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Tv repair Sony KV20S10 Trinitron Color TV manufactered 8/1994 has only snow and no sound on all channels when turned on. After undetermined time both perfect picture quality and sound appear. If TV is turned off and back on same problem arises. TV operates with local antenna (rabbit ears) and problem started sometime after cable service was discontinued. Any ideas?? Thank you.

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  • bill bones Mar 09, 2008

    Thanks to Keever for the response.

    I really appreciate the response but I had already made sure the "cable" was set to Off right after cable service was discontinued. Keever's solution makes sense for 99.99% of the time, but unfortunately for me I'm apparently in the .01% group.

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Your tuner (in the tv menu) is probably still set on "cable", but it should be set on "off air" or "antenna". When you first turn it on, it looks for a cable signal and when it can't find one, it automatically searches for an "off air" or "antenna" signal. Once it finds a signal, then it stays on and runs ok. If you shut it off, then it has to go thru all this again.
There is a very high probability that this is your problem (about a 99.99% chance). Just go into your menu and select "tuner" or tuning or "input select" or something in that "neighborhood". Different TVs call it different names, so just put in on the option other than "cable". If you ever get cable back again, then, of course, you have to go back into your menu and set the tuner to "cable. Hope this helps.
Keever

Posted on Mar 08, 2008

  • mack paulk Mar 10, 2008

    Ok, if your set is small enough then take it to a friend's house (who has cable or dish) and see if it will play ok on one of those (Don't forget to set the menu back to cable). If so, then something is wrong with your rabbit ears, your rabbit ears cable, or your rabbit ears cable connector ends;-------OR your "antenna/off air" input circuits which are probably all located inside the tuner, itself. But before you try this, have you wiggled the rabbit ears cable where it goes into your tv and also where it comes out of the antenna device? If you are lucky, it could just be a bad connector. Another easy fix (if you are lucky) is to bumb the top of the tv and the back with your hand WHILE the tv is malfunctioning. You might have a "cold solder joint" and if so, many times a moderate jolt will temporarily give you a pic and sound. Other times, the tv will just flash or jitter a little bit every time you bump it. This "jitter when you bump" is not normal for a properly working tv and usually means a cold solder joint. Keep me posted and I'll stay with you until we either fix it or hit a dead end. Thanks for your response. Keever

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