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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.
Code : 351 477 60
- 0401 / 00M -
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T V
42WS90E3
Plasma
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Table of Contents
Troubleshooting
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Summary of Contents for THOMSON 42WS90E3
- Page 1 SERVICE MANUAL DOCUMENTATION TECHNIQUE TECHNISCHE DOKUMENTATION 42WS90E3 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.
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Page 3: Table Of Contents
CONTENTS Page Page DISASSEMBLY AUDIO TROUBLESHOOTING Removing the back panel ....4 No audio signal from SP output ....16 Removing the connectors . -
Page 4: Disassembly
DISASSEMBLY 1. Removing the back panel assembly - Remove the 27 screws and take out the back panel assembly. Back panel assembly 2. Removing the connectors - Remove the connectors - Remove the connectors - Remove the connector - Remove the button and the screw pull the part - Remove the connectors... -
Page 5: Removing The Main Modules
- Remove the connectors - Remove the parts and the earth plate (pulse) - Remove the screws , and disconnect the cable 3. Removing the main module assembly - Remove the 8 screws - Lift the main module assembly 4. Removing the power unit - Remove the 8 screws - Lift the power unit First issue 04 / 01... -
Page 6: Removing The Left Terminal Panel
5. Removing the left terminal panel assembly - Remove the 6 screws and the 7 screws - Remove the terminal panel (MMP-L) assembly. 5.1 Removing the audio amplifier module - Remove the 3 screws - Remove the 2 screws - Take out the audio amplifier module. 5.2 Removing the RS232C module TERMINAL PANEL (MMP-L) ASSY - Remove the 3 screws... -
Page 7: Wire Location
6.1 Removing the video module - Unscrew the 5 screws and the 2 screws PANEL MODULE - Take out the video module. 6.2 Removing the panel module - Remove the 2 screws - Disconnect the wire - Take out the panel module. VIDEO MODULE WIRE LOCATION After replacement of the modules refer to the below diagram... -
Page 8: 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 9 LED lit ? Is the power LED See page 10 flashing green? - Page 9 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 10 The power LED is flashing green Is 12V available at Pin 1 Failure in the of F1 and F2 connectors MAIN module (MAIN module)? Connect a voltmeter to Pin 3 of F1 and F2 connectors (MAIN module) and switch the power ON Is 5V available at Pin 3 Failure in the of F1 and F2 connectors...
- Page 11 The power LED is lighting green Switch the power ON and listen to the AC relay Is "H" maintained at Pins Failure in the Is it possible to hear the 79 and 80 of IC9501 MAIN module AC relay switching ON? (MAIN module)? Is "H"...
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Page 12: Video Troubleshooting
VIDEO TROUBLESHOOTING No image presenta- tion, picture error Are there video signals at Pins Failure in the 11 , 17 and 24 of IC6502? MAIN module Is there a signal of 3Vp-p at Pins Are pulses of 3Vp-p (video Failure in the 1 ~ 47 of the AD connector signal) normally generated at MAIN module... -
Page 13: No Pc Picture
No PC pictures Failure in the Is RGB signal available at Pins VIDEO module 1 , 3 , 5 of the MN connector? Are the H/V synchro. signals Failure in the available at Pins 7 , 8 , 9 and VIDEO module 10 of the MN connector? Failure in the... -
Page 14: No Rgb Signal
No RGB signal Is RGB signal available at Pins Failure in the 1 , 3 , 5 of the MN connector? VIDEO module Failure in the MAIN module First issue 04 /01... -
Page 15: Synchonisation Trouble
Synchronisation trouble Is 5Vp-p available at Pins 77, Failure in the AD connector 78 and 79 of AD connector? or MAIN module Is 3Vp-p available at Pins 115 Failure in the (HSYNC) and 116 (VSYNC) MAIN module of IC8501 (MAIN module)? Is 3Vp-p available at Pins 39, 213, 42 and 212 (VSYNC) and Replace AD connector... -
Page 16: Audio Troubleshooting
AUDIO TROUBLESHOOTING No audio signal from SP output Is the mute function cancelled? Is the audio input Check various settings correctly selected ? Is the signal available at Check the speakers M2801 of the SP module ? and speaker cables Are signals available at LM and Disconnection in LM and RM connectors (AUDIO module)? -
Page 17: Adjustment
ADJUSTMENTS ADJUSTMENTS NECESSARY AFTER REPLACEMENT OF MODULES: - After replacement of MAIN 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, the "usage time"... -
Page 18: Video Screen Position
SERVICE NTSC test pattern : MAIN If there is any displacement of the display range in the PDP module, select MODE "MHPOS" and "MVPOS" lines, and adjust correctly. Video screen Video input position "POSITION" Select "H POS" line and adjust menu Select VIDEO input with the Select "V POS"... -
Page 19: Adjustment Location
ADJUSTMENT LOCATION MAIN module IC7011 PANEL IC9501 ∝-COM IC6502 IC8701 PALMIRA IC9802 IC7503 IC7504 IC8505 IC9004 IC7506 IC8501 TIRAMISU AMDP SCREEN3 IC8504 IC8503 9 RS 5 AE 1 First issue 04 / 01... -
Page 20: Video Module
VIDEO module IC5601 IC5209 IC5208 First issue 04 /01... -
Page 21: Power Module
POWER module 1 11 5 1 4 1 D+170 D+70 D.GN D+170 D+70 3 1 PI BLOCK DIAGRAMS AUDIO module First issue 04 / 01... -
Page 22: Main Module
MAIN module First issue 04 /01... -
Page 23: Video Module
VIDEO module First issue 04 / 01... - Page 24 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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