Question about Sharp LC-26D43U Television

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Sharp LC-26D43U Power light flashes and unit won't turn on?

I have a Sharp LC-26D43U LCD tv. The unit was working fine. After being on for 3 hours, it turned itself off with an audible click. The OPC/DL led flashes 1x per second constantly. We unplugged the unit from the power source and the light stopped flashing. When we plugged it back in, the power led (green) will light up, the unit will click twice and then the OPC/DL light will resume flashing 1x per second.

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It's a power supply related problem. When it turns itself off, this it called protection mode. The TV automatically turns off to protect other parts form being damaged.
The most common problem is the Power Supply Unit or the Backlight Inverter Board.
You may have to take the TV to a repair shop to find out which one is bad. Paying a repair shop to replace the board for you maybe more than the TV is worth. If you let them diagnose it and you replace the bad circuit board yourself, it would be cheaper.

Here's a place I use to get parts for TVs:
http://www.shopjimmy.com/catalogsearch/result/index/?q=LC-26D43U&p=1
The problem is the repair shop may charge you double or three times of what the part costs at the web site link above. Then, plus labor. I just want to save you money. :)

Posted on Jun 03, 2009

  • 1 more comment 
  • Seth Moening Nov 03, 2012

    I am in the military and deployed overseas, so parts are limited. But we are a bit tech savy. We have a Electrical Engineer in the office and I am an electrican working on my degree in Electronics Engineering Tech.

  • Seth Moening Nov 03, 2012

    We have a SHARP LC-52D64U here and we are trying to fix it. Sounds like a power supply problem. It goes into protection mode. When we power it on we get following code:

  • Seth Moening Nov 03, 2012

    Power = Flash --> Power & OPC Flash --> then repeats.....

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Posted on Jan 02, 2017

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