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HP D8904 Service Manual
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HP D8904 Service Manual

HP D8904 Service Manual

Color monitor
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SERVICE MANUAL

COLOR MONITOR

Hewlett Packard D8904 D8905A S761V

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Summary of Contents for HP D8904

  • Page 1: Service Manual

    SERVICE MANUAL COLOR MONITOR Hewlett Packard D8904 D8905A S761V...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS PAGE 1. SPECIFICATIONS ..................... 2. PRECAUTION AND NOTICES ................2-1 SAFETY PRECAUTIONS ................2-2 PRODUCT SAFETY NOTICE ............... 2-3 SERVICE NOTES ................... 2-4 HIGH VOLTAGE WARNING ............... 3. OPERATING INSTRUCTIONS ................4. ADJUSTMENT ......................4-1 ADJUSTMENT CONDITIONS AND PRECAUTIONS ....... 4-2 MAIN ADJUSTMENTS .................

  • Page 3: Specifications

    1. SPECIFICATIONS FOR D8905A SERIES COLOR MONITOR CRT : 43.2CM(17") 90 Deflection, 29mm Neck, 0.27mm Dot Pitch, Non-Glare Screen Viewable image Size: 40.6CM (16") diagonal Display Color: Unlimited Colors External Controls: Power On/Off, OSD key, Function knob: Contrast, Brightness, H-Size, H-Center, V-Center, V-Size, ZOOM, Pincushion, Trapezoid, Pin-Balance, Parallelogram, Rotation, Color Temperature, Degaussing, Moire Reduce, Recall, Language.
  • Page 4 10. Video Bandwidth: 110 MHz 11. Power Source: Switching Mode Power Supply AC 100 ~ 240V, 50/60Hz Universal Type 12. Operating Temperature: 0¢XC to 40¢XC Ambient 13. Humidity: 10% to 85% Relative, Non-Condensing 14. Weight: 16.0 Kgs(Net), 19.0Kgs(Gross) 15. Dimensions Monitor: Carton: 495(W) ¡Ñ...

  • Page 5: Precaution And Notices

    2. PRECAUTIONS AND NOTICES SAFETY PRECAUTIONS Observe all caution and safety related notes located inside the display cabinet. Operation of the display with the cover removed, may cause a serious shock hazard from the display power supply. Work on the display should not be attempted by anyone who is not thoroughly familiar with precautions necessary when working on high voltage equipment.

  • Page 6: High Voltage Warning

    HIGH VOLTAGE WARNING Operation of monitor outside of cabinet or with back removed may cause a serious shock hazard. Work on this model should only be performed by those who are thoroughly familiar with precautions necessary when working on high voltage equipment.

  • Page 7: Operating Instructions

    3. OPERATING INSTRUCTIONS This procedure gives you instructions for installing and using the Color display. Position the display on the desired operation and plug the power cord into a convenient AC outlet. Three-wire power cord must be shielded and is provided as a safety precaution as it connects the chassis and cabinet to the electrical conduit ground.

  • Page 8: Adjustment

    4. ADJUSTMENT ADJUSTMENT CONDITIONS AND PRECAUTIONS Approximately 30 minutes should be allowed for warm up before proceeding. Adjustments should be undertaken only on those necessary elements since most of them have been carefully preset at the factory. 4-2 MAIN ADJUSTMENTS FUNCTION LOCATION DESIGNATION...
  • Page 9 Factory Preset 6500 9300 CONTRAST H-MOIRE REDUCE...
  • Page 10 BRIGHTNESS V-MOIRE REDUCE H-CENTER R-GAIN H-SIZE G-GAIN V-CENTER B-GAIN V-SIZE R-BIAS ZOOM G-BIAS PINCUSHION R-BIAS TRAPEZOID COLOR TEMPERATURE 9300 PIN-BALANCE 6500 COLOR TEMPERATURE PARALLELOGRAM DEGAUSS ROTATION OSD EXIT CORNER RETURN...
  • Page 11 D. To switches the input signal to the other Timing Mode. Please follow step A ~ C to get the optimum picture. E. Select the " " RETURN function and press the MENU Key, then the Factor Preset window will be returned to the original OSD window.(user's operating condition) F.
  • Page 12 RELATIVE PLACEMENT OF TYPICAL COMPONENTS Purity Magnets 6-pole Convergence Magnets 4-pole Convergence Magnets Deflection Yoke 6. Convergence adjustment A. Produce a magenta crosshatch on the display. B. Adjust the focus for the best overall focus on the display. Also adjust the brightness to the desired condition. C.

