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Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
LG Electronics
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LGE Property
Check TP1 of SW600
with RF Cable and TP2 of C606
TP1 Signal same
as TP2?
Replace Mobile SW (SW600)
Yes
No
Yes
Mobile SW & FEM is OK.
Check Antenna.
Replace BB CHIP (U100)
Control Signal is
OK ?
No
Yes
Check TP3, TP4 of FL600 ?
Replace FEM (FL600)
TP5 Signal is OK ?
No
Yes
Checking Flow
EGSM TX
Figure 31 FEM Control Signals
Figure 30 Mobile SW (R403)
TP2(ANT_SW2)
TP1(ANT_SW1)
Содержание GT350
Страница 1: ...Service Manual Model GT350 Internal Use Only Service Manual GT350 Date May 2010 Issue 1 0 ...
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