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820-00850 - CPUGT_PWM1

D

dudipupan

Member
Hello,

currently I'm working on a water damaged 820-00850. There was corrosion on and around U7100 with a broken pad No 25. After trying to restore the pad i scratched too much and opened the underlying layer (GND). PP7103 is not shorted to ground but pin 25 of U7100 is now... Any ideas how the fix this the best way? Is it possible to short CPUGT_PWM1 to CPUGT_PWM2?
The rest of the board seems to be good. I get ALL_SYS_PWRGOOD and all other rails.

Thank you and best regards
DudiPupan
 
D

dudipupan

Member
Just received the UV Cure paint today. Isolated the short to ground but still got problems with the U7100 I think. I don't exactly know where to Start to Look for the issue. Would aperciate some help what voltages should be present here. I'm in S0 state but no usb activity or display.
 
2informaticos

2informaticos

Administrator
Staff member
CPU is probably dead after such liquid spill.
I don't recommend to waste more time with this board.
 
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