Question about Sony Bravia KDL46V4000 46 in. LCD TV

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Sound doesn't work on television Worked fine yesterday but it isn't working today. I know the power went out briefly(few seconds) today.

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Check a different input and all the connections to the TV to see if they are secure. After doing so and you still are getting no audio from all inputs then it means the audio processor failed. It was most likely caused by a power surge when the power went back on. This is fixed by replacing the main board. It is usually called a BU or AU board on Sony LCDs. Can be prevented in the future with a good surge protector or clean power surge filter.

Posted on Oct 07, 2009

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Sound doesn't work on television. Worked fine yesterday and doesn't work today. I can hear sound from the cable box going to my surround sound, however nothing to the television. I know the power went...


Sounds like there was a power surge that caused the audio processor in the TV to go out. This is fixed by replacing the main board.

The power supply board in the TV should also be checked as that could have been damaged as well. These are usually the first to go out from a power surge. Get a good surge protector to help prevent this in the future.

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