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Tektronix 11302A, Service Reference Manual

The Tektronix 11302A Service Reference Manual is a comprehensive user manual providing detailed instructions for operating and troubleshooting the Tektronix 11302A product. Download this manual for free from manualshive.com to gain essential insights and maximize the potential of your Tektronix 11302A device.

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Summary of Contents for 11302A

Page 1: ...oscope Service Reference Manual WARNING The following service instructions are for use by qualified personnel only To avoid personal injury do not perform any servicing unless you are qualified to do so Refer to the Safety Summary prior to performing any service Please check for CHANGE INFORMATION at the rear of this manual ...

Page 2: ... manu racture is identified as follows BOOOOOO 100000 200000 300000 700000 Tektronix Inc Beaverton Oregon USA Tektronix Guernsey Ltd Channel Islands Tektronix United Kingdom Ltd London Sony fektronix Japan Tektronix Holland NV Heerenveen The Netherlands Tektronix thc P O Box 500 Beaverton OR 97077 Copyright Tektronix Inc 1988 All rights reserved Tektronix products are covered by U S and foreign pa...

Page 3: ...tion A4 1 5 Option AS 1 5 Section 2 Checks and Adjustments Installing and Removing Plug In Units 2 1 Minimize the Time Power is Off 2 1 Test Equipment 2 2 RS 232 Cable Requirements 2 2 Using the CATS Software 2 5 Creating a Working Disk For a Dual Floppy Drive System 2 5 Installing CATS Software on a Hard Disk System 2 5 Running the CATS Software 2 6 Selecting Menu Items Default Selection is Highl...

Page 4: ...ft Adjustment 2 49 Part 11 Readout Jitter 2 51 Vertical Readout Jitter 2 51 Horizontal Readout Jitter 2 53 Part 12 Vertical Center 2 55 Part 13 Magnified Registration 2 57 Part 14 XY Phase 2 59 Part 15 Plug In Interface Gains 2 62 Vertical Gain 2 62 Horizontal XY Gain 2 63 Part 16 Vertical Center Second Pass 2 64 Part 17 Sweep Slew Rate Selfcal 2 66 Part 18 Sweep Gains 2 67 Part 19 Beam Registrati...

Page 5: ...art 36 Center Compartment X Axis Accuracy 2 127 Part 37 Rear Panel Input Output Signals 2 129 Part 38 Counter Reference Clock In Out 2 132 Part 39 Frequency Accuracy 2 134 Part 40 External A and B Input Sensitivity 2 135 Part 41 2 ns Holdoff 2 136 Part 42 Holdoff By Events 2 137 Part 43 Time Interval Using Sweeps 2 138 Part 44 Minimum Time Interval 2 139 Part 45 VideoTrigger 2 140 Part 46 Store Ca...

Page 6: ...uted Capacitance Plate 3 53 Al 8 Delay line Assembly 3 54 FRU IC Replacement 3 55 Slam Pack Integrated Circuits 3 55 Firmware Integrated Circuits Dual In Line Package ICs 3 57 Prelilninary Verification Procedure 3 57 Firmware Upgxade Procedure 3 57 Restoring Factory Calibration 3 59 Cables and Connectors 3 60 Interconnecting Pins 3 60 Coaxial Type End Lead Connectors Peltolas 3 60 Multi Pin Connec...

Page 7: ...frame Digital Test Menu 3 86 Memory Test Menu 3 87 Test Status Area 3 87 RS 232 C GPIB 3 88 System Mode GPffi RS 232 C 3 89 Test Commands 3 89 Diagnostic Terminal Mode RS 232 C 3 90 Terminal Interface 3 90 Invocation Command 3 90 Terminal Diagnostic Commands 3 90 New Configuration Calibration 3 91 Restoring Cah bration Data From EEROM 3 91 Procedure 3 91 Field Replaceable Unit FRU Guide 3 92 Abbre...

Page 8: ...Base Board 4 5 Al5 Counter Timer Referenc e Board Option 11 4 6 A16 Memocy Expansion Board 4 6 Al7 Character Control Board 4 6 Section 5 Replaceable Parts Change Information Related Documentation The Parts List at the rear of this manual lists the Tektronix part numbers for all Standard and Optional Accessories provided with this product Manuals Standard Accessories vi Introduction to the 11301A a...

Page 9: ...board Vertical Readout Jitter adjustment location 2 52 A12 Vertical board Vertical Center adjustment and shorting locations 2 56 Al4 Timebase board Magnified Registration adjustment location 2 58 An XY waveform display showing dimensions A B and C The actual phase difference is equal to sin A B 2 60 A14 Timebase board XY Phase adjustment location 2 61 A12 Vertical board adjustment and shorting loc...

Page 10: ...Connector locations for removal of the A15 Counter rimer Reference board option 1T 3 48 Connector location for removal of the A16 Memmy Expansion board 3 50 Locations of mounting screws on the rear panel plate 3 51 IC lead indexing diagram 3 56 IC insertion extraction pliers 3 58 11302A cabling diagram 3 61 Orientation of multi pin connectors 3 62 Block menu sample display 3 84 Area menu sample di...

Page 11: ...n and Delayed Sweep Failures 2 88 11302A Vertical Gain 2 99 Vertical Adjustments Required for Check Failures 2 106 Initial Adjustments for Critical Components 2 111 Vertical Cursor Tolerances 2 115 Measurement Tolerances 2 115 Horizontal Tolerances 2 128 Relative Susceptibility to Damage From Static Discharge 3 5 Power up Kernel Failure Codes 3 82 Extended Ext Tests Diagnostics Error Index Codes 3...

Page 12: ...ge to the equipment or other property WARNING statements identify conditions or practices that could result in personal injury or loss of life CAUTION indicates a personal injury hazard not immediately accessible as one reads the marking or a hazard to property including the equipment itself DANGER indicates a personal injury hazard immediately accessible as one reads the marking DANGER High Volta...

Page 13: ...conductive parts in cluding knobs and controls that may appear to be insulating can inflict an electric shock To avoid explosion do not operate this product in an atmosphere of explosive gas ses Do not perform internal service or adjustment of this product unless another per son capable of rendering flrst aid and resuscitation is present Dangerous voltages exist at several points in this product T...

Page 14: ...r the user Section 5 Replaceable Parts gives a complete list of the FRUs in this instrument Operating Power Information This instrument can be operated from either a ll5 V or 230 V nominal supply source 48 to 440 Hz The 6 ampere 250 V line fuse is used for both 115 V and 230 V operation WARNING I AC POWER SOURCE AND CONNECTION The oscilloscope oper atesfrom a single phase power source It has a thr...

Page 15: ...als A power cord with appropriate plug configuration is supplied with each instrument Table 1 1 gives the color coding of the conductors in the power cord If you require a power cord other than the one supplied refer to Table 1 2 Power Cord and Plug Identification TABLE 1 1 Power Cord Conductor Identification Conductor Color Alternate Color Ungrounded Une Brown Black Grounded Neutral Light Blue Wh...

Page 16: ...3 1 oUL 11CSA 4CEE 7 II IV VII 3ffiC 83 8VDE 9SEMKO SBSI 1363 3IEC 83 8 AS Cll2 1 2ETSA 1ANSI C73 20 2NEMA 6 15 P 3JEC 83 1oUL 11 CSA 7SEV GEE Intemalional Commission on Ruks for the ApprovalofElectrical Equipment 8S Britislo Standards lnstiluu SAS Stondards Association ofAustralia 7SEV Schwtizevischer Elelarotechischer Verein 0 VDE Verband Deutscher E e arotechniku 8SEMKO Swedish Institute for Te...

Page 17: ...ation Requireme ts 1 4 The following environmental requirements are provided to ensure proper opera tion and long instrument life This instrument can be operated where the ambient air temperature is between 0 and 50 C and can be stored in ambient temperatures from 40 to 75 C After storage at temperatures outside the operating limits allow the chassis to reach the safe operating temperature before ...

Page 18: ...ernally routed directly between the two panels This is especially useful for rackmounted applications This option can be added at any time Option lR adds slide rails and rackmounting hardware to convert the benchtop instrument to a standard 19 inch rackmount version This option can be added at anytime Option lT provides a high stability timebase for the Counter Timer This option can be added at an...

Page 19: ...ug configurations United Kingdom General Information and Plug Identification ratings and referenced power cord standards List of Options Gives brief description of Option A2 Option A3 Provides 1 Table 1 2 Power Cord Gives plug configurations Australian General Information and Plug Identification ratings and referenced power cord standards List of Options Gives brief description of Option A3 Option...

Page 20: ...ipment setup or interconnection The specifications are given at the beginning of each procedure that verifies a performance specification NOTE Performance specifications are used in the checkportions ofthis procedure while tighter adjustment specifications are used in the adjustment portions to ensure that the advertised instrument performance is met in allnormal operating conditions Installing an...

Page 21: ...ainframe under test should be a standard controller to modem DCE DTE type cable The type of RS 232 connector your PC has will determine the type of connectors your cable must have The two most common connectors are the 25 pin D type and the 9 pin D type The 25 pin to 25 pin cable should at least have pins 2 2 3 3 4 4 5 5 7 7 8 8 and 20 20 connected The 9 pin to 25 pin RS 232 cable should be wired ...

Page 22: ...7 with a 1M 500 series accuracy Power Module Square wave output TEKTRONIX PG 506 0 25 accuracy 1 2 S Calibration Generator amplitude selection from with a TM 500 series 200 J l v p p to 100 v Power Module p p 1 ms period 1 MHz or 10 MHz out Efratom PTB 100 with 5 parts in 101 accuracy Tektronix TM 500 Power with mainframe Opt lT Module or comparable 5 parts in 10s WWV system 1 Hz sinewave output T...

Page 23: ... Two female one male Tektronix Part 103 0030 00 BNC connectors 50 n 18 inch two male Tektronix Part 012 0076 00 BNC connectors 50 n 42 inch two male Tektronix Part 012 0057 01 BNC connectors Feedtbrough 2 accu Tektronix Part 011 0049 01 racy BNC connectors Tektronix Pan 103 0028 00 Tektronix Part 103 0029 00 N male to BNC female Tektronix Part 103 0045 00 1 GHz bandwidth Tektronix Part 015 1014 00...

Page 24: ...ror or other system problems Finally make certain that a color graphics adapter card is not installed This will produce snow on the PC display during testing To create a working copy of the CATS software a With the MSDOS system disk in drive A enter the command DISKCOPY B A b The PC will prompt you to put the source disk i e the CATS Master in drive B and the blank disk in drive A c Replace the MS...

Page 25: ... number is incorrect enter the correct number when prompted The entered serial number will be stored internally The PC will initialize the powered up mainframe When properly booted the CATS software will display the test list menu The CATS software presents menus with status information at the top selections or prompt messages in the middle and data entry at the bottom Each selection has a number ...

Page 26: ...euse The CATS test list menu contains a utility test that provides the ability to store the full set of mainframe EEROM calibration constants in a file and if necessary reload them into a mainframe The store option reads all mainframe calibration constants and saves them in the file that you specify This utility may be used before starting repair or adjustment of a mainframe to provide a recovery ...

Page 27: ... results of the checks are logged for each test run If an adjustment is made in a test only the results of the adjustment are logged for that test Subsequent runs of the CATS software i e leaving the CATS software then restarting it later on a particular instrument will append the new log data to the end of the old log file rather than overwriting it Manual tests do not have data logged automatica...

Page 28: ...o previous test This will restart the failed test Clearing a Continuous SRQ Condition In unusual circumstances the mainframe may continually generate SRQs or it may not respond to keyboard input Ifeither of these conditions occur press the Fl key and select number 4 to leave CATS When the MSDOS prompt appears restart the CATS software The CATS software has a buffer in which it stores SRQ messages ...

Page 29: ...labels display messages and PC test names For example Vertical Cursors is a meriu entry while AUTOCAL_VERT is a PC test name Initial capital letters identify connectors controls and indicators on associated test equipment for example Position Initial capital letters also identify adjustments inside the mainframe and plug in for example Vertical Size A heading system is used to readily identify the...

Page 30: ...nce 1 Part 2 Extended Diagnostics 2 Part 4 CVR Accuracy 3 Part 7 Front Panel Display Adjustments 4 Part 20 Cursor to Graticule Match 5 Part 21 Reference Oscillator 6 Part 22 Front Panel Calibrator 7 Part 25 Install Instrument Covers Store Cal Constants 8 Part 26 Sweep Timing Accuracy 9 Part 27 Delta Delay Accuracy 10 Part 29 Vertical High Frequency Response 11 Part 30 Vertical Measurement Accuracy...

Page 31: ...Use a coin to tum the four clasps on the top and bottom covers First lift up the front of each cover then remove it 2 Setting DIP Switches for Testing t v i Locate the DIP switch on the All Main Processor board see Fig 2 1 at the top rear of the mainframe All DIP switches are normally in the Open position and should be returned to that position after all tests are performed For testing set DIP swi...

