THOMSON 50WS94E Service Manual
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THOMSON 50WS94E Service Manual

THOMSON 50WS94E Service Manual

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SERVICE MANUAL
DOCUMENTATION TECHNIQUE
TECHNISCHE DOKUMENTATION
DOCUMENTAZIONE TECNICA
DOCUMENTACION TECNICA
WARNING : Before servicing this chassis please read the safety recommendations.
ATTENTION : Avant toute intervention sur ce châssis, lire les recommandations de sécurité.
ACHTUNG : Vor jedem Eingriff auf diesem Chassis, die Sicherheitsvorschriften lesen.
ATTENZIONE : Prima di intervenire sullo chassis, leggere le norme di sicurezza.
IMPORTANTE : Antes de cualquier intervención, leer las recomendaciones de seguridad.
- 0602
No copying, translation, modification on other use authorized. All rights reserved worldwide. • Tous droits de reproduction, de traduction, d'adaptation et d'exécution réservés pour tous les pays. • Sämtliche Urheberrechte an diesen Texten und Zeichnunge n stehen uns zu. Nachdrucke,
Vervielfältigungen - auch auszugsweise - nur mit unserer vorherigen Zustimmung 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.
T V
50WS94E
Plasma

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Summary of Contents for THOMSON 50WS94E

  • Page 1 SERVICE MANUAL DOCUMENTATION TECHNIQUE TECHNISCHE DOKUMENTATION 50WS94E DOCUMENTAZIONE TECNICA DOCUMENTACION TECNICA Plasma WARNING : Before servicing this chassis please read the safety recommendations. ATTENTION : Avant toute intervention sur ce châssis, lire les recommandations de sécurité. ACHTUNG : Vor jedem Eingriff auf diesem Chassis, die Sicherheitsvorschriften lesen.
  • Page 2 Do not disconnect modules when they are energized! Repairs on power supply section are to be carried out only with isolating transformer. Ne pas retirer les modules lorsqu' ils sont sous tension. N'effectuer les travaux de maintenance sur la partie reliée au secteur (Switch Mode) qu'au travers d'un transformateur d'isolement.

  • Page 3: Table Of Contents

    CONTENTS Page Page ADJUSTMENT ......17 DISASSEMBLY Power ....... . . 18 Removing the back panel .

  • Page 4: Disassembly

    DISASSEMBLY 1. Removing the back panel assembly - Remove the 6 screws and take out the foot holder assembly Fig. 1-1 - Remove the 32 screws and the 2 screws - Unscrew the 8 screws around the audio/video output and lift the back cover Fig.

  • Page 5: Removing The Module Assembly

    2. Removing the module assembly - Remove the 2 screws and lift the bracket - Unscrew the 8 screws and remove the shield cover Fig. 2-1 - Remove the 2 screws and the metal bracket, - Unscrew the 8 screws , disconnect F2 (see fig.
  • Page 6 - Remove the 8 screws - Unscrew the screws and lift the ground terminal of AD - Unscrew the 2 screws and remove the SENT/SENS connector, boards and brackets, - Disconnect AD connector - Unscrew the screws and remove the ground terminal (see fig.

  • Page 7: Removing The Pdp Module

    - Remove CN104 connector, - Remove the PDP module - Slightly lift the module assembly to disconnect CN105, - Remove the module assembly CN105 CN104 Fig. 2-5 3. Removing the PDP module - Remove the board assembly as explained in the previous chapter, - Unscrew the 4 screws at the corners of the PDP module, WIRE LOCATION...
  • Page 8 Wire the connectors, mount the two types of ferrite cores, and bundle the wires by means of clampers, etc. T1 and T2 fixed to M05 FAN, PD, and T2 fixed PD and PH fixed PD and PH passed (Caution) T2 passed through FL36 Fan and PH fixed Fan and PD fixed to M05 through FL20 to 22...

