Question about Vizio P4 46 in. HD-Ready Plasma Television

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One year to the date almost now out of warrenty it wont turn on

The tv was acting up for a week like it wanted to turn on, then it would go off, then back on, then off about 4 to 5 times before it would finally stay on. Now it will not turn on at all and I am 4 days past the dated of purchase. Any suggestions?

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Mine did the same thing (VP322), I would go to turn it back on after it having been off for a while, and it would turn on, then off, then on... Over time it would cycle on and off even longer... Eventually it stopped working, would not turn on and made a clicking sound.

Mine was past it's warrently, so I opened it up and inspected the switchmode power supply board (where AC connects, and two voltage ribbon cables going to screen circuit and main circuit). On the side going to the main circuit board I noticed that five electrolytic capacitors were bulging at the top (a clear sign of overheating) and when this happens, their values (in farads) tends to drop, which can cause voltage instibilities.

The capacitor values were:

2 x 25V 1000 uF
2 x 10V 3300 uF
1 x 10V 1000 uF

I replaced them with spares and reassembled the unit, and it now works.

Hope that helps!

Posted on Sep 03, 2009


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