HP BOARD LA-H323P (Not mofset again ?!)

[pc_okay]

Hello guys,

I quadruple check my dc mofset and they are not leaking.
But first one is giving me million and millions ohms in every ways (gate <> source <> drain <> gate) could it be this little b....?

But I get not voltage after first mofset 0V, I get 0.95V after 2nd mofset.

On my ic chip i get: (without battery)

ACN 0.91
ACP 0.91
CMNSRC 0.38
ACDRV 0.05
ACOK 0
ACDET 3.1
IOUT 0
SDA 0.1
ILIM 0
BATDRV 2.2
SRN 0
SRP 0
GND 0
LODRV 0
RGN 5.
BTST 5.7
HIDRV 1.69
PHASE 1.068
VCC 19.58

Thanks )

[rogfanther]

ACOK shouldn´t be 0V. Check it again, also check its circuit.

[rogfanther]

ACOK shouldn´t be 0V. Check it again, also check its circuit.

[mon2]

What is the resistance to ground of ACN / ACP?

[pc_okay]

Hello !!!

Sorry guys, noob problem, I'm ashamed !

I put my power supply to high (20V ~) and it was too much for the IC, the Overvoltage protection was running and ACOK was LOW because of it !
Immediatly after lower the power supply to 19.5V the ACOK was high and everithing work now.
Good to know and Thanks rogfanther for the clue.

The problem was due to liquid damage on the keyboard, the keyboard is actually shorted to ground... Not a motherboard problem actually... bad diagnostic from my team.

Thanks again and have a nice day.