Hello everyone, Acer e1-531 have charging problem.it show plugged in charging but no charge save in battery. i have changed bq25a charging chip and 2 charging page mosfet but also same. i need expert help for solve it. please....
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Aspire E1-531 charging problem, please help.
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Re: Aspire E1-531 charging problem, please help.
Thanks aanan for reply me. Here oi charging chip input voltage.
pin 1=18v
pin 2=18v
pin 3=0.02v
pin 4=18v
pin 5=0.03v
pin 6=2.4v
pin 7=0.22v
pin 8=3.3v
pin 9=0.03
pin 10=.75v
pin 11=10.21v
pin 12=10.27v
pin 13=10.28v
pin 14=0
pin 15=0
pin 16=6.04
pin 17=0.13
pin 18=10.03
pin 19=10.27
pin 20=18.8v
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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 )
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Re: Aspire E1-531 charging problem, please help.
Sorry some mistake find first input, now it is correct input with battery inserted
pin1=18.3v
pin2=18
pin3=19.05
pin4=19.08
pin5=3.18
pin6=2.4
pin7=0.13so
pin8=3.3
pin9=3.3
pin10=.73v
pin11=10.16
pin12=10.23
pin13=10.2
pin14=0v
pin15=0
pin16=6.04
pin17=10.14
pin18=10.01
pin19=10.2
pin20=18.03
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Re: Aspire E1-531 charging problem, please help.
Originally posted by nazrul145 View PostSorry some mistake find first input, now it is correct input with battery inserted
pin1=18.3v
pin2=18
pin3=19.05
pin4=19.08
pin5=3.18
pin6=2.4
pin7=0.13so
pin8=3.3
pin9=3.3
pin10=.73v
pin11=10.16
pin12=10.23
pin13=10.2
pin14=0v
pin15=0
pin16=6.04
pin17=10.14
pin18=10.01
pin19=10.2
pin20=18.03
check for continuity and also replace the 3 mosfet N type 4466 even if they seem to work.
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