THOMSON 50WS94E Service Manual Download | Manualshive

Page: 14 / 34

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14

First issue 06 /02

VIDEO TROUBLESHOOTING

No picture

No

No

Yes

No

No

Yes

No

Yes

Yes

Replace AD, PD

and PH connector

Replace the MAIN module

Failure in the

MAIN module

Apply an NTSC grey scale

signal to the video input 1 cir-

cuit and select the video input 1

Is the on screen
display available

End

End

See page 9

Is the display normal?

Is the display normal?

Are the 170V, 70V and

D+5V signals availalble

on POWER module?

Failure in the PDP module

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Summary of Contents for 50WS94E

Page 1: ...mmung zulässig 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 para todos los paises WARNING Before servicing this chassis please read the safety recommendations ATTENTION Avant toute intervention sur ce châssis lire les recommandations de sécurité ACHTUNG Vo...

Page 2: ... selected PR 01 DC voltages measured between the point and earth using a digital voltmeter EMPFÄNGER Bei UHF Eingangspegel 1 mV Farbbalken PAL Norm G Weiss 100 Über die Scartbuchse Eingangspegel 1 Vss Farbbalken Farbe Kontrast Helligkeit in der Mitte des Bereichs Ton auf Minimum Zugeordnetes Programm PR 01 Gleichspannungen mit einem digitalen Voltmeter zur Masse gemessen RECEPTEUR En UHF niveau d ...

Page 3: ... No RGB signal 15 No HD DVD picture 15 No still pictures of PC 16 No interlace motion picture 16 No progressive motion picture 16 ADJUSTMENT 17 Power 18 Video screen position 18 DVD HD DTV screen position 18 RGB PC signal timing table 19 ADJUSTMENT LOCATION MAIN module 27 VIDEO module 28 POWER module 29 SUB module 29 BLOCK DIAGRAMS MAIN module 30 VIDEO module 31 WIRING DIAGRAM 32 CONTENTS ...

Page 4: ...assembly Remove the 32 screws and the 2 screws Unscrew the 8 screws around the audio video output and lift the back cover up 05 04 03 02 06 01 4 First issue 06 02 01 06 01 Fig 1 1 02 02 02 02 02 04 03 02 02 04 04 04 04 02 04 02 02 02 02 02 02 02 02 03 02 05 02 02 02 02 02 02 02 02 02 02 02 Fig 1 2 ...

Page 5: ... the 8 screws and remove the shield cover Remove the 2 screws and the metal bracket Unscrew the 8 screws disconnect F2 see fig 2 4 and remove the fans Remove the 12 screws 14 13 12 11 10 09 08 07 TOP 09 09 09 09 10 07 07 08 Fig 2 1 TOP AD 20 11 21 11 19 14 14 14 14 14 14 14 14 14 14 14 14 12 12 Fig 2 2 ...

Page 6: ...see fig 2 2 Disconnect SW and LE connectors Unscrew the screws and lift the ground terminal of AD connector Disconnect AD connector 19 21 18 17 20 16 15 TOP PI P A PV PQ PN PM PN LD PW AE SW RS PM PD F2 AD F1 T1 PH PW T4 LE LM RM AB AE RM LM SW RS AB PV PQ PC YU BU PC YU BU SY PL DS SY PL T1 T2 18 17 13 Fig 2 4 TOP AD 15 15 15 15 15 15 15 15 16 16 Fig 2 3 ...

Page 7: ...PM MAIN PWB PM Power unit PM CN PN MAIN PWB PN Power unit PN CN SY MAIN PWB SY VIDEO PWB SY CN BU MAIN PWB BU VIDEO PWB BU CN YU MAIN PWB YU VIDEO PWB YU CN PC MAIN PWB PC VIDEO PWB PC CN PL MAIN PWB PL PANEL PWB PL PL label side CN RS MAIN PWB RS 232C PWB RS CN AE MAIN PWB AE AUDIO PWB AE CN T1 SENS PWB T2 MAIN PWB T1 CN SW CTL PWB SW MAIN PWB SW CN LD LED PWB LD MAIN PWB LD CN PW PWR PWB PW MAIN...

Page 8: ...and PH passed through FL20 to 22 FAN PD and T2 fixed Fan and PD fixed to M05 TOP Green wire fixed PQ PV PA LD and PW fixed to M05 A14 PI P A PV PQ PN PM PN LD PW AE SW RS PM PD F2 AD F1 T1 PH AD fixed FAN PD and PH fixed PW T4 LD LM RM AB AE RM LM SW RS AB PV PQ PC YU BU PC YU BU SY PL DS SY PL T1 T2 Wire the connectors mount the two types of ferrite cores and bundle the wires by means of clampers...

