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Tektronix 2445A, Service Manual

The Tektronix 2445A, renowned for its reliability and precision, is a top-notch oscilloscope perfect for professionals and enthusiasts. Unlock the full potential of this exceptional device by downloading its comprehensive Operator's Manual for free from manualshive.com, ensuring you have all the necessary information at your fingertips.

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Summary of Contents for 2445A

Page 1: ...INGI THE FOLLOWING SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL ONLY TO AVOID PERSONAL INJURY DO NOT PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO REFER TO OPERATORS SAFETY SUMMARY AND SERVICE SAFETY SUM MARY PRIOR TO PERFORMING ANY SERVICE ...

Page 2: ...y form without the written permission of Tektronix Inc Products of Tektronix Inc and its subsidiaries are covered by U S and foreign patents and or pending patents TEKTRONIX TEK SCOPE MOBILE and are registered trademarks of Tektronix Inc Printed in U S A Specification and price change privileges are reserved ...

Page 3: ... 2 CRT ADJUSTMENTS 5 4 Page DAC REF CH 1 AND CH 2 INPUT CAPACITANCE AND VERTICAL READOUT JITTER ADJUSTMENTS 5 7 AUTOMATIC CALIBRATION CONSTANTS HORIZONTAL AND VERTICAL GAIN CENTERING AND TRANSIENT RESPONSE ADJUSTMENTS 5 10 CAL 01 HORIZONTAL 5 10 CAL 02 VERTICAL 5 14 CAL 03 TRIGGERING 5 15 CAL 04 CH 2 DELAY ENABLE DISABLE 5 16 CAL 05 Set HRS ON and PWR ON OFF CYCLES 5 17 CAL 06 VERTICAL TRANSIENT R...

Page 4: ...CEMENT INSTRUCTIONS 6 24 SECTION 7 OPTIONS INTRODUCTION 7 1 POWER CORD OPTIONS 7 1 OPTION 1R 7 1 OPTION 01 7 1 OPTION 05 7 2 OPTIONS 06 and 09 7 2 OPTION 10 7 2 OPTION 11 7 2 ii SECTION 8 2445A REPLACEABLE ELECTRICAL PARTS SECTION 9 2455A REPLACEABLE ELECTRICAL PARTS SECTION 10 DIAGRAMS ACRONYM DICTIONARY SECTION 11 2445A REPLACEABLE MECHANICAL PARTS SECTION 12 2455A REPLACEABLE MECHANICAL PARTS ...

Page 5: ...Cable Removal 6 26 Power Switch Push Button Disassembly 6 31 Color codes for resistors and capacitors Semiconductor lead configurations Locating components on schemcatic diagrams and circuit board illustrations Instrument block diagram AS Control board AS Front Panel board A1 Main and AS Scale Illumination boards A15 Holdoff board A14 Dynamic Centering board A4 Readout board A9 2455A High Voltage ...

Page 6: ... 1 O Delayed Sweep Delta Time Accuracy 4 27 4 11 Data Setup Time Checks 4 40 4 12 Data Hold Time Checks 4 41 4 13 Minimum Clock Pulse Width Checks 4 41 4 14 Delay From Selected Edge to WORD RECOG OUT Checks 4 42 4 15 Word Recognition Delay 4 42 5 1 Power Supply Voltage and Ripple Tolerances 5 3 5 2 Horizontal Timing 5 12 5 3 Horizontal Timing 5 13 5 4 Vertical Calibration Signals 5 14 5 5 Vertical...

Page 7: ...ductor and ground A protective ground connection by way of the grounding conductor in the power cord is essential for safe operation Grounding the Product This product is grounded through the grounding conductor of the power cord To avoid electrical shock plug the power cord into a properly wired receptacle before making any connections to the product input or output terminals A protective ground ...

Page 8: ...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 vi Disconnect power before removing protective panels soldering or replacing components Power Source This product is intended to operate from a power source that does not apply more than 250 volts rms between the supply conductors or between either s...

Page 9: ...etups The SETUP buttons operate all instrument functions including the extended function options Direct on screen readouts of time measurements volt age measurements scale factors trigger levels and auxili ary information also save time and improve operator confidence The instruments are shipped with the following stan dard accessories 2 Probe packages 1 Snap lock accessories pouch 1 Zip lock acce...

Page 10: ...ninverted Continuously variable between VOLTS DIV settings Extends deflection factor to 12 5 V division Frequency Response Bandwidth is measured with a leveled low distortion þÿ50 source sine wave generator terminated in 50 þÿ The reference signal amplitude is set at the lesser of 6 divisions or the maximum leveled amplitude Bandwidth with probe Is checked using a probe tip to GR 017 0520 00 termi...

Page 11: ...nd C 1 þÿM Resistance 1 þÿM 0 5 8 Capacitance 15 pF 2 pF 8 Maximum Input Voltage DC AC or GND Coupled 400 V de peak ac 800 V p p ac at 10 kHz or less 8 Input R 50 þÿ Resistance 50 þÿ 1 8 VSWR 1 3 1 for de to Nominal Bandwidth Maximum Input Voltage 5 V rms averaged for 1 second 50 V peak Cascaded Operation Channel 2 Vertical Signal Output into Channel 1 input DC coupled using a 50 þÿ RG 58C U coaxi...

Page 12: ...eed through terminator 011 0049 01 3 dB Bandwidth Using standard accessory probe 2455A 15 C to 35 C De to 250 MHz 15 C to 15 C and 35 C to De to 200 MHz 8 55 C 2445A De to 150 MHz 4 7 dB Bandwidth Using þÿ50 external termination 2455A 15 C to 35 C De to 250 MHz 8 15 C to 15 C De to 200 MHz and 35 C to 55 C 8 2445A De to 150 MHz Step Response Rise Time Calculated from Tr 0 35 BW 2455A 1 4 ns 2445A ...

Page 13: ...µS to 2 µs div range the switching rate is 2 5 MHz 0 2 Otherwise the switching rate is 1 MHz 0 2 The display cycle rate equals the chop switching rate divided by the number of channels displayed The chop switching rate is modulated slightly to minimize waveform breaks with repetitive signals 8 TRIGGERING 0 35 division from de to 50 MHz increasing to 1 0 division at 300 MHz and 1 5 divisions at 500...

Page 14: ...55A 50 ps with 5 divisions of 250 MHz at 1 ns division 2445A 100 ps with 5 divisions of 150 MHz at 1 ns division LEVEL Control Range CH I or CH 2 SOURCE 18 X VOLTS DIV setting a CH 3 or CH 4 SOURCE 9 X VOLTS DIV setting LEVEL Readout Accuracy For triggering signals with transition times greater than 20 ns CH 1 or CH 2 SOURCE 15 C to 35 C Within 3 of setting 3 of p p signal 0 2 division 0 5 mV 0 5 ...

Page 15: ...10 to 25 times the minimum holdoff SLOPE Selection Conforms to trigger source waveform or ac power source waveform HORIZONTAL DEFLECTION SYSTEM A Sweep Time Base Range 500 ms div to 10 ns div in a 1 2 5 sequence of 24 steps X10 MAG extends maximum sweep rate to 1 ns div B Sweep Time Base Range 50 ms div to 10 ns dlv In a 1 2 5 sequence of 21 steps X1 OMAG extends maximum sweep rate to 1 ns div Tim...

Page 16: ...setting with Sweep Delay a Sweep Delay Range 0 to 9 95 times the A SEC DIV setting from 500 ms to 20 ns A Sweep triggering event is observable on B Sweep with zero delay setting for A SEC DIV settings 50 µs or faster a Delay Jitter Within 0 004 one part or less in 25 000 of the maximum available delay plus 50 ps a Horizontal POSITION Range Start of 1 ms per division sweep can be positioned from ri...

Page 17: ...ically and 10 major divisions horizontally with auxiliary markings Adequate to align trace with the center horizontal graticule line Z AXIS INPUT Positive voltage decreases intensity 2 V blanks a maximum intensity trace 2 V modulates a normal intensity trace 9 þÿk 10 8 25 V peak 25 v P P ac at 10 kHz or less SIGNAL OUTPUTS With A SEC DIV set to 1 ms 0 4 V 1 into a þÿ1M load 0 2 V 1 5 into a þÿ50 l...

Page 18: ...250 V AGC 3AG Fast blow or 1 6 A 250 V 5 X 20 mm Quick acting a Maximum Power Consumption fully optioned 120 watts 180 VA a instrument Primary Circuit Dielectric Voltage Withstand Test 1500 V rms 60 Hz for 10 seconds without breakdown a Primary Grounding Type test to 0 1 þÿ maximum Routine test to check grounding continuity between chassis ground and protective earth ground a Performance requireme...

Page 19: ...f A Trigger and B Trigger 150 MHz 3 3 ns For Count Delay by Events and Logic Trigger Functions Excluding Word Recognizer 1 5 divisions 0 75 division 4 0 divisions 2 0 divisions FREQUENCY RANGE LSD 1 Hz 100 nHz 10 Hz 1 þÿ Hz 100 Hz 10 þÿ Hz 1 kHz 100 þÿ Hz 10 kHz 1 mHz 100 kHz 10 mHz 1 MHz 100 mHz 10 MHz 1 Hz 100 MHz 10 Hz 150 MHz 100 Hz Upranges at 100 of full scale downranges at 9 of full scale D...

Page 20: ...es at 9 of full scale Full scale corresponds to the value given in the Range column The maximum displayed value for any range is the Range value minus the LSD value Resolution TBE x Period LSD 1 4 X T IE N Twice per second or twice the period of the input signal whichever is slower TOTALIZE 9999999 Twice per second or once per event whichever is slower DELAY BY EVENTS Maximum Event Count 4194303 M...

Page 21: ... mode add 100 ns for probe delay in asynchronous mode add 200 ns for probe delay For intervals within 70 ns to 10 times the A SEC DIV Setting LSD 10 ppm x measured interval TJE A Trigger Level Error B Trigger Level Error 0 5 ns 1 If the A and B Sweeps are triggered from different channels add 0 5 ns for channel to channel mismatch When the A Sweep is triggered by the Word Recognizer in synchronous...

Page 22: ...itter Reference Trigger Signal Jitter Delta Trigger Signal Jitter A Sweep Trigger Signal Jitter 1 2 Reference Trigger Signal Jitter ens enREF SRREF 0 for Frequency mode ens scope noise in div 0 05 div for HF REJ trigger coupling 0 1 div for DC trigger coupling 5 mV to 5 V sensitivity 0 15 div for DC trigger coupling 2 mV sensitivity enREF reference signal rms noise in div Delta Trigger Signal Jitt...

Page 23: ...times the A SEC DIV setting LSD 0 01 X B Time Div C 10 ppm X A SEC DIV 10 ppm x measured interval 50 ps TJE 8 If CH 3 or CH 4 is one channel of a two channel measurement add 0 5 ns for channel to channel delay mismatch LSD ItrREF troELT Id TJE 0 0005 div X 1 SRREF 1 SRDELT 10 ppm X A SEC DIV 10 ppm x measured interval 50 ps If A and B sweeps are triggered from different channels add 0 5 ns for cha...

Page 24: ...te 10 ns to 2 µs 20 kHz 10 ns to 2 µS 200 Hz to 20 kHz 5 µS to 200 µS 200 Hz 10 ns to 200 µs 200 Hz 500 µs to 5 ms Any 10 ms to 50 ms Any 100 ms to 500 ms Any 1 16 Table 1 3 Resolution Selections Least Digit See Table 1 4 10 ps 100 ps 1 ns 100 ps 1 ns 1 ns 10 ns 100 ns 1 µS Table 1 4 Resolution Selections Least Digit 100 ps 1 ns 1 ns 10 ns 10 ns 100 ns 1 µS N for Average See Table 1 4 106 10 4 100...

Page 25: ...m Coincidence Between Data Inputs D0 D15 and 0 Resulting in a Trigger Maximum Coincidence Between Data Inputs D0 D15 and 0 Without Producing a Trigger Delay from Input Word Coincidence to Word Out Input Voltages Minimum Input Voltage Maximum Input Voltage Maximum Input Low Voltage Minimum Input High Voltage WORD RECOG OUT High Low Input High Current Input Low Current Performancerequirement not che...

Page 26: ...ents 10 2 kg 22 4 lb 12 0 kg 26 44 lb 9 3 kg 20 5 lb 12 8 kg 28 2 lb 17 6 kg 38 8 lb 160 mm 6 29 in With Feet and Accessories Pouch with or without 243 mm 25 4 mm 9 56 in 1 0 in Options 06 and 09 Width with handle 338 mm 13 31 in Depth With Front Panel Cover 434 mm 17 1 in With Handle Extended 508 mm 20 0 in Cooling Forced air circulation Finish Tek Blue vinyl clad material on aluminum cabinet Con...

Page 27: ...C equipment with the rack mounting rear support kit installed Rack mounted instruments will be capable of meeting or exceeding the requirements of Tektronix Standard 062 2853 00 class 5 15 C to 55 C For a rack mounted instrument ambient temperature should be measured at the instrument s air inlet Fan exhaust temperature should not exceed 65 C 62 C to 85 C To 15 000 feet Maximum operating temperatu...

Page 28: ...0 Packaged Transportation Vibration Meets the limits of the National Safe Transit Assn test procedure 1A B 1 excursion of 1 inch p p at 4 63 Hz 1 1 g for 30 minutes Tektronix Standard 062 2858 00 EMI Electro magnetic Interference Meets MIL T 28800C MIL STD 461 B part 4 CE 03 and CS 02 part 5 CS 06 and RS 02 and part 7 CS 01 RE 02 and RS 03 limited to 1 GHz VDE 0871 Category B Part 15 of FCC Rules ...

Page 29: ... 25 40 13 31 338 6 29 60 Dimens i ons are Specification 2445A 2455A Service 268 15 60 l 396 20 00 508 16 88 429 inches mm Figure 1 1 Dimensional drawing 5 53 141 10 68 271 6 33 161 11 63 296 11 88 302 l 6019 01 1 21 ...

Page 30: ... the fuse holder 2 Verify that the fuse is of the type listed on the back of the instrument Then install the proper fuse and reinstall the proper fuse holder cap The two types of fuses listed are not directly inter changeable they require different types of fuse caps Included in the accessory pouch is a 5x20 mm fuse holder cap for use with 1 6 A 250 V 5x20 mm IEC 127 fuses POWER CORD This instrume...

Page 31: ...pplications To operate the instrument after a power up test failure press the A B TRIG button or A B MENU Even if the instrument then functions for your particular measurement requirement it should be repaired by a qualified service technician at the earliest convenience Additional information on the power up tests and troubleshooting may be found in the Mainte nance section of this manual Consult...

Page 32: ...ption Plug Type U S U S Std 120V EURO A1 220V LIK8 A2 240V Australian A3 240V North A4 American 240V Switzerland A5 220V A A type C fuse is also Installed inside the plug of the Option A2 power cord Reterence Standards Abbreviations ANSI American National Standards Institute AS Standards AHociation of Australia BS British Standards Institution CEE lnternational Commission on Rules tor the Approval...

Page 33: ...LSE state is referred to as LO The specific voltages which constitute a HI or a LO state vary between individual devices For specific device characteristics refer to the manufacturer s data book Hybrids Some of the circuits in this instrument are implemented in hybrid devices The hybrids are specialized electronic devices combining thick film and semiconductor technolo gies Passive thick film comp...

Page 34: ...CH 4 SI CH 3 CH 3 SIS ANS CH 3 IN CH PREAMP 0 r M 4 TRIS PICKru F CH 3 TRIG PICKOFF CH 3 GAIN AUXILIARY CH 4 SAIN CONTROL RESISTER IN 0 CH 2 CH 2 OUT ATTENUATOR CH 2 ANO PAEAMP CH 2 SI MA LATCH CH 2 IN RELAYS 0 0 CH 2 TAI PICKOFF AU t co co CH 1 ATTENUATOR CH 1 SIS ANO MA LATCH CH 1 RELAYS PAEAMP CH 1 TRI PICKOFF CH 1 IN 0 0 A12 LOW VOLTAGE LINE 160 Htl POWER SUPPLY 0 TO ALL CIRCUITS Figure 3 1 In...

Page 35: ...XT ZIN TRACE SEP DISPLAY HORIZONTAL SELECTS CI SEQUENCER SWEEP SATES Z AXIS DC 0 HOLDOFF OUT RESTORER DLY SELECT 0 I s 2 Z AXIS 21 V A SATE I 0 I AMPLIFIER 1 9KV CRT B SATE 0 I CD J l J MW iil a 2 1 1 II II A GATE A TRIS SWEEP 2 I 0 HORIZONTAL CD A SWEEP AMPLIFIER HORIZ SIS i B SWEEP 0 TRIGGERS I DELAY 0 GATE HIGH VOLTASE POWER SUPPLY 0 7 B co SWEEP f TRIG 0 B GATE CD HORIZONTAL OUT X 6017 27 Figu...

Page 36: ...from the processor is sent to the Display 3 4 Sequencer a specialized integrated circuit which responds by setting up the various signals that control the stages handling real time display signals The controlled stages are stepped through a predefined sequence that is deter mined by the control data Typically as the sequence is being executed the Display Sequencer will be changing vertical signal ...

Page 37: ...ulting display may be of waveforms alphanumeric readout or a combination of both DETAILED CIRCUIT DESCRIPTION INTRODUCTION The following discussion provides detailed information concerning the electrical operation and circuit relationships of the instrument Circuitry unique to the instrument is described in detail while circuits common in the electronics industry are not The descriptions are accom...

Page 38: ... When the processor has completed all the other power down tasks it finally sets the PWR DOWN signal HI via U2310 diagram 2 3 6 This signal is applied to inverter U2650C at pin 11 Pin 9 of U2650C goes LO and immediately pulls pin 2 of Reset Generator U2240 LO to prevent a reset to the processor Reset Generator U2240 immediately switches state to assert the RESET signal to the processor The RES sig...

Page 39: ...ssor go HI the selected ROM is enabled and the data from the selected address location is read from the ROM Address decoding is performed by a programaoIe array HEX ADDRESS 0000 07FF 0800 OFFF 1000 7FFF 8000 FFFF DECODED BY U2250 RAM U2460 ADDRESS DECODING U2550 RESERVED FOR OPTIONS ROMS U2160 AND U2260 RAM U2460 I o HEX ADDRESS 0800 083F 0840 087F 0880 08BF OSCO OBFF 0900 093F 0940 097F 0980 09CO...

Page 40: ... operating instructions firmware used to control processor and thus oscilloscope operation Addresses from the Microprocessor that fall within the top 3 8 32K bytes of addressable space cause one of the two read only memory integrated circuits to be enabled See Address Decode description Instructions are read out of the enabled ROM or PROM IC from the address location present on its 16 address inpu...

Page 41: ... 19 LO to allow the counter to start again At this time the Micropro cessor sets analog control voltages and reads trigger status from the Display Sequencer diagram 5 When this is completed it reverts back to the mainline program Theory of Operation 2445A 2455A Service In addition to the analog control and trigger status update that occurs with each interrupt on every fifth inter rupt cycle the Mi...

Page 42: ...ssor until the instrument is powered down and then turned back on The resistors in series with the input lines to U241 Oare current limiting resistors that protect the CMOS eight line data selector from static discharges The resistors con 3 10 nected from the input lines to the 5 V supply are pull up resistors for the front panel column lines Digital to Analog Converter DAC DAG U2101 is used to se...

Page 43: ... settings are not lost Then when Theory of Operation 2445A 2455A Service power is next applied the instrument will power up to the same configuration as when the power was last removed assuming the settings of the non digitized pots and switches remain the same The Front Panel Controls also allow the user to initiate and direct the diagnostic routines and when enabled the calibration routines prog...

Page 44: ... LATCHES U2301 ROW 1 AND U2201 As the initial pot settings are determined a digital representation of each value is stored in memory The pro cessor then checks each pot against its last known value to determine if a pot has moved If a pot is detected as moving the processor executes a routine that converts the movement displacement from last set value into a corresponding control voltage When prod...

Page 45: ...pe status and operating mode by backlighting front panel nomencla ture A 48 bit status word defining the diodes to be illuminated is generated by the processor and then serially clocked into the six LED Status Registers U3001 U3002 U3003 U3004 U3005 and U3006 The registers hold the selected diodes on until the next update Whenever the processor detects that a front panel control has changed Theory...

Page 46: ...collector voltage of the transistor turning on harder is fed through the bias 3 14 diode again either CR130 or CR131 to further turn off the opposite transistor This action results in one transistor being fully on and the other one being fully off The saturated transistor sources current through the two stacked relay coils to the LO output of either U140 or U150 current sink to close the selected ...

