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Flow Chart of Troubleshooting and Circuit Diagrams
9-2-2. EGSM Transmitter
Tx ON
(Level : 5)
battery voltage : 3.8V
U601 Check
Pin#40 ≤ 2.3V ?
YES
VCO600 Check
Pin #1 ≒ 6dBm ?
YES
PAM600 Check
Pin #9 ≥ 30dBm ?
YES
DUF800 Check
Pin #22 ≥ 30dBm ?
YES
DUF800 Check
Pin#6 ≥ 30dBm?
YES
THE END
NO
NO
NO
NO
NO
SAMSUNG Proprietary-Contents may change without notice
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Check the U601
VCO600 Resolder
VCO600 Resolder or Change or
Check the path of VCO600 &
PAM600
DUF800 Resolder or Change or
Check the path of DUF800 &
PAM600
DUF800 Resolder or Change
9-23
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