3. TROUBLE SHOOTING
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Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
PA LOGIC B1/B8
POWER MODE
PA_ON_B8
PA_ON_B1_B4
PA0_R0
SHUT DOWN
L
L
L
STAND-BY
L/H
L/H
-
B8 HPM
H
L
L
B8 LPM
H
L
H
B1 HPM
L
H
L
B1 LPM
L
H
H
SKY77742-21
U1601
17
15
13
16
14
10
5
6
4
12
7
3
8
11
1
9
2
RFIN
GND3
VBATT
GND4
CPLOUT
VENHB
GND2
VC
C
VENLB
GND1
VMOD
E
RFOUTL
B
RFOUTHB
GND6
GND5
CPLIN
PGND
+VPA0
C1629
10
u
1n
C1631
33p
C1638
C1642
DNI
C1639
33p
C1645
1n
1n
C164
4
C164
3
1n
C1630
100n
PA0_R_0
PA0_ON_2
PA0_ON_3
WTR_PDET_IN
WTR_TX2_OUT
B1, B8
B1
B8
TP2
TP3
TP1