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Oct 16, 2012 - My Proscan 42 tv is turning on and off by itself, changing channels on it's ... that is next to the power connection plug is discolored at the board.
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https://www.youtube.com/watch?v=TC908vQ8jaw
Jan 17, 2013 - Uploaded by ShopJimmy.com
RCA TV Repair for Blank Screen TV Will Not Power On How to fix... I have a Proscan PLDED3273A-E. Looks like my problem is the L1 (brown spot on board) - any suggestions? ... before it turns off the audio still works and the image still comes out if I ...Recently I tried turning it on and I get no standby light.
Well without actually opening it up and determining where the problem is, it's unlikely you will get it to come back on. I suspect something wrong with the power supply but it could be something else also.
Does the audio still work normally? If so uits most likely the inverter board which has failed and you can get a replacement inverter from www.tvcircuitboards.com
Most likely it's the power supply board that went out. (part of it still works is why you get the blue LED when you plug it in.)
If you decide to try to fix it yourself, BE CAREFUL! The power supply board has capacitors that can hold high voltages for many hours after the TV's been unplugged.The equivalent of sticking your finger in a light socket.
You'll need the part number off the power supply to get a replacement.
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