ossc hot during use

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  • August 16, 2019 at 3:10 PM #27478
    ludovictor
    Participant

      Which voltage point can I measured ? I will make a list of each point that you ask me to measure and we will see if all regulator are ok.

      Edit : I don’t want to miss important voltage point. Marqs, can you tell me which voltage points are important to measure ?

      August 17, 2019 at 10:38 AM #27492
      ludovictor
      Participant

        I measured all voltage pins from regulator. This is values :
        Pin n°_____1______2______3______4______5
        U7:_______3.28____0_____5.15____0_____1.88
        U9:_______3.28____0_____3.28____0_____1.88
        U15/16:___3.28____0_____3.28____0_____1.79
        U6:_______5.16____0_____5.16____0_____3.26
        U12/14:___3.28____0_____3.28____0_____1.18
        U13:______3.28____0_____3.28____0_____2.46
        U5:______5.15____0_____3.29____0

        What do you think about these values ? I find U13 strange with the 2.46V.

        August 18, 2019 at 8:43 PM #27536
        marqs
        Participant

          I suppose 5.15V on U7 pin 3 is typo (pin 1 and 3 are connected together), otherwise everything looks as should.

          0.4A at 5.15V is perfectly normal, so the problem might be that digitizer and FPGA bottom ground/thermal pads are not soldered properly on PCB. If that is the case, heat transfer from those chips is bad which can create hotspots and eventually cause instability when their temperature rises high enough. The way to fix that would be reflowing/resoldering the ground pads on the bottom of the ICs, but if you’ve bought from VGP, you should just RMA the board.

          August 19, 2019 at 9:52 AM #27541
          ludovictor
          Participant

            Oh yes it’s typo. I recheck and yes pin 3 is 3.28V.

            Yes I bought it from VGP but the warranty is over … Can I really return the OSSC to be repair or refund ? I’m not familiar with this kind of problem or return

            August 20, 2019 at 10:26 AM #27564
            ludovictor
            Participant

              What I need to send ? All I ordered so the remote too, my order number ? What’s the postal address of videogameperfection to return my OSSC ? When I bought it, VGP were in united kingdom and now there were in Ireland

              August 20, 2019 at 1:44 PM #27578
              Harrumph
              Participant

                Contact us

                August 21, 2019 at 11:10 AM #27596
                ludovictor
                Participant

                  So I contact VGP, because the warranty is over, they said I can’t RMA the OSSC. I’m very sad and disappointed. It’s a manufacturing error and not my fault. I just discovered this to late… And for me, the repair service is to expensive for me (for the moment) and mostly to just resolder each component…

                  Thank you @marqs for your help and your work again. I will continue to see your projects.

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