When I turn my tv on, every channel is snowy, if I tune to a high channel (99) after a few minutes the picture will break through the snow. It will work fine for a while, then all the channels become snowy. If I use pip, the secondary channel comes in perfectly, but the main channel is still snow. There is no sound, No signal at all is getting through. Not cable issue, I have 3 other tv's that work perfectly. Could it be an issue with the cable connection inside the tv? Thanks for your help.
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More information would help. What are you running the signal into the TV with? Coax? Separate video/audio? To test the set if you have a vcr hooked up or available to hook up, input it into the tuner input and play a tape. Set the tv to either channel 3 or 4 (whichever channel the output of the vcr is set for, this can be determined by checking the menu or a switch on the back if it is an older vcr). If your TV is ok you should be able to see the tape which is playing. If not, and you still have snow you probably need a new tuner in the set. Let me know if you need more help.
Not sure what causes it but it can be fixxed by your local repair guy, I just had mine fixxed for under a hundred bucks, he takes the back off and with a tiny screw driver adjust a few screws to near brand new perfect picture.. and it has been good ever since
Usually a snowy picture means that you have a bad ground connection. You should see that some channels are beter than others. Verify that the cable connection is good. Try a different cable if you can. If that has no effect, than we need to start looking at the tuner itself. If you can change channels but just have a poor picture, chances are that a resolder of the tuner section will resolve the problem.