820-3476-A - ppbus_g3h 4V

[quasimodo]

hey guys,

machine came in like this (see photo). ppbus around 1v. rest of the board looking good.

replaced all affected components, replaced u7100 -> now ppbus is 4v not stable

chgr a/l gate is 0.02v? chgr_ugate is 5v

dcin is good / 16v.


what to do?

 

[quasimodo]

figured it out. louis helped me.. and i forgot to put the 0 ohm resistor...

 

[2informaticos]

Do you get correct 3V42_G3H voltage?

Post U7100 basic voltages: 1, 2, 3, 9, 12, 13, 14, 15, 17, 19, 20, 27.