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HP D8904 Service Manual Download Page 16

6.TROUBLE SHOOTING CHART

 

 

 

6-1 NO RASTER, CRT RELATIVE CIRCUIT PROBLEMS

 

 

 

 

 

 

 

REFER ITEM S.M.P.S.

BRIGHTNESS SET TO MAX. THEN 
CHECK CRT G1 VOLTAGE

NG

NG

NG

NG

NG

OK

OK

OK

OK

OK

CHECK THE HIGE VOLTAGE

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

CHECK SCREEN VOLTAGE ABOUT

LESS THAN 300V

CHECK FBT

CHECK MAIN PCB POWER SUPPLY

CHECK FAILSAFE CKT IC401

Q909, Q910

CHECK CRT'S HEATER RELATIVE

CIRCUIT Q907, Q908

Q703, Q704, Q705 RELATIVE CKT.

PIN 25 RELATIVE CKT.

OF CRT ABOUT 24.5 ~ 25.5KV

400V TO 600V

REFER ITEM 6-2

53V, 14V, 78V

CATHODE ABOUT 55V TO 65V

Page 18 of 71

5Elr SERVICE MANUAL

9/4/2002

file://D:\PC%20AOC\SERVICE%20MANUAL\HP\D8905A\S761V-D8905A.htm

Summary of Contents for D8904

Page 1: ...SERVICE MANUAL COLOR MONITOR Hewlett Packard D8904 D8905A S761V ...

Page 2: ...IT K K K K K K K K K K K K 13 5 3 TRANSISTOR DIODE CIRCUIT K K K K K K K K 14 6 TROUBLE SHOOTING CHART 15 6 1 NO RASTER CRT RELATIVE CIRCUIT PROBLEMS 15 6 2 ABNORMAL DISPLAY 17 6 3 NO BLANKING K 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 20 6 9 POWER SUPPLY TROUBLE SHOOTING CHART 2...

Page 3: ... POS H Period µs 31 78 31 78 26 67 23 11 21 333 18 63 16 66 14 56 15 63 H Sync Width µs 3 18 3 81 2 03 1 56 1 616 1 138 1 219 1 016 1 037 H Back Porch µs 1 96 1 589 3 81 2 22 3 232 2 702 2 235 2 201 2 296 H Active µs 25 42 25 42 20 32 17 78 16 162 14 22 13 10 83 11 85 H Front Porch µs 0 64 0 64 0 51 1 56 0 323 0 569 0 203 0 508 0 444 H Blanking µs 6 36 5 72 6 35 5 33 5 172 4 409 3 657 3 725 3 778 ...

Page 4: ...e 0 XC to 40 XC Ambient 13 Humidity 10 to 85 Relative Non Condensing 15 Dimensions Monitor Carton 495 W Ñ 455 H Ñ 530 D mm Monitor 410 W Ñ 402 H Ñ 420 D mm 16 External Connection 15 Pin D type Connector AC Power Cord 17 Regulations UL CSA FDA FCC TÜV GS CE MPR II TCO 99 14 Weight 16 0 Kgs Net 19 0Kgs Gross Pa 5Elr SERVICE MANUAL ...

Page 5: ...re sensitivity in the following manner Connect a 1500 ohms 10 Watt resistor paralleled by a 0 15UF AC type capacitor between a known good earth ground water pipe conduit etc and the exposed metallic parts simultaneously Measure the AC voltage across the combination of 1500 ohms resistor and 0 15UF capacitor c Reverse the AC plug at the AC outlet and repeat AC voltage measurements for each exposed ...

Page 6: ...rtant 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 unauthorized sub...

Page 7: ...connector information is as follow 15 Pin Color Display Signal Cable 3 Apply power to the display by turning the power switch to the ON position and allow about thirty seconds for display tube warm up The Power On indicator lights when the display is on 4 With proper signals feed to the display a pattern or data should appear on the screen adjust the brightness and contrast to the most pleasing di...

Page 8: ...tness set to max Then adjust VR702 to be 55 VDC 2 Factory preset Timings Adjustment A Press MENU Key to show OSD window press Up or Down Key to switch the functional controls B Press the Up Key to select the ZOOM function then press the MENU Key While do not release the MENU Key until the OSD window changed to the Factory preset window C The Factory preset window contains the following functional ...

Page 9: ...080 Factory Preset 9300 6500 CONTRAST H MOIRE REDUCE Pag E MANUAL ...

Page 10: ...NTER R GAIN H SIZE G GAIN V CENTER B GAIN V SIZE R BIAS ZOOM G BIAS PINCUSHION R BIAS TRAPEZOID 9300 COLOR TEMPERATURE PIN BALANCE 6500 COLOR TEMPERATURE PARALLELOGRAM DEGAUSS ROTATION OSD EXIT CORNER RETURN Page 12 o SERVICE MANUAL ...

Page 11: ...tern then adjust contrast to 165 Ó25 cd m C Recheck item A B to make sure both of them in spec Finally select OSD function to the 9300 XK function then press the MENU Key To make the setting data saved in the memory D The adjustment of 6500 XK white Balance May follow step A C with the x 313 Ó 10 y 329 Ó 10 E Full white luminance a Set mode 1 640 Ñ480 Fh 31 5KHz full white pattern b Image Size H 3...

