Tektronix DAS9100 Service Notes Download | Manualshive

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Summary of Contents for DAS9100

Page 1: ...I I TEK CUSTOMER PRODUCT SERVICING INFORfylATION iublished by Tektronix Service ldministrative Support Syrac Use I Albuquerque COMMITTED TO EXCELLENCE ...

Page 2: ...INEARITY GRATICULES TV MANUAL REVISIONS JUNE JULY TV MANUAL REVISIONS AUGUST 7L14 A48A5 U1755 REPLACEMENT 50M40 WRONG RESPONSE TO 11 CONFIGURE 11 COMMAND 401X OPTION 22 23 INSTALLATION REPLACEMENT CHANGES 463X HARD COPY MOTOR IMPROVEMENTS 468 NEW FAN FILTER REDUCES OPERATING TEMPERATURE 4 5 6 6 7 8 5 10 10 12 12 13 13 13 14 14 14 613 HIGH VOLTAGE MODIFICATION 50474 670 A 671A 672 COLOR TEMPERATURE...

Page 3: ...8 POWER SUPPLY INTERCONECT CABLE MODIFI CATION 20 4110 4112A 4113A 4114A FLEXIBLE DISK DRIVES TWO WIRE STRAPS 22 4110 4112 4113 4114 4112 4113A 4114A 4116A PROCESSOR BATTERY MOD 511340 24 4113A OPTION 9 045 0054 00 UPGRADE KIT 24 4114 4114A 4114A30 4116A 4116A30 DISPLAY CONTROLLER SHORT VECTOR MOD 25 4691 INSTALLATION AND SPIRAL HOSE DISPOSITION 25 4691 LOW INK LEVEL DETECTION ADJUSTMENT 2b ...

Page 4: ...pler to the inputs of the OD501 Connect the output of the DO501 without a terminator through a cable and BNC to Ez Hook adapter to the reset pin of the uP in the instrument under test 1 October 1983 laaue 31 Set the TGS0l to 1 ms and trigger the DDS0l The events delay count switches will now control the time between resets from zero to 99 999 seconds in 1 ms increments w2 Issue 13 16 IDD TOUCH UP ...

Page 5: ...where the photo diode is positioned directly over the r t power supply when plugged into the top of the Jl6 Also when using the r t power supply continuous operation or at least 1 2 to 1 hour wamup is best to minimize zero drift on the most sensitive ranges The Jl6 uses a mono polar DVM circuit which will still read 000 even when the zero is offset in a negative direction This has the appearance o...

Page 6: ... s be recalibrated about once a year The probes probably should be recalibrated every sfx months or so 110stly because calibration techniques are being improved with time rather than the likelihood of the probes themselves 3 October 1883 laaue 31 changing calibration Routine Jl6 and probe calibration is handled through Factory Service while special probe calibrations are done by Electrical Standar...

Page 7: ...FAILURE MOD REF M51508 As a result of the excessive number of line fuse failures caused by high transient voltages from the AC line a Metal Oxide Varistor 307 0415 00 has been added to the power supply in parallel with the spark gap A30A2E2010 To install the Varistor incapsulate it in shrink tubing 162 9031 00 lay it on top of A30A2C2010 and solder the Varistor s leads to the spark gap leads w2 Is...

Page 8: ...IRED me 4 Z CHANGE TO READ ITest Modulator I I I I I I I I I 0 1 dB Flatness within channel limits and phase noise less than 0 2 degrees rms Signal Generator to drive Test Modulator 100 MHz to 1000 MHz with typical sideband phase a noise or at least 70 dBc at 100 Hz rrom the oarrier as measured in a 1 Hz bandwidth Performance Check and Adjustment Tektronix Part No 067 0886 00 a dBc dB rererenoed t...

Page 9: ...ies system Slide Assembly 351 0085 00 Extender P N 407 1577 00 w2 Issue 13 20 6 October 1883 laaue 31 S3200 SAFETY FRONT PANEL LINE VOLTAGE M46259 Reference 2942 2943 2944 Rl340 Series 1140 Series and Rl330 Series instruments Line voltages are accessible These changes protect the service technician from exposure to dangerous line voltages Install mounting plate switch cover and appropriate hardwar...

