VPCF1 (MBX-235) no turn on with AC

R EZ A

hello masters
this laptop problem is that it turns on with battery but not with ac

when ac is connected on pu3(24753)
PVCC=19V
VREF=3.3V
ACTED=0.6V
ACDRV#=19v

when i remove PD19
ACDET=2.6 and AVDRV#=19V

i replace pq1,pq2 and pu3 =>no change
any idea?

gserg

pin8 ovpset pu3 ?

R EZ A

gserg писал(а):

pin8 ovpset pu3 ?

OVPSET=2.6V

gserg

pu3 pin21 ?

vldmrdnpr

short pj15 (schematic mbx-215).

Rugda

If you have the opportunity to replace PU19 - SN0608098RHBR - analog - ISL6236 and RT8206A.
It is also possible the problem is the charge controller or its neighbors capacitores.

gserg

the meaning of this change ? from the battery the device works, according to the author.

R EZ A

vldmrdnpr писал(а):

short pj15 (schematic mbx-215).

it works
what was the problem?

pj15 disable OVP?

vldmrdnpr

R EZ A писал(а):

pj15 disable OVP?

not disable, but set it in working state after error

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VPCF1 (MBX-235) no turn on with AC [РЕШЕНО]

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