Question about LG 52SX4D 52" HDTV

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Turns ON than right back OFF!

The tv cycles and turns on but within 5 sec. it turns right back off into standby mode with the lamp indicator flashing red.
I bought an LG 52SX4D 52 in. I bought it as a floor model at Good Guys when it was closing so I lucked out of a warranty. It's been 3 years and the lamp just went out. I received the new lamp a couple of weeks ago, installed it, worked fine till the next morning when it started acting up. The tv would not turn on 50% of the time which would lead to the lamp indicator flashing red. I had the ballast replaced about a month ago before the lamp went out so I am unsure of what the problem is since the bulb and ballast are pretty much new. Also when the new lamp came in the cords seemed to be switched, flipped in a sense compared to the old lamp, but I was told that it would be fine as long as the lamp is the correct model. So the tv turns on, which makes me believe that the lamp and ballast are fine.
Any solutions or comments will be appreciated.

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  • Anonymous Dec 25, 2007

    same problem email me at

  • Anonymous Jan 04, 2008

    Mine began to turn off after a few minutes of viewing and gradually got worse. Eventually TV wiould not come on. Bulb is oste 2 weeks old...

  • Bullfrogj3 Feb 28, 2008

    Same here. It's getting worse as well. It will only stay on for a few minutes at a time.

  • tlhokc Mar 15, 2008

    Same problem. Red light flashing. Won't turn on. What now?

  • Anonymous Mar 18, 2008


  • tlhokc Jul 13, 2008

    Any suggestions?

  • Anonymous Sep 30, 2008

    I have this same problem and my tv guy just left at noon. I replaced bulb and then tv just started powering up and never came on. red light indicator and then turns off. My tv man told me i need a new color wheel and digital mirror device. cost to replace both plus labor 892.30. i will keep you posted on how this turns out for me. nothing but problems with this floor model from best buy.

  • Vivian King Oct 30, 2008

    Turns ON than right back OFF! after being on for 15 seconds.


  • posberg Nov 14, 2008

    TV was working fine then the sound went out. Unpluged TV and worked again. Then a day later when I turned the TV on the TV had the white lights cycling, like it was turning on and then sold red light comes on (top light) and blinking red light by the image of the bulb....what should I do?



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I called Service Care where I live they charged me $75 to come out ant $25 pick up and delivery charge. They took the television back to their shop and said they would have to order the parts needed. The tech called back and said the problem was the lamp & ballast was bad. He said the cost of repair would be $576 for parts and $225 for labor. Whew!!!!! I could just get another TV, just not another 52". Oh well......... any suggestion? v2kmom

Posted on Nov 13, 2008


Bad ballast. Go to - or

Posted on Sep 09, 2008

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Yup, same problem here.

Posted on Feb 28, 2008

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