LG GT350 - Page 92

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4. TROUBLE SHOOTING
LG Electronics 89/115 LGE Property
Check
T
P1 of SW600
with RF Cable
and TP2 of L601
T
P1 Signal same
as TP2
?
Replace Mobile SW
(CN601)
Yes
No
Yes
Mobile SW & FEM is OK.
Check Antenna.
Replace U601
Control Signal is
OK
?
No
Yes
Check
T
P3, TP4 of FL601 ?
Replace FEM (FL601)
T
P5~8 Signal is
O
K
?
No
Yes
Checking Flow
Figure 10 Mobile SW (R403)
DCS/PCS
RX
FE1
FE2
Figure 11 FEM Control Signals