LG GT500 - Page 121

- 122 -
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
4.16.1 Step 1
TP1
TP2
Main Board (bottom side)
- Power Source Block
g
Main Board (Top side)
- Step 1 : VBAT Block
c
TP5
TP3
TP4
Direction of BAT and GND
USB charging path
Discharging
Route as a differential pair
Causion when PCB lLayout
22p
C337
2
C1
1
D302
KDS221E_RTK
A1_C2
3
A2
VBAT_H VBAT
300K
R320
C330
22p
C331
33u
1%
1/4W
2012
0.1
R316
D1 D2
1 2 3
CN300
R314
0
CHS-
BDATA
CHS+
TP1
TP3
TP4
TP2