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THOMSON 32WB842S, Technical Information

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Chassis    ITC222 / ITC222 - PTV

Symptom description

ITC222

Sound vibrations transmitted by boomer speaker.

ITC222 - PTV

Yellowish area and bluish area on the screen are visible.

Mechanical

Summary of Contents for 32WB842S

Page 1: ...F O O R R M M A A T T I I O O N N Chassis ITC222 ITC222 PTV Power supply H_Deflection circuit V_Deflection circuit HF IF circuit Picture Tube Display Input Output Scart Mechanical Control panel Data processing Audio processing Section Video processing General ...

Page 2: ...on T T E E C C H H N N I I C C A A L L I I N N F F O O R R M M A A T T I I O O N N Chassis ITC222 ITC222 PTV Symptom description ITC222 PTV Rigging effect ITC222 The set switches into security mode Power supply ...

Page 3: ... C C A A L L I I N N F F O O R R M M A A T T I I O O N N Chassis ITC222 ITC222 PTV Symptom description ITC222 Sound vibrations transmitted by boomer speaker ITC222 PTV Yellowish area and bluish area on the screen are visible Mechanical ...

Page 4: ... C C H H N N I I C C A A L L I I N N F F O O R R M M A A T T I I O O N N Chassis ITC222 ITC222 PTV Symptom description ITC222 Ringing effect Visible mainly on a blue screen Freezing of Teletext sub title Data processing ...

Page 5: ...ision T T E E C C H H N N I I C C A A L L I I N N F F O O R R M M A A T T I I O O N N Chassis ITC222 ITC222 PTV Symptom description ITC222 PTV Ringing effect Visible mainly on a blue screen Video processing ...

Page 6: ... H H N N I I C C A A L L I I N N F F O O R R M M A A T T I I O O N N Chassis ITC222 ITC222 PTV Symptom description ITC222 ITC222 PTV Correction PART N of capacitor CP110 ITC222 PTV Burning of tracks on the PCB of CRT General ...

Page 7: ..._________________________________________________________ Chassis ITC222 PTV Symptom Problem observed Presence of one or several vertical bars on right side of the screen Rigging effect Solution Change the coil LP112 by the new model 100µH PART No 10857310 IRIS Code The code mentioned below must be used to report the failure on the warrantee claims form we have included it to make fault report eas...

Page 8: ...________________________________________________ Chassis ITC222 Symptom Problem Observed When the TV is switched On by the mains switch or the channels are changed the set switches into security mode Solution Change RF041 from 22KΩ to 15KΩ 5 0 250W PART No 15006510 IRIS Code The code mentioned below must be used to report the failure on the warrantee claims form we have included it to make fault r...

Page 9: ...______________________________________________________________________ Chassis ITC222 32WB842S 32WB843S Symptom Problem observed Sound vibrations transmitted by boomer speaker Solution Add 2 foams adhesives PART N 25729640 according to the drawing below IRIS Code The code mentioned below must be used to report the failure on the warrantee claims form we have included it to make fault report easier...

Page 10: ...ation kit depends upon the screen size please see the notes below A For a screen dimensions of 915mmX529mm the KIT is PART N 35790290 Contents of the Kit 6 modified brackets 12 screws 4mmx16mmm Kit installation Unscrew and remove the Front Frame Unclip or unscrew the 6 brackets Centre the screen Fit the 6 modified brackets using the screws provided Assembly the Front Frame B For a screen dimension...

Page 11: ... reduced by a correct adjustment of the raster shift circuit In 16 9 format with a Geometry pattern Enter in service mode Geometry menu reduce H Amplitude from 16 steps Video menu enter in G2 Alignment increase G2 voltage SCREEN potentiometer slightly until raster becomes visible Center the raster between tube borders equal distance on both sides with PL551 ON DFB Board Return to Geometry menu Adj...

Page 12: ...__________________________________________________________________________________ Chassis ITC222 UK Only Symptom Problem Observed Freezing of Teletext sub title Solution Replace the software IR130 by the new V1 62 PART No 25761210 IRIS Code The code mentioned below must be used to report the failure on the warrantee claims form we have included it to make fault report easier and the data more rel...

Page 13: ...______________________________ Chassis ITC222 PTV Symptom Problem Observed Ringing effect Visible mainly on a blue screen Solution Change the capacitor CB169 red CRT CB269 green CRT and CB369 blue CRT by a jumper Change the coil LP112 on power board by the new model PART No 10857310 IRIS Code The code mentioned below must be used to report the failure on the warrantee claims form we have included ...

Page 14: ...on of code and description in the part list On the spare part lists please bring the following correction The right code is PART No 10658570 capacitor 220µF 200V Instead of PART No 10516590 capacitor 100µF 200V Chassis Position of capacitor ETC210 CP110 ETC210 PTV CP110 ETC221 CP110 ICC20 CP110 ICC21 CP110 ITC008 CP080 ITC222 CP110 ITC222 PTV CP110 TX807C CS CP080 THOMSON multimedia Sales UK Limit...

Page 15: ...10 Jumper in position JB323 blue CRT I b Delete the capacitor CB186 red CRT and CB386 blue CRT I c If there is a coil in position LB200 green CRT replace by a jumper II Mechanical Cut the cable clip and move away the EHT cables of wire connector BB104 then attach cables EHT with a new cable clip see photo Caution The modifications described above can create ringing effect visible on blue screen On...

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