  • Page 13: Circuit Description

    5. CIRCUIT DESCRIPTION 5-1 MICRO CONTROLLER CIRCUIT MICRO Controller The IC101 contains a 6502 8-bit CPU core, 512 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 detection, watch- dog timer preventing system from abnormal operation, and an I²C bus interface.

  • Page 14: Deflection Circuit

    DEFLECTION CIRCUIT The deflection circuit is achieved by a high performance and efficient solution IC 401 (TDA9111) for this monitor. The concept is fully DC controllable and can be used in applications with a micro-controller solutions. The TDA9111 provides sync. Processing with full auto sync. Capability, a flexible SMPS block and an extensive set of geometry control facilities.

  • Page 15: Transistor & Diode Circuit

    5-3 TRANSISTOR & DIODE CIRCUIT LOCATION CIRCUIT FUNCTION DESCRIPTION D901 ~ D904 Bridge Rectifier for AC Source D910 Clamp Diode for Snubber CKT D918, D919 Rectifier for Output Voltage D922 Rectifier for Output Voltage D923 Rectifier for Output Voltage D925 Rectifier for B+ Supply D929 B+ Feed Back Rectifier from F.B.T Pulse...

  • Page 16: Trouble Shooting Chart

    6.TROUBLE SHOOTING CHART 6-1 NO RASTER, CRT RELATIVE CIRCUIT PROBLEMS CHECK MAIN PCB POWER SUPPLY 53V, 14V, 78V CHECK POWER SAVING CIRCUIT, H-SYNC, V-SYNC SIGNAL Q909, Q910 CHECK THE HIGE VOLTAGE REFER ITEM S.M.P.S. OF CRT ABOUT 24.5 ~ 25.5KV CHECK FAILSAFE CKT IC401 PIN 25 RELATIVE CKT.
  • Page 17 2.ABNORMAL VIDEO LEVEL ON SCREEN CHECK THE VOLTAGE OF IC801 PIN 2, 16 ABOUT 8V CHECK 8V RELATIVE CIRCUIT CHECK THE SIGNAL INPUT OF R.G.B. ABOUT 0.7Vpp CHECK SIGNAL CABLE OR INTERFACE CARD. CHECK IC801 PIN 11 CLAMP PULSE CHECK THE IC801 PIN 11 RELATIVE CIRCUIT CHECK THE VIDEO OUTPUT OF IC801 PIN 13, 15, 18 ABOUT 4Vpp,...

  • Page 18: Abnormal Display

    6-2 ABNORMAL DISPLAY 1.NO SIGNAL ON SCREEN CHECK VIDEO IC801 VCC ABOUT 8V CHECK THE 12V PIN OF P802 CONNECTOR CHECK THE OUTPUT VOLTAGE OF IC801 PIN 13, 15, 18 ABOUT 3Vpp CHECK THE RELATIVE CIRCUIT OF IC801 PIN 2/PIN 16 Vcc CIRCUIT CHECK THE B+ VOLTAGE OF VIDEO PCB ABOUT 78V CHECK THE 78V RELATIVE CIRCUIT...

  • Page 19: No Blanking

    6-3 NO BLANKING CHECK THE RELATIVE CIRCUIT OF BLANKING CHECK THE RELATIVE CIRCUIT OF Q601, Q707 CHECK R859 ON VIDEO PCB, CHECK G1 RELATIVE CIRCUIT FBT PIN 5 ON MAIN PCB 6-4 HOR./OSC/DEF/HV CIRCUIT FAULT 1. NO RASTER (DISCONNECT WITH SIGNAL CABLE) CHECK IC401 PIN 29 ABOUT 12 VDC CHECK IC401 PIN 29 RELATIVE CIRCUIT CHECK IC401 PIN 26 WAVE FORM...

