Question about Televison & Video
I have a Toshiba 51HC85. It worked completely fine until now. The problem started not too long ago with the tv taking half an hour to warm up. Until it warmed up there were white horizontal lines going all across the screen. When it was warmed up completely, the lines just disappeared.... Until the next time you tried to turn the tv on. We began to leave the tv on 24/7 so we wouldn't have to deal with waiting for the picture to clear. We recently rearranged our room, having to unplug and move the tv. Now the problem is much worse. No matter how long we keep the tv on to warm up, the lines never go away. Sometimes they fade out so you can vaguely see the picture on the screen but most of the time you can't tell anything that's being shown. Any idea what the problem is? Or what it would cost to be fixed?
The set uses a Hyper board inside that processes all signals, it is well known for this issue, board no longer available=reason is quite simple : about a dozen tiny surface mounted filter caps on that board with age dry out, at first it will work after warms up as poor caps regain some capacitance and seem to be ok.
Buy a new set, you can send that board out and have it repaired/rebuilt but the last one I saw which was under extended warranty cost about 200 just for the board rebuild.
In the last 4 years Here on Fixya I have encountered only 2 people who were able with instructions had the skill to remove the board and replace those caps, both were top notch computer repair techs.
Posted on Dec 10, 2012
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Posted on Jan 02, 2017
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