Sony PS4 ADP400DR - help needed figuring out shorted pads under capacitor C 31

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  • supravit2000
    Member
    • Aug 2021
    • 11
    • bulgaria

    #1

    Sony PS4 ADP400DR - help needed figuring out shorted pads under capacitor C 31

    Hi!

    A friend of mine gave me a dead PS5 to look at. I am totally inexperienced, but when a damage is simple (i.e. failed DAP41 on PS4s, etc.), when replacing just the IC and the other very common failing parts of these consoles, problem is fixed. So I checked the voltage of the PSU - none was present. Model is ADP 400DR. I have a bunch of spare parts around, so first thing I did was to replace the IC DAP 053 (they seem quite expensive, so I put a replacement unit - TEA2016AAT. When plugged to the power outlet, 12V did come present.
    So I reassembled the PS5 and pressed the power button... to see that it was still dead. I reopened the PSU again and found out that the 12V output was gone again and the ic TEA2016AAT​ was fried (it was getting hot). After watching some youtube clips for potential solution, I tried changing couple of FET's (Q31, Q34) and so on.. but what bothers me is that the cap labelled C31 always has BOTH pads shorted to ground... I took out so many parts out trying to find the reason for that short, but just can't find it. The diodes read fine, resistors look good (I have a list to look at), no other caps are shorted... If somebody has had similar experience, I will be very happy if you help me with some clues. I attach a pic with red circle of the common ground, that cap pads, the ground of the is DAP053 and also a Gate of mosfet 10N60M2 that goes to ground...

    Thanks!!

  • gcrezz
    GameConsoleRezz
    • Jul 2024
    • 14
    • United States

    #2
    It sounds like the PSU might be ok and it's going into protection mode due to a fault on the motherboard itself. Have you tried looking at the board itself yet?

    Comment

    • Puuhis79
      Member
      • Nov 2020
      • 27
      • Finland

      #3
      Can you test psu with dc-load, psu is rated more than 30A could it be something to do with inc of load…

      Comment

      • supravit2000
        Member
        • Aug 2021
        • 11
        • bulgaria

        #4
        Dear folks, don't bother on that issue - the console was sold long ago for spare parts. I removed literally all the caps, resistors and ic's on the board - and the short was still there. Somebody with proper knowledge could make use of it, I couldn't. Thanks anyway!!!

        Comment

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