THOMSON 42WM03ST Service Manual Download Page 3

Page: 3 / 55

First issue 10 / 04

Page

SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

DISASSEMBLY

Removing the leg tube assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Removing the rear cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Removing the filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

TROUBLESHOOTING

No power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

No picture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Vertical line fail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Horizontal line fail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

No command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

ADJUSTMENTS

Power (PLG-421) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Power (DGK-420W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Color temperature in DVI mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Color temperature in RGB mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

APPENDIX A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

SCHEMATIC DIAGRAMS

Tuner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 - 32

Main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 - 51

SPECIAL MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 - 53

EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

CONTENTS

Summary of Contents for 42WM03ST

Page 1: ...zul ssig Alle Rechte vorbehalten I diritti di riproduzione di traduzione e esecuzione sono riservati per tutti i paesi Derechos de reproduccion de traduccion de adaptacion y de ejecucion reservados p...

Page 2: ...elected PR 01 DC voltages measured between the point and earth using a digital voltmeter EMPF NGER Bei UHF Eingangspegel 1 mV Farbbalken PAL Norm G Weiss 100 ber die Scartbuchse Eingangspegel 1 Vss Fa...

Page 3: ...No power 10 No picture 11 Vertical line fail 12 Horizontal line fail 13 No command 14 ADJUSTMENTS Power PLG 421 15 Power DGK 420W 16 Color temperature in DVI mode 16 Color temperature in RGB mode 18...

Page 4: ...and the cabinet mask 2 excessively wide cabinet ventilation slots and 3 an improperly fitted and or incorrectly secured cabinet back cover c Leakage Current Hot Check With the instrument completely r...

Page 5: ...protection c Some Projection Monitor chassis have a secondary ground system in addition to the main chassis ground This secondary ground system is not isolated from the AC power line Insulating mater...

Page 6: ...pecification of screw driver is 15 2kg see fig 1 Push the Leg Tube Assembly downward to unlock and pull it away from unit then unscrew 4 screws from rear cover Specification of screw driver is 15 2 kg...

Page 7: ...r cover and unscrew 2 screws from AC power socket see red arrow Specification of screw driver is 9 1 kg Unscrew 4 screws from rear cover see red circle Specification of screw driver is 15 2 kg 3 Remov...

Page 8: ...mask Specification of screw driver is 15 2 kg then remove four angles that hold the PDP filter Be careful Please do not bump or scrape when handling the PDP filter Before putting panel back clean PDP...

Page 9: ...aim at red arrow to guide and there is have a channel when you put down glass back to new mask Assemble 4 irons back to mask Be careful When you lock up 4 irons that screws should be to lock up on SL...

Page 10: ...10 First issue 10 04 TROUBLESHOOTING No power Switch the power on Check Power Switch module Not correct Correct Replace Power Switch module Replace Main Power module End End...

Page 11: ...First issue 10 04 11 No picture Check Image board Not correct Correct Replace Image board Replace PDP module End End...

Page 12: ...12 First issue 10 04 Vertical line fail Check XR Board Check Logic Board Not correct Correct Not correct Correct Replace XR Board Replace Logic Board Replace PDP module End End End...

Page 13: ...oard Check Y DRV Top Not correct Correct Not correct Correct Replace Y SUS Board Replace Y DRV Top Replace PDP module End Check Z SUS Board Not correct Correct Replace Z SUS Board End End Check Y DRV...

Page 14: ...mand Switch the power on Check remote control Check Front Button Control Board Not correct Correct Not correct Correct Replace the battery or the remote control Replace Front Button Control Board Repl...

Page 15: ...Variable Resistor RV204 value to the VA value recorded on the Panel Voltage Label 0 5VDC VA 0 5VDC value adjusted 4 Connect Digital Voltage Meter to Panel GND Connect Digital Voltage Meter to Plug CN8...

Page 16: ...oltage Label 0 5VDC VA 0 5VDC value adjusted 4 Connect Digital Voltage Meter to Panel GND Connect Digital Voltage Meter to Plug CN806 Pin 1 and adjust the VS Variable Resistor value to the VS value re...

Page 17: ...ht level and R G B The OSD menu for color temperature factory setting can be viewed by following the Factory Setting Procedure Factory Setting Procedure A Press Zoom key for over 5 seconds and release...

