VPCEC3L1E battery problem

[lefos]

Hello everybody,

I wanted your help with this one.
Powers on everything works ok except battery charging. If you install its battery (tried with new working checked with other) the charging light blinks constantly.
The motherboard model is mbx-225. I have found that PQ2 is shorted. After changing it the laptop doesn't power on, only if you put back the shorted one.
Also changed the bd24753a
Any ideas on this one please?

[highpulse]

Re: VPCEC3L1E battery problem

well its not turning up because OCP OVP circuits are blooking the mosfet to pass from drain to source .
You must chek carefuly all mosfet on the charging circuit , and look also for the 3 leg mosfet , they are pain in the ass in OCP OVP circuit