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Flow Chart of Troubleshooting and Circuit Diagrams
9-2.RF
9-2-1. EGSM Receiver
Continuous RX ON
RF Input : 62 CH
AMP : -50dBm
NO
Check intenna
NORMAL CONDITION
Catch the channel ?
soldering
YES
CN800 Check
NO
CN800
Pin #2,3 ≥ -55dBm ?
Resolder or Change
YES
D800 Check
NO
D800 Resolder or
Pin #12,13 ≥ -55dBm ?
Change
YES
U600 Check
NO
Check the path of
Pin#37,38 ≥ -55dBm ?
F800
and U600
YES
THE END
9- 21
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Table of Contents
Troubleshooting