Page 12: ...mbly See above diagrams D Horizontal red and blue lines are converged by varying the two tabs together keeping the angle between them constant E Produce a white crosshatch pattern on the display F Vertical green and magenta lines are converged by varying the angle between the two tabs of the 6 pole magnets G Horizontal green and magenta lines are converged by varying the two tabs together keeping ...

Page 13: ...n Screen Display Controller The IC105 is designed for display the built in characters or fonts onto monitor screen The display operation is by transforming data and control information from micro controller to RAM through a serial data interface Pin2 is used to control the internal oscillator frequency by DC voltage input from external low pass filter R154 C166 R155 and filter R175 C167 is used to...

Page 14: ...tor saw tooth voltage The PLL loop filter C435 C437 R411 D403 is connected to Pin7 PLL2 Phase Detector This phase detector is similar to the PLL1 detector and compares the line flyback pulse at pin 12 with the oscillator saw tooth voltage The PLL2 detector thus compensates for the delay in the external H deflection circuit by adjusting the phase of the HDRV output pulses The phase between H flybac...

Page 15: ...Suspend Mode to Cut off 14V Supply Voltage Q912 Q920 Push Pull Topology to Drive Q911 Q913 Degaussing Switcher Transistor Q921 5V Regulator Transistor Q401 Turn on at Power ON OFF and Change Mode to Protect Hor Block Q402 HOR Driver Transistor Q407 Q408 As a Switcher for Horizontal S Correction CKT Q426 Horizontal s correction control MOSFET Q404 Q405 As Differential Amp to Drive Q406 Q406 Transis...

Page 16: ...OUT 6 3V CHECK VOLTAGE OF THE CRT CHECK BRIGHTNESS CIRCUIT OK CHECK POWER SAVING CIRCUIT ABNORMAL DISPLAY H SYNC V SYNC SIGNAL CHECK SCREEN VOLTAGE ABOUT LESS THAN 300V CHECK FBT CHECK MAIN PCB POWER SUPPLY CHECK FAILSAFE CKT IC401 Q909 Q910 CHECK CRT S HEATER RELATIVE CIRCUIT Q907 Q908 Q703 Q704 Q705 RELATIVE CKT PIN 25 RELATIVE CKT OF CRT ABOUT 24 5 25 5KV 400V TO 600V REFER ITEM 6 2 53V 14V 78V...

Page 17: ... R G B APPROACH STANDARD CHECK SIGNAL CABLE OR INTERFACE CARD CONTRAST SET MAX PIN 2 16 ABOUT 8V CHECK 8V RELATIVE CIRCUIT CHECK THE IC801 PIN 11 RELATIVE CIRCUIT RELATIVE CIRCUIT CHECK IC801 PIN 11 CLAMP PULSE PIN 13 15 18 ABOUT 4Vpp CHECK IC801 PIN 3 PIN 5 PIN 8 PIN 10 OK NG CHECK IC101 PIN 5 VOLTAGE ABOUT 5V CHECK SIGNAL CABLE CHECK Q921 GOOD OR FAIL OR H802 PIN 2 3 DATA OUTPUT ...

Page 18: ...E ABOUT 40Vpp 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 CHECK FBT CRT RELATIVE CIRCUIT CHECK VIDEO IC801 VCC ABOUT 8V OF IC801 PIN 13 15 18 ABOUT 3Vpp CHECK THE IC802 OF IC801 PIN 2 PIN 16 Vcc CIRCUIT OR REFER ITEM 6 1 VIDEO PCB ABOUT 78V CHECK THE 78V RELATIVE CIRCUIT ...

Page 19: ...DEO PCB FBT PIN 5 ON MAIN PCB OF Q601 Q707 NG OK OK OK NG NG NG CHECK THE COLLECTOR VOLTAGE CHECK THE COLLECTOR VOLTAGE RELATIVE CIRCUIT RELATIVE CIRCUIT CHECK Q402 T401 CHECK T401 T402 Q402 Q403 ABOUT 3Vpp OF Q403 ABOUT 1200Vpp AT FH 31KHz D408 C418 C419 H DY B CHECK IC401 PIN 26 WAVE FORM CHECK IC401 PIN 4 7 PIN 13 CHECK IC401 PIN 29 ABOUT 12 VDC CHECK IC401 PIN 29 RELATIVE CIRCUIT OF Q402 ABOUT...

Page 20: ...CENTER 4 ABNORMAL HORIZONTAL LINEARITY NG OK CHECK THE RELATIVE CIRCUIT CHECK THE RELATIVE CIRCUIT OF SMPS READJUST H WIDTH FUNCTION OF Q404 Q405 Q406 CHECK THE HV OF CHECK FBT B VOLTAGE CRT ABOUT 25KV ABOUT 60V AT FH 31KHz CHECK D418 D419 R457 R458 L404 RELATIVE CIRCUIT CHECK IC401 PIN 4 7 AND IC101 PIN 28 29 CHECK L401 L403 Q426 RY401 ...

Page 21: ...TION VALUE RELATIVE CIRCUIT CHECK VERT OSC CIRCUIT RELATIVE CIRCUIT NG READJUST V SIZE FUNCTION VALUE CHECK THE VOLTAGE OF IC101 RELATIVE CIRCUIT CHECK IC401 PIN 20 21 22 23 CHECK THE IC601 PIN 2 ABOUT 11 8V PIN 4 ABOUT 12V CHECK D601 C605 NG READJUST V CENTER RELATIVE CKT CHECK IC401 AND IC601 NG READJUST SIDEPIN CHECK IC401 Q404 Q405 Q406 RELATIVE CKT ...

