Tatung VM9K9DA Service Manual Download | Manualshive

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IC801 TDA4866

FEEDB

PROTECTION

OUTB

OUTA

Vfb

GND

Vp

GUARD

INB

INA

6

9

4

2

1

8

3

5

7

AMPLIFIER B

AMPLIFIER A

INPUT STAGE

GENERATOR

FLYBACK

CIRCUIT

GUARD

IC901 3842

VCC

GND

O/P

Ct/Rt

Is

COMP.

F.B

Vref

8

2

1

3

4

6

5

7

U.V.L.O.

36V

1V

1/2 Vref

OSCILLATOR

LATCH

PWM

S

R

COMP

C.S.

1/3

AMP

ERR

LOGLC

RESET

SET/

Vref

5V

BIAS

INTERNAL

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Summary of Contents for VM9K9DA

Page 1: ...SERVICE MANUAL COLOR MONITOR VM9K9DA ...

Page 2: ...ON ONLY EVERY REASONABLE EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL WE CANNOT GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS LIABILITY FOR CHANGES ERRORS OR OMISSIONS MANUFACTURE DATE AUGUST 2001 ...

Page 3: ...ION 11 14 6 TROUBLE SHOOTING CHART 15 6 1 NO RASTER CRT RELATIVE CIRCUIT PROBLEMS 15 6 2 ABNORMAL DISPLAY 17 6 3 NO BLANKING 18 6 4 HOR OSC DEF HV CIRCUIT FAULT 18 6 5 ABNORMAL HORIZONTAL DEFLECTION 19 6 6 ABNORMAL VERTICAL SCANNING 20 6 7 SIDE PIN CUSHION DISTORTION 20 6 8 POOR FOCUS 21 6 9 NO SOUND FOR AUDIO MODEL ONLY 21 6 10 POWER SUPPLY TROUBLE SHOOTING CHART 22 7 MECHANICAL OF CABINET FRONT ...

Page 4: ... Positive Vert Sync TTL Level TTL Level TTL Level TTL Level Positive Negative Negative Positive Horizontal 640 H 720 H 640 H 800 H Vertical 480 V 400 V 480 V 600 V Fh kHz 31 47 31 47 43 269 53 67 Fv Hz 60 70 85 85 Mode 5 Mode 6 Mode 7 Mode 8 RGB Analog RGB Analog RGB Analog RGB Analog Horiz Sync TTL Level TTL Level TTL Level TTL Level Positive Positive Positive Positive Vert Sync TTL Level TTL Lev...

Page 5: ...o 85 Relative Non Condensing 14 Weight 20 0 Kgs Net 23 6Kgs Gross for 9Klr 15 Dimensions Monitor Carton 570 W 545 H 655 D mm Monitor 436 W 455 H 446 D mm for 9Klr 16 External Connection 15 Pin D type Connector AC Power Cord 17 Speaker for 9KlrA only Rate power 5W per channel Impedance 16Ω 18 Regulations UL CSA FDA FCC TÜV GS CE MPR II TCO 99 ...

Page 6: ...afety test must be performed to verify that the display is safe to operate without danger or shock Always perform an AC leakage current check on the exposed metallic parts of the cabinet such as screw heads Test method for current leakage is described as follow a Plug the AC line cord directly into rated AC outlet do not use a line isolation transformer during this check b Use an AC voltmeter havi...

Page 7: ...ply It is important to maintain specified values of all components in the horizontal and high voltage circuits and anywhere else in the monitor that could cause a rise in high voltage or operating supply voltages No changes should be made to the original design of the monitor Components shown in the shaded areas on the schematic should be replaced with exact factory replacement parts The use of un...

Page 8: ...s on the connector to ensure firm grounding The connector information is as follow 15 Pin Color Display Signal Cable PIN NO DESCRIPTION PIN NO DESCRIPTION 1 RED 9 NC 2 GREEN 10 GND 3 BLUE 11 SYNC GND 4 GND 12 SDA 5 GND 13 HORIZ SYNC 6 GND R 14 VERT SYNC VCLK 7 GND G 15 SCL 8 GND B 3 Apply power to the display by turning the power switch to the ON position and allow about thirty seconds for display...