Page 9: ...standby and three error detections No energization of POWER unit Is the power LED lit See page 10 Is the power LED flashing green See page 11 Is the power LED lighting green The power LED is lighting red Stand by mode See page 13 Is the power LED flashing red See page 10 Is the power LED flashing green and red See page 12 No No Yes Yes No Yes No Yes No Yes ...

Page 10: ...odule Is there an output of 5V at Pin 5 of the LD connector Pin 4 of the PW connector and pin 5 of the RS connector Failure in 5V line Check the LED PWR and RS232C modules Failure in the MAIN module Try to disconnect the PW PQ and RS connectors from one after another If the output of M 7V is available the circuits beyond these connectors are out of order If no output is found the POWER or the MAIN...

Page 11: ...er circuit is turned ON No Yes Connect a voltmeter to Pin 3 of F1 and F2 connectors MAIN module and switch the power ON Is 5V available at Pin 3 of P0F1 and P0F2 connectors MAIN module Failure in the MAIN module The fan is out of order on the side where 5V is available No Yes Is 5V available at Pin 3 of PN connectors MAIN module Failure in the POWER module or in another IC that uses A 5V line ...

Page 12: ...d pin 5 of the RS connector Failure in 5V line Check the LED PWR and RS232C modules Failure in the MAIN module In the case of green and red flashing the power supply cannot be reset with the OFF ON operation at the mains power supply remote control and wall outlet For the alarm reset keep pressing the input changeover key of the main unit and move the mains power supply to the ON position at the m...

Page 13: ...ing ON No Yes No Yes Is H maintained at Pin 79 of IC9501 MAIN module No Yes Is H maintained at Pin 3 of PM connector MAIN module No Yes Is H maintained at Pin 3 of IC9501 MAIN module Failure in the PDP module Disconnect the PV PQ PN and PA connectors one after another others kept connected and confirm that the power supply is available If it is not available the POWER unit is out of order Else the...

Page 14: ...ace the MAIN module Failure in the MAIN module Apply an NTSC grey scale signal to the video input 1 cir cuit and select the video input 1 Is the on screen display available End End See page 9 Is the display normal Is the display normal Are the 170V 70V and D 5V signals availalble on POWER module Failure in the PDP module ...

Page 15: ...signals available at Pins 7 and 10 and the V sync signals available at Pins 9 and 12 of the PC connector No video signal at video and HD DVD inputs No Yes Failure in the VIDEO module Failure in the MAIN module Is YUV signal available at Pins 1 3 5 of the YU connector No Yes Failure in the VIDEO module Are the H sync signals available at Pins 7 and 10 and the V sync signals available at Pins 9 and ...

Page 16: ...ly a 525p grey scale signal to the DVD1 HD1 input circuit and select DVD1 HD1 Apply a NTSC grey scale signal to the video input circuit and select video input 1 Apply a XGA 60 Hz grey scale signal to the PC1 input circuit and select PC1 Replace AD connector cable Replace the MAIN module Replace YU connector cable End End Is the display normal Is the display normal ...

Page 17: ...E VE011 D CONTROL NTSC CONT 18 BRIGHT 15 U COL 74 COLOR 4 TINT 22 SERVICE MODE Before entering the service mode it could be necessary to configure the plasma monitor in the On Screen menu Using the remote control press menu button The main menu appears on the screen Press the buttons to select the setup line The setup menu appears on the screen Select the color system line The color system menu ap...

Page 18: ... indicated on the label pasted on the back of PDP module Adjust RV2 V 5 1 V 0 1 V Check that the voltage at TP2 and TP3 does not change If it changes perform the previous adjustments again Adjust RV3 to obtain the specified PDP module voltage value 1V at TP2 70V This value is indicated on the label pasted on the back of PDP module DTV 1080i test pattern Check HD SELECT 1080i Select DVD HD input wi...

Page 19: ...03 0 675 0 596 dots 14 19 59 17 15 H sync pulse width uS 8 76 8 677 3 04 2 542 3 813 dots 107 128 64 64 96 H back porch uS 1 228 2 237 4 037 3 138 1 946 dots 15 33 85 79 49 V total mS 16 652 20 055 17 723 14 268 16 683 line 262 312 440 449 525 V display period mS 15 3 18 513 16 112 12 711 15 253 line 240 288 400 400 480 V front porch mS 0 191 0 321 0 282 0 413 0 191 line 3 5 7 13 6 V sync pulse wi...

