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I have a Sharp AQUOS Quattron ++ 80" that just stopped working and I can not get it to turn on. Model LC-80UQ17U

TV cuts on and off then blinks 3 times slow and 1 time fast. "Flash Light Test" shows no image or menu on screen. No sound that i know of. LEDs not lighting up. This condition came on suddenly with no pre-cursor or warning. One day the TV worked the next it did not. It IS on a surge protector. I have already replace the Power Board and the T-Con board with no luck. I really don't want to spend another $100 on the Main Board if it isn't the problem. Any info would be greatly appreciated.

Posted by James Brochey on

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5 Related Answers

Anonymous

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SOURCE: Sharp 42' LC-62C42U main circuit board needs replacement

I would recommend Shopjimmy.com.
Parts are at reasonable prices. Compare with the prices at Partstore.com and you'll see what I mean.

Posted on Aug 07, 2009

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Anonymous

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SOURCE: Sharp AQUOS LC-46D85U green LEDs blinking, no picture, no sound

Sharp warranty is the way to go.

Posted on Oct 25, 2009

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John Cunningham

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SOURCE: If a warning light indicates the CPU is not functioning, does that mean I have to get a new processor?

Yes! judging by all the cascade break downs, I would suggest replacing the motherboard, HP has a history with motherboard issues.

Posted on Mar 29, 2012

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vinceisaac

francoise cleofas

  • 2432 Answers

SOURCE: Sharp Aquos LC-C3237U no picture backlight OK green light on

check if their is a signal on voltages around 3.3v at the inverter board if none their is a problem in the board which is in the processor.

Posted on Aug 31, 2012

gopakumarg43

The Knight

  • 76823 Answers

SOURCE: I forgot the parental control code Aquos Quattron TV Sharp LC-40LE835U, change the factory code, wanting to restore everything, ask me the code, and forget to the code. Note: use codes 0000,1234,3

Refer its user manual for more details. It will have the default reset code.

Posted on Mar 17, 2014

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