Page 9: ... Connect a DC Volt meter between TP901 or D922 cathode and ground then adjust VR901 to be 15VDC C Connect a DC Volt meter between TP902 or D925 cathode and ground then adjust VR902 to be 49VDC B D Connect a DC Volt meter between TP701 G1 and ground Brightness set to max Then adjust VR702 to be 35 VDC E Connect a 22kΩ resistor in parallel with R419 to increase the HV the hold down circuit will oper...

Page 10: ...V SIZE R BIAS ZOOM G BIAS TOP COMER R BIAS BOTTOM COMER 9300 COLOR TEMPERATURE PINCUSHION 6500 COLOR TEMPERATURE TRAPEZOID DEGAUSS PIN BALANCE OSD EXIT PARALLELOGRAM RETURN ROTATION Vs LINEAR Vs SUB V SIZE Vc LINEAR Vc SUB V CENTER B I ON OFF Audio MENU Key to Quit the OSD window Mean while the new setting data will be saved in the memory BC TC BI BC TC BI ...

Page 11: ... B Gain R Gain to make color temperature x 283 10 y 297 10 C Recheck item A B to make sure both of them in spec Finally select OSD function to the 9300 K function then press the MENU Key To make the setting data saved in the memory D The adjustment of 6500 K white Balance May follow step A C with the x 313 10 y 329 10 E Full white luminance a Set mode 2 640 X 480 Fh 31 5KHz full white pattern b Im...

Page 12: ...ged by varying the two tabs together keeping the angle between them constant 5 CIRCUIT DESCRIPTION 5 1 MICRO CONTROLLER CIRCUIT MICRO Controller The IC101 contains a 6502 8 bit CPU core 256 bytes of RAM 16K bytes of ROM 14 channel 8 bit PWM D A converters 2 channel A D converters for key detection one 8 bit pre loadable base timer internal H sync and V sync signals processor providing mode detecti...

Page 13: ...d an extensive set of geometry control facilities Further the IC generates the drive waveforms for DC coupled vertical boosters to the TDA 4866 ref Page 28 Horizontal Oscillator The oscillator is of the relaxation type and requires a capacitor of 10nF C403 at pin 29 The maximum oscillator frequency is determined by a resistor R403 form pin 28 to ground A resistor R402 from pin27 to pin28 defines t...

Page 14: ...ion Diode Q416 B MUTE D414 D417 D419 Buffer Diode for IC403 D421 D423 Detected for Q406 Q401 B Mute Control Q402 Horizontal Driver Q403 Horizontal Out Put Q404 Q406 A differential Amp for Drive Q405 Q405 Darlington Transistor for H Size Control Q407 Horizontal Linearity Correction Control Q410 Q412 Q417 Horizontal S Correction Control Q418 Q420 Horizontal S Correction Control ZD601 ZD602 VF Voltag...

Page 15: ...put Voltage Supply D921 D923 Rectifier for Output Voltage Supply D924 Clip Diode for Trigger CKT D925 Rectifier for B Supply D926 D927 Raster Position Control D939 Clip Diode for Snuffer Pulse ZD901 Protection Diode ZD903 Protection Diode Q901 MOS FET for Switching Power Control Q908 Q916 To Turn 6 3V Supply Off when the Off Mode is Required Q909 Q910 To Turn 14 5V Supply Off when the Off or Suspe...

Page 16: ...TAGE CHECK THE VOLTAGE OF CRT HEATER ABOUT 6 3V CHECK VOLTAGE OF THE CRT CHECK BRIGHTNESS CIRCUIT OK CHECK POWER SAVING CIRCUIT ABNORMAL DISPLAY H SYNC V SYNC SIGNAL REFER ITEM 8 2 CATHODE ABOUT 60V TO 70V CHECK SCREEN VOLTAGE ABOUT 400V TO 700V OF CRT ABOUT 25 5 26 5KV LESS THAN 300V CHECK FBT CHECK MAIN PCB POWER SUPPLY 60 5V 14 5V 80V CHECK FAILSAFE CKT IC401 PIN 2 RELATIVE CKT Q703 Q706 Q707 R...

