Question about LG 32LH20 - 32" Class / 720p / 60Hz / LCD HDTV

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LG 32LH20 colors distorted

My 32LH20 stopped working one day (assumed lightning hit, as other devices in the house were damaged as well). The power light would not turn on at all, no red standby, no response to buttons. I replaced the input board, EAX56738105(0), and I am now able to power on the TV, but the pictures and text have a rainbow of colors around them. This occurs on all inputs. Here are a couple examples I then attempted to change the power board to see if that was an issue. After changing the board, nothing had changed. What else could be causing this problem, other than the input board being bad? The replacement I ordered was off ebay, used. :(

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  • maniac_beoul
    maniac_beoul Dec 11, 2012

    Grabbed one off ebay, I'll update when I try it. Thanks.

  • Erik Boeselager
    Erik Boeselager Dec 11, 2012

    Hope it works for you.



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  • 63 Answers

The only thing I could think of is a tcon board, if that isn't what it's called by that tv, it's also called something like a LCD digital board to timing board. Usually it's right behind the display inside.

Posted on Dec 11, 2012


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Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

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Lightning strike

Lightning hits do some nasty damage to electronics.
Alot of times that type of repair is part of an insurance claim. The insurance company requires estimates and will repair them up to the cost of replacement.

If you arent dealing with an insurance claim on this I'd still recommend a professional estimate.
Lightning damage sometimes is confined to the power supply and once repaired could be fine bit in my experience most items that take a nasty hit are a write off.

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