  • Page 9: Diagnostic

    DIAGNOSTIC The power LED located on the front of the display is a bicolour LED wich indicates the operating status including the normal, standby and three error detections No energization of POWER unit Is the power See page 10 LED lit ? Is the power LED See page 11 flashing green?
  • Page 10 Power LED unlit Is the power plug correctly Rearrange the power plug connected to the wall outlet? connection correctly. Fuses F1 and F2 have blown Is there AC 100V behind out. Replace the fuses. If they the fuses F1 and F2? blow out again, the POWER unit is out of order Try to disconnect the PW, PQ,...
  • Page 11 The power LED is flashing green Does the fan run when Is 12V available at Pin 1 of Failure in the the main power circuit P0F1 and P0F2 connectors MAIN module is turned ON? (MAIN module)? Connect a voltmeter to Pin 3 of F1 and F2 connectors (MAIN module) and switch the power ON...
  • Page 12 The power LED is fla- shing red and green Failure in the Is 0V observed at Pin 100 of IC9501 (MAIN module)? MAIN module Is 0V observed at Pin 2 of Failure in the IC9505 (MAIN module)? PDP module Failure in the Is 5V observed at Pin 14 of MAIN module IC9505 (MAIN module)?
  • Page 13 The power LED is lighting green Switch the power ON and listen to the AC relay Is "H" maintained at Failure in the Is it possible to hear the Pin 79 of IC9501 MAIN module AC relay switching ON? (MAIN module)? Is "H"...

  • Page 14: Video Troubleshooting

    VIDEO TROUBLESHOOTING No picture Apply an NTSC grey scale signal to the video input 1 cir- cuit and select the video input 1 Is the on screen Failure in the display available MAIN module Replace AD, PD and PH connector Is the display normal? Replace the MAIN module Is the display normal?

  • Page 15: No Rgb Signal

    No video signal at RGB input Is RGB signal available at Pins Failure in the 1 , 3 , 5 of the PC connector? VIDEO module Are the H sync signals available Failure in the at Pins 7 and 10 and the V sync VIDEO module signals available at Pins 9 and 12 of the PC connector?

  • Page 16: No Still Pictures Of Pc

    No interlace motion No still pictures of No progressive motion picture for video, PC generated pictures generated DVD and HDTV Apply a NTSC grey scale signal Apply a 525p grey scale signal Apply a XGA 60 Hz grey to the video input circuit to the DVD1/HD1 input circuit scale signal to the PC1 and select video input 1...

  • Page 17: Adjustment

    ADJUSTMENTS ADJUSTMENTS NECESSARY AFTER REPLACEMENT OF MODULES: - After replacement of MAIN module or Video module, perform the adjusments of "video screen position" and "DVD/HD/DTV screen position". - After replacement of POWER or PDP module , perform the adjusment of "+170V/+70V" and "+5V". When replacing PDP module, also perform "screen position"...

  • Page 18: Power

    POWER Apply colour bar test pattern Adjust RV4 to obtain the specified PDP module (D+170V ADJ) to either Video, HD/DVD or voltage value +/-1V at TP3 (+170V). This value is +170V VGA input indicated on the label pasted on the back of PDP module +70V Adjust RV3 to obtain the specified PDP module (D+70V ADJ)

