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5. Trouble shooting
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
5.3 Charging trouble
Check Points
- Connection of TA (check TA voltage 5.1V)
- Charging Current Path component voltage drop
- Battery voltage
1 Charging method : CC-CV
2 Charger detect voltage : 4.0 V
3 Charging time : 2h 20m
4 Charging current : 550 mA
5 CV voltage : 4.2 V
6 Cutoff current : 110 mA
7 Full charge indication current (icon stop current) : 110 mA
8 Recharge voltage : 4.16 V
4.2V~3.71V
3.70V~3.55V
3.54V~3.46V
3.45V~3.31V
A
m
0
5
4
:
m
h
o
K
5
1
2
3
4
R
OVP Charging IC
)
%
1
(
K
6
.
5
1
3
4
R
)
%
1
(
10
USB_BYP
VDC
1
VDC_BYP
12
2
VUSB
4
_CHG
_EN
5
3
_PPR
EUSY0351601
ISL9221
U401
11
BAT
8
GND
IMIN
6
IUSB
7
IVDC
9
13
PGND
K
5
1
2
3
4
R
VIO_2V62
F
u
1
.
0
2
4
4
C
K
0
2
3
3
4
R
1
4
4
C
F
u
1
.
0
VBUS_OVP
K
0
0
1
0
3
4
R
6
2
4
R
K
0
0
1
u
1
9
3
4
C
F
u
1
.
0
0
4
4
C
VBAT
I
N
D
4
3
4
R
TP401
VCHG_OVP
VCHG
VBUS_USB
K
0
0
1
7
2
4
R
TP400
R
P
P
_
C
O
E
_
G
H
C
N
E
_
G
H
C
TP1
TP2
Содержание KP500
Страница 1: ...Service Manual Model KP500 Service Manual KP500 Date October 2008 Issue 1 0 Internal Use Only ...
Страница 119: ... 120 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 127: ... 128 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 147: ...LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 148 ...
Страница 169: ...Note ...
Страница 170: ...Note ...