820-3208 - PP1V05_S0 Shorted to GND

Alan.L

Member
board power on with fan spin high. no picture.


i looked entire board and this R1102 area has corrosion.




cleaned up, found broken trace and a test point.



that trace is broken and no longer connected to pin1 of R1102. that trace is PP1V05_S0.
 

Alan.L

Member
i havent fix. pin1 of R1102 is not shorted to ground

i just checked it is really low resistance (18Ω) to ground (meter beep)

what i need to do next?
 
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I don't know about the WiFi cables and would appreciate a good tip on this too :) I would try to release the screw with a sharp screwdriver. Maybe even with tweezers...
 

Alan.L

Member
done. i taken from a broken test display. i'll test everything tomorrow when a new replacement keyboard arrive.

 
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