Charging Trouble - LG -T300 Service Manual

4.5 Charging Trouble

TEST POINT
U201 & #1
pin (TP01)
CIRCUIT
CHARGING IC
VBUS_USB
LDO_OUT
C207
1u
(25V)
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Connected to CN205 #1 pin (TP01)
Connected to
CN205 #1 pin (TP01)
TP01
1
TP0
VIN
1
2
ISET
3
GND1
4
LDO
5
IEOC
R209
R204
1.2K 3.9K C205
0.1u
4. TROUBLE SHOOTING
Figure 4.5
VBAT
11
PGND
10
BATT
9
U201
PGB
8
CHGSB
7
GND2
6
EN_SET
(10V)
- 75 -
4. TROUBLE SHOOTING
CN205 & #1
pin
(connected to
TP01)
1V8_VDD
R212
100K
nEOC
CHG_EN
C206
C201
1u 0.1u
LGE Internal Use Only