
4. TROUBLE SHOOTING
- 73 -
Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
͑
ͽͶ͑ ͺΟΥΖΣΟΒΝ͑ ΆΤΖ͑ ΟΝΪ͑
͑
FIG 15 WCDMA TX Block
Battery Level check (W2100, W900)
FIG 16 Schematic of WCDMA I, VIII Power Supply
{wGX
{wGY
{wGZ
{wG[G
{wG\
{wG]
{wG^
{wG_
{wG`
{wGXW
{wGXXG
{wGXYG
{wGXZG
{wGX[G
{wGX
2.2u
C108
330p
C107
VBAT
330p
C106
100p
C113
100p
C114
2.2n
C155
100p
C138
100p
C139
U801
51
8
7
9
6
10
5
11
4
12
3
13
2
14
1
RFIN_LOW
RFOUT_LOW
VMODE
GND3
VBP
VCC2
VCC1
GND2
VEN_LOW
RFOUT_HI
VEN_HI
GND1
RFIN_HI
CPL
D
N
G
P
2.2u
C154
W2100_ON
W900_ON
R0
TP1