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1. 0 AOGZ NT 0 0 5 4 250 115 5803 R102 18 152076 C304 E 32 0 6092 42 I dJi rot 8072 E 3 5 T GOC o M 9101752 ih 012 R401 R129 10K ASEN 9 __ ME 21 e E 8013 HI SEIS 1110 2d 12018013 9 lg Weg quee ve o REM S 957 AST ny DIELL Prose 2013 12 dOEE 98 18 1010 1960 SERVICE MANUAL 2 r R ETB S 1 P601 R639 S 2 2K C611 104 p OE f 9606 47 m E R605 47 5 x 9604 47 ED da JE R603 Re02 4 E R601 _ a m o c R532 220 R637 220 R636 220 R633 220 R991 0 5 1W V901A d id 1 gt gt mils 2g SES se TA E 2 3 i38 C904 8 3 4 7u 100V C90 1 1 40 4007 1 84V 30 12V Dor gt BCL GND 20 FIT R62 RBB asci213 PBA t PERPE R636 220 R635 220 C d 70 v 8 16 4 LJ 47 eSAB44C R509 560 4 2SC 40 gt Ou Q 2 gt 25 o H507 e2. eH aes I 8 i aL i Em e mmis ee ji d 35 spo o OFFI LWD amp 2 5 5 KOC Sans P gr 8 18 AGE NOLF NE WE n o XN 152076 C304 001 nozc VER 5 _ _ alk 4 alk AST 0001 23 2 BEB 90 mo m T Zera 0192 A gta ah 4002 SCOT v ee Te oA mee t 8 4 0 a 55 la ss rh eto cj 243 al E ae RR g is M x n ax d Dae ef aa i gt 2 L 2 i 3 ay me mee mamme g UR 1 090 9005 940251 X ogs 700 500 205 10 3027 M k 0 ET SU occa od dus TRE 4709 P 400Y 4709P 400v 2 7 0 Sw i SE nQtv LEB 002 n0 uo SEB 1 I E gs alice cod BER m l p sre i FF AXE 5090 9004 9 v 00d Soon 810 007 8801 TOO 4700P 400Y 7602 Feat
3. a fuse is broken during adjustment remember to replace it with the exact same type of fuse 1960 SERVICE MANUAL 5 ALIGNMENT PROCEDURES A SYNCRONIZATION ADJUSTMENT Input Signal Cross Hatch Pattern Connect the DC meter to TP2 and adjust VR128 to obtain the F V output for 5 7V Adjust H Hold VR136 until the cross hatch pattern is stable B PICTURE SIZE ADJUSTMENT Input Signal Cross H atch Pattern Horiz Width 480 mode Adjust L402 so that the horiz width of the picture is 240mm 3mm Vert Height 350 mode Adjust VR111 so that the vert height of the picture is 180mm 3mm 400 mode Adjust VR 108 so that the vert height of the picture is 180mm 3mm 480 mode Adjust VR110 so that the vert height of the picture is 180mm 3mm 768 mode Adjust VR109 so that the vert height of the picture is 180mm 3mm CGA mode Adjust VR113 so that the vert height of the picture 15 180mm 3mm EGA mode Adjust VR115 so that the vert height of the picture is 180mm 3nm 1960 SERVICE MANUAL C WHITE BALANCE ADJUSTMENT Input Signal Full White Video VGA mode Drive VRs 502 VR532 VR562 Bias VRs VR910 VR940 VR970 la Set Brightness amp Contrast to minimum b First adjust VR94O to its center position Then adjust VR970 so that Y 0 329 and adjust VR910 so that X 0 313 2 Set Brightness amp Contrast to maximum b Adjust VR532 for 45Vp p of the G gun input at the cathode 3a
4. e b ml e d 100 3 122 SS 9 Os MA o lt CLAMP BCL GND zag 3
5. 1 Observe all cautions and safety related notes located inside the monitor cabinet and on the monitor chassis 2 Operation of the monitor outside its cabinet or with the cover removed involves the risk of shock from the monitor power supply Repair work on the monitor should not be attempted by anyone who 1 not thoroughly familiar with all necessary safety precautions and procedures for working on high voltage equipment 3 Do not install remove or handle the picture tube any manner unless shatter proof goggles are worn People not so equipped should be kept at a distance during handling of the picture tube Keep the picture tube away from the body during handling 4 The picture tube