Only For Training And Service Purposes - LG KP175 Service Manual

4. TROUBLE SHOOTING
(2) Checking Mobile SW & FEM
TEST POINT
ASM+PAM
CIRCUIT
6
DCS_RX
7
GSM_RX
U501
8
LGE Internal Use Only
C503
C502
C500
C500 C501 C502 C503
56p 68p 56p 56p
VBAT
C508 C510
10u 0.01u
1
VBATT
20
GND9
19
- 48 -
PA_BAND
PA_EN
R503
TX_RAMP
68
ANT_SW
WAVEFORM
EGSM RX
Graph 4.2.2 ASM Control Signal
Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

BS
Tx_EN
V_LOGIC