Page 22: ...READJUST FOCUS CONTROL NG CHECK FOCUS CONTROL UNIT FOCUS LEAD WIRE CRT SOCKET CRT Page 24 of 71 ERVICE MANUAL ...

Page 23: ... NG OK OK OK NG OK NG YES NO CHECK BRIDGE RECTIFIED CIRCUIT CHECK START C K T 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 OUTPUT IS NOT SHORTED R928 R932 D911 D917 PIN 14 15 16 28 B DRIVER 6 3V 12V CIRCUIT OUTPUT IC401 ...

Page 24: ...1A141 1 HEAT SINK RUBBER FOOT 12A385 1 SWIVAL BASE X 4 CRT BOARD SHIELD 705A5855 3AV 79A769T 7 Q403 Q406 D408 HEAT SINK IC601 T901 89A173 49 4 80A769T 1 1L SCREW M3 5 X 10 G1A1035 10 128 Q1A340 16 128 X 4 KEY PAD 33A4155 76 A POWER LINK 33A4020 Y A FRONT PANEL POWER HOLDER POWER BUTTON POWER LENS 34A813 A76 A 85A582 1 33A4156 1 33A4153 1 33A4154 76 A 15A5659 500 2 34A740 Y L 34A741 Y L 34A814 76 A...

Page 25: ...512 RECYCLE LABEL 40A 153 513 CRT WARNNG LABEL 40A 154 501 1 HI POT GND LABEL 40A 155 185 ID LABEL 40A 581 26 704 LABEL 40A 581 625 2A PALLET LABEL 40A 581 690 1A CARTON LABEL 41A 68 508 A CARD 41A 68 615 4B TCO 99 CARD 41A 68 690 6A SETTING UP GUIDE 41A 68 690 21A WARRANTY STATEMENTS 41A 68 690 25A DOC FLYER 41A 578 690 1A MANUAL 44A 6754 1 EPS CUSHION 44A 6754 2 EPS CUSHION 44A 6754 690 2A CARTO...

Page 26: ...1035 10 128 SCREW Q1A 340 16 128 SCREW Q1A 1030 10 128 SCREW 705A 769N F34 01N CAB T ASS Y 750A 1697 504 JA DEG COIL UL CSA 750A 5868 3AV 17 LG 27 S ART CRT H701 750A 1697 503 NA ROTATION COIL Page 28 of 71 5Elr SERVICE MANUAL ...

Page 27: ...AC SOCKET ASS Y 705A 761U C93 01 D919 ASS Y 705A 761V C56 HP1 IC101 ASS Y 705A 761V C56 HP2 IC101 ASS Y 750A 5866 761 HPV 17 LG MPRII 750A 5868 761 HPV 17 LG TCO GND2 95A 205 30 082 WIRE SW101 77A 602 1 CJ TACT SWITCH SW102 77A 602 1 CJ TACT SWITCH SW103 77A 602 1 CJ TACT SWITCH SW104 77A 602 1 CJ TACT SWITCH AS1 95A 205B 30 06A WIRE B B 95A 201 69 021 WIRE C C 95A 201 69 022 WIRE C1 65A 450 104 7...

Page 28: ... 1KV C606 67A 309 471 3 470UF 16V 20 C709 65A 1K 151 6A 150PF 1KV C713 67A 305 229 12 2 2uF 20 250V C720 65A 1K 102 5T 1NF 1KV 10 C740 67A 305 109 15 1UF 450V C900 65A 305M 472 2B2 4700PF 20 400VAC C901 63A 108K 334 CS 0 33UF C902 63A 107 224 5 0 22Uf 250V C907 65A 30 221 14D 220UF 400V Page 30 of 71 5Elr SERVICE MANUAL 9 4 2002 file D PC 20AOC SERVICE 20MANUAL HP D8905A S761V D8905A htm ...

Page 29: ...8 D922 93A 3020 6C 52T FAST RECOVERY DIODE D923 93A 3020 8 RG 4Z LF L1 D925 93A 3020 6C 52T FAST RECOVERY DIODE DF925 71A 55 2 FERRITE BEAD H802 95A 8013 10 502 WIRE H803 95A 8013 6 1 WIRE H804A 95A 8013 11 501 5 11PIN H804B 95A 8013 11 501 5 11PIN IC104 56A 74LS 14 H 14 PIN IC 74LS14 IC901 56A 379 12 8 PIN IC UC3842AM IC401 56A 573 1 TDA9111 L400 73A 253 111 T CHOKE COIL L401 73A 147 117 L LINEAR...

Page 30: ... 331 59 330 OHM 5 3W R457 61A 153M 560 59 56 OHM 5 3W R458 61A 153M 560 59 56 OHM 5 3W R608 61A 152M 479 64 4 7 OHM 5 2W R723 61A 152M 101 64 100 OHM 5 2W R907 61A 208 471 64 470 OHM 5 1W R927 61A 153M 333 59 33K OHM 5 3W R929 61A 152M 278 64 0 27 OHM 5 2W R936 61A 303 228 64 0 22 OHM 5 1W R989 61A 152M 471 64 470 OHM 5 2W R991 61A 153M 560 59 56 OHM 5 3W Page 32 of 71 5Elr SERVICE MANUAL 9 4 2002...