Page 47: ...als present are inverted and applied to a common mode point between R451 and R453 to cancel the signals from the differential output A filter network composed of LR 180 and the built in circuit board capaci tor 5 6 pF reduces trigger noise susceptibility Trigger sig Theory of Operation 2445A 2455A Service nals for options are obtained from J100 The Channel 1 input signal used to provide the horizo...

Page 48: ...the voltage on their collectors moves closer to ground potential This increases the current through the scale illumination lamps to make them brighter and produces some negative feedback to the base circuit through the SCALE ILLUM pot Negative feedback stabilizes the base drive to U130D and U130E to hold the illumination level constant at the selected setting of the SCALE ILLUM con trol During SGL...

Page 49: ...on 2445A 2455A Service Microprocessor via the TSO trigger status output line when clocked by the TSS trigger status strobe signal INTENSITY CONTROL The readout intensity display intensity and display intensity compensation are controlled by the BRIGHT output level DISPLAY BLANKING Display blanking for CHOP VERTICAL MODE Readout transitions and front panel control changes is controlled by the BLANK...

Page 50: ...the crt drive signal by the Z Axis Amplifier during the concurrence of the SGAZ and SGBZ sweep gate A and B z axis signals The readout intensity ROI level controlled from the front panel READOUT INTENSITY pot via MUX U2530 and sample and hold U2630A and C2732 The Micropro cessor increases readout intensity when the pot is rotated 3 18 Type of Display X Y A Sweep B Sweep Readout Table 3 1 Intensity...

Page 51: ...tor timing signal CT from the Display Sequencer is generated by an internal counter The counter divides the 5 MHz clock input at pin TC timing clock by a value that is a function of sweep speed The resulting square wave output signal drives the Calibrator circuit For ease of sweep rate verification the Calibrator signal provides a display of five complete cycles on the crt at sweep speeds from 100...

Page 52: ...trigger level B signal at pin 37 when trigger B Sweeps are required When the proper trigger signal is is detected U500 outputs a trigger gate TGA or TGB to the appropriate sweep circuit to initiate that sweep When an A Sweep is initiated the trigger status line TSA trigger status A U500 pin 20 goes LO to signal the Display sequencer that a trigger has occurred Until the sweep is completed the TGA ...

Page 53: ...t mirror multiplication factors If the SEC DIV VAR control is out of the calibrated detent position the processor will decrease the A TIM REF voltage from the maximum in detent value by an amount proportional to the position setting of the VAR control At the maximum fully counterclockwise setting of the VAR control the ITREF current is one third that of the normal in detent current For A Sweep hyb...

Page 54: ...red as a diode is forward biased shunting bias current away 3 22 from 0550 keeping it turned off When transistor 0550 is off the front panel CAL OUT connector is pulled to ground potential through R558 setting the lower limit of the CALI BRATOR output signal As the CAL signal goes from LO to HI the emitter of U550D is pulled HI to reverse bias U550C Bias current for 0550 is established and the tra...

Page 55: ...e ground reference level is applied to the CHS input of Channel Switch U400 via R49S and R412 The inverting amplifier circuit composed of U47SA U47SB U47SD and associated components inverts the readout vertical signal for application to the CHS input The amplifier is an inverting unity gain configuration with transistors U47SA and U47SB connected as an emitter coupled pair The base of U47SA is ref...

Page 56: ...ed HI While BF is HI the dynamic range of Vertical Output Amplifier U600 is reduced and all deflected traces will be held to within the vertical limits of the crt graticule 3 24 Also the activation of the BEAM FIND switch is detected by the microprocessor during its normal Front Panel Switch Scanning When detected the generates a User Request SRO if option 10 is installed OUTPUT PROTECTION CIRCUIT...

Page 57: ...e applied to the 2 Axis Amplifier on pins 4 and 3 These signals turn the beam current on and off for the related displays and when used in conjunction with the BLANK signal on pin 5 enable the sweeps to be blanked while still allowing the Readout circuitry to blank and unblank the crt for the readout displays Control signalsapplied to U950 pin 48 pin 2 and pin 1 HSA B and TXY respectively switch s...

Page 58: ... particular character in the readout The coordinates are referenced to the lower left corner of the character dot matrix Each individual data byte in the block of ROM addresses con tains both the X and the Y coordinates for one dot of the associated character 3 26 Blanking Affected By Typical Display BLANK Readout BLANK SGAZ SGBZ Delayed Sweep BLANK SGAZ Main Sweep BLANK X Y BLANK SGAZ X Y To disp...

Page 59: ...RAM With U2865 loaded with the mode data a final ROS1 strob strobe clocks the eighth bit of charac ter data from U2960 to U2860 on the negative edge and the positive edge of the strobe clocks the eighth character address bit unused bit into U2960 With control bit 0 4 from U2865 LO the outputs of U2860 are enabled and the eight bits of character data CD0 through CD7 are written in parallel into the...

Page 60: ...sses each RAM loca tion the counter also determines the character screen location a sequence of dot display cycles is performed in which the individual dots that make up the character are 3 28 positioned on the crt and turned on The EOCH end of character signal applied to U2855A prevents the counter from incrementing until all dots of the character have been displayed As the last dot of a characte...

Page 61: ...lumns across the crt while three data bits from Character ROM U2930 DD0 through DD2 horizontally position the dots within the eight by Theory of Operation 2445A 2455A Service sixteen character matrix see Figure 3 6 The eight bits of position data are written to the per manently enabled DAC each time a new dot is requested by the Dot Cycle Generator The GETDOT signal applied to pin 11 Chip Select e...

Page 62: ...voltage cursors Horizontal positioning voltages for one segment of the cursor are routed from Horizontal DAC through analog 3 30 X L H L H X Mode Horizontal Vertical Selected Signal Signal Character Display Horiz DAC Vert DAC Vert Cursor 1 Horiz DAC DLY REF 1 Horiz Cursor 1 DLY REF 1 Horiz DAC Vert Cursor Q Horiz DAC CURSOR Q Horiz Cursor Q CURSOR Q Horiz DAC Return to character display Mode switc...

Page 63: ...U2850A pin 5 to the Q output pin 9 of flip flop U2850B This HI applied to the Theory of Operation 2445A 2455A Service S1 input pin 10 of prioritizer U2985 sets it up to incre ment with the next REFRESH clock applied to its clock input pin 11 The LO Q output of U28508 pin 8 applied to the reset input of U2850A resets the latched ROS FRAME request See Figure 3 8 for an illustration of the timing seq...

Page 64: ...nt with the next REFRESH clock At the same time that the prioritizer decrements the changed level of the CA3 bit is clocked through U2950A and causes the output of exclusive OR gate U2990A to return LO until the next subframe is completed If the subframe is completed SO on U2985 goes HI when a ROSFRAME request is also pending S1 is also 3 32 HI U2985 does a parallel load reloading the present prio...

Page 65: ...eep combinations are displayed once followed by a complete readout frame for the purpose of crt photography Theory of Operation 2445A 2455A Service Dot Cycle Generator The Dot Cycle Generator composed of shift register U2995 flip flop U2880B and associated gating circuitry generates time related signals for the following purposes unbJanking the crt to display a dot requesting the next byte of dot ...

Page 66: ...ROA signal to the Display Sequencer via flip flop U2950B Readout request generation is described in the Dot Start Governor discussion 3 34 HIGH VOLTAGE POWER SUPPLY AND CRT The High Voltage Supply and CRT circuit diagram 8 provides the voltage levels and control circuitry for opera tion of the cathode ray tube crt The circuitry consists of the High Voltage Oscillator the High Voltage Regulator the...

Page 67: ...forward Theory of Operatlon 2445A 2455A Service biased diode connected to ground at pin 9 of the module charging path is through the diode so stored charge is negative The following negative half cycle adds its ac component 950 V peak to this stored de value and pro duces a total peak voltage of 1900 V across the capaci tor This charges the 0 006 µf storage capacitor con nected across the two doub...

Page 68: ... is adjusted during use of the instrument Z AXIS OUTPUT VZ OUT BV TO 73V BV AC DRIVE C1950 FROM PIN 7 OF T1970 ov 150V CR1990 15V 42V 6RID BIAS 42V The convergence strengths of the quadrapole lenses also dynamically track changes in the display intensity The VO OUT signal applied to the crt at pins 5 and 6 is exponentially related to the VZ OUT intensity signal driv ing the crt control grid and in...

Page 69: ...ing voltage on pin 3 and after about ten minutes for all practical purposes it reaches 15 V As the output voltage slowly increases the charging current through R1992 causes the Grid Bias voltage to gradually lower about ten volts from its power on level The charge on C1990 dissipates slowly therefore if instrument power is turned off and then immediately back on again the out put of U1890A will st...

Page 70: ...ed with changing crt sig nal levels LEVEL SETTING CIRCUITRY Operational amplifier U1890B transistor 01980 and associated components 3 38 form an edge focus circuit that sets the voltages on the elements of the third quadrapole lens The positive lens element is set to its operating potential by Edge Focus adjustment pot R1864 via R1897 This voltage is also divided by R1893 and R1982 and applied to ...

Page 71: ...and T1060 through CR1050 Theory of Operation 2445A 2455A Service PREREGULATOR CONTROL POWER SUPPLY Since the Preregulator Control network controls supply startup and preregulates the secondary supplies an independent power source must be established for it before any of the other power supplies will operate The independent power supply for the control circuitry is composed of 01021 01022 and assoc...

Page 72: ...TRANSISTOR DRIVE 01060 DRIVE 01070 DRIVE LOW COMING UP Drive circuit Once the Inverter Drive stage is operating the normal switching current through T1050 maintains the required charge on C1066 The Inverter Drive power sup ply is discussed later in this description Dead Time Comparator U1 is referenced at approxi mately 0 1 V above the ground level at pin 4 established when C1034 becomes fully cha...

Page 73: ...1060 1 0 1V FB Theory of Operation 2445A 2455A Service These large current pulses over the period of a few cycles will increase the charge on the storage capacitors on the secondary side of the transformer and will reduce the current demand on the inverter output transformer As the demand increases the voltage across the primary winding will increase until it reaches the point where the two inputs...

Page 74: ... is sufficient to properly tum on one of the current switching transistors either 01060 or 01070 for the first cycle After that the alternating drive signals continue to induce current into the 3 42 secondary winding of T1050 to provide operating power as long as the instrument is turned on The current rectified by the diode bridge and stored on capacitor C1066 is regulated down to the required vo...

Page 75: ...1 is pulled HI indicating that the Preregulator Control circuit should now be functioning properly POWER DOWN When instrument power is turned off the voltage across the primary storage capacitors C1021 Theory of Operation 2445A 2455A Service and C1022 begins to fall as the capacitors discharge As the voltage drops the bias current through R1027 to the base of 01029 also drops until the bias voltag...

Page 76: ...ns on a portion of the base drive current to 01221 is shunted away by 01223 This reduces the base drive current and thus the output current of series pass transistor 01220 3 44 II 42 V Regulator The circuit configuration and operation of the 42 V Regulator is identical to that of the 82 V Regulator Current limiting of the 42 V supply occurs at approxi mately 400 mA Base drive to Darlington pair 01...

Page 77: ...V digital power supply line from the rectifiers and provides feedback to the Preregulator Control IC U1030 via opto isolator U1040 both on diagram 9 The feedback is used to slightly vary the voltage sensing characteristics of the Preregulator Control circuitry The feedback FB signal slightly varies the voltage to the Inverter output transformer and holds the output of the 5 V secondary windings at...

Page 78: ...nect the shutdown circuitry for troubleshooting purposes POWER DISTRIBUTION Schematic diagrams 11 and 12 illustrate the power dis tribution of the instrument The connections to the labeled 3 46 I o boxes representing the hybrids and ICs show the power connections to each device while connections to non power lines are shown by the component and schematic number Power supply decoupling is done with...

Page 79: ...SELECTOR switch is set for the ac power source being used see Preparation for Use in Section 2 Connect the instrument to be checked and the test equipment to an appropriate power source Turn the instrument on and ensure that no error message is displayed on the CRT If an error message is present have the instrument repaired or calibrated by a qualified service technician before performing this pro...

Page 80: ...s to 5 sin a 1 2 5 sequence Check horizontal timing TEKTRONIX TG 501 Marker accuracy 0 1 For CTT and CTT CTT requires TG501 A checks accuracy 0 00005 option 01 7 Oscilloscope with 1OX Bandwidth 150 MHz 250 MHz General Check power supply TEKTRONIX Standard Accessory Purpose ripple and output 2445N2455A Probe signals Troubleshooting 8 T Connector 2 Impedance 50 þÿ Connectors BNC Signal interconnecti...

Page 81: ...djust variable resistors TEKTRONIX Part Alignment Tool and capacitors Number 003 0675 00 21 1X Probe Attenuation 1X Bandpass 20 MHz Check power supply TEKTRONIX P6101 01 ripple 22 Normalizer Input resistance 1 þÿM Input Check input TEKTRONIX Part capacitance 15 pf capacitance Number 067 0537 00 23 Tunnel Diode Pulser Rise time 125 ps or less Check transient TEKTRONIX Part response Number 067 0681 ...

Page 82: ... 4 4 1 þÿM GND 10 ms knob in In detent Off Fully CW 50 þÿ BNC Termination Item 12 Subminiature Probe Tip to BNC Adapter Item 13 BNC Female to BNC Female Adapter Item 14 BNC Female to Dual Banana Adapter Item 15 2X Attenuator Item 16 5X Attenuator Item 17 10X Attenuator Item 18 Delta þÿ t and þÿ v TRACKING TRIGGER HOLDOFF LEVEL SLOPE A B TRIG MODE SOURCE COUPLING Off press and release until associa...

Page 83: ...y pressing the upper CH 1 Input Coupling button o VERIFY The CH 1 1 þÿM DC indicator is lit and the readout display no longer indicates 50 þÿ OVERLOAD p Set the VERTICAL MODE buttons to display Chan nel 2 and repeat parts a through o to verify 50 þÿ OVER LOAD protection for Channel 2 Performance Check 2445A 2455A Service 2 Check CH 1 and CH 2 Low Frequency AC Coupling a Set NOTE Select channels to...

Page 84: ...Momentarily press and hold both the CH 1 and CH 2 upper Input Coupling buttons until a moving dot display replaces the normal signal This performs a DC Balance of CH 1 and CH 2 and the readout displays DC BALANCE IN PROGRESS c When the signal and readout displays automatically return to normal set the CH 1 and CH 2 Input Coupling to 1 þÿM DC d Connect the Calibration Generator to the CH 1 OR X inp...

Page 85: ... stopped the word SET will disappear and the readout delay value as measured by the CTT will appear This is normal operation and not cause for concern Performance Check 2445A 2455A Service 15 Adjust Δ REF OR DLY POS control for a delay reading of 0 000 ms 16 Set the TRIGGER LEVEL control to the most positive voltage that produces an intensified point on the waveform display for each position of SL...

Page 86: ...aticule line m CHECK Signal display amplitude is 1 9 to 2 1 divisions Table 4 2 Accuracy Limits CH 1 CH 2 INVERT and Delta Volts Readouts VOLTS Stand Vertical Delta Volts Limits of Trigger LEVEL DIV ard Deflection Readout Readout Switch Ampli Accuracy Accuracy Setting tude 2 in limits DC Coupling NOISE REJ Coupling CH 1 Input divisions 1 25 03 div and Level Peak Peak Peak Peak CH2 2mV 10 mV 4 90 t...

Page 87: ...brated detent position s Repeat parts e through p for CH 2 t Return the CH 2 VOLTS DIV VAR control to the cali brated detent position Performance Check 2445A 2455A Service u Rotate the REF OR DLY control CCW until the cursor stops moving v CHECK Cursor is aligned with the bottom graticule line within 0 2 division w Rotate the control CW until the cursor stops moving x CHECK Cursor is aligned with ...

Page 88: ...arts 4 through 23 of part e jj Set the Calibration Generator output level and VERT ICAL POSITION controls for a 2 division display vertically centered on the graticule kk Set the VERTICAL POSITION control to align the top edge of the display with the top graticule line II CHECK Signal display amplitude is 1 9 to 2 1 divisions mm Set the VERTICAL POSITION control to align the bottom edge of the sig...

Page 89: ...eadout displays CH 2 DLY DISABLED instead of CH 2 DLY TURN 1 the delay matching feature has been disabled and the remainder of this subsection cannot be performed In this case proceed to subsection 5 below Performance Check 2445A 2455A Service h CHECK control will position the CH 2 display 0 5 division or more 500 ps to either side of the CH 1 display i Superimpose the rising edges of the pulses u...

Page 90: ...1 ms m Adjust probe compensation for the best flat top on the square wave signal display n Disconnect the probe tip from the CALIBRATOR ter minal Remove the grabber tip from the probe unscrew and remove the plastic barrel and connect the probe to the output of the Primary Sine Wave Generator via a BNC female to BNC female and a subminiature probe tip to BNC feed through termination o Set the SEC D...

Page 91: ...el for an 8 division display d CHECK Amplitude of each trace other than CH 1 is 0 08 division or less discount trace width e Move the signal to the CH 2 input connector and change the TRIGGER SOURCE to CH 2 f CHECK Amplitude of each trace other than CH 2 is 0 08 division or less discount trace width g Add a 50 n BNC termination to the BNC cable and move the signal to CH 3 h Set the TRIGGER SOURCE ...

Page 92: ... rotated fully CCW f VERIFY There is less than 0 5 division vertical trace shift when the INVERT button is pressed g Return the VERTICAL VAR controls to their detent positions and turn the CH 2 INVERT function off 9 Check CH 2 SIGNAL OUT and Cascaded Operation a Set NOTE Temporarily select CH 2 to set CH 2 VOL TS DIV 4 14 VERTICAL CH 1 On CH 2 CH 3 and CH 4 Off 20 MHz BW LIMIT On VOLTS DIV CH 1 an...

Page 93: ...Performance Check 2445A 2455A Service b Connect the Primary Leveled Sine Wave Generator output to the CH 2 input connector via a precision 50 o BNC cable c Set the generator frequency to 50 kHz and adjust the output level for a 6 division display on the CRT d Gradually increase the generator output frequency until the display amplitude decreases to 4 24 divisions e CHECK Generator frequency is bet...

Page 94: ...le 4 required Item 10 Dual Input Coupler Item 11 50 n BNC Termination 2 required Item 12 Adapter Item 25 Adapter Item 26 2 Required Delta At and AV TRACKING Trigger HOLDOFF LEVEL SLOPE MODE SOURCE COUPLING Off press and release until associated readout is off Off B ENDS A fully CW Midrange plus AUTO LVL VERT DC 1 Check A and B Triggers NOTE The Trigger Level Readout Accuracies are checked in the V...

Page 95: ...ECK For a stably triggered display unless other wise indicated for each of the Test Frequency TRIGGER COUPLING combinations listed in Table 4 5 When testing the 150 MHz 2445A or 250 MHz 2455A triggering check that trigger jitter is 100 ps 0 2 division at 5 ns div with X10 MAG with 5 divisions of signal and TRIGGER LEVEL adjusted for minimum jitter Test Fre quency 60 Hz 30 kHz 80 kHz 50 MHz 250 MHz...

Page 96: ...back in 4 18 NOTE On CTT instruments rotate the L1 REF OR DLY POS control for the specified delay As the control is rotated the readout delay value will be followed by the word SET This value shows the approximate delay A few seconds after control movement has stopped the word SET will disappear and the readout delay value as measured by the CTT will appear This is normal operation and not cause f...

Page 97: ...o VERT NOTE On CTT Instruments rotate the l REF OR DLY POS control for the specified delay As the control is rotated the readout delay value will be followed by the word SET This value shows the approximate delay A few seconds after control movement has stopped the word SET will disappear and the readout delay value as measured by the CTT will appear This is normal operation and not cause for conc...

Page 98: ...arts f through k for each channel 4 20 4 Check Slope Selection and Verify Line Trigger a Set VERTICAL CH 1 VOLTS DIV CH 1 Input Coupling CH 1 CH 2 3 4 HORIZONTAL A SEC DIV X10 MAG TRIGGER MODE SOURCE COUPLING 5V 1 MO DC On Off 2 ms knob in Off AUTO LINE AC In the next part DO NOT connect the probe ground lead to the ac power source b Attach the 1OX probe to the CH 1 OR X input con nector and conne...

Page 99: ...isplay Modes A A INTEN ALT and B a Use a 50 0 BNC cable to connect 200 ns time mark ers from the Time Mark Generator to the CH 1 OR X input connector b Adjust the TRIGGER LEVEL control as necessary for a stable signal display C Pull the SEC DIV knob out and set the B TRIGGER MODE to RUN AFT DLY NOTE On CTT instruments rotate the L1 REF OR DLY POS control for the specified delay As the control is r...

