Samsung HPT4254x Plasma, constant clicking - my first component level repair!

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  • AFajitas
    Senior Member
    • Dec 2014
    • 183
    • USA
    #1

    Samsung HPT4254x Plasma, constant clicking - my first component level repair!

    Wow, I got super lucky.

    I read up a bit and found that there were a handful of components that went bad on these psu's normally. The two fuses checked good, so I started with Mosfet QX801 and noticed that I was getting an odd reading from drain to source. I unsoldered it and removed it from the heatsink and tested it out of circuit. This video was helpful for me to understand how to test mosfets with a DMM. It tested good out of circuit. Resoldered it back in, and now TV is working great. I used this blog post to help me identify components that commonly go bad on this board or have solder joint issues.

    Turned out it was just a bad solder joint here. Paid 40 bucks for this TV and spent about 20 mins troubleshooting, and now she's working great.

    Last edited by AFajitas; 01-21-2015, 03:16 PM.
    Tags: None
    • mmartell
      Badcaps Legend
      • Oct 2013
      • 3189
      • Canada
      #2
      Re: Samsung HPT4254x Plasma, constant clicking - my first component level repair!

      Excellent! But be warned: though it is somewhat healthier than crack it can become just as addictive j/k congrats and enjoy your new tv.

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