Check Dcn Duplexer - LG VX8610 Service Manual

VX8610

4.2.1.6 Check DCN Duplexer

TX_PORT
Checking Flow
Checking Flow
Start
Check pin1(TP1) , 6(TP2)
at DP 100 . Referring to
Figure 4.2.1(j)
Is it similar ?
NO
Replace DP 100
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Only for training and service purposes
Test Point
Test Point
DP100
Duplexer is
YES
Circuit Diagram
TP1
ANT_PORT
TP2
OK
- 70 -
Circuit Diagram
Waveform
Waveform
Tx Port
ANT Port
Figure 4.2.1(j)
LGE Internal Use Only