Vizio V50HDTV10A NoPicture


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Vizio V50HDTV10A NoPicture

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steve52
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Feb 1, 2009, 8:01 PM

Post #1 of 3 (1330 views)
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Vizio V50HDTV10A NoPicture	Can't Post

My TV has no picture, but sound and tuner work fine. I believe this indicates a bad y sus board. The ps has several bulging caps, so I know it's bad. When I measured the output voltages VS and VA they fluctuate +/- 5 to 10 volts continuously. The +5 output measures approx. 5.5v <br> <br>My question is, is there a way to test the y sus board? And is it possible that the bad ps has burned out other boards? Or is the ps possibly the only problem? I really don't want to just start replacing parts if I'll end up spending more than this TV is worth--my research indicates that these Vizio plasmas are very prone to early failure. <br>

(This post was edited by steve52 on Feb 1, 2009, 8:22 PM)

zip
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Feb 1, 2009, 11:27 PM

Post #2 of 3 (1324 views)
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Re: [steve52] Vizio V50HDTV10A NoPicture [In reply to]	Can't Post

likely just a power supply problem, you can check the y board by unpluging the y board from the power board and then checking all the pins on the y board (that are feed the voltage lines, like vs,ve,va) for a low reading on your ohm meter checking to ground. If you get a low reading on any of these pins the y board is bad also.

steve52
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Feb 2, 2009, 12:16 AM

Post #3 of 3 (1323 views)
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Re: [zip] Vizio V50HDTV10A NoPicture [In reply to]	Can't Post

Thanks, zip! I'll check them at halftime.
How low is low?

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