Question about Philips 42PF5421 42 in. LCD Television

2 Answers

My Philips 42PF5421 tv keeps blowing the fuse. I have tried three in as many days but pop! I am replacing it with 3amp. ANy ideas?

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  • Ben Dover Aug 21, 2010

    follow welcome Jee advice, you be glad you did

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2 Answers

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  • Master
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3.15A fuse is correct one, if it gets blow that means power supply board is defective and will be replaced.<br />I disagree with *<span id="ctl00_ctl00_MainColumn_CenterColumn_ThreadSolutions1_Repeater1_ctl00_lblSolution">Buldging Capacitors* idea because output chips are shorted out in power supply board and blowing fuse that does not happen with bulge capacitors.<br />Power supply board part number is </span>310432836212 and price would be around $140 or so<br /><span id="ctl00_ctl00_MainColumn_CenterColumn_ThreadSolutions1_Repeater1_ctl00_lblSolution">Thanks.<br /><br /></span>

Posted on Aug 20, 2010

  • Shahid Electronics
    Shahid Electronics Aug 20, 2010

    Sorry about above post that got messed up with unknown reasons.

    3.15A fuse is correct one, if it gets blow that
    means power supply board is defective and will be replaced.
    I
    disagree with *Buldging
    Capacitors* idea because output chips are shorted out in power supply
    board and blowing fuse that does not happen with bulge capacitors.
    Power supply board part number is 310432836212 and
    price would be around $140 or so


  • muebe Sep 28, 2010

    Great answer Jee from one of FixYa's Great Online Techs!

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  • Philips Master
  • 3,866 Answers

The power board is what is my concern here.

Things to check
1. Buldging Capacitors

The power board is in distress if its poping that many fuses, I would just have you replace the power board.

Your full model number was not displayed is it a 21 D, B or C

you can find the part HERE


thanks and be sure to rate

Posted on Aug 20, 2010

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