Aspire E1-531 charging problem, please help.

[ghojariya abdul]

Re: Aspire E1-531 charging problem, please help.

i had a charging prob. i had change p9 p10 pq11 ,and prob.is solved. thanks.

[HarryPK]

Re: Aspire E1-531 charging problem, please help.

Great job.

[HarryPK]

Re: Aspire E1-531 charging problem, please help.

Did you mean pq9, pq10, pq11?

[universaltvm]

Re: Aspire E1-531 charging problem, please help.

Did you mean pq9, pq10, pq11?

i tried a lot with this issue. if u heat all coponets this will work for 1 or 2 days. this issue will come back. dont feel happy. i am also stuck with this issue with e1-531 laptop

[sourcebf]

Re: Aspire E1-531 charging problem, please help.

those are correct measurement

Measure → V(TP(ACDET)) = 2.6 V ± 0.1 V
Measure → V(TP(ACOK)) = 3.3 V ± 0.1 V
Measure → V(J2(SYS)) = 19.5 V ± 0.5 V
Measure → V(TP(REGN)) = 6 V ± 0.5 V
Measure → V(TP(ACDRV, CMSRC)) = 6 V ± 0.5 V
Measure → V(J2(BAT, GND)) = 2 V ± 2 V


from yours
ACOK is not good pin 5 =0.02v must be 3.3v

pin4(acdrv)-pin3(cmsrc)=6v in your case pin4-pin3=18-0.03=18v so it is not good

ACDRV must be 24V or 25V and CMSRC 18v or 19V

24-18=6V and 25-19=6V (correct voltage )

Thanks a lot for your help, very helpful informations ..

[fixfixit]

Re: Aspire E1-531 charging problem, please help.

pin4-pin3=0V can't charge

check for continuity and also replace the 3 mosfet N type 4466 even if they seem to work.

Thank you, dycc! You saved me from lot of trouble finding why the charge pump is messed up.

[superhache]

Re: Aspire E1-531 charging problem, please help.

Thanks very much for all your help, i Also had a bad pq9.