Page 100: ...ccuracies are within limits given in Tables 4 7 and 4 8 NOTE If the 2nd and 10th time markers are within 0 06 divi sion of the 2nd and 10th vertical graticule lines for unmagnified sweeps and within 0 1 division for magnified sweeps the sweep timing accuracy is con servatively within limits When the timing accuracy is checked at each sweep speed note any SEC DIV setting at which the timing error e...

Page 101: ...0 µS 1 µS 158 60 µS to 161 40 µS 2 µS 396 5 µS to 403 5 µS 5 µS 793 0 µS to 807 0 µS 10 µS 1586 0 µS to 1614 0 µS 20 µ5 3965 µ5 to 4035 µ5 50 µS 7 930 ms to 8 070 ms 100 µ5 15 860 ms to 16 140 ms 200µ5 39 65 ms to 40 35 ms 500 µS 79 30 ms to 80 70 ms 1 ms 158 60 ms to 161 40 ms 2 ms 396 5 ms to 403 5 ms 5 ms X10 Limits of 1t Cursor Readout 7 89 ns to 8 11 ns 4 cycles 15 78 ns to 16 22 ns 39 45 ns ...

Page 102: ...11th graticule line within 0 2 division k Set the A SEC DIV to 10 ns I Rotate the REF OR DLY and the controls to pre cisely superimpose the cursors near the 2nd graticule line m CHECK t readout indicates a difference of 0 30 ns or less 4 24 Over Any 4 Div 5 Div 6 Div 7 Div 8 Div 9 Div 10 Div 0 09 0 10 0 10 0 11 0 12 0 12 0 13 Div Div Div Div Div Div Div 0 11 0 12 0 13 0 14 0 16 0 17 0 18 Div Div D...

Page 103: ...ividers This is most noticeable with 10 ns 20 ns and 50 ns markers The following procedure will use the above markers to set up the proper references but the 5 ns markers will be used to make the actual measurement Close inspection of apparent jitter or mistrigger of the time marks will show the trigger point to be stable with the apparent jitter to be variable with unique combinations of trigger ...

Page 104: ...the reference marker can be easily found by noting the Delta Time Readout g Set HORIZONTAL A SEC DIV B SEC DIV X10 MAG Delta At 4 26 50 ns 10 ns knob out ON Off DLY readout Table 4 9 Delta Time Display Accuracy Time Marker Marker Period Super and A B SEC imposed SEC DIV DIV using the Switch Switch A Delta Delta Time Readout Setting Setting Control Accuracy Limits 20 ns 1 ns8 1st 19 25 ns to 20 25 ...

Page 105: ...A sweep speed will change with the SEC DIV knob Push TRACKING to unlock this setup Performance Check 2445A 2455A Service s CHECK The horizontal distance between the lead ing edges of the B sweep time markers is within the specified limits given in Table 4 10 The limit given is for separation between the 2nd and 10th marker however separation between the 2nd marker and each succeeding marker should...

Page 106: ...L SLOPE A MODE SOURCE COUPLING BMODE CTT and WR Options MENU Functions 4 28 500mV In detent 0 1 V On Off ALT Off 500 DC 10 ns knob in In detent Off Off Fully CW Off press and release until associated readout is Off Fully CCW Midrange plus AUTO LVL VERT DC RUN AFT DLY OFF 1 Check Maximum Input Frequency at Minimum Sensitivity a Connect the leveled sinewave generator output via a 50 l cable to the C...

Page 107: ...0025 mHz e Disconnect the test equipment from the instrument Performance Check 2445A 2455A Service 5 Check Delay Time a Set CH 1 VOLTS DIV CH 1 Input Coupling A SEC DIV A TRIGGER MODE 500 mV GND 20 ns knob in AUTO b Connect the output of the time mark generator via a 50 0 cable to the positive trigger input of the pulse generator c Connect the output of the pulse generator via a 50 0 cable to the ...

Page 108: ...ng is between 0 00005 µSand 0 00005 µS o Tum the a control to intensify the rising edge of the eleventh square wave 4 30 p CHECK Averaged at reading is between 8 99990 µS and 9 00010 µS q Set the A and B SEC DIV to 100 µS knob out r Set the time mark generator to produce 0 1 ms time markers s Set the pulse generator to produce a positive 50 µs pulse when externally triggered t Turn the a control t...

Page 109: ...n k Push in the SEC DIV knob Performance Check 2445A 2455A Service I Adjust the B TRIGGER LEVEL for a readout of o oov m Push the A 8 MENU button to illuminate an A TRIGGER MODE indicator n Adjust the A TRIGGER LEVEL for a readout of 1 00 V o Set the CH 1 Input Coupling to GND p Tum the CH 1 POSITION control to align the trace with the center horizontal graticule line do not readjust the CH 1 POSI...

Page 110: ...ton to enter Period mode I Push the upper TRIGGER MODE button to reinitialize the auto trigger level m Turn the SEC DIV to 5 µS 4 32 n Pull out the SEC DIV knob o Push the A B MENU button for B Trigger MODE Set B Trigger MODE to RUN AFT DLY p Adjust the REF or DLY POS for a delay of 5 00 µS q Push the lower TRIGGER MODE button once r Push the SLOPE button to select SLOPE if necessary s Push lower ...

Page 111: ... DIV VAR control for a sweep speed readout on bottom line of readout of 20 ms and adjust the Time Mark Generator variable timing control for exactly 2 time markers per division d CHECK The Time Mark Generator variable timing of error has changed 2 or less from the reading noted in part b e Adjust the SEC DIV VAR control fully CCW f CHECK Sweep speed readout displays 30 0 ms g Set the Time Mark Gen...

Page 112: ...ential a Set the Primary Leveled Sine Wave Generator for a 1 MHz 6 division horizontal display b Set the CH 2 VERTICAL MODE off CH 1 displays automatically c Use the CH 1 VERTICAL POSITION control to verti cally center the display on the graticule d CHECK Ellipse opening is 0 1 division or less measured horizontally e Set the CH 2 VERTICAL MODE on f Set the generator for a 2 MHz 6 division horizon...

Page 113: ...MODE AUTO LVL SOURCE CH 1 COUPLING DC 50 fl BNC T Connector Item 8 50 fl BNC Cables 2 required Item 10 1 Check CALIBRATOR Repetition Rate NOTE Refer to the Adjustment Procedure to check the accuracy of the CAL BRA TOR output levels a Connect a 10X probe from the CALIBRATOR termi nal to the CH 1 OR X input connector b Connect 1 ms time markers from the Time Mark Generator to the CH 2 input connecto...

Page 114: ...t mode A few seconds after control movement has stopped the word SET will disappear and the readout will display the direct measurement from the CTT b Connect a test oscilloscope to the A GATE OUT connector located on the instrument rear panel via a 50 0 BNC cable c CHECK Test oscilloscope displays a signal with a high level between 2 4 V and 5 Vanda low level between 0 V and 0 4 V d VERIFY Durati...

Page 115: ...W Off press and release until associated readout is Off Off B ENDS A fully CW Midrange plus A AUTO VERT DC 1 Verify ALT CHOP and ADD Modes and TRACE SEP a VERIFY CH 1 trace is visible with no VERTICAL MODE buttons selected b Press the CH 2 VERTICAL MODE button c VERIFY CH 1 trace is not displayed and the CH 2 trace is displayed d Press the CH 1 VERTICAL MODE button NOTE Separate the traces by appr...

Page 116: ... 2 CH 3 CH 4 and ADD POSITION Midrange 1 ms knob in On On Off Midrange b Press and hold the BEAM FIND button 4 38 c VERIFY The trace is less than 10 divisions long and remains in the graticule area as the CH 1 POSITION control and the Horizontal POSITION control are rotated through their complete ranges d Release the BEAM FIND button and set the VERTI CAL POSITION and Horizontal POSITION controls ...

Page 117: ... 1 input d Connect the output of pulse generator 2 via a 50 l cable and T connector to the CH 2 input connector Use the T connector at the CH 2 input e Connect the Word Recognizer probe to the P6407 input connector at the rear of the instrument f Connect a BNC male to dual binding post adapter to the T connector on the CH 1 input and connect another BNC male to dual binding post adapter to the T c...

Page 118: ... W0 W15 inputs of the Word Recognizer to the wire on the reel binding post of the CH 2 input y Set the A and B SEC DIV switch to 20 ns 4 40 2 Check Data Setup Time a For each test setup described in Table 4 11 1 Vary increase the pulse duration of pulse gen erator 2 until the active edge of the channel 2 signal falls about 10 ns after the trigger edge of the channel 1 signal 2 CHECK Channel 3 is n...

Page 119: ...r Word SLOPE 1 2 Definition 1 FFFF 0 0000 l 0 0000 l 1 FFFF Performance Check 2445A 2455A Service 4 Check Minimum Clock Pulse Width a Set pulse generator 1 to produce a 5 ns positive pulse every 1 µS b Push the NB MENU button to select A TRIGGER MODE c Push the upper TRIGGER MODE button to reinitial ize the auto trigger level d Push the NB MENU button e For each test setup described in Table 4 13 ...

Page 120: ...dge to WORD RECOG OUT Checks Polarity Word Recognizer A TRIGGER Pulse Generator Word SLOPE 1 2 Definition T X XXXX l X XXXX 4 42 4 CHECK Reading is 55 ns 5 Push the t button 6 Check Word Recognition Delay a Set pulse generator 1 to produce a positive 0 5 µs pulse every 1 µs b Disconnect the C input of the Word Recognizer from the wire on the red binding post of the CH 1 input c Connect the a and W...

Page 121: ...nd W0 W15 inputs of the Word Recognizer to the wire on the red binding post of the CH 2 input Performance Check 2445A 2455A Service g Push the A B MENU button to select A TRIGGER MODE h Push the upper TRIGGER MODE button to reinitial ize the auto trigger level i Vary increase the pulse duration of pulse generator 2 until further increase makes the channel 3 display stable 2 5 V amplitude j Push th...

Page 122: ...equence presented and in their entirety to ensure that control settings will be correct for the following steps The adjustments in CAL 01 02 03 and 04 should be performed in numerical sequence i e CAL 01 should be done before CAL 02 CAL 02 should be done before CAL 03 etc Performing partial procedures when setting the automatic calibration constants i e only one or two of the CAL steps is not reco...

Page 123: ... calibration INll IAL CON rROL SETTINGS Controls settings not listed will not affect the procedure VERTICAL CH 2 VOLTS DIV CH 3 and CH 4 VOLTS DIV CH 1 and CH 2 VAR CH 1 and CH 2 Input Coupling CH 1 CH 2 CH 3 and CH 4 ADD INVERT and BW LIMIT ALT CHOP POSITION 5 2 100 mV 1 V In detent 1 MO DC On Off Off ALT Midrange HORIZONTAL SEC DIV SEC DIV VAR POSITION TRIGGER MODE SOURCE COUPLING SLOPE LEVEL HO...

Page 124: ...mV 15 V J119 1 14 775 to 15 225 10 mV 2mV d Repeat parts a and b for the other test points listed in Table 5 1 g Using a 1X probe connect the test oscilloscope probe ground lead to chassis ground Connect the probe tip to the first test point listed in Table 5 1 e Disconnect the DMM f Set the test oscilloscope as follows Sweep Speed CH 1 Input Coupling Vertical controls Trigger controls Volts Divis...

Page 125: ...TAL SEC DIV SEC DIV VAR POSITION TRIGGER MODE SOURCE COUPLING SLOPE LEVEL HOLDOFF 5 4 100 mV In detent 1 Mn GND On Off Off ALT Midrange X Y knob in In detent Midrange AUTO LVL VERT DC plus Midrange In detent Delta t i V and t i t TRACKING INDEP Display INTENSITY READOUT INTENSITY SCALE ILLUM FOCUS Off press and release until readout disappears INDEP Visible display SCALE FACTORS OFF Fully CCW Best...

Page 126: ... necessary for the best aligned display Adjustment Procedure 2445A 2455A Service 3 Adjust Geometry R1870 NOTE If the previous step was not performed first set up the Initial Control Settings at the beginning of the CRT adjustments then proceed as follows a Set CH 2 Input Coupling v and t 500 DC Off no readout b Connect 10 µs time markers from the Time Mark Generator to the CH 2 input connector via...

Page 127: ...ive Focus R1842 NOTE If the previous step was not performed first set up the Initial Control Settings at the beginning of the CRT adjustments then proceed as follows 5 6 a Set tlV CH 2 VOLTS DIV CH 2 Input Coupling SEC DIV READOUT INTENSITY INTENSITY On tlV readout 200mV son DC 200 ns knob in Fully CW Fully CW b Connect a 10 MHz 6 division signal from the Leveled Sine Wave Generator to the CH 2 in...

Page 128: ...NTAL A SEC DIV SEC DIV VAR POSITION TRIGGER MODE SOURCE COUPLING SLOPE LEVEL HOLDOFF 100 mV In detent 1 Mn DC On Off Off ALT Midrange 100 µs knob in In detent Midrange AUTO LVL VERT DC plus Midrange In detent Delta at TRACKING INDEP Display On at readout INDEP INTENSITY Left of center READOUT INTENSITY As required for a visible display SCALE ILLUM Fully CCW FOCUS Best focused display 1 Adjust DAC ...

Page 129: ... and adjust the generator for a 6 clivision signal display 5 8 d ADJUST The CH 1 50 mV C Adj C105 on the Main Board for the same waveform front corner noted in part b e Repeat parts b through d until no change is observed in the waveform front corner when the CH 1 VOLTS DIV switch is alternated between the 50 mV and 100 V posi tions When switching between positions reestablish the reference displa...

Page 130: ...e Calibration Generator to the CH 1 OR X input connector via a 50 0 BNC cable e Set the generator output level for an 8 division display Adjustment Procedure 2445A 2455A Service f Use the CH 1 Vertical and Horizontal POSITION con trols to center the CH 1 display on the graticule g ADJUST Vertical Readout Jitter R618 for minimum vertical jitter of the readout characters and cursors h Disconnect the...

Page 131: ...10 5X Attenuator Item 17 Digital Multimeter DMM Item 19 Alignment Tool Item 20 Tunnel Diode Pulser Item 23 See ADJUSTMENT LOCATIONS 4 at the back of this manual for test point and adjustment locations INITIAL CONTROL SETTINGS CALJNO CAL jumper CAL position between pins 1 and 2 prior to turning on power NOTE When performing the automatic CAL steps the initial setup of front panel controls is not re...

Page 132: ... be moved upper left corner the autocal step number upper right corner the A Sweep speed bottom right center and the B Sweep speed bottom right comer as set up by the routine An example from step g above is ADJ 1 1 100µ5 1 µS m Connect the Time Mark Generator set for 0 1 ms time markers to the CH 1 OR X input connector via a 50 0 BNC cable n Set VOLTS DIV TRACE SEP CH 1 POSITION Horizontal POSITIO...

Page 133: ...ers z CHECK Readout indicates X1 X10 HRZ CTR step 5 and 10 µs for A Sweep and two vertical cursors appear on the display aa ADJUST X1 Gain R860 and Hrz Ctr R801 to align the two cursors with the 2nd and 10th vertical grati cule lines then adjust X10 Gain R850 for 1 time marker per division 5 12 bb Press and release the upper TRIGGER COUPLING switch Set the Time Mark Generator for 10 ms time marker...

Page 134: ...he previous step will be repeated At step 28 adjust Trans Resp R802 on the Main Board as indicated NOTE Change the CH 1 VOL TS DIV switch setting as necessary to maintain adequate signal display amplitude NOTE If the remainder of the Adjustment Procedure will not be performed in totality readjustment of Horizontal Readout Jitter R805 may be necessary see sub section 3 if the X1 Gain R860 or the X1...

Page 135: ...on the trace to within 1 division of the center graticule line g ADJUST CH 1 POSITION and VOLTS DIV VAR controls to obtain a 10 division horizontal signal Press and release the upper TRIGGER COUPLING switch 5 14 NOTE When step 111 is performed step 112 is also automatically done No indication of step 112 will be shown unless a LIMIT error is indicated NOTE In the following steps if the LIMIT messa...

Page 136: ...NAL TO CH 1 50 mV and BWL Adjustment Procedure 2445A 2455A Service s Move the signal to the CH 1 OR X input connector and set the Calibration Generator for a 50 mv standard amplitude signal then press and release the upper TRIGGER COUPLING switch Wait approximately 10 seconds for automatic calibration of the V cursors t CHECK Readout indicates VERT CENTER GAIN u ADJUST Gain R638 for precisely 5 di...

Page 137: ...the upper TRIGGER COUPLING switch o CHECK Readout indicates CH 4 500 mV and step 220 p Move the signal to the CH 4 input connector and change the generator output level to 0 5 V Press and release the upper TRIGGER COUPLING switch 5 16 q CHECK Readout indicates CH 4 2V and step 221 r Change the generator output level to 2 V then press and release the upper TRIGGER COUPLING switch s Disconnect the t...

Page 138: ...hold the TRIGGER SLOPE button Release the but tons after about 1 second o Scroll to CAL 04 p Press and release the upper TRIGGER COUPLING switch until the readout indicates DISABLED q Press and release the NB TRIG button to return to normal operating mode Adjustment Procedure 2445A 2455A Service CAL 05 Set HRS ON and PWR ON OFF cycles 5 Check Adjust Hours On and Power On Off cycles a Scroll to CAL...

Page 139: ... to back approximately 90 CCW h Press and release the upper TRIGGER COUPLING switch 5 18 i CHECK Readout indicates ADJ 1 step 2 10 mV j ADJUST C403 for best corner over first division 5 ns k ADJUST Trans Resp Adjustments C403 R410 for flattest corner over first 5 ns I Turn A SEC DIV VAR control CCW and ADJUST CRT termination R1501 for flattest waveform m Adjust 1 for the flattest waveform Set SEC ...

Page 140: ...UST for best corner ff Press and release the upper TRIGGER COUPLING switch step 6 Remove 5X attenuator ADJUST genera tor for a 5 division signal ADJUST for same corner noted in step ee abOve Adjustment Procedure 2445A 2455A Service gg Press and release the upper TRIGGER COUPLING switch step 7 Adjust generator for 5 division signal ADJUST for best corner hh Press and release the upper TRIGGER COUPL...

Page 141: ...nes e Press and release the lower TRIGGER COUPLING switch f Return the CAL NO CAL jumper to the NO CAL position g Press the A 8 TRIG button to return to normal operation 5 20 VERTICAL CH 1 CH 2 CH 3 and CH 4 CH 1 POSITION CH 1 VOLTS DIV CH 1 VAR CH 1 Input Coupling 20 MHz BW LIMIT HORIZONTAL POSITION X10 MAG A SEC DIV SEC DIV VAR rRIGGER HOLDOFF LEVEL A 8 TRIG SLOPE MODE SOURCE COUPLING On Off Mid...

Page 142: ... HOLDOFF 10 mV CCW out of detent In detent son DC On Off Off ALT Midrange 10 µS 100 ns knob in In detent Midrange AUTO LVL VERT DC plus Midrange Minimum CCW Delta t N TRACKING INDEP REF OR DLY POS and Display INTENSITY READOUT INTENSITY SCALE ILLUM FOCUS On RATIO readout INDEP Cursors near the 3rd line above and 3rd line below graticule center 6 division spacing Left of center Right of center Full...

Page 143: ...et the A SEC DIV to 1 ms knobs locked g Select CH 1 for display h Press and release the V button to obtain a V display if necessary 5 22 i Connect a 1 kHz fast rise signal from the Calibration Generator to the CH 1 OR X input connector via a 50 fl BNC cable j Set the generator output level for an 8 division display k Use the CH 1 Vertical and the Horizontal POSITION controls to center the CH 1 dis...

Page 144: ...1 Input Coupling BW LIMIT HORIZONTAL SEC DIV On Off 50mV 500 DC Off X Y Adjustment Procedure 2445A 2455A Service b Connect the Primary Leveled Sine Wave Generator to the CH 1 OR X input connector via a 50 U BNC cable c Set the generator frequency to 1 MHz and adjust the amplitude for a 6 clivision vertical signal display d Use the CH 1 POSITION control to vertically center the display on the grati...

Page 145: ...atic voltage from your body by wearing a grounded antistatic wrist strap while handling these components Servicing static sensitive components or assemblies should be performed only at a static free work station by qualified service personnel 4 Nothing capable of generating or holding a static charge should be allowed on the work station surface 5 Keep the component leads shorted together whenever...

