Question about Sony FD Trinitron WEGA KV-32FS120 32" TV

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Tv won't turn on

Over the weekend my t.v. won't turn on it sounds like its going to but then the red blinking light keeps flashing 4 times. I have shut it down for 24-48 hours and still it won't turn on.

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The 4 blinks indicate no vertical pulse. Look for a small flat IC with about 12 pins or so attached to a heat sink. It should be marked LA7837 or something close. Try resoldering the pins on that first. If that fails to resolve the problem, replace the IC. That should give you a picture. Report back here if the picture is not correct and describe it. There may be capacitors that need to be replaced in the same circuit.
Dan

Posted on Jun 02, 2008

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