Question about Sharp LC-52D43U 52 in. LCD HDTV

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Sharp aquos lc-52d43u you turn it on it powers up and once the screen comes on it shuts back off but the power light stays on and it will do this exact thing 3 times before it shuts off and the power green light and the opc green light flash together in a sequence 3 flashes and it will remain like that until you hit the power button again to get the same result everytime

Posted by Anonymous on

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 117 Answers

SOURCE: My Sharp Aquos LC-52D64U shut off by itself, and

sounds like power supply/ohm supplies for repair in uk

Posted on Nov 23, 2009

  • 1 Answer

SOURCE: sharp Aquos will not power on. OPC flashes green

I had it picked up to be fixed on warranty. Downside is I'm out a TV for a week.

Posted on Nov 23, 2009

  • 8457 Answers

SOURCE: no picture no sound opc light and power light

This is very common in sharp tvs.U turn it on.U get power on light stable right?U hear a click,one or twice,sometime tv is good right?Sometime POWER light and OPC light flashes?Push the power button on/off couples times will work, picture will come on.If keep trying off/on couples time after POWER and OPC flashes,don't ever stop and never get backlight and picture.Ur Video backlight board is dead must replaced.

Posted on Dec 28, 2009

DrewPalmer04
  • 325 Answers

SOURCE: The screen of my Sharp Aquos LC-46D43U is off and

This is a protection circuit that prevents the tv from coming on (to stop damage of the components) ....you need to check your voltages off the power supply and make sure they all read well (EX: 24v12v5v etc). Also look for popped capacitors that would make the values lower than need be for the tv to power on properly.
drewpalmer04_64.jpg


Once you repair the power supply then you may need to replace other components if needed (EX: backlight inverter)! The backlight inverter is what lites the screen for viewing!


I would recommend to repair immedately and stop trying to turn it on over and over...this will futher damage your tv and cost more to repair in the long-term.


Best of luck!!!
Please rate if this helps! :D

Posted on Apr 19, 2011

diodeic
  • 1622 Answers

SOURCE: Sharp LC -46SB54U will not

Hello,
Power supply board just die.It can be dead at anytimes.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Do take care.....

Posted on Jun 16, 2011

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Do you see the backlight ever coming to the screen?

You will want to open the cover, disconnect the backlight inverter and try again to see if it will stay on even without an image.

If it does it's the inverter.

if it still shuts it's most likely (not guaranteed) either the power board itself or the main board.

A good tech should be able to test the power board independantly fairly quickly.

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if your TV lights the indicator when you power it on,, your problem is your back light is busted you can replace that and when the indicator not lights the problem is your power supply you can fix it by finding defective parts by using multimeter usually the trouble that i encounter to power supply is open/change value of resistor leak capacitor and shorted diode and transistor such as regulator you're always welcome

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Comment by Guest, posted on Oct 25, 2008My Aquos has the same problem. I'm not sure how I discovered this, but when I lean the TV forward and hit the power button it will turn on every time. If the screen blacks out and I don't lean it forward when I hit the power button, the screen will just remain blank. It is very weird, but at least repeatable.

- Thank you, Guest. That did it. It definitely seems to be a problem with the TV. Tilting it and hitting the power button helped me get the video back.

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