Page 17: ...NTERFACE CARD CONTRAST SET MAX OR IC401 PIN 16 OUTPUT CHECK IC801 PIN 13 ABOUT 4V PIN 6 9 22 ABOUT 12V CHECK IC801 PIN 15 CLAMP PULSE PIN 18 20 23 ABOUT 4Vpp CHECK THE IC105 RELATIVE CIRCUIT PIN 16 BLANK PULSE PIN 26 27 28 ABOUT 4V OR CHECK Q801 AND RELATIVE CKT 3 ABNORMAL DDC PLUG PLAY OK NG CHECK IC101 PIN 5 VOLTAGE ABOUT 5V CHECK SIGNAL CABLE OR H802 PIN 3 4 DATA OUTPUT CHECK Q102 GOOD OR FAIL ...

Page 18: ...0Vpp CHECK THE VOLTAGE OF FBT SCREEN CHECK THE RELATIVE CIRCUIT CHECK THE 12V PIN OF SMPS ON MAIN PCB RELATIVE CIRCUIT OF P802 CONNECTOR ABOUT 400V TO 700V EXCEED 700V OF IC801 CHECK FBT CRT RELATIVE CIRCUIT OR REFER ITEM 7 1 VIDEO PCB ABOUT 80V CHECK THE 80V RELATIVE CIRCUIT CHECK VIDEO IC801 VCC ABOUT 12V OF IC801 PIN 18 20 23 ABOUT 3Vpp CHECKTHE VQ802 Q807 16 19 22 Check IC803 Pin1 2 3 ABOUT 40...

Page 19: ... OSC DEF HV CIRCUIT FAULT 1 NO RASTER DISCONNECT WITH SIGNAL CABLE NG OK OK OK NG NG NG CHECK THE COLLECTOR VOLTAGE CHECK THE COLLECTOR VOLTAGE RELATIVE CIRCUIT RELATIVE CIRCUIT CHECK IC401 PIN 26 31 CHECK Q402 T401 CHECK T401 T402 Q402 Q403 OF Q402 ABOUT 40Vpp OF Q403 ABOUT 1100Vpp AT FH 31KHz D408 C418 C419 H DY CHECK IC401 PIN 10 ABOUT 11 5 VDC CHECK IC401 PIN 8 WAVE FORM ABOUT 10Vpp CHECK IC40...

Page 20: ...ECK THE HV OF CHECK FBT B VOLTAGE Q911 Q912 Q914 Q915 IC401 PIN 4 5 6 VR 902 ABOUT 60 5V AT FH 31KHz CRT ABOUT 26KV 2 ABNORMAL HORIZONTAL RASTER CENTER P403 AND JUMPER CHECK T903 D926 D927 R964 R968 3 ABNORMAL HORIZONTAL VIDEO CENTER CHECK IC101 PIN 9 10 IC401 PIN 18 19 4 ABNORMAL HORIZONTAL LINEARITY CHECK L401 Q407 R447 C448 AND IC101 PIN 20 21 22 23 CS SWITCHER IC403 Q410 Q411 Q420 49V ...

Page 21: ...RCUIT RELATIVE CIRCUIT NG CHECK THE IC601 PIN 7 ABOUT 40V CHECK IC601 PIN 6 OUTPUT ABOUT 38Vpp CHECK ZD601 ZD602 R626 SMPS CHECK IC401 PIN 22 23 24 CHECK IC401 PIN 12 13 2 VERTICAL CENTER NG READJUST V CENTER CHECK IC101 PIN 9 10 IC401 PIN 18 19 6 7 SIDE PIN CUSHION DISTORTION NG READJUST SIDEPIN CHECK IC401 Q404 Q405 Q406 RELATIVE CKT ...

Page 22: ...US LEAD WIRE CRT SOCKET CRT 6 9 NO SOUND FOR AUDIO MODEL ONLY OK OK OK OK NG ENSURE THE SOUND SOURCE IS POWER ON ENSURE THE SOURCE CABLE CONNECTION CHECK POWER CHECK IC501 IC501 FAILURE SPEAKER FAILURE OK SUPPLY CIRCUIT ADJUST VOLUME CONTROL NG CHECK IC501 PIN 14 ABOUT 14V ...

Page 23: ...NG NG OK OK OK NG OK NG YES NO CHECK BRIDGE RECTIFIED CIRCUIT 6 3V CIRCUIT CHECK START C K T CHECK POWER SAVING C K T OFF MODE CHECK IC401 CHECK D919 CHECK Q911 Q911 FAILURE CHECK Q901 CHECK IC901 CHECK AC LINE VOLT 120V OR 220V CHECK F901 SW901 CHECK LINE RECTIFIED SMOOTHED VOLT CHECK Q901 IC901 FAILURE CHECK T901 O P MAKE SURE THAT THE VARIABLE OK D909 Q904 R922 R925 CHECK Q912 Q914 Q915 PIN 4 5...

