Question about JVC AV-A21M3U 21" TV

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Tv trouble shooting

It is JVC AV-21FMG3B. the power led keeps blinking. but it doesn't turn on. please help me find the problem.

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  • delane krause May 17, 2008

    My TV keeps jumping into timer out and can´t get it to stay on

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  • Master
  • 1,694 Answers

1)Check secondary fuse devices. 2)Check horiz output xistor=shorted? 3)replace w/equiv.or better part. 4)Check solder connects in horiz drive circuit. Replace small electrolytic filter cap in base circuit of horiz o/p==horiz drive xformer and xistor area,typically 1mf/160v,C531? 2b)not shorted==do step 4 anyway 5)still blinking?==check vert o/p,audio o/p and regulated o/p's

Posted on Oct 02, 2007

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Posted on Jan 02, 2017

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Page 40 on the PDF link below may help - Ask me if you need further assistance.
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As Tv's age, the high-voltage suffers and they get darker. You can turn up the screen adjustment on the flyback transformer and buy some time but:
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