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LG VX8500 Service Manual page 84

Dual band cdma pcs/cellular/w/gps cdma mobile phone
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VX8500
4.2.2.8. Check Diplexer
Test Point
Checking Flow
Start
Check U102 Pin4,2
PCS_PORT
ANT_PORT
Refer to Graph4.2.2.8
ANT PORT
Diplexer Circuit is OK
Similar?
See next page
U102
NO
Replace U102
Circuit Diagram
Waveform
PCS_Port
PCS_Port
ANT_Port
ANT_Port
Graph4.2.2.8
92
LG Electronics Inc.

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