is constructed to limit X radiation to 0 5mR HR at 300 micro amperes anode current For continued protection use the recommended replacement tube only and adjust the voltages so that the designated maximum rating at the anode will not be exceeded PRODUCT SAFETY NOTICE Many electrical and mechanical parts 1n this chassis have been specially inspected for safety and the protection afforded by them cannot necessarily be obtained by using replacement components ratedfor higher voltage wattage etc Before replacing any of these components read the Spare Parts List at the end of this manual carefully The use of substitute replacement parts which do not have the same safety characteristics as those specified in the Spare Parts List may result in shock f
6. 1960 SUPER VGA COLOR MONITOR JANUARY 1992 PN 400419 01 1960 SERVICE MANUAL TABLE OF CONTENTS SPECIFICATIONS xU d uu dU d uu ud ul uou uu uu Nube up pu ua 1 L SAFETY PRECAUTIONS AND NOTICES em 4 ALIGNMENT AND 6 ASSEMBLY AND 15 85 13 pere DACRAM eT 1 4 TROUBLESHOOTING CHAR Perros eon dbi 15 Cm 1 8 SCHEMATICS E notat xb ap aH xu au nu cal al ml 19 SPECIFICATIONS Application Power Input Video Signals Sync Signals Sync Frequencies Signal Connectors Display Tube Display Area Display Colors Display Characters Maximum Resolution Misconvergence User Controls 1960 SERVICE MANUAL A typical data display device for graphics amp text PC applications 80 watts nominal AC rated voltage Refer to R C label Analog 0 7 Vp p RGB positive Separate Sync Horiz Vert TTL positive or negative Horizontal 15 75 to 38 KHz Vertical 50 87 Hz 15 pin 9 pin Analog D shell connectors 14 90 degrees 575R 29 10 neck 0 28 0 29mm dot pitch in line gun non glare screen Type number M34KBV80X11 M34ECL12X36 240 x 180mm H x V Infinite 80
7. NO VERTICAL SCAN RASTER IS ONE HORIZ LINE Check voltage of pin 10 at 1301 T normally about 25V Yes Check Replace 1301 Check 1301 Normal Abnormal Check Replace 1301 Replace 1301 Still no vert scan Check Replace deflection yoke 4 OUT HORIZ SYNC Horiz sync present at pin 11 of 1401 Yes No Saw tooth pulse pres Sync pulse present ent at pin 16 of I401 at pin 2 of 1101 Yes No Check Replace Q402 Check the signal cable horiz sync input Check Replace 1401 5 OUT OF VERTICAL SYNC at pin 3 of I301 Check Replace Vert Osc connected to pins 1 amp 2 6 VIDEO ABNORMAL R G B Video Amp abnormal Check the DC voltage at the Vertical sync present 1960 SERVICE MANUAL Check the signal cable vertical sync input CRT DRIVER R G B normally about 1 6V Yes Check 2902 2932 Q962 collector voltage normally about 80V Yes Check the CRT R G B cathode voltage normally about 80V Yes Video signal present at the pin of the CRT R G B cathode No Defective 1501 LM 1203 No Check I501 R G B O P voltage 901 0931 0961 No Defective R903 R904 R933 934 R963 R964 Defective cut off circuit 1960 SERVICE MANUAL Commodore International Spare Parts List 1960 PCB Assembly Commodore part numbers are provided for reference only and do not indicate the availability of spare parts from Commodore Industry standard parts Resi