Page 146: ...tion path that could result in instrument failure especially under high humidity conditions Avoid the use of chemical cleaning agents which might damage the plastics used in this 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 Exterio...

Page 147: ...mponent is replaced conduct a Per formance Check for the affected circuit and for other closely related circuits see Section 4 If repair or replace ment work is done on any of the power supplies conduct a complete Performance Check and if so indicated an instrument readjustment see Sections 4 and 5 Table 6 3 Internal Inspection Check List Item Inspect For Repair Action Circuit Boards Loose broken ...

Page 148: ... low pressure air NOTE Most of the switches used in the instru ment are sealed and the contacts are inac cessible If cleaning is deemed necessary use only isopropyl alcohol 4 Clean switches with isopropyl alcohol and wait 60 seconds for the majority of the alcohol to evaporate Then complete drying with low pressure air 5 Dry all components and assemblies in an oven or drying compartment using low ...

Page 149: ...tion for the reference designators and symbols used to identify components Important voltages and waveform reference numbers enclosed in hexagonal shaped boxes are also shown on each diagram Waveform illustrations are located adjacent to their respective schematic diagram Circuit Board Illustrations Circuit board illustrations showing the physical location of each component are provided for use in...

Page 150: ...easily destroyed by reversed or excessive voltage be careful to observe the polarity and voltage rating when replacing them DIODE COLOR CODE The cathode end of each glass encased diode is indicated by either a stripe a series of stripes or a dot For most diodes marked with a series of stripes the color combination of the stripes identifies three digits of the Tektronix Part Number using the resist...

Page 151: ... Monitor Entry into the Diagnostic Monitor and its uses are explained in the Diagnostic Routines discussion later in this section Maintenance 2445A 2455A Service 3 Check Control Settings Incorrect control settings can give a false indication of instrument malfunction If there is any question about the correct function or operation of any control refer to the Operators Manual 4 Check Associated Equ...

Page 152: ...tic sensitivity precautions located at the beginning of this section TRANSISTORS A good check of a transistor is actual performance under operating conditions A transistor can most effectively be checked by substituting a known good component However be sure that circuit conditions are not such that a replacement transistor might also be damaged If substitute transistors are not available use a dy...

Page 153: ...polarity Maintenance 2445A 2455A Service Light Emitting Diodes LEDs should have 1 5 to 2 2 V depending on their current and color across their junctions when conducting Higher readings usually indicate the diodes are open especially if they are not illuminated ON RESISTORS Check resistors with an ohmmeter Refer to the Replaceable Electrical Parts list for the tolerances of resistors used in this i...

Page 154: ...menu item displayed may vary entry into 6 10 the monitor from the normal mode begins at ALL TESTS while entry from power up starts at the first failed test Since in a failure mode the CRT readout may not be able to display the selected menu item the VERT TRIGGER SOURCE indicator illuminates as a reference when ALL TESTS is selected With the VERT TRIGGER SOURCE indicator illuminated the user may sc...

Page 155: ...igger COUPLING lower 02 Trigger COUPLING upper 04 CH 1 Coupling lower 05 CH 1 Coupling upper 11 CH 4 VOLTS DIV 12 CH 3 VOLTS DIV 13 INIT 50 14 CH 2 Coupling lower 15 CH 2 Coupling upper 25 CH 2 INVERT 31 CH 1 VERTICAL MODE 32 CH 2 VERTICAL MODE 33 ADD VERTICAL MODE 34 CH 3 VERTICAL MODE 35 CH 4 VERTICAL MODE 41 STEP AUTO 42 SAVE HELP 43 RECALL HELP 44 CHOP ALT VERTICAL MODE 45 20 MHz BW LIMIT 51 X...

Page 156: ...rating Time and Power Cycle Count Exerciser 06 INVERT Select Setup to Use at Power Up Exerciser 07 CHOP Enable Disable Setup SAVE and Sequence Definition Exerciser 08 BW LIMIT Initialize Setups Additional Diagnostic Exercisers for extended functions are In Appendix A of the Operators Manual 6 12 Routine Control When the desired Test or Exerciser has been selected the operator has two types of cont...

Page 157: ...f a failure occurs the cycle failure data identifying the first failure encountered is writ ten to RAM Thereafter at each power up the Diagnostic Monitor is automatically entered and the failure data is displayed The failure data must be cleared from the RAM location to eliminate the CYCLE mode failure display see CYCLE ERROR CLEAR Exerciser 03 The information displayed is an abbreviated version o...

Page 158: ...ata bus lines and the Data Bus Driver Correct Part A byte in the ROM being checked is compared to the most significant byte of the addressed ROM block starting address of where the ROM should be installed Test checks ROM address decoding and proper installation of ROM components Checksum A sixteen bit spiral add checksum is calculated and compared to a two byte value stored in ROM being checked Te...

Page 159: ...TA integrity and RAM CALIBRATION DATA retention Maintenance 2445A 2455A Service Limit Test Checks for valid calibration data Test checks The contents of locations containing calibration data are compared to their stored limits MAIN BOARD Test 05 The AUTO LVL triggering feature a routine stored in firmware is operated to detect the peaks of a Line Trigger signal Detected peaks are compared to expec...

Page 160: ...9 Potentiometer Codes and Values Exerciser 01 Rotation Values Potentiometer ccw cw AA Name BB DEEE BB DEEE Code FF 6FFF 00 6000 01 HOLDOFF FF 3FFF 00 3000 02 Trigger LEVEL 00 1000 FF 1FFF 03 SEC DIV VAR FF 5FFF 00 5000 04 Horizontal POSITION 00 0000 FF 3FFF 05 A section 8 00 0000 FF 3FFF 06 B section 8 00 0000 FF 3FFF 07 REF OR DLY POS A section 8 00 0000 FF 3FFF 08 REF OR DLY POS B section 8 FF 0...

Page 161: ...s reside between addresses 01 Hex and AA Hex Calibration constants residing between 01 Hex and 6E Hex should have odd parity as explained below The remaining locations may be of either parity The readout display line has the following format AA DODD P The format is defined as follows AA is the eight bit address in hexadecimal notation Row Column Definition Code Code GG I 5 0 Unused 5 1 Unused 5 2 ...

Page 162: ...e definition of the format is as follows CCCC is a two byte hexadecimal checksum PPPP is the four middle digits of the ROM part number 6 18 SS is the suffix of the ROM part number version number AAAA is the starting address of the ROM address where the ROM should be installed OD is a two character option designator identifying the option that this particular line of diagnostic information refers t...

Page 163: ... 6 11 and the associated Address Decode circuitry By moving Jumper P503 diagram 1 to the Diagnostic position Data Bus Buffers U2350 and U2450 are disabled and the Microprocessor is forced into a NOP no operation loop This causes the address on the address bus to be continuously incremented for exercising the Address Decode circuitry Troubleshooting of kernel addressing with an oscilloscope or logi...

Page 164: ...Parts list for the proper value rating tolerance and description NOTE Physical size and shape of a component may affect instrument performance particularly at high frequen 6 20 cies Always use direct replacement components unless it is known that a substitute will not degrade instrument performance Special Parts In addition to the standard electronic components some special parts are used in the i...

Page 165: ...e Example General soldering and Antex Precision Model C unsoldering Assembly and disassembly Xcelite Model R3323 Assembly and disassembly Tektronix Part Numbers T9 003 0965 00 T10 003 0815 00 T15 003 0966 00 T20 003 0866 00 Assembly and disassembly Xcelite 6 8 and 10 Assembly and disassembly Assembly and disassembly Component removal and Diamolloy Model LN55 3 replacement Component removal and Dia...

Page 166: ... To remove a soldered DIP IC when it is going to be replaced clip all the leads of the device and remove the 6 22 leads from the circuit board one at a time If the device must be removed intact for possible reinstallation do not heat adjacent conductors consecutively Apply heat to pins at alternate sides and ends of the IC as solder is removed Allow a moment for the circuit board to cool before pr...

Page 167: ...cially an IC do not heat adjacent pins consecutively Apply heat to the pins at alternate sides and ends of the IC as solder is removed Allow a moment for the circuit board to cool before proceeding to the next pin Excessive heat can cause the etched circuit conduc tors to separate from the circuit board Never allow the solder extractor tip to remain at one place on the board for more than three se...

Page 168: ...wer cord away from the instrument leaving the rear feet attached WAR l Q I Dangerous potentials exist at several points throughout this instrument If it is operated with the cabinet removed do not touch exposed connections or components Some transistors may have elevated case voltages Disconnect the ac power source from the instrument and verify that the line rectifier filter capacitors have disch...

Page 169: ...ment wrap around cabinet as described in that procedure Maintenance 2445A 2455A Service 2 Place the instrument on its left side on a flat surface 3 Disconnect the two ribbon cable and one flex circuit connectors P251 P651 and P652 from the Control board see Figure 6 2 4 Disconnect the two ribbon cable connectors P511 and P512 from the Main Board 5 Remove the five mounting screws securing the Con t...

Page 170: ...crews in the rear plate holding the black plastic primary circuit shield located inside the chassis and remove the shield 6 26 6 Remove the two screws holding the rear of the Power Supply assembly to the rear plate 7 Remove the three screws securing the power transistor heatsink to the chassis 8 Disconnect the power supply ribbon cable connector P251 from the Control board and feed the cable throu...

Page 171: ...omplished by the following steps 1 Remove the instrument Cabinet as described in that procedure Maintenance 2445A 2455A Service 2 Remove the Vertical Bracket as described in that procedure WA lfllfG I The CRT anode lead may retain a high voltage charge after the instrument is tumed off To avoid electrical shock ground the CRT anode lead to the chassis after disconnecting the plug Reconnect and dis...

Page 172: ...r through the slots in the Main board and chassis 6 28 To reinstall the Readout board perform the reverse of the preceding steps A6 Front Panel Circuit Board Assembly Removal Removal of the Front Panel circuit board assembly is accomplished by the following steps 1 Remove the instrument Cabinet as described in that procedure 2 Set the instrument back into its rear cover with the CRT facing up Usin...

Page 173: ...align all push buttons and LEDs with the black plastic switch guides before installing and tightening the screws A10 and A11 Channel 1 and Channel 2 Attenuator Assembly Removal Removal of either the Channel 1 or Channel 2 Attenua tor assembly is accomplished by the following steps Maintenance 2445A 2455A Service 1 Remove the instrument Cabinet as described in that procedure 2 Remove the Front Pane...

Page 174: ...button or it will be damaged 6 30 12 Remove the power switch push button mounting screw item A shown in Figure 6 3 Separate the long extension shaft from the short extension shaft at point B by inserting a small screwdriver tip in the slot while pulling out on the bracket at point C Remove the screw item D and slide the long extension shaft out the rear of the front frame 13 Remove the two screws ...

Page 175: ...t away from the front subpanel while working the wires and connector through the slot in the subpanel To reinstall the Scale Illumination circuit board perform the reverse of the preceding instructions CRT Removal WARlfflfQ I Use care when handling a CRT Breakage of the CRT may cause high speed scatten ng of glass frag ments implosion Protective clothing and safety glasses preferably a full face s...

Page 176: ...t will be necessary to loosen these cables from the option board enough to slip the cover out underneath them 6 32 9 Disconnect the connector P903 from the front of the High Voltage board Note connector orientation for reinstallation 10 Remove the front decorative trim ring as described in the AS Front Panel circuit board assembly removal instructions 11 Remove the eight retaining screws from the ...

Page 177: ...lloscope is ordered with Option 1R it is shipped in a configuration that permits easy installation into a 19 inch wide electronic equipment rack An optional rear support kit is also available for use when rackmounting the instrument Using this optional rear support kit enables the rackmounted instrument to meet appropriate electrical and environmental specifications Connector mounting holes are pr...

Page 178: ...Options 06 Counter Timer Trigger and 09 Counter Timer Trigger with Word Recognizer allow preci sion time interval measurement event and frequency 7 2 counting delay by events triggering and logic triggering The 17 bit Word Recognizer probe of Option 09 extends the capabilities of these functions OPTION 10 Option 10 allows the instrument to be remotely con trolled and queried using a standard inter...

Page 179: ...R1234 A23 R1234 Read Resistor 1234 of Aaaembly 23 E ample b component number A23A2R1234 A23 A2 R1234 Assembly Subassembly L__ number Circuit number Read Realator 1234 ol Subaaaembly 2 of Assembly 23 Only the circuit number will appear on the diagrams and circuit board illustrations Each diagram and circuit board illustration is clearly marked with the assembly number Assembly numbers are also mark...

Page 180: ...ERATIONAL PUNUNG ANO CUSTOMER ENGINEERING 09353 CAND K COMPONENTS INC 15 RIVERDALE AVE NENTON MA 02158 09922 BURNOY CORP IUCHAROS AVE iRNauc cr 06852 11236 CTS OF BERNE INC 406 PARR ROAD BERNE IN 46711 12954 MICROSEMI CORP 8700 ETHOMAS RO SCOTTSDALE AZ 85252 PD BOX 1390 12969 UNITRODE CORP 580 PLEASANT ST NaTERTONN MA 02172 14301 IINDERSDN ELECTRONICS INC 310 P ST HOLLIDAYSBURG PA 16648 14433 ITT ...

Page 181: ... CHICaGO IL 60640 72982 ERIE TECIN LOGICAL PRODUCTS INC 645 N 11TH ST ERIE Pa 16512 73138 BECKNIIN INSTRUMENTS INC HELIPOT DIV 2500 HARBOR BLVD FULLERTON ca 92634 75042 TRN INC 401 NBROAD ST PHILADELPHIA Pa 19108 TRN ELECTRONIC COMPONENTS IRC FIXED RESISTORS PHILADELPHIA DIV 80009 TEKTRONIX INC 4900 SN GRIFFITH OR BEAVERTON OR 97077 PO BOX 500 81483 INTERNATIONAL RECTIFIER 9220 SUNSET BLVD LOS at ...

Page 182: ... CIIP FXO CER Ol 27PF 5l 100V 04222 M1110111270JIIII 111C116 281 0814 00 CIIP FXO CER 01 100 PF 10l 100V 04222 M1110111101KIUI 111C117 281 0775 01 CIIP FXO CER Ol 0 1UF 20t 50V 04222 Mll205E104MIIII 111C118 281 0205 00 CIIP VIIR PLASTIC 5 5 65 PF 100V TK1727 2222 808 32659 111C119 281 0909 DO CIIP FXO CER Ol 0 022UF 20t 50V 54583 M1112X7R1H22311 T 111C120 281 0909 00 CIIP FXO CER 01 0 022UF 20t 50...

Page 183: ...l 100V 04222 MA101A220KAA 111C480 281 0775 01 CIIP FX0 CER 0l 0 1UF 20l 50V 04222 Mll205E104MAA 111C487 281 0823 00 CIIP FX0 CER 0l 470PF 10l 50V 04222 MA105A471KAA 111C488 281 0814 00 CIIP FX0 CER 01 100 PF 10l 100V 04222 MA10111101KAA 111C500 281 0909 00 CIIP FX0 CER 0l 0 022UF 20l 50V 54583 MA12X7R1H223M T 111C501 281 0909 00 CAP FX0 CER 0l 0 022UF 20l 50V 54583 MA12X7R1H223M T 111C512 290 0246...

Page 184: ...752 03 111 912 281 0909 00 CIIP FXO CEA DI 0 022 JF 201 sov 54583 Nll12X7R1H223M T 111 933 281 0909 00 CIIP FXD CEA DI 0 022UF 201 sov 54583 Nll12X7R1H223M T 111 938 281 0909 00 CIIP FXO CEA DI 0 022 JF 201 sov 54583 Nll12X7R1H223M T 111 940 281 0909 00 CIIP FXO CEA Ol 0 022UF 20l 50V 54583 Nll12X7R1H223M T 111 941 281 0763 00 CIIP FXO CEA Ol 47PF 10l 100V 04222 Nll101A470KIIA 111 943 281 0909 00 ...

Page 185: ...0V D0 35 03508 0112527 1N4152 A1CR539 152 0141 02 SEMICDND DVC Dl SM SI 30V 150MA 30V D0 35 03508 0112527 1N4152 A1CR600 152 0141 02 SEMICDND DVC Dl SM SI 30V 150MA 30V D0 35 03508 0112527 1N4152 A1CR601 152 0141 0Z SEMICDND DVC Dl SM SI 30V 150Mll 30V D0 35 03508 0112527 1N4152 A1CR616 152 0141 02 SEMICOND DVC Dl SM Sl 30V 150MA 30V D0 35 03508 0112527 1N4152 A1CR619 152 0141 02 SEMICOND DVC Dl S...

Page 186: ...1L521 108 1251 00 COIL RF FXD 2 7UH 10l 54583 SPT 0406 2R7K 6 111L 605 108 0170 01 COIL RF FIXED 360tlt TIC2042 ORDER BY DESCR 111L 606 108 0736 00 COIL RF FIXED B10NH TIC2042 ORDER BY DESCR 111L 607 109 0736 00 COIL RF FIXED 810NH TK2042 ORDER BY DESCR 111L 608 109 0170 01 COIL RF FIXED 360tlt TIC2042 ORDER BY DESCR 111L 609 108 D509 00 COIL RF FIXED 2 45UH TIC2042 ORDER BY DESCR 111L610 108 0509...

Page 187: ...8G5 111R149 315 0103 00 RES FXD Fll M 10K 0114 51 0 ZSN 19701 5043CX10KOOJ 111R152 315 0562 00 RES FXD Fll M 5 6K OHM 51 0 25N 57668 NTR25J E05K6 111R153 315 0752 00 RES FXD Fll M 7 SK DHM 51 0 25N 57668 NTR25J E07K5 A1R154 321 0210 00 RES FXD Fll M 1 SOK OHM 1l 0 125N TC TO 19701 5033ED1K50F 111R155 321 0206 00 RES FXD Fll M 1 37K 0114 1l 0 125N TC TO 07716 CEIID13700F 111R156 321 0255 00 RES FXD...

Page 188: ...19701 5033ED16K50F A1R455 321 0310 00 RES FXO FIUl 16 5K 0111 11 0 125N TC TO 19701 5033ED16K50F A1R456 321 0333 00 RES FXO FIUl 28 7K Olll 11 0 125N TC TO 19701 5043ED2BK70F A1R457 321 0275 00 RES FXO FIUl 7 15K Olll 11 0 125N TC TO 07716 CEA071500F A1R458 321 0085 00 RES FXO FIUl 75 Olll 11 0 125N TC TO 57668 CRB14FXE 75 0111 A1R459 321 0085 00 RES FX0 FIUl 75 0111 11 0 125N TC T0 57668 CRB14FXE...

Page 189: ...FIUC 75 OHM 5l 0 25N 57668 NTR25J E75EO 111R550 315 G471 00 RES FXD FIUC 470 OHN 5l 0 25N 57668 NTR25J E470E 111R551 321 1682 07 RES FXD FIU4 5 7K OHN 0 11 0 125 TC T9 19701 5033RE5K7018 111R552 321 0641 07 RES FXD FIU4 1 8K OHN 0 190 0 125 TC T9 07716 CEIIE 180008 111R553 315 0152 00 RES FXD FIU4 1 5K OHM 5l 0 25N 57668 NTR25J E01K5 111R554 315 0162 00 RES FXD FIU4 1 6K OHM 51 0 25 19701 5043CX1K...

Page 190: ...315 0273 00 AES FXD FIUl 27K 0111 51 0 ZSN 57668 NTR25J E27K0 111A736 321 0217 00 AES FXD FIUl 1 78K Olll 11 0 125N TC T0 19701 5043D1K780F 111A737 321 0263 00 AES FXD FIUl 5 36K Olll 11 0 125N TC T0 on16 CEAD53600F 111A738 321 0273 00 AES FXD FIUl 6 81K Olll 11 0 125N TC T0 on16 CEAD68100F 111A741 315 0272 00 AES FXD FIUl 2 7K 0111 51 0 ZSN 57668 NTR25J ED2K7 111R742 315 0151 00 AES FXD FIUl 150 ...

Page 191: ...972 315 o51D OO RES FXD FIL M 51 0HN 5l 0 25N 19701 5043CX51ROOJ 111R973 315 o513 00 RES FXD FIL M 51K 0HN 5l 0 25N 57668 NTR25J E51KO 111R981 315 0101 00 RES FXD Fll M 100 0HN 5l 0 25N 57668 NTR25J E 100E 111R982 321 0103 00 RES FXD FIL M 115 OHM 11 0 125N TC TO 01121 RNK1150F 111R983 315 0101 00 RES FXD FIL M 100 0HN 5l 0 25N 57668 NTR25J E 100E 111R984 315 0101 00 RES FXD FIL M 100 OHN 51 0 25 ...

