Question about Sharp LC-52D43U 52 in. LCD HDTV
Posted by Anonymous on
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Posted on Jan 02, 2017
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
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.
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
SOURCE: Sharp LC -46SB54U will not
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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