Page 32: ...r booted it may ask for the correct time and date Enter the current time and date If you are not prompted for the time and date use the MSDOS commands TIME and DATE to set them The current time and date are used to date the test log file Print out the manual report fonn PRINT diskname BLANKFM RPT as described previously under Test Data Logging 5 Start the CATS Software With the mainframe already p...

Page 33: ...e instrument on its bottom Oscilloscope Mainframe No setting changes required Digital Multimeter DMM Mode DC Voltage a Verify the following analog supply voltages at the associated connector pins located on the All Main Processor board See Figure 2 2 Analog Voltage Connector Pin I Tolerance SOV J90 5 lV 50V J90 3 IV lSV J90 11 0 3V 15V 190 9 0 3V 5V J90 2 0 15V 5V J90 26 0 15V Checks and Adjustmen...

Page 34: ...n the A2 Power Supply Module Use ground test point TP510 on the Al3 Scope Logic board DO NOT attempt to optimize the power supply adjustment settings if the reading is within the stated limits If the readings are outside the stated limits proceed to the following Adjust steps tl Pln 2 Pin 1 J 90 Gnd TP1570 Figure 2 2 Location of the J90 connector on the A11 Main Processor board Checks and Adjustme...

Page 35: ...ower Supply J63 fi 1 Pin 2 H t Bottom VIew of Instrument Front of Instrument Figure 2 3 Location of J63 2 the 5 1 V test point on the A2 Power Supply Module 2 16 Checks and Adjustments 11302A Service Reference ...

Page 36: ...under A2 Power Supply Removal in Section 3 M aintenanee c Short circWt test points TP830 and TP831 on the A2A2 Control Rectifier board using a shorting strap Refer to Figure 2 4 d Connect the power supply module to a suitable line power source e Set the rear panel PRINCIPAL POWER SWITCH to ON Digital Multimeter DMM Mode DC Voltage WARNING I Extreme caution must be used when making the following ad...

Page 37: ...ect the instrument from the power source Remove the shorting strap and all test leads e Replace the power supply in the mainframe f Set the rear panel PRINCIPAL POWER SWITCH to ON and the front panel ON STANDBY switch to ON TP701 J63 R800 5 2VRef Figure 2 4 A2A2 Control Rectifier board test point and adjustment locations 2 18 Checks and Adjustments 11302A Service Reference ...

Page 38: ...le at the bottom d Remo the plastic shield then re connect the ribbon cable e Connect the DMM leads f Set the rear panel PRINCIPAL POWER SWITCH and the front panel ONISTANDBY switch to ON Digital Multimeter DMM Mode DC Voltage WARNING I Extreme caution must be used when making the following adjustment due to the dangerous potentials presem a CHECK the DMM for a reading of 10 00 V within the limits...

Page 39: ...ve the test leads replace the plastic shield and side rail by reversing the procedure described in the Setup e Set the rear panel PRINCIPAL POWER SWITCH and the front panel ON STANDBY switch to ON Figure 2 5 _ A4 Regulator board test point and adjustment locations 2 20 Checks and Adjustments 11302A Service Reference ...

Page 40: ...of the screen During the two minutes of testing the screen will flash off and on No buttons should be pressed or controls changed during the tests d CHECK that the Index column of the fmal diagnostics menu contains only Pass entries or for empty plug in compartments either L C or R If any tests had a Fail Index status note the adjacent Fault number and refer to the Diagnostics information in the M...

Page 41: ...ust to illuminate the graticule a Touch each row and column touch area shown shaded in Figure 2 6 one at a time The horizontal and vertical graticule lines indicate the borders of the square touch areas on the screen b CHECK that as each area is touched the on screen message Counter Timer PLL unlocked disappears briefly then reappears c Select the Utility menu and set REF CLK to INT DO NOT adjust ...

Page 42: ... Part 3 Touch Screen Touch Areas to be Testlld Figure 2 6 Locations of CRT touch areas to test Checks and Adjustments 11302A Service Reference 2 23 ...

Page 43: ...m the following Remove the top and bottom eovers from the maiaframe Test Oscilloscope Horizontal 1 rns div Vertical 1 V div Procedure a The signal from TP222 should be selected as the trigger source and the signal from TPIOO should be displayed 2 24 t l 1 l TP222 Figure 2 7 Ato Front Panel Interface board Touch Screen test point and adjustment locations Checks and Adjustments 11302A Service Refere...

Page 44: ...uence of 24 pulses plus part of another sequence See Figure 2 8 c Adjust R120 Sensitivity counterclockwise to identify the short pulses as shown at the top of Figure 2 8 100 90 0 0 ShortPul s o I s 0 0 0 I I Ill I 11 11 1 Ill I 0 100 90 0 I L o v II v 0 0 0 Pulses Adjusted to Correct Height s 0 f Ill Ill 1111 Fill Ill 1111 illI ljJ 0 0 Figure 2 8 waveform display showing Touch Screen adjustment wa...

Page 45: ... short pulses just approach the level of the top line of the other 20 pulses as shown at the bottom of Figure 2 8 Do not adjust R120 further clockwise NOTE Ignore the very shon positive going spike at the end ofeach pulse Cheeks and Adjustments 11302A Service Reference ...

Page 46: ...ering the reading The DMM readings must be entered in volts Both decimal and exponential notation are acceptable For example a reading of 199 87 mV could be entered as 19987 or 199 87e 3 b Start the CAL_VOLTAGE_REF test Follow the instructions given on the PC screen and enter all displayed digits of the current DMM reading when prompted c If the entered values are within allowed limits then the te...

Page 47: ...Part 4 CVR Accuracy R333 Gain R330 Offset TP421 Figure 2 9 A13 Scope Logic board CVR Accuracy test point and adjustment locations 2 28 rh rlr lld Adjustments 11302A Service Reference ...

Page 48: ...a Start the A_D_GAIN_OFFSET test The PC will automatically check the settings for gain and offset b If the settings are not within tolerance the PC will offer the choices to exit or adjust the gain and offset DO NOT attempt to optimize the gain and offset settings if the verifi cation passed c See Figure 2 10 for adjustment locations and follow instructions on the PC to adjust the gain and offset ...

Page 49: ...Part S AID Converter t i f 0 j t tf J90 R1582 Offset R1580 Gain 3 l 1 L J Figure 2 10 A11 Main Processor board A 0 Converter adjustment locations 2 30 Checks and Adjustments 11302A Service Reference ...

Page 50: ...ltlmeter Mode DC Volts Range 10 V or Autorange a Start the ACVS_GAJN test Follow the instructions given on the PC screen and enter the current DMM reading when prompted b If the entered values are within the allowed limits then the test will give you the choice to exit or adjust the gain DO NOT perform the following adjustment unless the ACVS checks are out of tolerance c Follow the adjustment ins...

Page 51: ...Part 6 ACVS Gain r t ci 11i lH 1 1 t T fs j TP1530 TP1531 ft Rgure 2 11 A1411mebase board ACVS Gain test point locations 2 32 Checks and Adjustments 11302A Service Reference ...

Page 52: ...R854 ACVSGain Figure 2 12 A13 Scope Logic board ACVS Gafn adjustment location Checks and Adjustments 11302A Service Reference Part6 ACVS Gain 2 33 ...

Page 53: ...should be at an average intensity not bright a Press the DISP ADJ button b With the left and right knobs set to FINE adjust the knobs for the best overall clarity and focus of the displayed characters The left and right knobs adjust Focus and Astigmatism respectively c Select Trace Rot then adjust the right knob to set the reference trace parallel to the center graticule line Checks and Adjustment...

Page 54: ... least 20 minutes before checking or adjusting any ofthe functions listed below Ifthepower is turned offbriefly to changeplug ins or to remove the high voltage cover then it is not necessary to wait the full 20 minutes again There are four sections in this part Cathode Voltage Grid Bias Y Axis Alignment Display Clarity and Geometry Checks and Adjustments 11302A Service Reference 2 35 ...

Page 55: ...sible under the high voltage cover b When ready turn the instrument power off and remove the four screws attaching the high voltage cover to the Al3 Scope Logic board Refer to Figure 2 13 for the location of this cover Turn the power back on Allow five minutes for the instrument temperature to stabilize c Attach a 16 pin DIP clip to Ul540 Set the DMM to measure voltage with autoranging or a 2 V sc...

Page 56: ...1 601 V with a target value of 1 600 Refer to Figure 2 13 for adjustment locations Remove the test leads and the DIP clip g Ifyou are not performing the grid bias check in the following section then turn the instrument power off replace the high voltage cover and tum the power on again TP470 R600 High Drive Focus High Voltage Transformer High Voltage Cover C1030 R952 Cutoff R1613 Y Rotation R1355 ...

Page 57: ...nframe should be warmed up at least 20 minutes before starting this test A stable internal temperature is very important a Adjust the front panel INTENSITY control knob to set the CHAR XY and GRAT INTENSITY to their minimum values The beeper sounds when the minimum value is reached b Shield the screen from ambient light and increase the XY INTENSITY until a dot is just barely visible on the screen...

Page 58: ...e that the minimum value is reached i Adjust the CHAR and GRAT INTENSITY to their minimum values j ADJUST R952 on the Al3 Scope Logic board so that a dot is visible on the screen Shield the screen from room light and readjust R952 so that the dot on the screen is just extinguished Refer to Figure 2 13 for adjustment locations k Set the DMM to measure voltage with autoranging or a 100 to 200 V rang...

Page 59: ...raticule line Press the DISP ADJ button again to exit from the menu d Press the CURSORS button below the screen and select Horizontal Cursors e Adjust the right knob so that the dashed cursor passes through the intersection of the center vertical and center horizontal graticule lines f CHECK that the tilt of the cursor relative to the center vertical graticule line is less than 0 05 division one q...

Page 60: ...erly aligned then the instrument gain must be adjusted before proceeding with the Display Quality checks To correct the instrument gains perform the following in order Part 12 Vertical Center Part 13 Magnified Registration Part 15 Plug In Interface Gains Part 19 Beam Registration After running these procedure Parts perform the Setup above then proceed to step a b Adjust the MAIN and CHAR INTENSITY...

Page 61: ...the screen are either enclosed by or touching the pairs of lines that are displayed in the crosshatch pattern within the center 6 by 8 division area Exclude the outer one division width at the top bottom and both sides of the display The display pattern has three lines across the center vertical and center horizontal graticule lines Ignore the center of these three lines for this evaluation DO NOT...

Page 62: ... screen This adjustment may change the overall alignment of the crosshatch pattern to the screen Refer to Figure 2 13 for adjustment locations t u v w NOTE Changes in theposition ofthe oscilloscope affect the alignment ofthe crosshatch pattern This is due to the effect ofthe Earth s magneticfield and other magnetic fields If the pattern is misaligned then visually compensate for this shift when ad...

Page 63: ...e 2 14 11302A Q 0 0 Remove the top and bottom covers from tbe mainframe No plug iD units or connections are necessary a Start the CRT_VECTOR test FoUow the instructions given on the PC DO NOT adjust the vectors unless the verification fails b Follow adjustment instructions on the PC and refer to Figure 2 15 for adjustment locations 2 44 Checks and Adjustments l1302A Service Reference ...

Page 64: ...v I Trac e Separation v 0 Part 9 Stored Waveform Vectors 0 v Tek j Figure 2 14 Trace separation measurement 0 2 dlv or less on the displayed XV waveform Checks and Adjustments 11302A Service Reference 2 45 ...

Page 65: ...d Waveform Vectors R183 Vector Filter Phulng R184 Horizontal Vector Gate Nulling I Figure 2 15 A11 Main Processor board Stored Waveform Vectors adjustment locations 2 46 f h md Adjustments 11302A Service Reference ...

Page 66: ...ontal Size 10 j I S div a Adjust the Signal Standardizer Position and Amplitude controls for a centered display of about six divisions b Press the HORIZONTAL DELAY button then select Window On c Press the HORIZONTAL SIZE button and set the delayed sweep size to 500 ns div d Select HORIZONTAL DELAY again and adjust the delay so that the intensified zone is near screen center on a falling edge of th...

Page 67: ...200 ns div i Adjust the Delay to put the intensified zone near the horizontal screen center j Adjust the Signal Standardizer Position control to put the intensified zone near the vertical center of the screen Check Vertical Shift k Briefly increase the MAIN INTENSITY to a high level and check that the intensified zone remains symmetrical to the rest of the trace even when blooming Some shift of th...

Page 68: ...ary The spot shift test should be run quickly to avoidpossible damage to the CRT DO NOT pennit the test to ron longer than 30 seconds a Before starting the following PC test find the adjustment locations on the circuit boards shown in Figure 2 16 b Start the test SPOT_SHIIT Follow the instructions given on the PC Checks and Adjustments ll302A Service Reference 2 49 ...

Page 69: ...Part 10 Spot Shift A A12 B A14 Rgure 2 16 A12 Vertical board and A14llmebase board Spot Shift adjustment locations 2 50 Checks and Adjustments 11302A Service Reference ...

