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4. TROUBLE SHOOTING
A. GSM850 Rx mode
ANTSW0
ANTSW2
ANTSW3
GSM850 Rx
Logic OK?
See the Next mode
(EGSM Rx Mode)
LGE Internal Use Only
GSM850 Rx
MODE=3
SWRX=190,3
High
Low
Low
Figure 4-22-1. GSM850 Rx Mode
No
Yes
Change the Board
- 136 -
No
4.17 part Check
OK?
Yes
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Try 4.17 part
Only for training and service purposes
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Troubleshooting