8. Set Brightness to center detent amp Contrast to 10 Fl b First adjust 562 so that Y 0 329 then adjust VR502 so that X 0 313 4a Set Brightness to maximum amp the G2 voltage just before the raster appears b Check the white balance in the VGA mode 5 Set Brightness just before the raster disappears b Repeat steps 2b to 5b until the best white balance 1s obtained D FOCUS ADJUSTMENT Input Signal Dot Test Pattern l Set Brightness amp Contrast for a normal display 2 Adjust the focus control at the high voltage resistor block to obtain the best focus over the entire display area 1960 SERVICE MANUAL E STATIC CONVERGENCE ADJUSTMENT NB The monitor should be operated for at least 30 mins before any con vergence adjustments are made Input Signal Cross Hatch Pattern 1 Set Brightness amp Contrast so that a well defined pattern is obtained 2 Ensure that the convergence magnets on the CRT are in the correct position Magnet Ring Stopper CRT Neck 6 Convergence Magnets deflection Yoke 4 Pole Convergence M agnets Purity Magnets 3 Turn the 2 tabs of the 4 pole magnets independently to adjust their angles Align the red amp blue vert lines at the center of the screen 4 Turn the 2 tabs of the 4 pole magnets simultaneously to keep their angles constant Align the red amp blue horiz lines at the center of the screen 5 Turn the 2 tabs of the 6 pole magnets independently to s
9. amps AC Any value exceeding this limit constitutes a potential shock hazard and must be corrected immediately To good earth ground To exposed metallic um ir do 1500 ohm 10 watt 1960 SERVICE MANUAL ALIGNMENT AND ADJUSTMENT 1 ADJUSTMENT CONDITIONS Power Supply AC 220V 60 Hz Warm up Time The monitor should be powered on for at least 15 minutes before any adjustments are made except for convergence when 30 minutes are required Signal Input 1 Video RGB Analog 0 7 Vp p positive RGB TTL positive 2 Sync Horiz and Vert separated positive or negative 3 Scanning Frequencies FH 15 75 to 38KHz 15 75 to 45 KHz FV 50 97 Hz 4 All adjustments should be made using a signal of FH 31 468 KHz unless otherwise defined 2 Parameter list of signal timings generated 1024x768 Interlaced Mode 35 52 KHz Horiz Sync Polarity POS Vert Sync Polarity POS Total PELs per Line 1264 Active PELs per Line 1024 Line Blanking Time PELs 240 Line Sync Pulse Width PELs 1 6 Line Front Porch Width PEL s 8 Line Back Porch Width PELs 56 Total Lines per Frame 817 Active Lines per Frame 768 Fields per Frame 2 Field Blanking Time E O Lines 25 24 Field Sync Pulse Width E O Lines 4 Field Front Porch Width E Lines 0 5 0 0 Field Back Porch Width E O Lines 20 5 20 PEL Time ns 22 27 Total Line Time us 28 15 Total Frame Time ms 23 00 Frame Rate Hz 43 48 1960 SERVICE MANUAL Vertical L
10. char x 60 rows on a 10x10 matrix 1024 dots x 768 lines Center Area lt 0 3mm Corner Area lt 0 4mm Power ON OFF Brightness Contrast Voltage Selector Horiz Phase Vert Size ADD Width Mono Color Select 1960 SERVICE MANUAL PAC 3 E COMMODORE 1960 SUPER COLOR MONITOR Service Controls Environmental Conditions Dimensions Gross Weight SIGNAL CABLE PIN CONNECTIONS PWB 1011 R BKG G BKG R Bias G Bias B Bias PWB 1015 G1 Voltage Adjust Pincushion Horiz Width Horiz Hold 1 Horiz Hold 2 Horiz Phase 1 Horiz Phase 2 Vert Size Vert Center Vert Linearity Vert Hold Screen 1960 SERVICE MANUAL Operation 10 to 35 degrees C ambient Storage 0 to 65 degrees C ambient Humidity 8 to 80 non condensing up to 7000 ft above sea level Altitude 388mm H x 370mm W x 420mm D 14 kgs Analog Pin Signal 1 Red Signal 2 Green Signal 3 Blue Signal 4 Monitor Sense Ground to Pin 10 3 Ground 6 Red Return 7 Green Return TIL Pin signal Ground 2 Red Prime 3 Red Signal 4 Green Signal 5 Blue Signal Pin 10 12 13 14 15 Signal Blue Return No Pin Digital Ground Jumper to Pin 10 No Pin Horizontal Sync Vertical Sync Jumper to Pin 10 Signal Green Prime Blue Prime H Sync V Sync 1960 SERVICE MANUAL SAFETY PRECAUTIONS AND NOTICES SAFETY PRECAUTIONS
