LG KP260 Service Manual page 43

4. TROUBLE SHOOTING
CHECKING FLOW
For these 2 test case,
No Call connection is needed
Check SW500 Pin ANT,RF
with RF Cable connected.
Check SW500 Pin ANT,RF
with No RF Cable Connected
Check TP4,5,6
Check whether Ant SW
Set as RX mode
Refer to Table 4.2.2
For this RF Level test case,
RX Stand alone Mode is needed
refer to chapter 10
LGE Internal Use Only
Open
Yes
Short
Yes
Check TP4,5,6
Yes
Ant SW & Mobile SW is OK
See next Page to check
Rx I/Q Signal
- 44 -
No
Changing SW500
No
Changing SW500
Changing the Board.
No
ANT_SW1
GSM850_EGSM TX H
DCS_PCS TX L
GSM850 RX
H
EGSM900 RX H
DCS1800 RX L
PCS1900 RX L
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
ANT_SW2
H
H
L
L
L
L