Page 70: ... 10 kHz Oscilloscope Mainframe WAVEFORM menu L left Press the WAVEFORM menu CURSOR menu Vertical Cursors a CHECK that a triggered squarewave signal is displayed Adjust the MAIN INfENSITY and triggering if required b Set the Signal Standardizer Position and Amplitude controls to the fully clockwise position c CHECK the lower dotted cursor for stability and minimal vertical movement DO NOT start the...

Page 71: ...Part 11 Readout Jitter 1 ooooor oooo l R570 On Screen Thermals Figure 2 17 A12 Vertical board Vertical Readout Jitter adJustment locauon 2 52 Checks and Adjustments 11302A Service Reference ...

Page 72: ...is displayed Adjust the MAIN INTENSITY and triggering if required b Adjust the Signal Standardizer Position and Amplitude controls for a centered waveform with 5 6 divisions of amplitude c Set lOX Mag to On Horizontal Size menu which results in a Horizontal Size of 500 J IS div d CHECK the cursors for stability and minimal horizontal movement DO NOT start the following adjustment if the cursors ap...

Page 73: ...Part 11 Readout Jitter f o R1302 Horlz Readout Jltr Figure 2 18 A14 nmebase board Horizontal Readout Jitter adjustment location 2 54 Checks and Adjustments 11302A Service Reference ...

Page 74: ... 2 19 for the shorting location Pins 4 and 6 are the outside legs on the side of U420 nearest to U520 b CHECK that the display on the screen has collapsed into a single horizontal trace and that this trace is within 0 2 division of the center of the screen a DO NOT attempt to adjust the vertical balance if it is within the stated limits Proceed to the next procedure Part c ADJUST R610 on the Al2 V...

Page 75: ...Part 12 Vertical Center t R610 Center U420 Short Aero These Two Pins Figure 2 19 A12 Vertical board Vertical Center adjustment and shorting locations 2 56 Checks and Adjustments 11302A Service Reference ...

Page 76: ...move top and bottom covers from the mainframe Time Mark erator T1me Mark Generator Output Markers S ms Signal Standardizer Test Vert or Horiz AuxIn a During this test you will be asked to center the pulse horizontally on the screen When positioning the waveform pulse use the tip of the pulse as the waveform reference point b Start the test HOR_MAG_REG and follow the PC instructions If adjustment i...

Page 77: ...Part 13 Magl ified Registration R1411 Mag Reg Figure 2 20 A14 Tlmebase board Magnified Registration adjustment location 2 58 Checks and Adjustments 11302A Service Reference ...

Page 78: ...o ers from the mainframe Oscilloscope Mainframe RF Output WAVEFORM menu L vs C Left Signal Standardizer Test Vert or Horiz Aux In Center Signal Standanlizer Test Vert or Horiz AuxIn RF Synthesizer Frequency l MHz Amplitude 400 mV nns a Increase the XY INTENSITY until the wavefonn is visible b Adjust the Position and Amplitude controls of the left and center Signal Standardizers so that the trace i...

Page 79: ... amplitude of dimension A if it is within the stated limits Proceed to the next procedura Part f Set the RF Synthesizer frequency to 3 MHz g ADJUST the C1421 adjustment on the A14 Timebase board to minimize dimension A Refer to Figure 2 22 for the adjustment location z9 r v v IOi v 11 1 L A B C J v 6 c Figure 2 21 An XV waveform display showing dimensions A B and C The actual phase difference Is e...

Page 80: ...Part 14 XY Phase C1421 XY Phasing r s I i _ _ rlL i Figure 2 22 A14 nmebase board XV Phase adjustment location Checks and Adjustments 11302A Service Reference 2 61 ...

Page 81: ... 10 kHz Center Signal Standardizer Test Vert or Horiz Gain Rep Rate 10 kHz a Start the VERT_GAIN test Follow the instructions given on the PC DO NOT adjust the Vertical Gain unless the verification indicates that adjustment is necessary DO NOT run Enhanced Accuracy if you made an adjustment during this test Part 19 Beam Registration must beperformed before Enhanced Accuracy is invoked Calibration ...

Page 82: ...in Rep Rate 1 kHz NOTE You will need to adjust the MAIN and XY INTENSITY c o view some traces during this test a Start the HOR_GAIN test Follow tile instructions given on the PC DO NOT adjust the Horizontal Gain unless the verification indicates that adjustment is necessary DO NOT run Enhanced Accuracy ifyou made an adjustment during this test Part 19 Beam Registration must be performed before Enh...

Page 83: ...6 of U420 Refer to Figure 2 23 for the shorting location Pins 4 and 6 are the outside legs on the side of U420 nearest to U520 b CHECK that the display on the screen has collapsed into a single horizontal trace and that this trace is within 0 2 division of the center of the screen DO NOT attempt to adjust the vertical balance if it is within the stated limits Proceed to the next procedure Part c A...

Page 84: ...ooOUoooooou oooooooo oooooooooooo oo f R610 Center o f T o 0 1 v r 4 W i t J D V 1 J l tJ 6 x flt U420 Short Aero The Two Pin Figure 2 23 A12 Vertical board adjustment and shorting locations Checks and Adjustments 11302A Service Reference 2 65 ...

Page 85: ...omatically adjusts the sweep slew rate 11302A Q 0 0 The top aud bottom covers may be on or offfor this test Plug in units may remain installed during this test a Start the test AUTOCAL_SWEEPS Follow the instructions given on the PC Checks and Adjustments 11302A Service Reference ...

Page 86: ......

Page 87: ... to Vert or Horiz Aux ln f Start the SWEEP_GAIN test then adjust the Signal Standardizer Amplitude and Position controls for a 6 div signal g Follow the instructions given on the PC When the test finishes proceed directly to the next procedure Part Beam Registration The calibration information derived during the SWEEP_GAIN test is pennanently stored when Beam Registration is performed DO NOT run E...

Page 88: ...pot Shift Part 11 Readout Jitter 11302A Q 0 0 To U421 8 on A10 Front Panel Interface Board See Fig 2 24 Perform the following Part 12 Vertical Center Part 13 Magnified Registration Part 15 Plug In Interface Gains Part 16 Vertical Center Second Pass Part 18 Sweep Gains Part 29 Vertical High Frequency Response Test Oscilloscope D Remove the top and bOttom covers Crom the mainframe and position tbe m...

Page 89: ...t short trace moved across a particular graticule line e g the or 4th graticule This trace moves slowly back and forth on the screen for about five seconds before the PC asks you if the trace crossed a line Als you will be asked if some traces were within 0 1 to 0 3 clivs from the center graticule line Figure 2 25 shows the dimensions to measure for each type of trace After several CRT locations a...

Page 90: ...o 0 3 Divisions 0 0 0 Figure 2 25 CRT display showing the trace to gratlcule measurements for Beam Registration d Start the test GRAT_PREP Observe the traces and waveforms as described in step c and answer the PC prompts Checks and Adjustments 11302A Service Reference 2 71 ...

Page 91: ...Part 19 Beam Registration Agure 2 26 CRT display showing an acceptable GRAT_PREP waveform 2 72 Checks and Adjustments 11302A Service Reference ...

Page 92: ...r the AHoriz readout should be within o OS div over 8 horiwntal divs 11302A Q 0 0 The instrument must be warmed up i e power constantly on for 5 minutes before running this test a Press the ENHANCED ACCURACY button twice b When the automatic self calibration is complete the instrument will enter the normal operating mode and display the EA symbol on the lower right side of the CRT Any failure of t...

Page 93: ...lled 11302A Q 0 0 Coaxial cable Precision Time Base 10 MHz Sine Initialize the oscilloscope s settings tben perform tbe following Precision Time Base Frequency 10 MHz Plug In Amplifier CH 1 On Oscilloscope Mainframe Vertical Size menu Impedance SO l COUNTER menu Measure Freq Averages 108 Update Manual INTENSITY MAIN NOTE Ifa 10 MHz precision source is not available a I Mhz precision source may be ...

Page 94: ...mpt to adjust the internal Reference Oscillator if the Freq readout is within the stated limits Proceed to the next procedure Part For the standard mainframe d Remove the bottom cover from the mainframe e Press the COUNTER button and select Auto Update and 1oeAverages f ADJUST the C210 adjustment on the A14 Timebase board until the Freq readout of the mainframe is within 5 Hz of the Precision Time...

Page 95: ...powe1 even when the ON STANDBY switch is set to STANDBY g Remove the rear panel behind the CRT See Figure 2 28A and refer to the Maintenance section for more infonnation Select 1os Averages and Auto Update h ADJUST the Oven Oscillator frequency so it is within 0 2 Hz of the Precision Time Base frequency See Figure 2 288 for the location Select 1os Averages for the final check Checks and Adjustment...

Page 96: ...n Remove Rear Panel Screws Refer to Maintenance Section and Allow Rear Panel to H1111g LooM ae Shown Option 1T Oven i 1 Oscillator Frequency Adjustment Figure 2 28 Location of the Option 1T Oven Oscillator adjustment Checks and Adjustments 11302A Service Reference 2 77 ...

Page 97: ...ay be on or off for this test Calibration Generator Amplitude 0 5 V Standard Amplitude Frequency l kHz if selectable Plug In Amplifier CHl On Oscilloscope Mainframe Vertical Size 100 mV div Bandwidth Limit 20 0 MHz HF LIMIT Horizontal Size 500 J LS div CURSORS Vertical Cursors a Select VERTICAL POS and center the trace vertically on the screen NOTE To minimize noise interference ofthe calibration ...

Page 98: ... Generator output Set the Calibration Generator output to 5 V Adjust the cursors to measure the amplitude of the new signal and touch Set Ref Move the cable from the Calibration Generator output to the CALIBRATOR output Press the UTILITY button select Cal Slg and set the CALIBRATOR output to a 5 V Sq Wave at 1kHz Adjust the cursors to measure the calibrator signal CHECK that the AVert readout is b...

Page 99: ...ainframe Digital Multfmeter Hi L o Connect AlO Front Panel Interface board test point TP1020 to 5 V U801 16 See Figure 2 29 a Start the test FRNT_PNL_CAL Follow the instructions given on the PC b When the test is finished remove the connecting strap from 1P1020 TP820 Gnd Figure 2 29 A10 Front Panel Interface board Calibrator test point locations Checks and Adjustments 11302A Service Reference ...

Page 100: ...Amplifier CH 1 On RF Synthesizer Frequency 1 MHz Amplitude 350 mV nns Autoset Intensity Check a Press the AUfOSET button b Verify that the final waveform intensity is at an acceptable level DO NOT proceed with the Autoset Intensity adjustment step c if V the intensity level in the verification phase was acceptable Proceed to the Readout Intensity Limit check c Start the test AUTOSET_BRIGHT Follow ...

Page 101: ... i e with a halo Start the test AUTOCAL_TRIG and watch the mainframe oscilloscope CRT k If the intensity is acceptable then proceed to the next check If no wavefonns are visible or they are too bright then proceed to the following adjustment DO NOT attempt adjustment if the verification phase passed I Start the test AUTOCAL_BRIGHT Follow the irlstructions given on the PC When the test finishes pro...

Page 102: ...ntal Size to 5 ms div r Increase the MAIN INTENSITY just until the warning MAIN intensity exceeds limit appears and remains on screen s CHECK that the intensity of the trace is brighter than required in normal use t Set the Main Horizontal Size to 10 ns div and adjust the Horizontal Position so that the trace spans the full width of the screen u Increase the MAIN INTENSITY just until the warning M...

Page 103: ...a warning message for excessive intensity is not constantly displayed DO NOT perfonn the following adjustment if all the checks per formed for Trace Intensity were acceptable Do not alter any front panelsettings during tire following adjustment test unless the PC specifically requestsyou to do so DO NOT lullt this test while it is running Doingso will corrupt the Autoset Intensity setting which wa...

Page 104: ...ust the CHAR and MAIN INTENSITY to a comfortable level c Set the CHARACI ER CONTROL to Pulse CHECK to verify that the readout flashes on at the end of the sweep d Set the Horizontal Size to 1 J 1S div CHECK to verify that the readout display appears normal and the waveform display dims c Set the CHARACI ER CONTROL to OfT CHECK to verify t hat the readout disappears and the waveform display intensi...

Page 105: ...g the instrument during this test could cause loss ofail calibration constant information and a non junctional instrument a Start the test SAVE_FACTORY The PC will indicate test completion b Power down the mainframe and install the top and bottom covers For instructions see the cover removal replacement information in the Maintenance section c Remove the amplifier and install a Signal Standardizer...

Page 106: ...on settings At each time division setting the PC will prompt you to enter the number of complete cycles between the cursors Timing accuracy is best and customarily checked across the center eight horizontal divisions If the instrument performance is being verified the full set of time division selections should be checked When checking magnified sweeps the first four divisions of the viewable trac...