Page 192: ...SSY SP ELEC 5 22 ANG 2 6 L 9 N 80009 174 0385 00 A1N180 131 0566 00 BUS CONO DUNNY RES 0 094 OD X0 225L 24546 ONA 07 A1N280 131 0566 00 BUS CONO DUNNY RES 0 094 OD X0 225L 24546 ONA 07 A1 91B 195 3991 01 LEAD ELECTRICAL 22 ANG 3 5 L 0 N 80009 195 3991 01 A1 919 195 3991 01 LEAD ELECTRICAL 22 ANG 3 5 L 0 N 80009 195 3991 01 A1X100 136 0763 00 SKT PL IN ELEK 26 LINE CONT INPO HYBRID 00779 ORDER BY D...

Page 193: ... Da2527 1N4152 112A1CR1264 152 0141 02 SEMICONO DVC Dl SM Sl 30Y 1501Ul 30V D0 35 03508 0112527 1N4152 112A1CR1281 152 0141 02 SEMICOND DVC Dl SM Sl 30V 150Ma 30V D0 35 03508 0112527 1N4152 112a1CR1282 152 0141 02 SEMICOND DVC Dl SM Sl 30V 1501Ul 30V D0 35 03508 0112527 1N4152 a2A1CR1283 152 0066 00 SEMICOND DVC Dl RECT S1 400V 1a D0 41 05828 GP10G 020 112a1CR1300 152 0141 02 SEMICOND DVC Dl SM Sl...

Page 194: ...5ROOJ A2A1R1204 315 0103 00 8010100 8010105 RES FXD FIU4 10K H 51 0 25 19701 5043CX10KOOJ A2A1R1204 313 1103 00 8010106 RES FXO FIU4 10K 0 51 0 2N 57668 TR20JE10KO A2A1R1208 315 0201 00 8010100 80101D5 RES FXD FIU4 200 0 51 0 25 57668 NTR2SJ E200E A2A1R1208 313 1201 00 8010106 RES FXD FIU4 200 H 51 0 2N 576 8 TR20J 200 A2A1R1212 315 0393 00 8010100 B010105 RES FXO FIU4 39K H 51 0 25 57668 NTR2SJ E...

Page 195: ...O CNPSN 47 OHM 51 1N 01121 684705 112Q1R1301 308 1839 00 RES FXO NN 0 1 OHM 51 1 0N 75042 8N 20 R1000J 112Q1R1302 315 0102 IO 8010100 8010105 RES FXO FIL M 1K 0HM 51 0 25 57668 NTR25JE01KO A2111R1302 313 1102 IO 8010106 RES FXO FIL M 1K OHM 51 0 2 57668 TR20JE01KO 112Q1R1304 315 0243 IO 8010100 8010105 RES FXO FIL M 24K OHM 51 0 25 57668 NTR25J E24KO 112Q1R1304 313 1243 IO 8010106 RES FXO FIL M 24...

Page 196: ...01 0 0022 UF 20l 250VIIC TK0515 PME271Y510 113C1021 290 0971 00 CIIP FXO ELCTLT 290UF 50 101 200V 56289 390X1314 113C1022 290 0971 00 CIIP FXO ELCTLT 290UF 50 101 200 56289 39DX1314 113C1023 281 0773 00 CIIP FXO CER DI 0 01UF 101 100V 04222 Mll201C103KIIA 113C1025 290 0942 00 CIIP FXO ELCTLT 100UF 100 101 25V 55680 UPA1E101MAH 113C1032 281 0812 00 CIIP FXD CER OI 1000PF 101 100V 04222 MA101C102KAA...

Page 197: ...3 95 4269 113CR1113 152 0633 00 B010100 B010118 SEMlcotll DVC Dl RECT SI 30V 311 11282 04713 1 5821 113CR1113 152 0946 00 B010119 SEMICOND DVC Dl RECT Sl 40V 3 0II 80009 152 Q946 00 113CR1114 152 0633 00 B010100 B010118 SEMicotll DVC Ol RECT Sl 30V 311 11282 04713 1N5821 113CR1114 152 0946 00 B010119 SEMICOND OVC OI RECT S1 40V 3 0II 80009 152 0946 00 113CR1115 152 0633 00 B010100 B010118 SEMICOND...

Page 198: ...0 8010106 R S FXD Fll N 1K 0111 51 0 ZN 57668 TR20Jm1KO A3R1035 31S 0103 00 8010100 8010105 RES FXO Fll N 10K 0111 51 0 ZSN 19701 5043CX10KOOJ A3R1035 313 1103 00 8010106 RES FXO Fll N 10K Olll 51 0 2N 57668 TR20JE10KO A3R1036 31S 0103 00 8010100 8010105 RES FXO Fll N 10K 0111 51 D ZSN 19701 5043CX10KOOJ A3R1036 313 1103 00 8010106 RES FXO Fll N 10K 0111 51 0 2 57668 TR20JE10KO A3R1037 315 0272 00...

Page 199: ...ODE 13MH 0 5A 20462 4096 A3T1060 120 1437 0D XFMR PNR STPDN 02113 C1310 A3U1029 156 G885 05 CPLR OPTOELECTR LED 5KV ISOL ATION 09019 H11AX1139R A3U1030 156 1627 00 MICRDCKT LINEAR PULSE NIDTH MODULATED CONT 12969 UC494ACN CIRCUIT SNITCHING PONER SUPPLY SCRN A3U1040 156 G885 0S CPLR OPTOELECTR LED 5KV ISOL ATION 09019 H11AX1139R A3U1064 156 0366 02 MICROCKT DGTL DUAL DFLIP FLOP SCREENED 02735 CD401...

Page 200: ...RES FXD FILM 200K 0114 1l 0 2N TC T0 91637 CCFSOG20002F 114R2917 322 3385 00 RES FXD FILM 100K 0114 1l 0 2N TC T0 57668 CRB20 FXE 100K 114R2918 311 2270 00 RES VIIR IOIM TRNR 10K 0114 20 0 SN TK1450 GFO VT 10 KOIIC 114R2919 322 3385 00 RES FXD FILM 100K 0114 1l 0 2N TC T0 57668 CRB20 FXE 100K 114R2920 315 0334 00 B010100 8010105 RES FXD FILM 330K 0114 51 0 25N 57668 NTR25J 330K 114R2920 313 1334 0...

Page 201: ...VR2805 152 G217 00 SENIOIIJ DVC Dl ZEN SI 8 2V 51 0 Q D0 7 04713 SZGZO MVR292S 152 o 62 GO SENICONII DVC Dl ZEN Sl SY 11 40DMN D0 7 04713 SZG195RL MN411 175 4581 01 al IISSY SP ELEC 26 28 IING 2 25 L RIBBON 22526 ORDER BY DESCR A4N2851 131 156 00 BtlS CONll DIIINY RES 0 094 OD X0 22SL 24546 OMA 07 MN2913 131 Q566 GO BUS COND Dlllft RES 0 094 00 X0 22SL 24546 OMA 07 115 10 9052 00 CIRCUIT BO ASSY D...

Page 202: ...D 0 47UF 10l 50V 55112 1850 47K50AIIB A5C2721 285 1348 00 CAP FXD MTLZ0 0 22UF 10l 63V 55112 1850 221C63A88 A5C2730 285 1348 00 CAP FXD MTLZD 0 22UF 101 63 55112 1850 22K63ABB A5C2731 285 1301 01 CAP FXD MTLm o 47UF 101 SOV 55112 1850 47K50A88 A5C2732 285 1301 01 CAP FXD MTLZD 0 47UF 10l 50V 55112 1850 47KSOIIB8 A5C2733 285 1301 01 CAP FXD MTLZD 0 47UF 10l 50V 55112 1850 47KSOllll8 A5C2740 281 090...

Page 203: ...313 1103 00 RES FXD Fll N 10K 0114 51 0 2 57668 TR20JE10KO ll5R2205 313 1103 00 RES FXD Fll N 10K 0114 51 0 2 57668 TR20JE10KO ll5R2206 313 1103 00 RES FXD FILN 10K OHM 51 0 2 57668 TR20JE10KO ll5R2220 313 1102 00 RES FXD Fll N 1K OHM 51 0 2 57668 TR20JE01KO ll5R2230 322 3482 02 RES FXD Fll N 14 ZK 0114 0 51 0 2 TC TO 57668 CRB 20 DYE 14K2 ll5R2231 313 1102 00 RES FXD Fll N 1K OHM 51 0 2 57668 TR2...

Page 204: ...DYE 10KO 115R2440 313 1104 00 RES FXO FILM 100K 0lll 5l 0 2N 57668 TR20JE100K 115R2441 313 1104 00 RES FXO FILM 100K Olll 5l 0 2N 57668 TR20JE100K 115R2442 313 1104 00 RES FXO FlLM 100K Olll 5l 0 2N 57668 TR20JE100K 115R2443 313 1103 00 RES FXO FlLM 10K Olll 5l 0 2N 57668 TR20JE10KO 115R2444 313 1103 00 RES FXD FlLM 10K 0lll 5l 0 2N 57668 TR20JE10KO 115R2470 313 1681 00 RES FXD FILM 680 0lll 5l 0 ...

Page 205: ...5R2660 313 1103 00 RES FXD FIUl 10K OHM 51 0 2 57668 TR20JE10KO 115R2661 313 1103 00 RES FXD FlUI 10K OHM 51 0 2 57668 TR20JE10KO ll5R2701 313 1103 00 RES FXD FIUl 10K OHM 51 0 2 57668 TR20JE10KO IISR2702 313 1103 00 RES FXD FIUl 10K OHM 51 0 2 57668 TR20JE10KO ll5R2703 313 1103 00 RES FXD FIUl 10K OHM 51 0 2 57668 TR20JE10KO ll5R2704 313 1103 00 RES FXD FIUl 10K OHM 51 0 2 57668 TR20JE10KO ll5R27...

Page 206: ...04111 A5U2550 156 0469 02 MICROCKT DGTL 3 8 LINE DCOR 01295 SN74LS138NP3 A5U2601 156 G513 03 MICROCKT LINEIIR OIIS B CHAN IINIILDG IIJX 04713 MC14051BCL ll5U2620 156 1200 01 MICROCKT LINEIIR OPERllTIONIIL IIMPL QUAD 8IFET 80009 156 1200 D1 A5U2630 156 1200 01 NICROCKT LINEAR OPERllTIONIIL IIMPL QUIIO BIFET 80009 156 1200 D1 A5U2640 156 0895 01 MICROCKT DGTL 14 BIT BINARY Cotl4TER BUAN IN 02735 C04...

Page 207: ... SENICOND OVC Ol SN 51 30V 150M4 30V D0 35 03508 0112527 1N4152 46A1CR3024 152 0141 02 SENICONO DVC Ol SN 51 30V 150M4 30V D0 35 03508 042527 1N4152 46A1CR3025 152 0141 02 SENICONO OVC 01 SN 51 30V 150MA 30V 00 35 03508 042527 1N4152 46A1CR3026 152 0141 02 SENICONO OVC Dl SN 51 30V 150MA 30V 00 35 03508 0112527 1N4152 46A1CR3027 152 0141 02 SENICOND OVC Ol SN 51 30V 150MA 30V D0 35 03508 042527 1N...

Page 208: ...0 LT EMITTilli DIO GREEN 50434 QLMP 1587 1161110S3043 150 1161 00 LT EMITTilli 010 YELUIN 50434 QLMP 1487 1161110S3044 150 1161 00 LT EMITTilli 010 YELUIN 50434 QLMP 1487 1161110S3045 150 1161 00 LT EMITTilli DIO YELUIN 50434 QLMP 1487 1161110S3046 150 1160 00 LT EMITTilli DIO GREEN 50434 QLMP 1587 1161110S3047 150 1160 00 LT EMITTilli DIO GREEN 50434 QLMP 1587 1161110S3048 150 1160 00 LT EMITTill...

Page 209: ... A6A1U3006 156 2120 00 MICROCICT IIGTL SERIAL IN PARALLEL OUT SHIFT 07263 74F164PCQR OCQR A8 670 7280 00 CIRCUIT BO AS5Y SCALE ILL UM 80009 670 7280 00 ABOS100 150 oo57 01 UIMP INCANll 5V 0 115A NIRE LD AGED SEL 71744 7153 AS 15 ABOS101 150 oo57 01 UIMP INCANll 5V 0 115A NIRE LD AGED SEL 71744 7153 AS 15 ABOS102 150 oo57 01 UIMP INCANll 5V 0 115A NIRE LD AGED SEL 71744 7153 AS 15 A9 670 12n os CIR...

Page 210: ...9R1855 321 0407 00 RES FXO FILN 169K 0111 11 0 125M TC TO 07716 CEA016902F A9R1856 321 0367 00 RES FXO FILN 64 9K Olll 11 0 125M TC TO 07716 CEllll64901F A9R1857 321 0364 00 RES FXO FILN 60 4K 0111 11 0 125M TC TO 19701 5043ED60K40F A9R1858 315 0105 00 B010100 B010105 RES FXO FILN 1N 0111 51 0 ZSM 19701 5043CX111JDOJ A9R1858 313 1105 00 B010106 RES FXO FILN 1N Olll 51 0 2 57668 TR20JE1N A9R1864 31...

Page 211: ... 2N 57668 TR20JE 390K A9R1994 321 0402 00 RES FXD FILN 150K 0114 11 0 125N TC TO 19701 5033E0150KOF A9T1970 120 1418 01 XFMR PNR SIIN SU HIGH VOLTAGE 80009 120 1418 01 A9U1062 156 1411 02 MICROCKT LINEAR QUAD COMPQRATOR SCREENED 04713 LN339JDS A9U1830 152 G805 00 SEMICONII DVC 01 HV MULTR 4 67KV IN 14KV OUT 54431 MSR8506 A9U1890 156 1191 01 MICROCKT LIMEAR DUAL 81 FET OP ANP 8 OIP 80009 156 1191 0...

Page 212: ...0 119 1478 01 260 1967 00 154 0850 01 Name Deacription SEMICONO DYC OI ZEN Sl 6 2Y Sl 0 4N D0 7 CAP FXO CER DI 50DOPF 100 Dl 100V FUSE CARTRIDGE 3AG 2A 250V RIST Bl ON COIL TIIIE OEFL FXO TRACE ROTATION SNITCH SLIOE OPOT 5A 250V 10A 125V NICO CRT ASSEMBLY FINISHEO 2445 Mfr Code Mfr Part No IM713 S113903 72982 71400 80009 TK0935 80009 2425 003 5lll502Z AGC ot Z 119 1478 01 4021 0512 154 D850 01 ...

Page 213: ...R1234 A23 R1234 Read Re l1tor 1234 of Al embly 23 E11ample b component number A23A2R1234 A23 A2 R1234 Assembly Subassembly L__ number Circuit number Read Re i1tor 1234 of Suba embly 2 of A11embly 23 Only the circuit number will appear on the diagrams and circuit board illustrations Each diagram and circuit board illustration is clearly marked with the assembly number Assembly numbers are also mark...

Page 214: ...INC NEST CAP ARIZONA BOURNS INC TRINPOT DIV ADVANCED MICRO DEVICES RENCO CORP HENLETT PACKARD CO OPTOELECTRONICS DIV MURATA ERIE NORTH AMERICA INC GEORGIA OPERATIONS Address ORANGE ST PO BOX 3608 1201 SOUTH 2tll ST 13500 NCENTRAL EXPRESSNIIY PO BOX 225012 14 S 49 1102 SILVER LAKE RD 5083 KINGS HNY ROUTE 202 N GENESEE ST 19TH AVE SOUTH PO BOX 867 5005 EMCDONELL RD 11901 NIIOISON AVE 600 N JO ST 150...

Page 215: ...F6 CO 114 OLD STATE RO ST LDUIS MO 63178 MCGRaN mISION CO PO BOX 14460 GENERAL INSTRUMENT CORP LAMP DIV 4433 NRAVENSNOOO AVE CHICAGO IL 60640 ERIE TECHNOLDGICAL PRODUCTS INC 645 N11TH ST ERIE PA 16512 BECKMAN INSTMENTS INC HELIPOT DIV 2500 HARBOR BLVD FULLERTON CA 92634 TRN INC 401 NBROAD ST PHILADELPHIA PA 19108 TRN ELECTRONIC COMPONENTS IRC FIXm RESISTORS PHU ADELPHIA DIV TEKTRONIX INC 4900 SN G...

Page 216: ...C115 281 0761 00 CIIP FXD CER DI 27PF Sl 100V 04222 Nll101A270JIIA 111C116 281 o814 00 CIIP FXD CER DI 100 PF 101 10DY 04222 Nll101111D1KAA 111C117 281 0775 o1 CIIP FXD CER DI D 1UF 201 50V 04222 Nll205E104NIIA 111C118 281 0205 00 CIIP VIIR PLIISTIC 5 5 65 PF 1DDY TK1727 2222 808 32659 111C119 281 D909 00 CIIP FXD CER DI D D22UF 201 50V 54583 Nll12X7R1H223N T 111C120 281 G909 00 CAP FXD CER DI D 0...

Page 217: ...00V 04222 MA101A470KAA A1C478 281 0759 00 CAP FXD CER Ol 22PF 101 100V 04222 MA101A220KAA A1C480 281 0775 01 CAP FXO CER Dl 0 1UF 201 50V 04222 Mll205E104MAA A1C487 281 D823 00 CAP FXD CER Dl 470PF 101 50V 04222 MA105A471KAA A1C488 281 D814 00 CAP FXO CER 01 100 PF 101 100V 04222 MA101A101KAA A1C500 281 G909 00 CAP FXO CER Ol 0 022UF 201 50V 54583 MA12X7R1H223M T A1C501 281 G909 00 CAP FXO CER Dl ...

Page 218: ... A1C912 281 0909 DD CAP FXO CER DI D 022UF 201 SDV 54583 NA12X7A1H223N T A1C933 281 D9D9 DD CAP FXD CER Dl 0 022UF 201 SDV 54583 MA12X7A1H223N T A1C938 281 D9D9 DD CAP FXO CER DI 0 022UF 2Dl SDV 54583 MA12X7R1H223N T A1C94D 281 0909 DD CAP FXO CER DI D 022UF 2Dl SDV 54583 MA12X7R1H223N T A1C941 281 0763 00 CAP FXD CER DI 47PF 101 1DDV 04222 MA101A470KJIA A1C943 281 D9D9 DD CAP FXO CER DI D 022UF 2...

Page 219: ...8 DA2527 1N4152 A1CR539 152 0141 02 SEMICONO DVC Dl SN SI 30V 150MA 30V D0 35 03508 DA2527 1N4152 A1CR600 152 0141 02 SEMIONI DVC Dl SN SI 30V 150NA 30V D0 35 03508 DA2527 1N4152 A1CR601 152 0141 02 SEMIONI DVC Dl SN SI 30V 150MA 30V D0 35 03508 DA2527 1N4152 A1CR616 152 0141 02 SEMIONI DVC Dl SN SI 30V 150NA 30V D0 35 03508 DA2527 1N4152 A1CR619 152 0141 0Z SEMIONI DVC Dl SN Sl 30V 150NA 30V D0 3...

Page 220: ... 108 1251 00 COIL RF FXD 2 7UH 101 54583 SPT 0406 2R7K 6 A1l 605 108 0170 01 COIL RF FIXED 360NH TK2042 ORDER BY DESCR A1l 606 100 0736 00 COIL RF FIXED 810NH TK2042 ORDER BY DESCR A1l 607 108 0736 00 COIL RF FIXED 810NH TK2042 ORDER BY DESCR A1l 608 108 0170 01 COIL RF FIXED 360NH TK2042 ORDER BY DESCR A1l 609 108 0509 00 COIL RF FIXED 2 45UH TK2042 ORDER BY DESCR A1l 10 108 0509 00 COIL RF FIXED...

Page 221: ...NTR25J E390E A1R143 31S 0391 00 RES FXD FILM 390 0111 51 0 ZSN 57668 NTR25J E390E A1R144 307 0108 00 RES FXO CMPSN 6 8 OHM 51 0 25 01121 C868G5 A1R149 31S 0103 00 RES FXD FIL M 10K 0111 51 0 ZSN 19701 5043CX10KOOJ A1R152 315 o562 00 RES FXD FILM 5 6K OHM 51 0 25N 57668 NTR25J E05K6 A1R153 315 0752 00 RES FXD FIL M 7 5K OHM 51 0 25N 57668 NTR25J E07K5 A1R154 321 0210 00 RES FXD FILM 1 SOK OHM 1t 0 ...

