Question about Sony Bravia KDL-46V4100 46 in. LCD HDTV

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TV volume goes down with out being touched

Volume goes up with remote, but lasts a few seconds and goes back down to zero.

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I just recently encountered the same problem with a Sony Bravia KDL-46EX500. It started out of nowhere but after what seemed to be an update from the cable company. The volume would go down to zero and the LCD light on the front of the TV would continually blink. After trying many "solutions" including resetting the TV to factory defaults, , I removed the batteries from the cable universal remote (Comcast Xfinity) and used only the TV remote and the TV worked fine. When I reinstalled the batteries into the Xfinity remote, the problem started again. So I tried using some of the other codes listed for Sony televisions and found that an alternative code (10273) would also control the TV but not reduce the volume automatically. So, in short, try looking for a different, usable code for any universal remote that you may be using - it may be the problem.

Posted on Apr 17, 2014

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May have a sticky button or a shorted transistor switch.

Posted on Jul 01, 2009

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Volume decreasing to zero by itself


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No volume without holding remote button


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