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I have a 1993 Sony Trinitron 32" TV, mod.# KU32TS46. It started with the screen going black but sound still working every 30 mins for 3mins and then it would come back on and work fine. Now it works for 10mins and goes off for 3mins and then back off in 10 for 3. The sound always works and when the screen works it works well and clear. Any ideas. Is it worth fixing. Thanks Pete

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This could be as simple as bad connections on the main board or the beginning of the CRT failing. Try opening up the set and carefully turning the screen control clockwise just a bit. This control shuold be the top knob on the flyback transformer (part with large red wire coming out the top). If that "fixes" the problem, then your CRT is starting to fail and you just bought time to get a new set. If that does not fix it, try looking for poor solder connections on the board.
Keep us posted.
Dan

Posted on Apr 15, 2008

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