Page 107: ...iming adjustment tests must be run to correct the failed time div setting TABLE 2 2 Adjustment Tests to Correct Main and Delayed Sweep Failures Time Div Adjustment Test or Sweep Timing Settings Procedure Part To Run to Re Check 500 ffiS Part 18 Sweep Gains and All times div 500 ns Part 19 Beam Registration 5ns If all time div slower than 5 ns 5 ns div and faster are good perform 5 ns Timing Adjust...

Page 108: ...n perfonning this l ns div sweep linearity check adjustment some compromise is necessary between adjusting for the best linearity and the accuracy of high speed sweep timing The best approach is to check the linearity as described below and make an adjustment only if the linearity is beyond the specified limits If an adjustment is required check the timing at 1 ns div and 500 ps div again with the...

Page 109: ...itions that are within 20 ns or 20 divisions of the extreme left end of the sweep One check was made in steps c and To check the extreme left end of the sweep increase the Horizontal Position until the left end of the trace is not visible f Set the DElAYED INIENSITY to a high level Increase the Horizontal Position until a dim trace is again seen at the left then decrease the Horizontal position by...

Page 110: ...V f A I 1 Unearity Error Part 26 Sweep Timing Accuracy A I I 1 liT v l I 1 I V 1 1 Figure 2 31 Waveform alignment for the Linearity measurement dimension A should be the same at both ends Checks and Adjustments 11302A Service Reference 2 91 ...

Page 111: ...Part 26 Sweep Timing Accuracy 7 t R1410 HI Speed Timing I Figure 2 32 A14 nmebase board High Speed Linearity adjustment location 2 92 Checks and Adjustments 11302A Service Reference ...

Page 112: ...and bottom covers on the mainframe Signal Standardizer nme Mark Generator Test Vert or Horiz AuxIn Position 12 o clock Amplitude 8 o clock Time Mark Generator Markers 10 ns a Start the test TIMING_SNS Follow the instructions given on the PC Note Each iteration takes about one minute Checks and Adjustments 11302A Service Reference 2 93 ...

Page 113: ... Standa rdizer RF Test Vert or Horiz AuxIn Position 12 o clock Amplitude 8 o clock RF Synthesizer Frequency SOO MHz Amplitude 200 mV nns a Start the test A_SWP_LIN During the test you will need to adjust the Intensity and Horizontal Position to view the trace The trace will NOT be visible at the extreme positive left end of the sweep range Follow the instructions given on the PC Checks and Adjustm...

Page 114: ... Test Vert or Horiz AuxIn Position 12 o clock Amplitude 8 o clock RF Synthesizer Frequency 500 MHz Amplitude 200 mV rms a Start the test B_SWP_LIN_lNS During the test you will need to adjust the Intensity and Horizontal Position to view the trace The trace will NOT be visible at the extreme positive left end of the sweep range Follow the instructions given on the PC Checks and Adjustments 11302A S...

Page 115: ...r RF Test Vert or Horiz Aux In Position 12 o clock Amplitude 12 o clock RF Synthesizer Frequency 500 MHz Amplitude 200 mY rms a Start the test B_SWP_LIN_SOOPS During the test you will need to adjust the Intensity and Horizontal Position to view the trace The trace will NOT be visible at the extreme positive left end of the sweep range Follow the instructions given on the PC Checks and Adjustments ...

Page 116: ...e generator frequency then adjust Delay2 of the Window2 waveform until it overlays the Windowl waveform If the waveforms are initially overlaid appearing as only one waveform then no adjustment of Delay2 is necessary For the slower sweep speeds using the Time Mark generator the two waveforms actually appear as spikes or blips on alternate sweeps The spikes must be overlaid by noting their position...

Page 117: ... Signal Stand ardlzer i The top and bottom mainframe covers may be on orofffor this test Sigual Standardizer Test Vert or Horiz Step Rep Rate 1MHz Position 2 o clock Amplitude 12 o clock a Start the test PROBE_SKEW_ADJ_RNG Follow the instructions given on the PC Checks and Adjustments 11302A Service Reference ...

Page 118: ...djustments at the end of this procedure Part must be performed Any Vertical Amplifier adjustments require that the checks be repeated The specifications for frequency range versus amplitude roll off are given in Table 2 3 Frequency Range 150 200 MHz 201 250 MHz 251 300 MHz 301 350 MHz 351 400 MHz 401 500 MHz TABLE 2 3 11302A Vertical Gain Amplitude of6 MHz 88 5 87 0 87 0 87 0 82 0 76 5 Checks and ...

Page 119: ...L RF Synthesizer Frequency 6 MHz Amplitude 250 mY nns a Adjust the left Signal Standardizer for a centered 6 division waveform The waveform should be a solid band across the screen Verify that the CW light on the Signal Standardizer is on If the light is off the signal from the RF Synthesizer is either too low or high b Press the CURSORS button and select Vertical Cursors Position the cursors to t...

Page 120: ...amplitude of the waveform is greater than or equal to the spacing between the Cursors the Amplitude value set previously over the full frequency range being checked j When all frequency ranges are checked move the cable from the Aux In connector of the left Signal Standardizer to the Aux In connector of the Center Signal Standardizer k Repeat steps a through i for the Center Signal Standardizer in...

Page 121: ...rdizer Amplitude and Position controls for a centered 5 division waveform b Select the Vertical Cursors and position them to the top and bottom of the waveform c Select Set Ref from within the Cursors menu then select dB Verify that the t Vert l OD appears at the left side of the screen d Set the Horizontal Size to 5 ns div then adjust the MAIN INTENSITY and Horizontal Position to obtain a viewabl...

Page 122: ...clear the current left plug in trace Now select C for a center compartment waveform Exit the Waveform menu by pressing the WAVEFORM button again h Set the Horizontal Size to 100 IJ S div 1 Repeat steps a to f for the center plug in unit j Ifany checks are not within tolerance proceed to the adjustment section at the end of this procedure Part Checks and Adjustments 11302A Service Reference 2 103 ...

Page 123: ... Position controls for a centered 5 division waveform b Set the Horizontal Size to lO ns div c Press the WAVEFORM button and select Count View then Count In for display d Press the COUNTER button then select Freq Measure by touching the lower right area of the screen The display should now show a five division step waveform and the 1 division Count In waveform e CHECK that the amplitude of the Cou...

Page 124: ...rm to the center vertical graticule line i Select lOX Magnify changes to On status from the Horizontal Size menu j CHECK that the Count In risetirne measured from 10 to 90 is 2 ns or less k If any checks are not within tolerance then proceed to the adjustment section at the end of this procedure Part Checks and Adjustments 11302A Service Reference 2 105 ...

Page 125: ...p Response Vertical High Frequency Gain or High Frequency Gain and Step Response Counter View Step Response Adjustments Checks to Perform 1 Medium Frequency Flatness adjust as needed 2 High Frequency Step Response adjust to reduce aberrations 3 Repeat the checks for Vertical Step Response and Vertical High Frequency Gain 1 Medium Frequency Flatness adjust as needed 2 High Frequency Response adjust...

Page 126: ...aveform c Press the CURSORS button and select the Vertical Cursors Position one cursor to the top and one to the bottom of the waveform d Select Set Ref and dB changes to On status to establish a reference amplitude of 5 divisions The tl Vert readout should be 100 4 9 5 1 divs Check Medium Frequency Step Flatness e Set the Main Horizontal Size to 20 ns div f Use the left Signal Standardizer Positi...

Page 127: ...nt aberrations are 5 or less using the same process followed for the LEFT compartment see step k above There is normally a small difference in the step response between the LEFT and CENTER compartments A large difference indicates an instrument malfunction or a problem with a Signal Standardizer plug in unit In the following adjustmems some compromise may be necessary between the best step respons...

Page 128: ...nter if RlOO is adjusted C320 R320 L320 These components are a tuned network C320 affects response R320 dampens ringing and 1 320 has a small effect on response The loop can be squeezed or pulled apart to alter the shape of aberrations C321 R420 L420 This is another tuned network with effects similar to the one above R330 C330 These components compose a tuned network C331 This component affects lo...

Page 129: ...dout is 5 v Adjust the left Signal Standardizer Position control to position the top of the waveform between the two Vertical Cursors which indicate the allowable aberration limits w Adjust the aberrations to be within the limits Vertical Cursors by making small incremental changes in the settings of the above listed components Start at the top of the list and work down When aberrations are within...

Page 130: ...ial Setting RlOO midrange R320 midrange R330 midrange R510 fully CW CRT Termination Resistor midrange z If any of the following adjustments are inadvertently adjusted refer to RS70 Part 11 Readout Jitter R600 Part 10 Spot Shift R610 Part 12 Vertical Center Checks and Adjustments 11302A Service Reference 2 111 ...

Page 131: ...Step Rep Rate 1MHz Oscilloscope Mainframe WAYEFORM menu Scope L a Adjust the left Signal Standardizer Amplitude and Position controls for a centered 5 division waveform b Set the Horizontal Size to 10 ns div c Press the WAVEFORM button and select Count In for display d Press the COUNIER button and select Freq Measure The display screen should now have a 5 division step and the 1 division Count In ...

Page 132: ...e of the step 0 8 to 1 2 div is not adjustable If the amplitude is out of the acceptable range refer to the Troubleshooting section Adjustments to the aberrations also will affect risetirne If either risetime or aberrations exceed specifications adjust the following components for the best compromise between aberrations and risetime See Figure 2 33 for the adjustment locations on the Al2 Vertical ...

Page 133: ... Press the ENHANCED ACCURACY button twice calibration Generator Amplitude SV Standard Amplitude a Adjust the reference cursor left knob to the vertical center of the trace Bisect the trace as exactly as possible using the FINE setting of the knob b CHECK that the Vert Ref readout is within DC Balance specifications in Table 2 6 next page c Adjust the Vertical Offset to position the trace exactly o...

Page 134: ...to the waveform base and top Place the reference cursor at the waveform base and the other cursor at the top I CHECK that the 1 1Vert readout is within the specifications of Table 2 6 TABLE 2 6 Vertical Cursor Tolerances Plug In Type DC Balance t Vert Accuracy Step b Step 1 11A32 230mV 4 910 5 090 v 11A33 180 mV 4 890 5 110 v 11A34 230mV 4 910 5 090 v m Press the MEASURE menu button and select Min...

Page 135: ... Impedance 50 0 Horizontal Size 2 1S div Trigger mode Auto Main trigger level 0 V RF Synthesizer Frequency 50 kHz Amplitude 200 mY rms a Adjust the RF Synthesizer Amplitude to produce a waveform about 6 divisions in height b Change the VERTICAL OFFSET and as you are turning the knob CHECK that the signal moves up and down on the screen while the triggering point the leftmost edge of the sweep stay...

Page 136: ... Set the Delayed Horizontal Size to 2 J I S and ensure that the Dly1 Trig level is zero k Change the VERTICAL OFFSET and as you are turning the knob CHECK that the signal moves up and down on the screen while the triggering point stays at a fixed point on the screen When you are finished return the offset to zero 1 Select AC coupling for the Delayed trigger m Change the VERTICAL OFFSET and as you ...

Page 137: ...nframe TRIGGER LEVEL menu Main High Trig Sensitivity Norm Trigger mode Trigger Level 0 V Horizontal Size 200 ms div COUNTER Freq Measure Averages 1 Low Frequency Generator Function Sine wave Frequency 1 Hz Amplitude Adjust for 4 Vp p a Verify that the period of the displayed sine wave is 5 divisions 0 5 divisions If not readjust the Low Frequency Generator for a 5 division 1 second period sine wav...

Page 138: ...m height of 1 75 divisions 350 mV p p Throughout this test be precise in establishing waveform heights as nearly as possible to the specification One way this can be accomplished is by using the Vertical Cursor controls Set On Tracking and adjust the a VERT readout to the voltage specification of the adjustment Then by simultaneously using the VERTICAL POS control and adjusting the Amplitude contr...

Page 139: ...Synthesizer for a vertical amplitude of 5 25 divisions or 742 mV rms If using the cursors the amplitude is 1 05 V p p n Reinstall the SX attenuator in the signal path o Change the trigger sensitivity of both the Main and Delay 1 triggers to Low SensMy p Adjust the TRIGGER LEVEL of both the Main and Delay 1 triggers CHECK to verify that stable traces can be established on the screen q Change the tr...

Page 140: ...ble012 Q076 00 Note Use the specified cables only Power Divider BNC Adapter RF Synthesizer Initialize the os illoscope s mainframe then perform the following RF Synthesizer RF Frequency 10 MHz Amplitude 38 9 mV rms a Start the test TRJG_SENS_MAIN Follow the instructions given on the PC Checks and Adjustments 11302A Service Reference 2 121 ...

Page 141: ...Coaxial cable 012 0076 00 RF Synthesizer RF Use the specified cables only Power Divider BNC Adapter Initialize the oscilloscope s mainframe then perform the following RF Synthesizer son Frequency 10 MHz Amplitude 38 9 mV rms a Start the test TRIG_SENS_DELAV Follow the instructions given on the PC Checks and Adjustments 11302A Service Reference ...

