Question about Toshiba 42H81 42" Rear Projection Television
Hi all, I hope someone can give some guidance. I have a 27" JVC TV Model AV-27D302. It is about 3 years old. A black line has appeared across the top of the screen. The line is about 1 - 1 1/2" thick. Under the black line is a double image - the top of the screen inverted on top of the regular picture (sorry if this sounds confusing. It is hard to describe in words!). I have looked in the manuals, but did not find anything in the troubleshooting section that helped. I looked in the back of the TV - no horizontal or vertical control buttons to adjust. I disconnected the cable line and the problem is still there, so it is not my cable signal. Any suggestions before I carry it to a service center? Thanks, Brendan Just as a note before = I dont know what number my tv is, its a Toshiba from around 1995 and its about 30 inches, I couldnt find a catagory for it) My TV has been dying slowly for the past few months. It started with just one line at the top of the screen all the way across the top, that was about an inch wide. Solid black and it doesnt change, but recently it has been getting bigger and is now about 3 inches wide. I noticed the other day that if I swap to a VHS tape and the grey/black crackly screen ( that comes on before you put the movie in) comes on then the lines are gone and the whole screen is crackly, but as soon as you put a movie in then the line comes back. It cant be the tube or the actual color things in the screen because the crackly screen is fine. So what would be the answer?
This is for the original problem.. Not the second post.
It's a problem in the horizontal deflection circuit. The parts will be available, but you will be in for some daignostic repairs also to find out why it failing or if it has failed on it's own.
There should be a few caps near the IC (an LA7840) that could also be causing the problem. Click the link, it will make it easier to locate the part inside.
This is the kind of repair best left to a TV tech, but get it done now and it won't cost anywhere near as much as it will later.
Posted on Apr 18, 2008
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Posted on Jan 02, 2017
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