  • Page 19: Rgb/Pc Signal Timing Table

    RGB/PC signal timing table: PC mode Signal name VU-6010 VU-6010 PC98 PC98 NTSC PAL/SECAM 400@56Hz 400@70Hz 480@60HZ Definition 640*240 768*288 640*400 640*400 640*480 Dot clock frequency (MHz) 12.214 14.752 21.053 25.175 25.175 H frequency (kHz) 15.734 15.557 24.826 31.469 31.469 V frequency (Hz) 59.94 50.39...
  • Page 20 PC mode Signal name MAC@13Ó VESA VESA VESA XGA-2 480@72Hz 480@75Hz 480@85Hz 480@75HZ Definition 640*480 640*480 640*480 640*480 640*480 Dot clock frequency (MHz) 30.24 31.5 31.5 36.0 31.5 H frequency (kHz) 37.861 37.5 43.269 39.375 V frequency (Hz) 66.667 72.809 85.008 H total (uS) 28.571...
  • Page 21 PC mode Signal name VESA VESA VESA VESA VESA 600@56Hz 600@60Hz 600@72Hz 600@75Hz 600@85Hz Definition 800*600 800*600 800*600 800*600 800*600 Dot clock frequency (MHz) 49.5 56.25 H frequency (kHz) 35.156 37.879 48.077 46.875 53.674 V frequency (Hz) 56.25 60.317 72.188 85.061 H total (uS) 28.444...
  • Page 22 PC mode Signal name MAC@16Ó I/O dater CEREB VESA wide VESA wide wide wide 1 (NEC 1) (NEC 2) Definition 832*624 852*480 864*480 848*480 1024*576 Dot clock frequency (MHz) 57.2832 34.006 42.526 33.75 47.25 H frequency (kHz) 49.725 31.722 37.5 31.02 35.795 V frequency (Hz)
  • Page 23 PC mode Signal name VESA wide VESA wide CEREB VESA VESA (NEC 3) (NEC 4) wide 2 768@60Hz 768@70Hz Definition 1280*720 1360*765 1024*600 1024*768 1024*768 Dot clock frequency (MHz) 76.5 85.5 51.2 H frequency (kHz) 45.106 47.712 37.879 48.363 56.476 V frequency (Hz) 60.142 60.015...
  • Page 24 PC mode Signal name VESA VESA MAC@19Ó VESA VESA 768@75Hz 768@85Hz 1024@60Hz 1024@75Hz Definition 1024*768 1024*768 1024*768 1280*1024 1280*1024 Dot clock frequency (MHz) 78.75 94.5 H frequency (kHz) 60.023 68.677 60.24 63.981 79.976 V frequency (Hz) 75.029 84.997 74.93 60.02 75.025 H total (uS) 16.66...
  • Page 25 PC mode Signal name IDC-3000G IDC-3000G HDTV -J DTV (480P) DTV (720P) PA L 625P NTSC 525P Definition 768*576 640*480 1920*1034 644*483 1280*720 Dot clock frequency (MHz) 29.687 24.39 74.25 24.37 74.25 H frequency (kHz) 31.389 31.47 33.75 31.469 45.000 V frequency (Hz) 59.9 60/60...
  • Page 26 PC mode Signal name HDTV -W SSPE JSPE MAC@12Ó Definition 1920*1080 1024*512 852*480 1152*870 Dot clock frequency (MHz) 74.25 H frequency (kHz) 33.75 33.727 15.75 68.681 V frequency (Hz) 60/60 60.012 59.94 75.062 H total (uS) 29.630 29.650 63.750 14.560 (dots) 2200 1186...

  • Page 27: Adjustment Location

    ADJUSTMENT LOCATION MAIN module 100M LVDS LVDS SDRAM SCREEN SDRAM POST PANEL FLASH LINK AMDP2 3.3V 3.3V SDRAM (Y Pb Pr) (RGB) SELECTER SELECTER 9502 FILTER FILTER (FOR (FOR PC) HDTV) FILTER (FOR VIDEO) (FOR PC) (YPbPr) First issue 06 / 02...

  • Page 28: Video Module

    VIDEO module First issue 06 /02...

  • Page 29: Power Module

    POWER module D. GND D+170 D+5V D+170 D+5 ADJ D+70 D+70 SUB module PWC-4419E SP PWB PWC-4419C PWR PWB First issue 06 / 02...

  • Page 30: Block Diagrams

    BLOCK DIAGRAMS MAIN module First issue 06 /02...

  • Page 31: Video Module

    VIDEO module First issue 06 / 02...

  • Page 32: Wiring Diagram

    HDSTP VSTP SENS SENT (PCB-5001C) (PCB-5001D) PC3HD SHIELD WIRE PDP MODULE 1 2 3 ... 39 40 41 PC3VD SHIELD WIRE 1 2 3 ... 39 40 41 SCL5 1 GND 22 GND SDA5 SCL4 2 RA- 23 RG- M+7V PC3HD A+5V SDA4...
  • Page 33 page blanche...
  • Page 34 Dopravaku - dum Genius 1 Tel. : 01 41 86 60 00 Dolni Chabry Minitel : 3616 ou 3623 TCEDS CZ - 18400 Prague 8 Internet : http://www.thomson.fr Tel. : (2) 688 67 70 THOMSON multimedia Hungary KFT Lajos u. 78. II.em.

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