Page 31: ... C103 65A 450 104 7T 0 1uF 80 20 Y5V 50V C104 67A 309 101 4T 100uF 20 25V C105 65A 450 104 7T 0 1uF 80 20 Y5V 50V C106 67A 309 330 7T 33UF 20 50V C109 67A 60 229 7T 2 2UF 50V C110 67A 309 109 7T 1 0uF 20 50V C111 65A 444 101 5T 100PF 10 Y5P 50V C112 65A 444 101 5T 100PF 10 Y5P 50V C113 65A 444 101 5T 100PF 10 Y5P 50V C114 65A 444 101 5T 100PF 10 Y5P 50V C130 65A 442 470 13T 47PF 5 50V NPO C140 67A...

Page 32: ... 65A 450 104 7T 0 1Uf 80 20 Y5V 50V C169 67A 305 101 3T 100UF 20 16V C170 65A 442 121 13T 120PF 50V NPO 5 C171 67A 305 100 7T 10uF 20 50V C172 65A 444 102 13T 1000PF 10 Y5P 50V C401 65A 442 120 13T 12PF 50V NPO C403 64A 44J 223 1AT 22NF 100V C406 65A 450 104 7T 0 1Uf 80 20 Y5V 50V C407 65A 444 101 5T 100PF 10 50V Page 34 of 71 5Elr SERVICE MANUAL 9 4 2002 file D PC 20AOC SERVICE 20MANUAL HP D8905A...

Page 33: ...3 1AT 0 01UF 5 100V C464 65A 444 821 5T 820PF 10 50V C466 64A 176J 822 1T 8200PF 5 100V C467 65A 450 103 7T 10000uF 80 20 Y5V 50V C470 65A 444 332 5T 3300PF 10 50V C481 65A 450 104 7T 0 1uF 80 20 Y5V 50V C601 64A 176J 104 1T 0 1UF 5 100V C602 65A 444 331 5T 330PF 10 50V C603 67A 309 471 3T 470UF 20 16V C604 64A 176J 224 0T 0 22UF 63V 5 C605 67A 309 470 7T 47UF 20 50V C610 64A 701J 474 0AT 0 47UF 5...

Page 34: ... 1000PF 100V C921 64A 176J 104 1T 0 1uF 5 100V C922 64A 176J 104 1T 0 1uF 5 100V C923 65A 1K 331 5T 330PF 1KV 10 C924 64A 176J 332 1T 0 0033UF 5 100V C925 67A 309 100 7T 10uF 20 50V C938 67A 305 471 3T 470uF 20 16V C941 64A 701J 104 0AT 0 1uF 50V C943 64A 44J 152 1AT 1500PF 100V Page 36 of 71 5Elr SERVICE MANUAL 9 4 2002 file D PC 20AOC SERVICE 20MANUAL HP D8905A S761V D8905A htm ...

Page 35: ...A 1060 6 52T BYV26C D407 93A 60 21P 52T DIODE PS156R D410 93A 64 11 52T DIODE IN4148 D411 93A 64 19G 52T BAV21 D412 93A 64 11 52T DIODE IN4148 D418 93A 60 21P 52T PS156R D419 93A 60 21P 52T PS156R D432 93A 64 11 52T DIODE IN4148 D433 93A 64 11 52T DIODE IN4148 D450 93A 64 11 52T DIODE IN4148 D460 93A 64 11 52T DIODE IN4148 D463 93A 60 26T 52T FR107 D470 93A 60 26T 52T FR107 D471 93A 64 11 52T DIOD...

Page 36: ... IN4148 D917 93A 64 11 52T DIODE IN4148 D918 93A 1060 6 52T BYV26C D926 93A 64 11 52T DIODE IN4148 D927 93A 64 11 52T DIODE IN4148 D929 93A 1040 2 52T UF4004 D930 93A 1040 2 52T UF4004 D939 93A 64 11 52T DIODE IN4148 D967 93A 64 11 52T DIODE IN4148 D968 93A 64 11 52T DIODE IN4148 D990 93A 64 11 52T DIODE IN4148 D991 93A 64 11 52T DIODE IN4148 ...

Page 37: ...A 90 23 TIN COATED J014 95A 90 23 TIN COATED J015 95A 90 23 TIN COATED J016 95A 90 23 TIN COATED J017 95A 90 23 TIN COATED J018 95A 90 23 TIN COATED J019 95A 90 23 TIN COATED J022 95A 90 23 TIN COATED J023 95A 90 23 TIN COATED J024 95A 90 23 TIN COATED J026 95A 90 23 TIN COATED J027 95A 90 23 TIN COATED J028 95A 90 23 TIN COATED J030 95A 90 23 TIN COATED J031 95A 90 23 TIN COATED J032 95A 90 23 TI...

Page 38: ...OATED J052 95A 90 23 TIN COATED J053 95A 90 23 TIN COATED J055 95A 90 23 TIN COATED J056 95A 90 23 TIN COATED J057 95A 90 23 TIN COATED J058 95A 90 23 TIN COATED J059 95A 90 23 TIN COATED J060 95A 90 23 TIN COATED J062 95A 90 23 TIN COATED J063 95A 90 23 TIN COATED Page 40 of 71 5Elr SERVICE MANUAL ...