Page 142: ...nter TLmer Internal Trigger Accuracy Setup Procedure To Amplifier CH 1 11302A Q 0 0 From Galibrator Signal Flow Through Low Pass Filter coaxial Gable The mainframe must have the top and bottom covers installed and be in the Enhanced Accuracy state a Start the test INT_TRIG_ACC_PC Follow the instructions given on the PC Checks and Adjustments 11302A Service Reference 2 123 ...

Page 143: ...CT Note Use the specified cables only The mainframe must have the top and bottom covers installed and be in the Enhanced Accuracy state a Start the test EXT_TRIG Follow the instructions given on the PC DO NOT adjust the external trigger accuracy if all the verification checks passed Proceed to the external counter timer accuracy check Checks and Adjustments 11302A Service Reference ...

Page 144: ...ator BNCT Note Use the specified cables only The mainframe must have the top and bottom covers installed and be in the Enhanced Accuracy state a Start the test EXT_CT Follow the instructions given on the PC DO NOT adjust the external counter timer trigger accuracy if all the verification checks passed Proceed to the next procedure Part Checks and Adjustments 11302A Service Reference 2 125 ...

Page 145: ...tment for a line trigger source 11302A Q 0 0 The top and bottom mainframe covers may be on or offfor this test a Start the LINE_TRIG test and follow the PC instructions Verification is automatic DO NOT proceed with adjustment unless the verification phase failed Checks and Adjustments 11302A Service Reference ...

Page 146: ...the selfcal b Press the WAVEFORM button and define an XY trace representing L vs Cl c Adjust XY INTENSITY to dim the resultant dot waveform to a level low enough to prevent possible CRT damage d Adjust the reference cursor left knob to the center of the dot Use the FINE knob adjustment e CHECK that the Horlz Ref readout is within specifications of Table 2 8 on the next page f Adjust the Horizontal...

Page 147: ...m Re adjust the reference cursor left knob to the center of the left dot and use the right Jmob to adjust the other cursor to the center of the right dot n CHECK that the AHorlz readout is within the specifications of Table 2 8 Plug In Amplifier Type 11A32 11A33 11A34 TABLE 2 8 Horizontal Tolerances DC Balance Step e 330mV 280 mV 330 mV AHorlz Accuracy Step n 4 885 5 115 v 4 865 5 135 v 4 885 5 11...

Page 148: ...e Mainframe Vertical Size 500 mV div Horizontal Size 500 J S div Impedance 50 l Calibration Generator Amplitude S V Standard Amplitude Test Oscilloscope Horizontal 500 l Sidiv Vertical 100 mV div Triggering Auto a Use the VERTICAL POS control to center the waveform vertically b CHECK that the signal displayed on the Test Oscilloscope shows that the bottom of the waveform is within 175 mY of ground...

Page 149: ...riggering occurs NOTE This setup ofthe Test Oscilloscope will be used in an upcomingstep in which the trigger level adjustment is somewhat difficult Leave the settings on the Test Oscilloscope as they are through the end ofthis procedure Part j CHECK that the low level of the signal is in the range of 0 0 5 V and the high level of the signal is in the range of 2 4 5 V k On the mainframe set the tr...

Page 150: ...output to the Test Oscilloscope u Set the Horizontal Size to 1 ms div Use the TRIGGER LEVEL menu to establish Single Mode NOTE When in Single Mode the knobs and buttons willnot respond in a nonnal manner and the mainframe may appearto be locked up Nonnal operation may be reestablished by removing the TRIGGER RESETsignal and touchingany button v CHECK that the low level of the signal on the Test Os...

Page 151: ...nel Test Oscilloscope D Not comected yet son Termination son Termination RF Synthesizer RF Output Coaxial Cable Initialize the osciiJoscope s settings then perform the following Install the top and bottom covers on the mainframe RF Synthesizer Frequency 8 5 MHz Amplitude 224 mV rms Test Oscilloscope Horizontal SO ns div Vertical 200 mV div Input Impedance 1M l if selectable Oscilloscope Mainframe ...

Page 152: ...n 8 5MHz 9 9MHz 10 1 MHz 11 5 MHz PLL Unlocked message appears PLL is locked no message PLL is locked no message PLL Unlocked message appears b Disconnect the coaxial cable from the COUN1ER REF CLOCK connector c Select lot as the mode for the Ref Clock Utility menu 1 0 BNC d Connect the coaxial cable from the test scope to the rear panel COUNTER REF CLOCK connector e CHECK that the p p amplitude o...

Page 153: ...nel 50 1 Termination From10 MHz OUT on Rear Panel Install tbe top and bottom covers on the mainframe RF Syntbesizer RF Synthesizer RF Frequency _ _ _ _ _ 50 MHz Amplitude 12 5 mV nns Left SigDal Standardizer Test Vert or Horiz Freq Resp Position 12 o clock Amplitude _ Fully clockwise maximum a Start test CAL CT FREQ ACC and follow instructions on the PC The Main Intensity may needadjustment during...

Page 154: ...t to COUNTER REF CLOCK on Rear Panel Note Terminations Coaxial Cable Use the specified cables only 42 inch Coaxial cable 012 0057 01 Install tbe top and bottom covers oo tbe mainframe RF Synthesizer 18 lnch Coaxial Cable 012 0076 00 _ BNC Adapters i Divider Frequency 100 MHz Amplitude 140 mY rms a Start the test CAL_CT_SENS_EXT_R Follow the instructions given on the PC Checks and Adjustments 11302...

Page 155: ...n rate 11302A Q 0 Connect to SWEEP GATE on Rear Panel 0 Ampllfler Cl11 CHZ Coaxial ca tlle The top and bottom mainframe covers must be installed for this test a Start the test Cf_2NS_HO Follow the instructions given on the PC DO NOT proceed with adjustment unless the verification phase failed Checks and Adjustments 11302A Service Reference ...

Page 156: ...on Rear Panel 0 Connect to SWEEP GATE on Rear Panel son Termination 2X Attenuator Coaxial cable RF Synthesizer RF Connectto 10 MHz OUT Time Mark Generator Coaxial cable The top and bottom mainframe covers must be installed for this test Time Mark Generator Markers 2 l lS RF Synthesizer Frequency 500 MHz Amplitude 700 mV rms a Start the test HOLDOFF_BY_EVENTS Follow the instructions given on the PC...

Page 157: ...S Follow the instructions given on the PC DO NOT proceed with adjustment unless the verification phase failed Main to Delayed Time Interval Triggered After b Start the test M_D_TRIG Follow any instructions on the PC DO NOT proceed with adjustment unless the verification phase failed c When the test M_D_TRIG finishes proceed to step d Delay 1 to Delay 2 Time Interval Triggered After d Start the tes...

Page 158: ...l Note use the specified ca bles only 42 inch Coaxial Cable 012 0057 01 BNC Adapter 500 18 inch Coaxial Cable 012 0076 00 The top and bottom mainframe covers must be instaJJed for this test a nd the mainframe must be in Enhanced Accuracy before running this test Check for the EA symbol on the lower right side of the CRT RF Synthesizer Frequency 100 MHz Ampl itude 700 mV rms a Start the test CAL_CT...

Page 159: ...2 J LSidiv c Press Vert Size select 50 n Plug In impedance and select the BW limit for the value nearest 20 MHz d Press HOLDOFF and select Video Holdoff 525 60 STD for NTSC or 625 50 STD for PAL and LINES START e Adjust the Vertical Offset to vertically center the signal s back porch or color burst See Figure 2 34 f Adjust the Vertical Size use Fine if necessazy to adjust the display so the horizo...

Page 160: ...tions The signal s transitions should always occur at the same horizontal location at any Vertical Size Div in this range sync tip amplitude between 28 div and 30 div _ ______ Sync Tip 1 i Back Porch Color Burst Figure 2 34 Video waveform Checks and Adjustments 11302A Service Reference 2 141 ...

Page 161: ... FACTORY should be run whenever CATS testing is complete for a mainframe or hen you expect a long delay before returning to complete the procedure on a mainframe Do not touch any oscilloscope controls or tum offthe instrument duringthis test Disturbing the instrument duringthis test could cause loss ofall calibration constant infonnation and anon functional instrument a Start the test SAVE_FACfORY...

Page 162: ...e Date d Touch On under DATE Verify that the date shown in the upper right comer of the CRT is correct To change the date use the arrows under Select to choose the month or number in the displayed date that you want to change The selected item is highlighted Change the selected item using the arrows under Set e When the date is correct select 12 Hour or 24 Hour under TIME Verify that the time show...

Page 163: ... voltages present on their cases Disconnectpowerbefore cleaning the instrument or replacingparts The top and bottom cabinetpanels or covers provide protection from operating potentials present within the instrument In addition they reduce radiation ofelectromagnetic interferencefrom the instrument Fasteners retain the cabinet panels To remove thepanels loosen the fasteners and lift the panels off ...

Page 164: ...abrasive cleaners or alcohols Clean the CRT faceplate with a soft lint free cloth dampened with denatured alcohol Cleaning the interior of the instrument should seldom be necessary The best way to clean the interior is to blow off the accumulated dust with dry low pressure air such as from a vacuum cleaner Remove any dirt that remains with a soft brush or a cloth dampened with a mild detergent and...

Page 165: ... is obvious however particular care must be taken if heat damaged parts are found Overheating usually indicates other trouble in the instrument therefore correcting the cause of overheating is important to prevent recurrence of the damage Periodic Electrical Adjustment To ensure accurate measurements check the electrical adjustment of this instrument after each 2 000 hours of operation or every 24...

Page 166: ... faced ones in the Power Supply Module should be considered hazardous This is because these components are at the AC line voltage potential Always remove the line power cord before any disassembly An electric shock hazard exists when the 11302A is not grounded Do not remove the ground wire green yellow that connects the power supply chassis to the mainfram _ When ordering replacement parts from Te...

Page 167: ...sceptibility to Damage From Static Discharge Relative Semiconductor Classes Susceptibility Levels1 MOS or CMOS microcircuits and discrete or 1 linear microcircuits with MOS inputs most sensitive ECL Schottky signal diodes Schottky TTL High frequency bipolar transistors JFETs Linear microcircuits Low power Schottky TTL TTL least sensitive Voltage equivalent for levels 1 100 to 500 V 2 200 to 500 V ...

Page 168: ... static sensitive assemblies or components should be performed only at a static free work station by qualified service personnel We recommend use of the Static Control Mat Tektronix Part 006 3414 00 and Wrist Strap Tektronix Part 006 3415 00 4 Allow nothing capable of generating or holding a static charge on the work station surlace 5 Keep the component leads shorted together whenever possible 6 P...

Page 169: ...rge tip to loosen the fasteners Rotating the fastener a quarter turn counter clockwise will loosen it These covers fit tightly around the chassis and sometimes will stick They may have to be pried off A small cover fits over the access hole on the side of the plug in compartment This access hole is for positioning wire cables inside the mainframe A Torx screw secures this cover Whenever a specific...

Page 170: ...age the mainframe and the plug in 6 To tum off the power while the J60 jumper is in place use the PRINCIPAL POWER SWITCH on the rear panel To return to normal operation of the ON STANDBY switch follow the preceding instructions in reverse order An alternate procedure to electrically lock on the power is as follows 1 Switch the PRINCIPAL POWER SWITCH on the rear panel to OFF Remove the AC power cab...

Page 171: ...ON The power will now remain on regardless ofthe ONISTANDBY switch sf tting Do not remove or install a plug in unit while the power is on Doing so may damage the mainframe Qlld plug in 10 To tum the power off while the J820 jumper is on the inner pins use the PRINCIPAL POWER SWITCH To return to normal operation of the ON STANDBY switch follow the preceding instructions in reverse order Maintenance...

Page 172: ... Right Front Panel A16 Memory Expansion Dltferentlal Vertlc al __ Delay Line A4 Regulator A15 f Counter Timor A14 Time Base Power Supply Module Reference Optional A1 Plug In Interface Agure 3 1 Field Replaceable Units FRU Locator 3 10 Maintenance 11302A Service Reference ...

Page 173: ...laceable Units IC Detail U440 U1100 U1300 U1400 c j X y _ r f 5f J L A11 Maln Processor U1230 BT1190 U1330 U1430 U1760 U270 U750 A13 Scope Logic Figure 3 1 cont Field Replaceable Units FRU Locator Maintenance 11302A Service Reference 3 11 ...

Page 174: ...facing the rear panel The Power Supply Module will now be at the bottom of the instrument 2 Remove the eight Torx screws that secure the Power Supply Module see Fig 3 2 3 Carefully pull the Power Supply Module part way out of the mainframe Stop before the wires to the A2A2 Control Rectifier board connectors begin to stretch taut or bind Torx Screws Torx Screws Excessive pulling on the Power Supply...

Page 175: ...board NOTE Record the connectors locationsfor correct replacement See Figure 3 3 5 Remove the chassis ground green yellow wire 6 Remove the Power Supply Module J81 J65 J62 J64 J66 Figure 3 3 Bottom view of A2A2 Control Rectifier board showing connector locations Maintenance 11302A Service Reference 3 13 ...