  • Page 20: Abnormal Horizontal Deflection

    6-5 ABNORMAL HORIZONTAL DEFLECTION 1. ABNORMAL HORIZONTAL WIDTH OF VIDEO READJUST H-WIDTH FUNCTION CHECK THE RELATIVE CIRCUIT OF Q404, Q405, & Q406 CHECK FBT B+ VOLTAGE ABOUT 60V AT FH=31KHz CHECK THE RELATIVE CIRCUIT OF SMPS. CHECK THE HV OF CRT ABOUT 25KV 2.

  • Page 21: Abnormal Vertical Scanning

    6-6 ABNORMAL VERTICAL SCANNING 1. ABNORMAL VERTICAL SIZE READJUST V-SIZE FUNCTION VALUE CHECK THE IC601 PIN 2 ABOUT 11.8V PIN 4 ABOUT -12V CHECK D601, C605 RELATIVE CIRCUIT CHECK VERT. OSC CIRCUIT CHECK THE VOLTAGE OF IC101 RELATIVE CIRCUIT READJUST V-SIZE FUNCTION VALUE CHECK IC401 PIN 20, 21, 22, 23 RELATIVE CIRCUIT 2.
  • Page 22 READJUST FOCUS CONTROL CHECK FOCUS CONTROL UNIT, FOCUS LEAD WIRE, CRT SOCKET & CRT...

  • Page 23: Power Supply Trouble Shooting Chart

    6-9 POWER SUPPLY TROUBLE SHOOTING CHART BEFORE CHECK SW.REG. PLEASE REFER TO THE POWER SUPPLY BLOCK DIAGRAM POWER SUPPLY OUTPUT: (A) VARIABLE OUTPUT : 60.5V - 145V (DEPENDING EPENDING UPON H.SYNC FREQUENCY) CONSTANT OUTPUT : 6.3V, 14.5V, -12V, 80V BEAD SET ABNORMAL VARIABLE OUTPUT MAKE SURE THAT CHECK AC LINE...
  • Page 24 CRT BOARD SHIELD 85A582-1 SCREW M4 X 16 CRT SOCKET BOARD Q1A340-16-128 X 4 VIDEO BOARD BACK COVER 34A814-76-A DEGAGSSING COIL 705A5855-3AV SCREW M5 X 25 1A6003-21-128 X 4 FRONT PANEL 34A813-A76-A SCREW M3 X 10 C1S1230-10-128 X 2 COLOR FBT(T402) SCREW M3.5 X 10 79A769T-7 G1A1035-10-128...