Page 20: ...6 0 508 dots 64 24 16 56 16 H sync pulse width uS 2 116 1 27 2 032 1 556 3 048 dots 64 40 64 56 96 H back porch uS 3 175 4 064 3 81 2 222 1 524 dots 96 128 120 80 48 V total mS 15 13 735 13 333 11 764 13 333 line 525 520 500 509 525 V display period mS 13 714 12 678 12 8 11 093 12 19 line 480 480 480 480 480 V front porch mS 0 086 0 237 0 027 0 023 0 279 line 3 9 1 1 11 V sync pulse width mS 0 086...

Page 21: ...12 0 323 0 569 dots 24 40 56 16 32 H sync pulse width uS 2 3 2 2 4 1 616 1 138 dots 72 128 120 80 64 H back porch uS 3 556 2 2 1 28 3 232 2 702 dots 128 88 64 160 152 V total mS 17 778 16 579 13 853 13 333 11 756 line 625 628 666 625 631 V display period mS 17 067 15 84 12 48 12 8 11 179 line 600 600 600 600 600 V front porch mS 0 028 0 026 0 77 0 021 0 019 line 1 1 37 1 1 V sync pulse width mS 0 ...

Page 22: ...508 0 474 0 339 dots 32 22 22 16 16 H sync pulse width uS 1 117 3 764 2 032 3 319 3 048 dots 64 128 86 112 144 H back porch uS 3 91 2 047 3 81 3 319 2 878 dots 224 70 162 112 136 V total mS 13 414 16 676 13 333 16 667 16 65 line 667 529 500 517 596 V display period mS 12 549 15 132 12 8 15 474 16 091 line 624 480 480 480 576 V front porch mS 0 02 0 378 0 027 0 193 0 056 line 1 12 1 6 2 V sync puls...

Page 23: ...27 0 749 1 0 369 0 32 dots 48 64 51 24 24 H sync pulse width uS 2 301 2 058 3 2 2 092 1 813 dots 176 176 164 136 136 H back porch uS 2 51 2 246 2 2 2 462 1 92 dots 192 192 113 160 144 V total mS 16 627 16 662 15 579 16 666 14 272 line 750 795 628 806 806 V display period mS 15 962 16 034 15 84 15 88 13 599 line 720 765 600 768 768 V front porch mS 0 089 0 084 0 026 0 062 0 053 line 4 4 1 3 3 V syn...

Page 24: ...08 0 4 0 444 0 119 dots 16 48 32 48 2 H sync pulse width uS 1 219 1 016 1 2 1 037 1 067 dots 96 96 96 112 144 H back porch uS 2 235 2 201 2 2 2 296 1 837 dots 176 208 176 248 248 V total mS 13 328 11 765 13 347 16 661 13 329 line 800 808 804 1066 1066 V display period mS 12 795 11 183 12 749 16 005 12 804 line 768 768 768 1024 1024 V front porch mS 0 017 0 015 0 050 0 016 0 013 line 1 1 3 1 1 V sy...

Page 25: ...1 0 59 0 75 0 943 dots 8 10 44 18 70 H sync pulse width uS 2 526 2 46 0 59 2 35 1 077 dots 75 60 44 57 80 H back porch uS 3 267 2 665 2 59 2 25 2 963 dots 97 65 192 55 220 V total mS 19 911 16 522 16 652 16 683 16 667 line 625 525 562 562 525 750 V display period mS 18 35 15 106 15 319 15 348 line 576 480 517 517 483 720 V front porch mS 0 223 0 252 0 148 0 191 0 111 line 7 8 5 6 5 V sync pulse wi...

Page 26: ...h uS 1 185 1 200 4 750 1 280 dots 88 48 76 128 H back porch uS 1 993 2 250 4 500 1 440 dots 148 90 72 144 V total mS 16 652 16 682 16 663 16 683 13 322 line 562 563 562 262 5 262 5 915 V display period mS 16 000 16 000 15 15 15 236 15 236 12 667 line 540 540 511 239 239 870 V front porch mS 0 059 0 074 0 178 0 064 0 096 0 044 line 2 2 5 6 1 1 5 3 V sync pulse width mS 0 148 0 148 0 148 0 191 0 191...

