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SGH-Z320i Flow Chart of Troubleshooting and Circuit Diagrams
2-
22
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2-2-3. DCS Receiver
Continuous RX ON
RF Input : 698 CH
AMP : -50dBm
NORMAL CONDITION
Catch the channel ?
YES
NO
RFS800 Check
Pin #3
≥
-55dBm ?
U800 Check
Pin #3
≥
-55dBm ?
U600 Check
Pin#34,35
≥
-55dBm ?
Check antenna contact
RFS800
Resolder or Change
U800 Resolder or
Change
THE END
NO
NO
YES
YES
YES
Check the path of F801
and U600
F801 Check
Pin #3,4
≥
-55dBm ?
F801 Resolder or change
NO
YES
NO