Page 24: ...23 7 MECHANICAL OF CABINET FRONT DIS ASSEMBLY ...

Page 25: ...0A 581 26 704 FOR CARTON PALLET 40A 581 624 5A TCO 99 LABEL 40A2035 615 5A ID LABEL 41A 68 508 A Card 41A 68 615 1B Warranty Statement 41A 68 615 4B TCO 99 CARD 41A 563 615 3A MANUAL 44A0288 3N SLIP SHEET 44A3221 1 EPS 44A3221 2 EPS 44A3221 615 3A CARTON 44A6904 1 EPE 45A 76 28 RN 14 15 17 Manual PE BAG 45A 76 34 RN PE BAG 45A 76 502 RN PE BAG 45A 77 500 BARCODE RIBBON 45A 77 501 BARCODE RIBBON 50...

Page 26: ...C D1A1140 7 128 SCREW 4X7 FOR AC M1A1140 6 128 SCREW 705A769T C56 01 IC601 ASS Y 705A769T C87 01 AC 1 SOCKET CN901 705A790T C57 01 Q403 Q405 Q911 D408 ASS 705A988S C93 01 D921 ASS Y FOR P990S 1 705A990P C57 01 Q901 ASS Y 705A990S C57 03 Q425 ASS Y 705A990T C57 04 Q417 ASS Y 750A5408 990 AVP 19 HITACHI CRT FOR P990 R479 61A 602 393 52T 39K OHM 5 1 6W Series to NR479 SW101 77A 602 1 CJ TACT SWITCH T...

Page 27: ...T 100UF 20 50V C931 67A 305 101 10J 100u 160V JAMICON C931 67A 305 101 10L 100UF 160V C934 67A 215 391 GFH 390UF 80V LOW FSR BY C934 67A 215 391 GFL 390UF 80V C936 67A 305 102 6 1000UF 20 35V C937 67A 305 102 3 1000 UF 20 16V C939 67A 305 102 3 1000 UF 20 16V C951 67A 215 470 12H 47UF 250V LOW ESR BY C951 67A 215 470 12L 47UF 250V LOW ESR 105 CF418 71A 55 2 FERRITE BEAD C419 andC418 CF419 71A 55 2...

Page 28: ...1 UT NTCR 100 OHM 15 NR630 61A 58 101 WT NTCR 100 OHM 15 NR901 61A 58 8 L NTCR 15OHM NR901 61A 58 8T L NTC SCK 152X PR901 61A 52 27 4W 9 OHM PTCR P105 33A3278 5 5 PIN P402 33A3192 4 4P PLUG P701 33A3803 3 WAFER EH E P903 33A8009 3 3P PLUG Q410 57A 610 501 IRF640A Q412 57A 610 501 IRF640A Q418 57A 600 2 MOS FET IRF630 FAIRCHIRD Q418 57A 600 4 IRF630 SGS THOMSON ST Q420 57A 610 501 IRF640A Q908 57A ...

Page 29: ...ER TRANSFORMER T903 79A 167 111 HA Driver Transformer T903 79A 167 111 LA DRIVER TRANSFORMER TP401 9A 211 2 PIN 1 2X15MM TP701 9A 211 2 PIN 1 2X15MM TP901 9A 211 2 PIN 1 2X15MM VR701 75A 335 223 22K OHM 20 VR702 75A 335 204 200K 20 VR703 75A 335 104 100K OHM 20 VR901 75A 335 101 100 OHM 20 VR902 75A 335 473 U7K OHM 20 X101 93A 22 22 H CRYSTAL HC 49 U8 000 MHZ X101 93A 22 22 PT HC 49U 8MHz Crystal ...