Page 27: ...VDS 100M F1 SCREEN POST T1 SDRAM SDRAM PRE FLASH SDRAM AMDP2 PANEL LINK PL Pn P ADC RGB ADC Y Pb Pr RE G G G 1 2 1 8 5 2 RE RE SELECTER SELECTER FILTER FOR HDTV FILTER FOR PC AMP FOR PC FILTER FOR VIDEO RS SW AE CPU IC 9502 A14 A 5 D 5 M7 FL 3 3V FL 3 3V ANP YPbPr AD SY BU YU PC IC 6702 IC 6502 EXT PC ...

Page 28: ...3 IC5314 IC5316 IC5302 IC5303 IC5001 IC5303 IC5311 IC5502 IC5505 IC5506 IC5504 IC5852 IC5856 IC5868 IC5851 IC5867 IC5869 IC5866 IC5854 IC5701 IC5509 IC5508 IC5301 IC5501 IC5503 IC5508 IC5510 IC5509 IC5306 IC5310 IC5312 AUDI03 AUDI02 HD1 D VD2 AUDI01 VIDEO3 S T erminal RGB2 HD2 D VD2 5BNC RGB1 D SUB 15PIN VIDEO2 VIDEO1 VIDEO module ...

Page 29: ...2 29 POWER module SUB module PD PH TP3 D 170 TP4 D GND TP1 D 5V RV2 D 5 ADJ RV3 D 70 ADJ TP2 D 70 RV4 D 170 ADJ PM PN PQ PV PA PI PWC 4419B LED PWB PWC 4419D CTL PWB PWC 4419A 232CPWB PWC 4419C PWR PWB PWC 4419E SP PWB ...

Page 30: ...x de Matrix CLK H V DE 48 X TAL 100MHz Buff ALVC244 PnP IC7xxx 24LC21 PANEL LINK PWB 232C PWB REMIN2 WIRE CTL CHILED LOCK SW RXD TXD REG M 5V LED PWB LEDCTL1 2 REMIN To from VIDEO PWB CSSCR SIK1 SDIN1 SID1 RSTSCR To OSD To SCREEN To OSD SCREEN Ffom SCREEN To G A To PDP 5V 3V SMUTE fromCPU To AUDIO To PDP To G A BLKMARI To CPU H V F P RGB 48bit Analog video signal Digital video signal without VIDEO...

Page 31: ...V SYNC PROC YUV YPbPr RGB RGB RGB YPbPr RGB VIDEO Y C AUDIO1 L R AUDIO2 L R AUDIO3 L R TC7W66 SW BA7078 SYNC SEP YUV YPbPr RGB RGB Y Y G G H V H V AUDIO L R OUT H V H V PICTURE1 OUT FOR VIDEO PICTURE2 OUT FOR PC SYNC1 OUT FOR VIDEO SYNC2 OUT FOR PC 3 58NTSC Y C SEP 4 43NTSC PAL PAL M PAL N Y C SEP Y OUT BUFFER AMP BUFFER BUFFER BUFFER BUFFER Y G G AD8023 AMP BUFFER VIDEO DECODER BLOCK PICTURE INTE...

Page 32: ...DCTL2 GND M 5V A 14 GND A 5V GND A 5V GND T ALM1 T ALM2 S 13V GND S 13V GND A 14V GND S 13V GND S 13V GND A 14V GND M 7V GND NC A 5V GND A 14V GND A 5V GND PL 1 NC 2 AX2 3 RX2 SHIELD 4 RX2 5 NC 6 RX1 7 RX1 SHIELD 8 RX1 9 NC 10 DDC SCL 11 DDC SDA 12 SENS 13 NC 14 RX0 15 RX0 SHIELD 16 RX0 17 DDC 5VDC 18 RXC 19 RXC SHIELD 20 RXC 21 GND 1 GND 2 RA 3 RA 4 GND 5 RB 6 RB 7 GND 8 RC 9 RC 10 GND 11 RCLK 12...

Page 33: ...page blanche ...

Page 34: ...e Le Gallo 92648 Boulogne cedex Tel 01 41 86 60 00 Minitel 3616 ou 3623 TCEDS Internet http www thomson fr THOMSON multimedia Sales UK Limited 30 Tower View Kings Hill West Malling Kent ME19 4NQ England Tel 44 0 173 252 0920 THOMSON multimedia Sales Italy S p A Via Leonardo da Vinci 43 20090 Trezzano sul naviglio Milano Tel 02 48 414 111 THOMSON multimedia Scandinavia AB Florettgatan 29 C S 25467 ...

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