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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting and Circuit Diagrams
9-
22
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9-2-2. EGSM Transmitter
Tx ON
(Level : 5)
battery voltage : 3.8V
CN800 Check
Pin #2,3
≥
30dBm ?
YES
NO
D800 Check
Pin #22
≥
30dBm ?
U600 Check
Pin#40
≤
2.3V ?
Check the CN800
D800
Resolder or Change
THE END
NO
YES
YES
Check the U600
VCO600 Check
Pin #1
≒
6dBm ?
VCO600 Resolder or
change
NO
YES
NO