Page 222: ...1 0 125M TC T0 07716 CEII071500F 11111452 321 0310 00 RES FXD FILN 16 SK Olll 11 0 125M TC T0 19701 5033ED16KSOF 11111453 321 0275 00 RES FXD FILN 7 15K 0HN 11 0 125M TC T0 07716 CEII071500F 11111454 321 0310 00 RES FXD FILN 16 SK 0lll 11 0 125M TC T0 19701 5033ED16KSOF 11111455 321 0310 00 RES FXD FILN 16 SK Olll 11 0 125M TC T0 19701 5033Bt16KSOF 11111456 321 0333 00 RES FXD FILN 28 7K Olll 11 0...

Page 223: ...B NTR25J E 100E A1AS38 315 0621 RES FXD FILN 620 0HM 5l 0 25N 57668 NTR25J E620E A1RS42 315 D680 RES FXD FILN 68 OHM 5l 0 25N 57668 NTR25J E68EO A1AS43 315 0621 RES FXD FILN 620 OHM 5l 0 25N 57668 NTR25J E620E A1RS44 31H393 RES FXD FILN 39K OHM 5l 0 25N 57668 NTR25J E39KO A1RS45 31H750 RES FXD FILN 75 OHM 5l 0 25N 57668 NTR25J E75EO A1AS50 315 0471 RES FXD FILN 470 OHM 5l 0 25N 57668 NTR25J E470E ...

Page 224: ...C35K300 111R731 315 0153 00 RES FXD FIUl 15K Oll4 51 0 25N 19701 5043CX15KOOJ 111R732 315 D682 00 RES FX0 FIUl 6 81C Oll4 51 0 25N 57668 NTR25J ED K8 111R733 315 0182 00 RES FX0 FIUl 1 81C 0114 51 0 25N 57668 NTR25J E1K8 111R734 31S 0221 00 RES FXD FIUl 220 Oll4 51 0 25N 57668 NTR25J E220E 111R735 31S 0273 00 RES FXD FIUl 27K 0114 51 0 25N 57668 NTR25J E27K0 111R736 321 0217 00 RES FX0 FIUl 1 78K ...

Page 225: ...11R951 308 0555 00 RES FXD NN 5 OHM 51 3N 00213 12005 5 0 5 111R952 315 0750 00 RES FXD FIU4 75 OHM 51 0 25 57668 NTR25J E75EO 111R956 315 0302 00 RES FXO FIU4 3K OHM 51 0 25 57668 NTR25J E03KO 111R957 321 0291 00 RES FXD FIU4 10 5K OHM 11 0 125 TC TO 80009 321 0291 00 111R972 315 0S10 00 RES FXD FIU4 51 OHM 51 0 25 19701 5043CX51ROOJ 111R973 31S OS13 00 RES FXO FIU4 51K OHM 51 0 25 57668 NTR25J E...

Page 226: ...ll IIUIIIY RES 0 094 00 XD 225L 24546 OMA 07 A1N120 131 0566 00 BUS Cotll IIUIIIY RES 0 094 00 XD 225L 24546 OMA 07 A1N121 175 4594 01 CA ASSY SP ELEC 6 22 llli 5 25 L 80009 175 4594 01 A1N122 175 4598 00 CA ASSY SP ELEC 8 26 llli 7 0 L RIBBON 80009 175 4598 00 A1N141 174 0385 00 CA ASSY SP ELEC 5 22 llli 2 6 L 9 tl 80009 174 0385 QO A1N918 195 3991 01 LEAD ELECTRICAL 22 llli 3 5 L D N 80009 195 3...

Page 227: ...2 0141 02 SENICOND DVC Dl SN S1 30V 150Mll 30V 00 35 03508 OA2527 1N4152 112A1CR1263 152 0141 02 SENICOND DVC Dl SN Sl 30V 150Mll 30V D0 35 03508 0112527 1N4152 A2A1CR1264 152 0141 02 SENICOND OVC Ol SN Sl 30V 150Mll 30V D0 35 03508 OA2527 1N4152 A2A1CR1281 152 0141 02 SENICONO DVC Dl SN Sl 3DV 150Mll 30V D0 35 03508 OA2527 1N4152 A2A1CR1282 152 0141 02 SENICOND OVC Ol SN S1 3DV 150Mll 30V D0 35 0...

Page 228: ...R1204 313 1103 00 RES FXD FILN 10K 0111 51 0 2 668 TR20JE10K0 A2A1R1208 313 1201 00 RES FXD FILN 200 0111 51 0 ZN 57668 TR20JE200E A2A1R1212 313 1393 00 RES FXD FILN 39K Olll 51 0 2N 57668 TR20JE 39K A2A1R1220 304 o822 00 RES FXD CNPSN 8 2K Oltl 10l 1N 01121 688221 A2A1R1221 31S 0100 02 RES FXD CNPSN 10 Olll 51 0 25N 01121 CB1005 A2A1R1222 313 1102 00 RES FXD FILN 1K Oltl 51 0 2N 57668 TR20JED1KO ...

Page 229: ...21 0689 00 RE5 FXO FILN 24 9K OHN O Sl 0 125N TC TO 19701 5033R024K900 A2111R1359 313 1682 00 RES FXD FILN 6 BK OHM 51 0 2 57668 TR20JE 06K8 A2111R1370 321 0363 00 RES FXD FILN 59 0K OHM 11 0 125 TC TO 07716 CEII059001F A2111R1372 321 0299 00 RES FXD FILN 12 7K OHM 11 0 125N TC TO 19701 5033ED12K70F A2A1R1374 313 1103 00 RES FXD FILN 10K OHM 51 0 2 57668 TR20JE10KO A2111R1376 321 0318 03 RE5 FXD F...

Page 230: ... 0333 00 SENICOND OVC DI Slt SI 55V 200NA D0 35 07263 FDH 6012 A3CR1023 152 0141 02 SENICOtll OVC 01 SN SI 30 150MA 30V 00 35 03508 OA2527 1N4152 A3CR1028 152 0141 02 SENICOtll OVC DI SN Sl 30V 150MA 30V 00 35 03508 DA2527 1N4152 A3CR1030 152 0141 02 SENICONO OVC DI SN SI 30V 150MA 30V 00 35 03508 OA2527 1N4152 A3CR1034 152 0141 02 SENICOtll OVC 01 SN SI 30 150MA 30V 00 35 03508 OA2527 1N4152 A3CR...

Page 231: ...14 51 0 2 57668 TR20JE 03KO A3R1027 321 0431 00 RES FXD FILM 301K Olll 1l 0 125N TC TO 07716 CEII030102F A3R1028 321 0481 04 RES FXD FILM 1N 0114 0 1l 0 125N TC T2 91637 CMF55116D10003B A3R1029 313 1152 00 RES FXD FILM 1 SK 0lll 51 0 2N 57668 TR20JE01K5 A3R1030 313 1102 00 RES FXD FILM 1K OHN 51 0 2 57668 TR20JE01KO A3R1031 313 1334 00 RES FXD FILM 330K OHN 51 0 2N B0009 313 1334 00 A3R1032 321 03...

Page 232: ...8US Cllll lllNCY RES 0 094 00 X0 225L 24546 ONa 07 a3N1022 131 0566 00 BUS Cllll OtNn RES 0 094 00 X0 225L 24546 OMII 07 a3N1050 131 056 oo 8US Cllll 01114Y RES 0 094 00 X0 225L 24546 OMII 07 a3N1060 131 0566 00 8US Cllll lllNCY RES 0 094 00 X0 225L 24546 OMII 07 a3N1102 131 0566 00 BUS Cllll OtNCY RES 0 094 00 X0 225L 24546 OMII 07 a3Y1050 120 1417 00 TRIINSFORNER RF PONER HIGH FREQUENCY 54937 50...

Page 233: ...R820 FXE 100K 114R2940 313 1102 00 RES FXD FIL M 1K OHM 51 0 2 57668 TR20JE01KO 114R2945 313 1471 00 RES FXD FILM 470 OHM 51 0 2 57668 TR20JE 470E 114R297S 313 1472 00 RES FXD Fli 4 7K OHM 51 0 2 57668 TR20JE 04K7 114R2985 313 1102 00 RES FXO FILM 1K OHM 51 0 2 57668 TR20JE01KO ll4tl2alO 156 0514 11 MICROCKT DGTL DIFF 4 CHANNEL MUX SEL 80009 156 0514 11 114U2805 156 0514 11 MICROCKT DGTL DIFF 4 CH...

Page 234: ... CAP FXO NTLm 0 22UF 1ot 63V CAP FXO NTLm 0 47Uf 1ot SOV CAP FXO NTLZ0 0 22UF 1ot 63V CAP FXO NTLZ0 0 1UF 1ot 63V CAP FXO NTLZ0 0 1UF 1ot 63V CAP FXO CER OI 0 022UF 20t SOV CAP FXO ELCTLT 15UF 20t 20V CAP FXO CER OI 0 022UF 20t SOV CAP FXO CER OI 0 022UF 201 SOV CAP FXO ELCTLT 47UF 20t 2SV CAP FXO NTLZ0 0 1UF 1ot 63V CAP FXO CER OI 270PF 1ot 100Y CAP FXO NTLZ0 0 47 JF 101 SOV CAP FXO NTLZ0 0 22UF ...

Page 235: ...2527 1N4152 115CR263D 152 0141 02 SENICINI DYC Dl SN Sl 30V 150MA 30Y D0 35 03508 Dll2527 1N4152 115CR2631 152 0141 02 SENICONO DYC Dl SN SI 30V 150MA 30Y D0 35 03508 D 2527 1N4152 ll5CR2640 152 0141 0Z SENICOND DYC Dl SN Sl 30V 150MA 30Y D0 35 03508 DA2527 1N4152 115CR2770 152 0322 00 SENICOND DYC Dt SCHOTTKY BARRIER Sl 15Y 50434 5082 2672 AS 1251 131 3360 00 CONN RCPT ELEC HEIIDER RTIING 20 PIN ...

Page 236: ...KOO IISR2333 322 3235 00 RES FXD fILN 2 74K OHN 11 0 2 TC TO 57668 CAB20 fX ZIC74 115R2334 322 3193 00 RES FXD fILN 1K OHN 11 0 2 TC TO 57668 CRB20 fXE 1KOO 115R2340 313 1103 00 RES FXO FILN 10K Olll 51 0 2 57668 TR20JE10KO IISR2341 313 1103 00 RES FXD fILN 10K Olll 51 0 2 57668 TR20JE10KO IISR2342 313 1103 00 RES FXD FILN 10K Olll 51 0 2 57668 TR20JE10KO IISR2343 313 1104 00 RES FXD fILN 100K Oll...

Page 237: ...00E 115R2532 313 1683 00 RES FXD FILN 68K OHM 51 0 2N 57668 TR20JE 68K 115R2533 322 3235 00 RES FXD FILN 2 74K OHM 11 0 2 TC TO 57668 CR820 FXE 2K74 115R2534 322 3235 00 RES FXD FILN 2 74K OHM 11 0 2 TC TO 57668 CR820 FXE 2K74 115R2535 322 3235 00 RES FXO FILN 2 74K OHM 11 0 2N TC TO 57668 CR820 FXE 2K74 115R2536 313 1103 00 RES FXD FILN 10K 0HM 51 0 2 57668 TR20JE10KO 115R2537 313 1102 00 RES FXD...

Page 238: ...1 0608 00 TERNINIIL PIN 0 365 LX0 025 BRZ GLD PL 22526 48283 036 115TP2420 131 0608 00 TERNINIIL PIN 0 365 LX0 025 BRZ GLD PL 22526 48283 036 115TP2421 131 0608 00 TERNINIIL PIN 0 365 LX0 025 BRZ GLD PL 22526 48283 036 115TP2701 131 0608 00 TERNINIIL PIN 0 365 LX0 025 BRZ GLD PL 22526 48283 036 115U2101 156 1589 00 NICROCKT LINEIIR IIAC 12 BIT HIGH SPEED NONO 06665 DIIC312A 115U2140 156 1342 01 NI...

Page 239: ...97 ADVISE 116R3018 311 2318 00 RES VIIR tONl 5K OHM 301 0 SN 32997 ADVISE 116R3019 311 2316 00 RES VAR tONl 2K OHM 201 0 SN 32997 ADVISE 116111 CIRCUIT BO IISSY SYNCHRONIZER 1161110001 281 G909 00 CIIP FXO CER Ol 0 022UF 201 50V 54583 NA12X7R1H223M T A61110002 281 0909 00 CIIP FXD CER Ol 0 022UF 201 50V 54583 NA12X7R1H223M T 1161110019 281 0909 00 CIIP FXD CER DI 0 022UF 201 50V 54583 NA12X7R1H223...

Page 240: ... QLMP 1487 A6A1053002 150 1160 00 LT ENITTllli 010 GREEN 50434 QLMP 1587 A6A1053003 150 1160 00 LT ENITTllli 010 GREEN 50434 QLMP 1587 A6A1053004 150 1160 00 LT ENITTllli 010 GREEN 50434 QLMP 1587 A6A1053005 150 1160 00 LT ENITTllli 010 GREEN 50434 OLMP 1587 A6A1053006 150 1161 00 LT ENITTllli 010 YELLON 50434 OLMP 1487 A6A1053007 150 1160 00 LT ENITTllli 010 GREEN 50434 OLMP 1587 A6A1053008 150 1...

Page 241: ...NORM OPEN 80009 260 2280 00 11611153012 260 2280 00 SN PUSH BUTTON MINI NOM SPST NORM OPEN 80009 260 2280 00 11611153013 260 2283 00 SNITCH ROTARY VOLTS OIV 80009 260 2283 00 A6A153014 260 2280 00 SN PUSH BUTTON MINI MOM SPST NORM OPEN 80009 260 2280 00 11611153015 260 2280 00 SN PUSH BUTTON MINI MOM SPST NORM OPEN 80009 260 2280 00 11611153016 260 2280 00 SN PllSH BUTTON MINI MOM SPST NORM OPEN 8...

Page 242: ... 222MAA A9C1990 285 1096 DO CAP FXD PLASTIC 1UF 101 50V 14752 23081A105K A9C1991 281 0826 00 CAP FXD CER OI 2200PF 5l 100V 20932 401EM100A0222K A9CR1894 152 0400 00 SEMICOND DVC OI RECT SI 400V 1A 04713 SR1977K A9CR1895 152 0400 00 SEMICOND DVC DI RECT SI 400V 1A 04713 SR1977K A9CR1915 152 0061 00 SEMICOND DVC DI SN SI 175V 0 1A D0 35 07263 fDH2161 A9CR1930 152 0061 00 SEMICOND DVC DI SN SI 175V 0...

Page 243: ...0 25N 01121 CB1015 119R1910 321 0271 00 RES FXD FILN 6 49K OHM 11 0 125 TC TO 07716 CEAD64900F 119R1911 321 0245 00 RES FXD FILN 3 48K OHM 11 0 125 TC TO 19701 5033ED3K48F 119R1913 315 D101 03 RES FXD OIPSN 100 OHM 51 0 25 01121 CB1015 119R1920 315 D152 00 RES FXD FILN 1 SK OHM 51 0 25 57668 NTR2 1 11K 119R1922 315 0331 03 RES FXD OIPSN 330 OHM 51 0 25N 01121 CB3315 119R1941 313 1201 00 RES FXD FI...

Page 244: ...lll 11 0 1291 TC TO RES FXD FILN 75 Olll 5l 0 2N RES VIIR tlNIN TRNR SK Olll 0 5M RES fXD FILN 8 87K Olll 11 0 1291 TC TO RES FXD FILN 2 2K Olll 5l 0 2N RES FXD FILN 10K Olll 5l 0 2N RES FXD fllN 10K Olll 5l 0 2N MICROCKT LINEAR IIIOULATOR OEMOOULATOR MICROCKT LINEIIR IIIOULATOR OEMOOULATOR SENICOIIJ DYC Dl ZEN 51 2V 5l 0 4N 00 7 CAP FXD CER DI SOOOPf 100 01 100 FUS CIIRTRIDG 3IIG 211 2SOV FIIST B...

Page 245: ...lookup table for the schematic diagram and corresponding component locator illustration The Replaceable Electrical Parts list is arranged by assemblies in numerical sequence the components are listed by component number see following illustration for constructing a component number Function Block Title Test Voltage Heal Sink PI O Part of A ci rcuit board ____ Assembly Number ___ _ _ ___ 0 xxxx xx ...

Page 246: ...ANCE MULTIPLIER TOLERANCE TANTALUM VOLTAGE over 10 pF under 10 pF RATING BLACK 0 1 1 20 2 pF 4VDC BROWN 1 10 1 10 1 0 1 pF 6VDC RED 2 10 2 or 100 2 102 or 100 2 10VDC ORANGE 3 10 3 or 1 K 3 10 3 or 1000 3 15VDC YELLOW 4 10 4 or 10 K 4 10 4 or 10 000 100 9 20VDC GREEN 5 10 5 or 100 K 10 5 or 100 000 5 0 5 pF 25VDC BLUE 6 10 6 or 1 M 10 6 or 1 000 000 35VDC VIOLET 7 1 10 50VDC GRAY B 2 B0 20 0 25 pF...

Page 247: ...SINGLE E C B E PLASTIC CASE TRANSISTORS DUAL FETS 11 9 INDEX INDEX 4 7 _ INTEGRATED CIRCUITS ____ INDEX 3 TERMINAL REGULATORS POWER FETS REF G w IN D OUT S INDEX HYBRIDS LEAD CONFIGURATIONS AND CASE STYLES ARE TYPICAL BUT MAY VARY DUE TO VENDOR CHANGES OR INSTRUMENT MODIFICATIONS 4917 33 6019 99 Figure 10 2 Semiconductor lead configurations I o ...

Page 248: ... _t 0 PU LL OU T PAGE TABS FOR CI RC UI T BOARD ILLUSTR ATION 5 Locate the Component on the Circuit Board n i a In the m anual locate and pull out the tabbed page w hose title and Assembly Number correspond with the desired circuit board This information is on the back side of the tabs b Using the Circuit Number and grid coordi nates locate the component on the Circuit Board Illustrati on In the c...

Page 249: ...READOUT 0 ACKNOWLEDGE CH 2 CH 2 OUT TRACE SEP __ ATTENUATOR CH 2 DISPLAY HORIZONTAL SELECTS AND PREAMP MAG LATCH CH 2 SIG Cll SEQUENCER SWEEP BATES RELAYS 0 XT Z TN CH 2 TRIG 0 HOLOOFF L CH 2 IN 0 PICKOFF DLY SELECT AU 6 CD I Z AXIS Z AXIS DC AMPLIFIER RESTORER CRT coo A GATE OUT 0 HUI 0 0 l irl I B GATE CD v i 2 r 2 CH 1 I ATTENUATOR CH 1 SIB A BATE AND TRIGGERS A MAG LATCH CH 1 SWEEP __ 2 RELAYS...

Page 250: ... 0 00 0 000 Figure 10 5 AS Control board 6019 94 6017 17 Static Sensitive Devices t I SeeMamtenanceSectlon COMPONENT NUMBER EXAMPLE Component Number fil RIL 4 Msemo 1 _ s ric Num Jer Subisseml ly Number Number fused CMssis mounted componerrts hne no t ssembl Number prefi1 seeeniJolRep ace i tieElectricalPa11s L is1 ...

Page 251: ...1 U2501 12 C2450 12 R2006 2 R2417 2 R2701 2 U2510 2 C2470 1 R2007 2 R2420 2 R2702 2 U2510 12 C2501 12 R2010 2 R2421 2 R2703 2 U2520 2 C2510 12 R2011 2 R2422 2 R2704 2 U2520 12 C2511 2 R2012 2 R2430 2 R2705 2 U2521 2 C2520 12 R2013 2 R2431 2 R2706 2 U2521 12 C2521 2 R2070 1 R2432 2 R2707 2 U2530 2 C2530 12 R2101 2 R2433 2 R2708 2 U2530 12 C2550 1 R2102 2 R2434 2 R2709 2 U2540 1 C2551 1 R2103 2 R244...

Page 252: ...R2344 BD 2G U2440B 2F 2G R2345 5C 2G U2450 6C 2H CR2070 BF 1K R2346 4C 2G U2450 7E 2H CR2071 BF 1K R2370 BF 2K U2460 9K 2J CR2170 BF 1K R2371 BG 2K U2540A 2B 3G CR2370 BL 2K R2440 BD 2F U2540B 2C 3G CR2371 BL 2K R2441 BD 2F U2540C 100 3G CR2770 BL 4K R2442 9D 2G U25400 100 3G R2443 BD 2G U2540E 2J 3G J251 3A 1D R2444 2D 2G U2540F 2G 3G J500 1N 1E R2470 9G 2K U2550 5J 3H J500 6N 1E R2471 9G 2K U256...

