I have done a lot of searching and have not hit on my symptoms. My unit powers up fine and without the cable box, or any input powered it goes into the "searching for signal" screen and stays on. Upon powering the cable box, the unit began to show a yellow/green snow and a harsh static was played through the speakers at what seemed full volume. This would last ten seconds or so, and I was unable to affect it with power, mute, input, or menu. The unit would then power off, recycle, and come on fine.
This has gradually grown into a longer period of tries and recycles, where now it takes ten minutes of various screen statics and sometimes harsh sound, sometimes not. Finally, a weak picture of shadows, then maybe one more recycle and the unit works fine. I t will continue to work fine for the rest of the day. It seems like a "warm up" is needed for some component.
I have taken the back off, gently cleaned all the dust off, inspected the boards, caps, connections, and solder, and everything looks good.
I replaced the cable box with a new one Saturday. No change.
I have read the basic troubleshooting stickys.
AND the damn TV works fine after this start-up horror! (full volume static)
This has gradually grown into a longer period of tries and recycles, where now it takes ten minutes of various screen statics and sometimes harsh sound, sometimes not. Finally, a weak picture of shadows, then maybe one more recycle and the unit works fine. I t will continue to work fine for the rest of the day. It seems like a "warm up" is needed for some component.
I have taken the back off, gently cleaned all the dust off, inspected the boards, caps, connections, and solder, and everything looks good.
I replaced the cable box with a new one Saturday. No change.
I have read the basic troubleshooting stickys.
AND the damn TV works fine after this start-up horror! (full volume static)
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