LG lg-d821 - Page 98

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 FL1018
Check TP3
Signal Exist?
Check the FL1013
(B3, DCS1800 RX Filter)
100pC1060
C1068 100p
FL1013
ACMD-6103-TR1
EAM62632601
75
84
92
3
16
ANT RX
TX
GND1 GND6
GND2 GND5
GND3 GND4
L1041
5.6n
C1067
1n
L1046 DNI
L1042
15n
1pC1059
1p
C1064
5.6nL1044
L1043 15n
TX_PA_OUT_B3
TRX_B3
PRX_MB2_IN_N
PRX_MB2_IN_P
B3/G1800
TP2
TP3