820-3437 PPVRTC_G3H low.

[RyanLEN]

U1900 gets warm. Replaced it with new and replacement gets warm as well. G3H is 8.6V, PP3v42 is 3.37V, PPVRTC_G3H 0.157.

pn 1 - 0.157
pn 2 - 3.307V
pn 5 - 3.291V
pn 6 - 0
pn 13 3.370V
pn 14 - 0.7

Diode mode

pn 1 - 0.01
pn 2 - .046
pn 5 - .049
pn 6 - .317
pn 13 - .296
pn 14 - .386

Thanks. Have a good one.

 

[aprendiz]

Remove U1900, inyect voltage on PPVRTC and see what gets hot....

 

[RyanLEN]

how much voltage? last time Idid this I blew up the cpu. lol

 

[aprendiz]

start with 1V, dont go over 3.3V

 

[RyanLEN]

Injected voltage on pn 1 of C0892 because I lost pad 1 on C1910. The board is liquid damaged and when I removed it the pad came off with the cap. I went up to 3.3 and no higher. The only thing very slightly warm was the CPU area. I also noticed that pn 2 on U1900 (PP3V3S5) is beeping to ground. Thanks for your help.

 

[dukefawks]

Dead CPU....PPVRTC line is shorted. It could be one of the caps on the rail, but I am never that lucky.