LG U8110 Service Manual page 146

B. EGSM Tx Mode
ANTSW1
ANTSW2
ANTSW3
EGSM Tx
Logic OK?
Yes
See the Next mode
(DCS Tx Mode)
EGSM Tx
MODE=0
SWTX= 1,6 4, 7, 102 4, 1
Low
Low
High
Figure 4-22. EGSM Tx Mode
No
4.4.1 part Check OK?
Yes
ANTSW1 : Low
ANTSW2 : Low
ANTSW3 : Low
Change V1001
- 147 -
4. TROUBLE SHOOTING
No
No
Yes
Try 4.4.1 part
Change the Board