Question about Samsung HP-R4272 42 in. Plasma HDTV

1 Answer

The problem started with upper 1/3 of screen getting white bands then no picture at all not even menu still have sound.

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  • BigBob Apr 23, 2010

    Thank you for your response/ are these boards identified when I remove the back? If not how do I identify them? What is the best way to discharge the High Voltage prior to working on it?

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  • Master
  • 8,619 Answers

Hi


Thanks for using FixYa. You’ll need to check the X and Y sustain buffer boards. When either of these boards goes bad common problems include negative image, no image, vertical or horizontal stripes on picture, turns on and than turns off, and many more. You’ll need to open the back off the TV and check for any swollen/bulged capacitors on these boards and replace whichever has gone bad. If still the issue is not resolved, then please check the power supply board. All this is only recommended if you have electrical expertise & know how to solder/re-solder components as these units contain high voltages even when switched off. Please do accept the solution if the issue is resolved or post a comment further assistance.


Thanks
Rylee

Posted on Apr 23, 2010

  • Rylee Smith
    Rylee Smith Apr 23, 2010

    Turn
    off and unplug the TV for at least 1 hour (this will drain off
    current from all components especially capacitors) before you perform any
    repairs. Please check this picture to locate the boards:







    Please do
    accept the solution if the issue is resolved or else revert for further
    assistance.





    Thanks



    Rylee

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