Sometning fell on the mother board of my Tv when i was adjusting Yokes, suddenly picture on the screen went off, but sound was there. Later on, when I selected Sub mode both picture & sound came but in the main mode only sound comes and no pciture.
Please advice me
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This sounds like you accidentally hit the input button on your remote. It will either be INPUT or SOURCE on you remote. Turn on your TV and source(cable box) and hit one of those buttons until your picture comes back
Hi, I disagree with info provided, if screen of your LG lcd tv becomes green that means inverter board is working and lcd tv does not have convergence ICs. Please unplug tv from ac wall socket for minute to get it reset, replug back in and turn it On and check its picture. If still showing green screen then change input source with remote, if tv shows same green screen on all inputs that means its either lcd panel problem or digital signal processor got bad loacted on main board. Local tv repairman is needed to confirm and fix it. Thanks.
your dose not use lamp, it is a crt driven TV . One of com problems for that model was loose connection on one of the yokes. When that normaly happens , there is a sudden flash and screen gose dark and sometimes it can flash back if not you get red light blinks. If you you know where the yokes are at check little small board . A small mirror will come in handy, access from front of TV. adios ... john
I have the same problem the pic went out but have sound. where do i go to get the Yboard? do i need a special number off of it or something? I took it to repair shop and he said it would be like 500 dollarss to repair. but i see all kind of yboards on ebay for like 150?? how do I know what one to buy?
Sounds like the Main mother board is the problem. When the processor chip overheats, the programming information passing through the chip slows down. Most cases, replacing the main mother board will fix the problem.
May have cold solder joints-Broken joints -on the connectors on the deflection yokes on one or more crts.THis is the connector that the cables from the main chassis to the yokes plug in .They get cold joints that lose connection when they heat up on some Mitsubishi sets.Also may be bad solder joints on the vertical output IC on the deflection board.