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LG VX8500 Service Manual page 83

Dual band cdma pcs/cellular/w/gps cdma mobile phone
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VX8500
4.2.2.7. Check PCS Duplexer
Test Point
Checking Flow
ANT_PORT
Start
Check DP101 Pin1,3
TX_PORT
ANT_PORT
DP101
Refer to Graph4.2.2.7
YES
Duplexer is OK
Similar?
NO
Replace DP101
TX_PORT
Circuit Diagram
Waveform
TX_PORT
TX_ PORT
ANT_PORT
ANT_ PORT
Graph4.2.2.7
91
LG Electronics Inc.

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