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The chip is IC-801. On the schematic it's labeled X801 CR580005CE and in another place X801 H-IX0675CEZZ.
Any one out there want to take a crack at fixing it? With my eyesight and fumble fingers, this kind of work is beyond me. I'd be happy to pay shipping both ways plus parts & reasonable labor. I have the schematic and it's still packed for shipping.
I would just cross the whole thing off to experience, but I paid more than I should because the forked-tongue seller claimed it "worked fine." This house already has too many shelf queens.
Below, for what it's worth, are the remarks from my friend who tried to fix it.
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Well I hit a dead end on this set. I spent quite a bit of time with the schematic measuring voltages. There are a few missing voltages on that big IC chip right in the vertical section of it. Its a jungle chip containing several circuits.
I took the schematic down to Brad for him to look at. He gave me a few
pointers or `last shots` to try. He looked the ic chip up on his massive system and at a tech only Sharp distributer (he does Sharp warranty). The chip is no longer available. We looked through his old stock and came close but no dice. We figured that was why the original owner did not get it fixed.
I replaced one transistor (and those larger capacitors you replaced with ones that fit better) and did all the things suggested from Brad and it looks like the chip is bad. If its not then there is some real strange hidden surface mount part bad somewhere. Your best bet would be to hunt for another junker beat up set & switch boards. That IC chip is on a computer grade board (solder clear through the board) and the pits to get out without a solder sucker station.
We were both suprised at how advanced the insides (boards) were for its age and the fact its only a tiny color tv set ... and all the surface mount stuff it has.
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