Page 176: ...es only one way Remove the four long Torx screws holding the assembly together Hold the housing as the last screws are removed 2 Separate the grill and the housing from the motor 3 Remove the two wires at their motor connections Note that the red wire is and the brown wire is 4 Remove the fan motor NOTE Observe theposition in which the motor was mounted Replace it the same way or thefan wires may ...

Page 177: ...and safety glasses should be worn Avoid striking the CRT on any object that might cause it to crack or implode 1 Position the 11302A right side down Remove its top and bottom covers Remove the access hole cover from the inner side of the plug in compartment 2 Remove the six Torx screws from the rear panel plate Allow the plate to remain suspended from its wires as shown in Figure 3 4 Protect the s...

Page 178: ...ntenance Ground Wire Connection The Anode lead and Holder Should Be Stored in the Keyhole Recess Figure 3 4 Rear view of CRT base pin socket and Inside view of the rear panel 3 16 Maintenance 11302A Service Reference ...

Page 179: ...sive network CRT termination resistor Remove both leads to the A14 Time Base board 9 Remove the high voltage shield from over the multiplier area on the A13 Scope Logic board Remove the black 11210 white J1310 and red JllOO leads from the board Withdraw these leads and put them inside the rear panel area Remove J53 from the A13 Scope Logic board 10 Remove the CRT by sliding it slowly through the f...

Page 180: ...uting the leads NOTE Pull the leads through the rearofthe 11302A so that they don t tangle inside the CRT shield The base pin socket may need to be moved around to insert the CRT base into its retaining ring 2 Reinstall the A7 Touch Panel board and the CRT Scale Cover Follow the procedure to replace the A7 Touch Panel board IMPORTANT Tighten the CRT Scale Cover screws by using a diagonal method on...

Page 181: ... the anode lead to its holder 8 Place the anode lead and holder into its keyhole shaped recess See Figure 3 4 The anode holder slides into the round part and the anode cable fits into the slot alongside it 9 Check that all wires are placed into the edge grommets of the rear panel area Dress the wires into the cable retainers Make sure that all Peltola connectors inside the rear panel plate are con...

Page 182: ... handlingmay cause fire explosion or severe bums Do not recharge crush disassemble or heat the battery above 212 F 100 C incinerate or expose contents of the battery to water When storing a battery separate it from all conductive or metal surfaces Do not store batteries loosely or dump them into bins Store them in their original shipping container or individually wrapped in plastic If present batt...

Page 183: ...early labeled Lithium Batteries DO NOT OPEN Check the polarity on the replacement battery matches the mark on the circuit board Replace the battery by inserting it into its mounting bracket Emergency and First Aid Information Manufacturer Battery Type Solvent Solute Maintenance 11302A Service Reference Panasonic Lithium Poly Carbon moooflouride BR 2 3 A Gama Butyrlactone is of low toxicity It can ...

Page 184: ...h plenty of water and use an emergency eye wash if available Report to a medical professional for treatment Leave the area and get fresh air Report to a medical professional for treatment Non toxic according to laboratory testing However report to a medical professional for advice lp case ofyeptjg clear the jmmedjate area Venting will usually last only a few seconds Maintenance 11302A Service Refe...

Page 185: ...orfrom the AJO Front Panel Interface board can make it easier to reach this nur 5 Remove the two Torx sc rews from behind the bottom left of the front casting 6 Set the 11302A right side up 7 Pull the A5 Front Panel Assembly outward until its bottom clears the front casting Move its top outward about three inches away from the casting Withdraw the J73 cable via the access hole through the upper ch...

Page 186: ... the All Main Processor board 4 Disconnect the cable from J75 on the AlO Front Panel Interface board 5 Remove the A17 Upper Right Front Panel Assembly To replace the A17 Upper Right Front Panel Assembly follow the preceding steps in reverse order Remember to fold the extra length of the ON STANDBY switch wires under the ribbon cable from J71 on the All board and connect at J60 with the brown lead ...

Page 187: ...rt posts and some wiring NOTE Refa to Checks AfterFRU Replacement in this section A1 Plug In Interface Board Remove the Al Plug In Interface board as follows 1 Set the 11302A right side up Remove its top cover 2 Remove the plug in units 3 Remove the nine Torx screws securing the interface connector receptacles to the chassis See Figure 3 6 4 Disconnect all connectors from the All Main Processor bo...

Page 188: ...at neither this connector nor the All Main Processor board is damaged A plastic pin guide covers the Al Plug In Interface connector underneath the All Main Processor board This guide may come off when the board is removed Replace the pin guide if it does 5 Remove the Power Supply Module See Power Supply Module Removal in this section Remove the connectors except for 170 and J81 from the A2A2 Contr...

Page 189: ... 6 J95 I 7 Heat Sink Mounting Screws Figure 3 7 Connector and screw locations for the removal of the A4 Regulator board Remove the two Tone screws from the metal heatsink at the rear of the board Holes are provided in the chassis across from these screws to insert a screwdriver NOTE The A4 Regulator board is now unfastened from the chassis However it still remains connected to the Al Plug In lmerf...

Page 190: ...of the board These tiedowns keep the wires separated between the connector receptacles Remove the J64 cable from the A2A2 Control Rectifier board through the chassis opening beside the Al Plug In Interface board Remove the Peltola connectors from the A1 Plug In Interface board Remove the Al Plug In Interface board To replace the Al Plug In Interface board follow the previous procedure in reverse o...

Page 191: ...rd 3 Inspect the interconnecting pins ofJ95 and J96 on the A4 Regulator board Check that the pin tips are straight and evenly spaced Reconnect the J57 connector to the board Reinstall the A4 Regulator board by inserting the J95 and J96 interconnecting pins into their connectors on the Al Plug In Interface board Reinstall the two Torx screws to the metal heatsink at the rear of the A4 Regulator boa...

Page 192: ...ys align horizontally Check the pins before reinstallingthe All Main Processor board Move the flange of the cable protector out of the way Move the J60 cable away from the chassis Check that no wires will be pinched under the board Reinstall the All Main Processor board Follow the replacement instructions given in the All Main Processor board removal procedure in this section Mamtenance 11302A Ser...

Page 193: ... remains connected to the Al Plug In Inteiface board through interconnectingpins 5 Carefully disconnect pins J95 and J96 from the Al Plug In Interface board by pulling the A4 Regulator board towards the rear 6 Remove the A4 Regulator board To replace the A4 Regulator board follow the previous procedure in reverse order Use care when reconnectingpins 195 and 196 to the Al Plug In Interface board Sh...

Page 194: ...erface board as shown in Figure 3 10 Do not remove these connectors from the A7 Touch Panel board They are very difficult to reconnect to the board when it is installed in the mainframe 4 Remove the four Torx screws holding the CRT Scale Cover bezel by using a diagonal method as illustrated in Figure 3 8 Start with the 1 screw and follow the arrows to 4 0 f u v I v v v K 1 G G Begin Here Figure 3 ...

Page 195: ...plosion shield is easily scratched Since scratches could reduce visibility protect the shield while it is removed 7 The lens frame the graticule light assembly and the A7 Touch Panel board make up a single part They may be ordered as such Tektronix Part Number 670 9297 00 Replace the A7 Touch Panel board by following the previous procedure in reverse order But first read the following NOTE and CAU...

Page 196: ...comers ofthe CRTfaceplate An unnecessary removal and replacement ofthe CRT might result Begin with the screw marked 1 in Figure 3 8 Tighten it lightly until it stops turning Next go diagonally across the faceplate to the 2 screw Tighten it lightly until it stops turning Then drop down to the 3 screw and tighten itfirm Go diagonally across the faceplate to the 4 screw Tighten it firmly Return to th...

Page 197: ... AIO Front Panel Interface board for the instrument s calibrator connections Remove the 114 inch nut from this bracket It is located behind the upper right front comer of the instrument 4 Remove the four board retaining screws 5 Remove the AlO Front Panel Interface board To replace the AlOFront Panel Interface board follow the previous steps in reverse order NOTE When the circuit board is reinstal...

Page 198: ......

Page 199: ...section To replace the All Main Processor board follow the previous procedure in reverse order Additional instructions follow L Move the J60 connector cable away from the board s position Be certain that all wires are out of the way Check that the plastic flange is moved off the side See that the pin guide is on the connector of the Al Plug In Interface board 2 Set the board into the 11302A so tha...

Page 200: ...ady Peltola cable into the outside 141 socket The inside Reset Pe tola cable plugs into the inside 142 socket The 160 connector cable is extra long Dress it along and underneath the All Main Processor board and under the 171 connector 5 Move the plastic cable protector flange towards the inside of the 11302A 6 Reinstall the top cover 3 38 Maintenance 11302AService Reference ...

Page 201: ... each cover towards the end ofthe instrument where it is located The front cover moves towards the front and the rear cover moves towards the rear Moving the cover about 118 ofan inch will release the dip Then the cover can be lifted from the instrument See Figure 3 12 3 Remove the Torx screw from the center of the left side frame section Remove the other two screws from its ends Remove the frame ...

Page 202: ... two CRT leads from thefront neckpin wires 5 Remove the two board retaining Torx screws 6 Remove the Al2 Vertical Amp board Lift the front end of the board outward and slide the rear pan past the chassis frame J 52 0 C c J28 J27 6 _ t G U 0 0 f z J34 J 36 J1 S J32 J 33 J 20 J80 Figure 3 13 Connector locations for removal of the A12 Vertical Amp board Maintenance 11302A Service Reference ...

Page 203: ...T deflection leads to the rear neck pin wires NOTE Use care when reconnectingthe deflection leads Do not bend their respective CRT neckpins 3 Reinstall the side frame section Reinstall its screws and tighten them 4 Reinstall the decorative trim covers to the front and rear of the side frame section Slide their retaining clips on the inside of each cover into place Reinstall the cover Torx screws a...

Page 204: ...move the screws from the rear panel plate Allow the plate to hang from its wires Protect the surfaces underneath the plate from scratches 3 Disconnect all the connectors from the A13 Scope Logic board See Figure 3 14 J09 J16 JSS JS3 c Ei r f E 7 J85 J86 JS4 J77 Figure 3 14 Connector locations for removal of the A13 Scope Logic board Maintenance 11302A Service Reference ...

Page 205: ... shield from the board Remove the J55 connector It is located at the edge of the board left of the UlOlO Multiplier as facing the rear See Fig 3 14 Remove the board s three CRT wires black J1210 white J1310 and red J1100 7 Remove the four 1 4 inchspacer posts from the multiplier area Remove the seven Torx screws holding the board 8 Push the plastic cable protector flange off the edge of the chassi...

Page 206: ...ard s J90 connector with the pin holes in the board at both ends of the P91 connector NOTE The interconnectingpins from the 190 connector usually align vertically However they may not always align horizonJally Check the pins before reinstalling the board Press down on the circuit board to reconnect the J90 pins Check that all pins reenter the P91 connector and are about the same height Check that ...

Page 207: ...tighten the spacerposts they may break off Reinstall and tighten the seven Torx screws to hold the board 6 Reconnect all connectors to the board as shown in Figure 3 14 NOTE The 123 Peltola cable to the A14 Time Base board is dressed between the four holdersfor the 184 and 185 connectors This cable lies near the adjoining edges ofthe circuit boarcis Ifthe optional A15 Counter Timer Reference board...

Page 208: ...the front casting This nut is located behind the lower right front corner 3 Disconnect the two leads from the horizontal CRT neck pins These leads are located on the upper rear edge of the board 4 Disconnect all the connectors as shown in Figure 3 15 5 Remove the seven Torx screws holding the board 6 Remove the A14 Time Base board J15 JOS J22 J25 J24 J21 Figure 3 15 Connector locations for removal...

Page 209: ...orx screws to hold the board Reinstall and tighten the 1 4 inch nut to the bracket Tighten the Torx screws 4 Reconnect the CRT neck pin leads and all connectors NOTE Dress the J23 Peltola cable in between the holdersfor the 184 and 185 connectors The cable lies along the adjoining edges ofthe circuit boards If the optwna Al5 Counter Timer Reference board is installed the 126 Peltola cable will be ...

Page 210: ...sting Allow the plate to remain suspended from its wire connections Protect the surfaces underneath the plate from scratches 4 D isconnect the delay line leads from the A12 Vertical Amp board and remove the two screws holding the Delay Line Adapter board Carefully extract the leads and board and move them out of the way 5 As viewed from the rear the A15 Counterffimer Reference board as shown in Fi...

Page 211: ...t board supports 8 Remove the Al5 Counterrfimer Reference board To replace the A15 Counterfrimer Reference board follow the preceding steps in reverse order Maintenance 11302A Service Reference NOTE Be certain ail Peltola connectors are 1econnected to their BNC sockets before reinstallingthe rear panelplale 3 49 ...

