Question about Sharp Aquos LC-37G4U 37 in. HD-Ready LCD Television

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Tried the solution by the guru but the tv now keeps turning off

Tried the solution by the guru but the tv now keeps turning itself off after just a couple of seconds and the blinking green light starts again.

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  • packydilley Aug 03, 2010

    Tried the suggested solution of volume up and channel down, while tv unplugged and then plugging tv in at the same time. This allowed the tv to turn on for just a few seconds and then the picture went back to black and the green light for power is blinking on and off every second.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 53 Answers

SOURCE: No picture, but power is on...

How many times does the POWER led blink per sec? (dont worry about the OPC)

2x = power supply (not as expensive to fix)
3x = Main board (expensive to fix)

Posted on Mar 14, 2008

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ginko
  • 19396 Answers

SOURCE: Phillips 51in tv rear projection power button blinking green

The TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Posted on May 22, 2009

dsacco86
  • 1077 Answers

SOURCE: power light keeps blinking green with no display

I would try leaving the TV unplugged for 30 minutes to let the TV reset itself.
If that doesn't work, most likely the TV has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

Posted on Jun 28, 2009

  • 8457 Answers

SOURCE: power light blinking green and cannot turn off or display anythin

power inverter board is dead.
need a new one.

Posted on Sep 14, 2009

bshldn
  • 736 Answers

SOURCE: when i turn on my tv the green power light blinks and the tv does

There is a procedure called and Industry INIT. The reason I cannot post it is that if it is done incorrectly it can wipe the memory of your television. Also if you get a yellow screen versus a red screen versus a green screen there are different steps to peform next. To attempt and Industry INIT you would call 800-237-4277 pressing 1 for each of the prompts. If the Industry INIT fails the representative will direct you to your local service provider. If you were interested in performing the repairs on your own partstore.com has parts.

Posted on May 10, 2010

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