LG GD910 Service Manual page 67

5. Trouble shooting
Circuit Diagram Circuit Diagram Circuit Dia ram
TP1
Circuit Diagram
2V62_VIO
_PPR
_CHG_EOC
_CHG_EN
LGE Internal Use Only
TP1
USB_VBUS
U300
VCHG
PGND
1
VDC
VDC_BYP
2
VUSB
BAT
3
_PPR
USB_BYP
4
_CHG
IVDC
5
_EN
GND
6
C304 C305
IMIN
2.2u 2.2u
IUSB
ISL9221
R306
8.2K
TP2
TP2
BATTERY
13
12
11
10
9
C301 C302 C303
8
1u 1u 1u
7
R305 R304
18K 18K
- 68 - Copyright © 2009 LG Electronics. Inc. All right reserved.
VDD_CHARGE
D300
1
3
2
TP3
KDR331V
R302
47K
TA_DETECT
R303
TP3
47K
Only for training and service purposes