Question about Sharp Aquos LC-42D62U 42 in. LCD HDTV
Hi, I have a Sharp Aquos 52 in. TV model LC-52D78UN, I unplugged it to rearrange some wires from the outlet and when I plugged it back in the Power and OPC lights flash twice continuously but the TV will not turn on. If I try and turn it on, the Power light stays on for like 1 second and then it resumes flashing twice with the OPC light. Any clue as to how to fix it?
Follow this instruction and fix it. God bless you
Press the power button on the TV and not the remote control. It is possible the remote control's batteries are dead. If the TV does turn on, you know you need to replace the remote's batteries.
Disconnect the power cable from the TV, then insert it into a different electrical outlet. On occasion outlets are damaged, and do not provide a power current. If this is the case, changing the electrical outlet connection corrects the problem.
Switch the television's input to a different connection. It may be possible you have the wrong input selected, causing the TV to give off a black screen.
Connect a different source device (such as a DVD player or cable receiver) to the television. If the source equipment is damaged, you will not receive an image from the hardware. If the TV still does not display an image, there is an electrical shortage in the interior of the TV. To see if there is any way to fix this issue, you need to take it into a local TV repair shop.
Read more: http://www.ehow.com/how_7308433_flat-screen-tv-won_t-turn.html#ixzz2ZROWyhSB
Posted on Jul 18, 2013
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Posted on Jan 02, 2017
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:
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
This tends to be the result of an electrolytic capacitor somewhere, either on the main board or the power supply board bursting due to overheating. In this case you can pull off the back paneling and review the boards over to make sure all the capacitors are in excellent condition. After identifying a bad capacitor you can buy one from an electronics store in the area or a reputable online source. To replace it this will require soldering. Look for a capacitor with the same uF, the voltage can be the same or higher. Make sure all the power is out of the system before servicing, also make sure to note capacitor polarity observing the negative indicator line on the side. If your not sure this can be done at home I would recommend taking it in to a servicing shop. If you do not know what a capacitor looks like do a google image seatch for both examples of a good and bad copacitor. I honestly hope it's something much simpler, I hope this helped and good luck.
Posted on Mar 03, 2010
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