCRIPTION Manual...

Page 446: ...tor The square wave should step from 1 V to v Change part b to the following For this step use a PG 506 Calibration Generator Item 2 listed in the equipment required at the begin ning of ADDITIONAL VERIFICATlONS AND CHECK procedure NOTE ADD the following note to step 7 Check Square Wave Flatness Video Option 05 only Page 4 31 EFFECTIVE ALL SERIAL NUMBERS Product Group 37 DESCRIPTION Manua 1Part No...

Page 447: ...eadoutindicatesabout 10 V Change steps 56 and 59 to read as follows Page 4 11 EFFECTIVE ALL SERIAL NUMBERS PRODUCT GROUP 37 DESCRIPTI ON 2430 SERVICE Product COMMITTED TO EXCELLENCE Change Ref erence C8 0988 Manua1 Part Number 070 4917 00 Oa t e 09 08 88 MANUAL CHANGE INFORMATION ...

Page 448: ...OFF OFF Add the following front panel setup to step 6 Page 4 30 EFFECTIVE ALL SERIAL NUMBERS PRODUCT GROUP 37 DESCRIPTION Product 2430 Service Change Reference C9 1188 Manual Part Number 070 4917 00 CHANGE INFORMATION Date 11 17 88 MANUAL 1ektronix ...

Page 449: ...MOS N CH 500V S OA A16R324 315 0750 00 RES FXD FILM 750HM 5 0 25W A16R624 315 0750 00 RES FXD FILM 750HM 5 0 25W A17 670 9748 02 CIRCUITBD ASSY HVPOWERSPLY A17R162 313 1272 00 RES FXD FILM 2 7KOHM 5 0 2W REPLACEABLE ELECTRICAL PARTS LIST CHANGES EFFECTIVESERIAL NUMBERS B014161 and above Product Group 37 DESCRIPTION 070 4917 00 Manual Part No Product 2430 Service Change Reference M71475 Date 23 0CT...

Page 450: ......

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