Question about Sharp Aquos LC-37G4U 37 in. HD-Ready LCD Television
The picture is fine, but the sound suddenly stopped working. We have unplugged/replugged all the lines, turned it off and on to try to reboot, but nothing will turn the sound back on. Help?
Please be aware that this a big problem on this unit. The insulator material used by sharp to between the IC's on the AV board both on top of the boards and underneath the the AV pcb is failing. This insulator is mounted to the IC and under the metal heat sinc. Remove the back and pull the AV Board out of the unit. Use zylene or alcohol and clean all of the grey insulator from between the pins on the ic and order the replacement insulators from Sharp. Most times this will correct the no sound problem. Sometimes this has also damaged the AV pcb and it will have to be replaced. The parts that should be replaced come in a kit with sharp part # PSPKIT663WHZZ. If the kit is not available the 2 parts needed are PSPAZA663WJKZ AND PRDARA216WJFW.
Posted on Feb 05, 2008
We have a 32 inch Sharp D6 Series LCD that we purchased from Best Buy in 04/06 and had the same issue with no audio. Fortunately we had purchased the extended warranty. The part # the tech installed today is PSPKIT663WJZZ and in the remarks he put that he installed a heat kit. He said it was the insulator and that this was the recommended fix from Sharp. The part cost $10.02. I agree that Sharp should extend the warranty since they know this is an issue with this series. I did contact Sharp and had them file a complaint for the problem but I'm not sure how to get them to extend the warranty. Good Luck!
Posted on Feb 28, 2008
I had the same problem and we had the sound board repIaced. It lasted one week and we had to have it replaced again and so far it is still working. I think they used rebuilt sound boards. Thank goodness we bought the extended warranty. Sharp really needs to fix this problem. A TV that expensive shouldn't have this problem.
Posted on Feb 05, 2008
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