Page 18: ...to Y 0 4 4 When you want to go ahead for next color temperature setting double check the Gamma values make sure GAIN Gamma and BIAS Gamma values are correct and then press the ok key in remote contro...

Page 19: ...298 15FL D Adjust R G B BIAS make sure the final value x 308 15FL y 298 15FL Y 0 5FL 0 1FL 3 7180K bright level center block adjustment procedure Please set Astro VG 828H RGB bright level center block...

Page 20: ...u are the factory default setting values The factory default setting values differ from each PDP panel module 6 Put the color analyzer CA 100 in the center of the screen 3 2 Adjusting procedure 1 Rece...

Page 21: ...AV YPBPR need color temperature setting there are 3 different color temperatures 7180K 8680K and 10180K in each mode Each color temperature needs to adjust dark level bright level and R G B The OSD m...

Page 22: ...setting please repeat the procedure 1 3 Only x and y value will change in different color temperature mode in 8680K x 288 y 301 in 10180K x 270 y 292 and Y values are all the same in each color tempe...

Page 23: ...500 9 800 SVGA x600 85 53 7 85 06 56 250 10 1024 XGA x768 60 48 4 60 01 65 000 11 1024 XGA x768 70 56 5 70 07 75 000 12 1024 XGA x768 75 60 0 75 03 78 750 13 1024 XGA x768 85 68 7 84 99 94 500 14 128...

Page 24: ...1040 1056 1048 Dots Horizontal front porch 16 24 16 56 24 40 56 16 32 Dots Horizontal sync 96 40 64 56 72 128 120 80 64 Dots Horizontal back porch 48 128 120 80 128 88 64 160 152 Dots Horiz blanking...

Page 25: ...476 60 023 68 677 63 981 79 976 91 146 31 469 31 469 kHz Vertical frequency 60 004 70 069 75 029 84 997 60 020 75 025 85 024 70 087 50 030 Hz Vertical sync polarity TTL Horiz sync polarity TTL Mode N...

Page 26: ...Module Board with Tuner Assy CN802 CN809 J11 5V SB DET Logic Board JA2 J28 CN803 Audio DC Supply J14 J21 JA3 Audio Signal CN801 Main Power Y SUS AC Filter JP5 5V AC_IN JP2 Front Button Control Board A...

Page 27: ...M Philips UOC R TA1287P G B RGB TO YUV Y2 CB2 CR2 R G FB SCART B Y Comb filter C TDA9181 TV_CVBS 74HC211 HOUT VDRA 74HC4538 TV_CVBS S VIDEO TUNER TU1 ICT5 ICT6 ICT8 ICT9 ICT7 CVBSO U48 49 U50 51 U25 2...

Page 28: ...180 0 1uF 16V T CT64 100PF 50V ZDT1 UDZ3 0B DT8 RLS4148 RT208 15K 1 16W CT56 2 2uF 50V CT43 0 1uF 16V CT12 0 01uF 50V RT19 2 2K 1 16W T CT35 100PF 50V CT40 3 3uF 50V RT36 3 3K 1 16W CT73 1000PF 50V CT...

Page 29: ...uF 16V RT83 N 75 1 16W JT3D P1159 1 4 C 6 5 FET9 RFILN1020 1 A 1 2 3 RT68 100 1 16W R0603 FBT6 120 RT86 47K 1 16W ST1B P1177 1 A 7 8 CT82 1000PF 50V ZDT8 UDZ5 1B CT95 1000PF 50V FB4 120 T CT99 100PF 5...

Page 30: ...00 1 16W RT201 1K 1 16W RT195 0 1 16W T CT141 33PF 50V CT100 10uF 50V CT128 0 022uF 50V CT137 0 1uF 16V RT96 0 1 16W RT110 470 1 16W RT139 470 1 16W CT159 0 1uF 16V CT108 0 022uF 50V P LT8 10uH T CT13...

Page 31: ...50V T CT201 68PF 50V RT131 5 1K 1 16W T CT153 N 180PF 50V P LT19 15uH CT151 1uF 50V CT177 47uF 16V RT107 N 150K 1 16W RT132 3 3K 1 16W RT147 N 0 1 16W RT148 39K 1 16W RT141 2 7K 1 16W RT155 1K 1 16W...

Page 32: ...16W RT192 N 0 1 16W CT161 1000PF 50V FBT2 120 RT106 N 0 1 16W RT157 0 1 16W RT156 N 0 1 16W JPT1B CP1615 148 B C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 FBT1 120 RT168 0 1 16W JPT2B CP161...

