Question about Sony KV-32S42 32" TV

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PICTURE GOES OFF AND ON WHILE TRYING TO WATCH SOMETHING

AT FIRST IT DID THAT WHEN YOU FIRST TURNED IT ON. Then when heated up it would stop but now it does it all the time

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  • Contributor
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This could be a "White balance failure" and the probable cause locations listed are as follows:

1. Video OUT (IC9001-IC9003) is faulty (C board)
2. CRT drive (IC201) is faulty (A board)
3. G2 is improperly adjusted.

These are starting points for a qualified service technician. The most likely of the above is IC9001, since it is the RED-VIDEO OUT chip.
Best Regards,
Beach TV Repair

Posted on Jul 04, 2010

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  • Sony Master
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I say for starters, you really should investigate the vertical IC. This is first of all, a very common problem in the Sony TV. You will find cracked rings on this chip, resoldering is the first step in solving the no raster audio only! The other thing to mention would be a faulty regulator. If you have an access to a variable transformer, please use it. You may discover at about 130 volts you will have a raster that is not wide enough to fill the screen. This would indicate a faulty horizontal regulator. And sometimes the audio IC will have a built in standby. In the Sony TV,a standby will act like a powerline regulator, This IC will shut this TV down eventually. Any of these problems will be present because you have bad capacitors. They will pull these ICs down.Remember these are only suggestions for now. The Sony TV is very complicated and you can use all the hints you can get. Thanks for asking!

Posted on Jul 06, 2010

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Check whether the crt filament is glowing...there could be dry solders in 6.3v filament supply.

Posted on Sep 05, 2010

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Posted on Jan 02, 2017

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