SAMSUNG Proprietary-Contents may change without notice
SGH-Z320i Flow Chart of Troubleshooting and Circuit Diagrams
2-
24
This Document can not be used without Samsung's authorization
2-2-5. PCS Receiver
F802 Resolder or change
U800 Check
Pin #4
≥
-55dBm?
NO
YES
NO
F802 Check
Pin #3,4
≥
-55dBm?
Check the path of F801
& U600
YES
YES
YES
NO
NO
THE END
U800 Resolder or Change
RFS800 Resolder or Change
Check antenna contact
U600 Check
Pin#24,25
≥
-55dBm?
RFS800 Check
Pin #3
≥
-55dBm?
NO
YES
NORMAL CONDITION
Catch the channel?
Continuous RX ON
RF Input : 698 CH
AMP : -50dBm