Page 253: ... rerl Mat lcHblo ElsctrJeol Porto LJ t IQ Static Sensitive Devices Z I SeeMalntenanceSectian 2445A 2455A I A2U0 I U Z C U D c C PARTIAL A5 CONTF OL fill 0 3H 0 _ PORTSrNH O C IX INH 0 J lt f 01 1 g III I OISP I I 1300 15 i1 0 0 1 r3A l 2 e t ao alll 1 2 fOHI I u13 4 rfo 0 t 1 PROCESSOR AND DIGITAL CONTROL 1 ...

Page 254: ...0A 2K 2E R2331 3M 2E R2604 6D 3B U2430B 2M 2E CR2230 2M 2E R2332 3L 2E R2610 2F 3B U2430C 3K 2E CR2231 3N 2E R2333 3K 2F R2611 3G 3C U2430D 2M 2E CR2232 3L 2F R2334 3K 2F R2612 7N 4C U2501 5F 38 CR2233 3L 2F R2340 1C 2F R2613 BN 4C U2510 3G 3C CR2420 SM 2D R2341 1C 2F R2620 7M 4C U2520A 7K 3D CR2610 3N 4C R2401 3D 2A R2621 7L 4C U2520B 6M 3D CR2620 7L 4C R2402 3D 2A R2622 7M 4D U2521 6J 3E CR2621 ...

Page 255: ...CM R20U V 111 F 3011C 112010 10VAE SI s 1 C2010 2012 7 F 10 0K DAC _________ INOICUES TIE GRID COOFIDitl O Tlc ON ANOTHER SC EMAT C SEE OU GRAM 4 FORPOl ER OISTRI9UTIO l C1 u J ount a ca111Corl nt l ve no An Jlll Jly NuOlb r i refl sH nd or Rtlpl cn bl El ctrlc lParta lJst R Static Sensitive Devices r JI 5 M Jnt nimceSection 115 1121011 ANALOG CONTROL W ...

Page 256: ...1 2 3 4 A B S300 ctm 3ID21 DS3013L S3003r 0S3014 DS3004r 1cm3I115l DS3015a DS3005 S300 D53016 S3017 D53006 Q R3ID8J D53017 C D Figure 10 6 A Front Panel board E S303 S303 F 6019 93 6017 19 ...

Page 257: ... CR3012 3 D53007 3 D53045 3 S3028 3 CR3013 3 D53008 3 D53046 3 S3029 3 CR3014 3 D53009 3 D53047 3 S3030 3 CR3015 3 D53010 3 D53048 3 S3031 3 CR3016 3 D53011 3 D53049 3 S3032 3 CR3017 3 D53012 3 R3001 3 S3033 3 CR3018 3 D53013 3 R3002 3 S3034 3 CR3019 3 D53014 3 R3003 3 U3001 3 CR3020 3 D53015 3 R3004 3 U3001 12 CR3021 3 D53016 3 R3005 3 U3002 3 CR3022 3 D53017 3 R3006 3 U3002 12 CR3023 3 D53018 3 ...

Page 258: ...S3O25 10D 2E CR3O21 BD 3B DS3O19 4G 2B R3OO2 5J 2D S3O26 lOC 3E CR3O22 7D 2B DS3O2O 4H 3C R3OO2 6G 2D S3O27 lOC 3E CR3O23 7D 3B DS3O21 4L 1D R3OO2 6H 2D S3O2B 2B 4E CR3O24 6D 3C DS3O22 4G 1D R3OO2 BH 2D S3O29 BD 2E CR3O25 5D 3C DS3O23 4H 3D R3OO2 9G 2D S3O3O 1OB 3E CR3O26 9D c DS3O24 7L 2E R3OO3 1G 2E S3O31 1OB 3E CR3O27 6D 3C DS3O25 7K 2E R3OO3 lJ 2E S3O32 2C 2E CR3O28 9D 1D DS3O26 7K 2E R3OO3 1K...

Page 259: ...01 CDl 2 J CA3022 CDL 53001 53002 53003 53012 EJ B r f AO f7 f C 19019 w S3023 53020 59010 EJ EJ ADIi NOTES I l IHOICATES T GRIO COCHllNATE ON OTl til scHE TlC 5EEOUGR_ Of1P0WEROISTRI8UTIOH 2445A 2455A S302 i 8 w 131 I PARTIAL A6 FFUIT PAl fEL IOAAO I 3003 oo l os ou TAlGGEA l cD 0 0 EJ TRIGGER l cD I TArnooLv I TRIGGER r FRONT PANEL POTS 1 1 i 11 1 1 I a ce J 1 1111 f l 1 4 J I11 I Jll 1 II I R S...

Page 260: ...6017 25 _ _J z 0 I I SI N D 100 _ _J z 0 M N p D5101 0 s1027 P181 WHl1 AB 4 rf_r AB SCALE ILLUMINATION i I I I I a A11 CH1 ATTENUATOR N StaticSensitiveDevices t I SeeM mten mce Sect1on COMPONENT NUIIBElf EXAMPLE Component Number m mbly _j i L s c 7 tic H um basR mbly Numbtt Number l us Cti1ssis mountedcomJX111e lhh11 f n0 l sembly Number prefi eoc o1Repl1ce1bleElt clri IP1rhL t 1 1 ...

Page 261: ...7 5 U130 11 U600 11 W101 11 R939 5 U140 4 U650 5 W102 11 R940 5 U140 11 U650 11 W103 11 R941 5 U150 4 U700 5 W104 11 R942 5 U150 11 U700 11 W105 11 R943 5 U160 4 U735 6 W106 6 R944 5 U160 11 UBOO 6 W107 5 R945 5 U165 4 UBOO 11 W108 5 R947 5 U165 5 U850 5 W109 11 R950 5 U165 11 UB50 11 W112 5 R951 11 U170 4 U860 5 W120 5 R952 5 U170 11 UB60 6 W121 11 R956 6 U1B0 4 UB60 11 W122 5 R957 6 U1B0 11 U900...

Page 262: ...BB R192 3H 1J Ul 10 4E 7B C301 10A 1A J511 10P 1D R193 3H lE U120 5E 7C C302 9A 38 J511 2A 1D R194 3H 1J U130A 4F 7C C310 SH 1B J511 BA 1D R195 BL 3E U130B 5F 7C C311 2H lC J512 3A 1J R196 BL 3E U130C 5K 7C C329 9J 2D R197 BL 3F U130D 4M 7C C332 9J 2D Ll 15 2N 7E R198 BK 3F U130E 5M 7C C460 7N 4E R199 BL 3F U130F 4M 7C C464 7P 3E LR180 3M 5E R200 7H 4C U130G 58 7C C466 SN 3E LR280 6M 4E R201 7H 38...

Page 263: ...G J 00 f 0 u1 JCI Po r 1 e B R A 51 7 ISK TRIG PICKOFF n A IHPEAS MAY BE REMOVED ON S0HEO Tl mS SEEitffERC0 NNECTIONDJ lGAAMFCIIILWE NAMES NOTCONNCCTEDTOTIIC HYl R IDSir TEFINALCIACUITRY HYBRIDSOCKETHOLEONECB ISUSEDASANINTERLI YER r EEOTHAOUGH ATTENUATOAS AND PAEAMPS ...

Page 264: ...C 2J U550B SR 1F CB49 10B 10G 0550 BR 2F R707 3P 10C U550C SP lF CB51 3K 10F 0645 6H 7G R708 3R 98 U550D SP 1F CB52 3K lOE 0709 2P 10D R709 2P 10B U550E 9P 1F C853 3K lOF 0710 2N lOE R710 1M 10F U650 2G 4K CB54 3K 10E 0741 4P BD R713 2M 10E U700 2N 9D C907 5N 9K R723 3L lOE U850A BD 9F C908 6N 10K R112 1A 7L R724 3M 10E UB50B 6M 9F C912 5M 10G R152 2D 2F R736 2M 10G U850C 3L 9F C941 7P 7L R153 2D ...

Page 265: ...OFF CIRCVITRYl IDISPI AY SEQUENCER I Static Sensitive oevices Sl IIM Jnten11ncesect an 1 ce30 J lOOO I I I P T M A1 AlH BOAfl I 7 HOLDOFF CIRCUITRY DISPLAY SEQUENCER U550E B SWEEP c i 5 Jua OlYREl O r i Cll VfEFl 13 I 1 Ly 1 1 1 TRIGGERING A B SWEEPS ...

Page 266: ...Chassis mounted components have no Assembly Number prefix see end of Replaceable Electrical Parts List A14 DYNAMIC CENTERING BOARD CIRCUIT SCHEM CIRCUIT SCHEM CIRCUIT SCHEM CIRCUIT SCHEM CIRCUIT SCHEM CIRCUIT NUMBER NUMBER NUMBER NUMBER NUMBER NUMBER NUMBER NUMBER NUMBER NUMBER NUMBER C3401 6 R3403 6 R3408 6 U3402 6 J141 6 R3404 6 R3409 6 VR3401 6 J141 6 R3405 6 R3410 6 R3401 6 R3406 6 R3411 6 R34...

Page 267: ...3 1L 7H U4858 2D 4L CR484 3D 4L R404 3J 6J R624 1M 7G U485C 2C 4L CR48S 3C 4L R40S 2J 6J R637 3L BK U485D 2C 4L CR49S 2E 3L R410 2J 6J R638 3L 7K U600 1L 7J CR600 4J 7K R412 2F SG R639 3J 7K U735A SJ 9E CR601 3M BK R416 2F 4F R642 4J SK U735B 6H 9E CR616 4G 7L R6SO 4J SK U735C 6H 9E CR619 4M 7G R470 4C 4L R6S9 3K 7K U73SD 6H 9E CR620 3N BH R471 3D 4L R731 SH BE U73SE 6H 9E CR621 3N BH R476 3F 4K R...

Page 268: ...ve Devices J JI See Mainten11nce SecUon I DYNAMIC CENTERING 2445A 2455A R3405 A3411 I A 14 OYNAMIC CENTERING BOAFO J141 PU1 7G PARTIAL Ai MAIN BOAR CII06 CLB L628 51 9nf l Wi17 A620 4 7 CHANNEL SWITCH AND OUTPUT AMPLIFIERS 0 2445A ...

Page 269: ... 7H U485B 2D 4L CR484 3D 4L R404 3J 6J R624 1M 7G U485C 2C 4L CR485 3C 4L R405 2J 6J R637 3L BK U485D 2C 4L CR495 2E 3L R410 2J 6J R638 3L 7K U600 1L 7J CR600 4J 7K R412 2F 5G R639 3J 7K U735A 5J 9E CR601 3M BK R416 2F 4F R642 4J 5K U735B 6H 9E CR616 4G 7L R417 2F 4G R650 4J 5K U735C 6H 9E CR619 4M 7G R470 4C 4L R659 3K 7K U735D 6H 9E CR620 3N SH R471 3D 4L R731 5H SE U735E 6H 9E CR621 3N SH R476 ...

Page 270: ...I DYHAM C CEJIITERDIG A3 106 113 tOS 113 103 P1 1 Jt t fc3 101 1 1sv I le 1 1l If L6l0 L607 2 5 H 1110nH L609 w 2 t5 H etOnH L608 360nH r t 7S t7 C601 f1605 20 90 100 160nH B COMP A COMP e L628 51 tljr H W9l7 VERT SIG 0 i FROM IJ 111 11 i0 0 1 Js12 I P 1 j10 z a o oo ii2 PARTIAL Ai MAIN BOAAO 2445A 2455A CHANNEL SWITCH AND OUTPUT AMPLIFIERS 0 2455A ...

Page 271: ...A B C D E F 2 3 4 I II co 6019 91 6017 20 Figure 10 9 A4 Reedout board ...

Page 272: ...940 12 R2921 7 U2850 12 U2960 7 C2950 12 R2922 7 U2855 7 U2960 12 C2960 12 R2923 7 U2855 12 U2965 7 C2970 12 R2924 7 U2860 7 U2965 12 C2980 12 R2925 7 U2860 12 U2970 7 C2990 12 R2926 7 U2865 7 U2970 12 J401 7 R2927 7 U2870 7 U29B0 7 J402 7 R2928 7 U2870 12 U2980 12 R2805 12 R2929 7 U2880 7 U2985 7 R2830 7 R2930 7 U2880 12 U2985 12 R2841 7 R2931 7 U2885 7 U2990 7 R2842 7 R2932 7 U2885 12 U2990 12 R...

Page 273: ...BG 3E R291O 1H 4A U283O 6B lC U296SC 4E 3E R2911 1H 4A U283SA SF 2C U2970A 7L 3E R2912 2J 4A U2B3SB 4D 2C U297OB 7G 3E R2913 2K 4A U2B3SC 7F 2C U2970C 6G 3E R2914 2K 4B U2B3SD 2E 2C U297OD 7F 3E R291S 3K 4B U2BSOA 7C 1D U29B0A BG 2F R2916 SD 2C U28SOB 7D 1D U29BOB 7N 2F R2917 SD 2C U2BSSA 1B 1D U298OC 7M 2F R2918 4L 4B U28SSB SE 1D U29BOD SE 2F R2919 4L 4B U28SSC 3E 1D U298S 7E 3F R292O 4K 3B U28S...

Page 274: ... nU ave f D lu e11bly Nufl Jer praf H nd of Rephcuble Electrical Part U5t A2928 R2929 A29t5 7K A 71 2K DOT START GOVERNOR A2913 t lJK Ft 923 2 741 oo J JNl JIC ATES THE GRID COMOl l TE ON ANOTHER ScttEIO TIC SEE OI AGRJ M 4 FORPIJIIEA OISTAIBUTION flOOO I tO T tO IO IIOAJ R Static Sensitive Devices Jj See M ttJnt enance Section YHOR D ri z 411t 2 SA _ r 00_ 7rn 2G ITI0 26 2A DDT CYCLE GENERATOR RE...

Page 275: ...851 01852 _R1853 R1854 R1855 R1856 R1857 R18 6 U1956 D t BZ Z R1873 C1886 T1970 R 1 880 Gi e94 E R1s f C1888 01890 R1693 92 J904 J903 1 J902 U1890 9 0 f R1 994 C1971 C1972 L1974 3831 87A 6017 18 Figure 10 10 A9 Hlgh Voltage board F ...

Page 276: ...1 8 R1858 8 R1945 C1 890 J902 8 R1864 R1950 C189 7 8 J903 8 R1870 R1951 8 C191 2 8 J904 8 R1871 8 R1 952 8 C1 9 15 8 L19 21 8 R1872 8 A1 953 8 C1932 8 L1974 8 R1873 8 R1971 8 C1950 8 P191 8 R1878 8 A1972 8 C l 951 8 Pl 91 8 A18BO 8 R1973 8 C1971 8 P19 1 12 R JBBI 8 Fl 1990 8 Cl 972 8 Q 185 1 8 R1890 8 A1991 8 C1973 8 0 1852 8 R1891 8 A1992 8 C1980 B 01890 B A1892 B R1994 8 C1990 8 0 1980 B R1893 B...

Page 277: ...BD 3D L1974 9B 4E R1881 BE 3E R1992 9E 3E C1951 7B 3D R1890 4F 2E R1994 BF 4E C1971 BF 4D P191 2D 4B R1891 4F 2E C1972 9B 4E P191 7A 4B R1892 4E 2E T1970 BC 3D C1973 6D 4D R1893 3E 2E C19BO BB 3E 01851 SE lC R1B95 3F 1A U1830 6G 2B C1990 9D 3F 01852 SE 1D R1B96 3G 2A U1B90A 8D 2E C1991 BF 4E 01890 4G lE R1897 3G 1B U1890B 3F 2E 01980 BF 3E R1898 4H lE U1956A 7E 4C CR1894 BC lE 01981 BB 3E R1901 6H...

Page 278: ... LJ r r j f 1812 m_ 1 W 900 Fl192ii J 001 001 001 I d c P if I J 001 001 00 Joo i I L t ooot ooott I 61 006 I 5 11 5 11 I I I I I PARTIAL A9 HIGH VOLTAGE BOARD I w o 900V 2 70 J T 9 f 7 9 EDosso D CATHODE SUPPLY n l I J I 11900 SEEDUGRAM 4 FDRPOIERDISTRIBl TI COMPONENT NUMBER EXAMPLE Component Number Cflessis ounhd components n no Assemll lY M rmoer prefh see end Of ReQl bJe El d r icel Perts us t...

Page 279: ...2445A 2455A Service C D E H J 4 ...

Page 280: ...2445A 2455A Service A B C F G H J 5 G 6 T1020 7 A3 8 t Figure 10 11 A2 Regulator and A3 lnverter boards ...

Page 281: ...http S j ...

Page 282: ...l 111 9 C1065 9 CR1110 9 R1022 9 R1112 9 C1066 9 CR1113 9 R1023 9 R1113 9 C1067 9 CR1114 9 R1024 9 R1114 9 C1071 9 CR1115 9 R1025 9 R1115 9 C1072 9 CR1116 9 R1027 9 R1129 9 C1075 9 CR1121 9 R1 028 9 R1130 9 C1101 9 CR1122 9 R1029 9 RT1110 9 C1102 9 CR1123 9 R1030 9 T1020 9 C1110 9 CR1124 9 R1031 9 T1050 9 C1111 9 CR1131 9 R1032 9 T1060 9 C1112 9 CR1132 9 R1033 9 U1029 9 C1112 9 F1101 9 R1034 9 U10...

Page 283: ... 6L 6E CR1116 7M 7B R1025 3G BH C1066 BG 7H CR1121 6M 7D R1027 3M BJ T1020 6E 6J C1067 9F 7E CR1122 6M 7D R1028 3M BE T1050 6F 6H C1071 6H 7F CR1123 6M BO R1029 3N BF T1060 6L 6C C1072 7J BF CR1124 6M BO R1030 6H 7F C1075 BJ 6E CR1131 SM 8D R1031 4L BF U1029 3N BE C1101 9M 6B CR1132 SM BO R1032 4L SH U1030 SK BG Cl 102 9M 6A R1033 SL SH U1040 4M BE C1110 9M 6B F1101 BN 6B R1034 3L BH U1062A BH 7E ...

Page 284: ...Nl l CAJU V J UGf THRESPf CTTO u tNOI UTES VIJ UGEIII TH RESPf ClTD 1 1 1 1 o g tJ t I Rl 020 l 70K Q1050 I Alf 2 CIH030 r 111073 AlOE il V R I V1H06l r H 62 INVERTER DRIVE I Hr i r ar f rs 00 j t C1O75 U1062A U1066A 1060 339 r 0 66 0026CN Rt 4 0 7 60 At Al su 1 2 C L 9 0 13 1 so A1 t A10 7 o __ II C 2 V f lj 5 d r u1064A o A i 2 s u 1052s u10sse L i IH063 1c oe 013 U1064B 339 OQ26 J 1 1070 Cl X I...

Page 285: ...J234A 9B 3H R1273 7J 3G U1260 5J 4F C1374 BG 2G R1274 7K 3G U1270A 8J 3J C1400 6C 3H L1402 9C 4H R1280 6K 3G U1270B BJ 3J C1402 9C 4H R1281 6K 3G U1270C 11 F 3J 01220 1E 4E R1282 6K 2G U1270D 10H 3J CR1220 2E 3D 01221 1D 4E R1283 6J 4G U1270 6C 3J CR1221 2L 2D 01222 2C 3E R1284 7J 2H U1281A 2D 3D CR1241 3G 3F 01223 1D 3E R1285 7J 2H U1281B 4F 3D CR1242 3F 3E 01240 3G 4F R1286 6K 2G U1281 7C 3D CR1...

Page 286: ...R UP oaAv 1 I I I 1 s VOLT REGULATOR 1 I I iit _ 1 1 e VOLT REGULATOR I _ L I U1270C _ I i 32 10 _ ___ _ I i r u LJ I 15 VOLT REGILATOR 12 1il i 1 _ _ __________ _____________________ __ il A 2 M _ _ _ _ _ le____________________________ 1 1 ui1 LOW VOLTAGE REGULATORS 49 2445A 2455A ...

Page 287: ...K C21B 7C 3D C967 1L 10L U700 4G 9D C219 7C 3D C973 7L 10L LR101 5A 6C UBOO 4J 9F C220 2C 3C C980 3K 7L LR107 5C 7E U850 4K 9F C221 2C 3D C9BB 6J BL LR201 5B 6C U860 4K 7G C225 4B 3C C990 2L 9L LR21B 6C 3D U900 4H 10H C307 6D 3B LR219 6C 3E U910 2F 10F C325 3D 3C CR107 6B 5J U950 4J 9L C336 3D 1C CR807 4J 9G 0700 1G 10C U975 3K 7L C415 7L 5G CRB11 2H BG U9BO 3K 7L C458 2L 3F CR987 4J 9L R125 3B 7D...

