LG -MC2670 Service Manual page 30

LG-MC2670
2.2.6 Check Duplexer & Mobile SW
TEST POINT
DP101 PIN8
DP_out
U100 PIN2
Mobile S/W out
Circuit Flow
Check DP101 Pin8
DUP_OUT
Check U100 Pin2
Mobile S/W
NO
Level is Appear?
YES
NO
Level is Appear?
YES
Re-download SW and
Recalibration
27
Duplexer
DP101
Replace DP101
Replace U100