Our TV was working perfectly fine until this morning. I turned it off because I left the house for about an hour.
When I returned I tried to turned the TV on but no picture came on only a sharp, squeaky noise that stays on. I can't even use the TV button to turn it off. I had to unplug the TV because of the noise.
Please give me some advise.
I'm having the same exact problem with mine! I'm looking for a solution also. I opened up the back of the TV and blew out the dust. Then I checked all connections. I put it back together and plugged it in. Now it doesn't make the high-pitched squeeking sound, but I still don't get a picture. My guess is the picture bulb is burnt out. I'm trying to find one online and am planning to fix it myself - wish me luck!
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With Direct TV, you should use the video input (composite video- yellow/picture, red/right stereo, white/left stereo) OR component video- (green/video, blue/video,red/video white/left channel stereo, red/right channel stereo)
the antenna connector should never be used anymore unless connecting an outdoor antenna or VCR.
if one of your input connectors is damaged, it is not likely that is will be repaired without replacing the entire circuit board (expensive!!!). just use a different "input"- there are usually at least 3 on most TV's
This is no solution but a point in a probable direction.
A tech guy told me ALL the LCDs they have seen in their repair shop have "swollen" capacitors, this is due to voltage instability. Lowering the internal voltage regulator and replacing the swollen capacitors (which eliminate noise) apparently restores the LCD to new working quality. Without actually "seeing" my problem the tech said that should repair it. I have not tried this yet but eventually will begin that way.