LG C1100 Service Manual page 49

4. Trouble Shooting
Checking Flow
Check SW301 Pin ANT,RF
with RF Cable connected.
Check SW301 Pin ANT,RF
with No RF Cable Connected
Check L305, L306
Check whether Ant SW
Set as RX mode
Refer to Table 4-1
Check RF Level of
FL301.2 (for GSM) &
FL301.11(for DCS)
For this RF Level test case,
RX Stand alone Mode is needed
refer to chapter 11
ANT SW
DCS TX
EGSM TX
EGSM,DCS RX
For these 2 test case,
No Call connection is needed
Ant SW & Mobile SW is OK
See next Page to check
Rx IQ Signal
Table 4-1.
VC1 VC2
0 1
1 0
0 0
Open
Yes
Short
Yes
VC1 : Low
VC2 : Low
Yes
Pin10 : ~ -62dBm
Pin 1 : ~ -63dBm
Yes
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No
Changing SW301
No
Changing SW301
No
Changing the Board.
No
Changing FL301