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Flow Chart of Troubleshooting and Circuit Diagrams
9-2-7. UMTS Receiver
Continuous RX ON
RF Input : 10700 CH
AMP : -40dBm
NORMAL
CONDITION
Catch the channel ?
YES
DUF800 Check
Pin #6 ≥ -45dBm ?
YES
DUF800 Check
Pin #4 ≥ -45dBm ?
YES
DUF700 Check
Pin #5 ≥ -45dBm ?
YES
U700 Check
Pin#18 ≥ -65dBm ?
YES
F702 check
pin#1 ≥ -65dBm?
U700 check
pin#8,9 ≥ -65dBm
THE END
NO
NO
NO
NO
NO
NO
YES
NO
YES
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Check antenna contack
DUF800 Resolder or Change
DUF800 Resolder or Change
DUF700 Resolder or change
U700 Resolder or change
F702 Resolder or change
Change the path of F702
and U700
9-33
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