Page 30: ...V C444 65A 442 221 13T 220PF 5 NPO 50V C445 64A176J 104 0T 0 1UF 5 63V C445 64A700J 104 0AT 0 1uF 50V 5 C446 67A 305 109 7T 1UF 20 50V C447 67A 305 109 7T 1UF 20 50V C448 65A 444 681 1T 680P 50V C451 65A 444 101 5T 100 PF 10 50V Y5P C454 65A 450 104 7T 0 1UF 80 20 50V Y5V C455 67A 309 109 7T 1 0UF 20 50V C456 65A 450 104 7T 0 1UF 80 20 50V Y5V C461 67A 309 100 7T 10UF 20 50V C499 95A 90 23 TIN COA...

Page 31: ...222 0AT 2 2nF 50V 5 C959 64A176J 224 0T 22UF 5 63V D101 93A 64 11 52T DIODE 1N4148 D102 61A 602 100 52T 10 OHM 5 1 6W D401 95A 90 23 TIN COATED D402 93A 64 19G 52T BAV21 G I D402 93A 64 501 52T SWITCHING DIODE BAV21 D403 93A 64 11H 52T DIODE 1N4148 HITACHI D405 93A1002 1F 52T 1N5817 D405 93A1002 1P 52T 1N5817 D406 93A1060 6 52T F R D BYV26C D406 93A1060 6G 52T UF4005 G I D409 93A 64 11 52T DIODE 1...

Page 32: ...9 T BEAD J006 71A 55 19 T BEAD J007 71A 55 19 T BEAD J055 61A 172 101 52T 100 OHM 5 1 4W J056 61A 172 101 52T 100 OHM 5 1 4W J087 61A 602 223 52T 22K OHM 5 1 6W J100 61A 172 102 52T 1K OHM 5 1 4W L101 73A 54 339 10T 3 3UH 10 RF COATED CHO L403 95A 90 23 TIN COATED Q101 57A 420 P T TRAN 2SA733P NEC TAPING Q101 57A 420 SG T KSA733C G TA FAIRCHILD Q102 57A 446 2 T 2SC2120 O Q102 57A 446 3 T TOSHIBA 2...

Page 33: ...G Q913 57A 419 SG T KSC945C G TA FAIRCHILD Q914 57A 419 P T TRAN 2SC945P NEC TAPING Q914 57A 419 SG T KSC945C G TA FAIRCHILD Q915 57A 619 1 T 2SA673AC HITACHI Q916 57A 419 P T TRAN 2SC945P NEC TAPING Q916 57A 419 SG T KSC945C G TA FAIRCHILD Q917 57A 521 1 T 2SD667AC R105 61A 602 472 52T 4 7K OHM 5 1 6W R106 61A 602 472 52T 4 7K OHM 5 1 6W R107 61A 602 103 52T 10K OHM 5 1 6W R108 61A 602 101 52T 10...

Page 34: ...M 1 1 4W R437 61A 602 333 52T 33K OHM 5 1 6W R440 61A 172 154 52T 150K OHM 5 1 4W R441 61A 602 563 52T 56K OHM 5 1 6W R442 61A 602 472 52T 4 7K OHM 5 1 6W R444 61A 602 222 52T 2 2K OHM 5 1 6W R445 61A 602 103 52T 10K OHM 5 1 6W R446 61A 172 154 52T 150K OHM 5 1 4W R447 61A 602 102 52T 1K OHM 5 1 6W R448 61A 602 563 52T 56K OHM 5 1 6W R449 61A 602 472 52T 4 7K OHM 5 1 6W R452 61A 602 222 52T 2 2K O...

Page 35: ...90 23 TIN COATED R718 61A 602 103 52T 10K OHM 5 1 6W R719 61A 602 473 52T 47K OHM 5 1 6W R720 61A175L 125 52T 1 2M OHM 1 2W R721 61A 602 473 52T 47K OHM 5 1 6W R722 61A 602 103 52T 10K OHM 5 1 6W R724 61A212Y 105 WT 1 2W 1000K OHMS R725 61A214Y 114 WT 1 4W 110K R726 61A 602 103 52T 10K OHM 5 1 6W R727 61A214Y 154 WT 150K 1 4W R728 61A212Y 105 WT 1 2W 1000K OHMS R729 61A 602 103 52T 10K OHM 5 1 6W ...

