LG GD510 - Page 81

- 82 -
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
5. Trouble shooting
GD510 Operational Description Revision A
LG Electronics 85/116 LGE Property
Check C1 of SW600
with RF Cable and C2 of C608
TP1 Signal same
as TP2?
Replace Mobile SW
(SW601)
Yes
No
Yes
Mobile SW & FEM is OK.
Check Antenna.
Replace U101
Control Signal is
OK
f
No
Yes
Check TP3, TP4 of FL601GfG
Replace FEM (FL601)
TP5~8 Signal is
OK
?
No
Yes
Checking Flow
Figure 10 Mobile SW
Figure 11 FEM Control Signals
DCS/PCS
RX
FE1
FE2