Hi. I have a broken power supply on a Presonus 16 channel audio mixer. I cannot find schematic anywhere. Presonus was rtecently sold to Fender Music Corp. and will not release any proprietary info or schmatics. I was wondering if you know anyone that has any experience with these power supplies and any info on making a PCB for this supply. I have a number off the board: PG3PWRMCB1169 Presonus part numbber for pcb.