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Question about Sony KV-27V42 27" TV

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No video signal

The video in on my sony TV just quit working. Video from the tuner is just fine, but if I have the input set to video 1 or 2 with a signal on the composite video in, I just get a black screen, though sound works just fine. If I feed the video signal in through the SVideo in, I get black and white video, but no color. It used to work just fine, so I am not just wiring it wrong. ( I have tried three different DVD players and my powerbook in each of video 1 and 2 and SVideo, and the results are always the same).

Posted by Matthew Asplund on

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Jerry Greenberg

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I have had the input switching IC, and or parts failures in the input amplifiers go defective in these sets.

This can happen from a static electricity discharge while connecting something, or if one of the devices being connected has an electrical leakage and causes some current to come up in to the input of the TV set.

I have also had the input jack assembly go defective and require servicing. This is from one of the jacks breaking and causing an internal short, or if the circuit board became cracked or broken from the TV falling or being roughly handled.

Jerry G.

Posted on Apr 17, 2008

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