SAMSUNG Proprietary-Contents may change without notice
SGH-Z320i Flow Chart of Troubleshooting and Circuit Diagrams
2-
32
This Document can not be used without Samsung's authorization
2-2-6. UMTS Transmitter
Tx ON
RF output : 9750 CH
OUT PWR : 22dBm
RFS800 Check
Pin #2
≥
22dBm ?
YES
NO
U800 Check
Pin #22
≥
22dBm ?
DUF600 Check
Pin #8
≥
22dBm ?
PAM700 Check
Pin#8
≥
25dBm ?
RFS800 Resolder or Change
U800 Resolder or Change
DUF600 Resolder or Change
THE END
NO
NO
YES
YES
PAM700 Resolder or change
NO
F702 Resolder or change
or Check the C614>1.5V
U600 Resolder or change
YES
YES
YES
NO
NO
F702 check
pin#2
≥
-10dBm ?
U600 check
pin#51
≥
-10dBm