820 3023 battery issue

[EJS]

820 3023 dose not recognize battery, or run off of battery, board in not liquid damaged. R5280 and R5281are both good, nether line is shorted.

 

[TCRScircuit]

Voltage on PPBUS_G3H?

 

[EJS]

PPBUS_G3H 8.18v

 

[turbo]

Voltage on PPBUS_G3H?

ppbus 16.5v!!!!!!!!!!!!!!!!!!!!

 

[TCRScircuit]

Well, you have a problem there. Battery does not like 16v.... Neither does the rest of the stuff on PPBUS_G3H. Replace U7000 and Q7030 / Q7035 all at the same time.

 

[EJS]

I don't know why turbo said anything an 16v, I have 8.18v of g3h...

 

[dukefawks]

8.2 means SMC not talking to the ISL. Dead SMC or dead ISL most likely.