Page 36: ...72 103 52T 10K OHM 5 1 4W R981 61A 602 103 52T 10K OHM 5 1 6W R982 61A 172 471 52T 470 OHM 5 1 4W R983 61A 602 223 52T 22K OHM 5 1 6W ZD101 93A 39 73 52T HZ6B1 HITACHI ZD101 93A 39 530 52T ZENER DIODE TZX5V6D ZD102 93A 39 77 52T HZ5C1 ZD102 93A 39 516 52T TELEFUNKEN TZX5V1B ZD103 93A 39 52 52T HZ5C2 5 1V 5 0 5W HITAC ZD103 93A 39 516 52T TELEFUNKEN TZX5V1B ZD401 93A 39 24 52T HZ15 2 15V 5 0 5W HIT...

Page 37: ...V SPARK gap SG804 62A 10 16 W SPARK GAP 1KV BY C MAX AIR988S12 CRT BOARD FOR S990S 1 6A 31 4 BRASS FOR CRT SOCKET 715A 839 1 CRT BOARD FOR S781V C801 64A176J 104 0T 0 1UF 5 63V C802 64A176J 104 0T 0 1UF 5 63V C803 64A176J 104 0T 0 1UF 5 63V C804 67A 309 221 3T 220UF 20 16V C805 67A 309 101 3T 100UF 20 16V C806 67A 309 101 3T 100UF 20 16V C807 65A 450 104 7T 0 1UF 80 20 50V Y5V C809 67A 309 109 7T ...

Page 38: ...805 93A 64 11H 52T DIODE 1N4148 HITACHI D806 93A 64 11H 52T DIODE 1N4148 HITACHI D850 93A 64 19G 52T BAV21 G I D850 93A 64 507 52T FAST RECOVERY DIODE BAV2 D851 93A 64 19G 52T BAV21 G I D851 93A 64 507 52T FAST RECOVERY DIODE BAV2 D852 93A 64 19G 52T BAV21 G I D852 93A 64 507 52T FAST RECOVERY DIODE BAV2 D853 93A 64 19G 52T BAV21 G I D853 93A 64 507 52T FAST RECOVERY DIODE BAV2 D854 93A 64 19G 52T...

Page 39: ...172 333 52T 33K OHM 5 1 4W R818 61A 602 203 52T 20K OHM 5 1 6W R819 95A 90 23 TIN COATED R821 61A 172 151 52T 150 OHM 5 1 4W R822 61A 602 101 52T 100 OHM 5 1 6W R823 61A 602 101 52T 100 OHM 5 1 6W R824 61A 602 100 52T 10 OHM 5 1 6W R825 61A 602 100 52T 10 OHM 5 1 6W R826 61A 602 100 52T 10 OHM 5 1 6W R827 61A 602 471 52T 470 OHM 5 1 6W R828 61A 602 103 52T 10K OHM 5 1 6W R829 61A 602 103 52T 10K O...

Page 40: ...355 2 A Heak sink M1A1730 8 128 SCREW M3x8 IC803 56A 551 501 LM2437T PFC988S PFC BOARD FOR P990S 1 PFC988SAI PFC AI ASS Y 11A6017 1 PCB SUPPORT 95A 205 30 072 UL1015 18BLK TOPCOAT 705A990P PFC 01 Q904 ASS Y A 33A8009 2C H PIN HEADER 2P RIGHT AHGL B 33A8009 2C H PIN HEADER 2P RIGHT AHGL C 33A8009 2C H PIN HEADER 2P RIGHT AHGL C901 67A 309 100 7 10UF 20 50V C910 64A 45G 471 1AT 470PF 2 100V C911 64A...

Page 41: ...57A 724 2 2SK3115 705A769TC56 0 IC601 ASS Y 51A 200 1 Coolant 90A 351 500 A HEAT SINK M1A1730 10 128 SCREW M3x10 IC601 56A5002 1 TDA4866 PARENT NO 705A769TC87 0 AC 1 SOCKET CN901 87A 501 5 RECEPTACLES 0714 INALWAY 87A 501 5 CJ AC INLET 95A 800 2 2C WIRE CORE 96A 29 6 190 H S TUBING DIA 4 0MM 705A790TC57 0 Q403 Q405 Q911 D408 A 32A3028 8 MICA 1PCS FOR 57A600 50 51A 200 1 Coolant 90A 363 516 HEAT SI...

