LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
5. Trouble shooting
- 102 -
Check TP6 of CN600
with RF Cable and TP9 of C631
TP10 Signal
same as TP10?
Replace Mobile SW (CN600)
Yes
No
Yes
Mobile SW & FEM is OK.
Check Antenna.
Check PMB8888(U102)
Control Signal is
OK ?
No
Yes
Check TP1, TP2 of U600 ?
Replace FEM (U600)
TP9 Signal is
OK ?
No
Yes
EGSM TX
TP1(ANT SW1)
TP2(ANT SW2)
Mobile SW
FEM Control Signals