Question about LG 37LC7D 37 in. LCD HDTV

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My LG 720P turns off by itself.

I turn it on it stays on, then shuts off after a few seconds.

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This is a problem with the power supply. If your out of warranty you have the choice of taking the t.v. in for repair and have the board replaced for $400 bucks or do some disassembling of your own and fix the power supply board yourself. The power supply will look similar to thisMy LG 720P turns off by itself. - 1c9f6e8.jpg

Check the capacitors for any bulging at the tops. they should be perfectly flat. Any bulging is a sign of a bad capacitor. LG uses Samxon capacitors on their boards. They will be smaller and green. rated 2200µF 10V. If replacing I suggest going to 2200µF 13-16V, so you don't run into the same problem. Where ever you take your board to get soldered should sell the capacitor. Or if soldering yourself check around online or call your local tv repair shops. It should only be 2-3 dollars.

Posted on Feb 10, 2009

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