Page 33: ...uF 25V Z R34 22K 1 16W R70 0 1 16W R9 47 1 16W R33 33 1 16W T C17 120PF 50V R20 33 1 16W TP3 RT6 N 560K 1 16W R344 0 1 16W LD002 N LED T C375 120PF 50V R1 10K 1 16W U8 EM83010 18 10 11 12 13 14 15 16...

Page 34: ...V T C30 100PF 50V D52 N RLS4148 TP10 T C35 180PF 50V R314 N 0 1 16W R54 22 1 16W R62 0 1 16W TP11 R55 N 1K 1 16W D53 N RLS4148 R58 1K 1 16W R57 N 1K 1 16W C44 N 0 1uF 25V Z TP12 C41 N 10uF 16V RP12 10...

Page 35: ...B A B G 1Y 2Y 3Y 4Y VCC GND R78 33 1 16W C50 0 1uF 25V Z T C404 22PF 50V R77 33 1 16W R386 150 1 16W R79 33 1 16W FROM CPU POCLK CLK POCLKOSD P 2 PLLCLK P 1 PLLDATA P 1 CLK P 5 6 POCLK P 4 5 D D D D D...

Page 36: ...21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 VCC GND BSEL SCL DSEL SDA ISEL RST VCC MSEN PD EDGE HTPLG CTL3 A3 DK3 VSYNC HSYNC VREF DE GND PVCC2 D11 D10 D9 D8 D7 D6...

Page 37: ...TP47 RP43 10K ohm 1 8 2 7 3 6 4 5 C74 0 1uF 25V Z R96 0 1 16W TP48 C82 0 1uF 25V Z U24B 74LVT04 3 4 14 7 U22 74LVC157 2 3 5 6 11 10 14 13 1 15 4 7 9 12 16 8 1A 1B 2A 2B 3A 3B 4A 4B A B G 1Y 2Y 3Y 4Y V...

Page 38: ...23 24 27 28 29 30 31 32 20 19 14 36 18 17 16 15 35 34 33 37 2 3 5 6 8 9 11 12 39 40 42 43 45 46 48 49 1 25 7 44 26 50 10 47 4 13 38 41 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 AP BA LDQM UDQM CS RAS CAS WE C...

Page 39: ...9 51 52 53 122 123 63 73 83 93 103 113 119 121 33 34 43 48 50 54 64 74 84 94 104 114 120 112 111 110 109 108 107 106 105 102 101 100 99 98 97 96 95 92 91 90 89 88 87 86 85 82 81 80 79 78 77 76 75 72 7...

Page 40: ...V D2 RLS4148 C149 330PF 50V T C144 330PF 50V J24 T128A BJST 1 2 3 4 5 6 7 8 9 10 RP23 33 ohm 1 8 2 7 3 6 4 5 R138 10K 1 16W R122 33 1 16W C153 100PF 50V U33 AT24C21 1 2 3 4 5 6 7 8 A0 A1 A2 VSS SDA SC...

Page 41: ...1 16W R161 10K 1 16W R88 56K 1 16W R156 10K 1 16W R376 10 1 16W Q44 2SC2412KBQ R336 56K 1 16W C384 4 7uF 35V F14 RFILN1020 1 A 1 2 3 C168 0 01uF 50V R326 0 1 16W U35 AT24C21 1 2 3 4 5 6 7 8 A0 A1 A2...

Page 42: ...10 1 16W R193 N 10 1 16W U42 N HEF4053BT 12 13 2 1 5 3 6 11 10 9 14 15 4 16 7 8 X0 X1 Y0 Y1 Z0 Z1 INH A B C X Y Z VCC VEE GND R368 N 75 1 16W C203 22uF 16V C250 N 10uF 16V C208 N 2 2uF 50V R207 N 47K...

Page 43: ...I P 3A IC3 M52055FP 1 14 9 7 12 2 13 6 5 3 15 4 10 16 11 8 I P 1B I P 2B I P 3B CON 3 CON 2 CON 1 Vcc OUT 3 OUT 2 OUT 1 GND 1 GND 2 GND 3 I P 1A I P 2A I P 3A R250 220K 1 16W R256 1K 1 16W RT12 0 1 1...

