Question about JVC AV-30W475 30" TV

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Help Please NO Picture!

There is no picture, all I get is a black blank screen, there are no words on the screen, but I can here the sound even when changing the channels. I bought this TV 3 Years ago. When I press INPUT nothing on the screen appears.

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  • andresf Jan 25, 2008

    same problem. No picture, sound OK. Any ideas?

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  • Master
  • 579 Answers

The high voltage display power is down. First step is to measure the B+ voltage with a voltmeter to see if you have power to this section. It should be about 140 volts so don't touch it. Having this kind of failure after 3 years is unusual. Was there any kind of power surge etc that may have coincided with it?

Posted on Dec 31, 2007

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Posted on Jan 02, 2017

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