  • Page 25: Parts List Of Cabinet

    PARTS LIST OF CABINET LOCATION D8905A SPECIFICATION (LOW RADIATION 220V) CM761VSNHP CHAS ASS¡¦Y 6003- 21 - CRT SCREW RUBBER WASHER 112- WIRE MOUNT 115- FBT CLIP 385- RUBBER FOOT 403- STEEL 506- STEEL WIRE SPRING 3178- 690 - LOGO 3663- SUPPORT 4020- S.W.CAP...
  • Page 26 8013- CONNECTOR 1035- 10 - SCREW 340- 16 - SCREW 1030- 10 - SCREW 705A 769N- F34 - CAB¡¦T ASS¡¦Y 750A 1697- 504 - DEG. COIL UL/CSA 750A 5868- 17¡¨ LG .27 S-ART CRT H701 750A 1697- 503 - ROTATION COIL...
  • Page 27 PARTS LIST OF CHAS LOCATION D8905A SPECIFICATION AIM761VSNHP MAIN BOARD ASS'Y CR761VSNHP CRT BOARD ASS¡¦Y 421- SCREW 141- PCB SUPPCRT 5640- AL GND LUG 5659- AC BRACKET 581- 26 - FAIL-SAFE LABEL 581- 624 - CHASSIS LABEL 500- CABLE TIE SOLDER BAR 100- FERRITE BEAD...
  • Page 28 C427 210J- 644 - 0.64UF 250V C431 210J- 104 - 0.1uF 250V C432 215- 470 - 47UF 200V C439 210J- 394 - 0.39UF 250V +-5% C488 471 - 470PF 2KV C489 16 - SPARK GAP 1KV C606 309- 471 - 470UF 16V +-20% C709 151 -...
  • Page 29 LOCATION D8905A SPECIFICATION C915 103 - 0.01uF 2KV 20% C929 305- 100 - 10UF 250V +-20% C931 215- 391 - 390Uf 80V C936 305- 102 - 1000uF +-20% 25V C937 309- 222 - 2200UF 16V +-20% C939 305- 102 - 1000uF +-20% 16V C942 309-...
  • Page 30 Q907 728- 2SB772 Q Q909 728- 2SB772 Q Q923 498- TRAN BF423 602- 103 - 10K OHM +-5% 1/6W R400 61A 152M- 151 - 150 OHM +-5% 2W R426 61A 153M- 220 - 22 OHM +-5% 3W R428 61A 153M- 828 - 0.82 OHM +-5% 3W R455...
  • Page 31 LOCATION D8905A SPECIFICATION RA101 124- 472 - 7 PIN 4.7K OHM RY401 260- RELAY RY402 260- RELAY RY901 260- RELAY DC12V G5PA-2 T401 167- 110 - DRIVER X¡¦FMR T901 761- POWER X'FMR SW101 77A 411A- PUSH SWITCH T402 761- T403 167- 112 - DRIVER X'FMR...
  • Page 32 C161 442- 471 - 470PF 50V C162 444- 102 - 1000PF +-10% Y5V 50V C163 444- 101 - 100PF +-10% 50V C164 450- 104 - 0.1Uf +80-20% Y5V 50V C166 176J- 103 - 0.01UF +-5% 100V C167 700J- 104 - 0.1UF 50V +-5% C168 450-...
  • Page 33 LOCATION D8905A SPECIFICATION C408 444- 101 - 100PF +-10% 50V C410 450- 104 - 0.1Uf +80-20% Y5V 50V C411 309- 470 - 47uF 16V +-20% C412 444- 331 - 330PF +-10% 50V Y5P C413 450- 104 - 0.1Uf +80-20% Y5V 50V C415 44J- 472 -...
  • Page 34 C760 229 - 2.2UF 50V C770 TIN COATED C908 450- 104 - 0.1uF +80-20% Y5V 50V C916 305- 101 - 100uF +-20% 25V C918 44J- 332 - 3300PF 100V C920 44J- 102 - 1000PF 100V C921 176J- 104 - 0.1uF +-5% 100V C922 176J- 104 -...
  • Page 35 LOCATION D8905A SPECIFICATION C945 176J- 104 - 0.1uF +-5% 100V C946 176J- 223 - 0.022uF 250V C947 309- 479 - 4.7uF +-20% 50V C950 221 - 220PF 1KV +-10% C955 101 - 100PF 1KV +-10% C958 309- 101 - 100uF +-20% 16V C960 309- 229 -...
  • Page 36 D910 21P - PS156R D911 1060- BYV26C D912 11 - DIODE IN4148 D913 11 - DIODE IN4148 D914 11 - DIODE IN4148 D917 11 - DIODE IN4148 D918 1060- BYV26C D926 11 - DIODE IN4148 D927 11 - DIODE IN4148 D929 1040- UF4004...
