Question about Sharp Aquos LC-22SV6U 22 in. LCD EDTV

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No sound I have a model LC-22SV6UM. a green light stays on where there is an OCP indicator and I get no sound.

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I have ran into this symptom on that set. What I found after hours of troubleshooting was that on the bottom of the circuit board that connects to the speakers inside of the set, there is a heat transfer putty that actually melted allowing the audio heatsink to touch the bottom of the circuit board. There were burn marks where the piece of metal heatsink had arced across. The disassembly/reassembly process was the hardest part of this repair because of the amount of screws and the way the boards were mounted on top of each other in close proximity. If you attempt this yourself look for a small 10 ohm surface mount resistor to open on bottom of board or any other charred component. Then discard or resecure heatsink that cuased problem. Either will work. Good luck, Russmann.

Posted on Jun 09, 2008

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