Only For Training And Service Purposes - LG GM210 Service Manual

(2) Checking Mobile switch, SKY7723
TEST POINT
CIRCUIT
GRS300-2S-H36-E3000 SW500
C510
22p
U501
SKY77523
LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

TP3
TP2
TP4
TP5
U501
TP1
31
GND17
30
VPC
29
VBATT
28
VSUP
27
BS0
26
BS1
25
PAC_EN
24
TR_EN
23
SAT_DET
22
COUP
21
GND16
- 61 -
4. TROUBLE SHOOTING
U500
SW50
0
Figure 4.3
TP4
TP5
R508
18
R509 R510
220
220
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
TP2
TP3
ANT_SW2
ANT_SW1
PA_EN (GPIO_060)
PA_BAND (GPIO_070)
LGE Internal Use Only