  • Page 37 LOCATION D8905A SPECIFICATION FB050 SHIELD BEAD FB101 19 - BEAD FB401 SHIELD BEAD FB402 19 - BEAD FB403 19 - BEAD FB405 19 - BEAD FB409 19 - BEAD FB903 19 - BEAD FB904 19 - BEAD FB905 SHIELD BEAD FB906 SHIELD BEAD FB907...
  • Page 38 J047 TIN COATED J048 TIN COATED J049 TIN COATED J051 TIN COATED J052 TIN COATED J053 TIN COATED J055 TIN COATED J056 TIN COATED J057 TIN COATED J058 TIN COATED J059 TIN COATED J060 TIN COATED J062 TIN COATED J063 TIN COATED...
  • Page 39 LOCATION D8905A SPECIFICATION J064 TIN COATED J065 TIN COATED J068 TIN COATED J069 TIN COATED J070 TIN COATED J071 TIN COATED J072 TIN COATED J073 TIN COATED J074 TIN COATED J076 TIN COATED J077 TIN COATED J078 TIN COATED J079 TIN COATED J080 TIN COATED...
  • Page 40 J125 TIN COATED J126 TIN COATED J127 TIN COATED J128 TIN COATED J129 TIN COATED J130 TIN COATED J131 TIN COATED J132 TIN COATED J133 TIN COATED J134 TIN COATED J135 TIN COATED J136 TIN COATED J137 TIN COATED J138 TIN COATED...
  • Page 41 LOCATION D8905A SPECIFICATION J139 TIN COATED J140 TIN COATED J141 TIN COATED J143 TIN COATED J144 TIN COATED J146 TIN COATED J147 TIN COATED J148 TIN COATED J149 TIN COATED J151 TIN COATED J152 TIN COATED J154 TIN COATED J156 TIN COATED J157 TIN COATED...
  • Page 42 Q735 498- TR. BF423 Q740 493- 10 - TR. BF422 Q741 419- SG - KSC945C-G Q742 419- SG - KSC945C-G Q902 446- TR. 2SC1213AC Q903 419- SG - KSC945C-G Q905 420- SG - TR. KSA733C-G Q908 419- SG - KSC945C-G Q910 419- SG -...
  • Page 43 LOCATION D8905A SPECIFICATION R100 602- 472 - 4.7K OHM +-5% 1/6W R106 602- 303 - 30K OHM +-5% 1/6W R108 602- 512 - 5.1K OHM +-5% 1/6W R109 602- 512 - 5.1K OHM +-5% 1/6W R110 172- 221 - 220 OHM +-5% 1/4W R111 172- 221 -...
  • Page 44 R163 172- 682 - 6.8K OHM +-5% 1/4W R165 602- 222 - 2.2K OHM +-5% 1/6W R167 175L- 331 - 330 OHM +-5% 1/2W R170 602- 101 - 100 OHM +-5% 1/6W R171 602- 101 - 100 OHM +-5% 1/6W R172 602- 101 -...
  • Page 45 LOCATION D8905A SPECIFICATION R403 602- 101 - 100 OHM +-5% 1/6W R404 602- 101 - 100 OHM +-5% 1/6W R405 602- 101 - 100 OHM +-5% 1/6W R406 602- 101 - 100 OHM +-5% 1/6W R408 172- 474 - 470K OHM +-5% 1/4W R409 210- 133 -...
  • Page 46 R606 61A 175L- 181 - 180 OHM +-5% 1/2W R609 602- 222 - 2.2K OHM +-5% 1/6W R610 172- 124 - 120K OHM +-5% 1/4W R611 602- 123 - 12K OHM +-5% 1/6W R612 172- 222 - 2.2K OHM +-5% 1/4W R613 172- 102 -...
  • Page 47 LOCATION D8905A SPECIFICATION R715 602- 103 - 10K OHM +-5% 1/6W R720 61A 175L- 104 - 100K OHM +-5% 1/2W R721 61A 175L- 102 - 1K OHM +-5% 1/2W R722 602- 332 - 3.3K OHM +-5% 1/6W R724 61A 212Y- 105 - 1MEG OHM 1/4W +-5% R725...
  • Page 48 R930 172- 102 - 1K OHM +-5% 1/4W R931 200- 109 - 1 OHM +-1% 1/4W R932 61A 212Y- 104 - 100K OHM 1/2W +-5% R935 172- 334 - 330K OHM +-5% 1/4W R937 172- 151 - 150 OHM +-5% 1/4W R938 172- 220 -...
