tlough75
Member
I have an 820-4924 that came in as no power due to liquid damage. I found surface corrosion around U8330 and SMC. Stone dead with PPBUS at 12.23V. I found the trace for R5170 (SMC_RESET_L) was broken so I ran a jumper. I also ran a wire to R5173. I now have PPBUS at 12.59V, PP3V42 is 3.42V, etc. I checked all the power rails and found them up to PP5V_S4.