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LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4.3 SIM Detect Trouble
•
SIM control path
- DB3150 generates SIM interface signals(1.8V level) to AB3000.
- AB3000 converts SIM interface signals to 3V.
SIM works well?
Finish
START
Yes
Reconnect SIM card
Resolder J1 on main PCB
and check the contact
between J1 and SIM card
Change main board
SIM works well?
Finish
Yes
No
No
SIM works well?
Finish
Yes
No
Change SIM card
< Main Board - Bottom side >
J1
Z3X-BOX.COM
Содержание KT520
Страница 231: ...Note Z 3 X B O X C O M ...
Страница 232: ...Note Z 3 X B O X C O M ...