Table of Contents
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Flow Chart of Troubleshooting and Circuit Diagrams
9-2-2. EGSM Transmitter
Tx ON
(Level : 5)
battery voltage : 3.8V
NO
CN800 Check
Check the CN800
Pin #2,3 ≥ 30dBm ?
YES
D800 Check
NO
D800
Pin #22 ≥ 30dBm ?
Resolder or Change
YES
NO
VCO600 Check
VCO600 Resolder or
Pin #1 ≒ 6dBm ?
change
YES
NO
U600 Check
Check the U600
Pin#40 ≤ 2.3V ?
YES
THE END
9- 22
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Table of Contents
Troubleshooting
