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My LG TV powers up with no least it is so dark, you cannot see anything. My wife powered off while watching netflix. How can we reset since we cannot see the monitor

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Did you perform a flash light test on the unit? If you see something it could be the inverter board not lighting up the leds. If you also have no audio it might be your main board.

Posted on Apr 30, 2017


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Posted on Jan 02, 2017


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I have a LG 50 LCD TV Model: 50LN5700-UH that has a black screen. There are a couple of things I have tested and replaced. First off there is audio but just a black screen. I turned off the lights and looked for signs of back lights. When I did this there were no visible signs of lights. In addition, I did the flashlight test. Which showed visible signs of lettering on the screen with the flashlight. Which if I understand correctly it may determine that the T-Con board is functional. I ordered additional LCD's from Shop Jimmy and replaced the bad sticks. About half were replaced. I reassembled the TV and I am still getting no video, but I still have audio. However, this time all the LCD's are functioning so now the screen is still more grey than black because of the working LCD's I replaced. What voltages and at what points should I be testing to narrow down the problem, or what other problem-solving technique should I be testing? One other thing I should mention is there no visible signs of swollen capacitors or any signs of burn marks. I am 99% sure I connected all of the cabling up correctly, not 100% since this was my first attempt but I am a little less confident I put the filters in the correct way. I had the TV disassembled while I was waiting on the LCD's to ship and when I re-assembled I was less confident if I picked up all 3 or 4 filters and set them down, or if I make have flipped the filters to keep the circuit board on the front cover from being damaged. Hope that make since.

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