Question about LG 42LC7D-UB Television

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I have the exact same issue as the unsolved problem below on this page: I have a LG 42LC7D that is about 3 years old. A Problem with the LG 42LC7D-UB Television I have a LG 42LC7D that is about 3 years old. A few weeks ago it started this: When turning on, the green light blinks a few times and then a blank screen appears. I then turn the tv off. After doing this 4-5 times, it finally turns on normally and operates fine. Any suggestions? Thanks

Posted by Anonymous on

  • John Martin Nov 25, 2011

    Did you ever get a solution for the problem? I have it too, I think the so called elco capacitor is bad.

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The power on problem is a cap in the power on circuit. The loss of signal for an areal is delayed. Nothing you can for DIY.It needs repair shop visit.

Posted on Feb 12, 2011

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Most likely the power supply board.

Lie the tv down on a bed and unscrew the back. Its only about 9 screws around the edge and look at the power board, on the left, see if theres any burn marks.

I have a brand new board I bought the other day for the same issue but before I replaced it, stupidly, I checked with LG and turns out mine is still under warranty so I'm stuck with a new board.

Let me know if you want it. I'll match any price you can find online.

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not sure what you're referring to as a "main board", but heres the LCD Control Board for the TV

http://cgi.ebay.com/LG-42LC7D-UB-LCD-CONTROL-BOARD-6870C-0119A_W0QQitemZ150277759127QQcmdZViewItem

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