Question about LG 52SX4D 52" HDTV

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Green picture My TV powers up and I can actually watch TV, DVD, or via any input, but my picture is green. It's not cable related as this happens with nothing conencted and in the menu. So far I looked at the bulb and noticed that the element looked ok, but the glass had a burn mark on the right hand side (looking at the bulb). I replaced the bulb and the problem still exists. Thinking that one of the kids hit something on the remote, I've reset the TV back to factory defaultsw but the screen is still green. There are no flashing lights on the front, the TV is acting normal except for the green screen. It does sound a little quiet, so I'm thinking tha tthe motor for the color wheel may be the problem. Any help would be GREATLY appreciated.

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  • mtbrider21 Aug 01, 2008

    I've looked at the color wheel when I removed the bulb and housing the bulb sits in. The color wheel is sealed so I can't actually see any thing but part of the color wheel. The tech that upgraded the firmware last year told me over the phone that it could be the motor that turns the color wheel. I've got everything running through a surge protector/line conditioner and haven't had any spikes recently, and even when the power has gone out at the house, that protector has never tripped.



    On another note, the TV does sounds a little quiet compared to what it use to. I'm sure that I can't hear it "spin up" when I turn it on like it use to.

  • mtbrider21 Aug 21, 2008

    Thanks for the comments, but I have a tech working on it right now. He ran through the standard scope if troubleshooting tricks and the issue is still happening. One thing that he noticed is that when the input is switched to coax, the screen is black and white, so he is thinking that it might be something on a board. He said that the problem is that the TV doesn't have red, only green and blue.

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If you can see enough of it - you can bypass the lamp cover switch with a non-metal object - have someone turn the tv on and see if it is spinning - my guess is it is or the tv would turn off
scott

Posted on Aug 01, 2008

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I dont think it the color wheel - to make it green the glass would of come off and the tv would be vibrating badly. to check pull the lamp out and with a flash light look at the color wheel -
you most likely got a surge that glitched the eeprom - you will need the service remote to adj the white balance
thanks
scott

Posted on Aug 01, 2008

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