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I have a Vizio P50HDTV10A 50 in. Plasma that gave off a loud noise before the picture and sound went off. I have seen on YouTube that when that occurs, it is usually the Y Sustain Board that needs to

I checked the fuses on the Y Sustain board and they are working.

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  • Bryan Smith Dec 08, 2014

    Bulged capacitors can be replaced. Order new ones of the same size and rating at Digikey.com. De-solder the old ones and resolder the new ones.

  • Bryan Smith Dec 08, 2014

    Ensure you reinstall with correct polarity as well. Caps have - and + wires.

  • Tommy
    Tommy Dec 08, 2014

    Thank you

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Look in the circuit board area where the power cord mates with it for capacitors that have bulging tops (instead of the flat tops that are normal). If you see even one, you need to replace all the large capacitors othe power supply section (normally around 5 or 6).

Posted on Dec 08, 2014

Testimonial: "yes you are right there 3 maybe 4 capacitors that are slightly bulging. Are these removable to replace or does the whole board need to be changed?"

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1 Answer

My Vizio p50hdtv herd spark, and TV went black, no picture no sound


Check and replace the main power regulator board as card basis. It has damaged.

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Vizio P50HDTV10A 50 in. HDTV Plasma Television The picture started flashing in and out and then the picture went black. The power light is on, has sound no picture. only 2 yrs old


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Aug 26, 2010 | Vizio P50HDTV10A 50 in. Plasma HDTV

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P50 sound ok picture went dark but not out all the way. Made a loud noise when it happened


did you ever get a answer?
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Picture went out on p50hdm Vizio Plazma tv after loud POP


It's either the backlight lamp or backlight inverter is busted due to a power failure or fluctuation. Here's how to determine which is which:
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Sep 26, 2009 | Vizio P50HDTV10A 50 in. Plasma HDTV

1 Answer

4-year-old 50-inch flat screen made a loud 'bang' and picture went out. The noise was more mechanical than the type of pop or snap you'd expect if a capacitor blew. The audio is still ok.


Depends on the physical size of the cap; there are some larger ones in your set that would produce a 'bang' but you should also have gotten a whiff of the airborne chemicals then.

Sep 01, 2009 | Vizio P50HDTV10A 50 in. Plasma HDTV

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I have a Vizio 50 Plasma TV. Sound works but display is "noise".


It'll be the X or Y boards or maybe the power board, without checking the VA and VS voltages I can't tell.

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Loud Pop Vizio P50HDTV10A 50 in.


sounds like the power supply board..could be the system board, but sounds more like the power supply board..this unit still under warranty?

Oct 20, 2008 | Vizio P50HDTV10A 50 in. Plasma HDTV

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