LG lg-d821 - Page 95

3. TROUBLE SHOOTING
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Only for training and service purposes
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Check TP1
Check TP1
Signal Exist?
Check the RX Level
Yes
Yes
Yes
No
No
No
Check the U2004
(WTR1605L-1)
Check TP2
Signal Exist?
Check the U1000
Check TP3
Signal Exist?
Check the FL1005
(B20 Duplexer)
DNI
L1031
22n
L1025
DNI
L1030
10pC1043
12nC1039
0.6nC1045
7.5n
L1029
C1044 12n
B8091 EAM62672701
FL1005
75
8
4 9
2
3
16
ANT
RX1
TX
GND1
GND5GND2
RX2
GND3 GND4
PRX_LB1_IN_P
PRX_LB1_IN_N
TRX_B17
TP3
TP2