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Philips 50" Plasma 50PF7220A/37

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    Philips 50" Plasma 50PF7220A/37

    Hello all ~

    I have already replaced the two swollen caps (C8059 and C8060) on this, and am still getting the red light that blinks 7 times on the front (repeating) and on the power supply itself I am still getting the green light blinking 4 times (repeating).

    Does anyone know what this combination indicates, or how I can look that up for myself? Error code information (especially for the green blinking sequence on the PSU itself) and the service manuals for this tv set seem hard to come by.

    Other information:
    When plugged in each and every time, there are two green lights that light up at the bottom center of the power supply unit. They are accompanied by two clicking sounds. One comes on a moment before the other, but then both turn off within two seconds as the power supply shuts down. While this is happening, a small green light on the logic board (the board that sits underneath the power supply) lights for about 1 second and then shuts off.
    Just afterward, I get the separate "4 times repeating blinking green light" that I mentioned in the above paragraph. This one is on the underside of a small board that juts out perpendicularly from the PSU itself, and it located in the upper left hand corner of the PSU.
    ___________________

    At this point, I can't tell if my YSUS board is damaged, and if this is shutting down the PSU, or if the logic board is damaged, or if the PSU is faulty in and of itself.

    I have tried disconnecting the YSUS and the XSUS cables, one at a time and separately, with no change in the result. I also tried to disconnect the logic board cable from the PSU and here the green blinking code on the PSU itself changed from 4 times (repeating) to 13 times (repeating). That seems to indicate that the logic board may be good because one would think that if it were bad I would get the 13 times (repeating) blinking green light on the PSU whether the logic board was connected or not to the PSU.

    The 7 red light / 4 green light blink combination was the same both before and after I replaced the two capacitors mentioned above.

    Where do I go from here?
    Last edited by kca; 02-25-2016, 10:14 PM.

    #2
    Re: Philips 50" Plasma 50PF7220A/37

    A couple things to consider:

    1) All of the seasoned techs(not me lol!) here will want you to upload pictures of the boards

    2) I'd say that if you found 2 swollen caps then you should replace them ALL, not just the swollen ones. There could very well be another bad on in there that has not shown visible signs

    Comment


      #3
      Re: Philips 50" Plasma 50PF7220A/37

      I have repaired Phillips 50" Plasma before. The lights are a normal startup sequence before either the TV starts or shuts off. The POWER SUPPLIES are known for terrible capacitors!

      Look at the last post, where I repaired a unit similar to yours! https://www.badcaps.net/forum/showth...t=13509&page=3


      Is this the PSU with the Green and Black SAMXON capacitors? If it is, I would also take martyparish's suggestion, and replace ALL of them on the power supply! You may not need to replace the all of large high voltage ones, but make sure to check them! All the others MUST be replaced, phillips used bad SAMXONs in these!

      YES, that means even the little small 1uf caps, and the hard to get capacitors hidden under the heatsinks!

      High hopes for your repair!
      ZnsaneRyder

      Comment


        #4
        Re: Philips 50" Plasma 50PF7220A/37

        Funny, I just acquired a phillips 42pf9631d/37

        @ZnsaneRyder yes samxon crap for sure!!!

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