Question about LG 42PX4DV 42 in. EDTV-Ready Plasma Television

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Plasma 42inch TV

My LG 42" has started to display a breakdown of the picture after being on for 5-36hrs in a room temperature of 60-65F and 2-3 hrs at an ambient temperature of 65F and up where there is picture breakthrough behind the main picture,skin tones and scenes with white walls and similar go silvery and if left in that state for a while the screen has a lot of pixellation.If I switch to standby for 10-15 minutes then switch back on the fault has disappeared for a short while(about 1 hr) before starting again The set is less than a year old but the sellers have disappeared and LG don't have the courtesy to reply to my email.

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  • Peter Searle Dec 23, 2006

    Sorry I posted twice.

  • lunama2002 Mar 15, 2009

    40 inch with red and whit color particles showing while picture is clear but only on lef side of screen

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Same thing with my 42 lg plasma hdpl, had it only 3 mos and last night same thing with the wierd degardation of the picture with a wolfen type appearance. "wolfen" the movie where a werewolf sees in the dark wierd....called LG this am and a servicer is coming to pick it up today...will keep ya'll posted as to what the peoblem was

Posted on Feb 26, 2008

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I repaired an LG with a similar problem. the picture started out ok but after 1/2 hour the foreheads went pastel and blotchy in the backround. I replaced the CTRL board.

Posted on Nov 22, 2007

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I'm guessing this is a problem on the Y-SUS PCB or the Control PCB. Call LG and they will find you a servicer. Most LG Plasmas have 2 year warranties and they are covered in your home. It kinda sucks but it is better now than after your warranty expires this repair would cost several hundred dollars.

Posted on Apr 26, 2007

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As you may have guessed by now, the breakdown is likely being caused by a bad connection or ground. May need resoldering unless it is a semiconductor breaking down. If you can find a service center that services LG (low grade) products, I would take it there for repair. You have probably noticed a lot of heat escaping from the top of the unit after it has been on awhile. That is a big problem with plasma TV's as heat is the biggest destroyer of electronic parts that I know of (well after lightening storms). A temporary solution would be to install some fans blowing air up from the bottom back of the unit to allow it to play longer before getting too hot. Or watch less TV

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