55"sharp aquos led flat sreen and its making a


Call Sharp at 1-800-237-4277. There are firmware upgrades that this lcd needs to resolve issues. Good luck!

Try the main resets in the back by the a/v in and out jacks. If this does not work, call Sharp Customer Service and tell them that you already did the resets. There is a known problem with a heat dissipation pad for the onboard speakers and they will send a repair tech to replace the pad for free, even if you are out of warranty. At least that was the case with my LC-32D6U.

1. vga to vga cable
2. vga to dvi cable
3. vga to dvi cable, then dvi to component cable

Your tv must have 1 of the following:

- vga connector
- dvi connector
- component connector

Can it be heard with sound off and describe the sound a bit, buzz or high pitched sound? Not unusual for the front screen unit to make a slight buzz but I gather this is loud.

You must contact a svc co. This is a upper or lower buffer board problem and possibly a control board. Nothing you have done wrong, it just happened.

I had a similar problem. Fleeting video, then audio only for few seconds and then nothing except the green power LED blinking on and off.
I changed the power inverter board, backlight inverter boards and power supply board but still the problem is not gone.

Just 18 month old TV and out of warranty.


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