Vizio Plasma - No Sound Until Warm

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Old 01-11-11, 10:44 AM
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Vizio Plasma - No Sound Until Warm

I have a 50" Vizio Plasma. It seemed to have low volume issues, but a couple of months ago it began producing no sound when first turned on after being off for a period of time (overnight). I found that turning the volume up to 100% for a few minutes (until warmed up) and then cycling power produced normal volume. Also, recently it started making a pop and then appears to shutdown (no audio or video) although the "Vizio" insignia remains lit blue. The unit needs to be powered down producing the orange insignia, and then powered back with normal operation. I assumed this issue was with the audio amplifier and assumed the amplifier was part of the audio board. But replacing the audio board had no effect.
 
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Old 01-11-11, 04:22 PM
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Please post the model # and part # of the board you replaced.
 
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Old 01-12-11, 09:30 AM
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VIZIO TV Model number: JV50P HDTV10A
Audio Board Assembly: 3850-0072-0137
 
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Old 01-12-11, 04:32 PM
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It sounds like the power board assymbly or the main board to me.I would go with the power board first.It's cheap.If that doesn't fix the problem then it must be the main board.
 
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Old 01-13-11, 05:25 AM
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Thanks, I'll provide update(s) on progress.
 
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