LG LG-D855 - Page 97

3. TROUBLE SHOOTING
- 97 -
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Only for training and service purposes
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Check TP1Signal exist?
Check TP2 Signal exist?
START
Check next step
Yes
Yes
No
No
Check U1302
Check FL1667 Soldering
C1854 33p
33p
C1706
L1823
18p
FL1667
75
84
92
3
16
ANT
RX
TX
GND1 GND6
GND2 GND5
GND3 GND4
L1702 DNI
33pC1702
DNIL1704 DNI
L1701
5.6n
L1703
3.3n
C1700
L1705
7.5n
100pC1781
ANT_TRX_B13
PRX_B28B
close to DPX
TP1 TP2