820-2936 shorted PCH?

Kyle93

Active member
Have a 820-2936 that had liquid damage and worked for a short bit after replacing everything affected by the spill but board died again during testing.

Checked power rails and found a short on PPV_SUS. I removed everything on that line excep tPCH but still have short. Does this confirm PCH needs to be replaced?
 

Kyle93

Active member
Have a 820-2936 that had liquid damage and worked for a short bit after replacing everything affected by the spill but board died again during testing.

Checked power rails and found a short on PP5V_SUS. I removed everything on that line except PCH but still have short. Does this confirm PCH needs to be replaced?
 

2informaticos

Administrator
Staff member
Is that short lower, or higher than 10 ohms?
Higher value points to PCH, or C2438.
If PP5V_SUS_PCH_V5REFSUS shows lower value than PP5V_SUS (when C2438 removed), try heating PCH with good flux.
 
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