3. TROUBLE SHOOTING
- 98 -
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
START
YES
YES
OK?
Check Next step
NO
NO
Not good
Check TP1 High Level ?
(2.5V≤TP1 ≤3.0V)
The Problem may be Logic part
Refer to Logic trouble shoot
The Problem may be Logic part
Refer to Logic trouble shoot
Replace FL11206
Check High Level
of each mode ?(1.4V≤TP2/TP3 ≤3.0V)
Check FL11206 physical Damage
or soldering condition
Check the Ant Logic
in each mode
C1016
10n
L11028
3.3n
C11019
33p
L1099
8.2n
L11032
33p
C11089
33p
L11027
33p
C11120
100p
FL11206
3
9
7
5
6
1
4
10
8
2
GND1
PORT1-
PORT3-
PORT2-
PORT3+
CTL
PORT2+
PORT1+
VDD
GND2
GND
+2V7_VREG_L16
PRX_B7_B38_B40_INP
PRX_B7_B38_B40_INM
LTE_B7_B40_SW_CTL1
PRX_L7_INP
PRX_L7_INM
B_5/24
VDD : High
LTE_B7_B40_SW_CTL1
H
L
TRX_B7
TX_B40
REV_A(05/18)
TP1
TP2