Page 212: ... Expansion board by removing two screws To replace the A16 Memory Expansion board follow the preceding steps in reverse order WARNING I A lithium battery BT520 is mounted on the A16 Memory Expansion board This battery requires special handlingfor disposal Refer to Lithium Battery Handling Disposal and Fusr Aid in this section r S I I lr l o l f Sl il x Figure 3 17 Connector location for removal of...

Page 213: ... from its wires Protect the surfaces underneath the plate from scratches 4 Remove the 5 16 inch nut from the ground wire connection in between the BNC connectors on the inside of the plate Remove the ground wire NOTE Record the localions ofthe Peltola wins so they ct111 be correctly reconnected 5 Remove the Peltola connectors 6 Remove the rear panel plate __ e 0 Torx Screws Figure 3 18 Locations o...

Page 214: ...ear panel plate follow the previous steps in reverse order NOTE Ch ck that all wir4ls an out ofthe way beforereinstalling the plate Be certain rluzt all Peltola connectors are reinstalledinto their BNC sockets Maintenance 11302A Service Reference ...

Page 215: ...Fig 3 12 2 Remove the Torx screws from the left side front and rear decorative trim covers 3 Remove the Torx screw from the left side frame section Remove the other two screws from its ends Remove the frame section handle 4 Disconnect all the connectors from the A12 Vertical Amp board See Figure 3 13 for their location 5 Remove the two CRT leads from the front neck pin wires 6 Remove the A12 Verti...

Page 216: ...he board forward to provide extra clearance for withdrawing the Delay Line leads 5 Remove six Torx screws and ease the rear panel plate away from the rear casting Allow it to remain suspended from its wires see Figure 3 4 Protect the surface underneath from scratches 7 Working from the rear of the instrument remove the two screws holding the Delay Line Adapter board near the rear of the A12 Vertic...

Page 217: ...r finger in a plastic sheath to protect the IC 2 Remove the cover slowly to prevent the IC from falling out NOTE Observe the indexofthe IC before removing it 3 Remove the IC with tweezers Avoid touchingthe IC or the socket contacts with yourfingers Finger oils can lower reliability Replace the Slam Pack IC as follows 1 Using tweezers put the flat edge of the replacement IC against its index spring...

Page 218: ...er EndTaba _27 Index IC 6 i _ _ j Index Spring MaUng Receues Slam Pack IC 1 rw u lu Index Index Index Index Index Index Index Dual ln Une Package IC Figure 3 19 IC lead indexing diagram 3 56 Maintenance 11302A Service Reference ...

Page 219: ...edure until the instrument has been repaired Firmware Upgrade Procedure The instrument is extremely vulnerable during firmware version changes Ifthis procedure is not carefully followed the instrument will have to be completely reca ibrared All settings previously saved during power down will be lost as a result ofthis procedure To remove and replace firmware ICs proceed as follows Maintenance ll3...

Page 220: ...ain that pin 1 is positioned correctly when replacing 1Cs NOTE Use IC insertion extraction pliersfor removing and replacing the Cs See Figure 3 20 for an illustration ofthese pliers Do not U5e the label on the 1Cfor an index because it may be applied with one oftwo orientations See Figure 3 19for the correct indexing information 5 Install an 11000 Series plug in unit in the left plug in compartmen...

Page 221: ...POWER SWITCH to OFF 11 Set number 2 and number 4 DIP switches on the All Main Processor board to their open positions 12 Replace the instrument top cover To restore factory calibration if it has been lost from BBRAM proceed as follows to reload Calibration Constants from EEROM 1 Tum the ON STANDBY switch to STANDBY 2 Remove the lithium battery BT1190 from its holder on the All Main Processor board...

Page 222: ...or its color stripe is the same as the color represented by the last digit of the JXX component number Example a green wire would connect to a J05 socket number Some Peltola connectors may have small bands with numbers written on them while others may have no markings at all Multi Pin Connectors 3 60 The pin connectors used to connect the wires to the interconnecting pins are clamped to the ends o...

Page 223: ...Corrective Maintenance Agure 3 21 11 302A cabling diagram Maintenance 11302A Service Reference 3 61 ...

Page 224: ...ti pin connectors Many of the larger gray colored multi pin ribbon connectors have a red line along one side of their attached wire cables This red line indicates the location of pin 1 and 2 or the location of the triangle index mark Some of the gray colored ribbon cables may be stamped with the number of their connectors To remove these gray colored ribbon connectors grasp the white pull tab fast...

Page 225: ... removed To replace the implosion shield proceed as follows 1 Reinstall the implosion shield to the A7 Touch Panel Board The implosion shield can be reinstalled either side out But it must align with the A7 Touch Panel board 2 Follow the procedure to replace the A7 Touch Panel board in this section After reading the replacement instructions begin at step 5 Be certain to heed the CAUTION regarding ...

Page 226: ...of the Power Supply Module NOTE Line fuse F99 is used for both 115 V and 230 V operation It is not necessary to change thefuse when switching the LINE VOLTAGE SELECTOR switch between 115 V and 230 V Circuit Board Fuse 3 64 A13F560 Tektronix Part 159 0021 00 is a 2A cartridge fuse mounted in fuse clips on the Al3 Scope Logic board If this fuse is faulty remove it from the clips and replace it with ...

Page 227: ...lay Quality in Section 2 for the location ofthis adjustment The final adjustment ofR952 must be performed when rhe instrument hasfully warmed up For now adjust R952 so that no trace or readout is visible when the character and trace intensities are set to their minimum values 1 Adjust the front panel Focus and Astigmatism controls for the best display Adjust R1600 on the A13 Scope Logic board refe...

Page 228: ...rformance of the entire instrument it will be n essary to perform the complete Checks Adjustment procedure given in Section 2 Part 2 Extended Diagnostics Part 7 Front Panel Display Adjustments Part 8 Display Quality Part 10 Spot Shift Part 12 Vertical Center Part 13 Magnified Registration Part 15 Plug In Interface Gains all subsections Part 16 Vertical Center Second Pass Part 17 Sweep Slew Rate Se...

Page 229: ...High Frequency Response NOTE When adjusting the verticaL amplifier step response optimize the following itemsbefore altering other amplifier adjustments the lead dress ofthe wires from the CRT Termination Network to the CRT the setting ofthe adjustable resistor on the CRT Termination Network and the settings ofthe fingers ofthe Distributed Capacitance Plate Part 12 Vertical Center Part 15 Plug In ...

Page 230: ...sting the vertical amplifier step response optimize the lead dress ofthe wiresfrom the CRT Qlld the settings ofthe fingers ofrhe Distributed Capacitance Plate before changing other adjustmen ts Part 25 Install Instrument Covers Part 29 Vertical High Frequency Response Recheck perfonnance with the covers on and the instrument wanned up Pan 46 Store Cal Constants Part 47 Reset DIP Switches To verify...

Page 231: ...er on and wait for the self test and new configuration adjustment processes to complete Select Enhanced Accuracy by pushing the front panel ENHANCED ACCURACY button twice When the Enhanced Accuracy process is complete check that the Self calibration completed successfully message appears on the screen If one plug in unit is being used move it to the center plug in compartment If two plug in units ...

Page 232: ...nted in Section 2 in the noonal sequence A10 Front Panel Interface Board 3 70 After the AIO Front Panel Interface board has been replaced according to the instructions in this section the following checks and adjustments should be performed 1 Follow the instructions in Mainframe Preparation in Section 2 2 Perform the following checks and adjustments as described in Section 2 Part 3 Touch Screen Pa...

Page 233: ... new set of calibration constants can be loaded Refer to Method 4 Select the method that is appropriate for your particular situation and follow the instructions for that method After completing those instructions refer to Readjustment which follows Method 4 This is the preferred method for situations in which either Method 1 or Method 2 can be used In some instruments the calibration constants ca...

Page 234: ... transferred to the replacement board after it is installed in the mainframe To transfer the calibration constants from the original All Main Processor board to a data file proceed as follows 1 Set DIP switch number 5 on the All Main Processor board to its closed position Refer to Mainframe Preparation in Section 2 for the Ioc ation of the switch 2 Select utility from the main menu of the PC 3 Sel...

Page 235: ...skette 1 Set DIP switch numbers 2 3 4 and 5on the All Main Processor board to their closed positions Refer to Mainframe Preparation in Section 2 for the location of this switch 2 Connect the PC to the oscilloscope as described in Section 2 3 Turn on the instrument and wait for the full power up process to complete wait about one minute Set DIP switch number 2 to its open position 4 Select utility ...

Page 236: ...Match Part 22 Front Panel Calibrator Part 23 Intensity Settings Part 25 Instal l Instrument Covers Store Cal Constants Part 26 Sweep Timing Accuracy Part 33 Trigger Sensitivity Part 34 Trigger Accuracy Part 35 line Trigger Part 36 Center Compartment X Axis Accuracy Part 37 Rear Panel Input Output Signals Part 41 2 ns Holdoff Part 43 Time Interval Using Sweeps Part 46 Store Cal Constants Part 47 Re...

Page 237: ...est from the PC menu When this test has been completed the readout display should be properly aligned to the CRT graticule 4 To verify the performance of the A12 Vertical Amp board perfonn the checks and adjustments as descnbed in Section 2 listed below Part 2 Extended Diagnostics Part 7 Front Panel Display Adjustments Part 10 Spot Shift Part 11 Readout Jitter Vertical section only Part 12 Vertica...

Page 238: ...inal adjustment of R952 must be performed when the instrument has fully warmed up For now adjustR952 so that no trace or readout is visible when the character and trace intensities are set to theirminimum values 1 Adjust the focus and astigmatism controls with the front panel controls for the best display Adjust R1600 on the A13 Scope Logic board refer to Display Quality in Section 2 of this manua...

Page 239: ...Rate Selfcal Part 18 Sweep Gains Part 19 Beam Registration Part 20 Cursor to Graticule Match Part 22 Front Panel Calibrator Part 23 Intensity Settings Part 25 Install Instrument Covers Store Cal Constants Part 37 Rear Panel Input Output Signals Part 41 2 ns Holdoff Part 43 Time Interval Using Sweeps Part 46 Store Cal Constants Part 47 Reset DIP Switches To verify the performance of the entire inst...

Page 240: ...GRAT_PREP adjustment using the PC Run the AUTOCAL_VERT test from the PC menu When this test has completed the readout display should be properly aligned to the CRT graticule 3 To verify the performance of the A14 Time Base board perform the checks and adjustments as descnoed in Section 2 listed below Part 2 Extended Diagnostics Part 6 ACVS Gain Part 7 Front Panel Display Adjustments Part 10 Spot S...

Page 241: ...mal A B Input Sensitivity Part 41 2 ns Holdoff Part 42 Holdoff By Events Part 43 Time Interval Using Sweeps Part 44 Minimum Time Interval Part 46 Store Cal Constants Part 47 Reset DIP Switches To verify the performance of the entire instrument complete all the checks and adjustments presented in Section 2 in the normal sequence A15 Counter Timer Reference Board After the A15 Counterffimer Referenc...

Page 242: ...stics verify the remainder of the instrument circuitry A Self Test fault causes the instrument to enter Ext Test Diagnostics The Ext Tests Diagnostics are a superset of the instrument s Self Tests These diagnostics allow selective interactive testing Other Troubleshooting at the end of this section lists the circuits that Diagnostics do not fully test Level 0 Kernel Diagnostics The processor canno...

Page 243: ...ent s verification power up tests are running all the LEDs on the front panel are off except during the routine that tests their operation If a fault is detected the instrument halts testing and displays the Block menu refer to Test Menu Examples in this section The block that failed is highlighted in the menu When all the tests are completed without a fault the instrument powers up normally While...

Page 244: ... I STR RECL II I I I I I DISPLAY TESTED II I I I I I I NUMERIC II I I I I I I I DRAM Ul620 DRAM Ul920 DRAM U1600 DRAM U1900 DRAM CI RL UlSOO RAM Addr data line shorts DRAMU1720 DRAMU1820 DRAMU1700 DRAM Ul800 ROM U1200 ROM U1430 ROM U1300 ROM U1400 ROM UllOO ROM U1330 ROM UlOOO ROM U1230 BBRAMU1130 BBRAM U900 3 82 Maintenance 11302A Service Reference ...

Page 245: ... fault is detected The diagnostics provide test index codes for rapid identification of a failed test This code is then referenced to the appropriate test description Index codes are constructed using the following conventions 1 Each code is prefaced with a source ID M L C or R M identifies the mainframe and L C and R identify the left center and right plug ins respectively 2 The fiiSt hex digit i...

Page 246: ...Butt ons Leds Knobs Touch Panel FPCalibra tor on VERBOSE Test Menu Area 3 84 2 INDEX FAULTS 3 pass 4 M2410 1 5 pass 6 pass 7 pass 8 pass 9 pass 10 pass 11 R 12 13 14 off off off 15 LOOP HALT ERR RUN 16 Figure 3 23 Block menu sample display AREA MENU line AREA Touch Panel ROUTINE 1 2 INDEX FAULTS 3 pass 4 pass 5 pass 6 M2410 1 7 pass 8 9 10 11 12 13 14 off off off 15 LOOP HALT ERR RUN 16 Figure 3 2...

