LG lg-d821 - Page 88

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 FL1003
(B8 Duplexer)
SAYFH897MHE0F0A
FL1003
EAM62514001
75
8
4 9
2
3
16
ANT RX1
TX
GND1
GND5GND2
RX2
GND3 GND4
18nC1027
C1026 33p
6.2n
L1017
C1019 18n
L1011
DNI
PRX_LB2_IN_N
PRX_LB2_IN_P
TX_PA_OUT_B8
TRX_B8
B8/G900
TP3
TP2