Page 42: ...730 8 128 SCREW M3x8 Q425 57A 728 1 2SB772 Q NEC Q425 57A 728 3 HSB772P HSB772E HI SINCE 705A990TC57 0 Q417 ASS Y 2A6003 1 SCREW NUT 90A6015 1 HEAT SINK M1A1730 8 128 SCREW M3x8 Q417 57A 610 501 IRF640A 750A5408990AV 19 HITACHI CRT FOR P 750A5408 1AV 19 HITACHI CRT C498 65A 1K 181 5T 180P Capacitor C499 95A 90 23 TIN COATED TP498 95A201M 50 172 WIRE ...

Page 43: ...NE D901 D904 CIRCUIT RETIFIER IC601 V OUTPUT Q802 Q807 O P AMP VIDEO Q817 Q819 H F B X RAY B VR902 B CONTROL H V PROCESSOR OFF CS0 CS6 V SYNC O H SYNC O B B G B R B B D G D R D SUSPEND DEGAUSS MUTE CPU F B CONT H803 DDC V SYNC H SYNC V SYNC H SYNC T901 G1 80V ABL 6 3V CONTROL MUTE CONTROL CS CAPACITOR LINEAR L401 OFF OFF MODE Q908 Q916 Q910 Q909 COIL DEGAUSS CN902 G2 H DY P402 MODULATOR DAMPER D40...

Page 44: ...5 P26 P27 P16 INTE P10 AD0 P11 AD1 P12 HALFH0 P13 HALFH1 CE P14 P15 OSC1 OSC0 VDD DAC0 DAC1 DAC2 OUTPUT 3 OUTPUT 2 VCC OUTPUT 4 VCC OUTPUT 1 14 1 13 12 11 10 9 8 2 3 4 5 6 7 30 15 14 13 12 11 31 32 33 34 35 36 10 9 8 7 6 5 37 38 39 4 3 2 1 1 2 3 4 40 IC403 IC404 UM6861 GND RESET_ LM324 IC101 INPUT 3 INPUT 3 NON INVERTING NON INVERTING INVERTING INVERTING INPUT 4 INPUT 4 INPUT 2 INPUT 2 NON INVERTI...

Page 45: ...ILLATOR HORIZONTAL H POSITION PLL1 AND FREQUENCY DETECTOR COINCIDENCE DETECTOR 2 I C BUS REGISTERS AND SOFT START PROTECTION V SIZE VOVSCN V POSITION V LINEARITY BALANCE V LINEARITY V OUTPUT H SIZE H TRAPEZIUM H CORNER H PINCUSHION EW OUTPUT EHT COMPENSATION AND AGC OSCILLATOR VERTICAL INTEGRATOR V SYNC CORRECTION AND POLARITY H C SYNC INPUT REFERENCE AND SUPPLY 2 RECEIVER I C BUS OUTPUT HUNLOCK A...

Page 46: ...INB INA 6 9 4 2 1 8 3 5 7 AMPLIFIER B AMPLIFIER A INPUT STAGE GENERATOR FLYBACK CIRCUIT GUARD IC901 3842 VCC GND O P Ct Rt Is COMP F B Vref 8 2 1 3 4 6 5 7 U V L O 36V 1V 1 2 Vref OSCILLATOR LATCH PWM S R COMP C S 1 3 AMP ERR LOGLC RESET SET Vref 5V BIAS INTERNAL ...

Page 47: ...VCO R HFL VFL SC I2 C BUS BUS ROM RAM FONT12 8 DISPLAY EFFECT VSYNC HSYNC VERTICA L CONTROL DISP L Y OUTPUT PLL TIMING GENERATOR CONTROL REG COLOR CONTROL TEST CIRCUI HORIZONTAL POWER SYSTEM PWM Cha nne l POWER ON LOW VOLTAGE NT6828 Block ...

Page 48: ...0 C717 R705 R704 Q704 R706 R702 R703 R701 R461 C454 D414 H601 C707 R462 C455 R954 R737 IC403 R437 SW901 Q412 R446 C429 R961 R189 R101 Q102 R927 Q425 D859 R191 C113 R102 R709 R708 R866 C407 C719 Q703 R707 R711 ZD704 C859 Q709 C710 R164 R165 Q410 R440 D703 R104 Q850 R865 R872 R811 R837 R736 VR701 R714 R469 C433 R470 D411 D410 C444 R471 ZD406 Q420 R422 R857 D856 R860 T701 P105 SW103 SW104 SW105 C420 ...

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