  • Page 49 LOCATION D8905A SPECIFICATION R955 19 - BEAD R957 172- 473 - 47K OHM +-5% 1/4W R958 172- 102 - 1K OHM +-5% 1/4W R959 172- 333 - 33K OHM +-5% 1/4W R960 172- 473 - 47K OHM +-5% 1/4W R962 172- 220 - 22 OHM +-5% 1/4W...
  • Page 50 705A 761V- R56 - IC802 ASS¡¦Y C835 103 - 10000PF 2KV C837 305- 479 - 4.7UF 160V +-20% 203- BRASS PIN 203- BRASS PIN IC801 539- LM1279N P801 3278- PLUG P802 3278- 10P PLUG P803 3278- 6P PLUG P804 3278- 11P PLUG R807 208-...
  • Page 51 PARTS LIST OF CRT AUTO INS. PC BOARD LOCATION AIR761VSNHP SPECIFICATION BRASS 715A 793- CRPC BOARD C801 305- 100 - 10uF +-20% 50V C802 305- 100 - 10uF +-20% 50V C803 305- 100 - 10uF +-20% 50V C804 176J- 104 - 0.1uF +-5% 63V C805 176J-...
  • Page 52 D812 31T - SWITCH DIODE D813 31T - SWITCH DIODE D814 31T - SWITCH DIODE D815 31T - SWITCH DIODE D816 31T - SWITCH DIODE D817 9T - 2A 600V D840 11 - DIODE IN4148 D841 11 - DIODE IN4148 D842 11 - DIODE IN4148...
  • Page 53 LOCATION AIR761VSNHP SPECIFICATION J804 TIN COATED J805 TIN COATED J806 TIN COATED J807 TIN COATED J808 TIN COATED J809 TIN COATED J810 TIN COATED J811 TIN COATED J812 TIN COATED J814 TIN COATED J815 TIN COATED J817 TIN COATED J818 TIN COATED L801 19 -...
  • Page 54 R840 172- 222 - 2.2K OHM +-5% 1/4W R841 172- 223 - 22K OHM +-5% 1/4W R842 172- 223 - 22K OHM +-5% 1/4W R843 172- 222 - 2.2K OHM +-5% 1/4W R844 172- 223 - 22K OHM +-5% 1/4W R845 172- 222 -...
  • Page 55 LOCATION AIR761VSNHP SPECIFICATION R857 61A 175L- 101 - 100 OHM +-5% 1/2W R858 TIN COATED R860 61A 175L- 104 - 100K OHM +-5% 1/2W R866 602- 101 - 100 OHM +-5% 1/6W R867 602- 101 - 100 OHM +-5% 1/6W R868 602- 101 -...
  • Page 56 1130- SCREW 1730- SCREW 1730- 10 - SCREW D408 220- FMP-2FUR 1500/600V 95A 205B- 30 - WIRE Q403 706- 2SC5521Z Q406 415- TR. TIP122 PARTS LIST OF Q901 ASS'Y LOCATION PARTS No. SPECIFICATION NYLON WASHER 372- SILICONE RUBBER 348- HEAT SINK 1730- 10 - SCREW...
  • Page 57 PARTS LIST OF NR901 ASS'Y LOCATION PARTS No. SPECIFICATION 203- NR901 8T - NTC.SCK-152X PARTS LIST OF AC SOCKET ASS'Y LOCATION PARTS No. SPECIFICATION 205S- 354 - WIRE&CORE ASS'Y H.S. TUBING CN901 501- RECEPTACLES 0714 PARTS LIST OF D919 ASS'Y LOCATION PARTS No.
  • Page 58 PARTS LIST OF IC101 ASS'Y LOCATION PARTS No. SPECIFICATION IC101 1125- 10 - NT68P61A IC102 1133- 24LC04B/P IC105 1131- NT6828-00013 16 PIN X101 8.0000 MHZ PARTS LIST OF IC101 ASS'Y LOCATION PARTS No. SPECIFICATION C108 442- 220 - 22PF +-5% NPO 50V IC101 1125- WT62P1...
  • Page 59 IC801 IC802 SIGNAL LM1279N 25KV CABLE LM2438 O/P PRE.AMP. FOCUS FUNCTION ON SCREEN CONTROL DISPLAY IC105 IC101 UM68P61A WT62P1 IC401 Q402,T401 Q403,T402(FBT) TDA9111 CRYSTAL 8M HOR. DRIVER HOR.O/P VERT.&HOR.OSC Q907,Q908 Q909,Q910 X-RAY PROTECTION POWER SAVING Q404,Q405,Q406 IC601 PINCUSHION & TDA9302H H-SIZE CONTROL VERT.O/P Q601...