Page 39: ...95A 90 23 TIN COATED J088 61A 172 102 52T 1K OHM 5 1 4W J089 95A 90 23 TIN COATED J090 95A 90 23 TIN COATED J091 95A 90 23 TIN COATED J092 95A 90 23 TIN COATED J093 95A 90 23 TIN COATED J094 95A 90 23 TIN COATED J096 95A 90 23 TIN COATED J097 95A 90 23 TIN COATED J098 95A 90 23 TIN COATED J100 95A 90 23 TIN COATED J101 95A 90 23 TIN COATED J106 95A 90 23 TIN COATED J107 95A 90 23 TIN COATED J109 9...

Page 40: ...8 95A 90 23 TIN COATED J129 95A 90 23 TIN COATED J130 95A 90 23 TIN COATED J131 95A 90 23 TIN COATED J132 95A 90 23 TIN COATED J133 95A 90 23 TIN COATED J134 95A 90 23 TIN COATED J135 95A 90 23 TIN COATED J136 95A 90 23 TIN COATED J137 95A 90 23 TIN COATED J138 95A 90 23 TIN COATED ...

Page 41: ...5A 90 23 TIN COATED JUM3 95A 90 23 TIN COATED JWT1 95A 90 23 TIN COATED JWT2 95A 90 23 TIN COATED JWT3 95A 90 23 TIN COATED L101 73A 54 339 10T 3 3UH 10 L102 73A 54 220 5T 22UH L402 95A 90 23 TIN COATED L406 95A 90 23 TIN COATED L907 95A 90 23 TIN COATED Q101 57A 420 SG T TR KSA733C G Q401 57A 420 SG T TR KSA733C G Q402 57A 731 1A T TR 2SK2962 Q404 57A 420 SG T TR KSA733C G Q405 57A 420 SG T TR KS...

Page 42: ...SC1213AC Q903 57A 419 SG T KSC945C G Q905 57A 420 SG T TR KSA733C G Q908 57A 419 SG T KSC945C G Q910 57A 419 SG T KSC945C G Q912 57A 446 1 T TR 2SC1213AC Q913 57A 419 SG T KSC945C G Q918 57A 446 1 T TR 2SC1213AC Q920 57A 619 1 T TR 2SA673AC Q921 57A 446 1 T TR 2SC1213AC Q990 57A 419 SG T KSC945C G Page 44 of 71 5Elr SERVICE MANUAL ...

Page 43: ...1 6W R130 61A 602 472 52T 4 7K OHM 5 1 6W R131 61A 602 472 52T 4 7K OHM 5 1 6W R132 61A 602 101 52T 100 OHM 5 1 6W R133 61A 602 472 52T 4 7K OHM 5 1 6W R135 61A 602 152 52T 1 5K OHM 5 1 6W R136 61A 602 222 52T 2 2K OHM 5 1 6W R138 61A 602 103 52T 10K OHM 5 1 6W R139 61A 602 102 52T 1K OHM 5 1 6W R140 61A 602 331 52T 330 OHM 5 1 6W R141 61A 602 222 52T 2 2K OHM 5 1 6W R143 61A 602 101 52T 100 OHM 5...

Page 44: ...00 OHM 5 1 6W R172 61A 602 101 52T 100 OHM 5 1 6W R173 61A 172 470 52T 47 OHM 5 1 4W R174 61A 602 102 52T 1K OHM 5 1 6W R175 61A 602 202 52T 2K OHM 5 1 6W R180 61A 602 362 52T 3 6K OHM 5 1 6W R181 61A 602 152 52T 1 5K OHM 5 1 6W R182 61A 602 331 52T 330 OHM 5 1 6W R186 61A 602 202 52T 2K OHM 5 1 6W R401 61A 172 205 52T 2M OHM 5 1 4W R402 61A 172 222 52T 2 2K OHM 5 1 4W ...

Page 45: ...72 622 52T 6 2K OHM 5 1 4W R433 61A 602 102 52T 1K OHM 5 1 6W R434 61A 602 392 52T 3 9K OHM 5 1 6W R436 61A 602 681 52T 680 OHM 5 1 6W R438 95A 90 23 TIN COATED R440 61A 172 512 52T 5 1K OHM 5 1 4W R441 61A 175L 683 52T 68K OHM 5 1 2W R442 61A 175L 102 52T 1K OHM 5 1 2W R443 61A 172 473 52T 47K OHM 5 1 4W R444 95A 90 23 TIN COATED R447 61A 172 103 52T 10K OHM 5 1 4W R450 61A 602 103 52T 10K OHM 5 ...

Page 46: ...K OHM 5 1 4W R613 61A 172 102 52T 1K OHM 5 1 4W R616 61A 602 101 52T 100 OHM 5 1 6W R707 61A 602 472 52T 4 7K OHM 5 1 6W R708 61A 172 103 52T 10K OHM 5 1 4W R709 61A 602 103 52T 10K OHM 5 1 6W R710 61A 602 103 52T 10K OHM 5 1 6W R711 61A 602 103 52T 10K OHM 5 1 6W R712 61A 602 273 52T 27K OHM 5 1 6W R713 61A 602 562 52T 5 6K OHM 5 1 6W R714 61A 172 121 52T 120 OHM 5 1 4W ...

