LG KG320 - My Stuff - File Management; Videos and Photos

4. TROUBLE SHOOTING
- 58 -
Check C439,C440
Check whether FEM
Set as RX mode
Refer to Table 4-2
Yes
VC_EGSM :Low
VC_DCSPCS :Low
Check SW400 Pin ANT,RF
with RF Cable connected.
Open
Yes
Changing SW400
Check SW400 Pin ANT,RF
with No RF Cable Connected
Short
Yes
Changing SW400
For these 2 test case,
No Call connection is needed
No
No
Changing the Board.
Check RF Level of
FL400
FEM & Mobile SW is OK
See next Page to check
Rx IQ Signal
Pin10,11 : ~ -62dBm
Pin 12,13 : ~ -63dBm
No
Changing FL400
Yes
No
For this RF Level test case,
RX Stand alone Mode is needed
Pin 14,15 : ~ -63dBm
Checking Flow
Table 4-2
Select Mode Vc(EGSM) Vc(DCS/PCS)
EGSM-Rx Low Low
EGSM-Tx High Low
DCS-Rx Low Low
PCS-Rx Low Low
DCS/PCS-Tx Low High