Question about Philips 42FD9954 42 in. Plasma HDTV

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I have a Phillips 42in plasma 42PF7321D/37 when you turn tv on green light lights up you have sound and picture flickers a few times and then picture is fine and looks great. Noticed menus are hard to see and every once and awile you will get a flashing red light and nothing ?

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  • Philips Master
  • 1,210 Answers

I would certainly say the problem is in your power supply. Chances are real good that two capacitors are bad! You will have to remove the back cover...this is tedious and requires patience. You will be concerned with the board on the left side. You will have to remove the screws on the power board to lift it and see the top of this board. You should see at least one bulged capacitor. Replace, and you can bet the other next to it is bad. And another note..there may be a small cap at about 16volts at 10Mf that needs attention. These are clues and should help with repairs! Thanks for asking.

Posted on Aug 21, 2010

  • 2 more comments 
  • cryan20874 Aug 21, 2010

    Where can I buy the new capacitors?

  • matt martin
    matt martin Aug 22, 2010

    Try 'Matelectronics.com' or Jameco.com. Always be sure to get the correct Microfarad caps. And you may use the next higher voltage, if not the same voltagee. For example..25 volts at 1200 Mfs may be sustitted for 35 volts at 1200Mfs. This goes for many electrolytic radial capacitors. You cannot down size! Another note..you will want to use a high temperture capacitor. I recommend 105 degree caps and not the 85 degree cap.Thanks for asking. I will be listening for you!

  • cryan20874 Aug 24, 2010

    I am a auto technician and am experienced soldering wires, etc. would this be something i can tackle myself or should I have a specialist do it ?

  • matt martin
    matt martin Aug 24, 2010

    I believe you can! Be sure you have a pad ,and a sharpie marker,and a ziplock bag. This way you can mark the screws as you take the back cover off! Thanks for asking!

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