Question about LG MZ-42PZ14 42 in. Plasma Television

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New 42 inch LG LED/LCD has lots of white and black dots, snow on screen. What can I do to resolve?

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  • luttrellb Aug 07, 2010

    Didn't need it; repositioning the red/white/yellow connections did the trick.

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0) make sure the tv has not been on for a while so that the lamp has time to cool. 30 minutes is probably adequate.
1) unplug tv
2) remove lamp cover
3) remove rear exhaust cover (if your tv has one)
4) carefully and gently remove all visible dust and dirt, especially from the fans. (I used a vaccum with a brush attachment)
5) remove the lamp according to your tv's instructions. Do not touch the bulb itself. Only handle the housing.
6) clean out any more visible dust and dirt where the lamp was
7) re-insert the lamp
8) tape the lamp cover safety switch so that it is always depressed.
9) plug the tv in
10) Turn the tv on BUT DO NOT LOOK AT THE LAMP. Just verify that the fans are spinning. If a fan is not working, you should look into replacing it as the first step.
11) If the fans are spinning, put the rear exhaust cover back on.
12) You can remove the tape from the lamp cover safety switch if you want, but I left it on since I think it was causing my tv to randomly shutdown. My tv has not shut itself down since taping the switch down. Put the lamp cover back on.
13) Make sure the rear exhaust is not obstructed. I personally try to keep the rear of my tv at least 1 ft away from the wall.

Posted on Aug 07, 2010

  • luttrellb Aug 07, 2010

    Hola amigo,

    Thanks for the detailed advice, but I'm way short of having the technical comfort to do all that. Good news is that I tried one more time to manipulate the red/white/lyellow connections and, this time it worked. Dots are gone. Again, thanks for the advice.

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