Dell N4010 Does not power on.

[IamPritesh]

Re: Dell N4010 Does not power on.

Unlike other mobo,on this the 3.3v_alw will come before 5v_sus.
Follow the sequence on page 45


I didn't check the schematic untill now,your best bet is the power sequence unless it is not given on the schematic.

I dont have ALW_ON output from IO Chip. Is it a bad IO that needs replacement ? I have flashed both the MAIN and EC bios once though.

[IamPritesh]

Re: Dell N4010 Does not power on.

On Resistance mode ( 200K rage)
PL9 input side : 130K
PL 9 output side : 10K ( keeps increasing if you continue to keep the probe attached )

Thanks

ALso why does the resistance keeps increasing and is not stable ?

[Udemzy]

Re: Dell N4010 Does not power on.

I dont have ALW_ON output from IO Chip. Is it a bad IO that needs replacement ? I have flashed both the MAIN and EC bios once though.

Acin in the pic is low with 2.7v,is that what you're getting from the charging ic to the sio chip?

check rtc section
32.7khz

sio vcc,ecrst,acin this is enough to release alw_on ,if not then sio is fualty.

[IamPritesh]

Re: Dell N4010 Does not power on.

Acin in the pic is low with 2.7v,is that what you're getting from the charging ic to the sio chip?

check rtc section
32.7khz

sio vcc,ecrst,acin this is enough to release alw_on ,if not then sio is fualty.

SIO VCC is 3.3
Which one is ecrst ? is it WRST ( Pin 14 of IO )

[Udemzy]

Re: Dell N4010 Does not power on.

Yes