Question about LG MU-42PM12X 42 in. HD-Ready Plasma Television

3 Answers

Half of the screen has vertical coloured lines, I was Quoted $400 to fix. Is that reasonable ? what is the problem ? I have the same problem. My screen is fine when the set is cold. After a few minutes of play the vertical lines appear on the left half only. Trying to find a solution.

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  • benjie superio Jul 24, 2012

    when u on ur tv and there is a vertical line on the screen it means u want 2 check the horiz0ntal line if there is a l0ose c0nnecti0n. And als0 check the horiz0ntal i.c. U can als0 check a c0mponents beside the h0riz0ntal ic especially the capacit0rs and resist0rs if there is leaky 0r change value.

  • Anonymous Mar 18, 2014

    fine vertical lines on half of the screen

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3 Answers

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  • 3,422 Answers

HI,

I want you to check the cable box if all the wires are attached properly because sometimes it causes disturbance and vertical lines occur.

It may also cause by something nearby to the television that is causing a magnetic field to over power the screen. Most common it is another loudspeaker or subwoofer that is near by.


Here are few more troubleshooting steps you can try:

ONE: Disconnect the power cord for 4 hours. Then when you power it back up the internal soft codes will automatically reset to factory defaults.

TWO: The whacking test is to just bang or smack the set with your hand on the back, side, top, etc., to see if there are loose connections or cold solder joints inside that are acting up. If so, the banging should knock them back to normal and the set should restore. You might have to use some creative banging and some have had to put a book or magazine under one corner to torque the chassis enough to get it to work reliably.

If the problem still persists you have to get it repaired.

Goodluck..

Posted on Feb 25, 2008

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  • Master
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It looks like a vertical deflection failure but It could also be a power supply issue as well.
There may be some cold solder joints in the vertical deflection of your TV, may be some leaky capacitors in the power supply and vertical circuitry as well.
Depending on how much you paid for the TV, the quote seems reasonable but you need to ask them if their work is guarantee and for how long.
Get the guarantee in writing if the repair center is providing it.

Posted on Feb 25, 2008

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  • Master
  • 3,587 Answers

That's a really good charge, if it's done on site..and includes labor and materials..and it works, of course

Posted on Feb 25, 2008

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