Page 288: ...I PART Al Ai IIAHI BOARD I 2445A 2455A 0 Q Static Sensitive Devices bl 51 1 ofaintenanceSe ctJOn A951 s o POWER DISTRIBUTION A 1J ...

Page 289: ...1J U2521 7G 3E C2101 7C 18 C2610 BB 4C U2201 7E 28 U2530 7G 3E C2111 7C 1C C2620 BC 3C U2210 7D 2C U2540 7H 3G C2112 BC 1C C2632 BC 3F U2220 7E 2D U2550 7G 3H C2113 BB 1C C2650 7C 4H U2240 7F 2G U2601 7G 4B C2160 7C 1J C2660 7C 4J U2250 7E 2H U2620 6C 4D C2220 78 2D C2740 BB 4G U2260 7E 2J U2630 6C 4E C2221 6C 2E U2301 7E 2B U2640 7G 4G C2320 BB 2D J251 6B 1D U2401 7G 28 U2650 7G 4H C2331 68 2E J6...

Page 290: ...mounted components n11ve no Assembly Number prefix see end of Replaceable Electrical Perts list CZ Static Sensitive Devices J I See Maintenance Sect1on INDICATES THE GRID COORDINATE ON ANOTHER SCHEMATIC W2070 TP2070 I GNDC n U2800 2 4 5 U2805 1 2 3 4 5 U2850 2 13 U2860 9 11 19 U2865 15 i 13 U2920 22 23 g i 10 U2965 1 12 13 U2995 1 2 l svo c PARTIAL A9 HIGH Va TAGE BOARD PARTI AL A4 READOUT BOAAO 5...

Page 291: ... 6 3 PINS 0 TEST CONNECTORS J OO t 9 t t wHi I Gi lll 1 LJ LJ LJ LJ PiOOD r B n n n J11 Ji01I r c i 2 A E F G E3PINS0 TSi17 7 0 A W11 I 2 JP101A 0 I IA12 CH2 ATTENUATORASSEl IBLY I I 77 iP101B TSB B7 GNO 97 J i 0 I Jf0 0 ___ _ _ _ _________ J f I i l 6 4 A e 211 ____ i1 nu 1 4211 a L _ _ _ l o v t 7 y 1 LR15 4 I A13 VERTICAL TERMINATION ASSEMBLY J9017 0 1 1 I P141 IJ1 1 1 I 2 f 15V f 0 LJf I A14 D...

Page 292: ...4 9 5B P901 B 5H R3019 3 4M J4 4 10A P205 9 6B P901 B 6L J5 4 7P P206 9 6B P902 B 2H S90 9 6A J6 6 9A P207 9 6B P903 B 4H S1020 9 5E J7 5 6S P231 9 5E JB 5 4S P232 9 9P R112 5 1A V900 B 1K J12 5 1A P233 9 4P R134 4 4L P234 9 7P R301 4 10A LR1513 B 5L P251 10 7N R302 4 9A W10 4 2G LR1514 B 5L P411 12 3A R304 4 10A W1l 4 7G P411 7 1A R311 4 9A W651 3 9N P10 4 2G P411 7 1P R351 5 4B W900 B 3H P11 4 7...

Page 293: ...HORIZONTAL R3401 http CENTERING R2918 VOLT REF ADJ R1292 3831 68 6019 98 A13 CRT TERMINATION A14 DYNAMIC CENTERING and A2 REGULATOR ADJUSTMENT LOCATIONS 1 ...

Page 294: ... AXIS TRANSIENT RESPONSE R1834 SN BB022019 BELOW EDGE FOCUS R1864 Y AXIS ALIGNMENT R1848 Lr 1 c1 1 1 I l __r 1 l l n T 8 _ j I I h 1 _ A9 HIGH VOLTAGE ADJUSTMENT LOCATIONS 2 r GRID BIAS R1878 1 I l I I r r I I 3831 69A 6017 22 ...

Page 295: ...S j DAC REF R2010 AS CONTROL ADJUSTMENT LOCATIONS 3 6019 96 601 7 23 ...

Page 296: ... CADJ C205 SOmvCADJ C105 000000000000 X1 GAIN R860 g VERT o READOUT JITTER g R618 0 0 0 0 0 0 0 000000000000 A1 MAIN ADJUSTMENT LOCATIONS 4 0000000000000 0000000000000 6017 24 8ANDWIDTH LIMIT L644 GAIN R638 ...

Page 297: ...ast significant data bits clock DAC MSB CLK DAC most significant data bits clock DAC MUX1 IN DAC multiplexer 1 input DAC MUXO INH DAC multiplexer 0 inhibit DAC MUX1 INH DAC multiplexer 1 inhibit DAC MUX2 INH DAC multiplexer 2 inhibit DAC MUX1 A0 DAC multiplexer 1 address bit 0 DAC MUX1 A1 DAC multiplexer 1 address bit 1 DAC MUX1 A2 DAC multiplexer 1 address bit 2 DAC MUX1 IN DAC multiplexer 1 inpu...

Page 298: ...NG PARTS Attaching Parts always appear in the same indentation as the item it mounts while the detail parts are indented to the right Indented items are part of and included with the next higher indt ntation Attaching parts must be purchased separately unless otherwise specified ABBREVIATIONS INCH ELCTRN ELECTRON IN INCH SE SINGLE END NUMBER SIZE ELEC ELECTRICAL INCAND INCANDESCENT SECT SECTION AC...

Page 299: ...ME MFG CO INC NIDEC AMERICA CORP PIITELEC CEM ITALY SCHRAMM PUlSTICS 1 I 0 Address 1818 CHRISTINA ST 3628 CRENSHIIN BLVD 5825 NTRIPP AVE 16730 EJOHNSON DRIVE PO BOK 3588 RICHARDS AVE 9301 ALLEN OR 2200 US HNY 27 SOUTH PO BOK 1980 30 HUNTER LANE 2620 ENDRESS PUlCE PO BOK 0 8081 NIILUlCE RO 755 EASTGIITE BLVD 5300 EDINA INDUSTRIAL BLVD 2000 S BATAVIA AVE 114 OLD STATE RO PO BOK 14460 446 MORGAN ST S...

Page 300: ...01 1 SPRING FILTER 1 32 L CU BE 80009 214 3374 01 ENO ATTACHING PARTS 9 337 2926 03 1 SHLD IMPLDSION 4 44 X3 67 X0 06 CLEAR 80009 337 2926 03 378 0199 03 1 FILTER LT CRT BWE 3 415 X4 105 X0 030 TH TK1634 378019903 K ACRYLIC PLEXIGLAS 10 334 4378 01 1 MARKER IOENT MKO PROBE POKER 80009 334 4378 01 11 334 4381 02 1 MARKER IOENT MKD CONNECTOR IDENT 80009 334 4381 02 12 334 4377 04 1 MARKER IOENT MKO ...

Page 301: ... 2445A ILLUSTRATIONS 2445A 2455A SERVICE 15 19 ...

Page 302: ...29 31 tt 11 2445A ILL 2445A 24 S TRATIONS SERVICE ...

Page 303: ...3 ORDER BY OESCR 13 210 0012 00 13 KASHER LOCK 0 384 ID INTL 0 022 THK STL 09772 ORDER BY OESCR ENO ATTACHING PARTS 14 1 CIRCUIT BO ASSY FRONT PANEL SEE A6A1 REPL 15 384 1684 01 2 SHAFT VARIABLE 2 16 L PDLYCARBONATE 80009 384 1684 01 16 384 1683 01 1 SHAFT VARIABLE 2 36 L POLYCARBONATE 80009 384 1683 01 17 366 1516 00 20 PUSH BUTTON IVORY GRAY 0 3 X0 665 H SQ 80009 366 1516 00 18 366 1538 00 10 PU...

Page 304: ...SEM NSHR 4 40 X0 312 PNH STL T9 01536 ORDER SY OESCR 21 386 4863 00 1 SUPPORT CKT 80 80009 386 4863 00 22 378 0275 00 1 OEFLECTOR AIR AUJMINUM 80009 378 0275 00 ATTACHING PARTS 23 211 0711 00 1 SCR ASSEM NSHR 6 32 X0 25 PNH STL TORX 01536 ORDER SY OESCR ENO ATTACHING PARTS 24 119 2102 00 1 FAN TIJ8EAXIAL 12V 1 5N 3200RPM 24CFM TK1328 119 2102 00 25 337 3021 01 1 SHIELO ELEC LVPS PEOPLE 80009 337 3...

Page 305: ...0319 402 END ATTACHING PARTS 334 1951 00 1 IUIRKER IOENT MKO NARNING CRT VOLTAGES B0009 334 1951 00 62 337 2931 01 1 SHIELO CRT TK12B5 337 2931 01 ATTACHING PARTS 63 211 0337 00 4 SCREN MACHINE 4 40 X0 25 PNH SST 01536 ORDER BY DESCR END ATTACHING PARTS 64 20D 0917 01 1 COVER CRT SKT 2 052 OD X0 291 H PLASTIC B0009 200 0917 01 65 1 NIRE SET ELEC N CRT SOCKET SEE A9N900 ANO A9P900 REPL 66 214 0291 ...

Page 306: ...Service Fig Index No 3 83 84 11 8 Tektronix Part No 343 1012 00 441 1618 02 1 I 0 Serial Assembly No Effective Dscont qty 12345 Name Description 2 RETAINER CKT 80 POLYCARBOMATE 1 CHASSIS SCOPE Mfr Code Mfr Part No 80009 343 1012 00 80009 441 1618 02 ...

Page 307: ...1D 2445A ILLU 2445A 2455STRATIONS A SERVICE 22 ...

Page 308: ...A1 h A9 2445A ILLU 2445A 2455STRATIONS A SERVICE A3 ii 19 11 A4 ...

Page 309: ...VOLTAGE PONER SUPPLY 80009 337 2978 00 ATTACHING PARTS 19 211 0304 00 2 SCR ASSEM NSHR 4 40 X0 312 PNH STL T9 01536 ORDER BY OESCR ENO ATTACHING PARTS 20 407 3436 00 1 BRKT CMPNT 14TG CAP TOP ALU14INU14 80009 407 3436 00 21 407 3437 00 1 BRKT CMPNT 14TG CAP BOTTOl4 PLASTIC 80009 407 3437 00 22 407 2854 00 1 8RACKET ANGLE TRANSISTOR AWl41NUM 80009 407 2854 00 ATTACHING PARTS 23 210 0586 00 5 NUT PL...

Page 310: ...0 025 SQ PH BRZ 22526 48283 029 60 1 CA ASSY SP ELEC 6 22 ANG 5 25 L SEE A1N121 REPL 61 1 CA ASSY SP ELEC B 26 ANG 7 0 L RIBBON SEE A1N122 REPL 62 366 1767 00 1 PUSH BUTTON BUICK YELLON INDICATOR 31918 160597 63 407 2904 01 1 BRACKET EXT SFT POLYCARBDNATE 80009 407 2904 01 64 211 0718 00 1 SCREN MACHINE 6 32 X0 312 FLH 10D DEG STL 83486 ORDER BY OESCR 65 214 3328 00 1 SPRING HLCPS 0 37 DD X0 7 L C...

Page 311: ...XT 0 015 THK STl 78189 1104 00 00 0541C 85 214 D973 00 1 HEAT SINK XSTR T0 92 CU BE CO Pl 80009 214 0973 00 IITTIICHll i PARTS 86 210 0586 00 2 NUT Pl ASSEN Nll 4 40 X0 25 STl CO Pl 78189 211 041800 00 210 0994 00 1 NIISHER FLAT 0 12510 X0 2500 X0 022 86928 11371 283 20 BIJ IITTIICHll i PARTS 87 136 0252 07 32 SOCKET PIN CONN N 0 DIMPLE 22526 75060 012 88 131 D993 00 4 BUS CONOUCTOR SHOO IISSEMBlY...

Page 312: ...6X9ID 11 200 3199 00 8010100 8010352 1 COVER FRONT IIBS 80009 200 3199 00 200 3199 01 8010353 1 COVER FRONT IIBS 80009 200 3199 01 12 386 4849 00 1 PlftTE MOUNTING ACCESSORY POUCH AUJMINll4 80009 386 4849 00 13 016 0692 00 1 POUCH ACCESSORY 80009 016 0692 00 14 161 0104 00 1 CIIBLE ASSY PMR 3 NIRE 98 0 L N RTIING CO 16428 CH8352 FH 8352 SAFETY CONTROLLED 15 343 0003 00 1 CUIMP LOOP 0 25 ID PLnSTIC...

Page 313: ...r r t 2445A ILLUSTRATIONS 2445A 2455A SERVICE ...

Page 314: ...G PARTS Attaching Parts always appear in the same indentation as the item it mounts while the detail parts are indented to the right Indented items are part of and included with the next hiqher indentation Attaching parts must be purchased separately unless otherwise specified ABBREVIATIONS INCH ELCTRN ELECTRON IN INCH SE SINGLE END NUMBER SIZE ELEC ELECTRICAL INCAND INCANDESCENT SECT SECTION ACTA...

Page 315: ...ONENTS GEROME MFG CO INC NIDEC AMERICA CORP PATELEC CEM ITALY SCHRAMM PLASTICS Address 1818 CHRISTINA ST 3628 CREMSHIIN BLVD 5825 N TRIPP AVE 16730 EJOHNSON DRIVE PO BOX 3588 RICHARDS AVE 9301 ALLEM OR 2200 US HNY 27 SOUTH PO BOX 1980 30 HUNTER LANE 2620 EMORESS Pl ACE PO BOX 0 80B1 NALL ACE RO 755 EASTGATE BLVD 5300 EDINA INDUSTRIAL BLVD 2000 5 BATAVIA AVE 114 OLO STATE RD PO BOX 14460 446 MORGAN...

Page 316: ...LTER 1 32 L CU BE 80009 214 3374 01 ENO ATTACHING PARTS 9 337 2926 03 1 SHLO IMPLOSION 4 44 X3 67 X0 06 CLEAR 80009 337 2926 03 378 0199 03 1 FILTER LT CRT BWE 3 415 X4 105 X0 030 TH TK1634 378019903 K ACRYLIC PLEXIGLAS 10 334 4378 01 1 MARKER IOENT MKO PROBE POMER 80009 334 4378 01 11 334 4381 02 1 MARKER IOENT MKD CONNECTOR DENT 80009 334 4381 02 12 334 4377 04 1 MARKER IOENT MKO CAUTION 80009 3...

Page 317: ...19 STRATIONS 2455A ILLU A SERVICE 244SA 2455 ...

Page 318: ...31 Irr I 2455A ILLU 2445A 2455STRATIONS A SERVICE ...

Page 319: ...DCK 0 384 IO INTL 0 022 THK STL 09772 OROER BY OESCR ENO ATTACHING PARTS 14 1 CIRCUIT 80 ASSY FRONT PANEL SEE A6A1 REPL 15 384 1684 01 2 SHAFT VARIABLE 2 16 L POLYCARBONATE 80009 384 1684 01 16 384 1683 01 1 SHAFT VARIABLE 2 36 L POLYCARBONATE 80009 384 1683 01 17 366 1516 00 20 PUSH BUTTON IVORY GRAY 0 3 X0 665 H SQ 80009 366 1516 00 18 366 1538 00 10 PUSH BUTTON IVORY GY 0 3 X0 665 RNO 80009 366...

Page 320: ...M NSHR 4 40 X0 312 PNH STL T9 01536 ORDER BY DESCR 21 386 4863 00 1 SUPPORT CKT BO 80009 386 4863 00 12 378 0275 00 1 DEFLECTOR AIR ALUMINUM 80009 378 0275 00 ATTACHING PARTS 23 211 0711 00 1 SCR ASSEM NSHR 6 32 X0 25 PNH STL TORX 01536 ORDER BY DESCR END ATTACHING PARTS 24 119 2102 00 1 FAN TU8EAXIAL 12V 1 5 3200RPM 24CFM TK132B 119 2102 00 25 337 3021 01 1 SHIELD ELEC LVPS PEOPLE 80009 337 3021 ...

Page 321: ...3743 2X 20319 402 ENO ATTACHlt PARTS 334 1951 00 1 MARKER IOENT MKO MARNit CRT VOLTAGES 80009 334 1951 00 62 337 2931 01 1 SHIELD CRT TK1285 337 2931 01 ATTACHit PARTS 63 211 0337 00 4 SCREN MACHINE 4 40 X0 25 PNH SST 01536 ORDER BY OESCR ENO ATTACHlt PARTS 64 200 0917 01 1 COVER CRT SKT 2 052 00 X0 291 H PLASTIC 80009 200 0917 01 65 1 MIRE SET ELEC M CRT SOCKET SEE A9 900 ANO A9P900 REPL 66 214 0...

Page 322: ...Service Fig Index No 3 83 84 12 8 Tektronix Part No 343 1012 00 441 1618 02 1 I 0 Serial Assembly No Effective Oscont Qty 2 1 12345 Name Description RETQINER CKT 80 POLYCQRSONATE CHQSSIS SCOPE Mfr Code Mfr Part No 80009 343 1012 00 80009 441 1618 02 ...

Page 323: ...13 2455A ILL 2445A 24 5STRATIONS A SERVICE ...

Page 324: ...http TRATIONS 2455A ILLi 5 SERVICE 2445A 24 19 ...

Page 325: ...DM VOLTAGE POMER SUPPLY 80009 337 2978 00 ATTACHING PARTS 19 211 0304 00 2 SCR ASSEM MSHR 4 40 X0 312 PNH STL T9 01536 ORDER BY OESCR ENO ATTACHING PARTS 20 407 3436 00 BRKT CMPNT MTG CAP TOP ALUMINUM 80009 407 3436 00 21 407 3437 00 BRKT CMPNT MTG CAP BOTTOM PLASTIC 80009 407 3437 00 22 407 2854 00 BRACKET ANGLE TRANSISTOR AWMINUM 80009 407 2854 00 ATTACHING PARTS 23 210 0586 00 5 NUT PL ASSEM MA...

Page 326: ... L X0 025 SQ PH BRZ 22526 48283 029 60 1 CA ASSY SP ELEC 6 22 AMG 5 25 L SEE A1M121 REPL 61 1 CA ASSY SP ELEC B 26 AMG 7 0 L RIBBON SEE A1M122 REPL 62 366 1767 00 1 PUSH BUTTON BUICK YELLOM INDICATOR 31918 160597 63 407 2904 01 1 BRACKET EXT SFT POLYCARBONATE 80009 407 2904 01 64 211 0718 00 1 SCREM MACHINE 6 32 X0 312 FLH 100 OEG STL 83486 ORDER BY OESCR 65 214 3328 00 1 SPRING HLCPS 0 37 00 X0 7...

Page 327: ...29 0985 00 84 210 0003 00 2 NASHER LDCK 14 EXT 0 015 THK STL 78189 1104 00 00 0541C 85 214 0973 00 1 HEAT SINK XSTR T0 92 CU BE CO PL 80009 214 G973 00 aTTACHlt PARTS 86 21D 0586 00 2 NUT PL ASSEN Na 4 40 X0 25 STL CO PL 78189 211 041800 00 210 09911 00 1 NaSHER FLaT 0 12510 X0 2500 X0 022 86928 a371 283 20 00 ATTACHlt PARTS 87 136 0252 07 32 SOCKET PIN CONN N 0 DIMPLE 22526 75060 012 88 131 0993 ...

Page 328: ... POUCH ACCESSORY 6 IN X9 IN M ZIPPER 05006 ZIP 6X9ID 11 200 3199 01 1 COVER FRONT ABS 80009 200 3199 01 12 386 4849 00 1 PLATE MOUNTING ACCESSORY POUCH AWMINUM 80009 386 4849 00 13 016 0692 00 1 POUCH ACCESSORY 80009 016 0692 00 14 161 0104 00 1 CABLE ASSY PttR 3 MIRE 98 0 L M RTANG CONN 16428 CH8352 FH il352 SAFETY CONTROLLED 15 343 0003 00 1 CLAMP LOOP 0 25 ID PLASTIC 06915 E4 CLEAR ROUND 16 210...

Page 329: ... I 2455A ILLUSTRATIONS 2445A 2455A SERVICE ...

Page 330: ...ue to printing and shipping requirements we can t get these changes immediately into printed manuals Hence your manual may contain new change information on following pages A single change may affect several sections Since the change information sheets are carried in the manual until all changes are permanently entered some duplication may occur If no such change pages appear following this page y...

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