LG KG245 Service Manual page 52

CHECKING FLOW
For these 2 test case,
No Call connection is needed
Check SW400 Pin ANT,RF
with RF Cable connected.
Check SW400 Pin ANT,RF
with No RF Cable Connected
Check C439,C440
Check whether Ant SW
Set as RX mode
RRefer to Table 4-2
Check RF Level of
FL500.10 (for GSM) &
FL500.1(for DCS)
For this RF Level test case,
RX Stand alone Mode is needed
refer to chapter 11
ANT_SW1
GSM_TX High
DCS_TX Low
RX Low
Table 4-2
No
Open
Yes
No
Short
Yes
VC1 :Low
No
VC2 :Low
Yes
Pin10 : ~ -62dBm
No
Pin 1 : ~ -63dBm
Yes
Ant SW & Mobile SW is OK
See next Page to check
Rx IQ Signal
ANT_SW2
Low
High
Low
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4. TROUBLE SHOOTING
Changing SW400
Changing SW400
Changing the Board.
Changing FL400