I have a Sharp Aquos LC-60E79U, purchased in 2012. Suddenly I have no picture on the display, but the sound is fine. At one point, the error code displayed was two flashes of the Power indicator light followed by 3 flashes of the OPC light. However, now the lights are on constantly and no longer flashing. I was able to reset the system by unplugging for 1 minute and then holding down the power button for 10+ seconds upon plugging it back in. That restored the picture for a bit, but the symptom returned once I powered off the TV and tried to power it back on. Might I have some sort of backlight problem?
. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
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