Page 10: ...lculation Section III Schedules The Schedules Section contains several types of forms to assist in documenting and scheduling maintenance The Schedules Section should be reviewed soon after the system is installed Prior to finalization of a maintenance plan all sections should be compared This comparison should be done to check for conflicts in scheduling Different maintenance services should not ...

Page 11: ...to increase the drive current This will stabilize the signal and reduce cross talk effects On the Cycle Length Board 670 5383 05 change Rll3 R114 Rll5 Rll6 R132 Rl33 from 1 BK P N 315 0182 00 to a 270 ohm P N 315 0271 00 Change board P N to 670 5383 06 On the Clock Phase Board 670 5425 01 change R300 and R301 from a 1 5K ohm P N 315 0152 00 to a 270 ohm P N 315 0271 00 change board P N to 670 5425...

Page 12: ...Ur I I Ul9A ltl TlfRU i tt Tlfll U 7 Ut D IN l I 10 All I O CH lV I J 1 _ o E AND flAt 670 5425 02 PS through Pll Clock Phase l it n 10 9 14 AZ IC UO October 1883 laaue 31 itV llB JI oitO ll812 ao s o g O i Q5 5 Z V IS it I 11 111 OitO A 114 1 0 TIUGoG ER I 670 5417 02 Pl2 Progra11111ed Cycle ARTICLE CONTINUED ON THE NEXT PAGE ...

Page 13: ...n this output harmonics generated by the RF Mixer stage will be present In the case of Channel 69 the second Harmonic would be at 2 X Visual Carrier I F or 2 X 801 25 37 or 1676 5 MHz October 1883 la8 1e 31 If one assumes no harmonic attenuation out of RF OUT this frequency 1676 5 MHz would be at 25dbm when it was applied to the TDC2 and would mix with the first L O in the TDC2 Due to the input Ba...

Page 14: ... 690SR PAL 067 1034 00 690SR Opt 40 48 Hi Res 067 1034 00 6942 Hi Res 3 1 0305 02 trtr 650 670 NTSC 1 690SR PAL M 331 0359 02 650 670 690SR PAL October 1883 lae 1e 31 Some TSG12 and TSPll generators were compatible with NTSC Graticules due to the number of horizontal and vertical lines used 331 0305 02 and 331 0359 02 are 35rml slides that are meant to be projected upon the CRT face with a slide p...

Page 15: ... given above one can readily determine which linearity graticule is needed for the particular monitor and October 1883 laeue 31 generator that is available Convergence can be accomplished in a straight forward manner using the procedures outlined in the display device manuals Close attention to detail is reco11111ended with particular attention paid to the correct physical placement of the light s...

Page 16: ...d then back on will not clear the problem in most instances Investigation into this phenomenon has found a firmware abnormality caused by changes to the CMOS RAM mask This firmware abnormality will not be fixed The reason for this failure mode has been found to be incorrect initial ization and set up parameters written into the CMOS RAMs by virtue of the particular way the CMOS RAM initially power...

Page 17: ...nt will have increased reliability The part number for the new filter is 378 2042 02 14 October 1883 laaue 31 PLAN OF ACTIOH All old filters 378 2042 00 are to be purged Every 468 that comes in for service either under warranty or billable that has the old filter is to have the new filter installed at no cost to the customer ROTE When the new filter is installed it is possible to see a faint image...

Page 18: ... 690SR Instruction Manual 070 3821 00 690SR Opt 40 48 Instruction Manual 070 2870 00 15 October 1883 la81 1e 31 Several field failures have shown the following symptoms o Burst mode HY overload o Erratic or non existant phase lock of the high volt output circuit o No control through U445 If the High volt oscillator circuitry cannot be shut down by grounding pin 9 of U445 one of the first places to...

Page 19: ... in the RF Level indications Calculations for the 14 50 1 indicate the difference to be approximately 2 SdB between modulated and unmodulated signals as observed on the front panel RF Level indicator October 1883 laau 31 If the customer desires to measure RF Levels with and without modulation BACK P0RCH is the suggested 100de This also assumes that any modulating signals applied to the RF carrier ...

Page 20: ... 1980 PRINTER PATCH REF 1980 Terminal Driver manual 070 2922 00 When a printer is attached to one of the RS 232C ports on the 1980 with the intention of using it as the report generator for scheduled or out of limits data many parameters can be defined by the operator for the interface The Application Programs also predefine these parameters to a set of default values some with user definable alte...

