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Advice needed for Samsung BN44-00175A power supply

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    Advice needed for Samsung BN44-00175A power supply

    Hi Everybody,

    I'm new here and would appreciate some advice for a Samsung BN44-00175A power supply.

    About a week ago I found an abandoned Samsung 50 inch 1080p plasma HDTV at the curbside. It was quite dirty. With some help from a passerby I was able to load this heavy (107 pounds!) TV into my Pathfinder and get it home. The model number is FPT5084X/XAA, built in September, 2007. It was totally dead. I used damp paper towels to wipe down the outside as well as the inside of this set. Once I got all the dirt, dust and grunge off, my Samsung looked a lot better. Still dead as a door nail, though.

    I did some research on the model number and found that this TV was considered a pretty good set, but a bit of a power hog. Known problems on the power supply were one of the 12 amp 250 volt ceramic slow blow fuses blowing and bad 2200 MFD, 10 volt capacitors. I know looks can be deceiving when it comes to capacitors, but the 2200/10 volt capacitors all looked good. I did find one of the four fuses blown on the power supply. I ordered some replacement 12 amp 250 volt ceramic slow blow fuses. They came in this past Friday. I replaced the bad fuse, crossed my fingers and turned on the set. It came on immediately and plays perfectly! I watched it for several hours over the weekend without issue.

    What I would like to do is replace the four 2200 MFD/10 volt capacitors with 2200 MFD/16 volt 105c low esr capacitors. The capacitor locations are: CB813, CB814, CX835 and CX836. I understand these capacitors are a weak link and I'd like to get ahead of that potential problem. I've read on this forum that Panasonic capacitors were very good, but I'm not sure exactly which ones to get and where to get them. Possibly Digi-key? Does someone have specific knowledge what capacitor I should use for this model Samsung? Also, can anyone tell me why a fuse might blow and is there anything I can do to keep that from happening again? From what I've read, some owners had to replace a blown fuse every few weeks or so.

    I'm rather new to electronic repair, but I do know how to solder and can use a multimeter. I hope I posted this in the right place.

    Thank you very much, Tom

    #2
    Re: Advice needed for Samsung BN44-00175A power supply

    Here is my problem stated in a lot fewer words: Can anyone suggest a good quality capacitor to replace the four problematic original 2200 MFD 10 volt capacitors on my Samsung BN44-00175A power supply?

    Anyone?

    Thanks, Tom

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      #3
      Re: Advice needed for Samsung BN44-00175A power supply

      Dimensions? Or better, how much room is in there? Possibly post some pictures…
      Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts

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      Hardware Insights - power supply reviews and more!

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        #4
        Re: Advice needed for Samsung BN44-00175A power supply

        These are what I use:
        https://www.badcaps.net/forum/showpo...2&postcount=65
        Just measure the one you have and see which one will fit, then type in the P/N into DIGIKEY search box.
        Never stop learning
        Basic LCD TV and Monitor troubleshooting guides.
        http://www.badcaps.net/forum/showthr...956#post305956

        Voltage Regulator (LDO) testing:
        http://www.badcaps.net/forum/showthr...999#post300999

        Inverter testing using old CFL:
        http://www.badcaps.net/forum/showthr...er+testing+cfl

        Tear down pictures : Hit the ">" Show Albums and stories" on the left side
        http://s807.photobucket.com/user/budm/library/

        TV Factory reset codes listing:
        http://www.badcaps.net/forum/showthread.php?t=24809

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