Page 47: ...2W R748 61A 602 223 52T 22K OHM 5 1 6W R749 61A 602 104 52T 100K OHM 5 1 6W R750 95A 90 23 TIN COATED R751 61A 602 122 52T 1 2K OHM 5 1 6W R770 61A 172 333 52T 33K OHM 5 1 4W R771 61A 172 102 52T 1K OHM 5 1 4W R772 61A 602 102 52T 1K OHM 5 1 6W R780 61A 602 105 52T 1M OHM 5 1 6W R781 61A 602 823 52T 82K OHM 5 1 6W R782 61A 602 563 52T 56K OHM 5 1 6W R783 61A 210 822 52T 8 2K OHM 1 1 6W R784 61A 60...

Page 48: ...1A 172 151 52T 150 OHM 5 1 4W R938 61A 172 220 52T 22 OHM 5 1 4W R939 61A 172 203 52T 20K OHM 5 1 4W R940 61A 171 393 52T 39K OHM 2 1 4W R941 61A 172 151 52T 150 OHM 5 1 4W R942 61A 172 680 52T 68 OHM 5 1 4W R944 61A 172 512 52T 5 1K OHM 5 1 4W R951 61A 172 221 52T 220 OHM 5 1 4W R952 61A 172 473 52T 47K OHM 5 1 4W R953 61A 172 303 52T 30K OHM 5 1 4W ...

Page 49: ...4W R981 61A 175L 101 52T 100 OHM 5 1 2W R982 61A 172 103 52T 10K OHM 5 1 4W R983 61A 172 103 52T 10K OHM 5 1 4W R985 61A 172 331 52T 330 OHM 5 1 4W R986 61A 175L 106 52T 10M OHM 5 1 2W R988 61A 172 223 52T 22K OHM 5 1 4W R992 61A 602 222 52T 2 2K OHM 5 1 6W R993 61A 172 103 52T 10K OHM 5 1 4W R994 61A 172 103 52T 10K OHM 5 1 4W R995 61A 172 393 52T 39K OHM 5 1 4W R996 61A 602 103 52T 10K OHM 5 1 6...

Page 50: ...7 67A 305 479 10 4 7UF 160V 20 G2 9A 203 8 BRASS PIN GND 9A 203 8 BRASS PIN IC801 56A 539 2 LM1279N P801 33A 3278 12A PLUG P802 33A 3278 10 10P PLUG P803 33A 3278 6 6P PLUG P804 33A 3278 11 11P PLUG R807 61A 208 390 64 39 OHM 1W 5 R859 61A 152M 101 64 100 OHM 2W 5 ...

Page 51: ...830 67A 70 478 9T 0 47uF 100V NP C831 67A 309 109 9T 1UF 20 100V C832 67A 309 109 9T 1UF 20 100V C833 67A 309 109 9T 1UF 20 100V C834 65A 450 103 3T 0 01Uf 80 20 50V C836 65A 1K 222 2T 0 0022Uf 10 1KV C841 65A 450 104 7T 0 1UF 50V 80 20 C842 65A 450 104 7T 0 1UF 50V 80 20 C843 65A 450 104 7T 0 1UF 50V 80 20 C860 65A 450 103 7T 10000PF 50V 80 20 C861 65A 517K 102 2T 1000PF 10 500V C862 65A 517K 221...

Page 52: ...TCH DIODE D816 93A 64 31T 26T SWITCH DIODE D817 93A 52 9T 52T 2A 600V D840 93A 64 11 52T DIODE IN4148 D841 93A 64 11 52T DIODE IN4148 D842 93A 64 11 52T DIODE IN4148 FB804 71A 55 19 T BEAD FB815 71A 55 19 T BEAD J801 95A 90 23 TIN COATED J802 95A 90 23 TIN COATED J803 95A 90 23 TIN COATED Page 54 of 71 5Elr SERVICE MANUAL ...

Page 53: ...T TR BF422 Q830 57A 498 1 T TR BF423 Q831 57A 498 1 T TR BF423 Q832 57A 498 1 T TR BF423 R801 61A 602 750 26T 75 OHM 5 1 6W R802 61A 602 750 26T 75 OHM 5 1 6W R803 61A 602 750 26T 75 OHM 5 1 6W R804 61A 602 300 26T 30 OHM 5 1 6W R805 61A 602 300 26T 30 OHM 5 1 6W R806 61A 602 300 26T 30 OHM 5 1 6W R808 61A 602 102 52T 1K OHM 5 1 6W R809 61A 172 225 26T 2 2M OHM 5 1 4W R810 61A 602 101 26T 100 OHM ...

Page 54: ...72 223 26T 22K OHM 5 1 4W R845 61A 172 222 26T 2 2K OHM 5 1 4W R846 61A 172 224 26T 220K OHM 5 1 4W R847 61A 172 224 26T 220K OHM 5 1 4W R848 61A 172 224 26T 220K OHM 5 1 4W R849 61A 172 224 26T 220K OHM 5 1 4W R850 61A 172 224 26T 220K OHM 5 1 4W R851 61A 172 224 26T 220K OHM 5 1 4W R855 61A 175L 101 52T 100 OHM 5 1 2W R856 61A 175L 101 52T 100 OHM 5 1 2W ...

