Question about Philips Magnavox 27MS343S 27" TV

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TV Volume goes up when channel is changed Philips 20S240

My father in law has a Philips TV, model 20S240 C122. When he changes the channel on the TV either with the remote or by changing it directly on the tv, the volume briefly (for about 1 to 2 seconds) increases significantly, then returns to normal. Also when the mute is pressed (again, either by remote or on the unit) the volume goes to full blast.

What could be causing this? Is this a relatively easy fix? Does anybody know where I can get a service manual for this? My father in law talked to a tv repair shop and they said the IS sensor (I think he meant IR sensor) needs replacement. Does this make sense?


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I don't think the IR sensor has anything to do with it. It sounds like a surface mount micro processor to me...

Posted on Jan 08, 2008


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