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4. Trouble Shooting
4.2.1.3 Mobile Switch & PAM & FEM Circuit
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Check FL400
FEM
Check Control Signal
C422, C424
Mobile Switch
SW400 between C413 and
C421 Is short?
Replace SW400
Check U401,U402
YES
YES
NO
NO
C413
C421
C422
C424
SW400
RX
RX
LB_HB
TX_ANT_SW_EN
RX
<GSM850>
<PCS1900>
Содержание KM710
Страница 1: ...Date May 2008 Issue 1 0 Service Manual Model KM710c Service Manual KM710c Internal Use Only ...
Страница 123: ... 124 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 129: ... 130 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 139: ... 140 LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 173: ...Note ...
Страница 174: ...Note ...