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La-c701p charging problem
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biosedit
Senior Member
Join Date:
Sep 2018
Posts:
60
Country:
Pakistan
#1
La-c701p charging problem
02-26-2020, 08:30 AM
can any one help us with charging problem
bq737 ic was damage i changed it but now plug in charging,but percentage not going up laptop 5558
mcplslg123
Badcaps Legend
Join Date:
Jun 2015
Posts:
7258
Country:
india
#2
02-26-2020, 10:37 PM
Re: La-c701p charging problem
Where is the measurement of all pins of charging IC??
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diegosgarcia81
New Member
Join Date:
Jul 2020
Posts:
4
Country:
Brasil
#3
07-13-2020, 06:53 PM
Re: La-c701p charging problem
i have the same problem
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diegosgarcia81
New Member
Join Date:
Jul 2020
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4
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#4
07-13-2020, 06:55 PM
Re: La-c701p charging problem
1. ACN - 19v
2. ACP - 19v
3. CMPOUT - 0V (0)
4. CMPIN - GND
5. ACOK - 0V (0)
6. ACDET - 2.45V
7. IOUT - 0V (0)
8. SDA - 3.24V
9. SCL - 3.24V
10. ILIM - 2.96v
11. BM# - 3.22v
12. SRN - 14.74v
13. SRP - 14.74v
14. GND
15. LODRV - 0V (0)
16. REGN - 5.91v
17. BTST - 14.43v
18. HIDRV - 14.77v
19. PHASE - 14.77v
20. VCC - 19v
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luckydip
Senior Member
Join Date:
Aug 2016
Posts:
156
Country:
uk
#5
07-15-2020, 01:57 AM
Re: La-c701p charging problem
I would recheck if the chip has been soldered correcty - Pin 5 ACOK should be around 3v
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piernov
Super Moderator
Join Date:
Jan 2016
Posts:
4435
Country:
France
#6
07-15-2020, 06:22 AM
Re: La-c701p charging problem
ACOK is active low on bq24737.
OpenBoardView —
https://github.com/OpenBoardView/OpenBoardView
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