Page 55: ... 2 2K OHM 5 1 6W R888 61A 602 222 52T 2 2K OHM 5 1 6W R891 61A 602 102 52T 1K OHM 5 1 6W R892 61A 602 102 52T 1K OHM 5 1 6W R893 61A 602 102 52T 1K OHM 5 1 6W R894 61A 602 561 52T 560 OHM 5 1 6W R895 61A 602 561 52T 560 OHM 5 1 6W R896 61A 602 561 52T 560 OHM 5 1 6W ZD801 93A 39 514 52T HZ9A3 LOCATION PARTS No SPECIFICATION 90A 315 500 HEAT SINK M1A 1730 8 128 SCREW IC802 56A 551 2 LM2439 LOCATION...

Page 56: ...P122 LOCATION PARTS No SPECIFICATION 5A 42 501 NYLON WASHER 12A 372 1 SILICONE RUBBER 90A 348 3 HEAT SINK M1A 1730 10 128 SCREW Q901 57A 724 2 TR 2SK3115 LOCATION PARTS No SPECIFICATION 5A 42 501 NYLON WASHER 12A 372 1 SILICONE RUBBER 90A 231 2 HEAT SINK M1A 1730 8 128 SCREW Q911 57A 600 504 IRF634A LOCATION PARTS No SPECIFICATION 5A 42 501 NYLON WASHER 12A 372 1 SILICONE RUBBER 90A 360 1 HEAT SIN...

Page 57: ...ARTS No SPECIFICATION 9A 203 9 PIN NR901 61A 58 8T L NTC SCK 152X LOCATION PARTS No SPECIFICATION 95A 205S 354 043 WIRE CORE ASS Y 96A 29 6 190 H S TUBING CN901 87A 501 5 RECEPTACLES 0714 LOCATION PARTS No SPECIFICATION 71A 55 2 FERRITE BEAD 90A 360 501 HEAT SINK D919 93A 60 73A 3A 400V 31DF4 ...

Page 58: ...C105 56A 1131 503 MTV018N04 X101 93A 22 43 12 0 MHZ LOCATION PARTS No SPECIFICATION 750A 5866 3AV LG 27 17 CRT MPRII C450 95A 90 23 TIN COATED C480 95A 90 23 TIN COATED R490 61A 210 273 52T 27K OHM 1 1 6W R607 61A 208 828 64 0 82 OHM 1W TP403 95A 201F 50 162 PULSE LOCATION PARTS No SPECIFICATION 750A 5868 3AV LG 27 17 S ART TCO C450 65A 1K 101 5T 100PF 1KV 10 C480 65A 517M 103 3A 0 01UF 20 500V CL...

Page 59: ...02H TDA9111 IC802 Q404 Q405 Q406 Q909 Q910 Q907 Q908 LM1279N IC401 IC801 Q403 T402 FBT Q402 T401 IC601 EHT VERT HOR OSC HOR O P G1 G2 FOCUS PRE AMP HOR DRIVER X RAY PROTECTION PINCUSHION VERT O P CONTROL 25KV H V BLANKING CIRCUIT H SIZE CONTROL SAVING POWER HV CPU IC101 CRT B G R B G R CABLE SIGNAL ...

Page 60: ...06 R929 RY901 90V 264V IC101 CPU FROM Q913 Q911 OUTPUT B VARIABLE MOSFET POWER VARI SMOOTHED SMOOTHED RECTIFIED RECTIFIED OUTPUTS 4 CONTROL H O T FROM C K T H SYNC H SYNC Is O P F B VCC MOSFET POWER Q901 8 3 6 2 7 IC901 PWM O P CONTROL C K T START AC INPUT FILTER LINE SWITCH ON OFF POWER C K T DEGAUSSING VIN SMOOTHED SMOOTHED RECTIFIED RECTIFIED TRANSFORMER TRANSFORMER POWER ...

Page 61: ... VSYNC0 P05 DAC13 P04 DAC12 P03 DAC11 P02 DAC10 P01 DAC9 P00 DAC8 P31 SCL P30 SDA P20 P21 P22 P23 P24 P25 P26 P27 P16 INTE P10 AD0 P11 AD1 P12 HALFH0 P13 HALFH1 CE P14 P15 OSC1 OSC0 VDD DAC0 DAC1 DAC2 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 40 GND RESET_ IC101 25 24 23 22 21 20 19 18 17 16 26 27 28 29 ...

Page 62: ...cc XRAY H HVIN TDA9111 IC401 7bits Spin Bal 1 17 19 11 25 29 PROCESSOR SAFETY 26 7 8 6 5 12 4 BUFFER HOUT 7 bits H DUTY SHIFTER PHASE COMPARATOR PHASE PROCESSOR SYNC SELECT SYNC INPUT IDENTIFICATION LOCK UNLOCK VCO H PHASE 7 bits COMPARATOR PHASE FREQUENCY ...

Page 63: ...5 14 13 12 11 WB WG WR VCLKX BLINK 7 CH 8 HORD 8 VERTD VSP HSP OSDENB SHADOW BSEN CONTROL FRAME WINDOWS LPN 9 DADDR 5 RCADDR VCLKS CWS BORDER LUMA GENERATOR BORDGER LUMINANCE CHARACTER ROM CRADDR DATA CHS CWS BLINK REGISTERS CONTROL VCLKX HDREN ARWDB HORD HSP 8 7 VERTD CHS CH VSP NROW VDREN HDREN 8 DATA ENCODER COLOUR HORIZONTAL VERTICAL ADMINISTRATOR ADDRESS BUS INTERFACE BLANK FBKGC VDREN NROW 5...