11. ines 350 400 480 600 CGA EGA Horizontal Freq 31 468 KHz 35 52 KHz Sync Polarity POS NEG NEC POS POS POS A us 31 78 31 78 31 78 28 44 63 5 45 76 us 3 81 3 81 3 81 2 00 4 50 5 60 us 1 91 1 91 1 91 3 66 7 80 1 00 D us 25 42 25 42 25 42 22 22 44 50 39 37 0 64 0 64 0 64 0 67 6 70 0 20 Vertical Freq 60 Hz 70 Hz 60 Hz 56 25 Hz 60 Hz 60 Hz Sync Polarity NEG POS NEG POS POS NEG Oms 14 27 14 27 16 68 17 78 16 637 16 75 Pms 0 06 0 06 0 06 0 06 0 19 0 60 Q ms 1 91 1 11 1 05 0 63 2 30 0 08 Rms 11 12 12 71 15 25 17 07 12 576 16 02 Sms 1 18 0 38 0 32 0 03 1 60 0 05 HORIZONTAL m VIDEO o SYNC VERTICAL VIDEO Ld 4 R s SYNC 1960 SERVICE MANUAL 3 ADJUSTMENT EQUIPMENT a Volt ohm A meter Sanwa FD 750C or equivalent b 30KV high voltage probe HP341114A c Oscilloscope TEK2235 or equivalent d White balance adjuster Minolta Color Analyzer 1 Signal generator IBM PC with VGA card or equivalent f Screwdriver 4 SWITCHING POWER SUPPLY Regulator Adjustment PWB1001 The regulated B control has been preset in the factory and needs adjustment However if any repairs are made on the equipment the following readjustment procedures are recommended a Allow the monitor to warm up for about 5 minutes b Apply the VGA 31 468 KHz signal to the monitor c Connect a DC meter to on the main and adjust VR831 for 80V DC d If
12. ire X radiation or other hazards 1960 SERVICE MANUAL SERVICE NOTES 1 When replacing parts or circuit boards clamp the lead wires around the terminals before soldering ii 2 When replacing a high wattage resistor gt 0 5 W metal oxide film resistor in the circuit board keep the resistor about 1 cm 1 2 away from the circuit board 3 Keep wires away from high voltage or high temperature components 4 Keep wires in their original positions so as to minimize inteference SAFETY TEST Before returning a serviced monitor to the customer a thorough safety test must be performed to verify that the monitor 1 safe to operate without danger of shock Always perform an AC current leakage check on the exposed metallic parts such as screw heads as follows 1 Plug the AC line cord directly into a rated AC Do not use a Line Isolation Transformer during this check 2 Use an AC voltmeter having at least 5000 ohms per volt sensitivity as follows Connect a 1500 ohms 10 watt resistor paralleled by a 0 15mfd AC type capacitor between a known good earth ground such as a water pipe or conduit etc and the exposed metallic part simultaneously Measure the AC voltage across the combination of 1500 ohms resistor and 0 15mfd capacitor 3 Reverse the AC plug at the AC outlet and repeat the steps for AC voltage measurements for each exposed metallic part 4 Voltage measured must not exceed 0 3 volts RMS This corresponds to 0 2 milli
