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 B2/B5
POWER MODE
PA_ON_B5
PA_ON_B2
PA0_R0
SHUT DOWN
L
L
L
STAND-BY
L/H
L/H
-
B5 HPM
H
L
L
B5 LPM
H
L
H
B2 HPM
L
H
L
B2 LPM
L
H
H
SKY77742-21
U1600
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
10
u
C1603
1n
C1605
33p
C1612
C1604
100n
1n
C1616
C1617
1n
C1618
1n
C1613
DNI
TOL=0.01
R1606
51
PA0_R_0
PA0_ON_0
PA0_ON_1
WTR_TX3_OUT
B2
B5
B2, B5
TP2
TP1
TP3