  • Page 60 -12V Q909 Q921 OUTPUTS RECTIFIED Q910 T901 DEGAUSSING RECTIFIED & & C.K.T Q907 SMOOTHED 6.3V SMOOTHED 6.3V Q908 POWER TRANSFORMER R963 START Q913 RECTIFIED C.K.T R122 RY901 & LED1 Q923,R932 L906 SMOOTHED D911,D917 FROM IC101 CPU VARI. TRANSFORMER POWER Q901 IC101 CONTROL ON/OFF...
  • Page 61 IC101 IC104 UM6861/WT62P1 74LS14 DAC2 VSYNC1/INTV DAC1 HSYNC1 DAC0 DAC3 RESET_ DAC4 DAC5 DAC6 OSC0 DAC7 OSC1 P07/HSYNC0 P06/VSYNC0 [CE]P14 P05/DAC13 P13/HALFH1 P04/DAC12 P12/HALFH0 P03/DAC11 P11/AD1 P02/DAC10 P10/AD0 P01/DAC9 P16/INTE P00/DAC8 P31/SCL P30/SDA...
  • Page 63 IC105 MTV016 8 DATA DATA CCS0 DISPLAY & ROW CCS1 SERIAL DATA DAEN CONTROL BLINK INTERFACE 2 RAEN CAEN REGISTERS CRADDR VDDA LUMA VSSA CHARACTER ROM BORDER 5 RCADDR ARWDB ADDRESS BUS HDREN 9 DADDR LUMINANCE & VDREN BORDGER ADMINISTRATOR VCLKS 5 WADDR NROW...
  • Page 64 IC102 24C04 HV GENERATOR MEMORY EEPROM ARRAY CONTROL CONTROL (128X8) LOGIC LOGIC XDEC PAGE LATCHES YDEC SENSE AMP R.W CONTROL IC601 TDA9302H FLYBACK GENERATOR POWER AMPLITIER THERMAL PROTECTION IC802 LM2438/LM2439 Vin 1 Vin 2 Vin 3 Vout 3 Vout 2 Vout 1...
  • Page 65 IC901 3842 SET/ Vref Vref RESET U.V.L.O. INTERNAL LOGLC BIAS 1/2 Vref C.S. COMP COMP. LATCH OSCILLATOR Ct/Rt IC801 LM1279N/LM1279AN RED OSD IN GREEN OSD IN BLUE OSD IN CONTRAST 12dB DRIVE ATTENUATOR ATTENUATOR RED VIDEO IN RED OUT R CLAMP CAP RED DRIVE 1.35V CONTRAST...
  • Page 67 11-2 CRT BOARD LAYOUT...
  • Page 68 06/13/2000 06/14/2000 06/19/2000 08/21/2000 09/13/2000 09/18/2000 10/27/2000 12/01/2000 01/05/2001 PARTS NO : 41A31-058V IC401 PIN22 IC801 PIN3, D8904/D8905 IC101 PIN7 IC101 PIN8 IC101 PIN40 IC101 PIN39 IC101 PIN33 IC101 PIN32 IC401 PIN1 IC401 PIN2 IC401 PIN5 IC401 PIN9 IC401 PIN10...
  • Page 69 H804B S761V H802 G/D B/D R146 D130 C140 IN5817 10UF H-OUT SENSE V-OUT CONT C103 R771 C104 R120 R172 R119 100UF R132 R102 C770 R770 1/4W 95A90-23 1/4W ZD105 R101 Q710 C130 IC101 R733 2.2K 100PF 56A1125-74 R775 C750 ZD770 R180 R118 (NC)
  • Page 70 10 11 P804 CRPC-M569Q2 C820 R847 R849 715A755-XX R866 R844 220K P801 220K 100V 1/4W 1/4W 1/4W R-BIAS R886 R887 R801 C812 R888 Q821 C813 D814 C811 100UF Q831 R831 57A493-500-T BAV20 BF423 BF422 R891 IC801 C831 R802 R867 C870 LM1279N 1000 R893...
  • Page 71 T901 80A761-1-L D918 R912 C930 L903 C929 47UF 93A1060 73A259-4 10UF D912 160V C907 -6-52T 200UH 250V R917 93C64-11H-52T (NC) 220UF BYV26C D901 D904 470K 1N4148 400V C950 1/2W 93C52-55P-52T L906 Q923 FB905 73A253-88-L 1N5408 57A498-1-T RY901 R927 95A90-23 600UH CN902 D902 D903...
  • Page 72 V-OUT D601 93A52-47P-52T D603 1N4004 93A64-11H-52T 1N4148 R747 R608 R746 C740 R741 D607 D741 C606 R740 PS156R 1/2W 93C64- 470UF R613 1/2W 450V 1/2W 11H-52T C605 1/2W 47UF 1/4W 12.7 13.1 R612 D602 D740 Q740 C615 93A64- PS156R R601 57A493-10-T 0.01 11H-52T 1/4W...

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