Question about Sony KV-27S20 27" TV

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I cannot see the channels in my tv

When I try to see some channels in my television one does not see and is not listened but if I use the entry of auxiliary video on screen one is OK the video and also the sound is listened.

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If I understand your problem correctly it sounds as though when you watch your TV through the tuner you get nothing (no sound or picture) but when you watch it through the Aux inputs (with DVD or VCR) everything is fine. If that is the problem you either have a bad tuner or a bad matrix IC. I've seen both problems in this model and the cost to fix either is about the same. If you know TV safety and can solder unplug unit, remove the back, remove the main circuit board, remove the tuner from the board. This web address http://www.moteva.com/shop/customer/home.php?cat=267 has an original tuner for $18.00 US plus shipping. Install the new tuner and give it a try. If all went well this should solve your problem. If not you will probably need a service manual to locate the matrix IC. http://www.servicemanul.net for $16.00 US as a download. Locate the matrix IC. It should be on a vertical board on the left side. You should be able to get it at this website http://www.tritronicsinc.com This should resolve all your problems. If you can't solder or do not understand electronics you should have a repair tech fix it. Cost should not exceed $100 to $150 US. A free solution would be to hook up a VCR to the Aux input and use the tuner on the VCR and forget about trying to get channels through the TV tuner. It's your choice. Good luck and remember safety.

Posted on Jul 20, 2006

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Posted on Jan 02, 2017

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No sound


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