Page 21: ...461 01 Corporate Mod 47940 18 A modification has been approved to improve the terminals ability to make good hard copies This will also reduce the time required to adjust for a good hard copy The modification consists of replacing the 4010 1 Hard Copy Tarsig Amplifier card p n 670 1744 XX with the 4012 Hard Copy Tarsig Amplifier card p n 670 2570 02 replacing the PlOO five hole harmonica cover p n...

Page 22: ...70 2656 00 070 2832 00 070 4169 00 070 4176 00 Corporate Modification No 45318 Corporate Modi fi cation N1 1nber 45318 fixes four reliability problems on the 19 October 1883 IHue 31 4027 27A Deflection board and corrects a secondary failure on the LVPS The new Deflection board is part number 672 0748 03 The following problems fixes are implemented with the 03 board 1 Problem Loss of horizontal syn...

Page 23: ...vice Manual p n 070 2618 00 618 Service Manual p n 070 2767 00 October 1983 laeue 31 The 4054 4114 power supply interconnect cable p n 175 2684 00 and the 4016 1 GMA101A GMA102A GMA125 and 618 power supply interconnect cable p n 175 2006 00 have both been changed to p n 175 2006 02 The Molex connectors used in the power supply interconnect cables p n 175 2684 00 and p n 175 2006 00 have had a hist...

Page 24: ...2 02 673 4909 Advanced File Manager ROMpack 4052 4054 RlO Level 1 Ul Ull 160 1337 00 160 1338 00 coco 1 CRC for both Character Symbol ROMpack 4052 4054 Rll Levell Ul Ull Ul3 Ul5 160 1313 00 160 1314 00 160 1315 00 160 1316 00 SAAB 6051 1 CRC for both 1 CRC for both Graphics Enhancement ROMpack R12 Level 1 0 Ul Ull Ul3 160 2039 00 160 2040 00 160 2041 00 37D2 6FDC 9882 GP18 Enhancement ROMpack 4052...

Page 25: ...cation may have changed See the tables in the 4100 Dl1 0 O DUG Dl3 0 0 DM Cl 0 oo n 0 0 T CO Tl 0 Cl Tl I oo AIOI I 11 DI Ja JI HL October 1983 laaue 31 Series F42 43 Disk Options Service Manual when strapping The wire jumpers that we install are different The wires are installed as shown in fig 1 and fig 2 The cables and straps will be covered in the F45 Disk Option Service Manual available Week ...

Page 26: ...tive Support 411OA 4112A 4113A 4114A FLEXIBLE DISK DRIVES TWO WIRE STRAPS CONT Cl DD Dl1 DSJllll Dl3 C Cl DM Cl Cl Cl n Cl Cl T Cl Cl Tl Cl O Tl ll a Cl 1111 1 DI JIOI a a 0 aJl iz Figure 2 Drive 1 23 October 1883 IHue 31 ...

Page 27: ...Rll 4 Insert CRll 152 0322 00 where Rll was removed Place CRll in the circuit so the anode is to the bat tery and the cathode is connected to the run just cut 5 Move R9 270 ohms to bridge the cut run Attaching one leg to the catho e of CRll and the second leg to the pad at the other end of the cut run This 270 ohm resistor will now be referred to as Rll 6 Insta11 the new battery to rep1ace the old...

Page 28: ... that disappear The 050 kit consists of instructions an IC and six inches of wire To modify the Display Controller wf th the above ymptoms perform the following procedure 1 Change U260 from a 74LS04 156 0385 02 to a 74S04 156 0323 02 25 October 1883 IHue 31 2 Li ft pin 3 of U240 and solder one end of a 411 wire to it Solder the other end of the wire to pin 11 of USS 3 Solder one end of a 211 pins ...

Page 29: ...that is now used with the 4691 requires that different detection levels be used for each color of ink The voltages are changed as follows 1 Magenta VRl is adjusted so that the voltage on RlO is 8Vdc 2 Cyan VR2 is adjusted so that the voltage on R16 is 3Vdc 3 Black VR3 is adjusted so that the voltage on R22 is 6Vdc October 1883 laaue 31 4 Yellow VR4 is adjusted so that the voltage on R28 is 4Vdc Al...

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