Page 247: ...s or options not installed Z is printed if a test returns NO pass or fail information Field 3 This field displays the number of failures nnoon that have accumulated since power up This field is not touch selectable For Block menus the displayed number indicates the number of failures in the Block For Area menus the displayed number indicates the number of failures in the Area Routine menus vary ac...

Page 248: ...nnnn Fld6 Index znnnn F6 Line 3 Lines 4 thru 14 Line 3 Lines 4 thru 14 Figure 3 27 Display of a Plug In Digital Test menu plug In diagnostics only Mainframe Digital Test Menu 3 86 All Rtns t est name Field 1 Desired nnnnn F ld2 The unique features of the Mainframe Digital Test Routine menu follow along with an illustration refer to Fig 3 28 showing its layout of the display Field 2 This field is a...

Page 249: ... Status areas I BLOCK front panel I Fl Field 2 AREA touch panel F3 Field 4 ROUTINE Fld 5 I Line 1 I F7 on VERBOSE Fld 8 Field 9 cnt nnnnn LOOP FlO Fll off HALT ERR Fld 12 Fl3 off RUN F14 Figure 3 30 Test Status areas of the display The display fields shown in Figure 3 30 are used as follows I I I I I I I I I I I Line 15 I Line 16 I Field 1 This field displays the diagnostic Block menu and highligh...

Page 250: ... directep to run The loop count is displayed in Field 9 Field 11 This field displays the current selection of HALT ERR on or oft Field 12 This field is touch selectable and causes HALT ON ERROR to toggle between on and off If on is displayed in Field 11 then the currently selected Block Area or Routine stops running when an error is detected If off is displayed the Block Area and Routine menus rec...

Page 251: ...st Diagnostics on the complete mainframe and plug in combination Halts upon Error TEST EXTENDED This command performs Ext Tests Diagnostics on the complete instrument TEST This query returns one of following ASCII strings TESTPASS TEST M index L index C index R index The index numbers are in the order of occurrence For example the query may return this ASCII string in the following format TEST M23...

Page 252: ...iagnostics mode Ala This command is equivalent to touching the AREA field on the display menu Blb This command is equivalent to touching the BLOCK field on the display menu Did E Hjb LIJ Rlr Sis Ulu Vlv This command is equivalent to moving your finger down the left side of the display s test selection list This command is equivalent to touching the front panel UTILITY major menu button and takes t...

Page 253: ...elow The instrument locks up and does not unfreeze after being repowered turning the power offand then on again The display is poorly aligned and running Enhanced Accuracy EA does not correct the misalignment EA fails repeatedly Autoset is not functioning The instrument deviates significantly from normal operation If any of these conditions occur then using the following procedure usually restores...

Page 254: ...h the abbreviations used in the FRU tables below PIINT FPASS TOUCH FPINTR MPU VERT SCLOG TB CTR EXP CHAR FW EEROM SDI DISLAY BATT ROCS ACVS TRC Plug In Interface board Front Panel Assembly Touch Panel board Front Panel Interface board Main Processor board Vertical Amp board Scope Logic board Time Base board CounterTimer Reference board Memory Expansion board Character Control board Firmware proms ...

Page 255: ...es the first test that failed The last test to pass prior to the first failed test can be useful in isolating the problem Table 3 3 lists the Ex1 Tests Diagnostics error index codes TABLE 3 3 Extended Ext Tests Diagnostics Error Index Codas Error Index Primary Suspect Secondary Suspect Mll XX FW MPU M121X M123X SDI MPU M124X M126X MPU PIINTR plug in Ml27X MPU SCLOG TB Ml31X Ml32X MPU Ml33X M134X E...

Page 256: ...ron beam to the CRT bright pairs of lines appear on the graticule lines in the vertical axis screen refer to Aland A2 in Fig 3 31 mainframe vertical amplifier gain two short bars appear on the screen refer toBin Fig 3 31 readout cursor gain and offset in 1two dots appear on the screen the vertical axis refer to C in Fig 3 31 align the electron beam to the CRT bright pairs of lines appear on the gr...

Page 257: ...ress appears on the screen the message disappears from the screen center plug in xy if present gains dots move left and right on the screen and balances adjusted in mainframe refer to Fin Fig 3 31 trace separation for the left center happens too quickly to see right xy left center and center xy if plug ins are present left plug in if present trigger dot or line moves about on the screen calibratio...

Page 258: ...Troubleshooting 1 v JIIf 1 A1 r l A2 i t t ll t 11 1 2 f ll ort t t t t 11 1 llm l 11 ii y 1 3 _ I H L P Figure 3 31 Enhanced Accuracy adjustment procedure 3 96 Maintenance ll302A Service Reference ...

Page 259: ...lace the Left plug in the Al2 Section 2 Checks and Adjustments Vertical Amp and or the A1 Part 12 Vertical Center Plug In Interface board Part 15 Plug In Interface Gains Part 19 Beam Registration Part 20 Cursor to Graticule Match Center plug in calibration failed Perform the adjustments in Replace the Center plug in the Section 2 Checks and Adjustments A12 Vertical Amplifier and or the Part 12 Ver...

Page 260: ...43 Time Interval Using Sweeps COUNTER Waiting to Finish Pedorm the adjustments in Replace the A14 Time Base Measurement Section 2 Checks and Adjusnnents board Part 43 Time Interval Using Sweeps Other Troubleshooting CRT Module Troubleshooting No Display 3 98 This procedure requires a Test Terminal with an RS 232 C CRT failures may exhibit a variety of symptoms display malfunctions intermittent ope...

Page 261: ...e CRT Termination 3 Check the F560 fuse for the high voltage system which is located on the Al3 Scope Logic board refer to Fig 3 32 for the location of this fuse Replace the fuse if necessary fektronix Part 159 0021 00 The diagnostics do not cover the grid bias circuit on the Al3 Scope Logic board therefore you need to refer to the Display Quality test in Section 2 Checks and Adjustments for the a...

Page 262: ...fuse locations NOTE All thefollowing voltages are referenced to ground Pin 1 1600 VDC heater Pin 2 1600 VDC cathode Pin 3 1650 VDC grid to 1690 Pin 4 900 VDC focus Pin 6 OVDC Pin 6 OVDC Pin 7 40VDC Pin 8 5 90 VDC varies with FP Astig setting Pin 9 OVDC _ _ 3 100 Maintenance 11302A Service Reference ...

Page 263: ...off the screen ifpossible A possible failure that occurs in CRTs is a G K short This is a short or low impedance between the grid and cathode As a result of this condition the grid and cathode are at nearly the same voltage A symptom of this condition is a very bright trace that can not be adjusted using the front panel intensity controls Other failures can result in the same symptom and the CRT c...

Page 264: ...esistor NOTE Do not disturb any ofthe circuitry on the Al2 Vertical Amp board such as the leads or any ofthe adjustments Ifyou disturb any ofthis circuitry then extensive vertical recalibration will be required The CRTTermination hybrid see Fig 3 33 is a laser trimmed resistor network tllat is mounted to the chassis near the A12 Vertical Amp board A Digital Multimeter DMM can effectively check thi...

Page 265: ...s in the measurement ofall resistances 10 With one lead of the DMM still on pin 4 of J80 touch the other lead of the DMM to pin 5 of J80 11 Check that the resistance measured is 1 00 Mn 3 12 Move the lead on pin 5 to pin 3 of J80 13 Check that the resistance measured is 1 00 Mn 3 NOTE The two resistances values measured in steps 11 and 13 should be within 0 5 ofeach other Figure 3 33 CRT Terminati...

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Page 267: ... Supplies Test Fixture Refer to Table 2 1 for a complete description of the equipment required Power supply problems show up when the front panel ON STANDBY switch is pressed ON If the green light beside the ON label fails to light then check the following 1 That the PRINCIPAL POWER SWITCH located on the back panel is in the ON position 2 That the line cord is connected to a functional power sourc...

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Page 269: ...ower cord from the instrument 16 HK and line voltages are present if the power cord is attached Locate the suspect fuse and check that fuse for continuity and proper rating Ifa fuse is open then replace that fuse a new one of the proper rating Isolate the malfunction that is causing the fuse to blow and repair this area 0 CAUTION CAUTION e e i rs co 0 0 0 0 F99 Principal Une Fu _ Figure 3 35 Rear ...

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Page 271: ... Locic Time Board Base Board r A Ext BExt AS A16 AB Memory A9 Ex on Front Regulator Panel Board Buttons Assembly A10 and Front Touch A7 Panel Panel Touch Panel Interface Board Board A11 Main Processor A17 Board Right Front Panel Power Board Assemblies GPIB RS232 cAUBRATOR Agure 4 1 11 302A System Block Diagram 4 2 Theory of Operation 11302A Service Reference ...

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Page 273: ...the output for display on the CRT The A13 Scope Logic board contains the logic that selects which input is displayed at a given time Input signals to the A12 Vertical Amp board come from the following locations within the instrument Vertical trace infonnation comes from the plug in amplifiers through the Al Plug In Interface board Vertical readout information comes from the All Main Processor boar...

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Page 275: ...s board contains a temperature controlled high stability oscillator and its associated circuitry The Al6 Memory Expansion board contains NV RAM for the STORE RECALL of mainframe settings A battery maintains the NV RAM when the power is off The instrument could function with a bad or dead battery but the stored settings would be lost at power down The A17 Character Control board consists of a front...

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Page 277: ... FISCHER SPECIAL MFG CO 111 I NlliSTRIAL RD COLD SPRING KY 41076 9749 75498 LTIW P INC 3005 S rl 154Tli TERRACE 3 BEAVERTCJ4 OR 97006 77542 RAYCJJAC CORP 601 RAYOVAC OR W OISCJ4 WI 53711 0960 PO BOX 4960 77900 ILLINOIS TOOL IIORl S ST CHARLES RD ELGIN IL 60120 SHAKEPROOF OIV 78189 ILLINOIS TOOL I RJ S It ST CHARLES ROAD ELGIN I L 60120 SfW EPROOF DIV 80009 TEKTRONIX IN C 14150 SW i ARL BRAlXi DR B...

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Page 279: ... FIG CABINET 1130ZA Service Reference ...

Page 280: ...Scans by Artek edia 2010 ...

Page 281: ... 57 255 0334 00 1 PLASTIC CI NNEL 12 75 X 0 175 X 0 15S NYLON 11897 122 37 2500 58 343 1302 00 5 C LAMP SAD l E 1 070 NYLON 06915 LWS 3NA 59 210 0457 00 1 NUT Pl ASSEM WA 6 32 X 0 312 STL CD PL 78189 511 061800 00 ATTACiiES GROUNO WIRE 60 348 0066 00 1 GRatiET PLASTIC BLJCK RIXJNO 0 625 10 28520 2872 61 343 1303 oo 2 CLAMP CABLE R D 0 437 NYLON 06915 N7B ATTACHING PARTS 62 210 0457 00 2 WT PL ASSE...

Page 282: ...Scans by Artek edia 2010 ...

Page 283: ... CRT TERMINATCR ASSEltllED 80000 307 2183 DO H2183 ATTICHIIIG PARTS 17 211 0711 DO 2 SCR ASSEM WSHR S 32 X 0 25 PNH STL TORX T15 01536 ORDERBYDESCR END ATTACHII PARTS 18 386 5627 DO 1 PI ATE DISTR CAP ALLMINLM 800 3 386 5627 QO 19 67Hl801 00 1 CIRCUIT BD ASSY MEMRY EXPANSION 80000 671 801 QO SEE Al6 E xCIW lE ITEM ATTICHING PARTS zo 2ll 0711 00 z SCR ASSEM ISHR S 32 X O Z5 Pt i STL TORX Tl5 01536 ...

Page 284: ...Scans by Artek edia 2010 ...

Page 285: ... FRONT CHASSIS REAR FIG 2 SeB ice Reference 11302A rv ...

Page 286: ...Scans by Artek edia 2010 ...

Page 287: ...SY PWR 3 0 75MM S Q 240V 6A 2 5M L S3109 86515000 OPTIOO AS ONLY 012 0208 00 8 CABLE INTCON lO OL 80009 012 0200 QO OPTION 1C ONLY 016 0029 00 PANEL BLANK PLl lHN IOJSING llK SERIES 80009 016 0829 QO 070 6274 00 IIANUAL TEOi INSTR ll401 11402 80009 070 6274 00 OPTION l RONLY 070 7174 00 1 KAHUAL TECH INTR0 1130W11302A 80009 070 7174 oo 070 7175 00 1 IIANUAL TEOi USERS ll301A 11302A 80009 07Q 7175 ...

Page 288: ...Scans by Artek edia 2010 ...

Page 289: ...FIG 3 CIROJIT OOAROS ll302A Service Reference ...

Page 290: ...P0JER SUlPLY FIG 4 lee Reference ll302A Serv ...

Page 291: ...1 ...

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