13. must never be shut off or disconnected while near the monitor as this would introduce a strong field instead of cancelling the effect of the stray fields ASSEMBLY AND DISASSEMBLY 1960 SERVICE MANUAL 7 CM1438M THE BLOCK DIAGRAM COLOR MONITOR 1445 Tu ANALOG R 1 R VIDEO R CASCODE STAGE R BUFFER STAGE NN G G PRE AMP CASCODE STAGE G1 CONVERTER B CASCODE STAGE B BUFFER STAGE FOCUS THY R DV G DiV B DIV R BLK G BLK B BLK V VERT SYNC VERT OSC amp STAGE VERT MODE DETECTOR F CS gm Slee HORI 0 P H V GEN STAGE HORI OSC HORI DRIVE STAGE FBT HORI SYNC PROCESSOR 180V 80V AC P 25V 5 5 15V REGULATION 6 3V LITE ON TECHNOLOGY CO a 5 iit 4 TVANVA AOIAWAS 0961 1960 SERVICE MANUAL TROUBLE SHOOTING CHART 1 NO RASTER Measure voltage of at 4 on PWB MAIN Normal 84V 31 5 KHz High 90V or more Check voltage of Short circuit Yes Check DC line cathode heater Grid 1 Grid 2 etc at load Q808 No Q403 Check 300V on C805 No Check D801 D802 positive end PWB I P D803 D804 F801 Yes Check 1801 1802 R805 R813 Q801 D816 D820 2 AUTOMATIC BRIGHTNESS LIMITER NOT FUNCTIONING Check Resistor R431 Normal Abnormal Check the voltage Check R431 of 1501 pin 13 Ab x Check Q591 Q592 1960 SERVICE MANUAL 3
14. stors Capacitors Connectors should be secured tocally Part number information may vary according to country some parts may not be available in all countries 602319 001 602319 002 602319 003 602319 004 602319 005 602319 006 602319 007 602319 008 602319 009 602319 010 602319 011 602319 012 602319 015 602319 016 602319 017 602319 018 602319 019 602319 020 COIL RES CF RES MOF RES MOF DIODE SW DIODE SW DIODE SW DIODE SW DIODE SW DIODE ZENER DIODE ZENER DIODE ZENER DIODE ZENER TR NPN TR NPN TR NPN TR NPN TR NPN TR PNP TR PNP 901 1931 1961 R905 R642 R813 D814 D801 D804 D816 D806 D819 D111 D402 D811 D101 0403 0802 0806 0106 0401 0593 Cabinet Parts 602319 044 6 602319 046 FRONT DOOR PANEL 602319 041 FRONT BEZEL 602319 042 BACK COVER 602319 043 NAMEPLATE 602319 021 602319 022 602319 023 602319 024 602319 025 602319 026 602319 027 602319 028 602319 029 602319 030 602319 031 602319 032 602319 035 602319 036 602319 037 602319 038 602319 039 602319 040 C FUSE 4A 250V PEDESTAL 02319 045 CRT Q801 Q808 1105 1501 1104 0594 804 1802 1803 1106 1107 1805 1301 1401 1801 1101 1103 1102 1601 1602 F801 1960 SERVICE MANUAL 1 E ES as f SES ps E IE HHF 7 82
15. uperimpose the red blue vert line on the green one 6 Turn the 2 tabs of the 6 pole magnets simultaneously to superimpose the red blue horiz line on the green one 7 Repeat steps 3 4 5 amp 6 until the best convergence is obtained NB The 4 pole magnets amp the 6 pole magnets interact making dot movements complex BLU RED RED BLU GRN BLU RED BLU RED GRN 4 pole magnets movement 6 pole magnets movement 1960 SERVICE MANUAL F DEGAUSSING Degaussing is required when poor color purity appears on the screen This monitor uses an automatic degaussing circuit that is activated at power ON Automatic degaussing will be fully functional within 15 minutes The degaussing effect is confined to the picture tube since the coils are mounted at the back of the tube Should any part of the chassis or cabinet become magnetized it will be necessary to degauss the affected area with a manual degaussing coil Manual Degaussing a Apply line voltage to the degaussing coil and move it in a rotary motion over the front sides and top of the monitor The coil should be kept away from the rear of the monitor to avoid damaging the magnetic neck components b Slowly rotate and back the coil away from the monitor to about 6 feet beyond the point where no effect on the CRT will be noticeable For proper degaussing it is essential that the field be gradually reduced by moving the coil slowly away from the monitor The degaussing coil
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