Page 64: ... GENERATOR FLYBACK HV GENERATOR 4 8 VSS VCC SCL SDA 6 5 WP 7 R W CONTROL SENSE AMP YDEC XDEC PAGE LATCHES 128X8 EEPROM ARRAY MEMORY LOGIC LOGIC CONTROL CONTROL I O IC102 24C04 LM2438 LM2439 4 3 2 5 6 7 8 9 IC802 Vout 1 Vout 2 Vout 3 VCC GND Vin 3 Vin 2 VBB Vin 1 1 ...

Page 65: ...NTRAST 1 35V SANDCASTLE SYNC BLUE DRIVE BLUE OUT GREEN DRIVE GREEN OUT VCC2 RED DRIVE RED OUT BLUE OSD IN GREEN OSD IN 11 12 13 14 15 16 17 18 19 20 A3 A3 A3 VID CONTRAST B CLAMP CAP BLUE VIDEO IN 10 9 8 G CLAMP CAP GROUND 7 6 GREEN VIDEO IN 5 gml gml gml R CLAMP CAP 4 1 2 RED OSD IN VCC RED VIDEO IN 3 A1 A1 A1 A2 A2 A2 ATTENUATOR ATTENUATOR ATTENUATOR 12dB DRIVE 12dB DRIVE 12dB DRIVE ATTENUATOR A...

Page 66: ......

Page 67: ...11 2 CRT BOARD LAYOUT Page 70 of 71 5Elr SERVICE MANUAL ...

Page 68: ...D105 FB101 R120 R118 R119 R116 R113 R114 R115 R112 R135 R165 R130 R131 R133 R123 R111 P29 R136 JWT3 R132 H804B FB405 L907 FB903 C145 C995 TP403 C732 D995 R996 R995 P28 D410 R450 C113 C112 C114 D401 R172 R109 C929 D918 R108 R157 RY401 R918 R917 R156 R124 L402 C705 C476 R707 P21 C150 J096 RA101 C140 C430 R146 H804A R182 Q710 C940 R775 CN903 Q905 Q903 C908 R907 R908 R909 R910 Q902 R906 R905 R902 Q402...

Page 69: ...FB903 C145 C995 D995 R996 R995 C113 C112 C114 R172 R109 C929 D918 R108 R157 R918 R917 R156 R124 L402 C150 RA101 C140 R146 H804A R182 Q710 C940 R775 Q905 Q903 C908 R907 R908 R909 Q902 R906 R905 R902 D448 R912 P15 J016 D104 ZD939 P13 D106 C160 C163 R186 J142 J143 C162 J075 R148 C967 C161 C130 D968 R102 H601 Q923 D912 R101 C750 R923 ZD430 R992 R106 D107 C111 D991 C467 C420 R994 4 98 4 98 4 98 4 98 4 ...

Page 70: ...L810 L811 R887 R873 D842 R894 D840 D406 R896 D841 P804 C862 C417 C823 C886 R868 R867 R866 R833 C843 Q823 R842 Q832 C842 Q822 R841 R832 C861 C860 R776 FB405 P28 Q402 D607 FOCUS1 R751 R739 C743 C742 Q741 R612 C608 1N4148 63V 0 22 1 6KV 6200 100V 4700 BF423 1 2W 180 1 2W 1 5 100K 1 2W 56K 22K 1 2W 56K PS156R 1 2W 56K 57A493 10 T 1N4148 680 1 4W 1K 3W 0 82 1 2W 22 3W 22 1 4W 100K 1 2W 1K 3K3 95A90 23 ...

Page 71: ...614 C611 R497 C616 R616 R920 ZD405 R143 FB401 R438 C449 D412 R432 R614 C609 R610 R611 R420 R419 JUM3 JUM1 JWT1 JWT2 JUM2 C961 Q401 FB101 R116 R115 R112 R135 R165 R130 R131 R133 R123 P29 R136 JWT3 L907 FB903 C995 D995 R996 R995 C113 C112 C114 R109 C929 D918 R108 R157 R918 R917 R156 R124 L402 C150 J096 H804A R182 C940 CN903 Q905 Q903 C908 R907 R908 R909 R910 Q902 R906 R905 R902 D448 R912 J016 D104 Z...

Page 72: ...33 1 6KV 6200 1KV 4300 100V 4700 4 7NF 400V 0 43 250V 0 1 100V 2 2U 1KV 120 1 1 2W 68K 1 1 4W 4K3 3K9 1 27K 680 1 2W 180 1 2W 1 5 100K 1 2W 56K 22K 1 2W 56K PS156R 1 2W 56K 57A493 10 T 1N4148 680 1 4W 1K 3W 0 82 1 2W 22 3W 22 1 4W 100 20K 100 3W 100 73A253 117 1 4W 47K 250V 0 64 3W 56 3W 56 1 4W 100K 1 2W 1K 3K3 2W 100 1 4W 1M 95A90 23 1 4W 560 1K 95A90 23 10K 5K6 10K 27K 10K 10K 95A90 23 10K 95A9...

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