Page 44: ...31 N 2SA1037KQ RT1 0 1 16W D54 0 1 8W R258 0 1 16W R322 N 0 1 16W R301 22K 1 16W R295 5 6K 1 16W U43 TA1276AF 72 70 69 67 65 64 63 62 61 59 58 57 54 53 52 50 49 47 46 45 43 42 41 40 38 37 35 34 73 74...

Page 45: ...47uF 16V U45 PNLTVP6730 89 88 87 86 85 84 83 82 79 78 77 76 75 74 73 72 71 70 69 68 65 64 63 62 61 60 59 58 57 56 55 54 119 120 121 122 123 124 127 128 129 130 131 132 133 134 135 136 137 138 139 142...

Page 46: ...15 47uF 16V CDSA6 0 01uF 50V T CDS10 100PF 50V T CDS25 100PF 50V RND1 22 ohm 1 8 2 7 3 6 4 5 CDS9 47uF 16V RDS23 10K 1 16W RND3 22 ohm 1 8 2 7 3 6 4 5 RDS24 N 0 1 16W T CDS20 N 68PF 50V RDS13 10K 1 16...

Page 47: ...21 18 DQ22 20 DQ23 21 DQ24 74 DQ25 75 DQ26 77 DQ27 78 DQ28 80 DQ29 81 DQ3 1 DQ30 83 DQ31 84 DQ4 3 DQ5 4 DQ6 6 DQ7 7 DQ8 60 DQ9 61 DQM0 23 DQM1 56 DQM2 24 DQM3 57 DSF 53 NC 95 NC VREF 58 NC 36 NC 37 NC...

Page 48: ...25V Z T CDS38 10PF 50V LDS5 0 1 8W RDS30 33 1 16W T CDS42 10PF 50V CDS55 0 1uF 25V Z CDS69 22uF 16V CDS65 0 01uF 50V CDS53 10uF 16V CDS61 0 01uF 50V CDS54 0 1uF 25V Z CDS45 10uF 16V CDS40 10uF 16V CD...

Page 49: ...Z U57 LD1085CM33 3 1 2 VIN GND VOUT CD91 0 1uF 25V Z CD94 22uF 16V CD99 22uF 16V C311 100uF 16V C319 0 1uF 25V Z LD22 0 1 8W LDS19 0 1 8W CDS95 0 1uF 25V Z CD82 22uF 16V C324 10uF 16V CDS85 0 1uF 25V...

Page 50: ...47uF 16V C350 0 1uF 25V Z C380 0 22uF 50V M R341 100 1 16W C200 0 22uF 50V M C378 1000PF 50V C47 N 1000PF 50V C239 47uF 16V C336 0 1uF 25V Z L26 10uH L28 L29 0 45uH C48 N 2 2uF 50V F26 0 1 8W C338 100...

Page 51: ...100 1 16W R146 75 1 16W D21 BAV99 1 3 2 RA353 0 1 16W CA158 N 100PF 50V CA174 N 0 01uF 50V R149 75 1 16W RA354 0 1 16W F7 0 1 8W RA158 N 100 1 16W R147 75 1 16W CA159 N 100PF 50V RA172 0 1 16W CA171...

Page 52: ...oordinates adjustment screens are succesively displayed for each 4 Inputs Validate and Go to next screen by pressing OK key Red Green Blue and White with PIP window in a different color screens are su...

Page 53: ...27 AGC 28 FSL 29 IF 30 SVO 31 SOSD 32 ACL 33 MUS 34 PWL 35 OIF 36 SCL 37 E2D 38 CB 39 BPS 40 FCO 41 OSVE 42 AFN 43 DFL 44 AKB 45 OPC 46 OPT INT Page UOC Service Menu 031128 1 31 1 1 0 0 0 0 1 3 0 0 0...

Page 54: ...BY POWER BOARD 8 AUDIO AMPLIFIER BOARD 9 RIGHT TOP SPEAKER HOLDER 10 SPEAKER 11 LEFT TOP SPEAKER HOLDER 12 RIGHT BOTTOM SPEAKER HOLDER 13 POWER SWITCH BOARD 14 ON OFF BUTTON 15 LEFT BOTTOM SPEAKER HO...

Page 55: ...i Alphonse Le Gallo 92648 Boulogne cedex Tel 01 41 86 60 00 Internet www thomson network com Thomson multimedia Sales UK Limited 30 Tower View Kings Hill West Malling Kent ME19 4NQ England Tel 44 0 17...

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