Question about Dell W4200 42 in. HD-Ready Plasma Television

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2 horizontal bands of negtative image

I have a W4200HD. I am getting 2 bands of distrotion (negative image), one at the top 1/2 of the screen and the other in the bottom 1/2. It's worse at the bottom of the band and get better going up. when the image is neutral the negative images is worst. For quite some time if you turn the tv off then try and turn it back on you have to unplug it for a few seconds. this problem happened right after doing that. I have the TV open but don't have a lot of expereince with electrons. Certainly seems easy to replace boards. Can anyone tell me which board is bad?

Thanks a bunch, David Henderson

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Ok this is the part that most likely needs replacement its the main logic board. not to much to replace yourself.

Posted on Jun 30, 2008

  • Nathan Ayers
    Nathan Ayers Jun 30, 2008

    Inspect all the boards identify if anything else may be damaged and replace them from this list here.
    let me know if you have any questions or need anything else answered.


    hope this helps thanks,


    Nathan


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Hi there

Try replacing the electrolytic capacitors in the power supply section. I started with replacing (2) 860uf 180v caps just after the bridge rectifier and continued along the circuit. Some (15) or so capacitors later,it finally cleared the the horizontal bars and lines and the high pitched noise. It also fixed another intermediate problem of no video, when turning on the power.

Thank you for using FixYa. Have a nice day and please remember to rate this solution as FixYa if it helps you.

Thanks
Dustin Ellse (BearWeb)

Posted on Jun 30, 2008

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