Egsm Rx - Samsung SGH-Z650i Service Manual

Flow Chart of Troubleshooting
9-2.RF

9-2-1. EGSM RX

Continuous RX ON
RF Input : 62 CH
AMP : -50dBm
NORMAL CONDITION
Catch the channel ?
YES
RFS800 Check
Pin #3 ≥ -55dBm ?
YES
DUF800 Check
Pin #12, #!3 ≥ -55dBm ?
YES
U600 Check
Pin#37,38 ≥ -55dBm ?
YES
THE END
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NO
NO
NO
NO
SAMSUNG Proprietary-Contents may change without notice
Check antenna contact(RFS801)
RFS800 Resolder or Change
DUF800 Resolder or Change
Check the path of DUF800 &
U600
9-18