SAMSUNG Proprietary-Contents may change without notice
SGH-Z130 Flow Chart of Troubleshooting and Circuit Diagrams
2-
18
This Document can not be used without Samsung's authorization
2-2.RF
2-2-1. EGSM Receiver
Continuous RX ON
RF Input : 62 CH
AMP : -50dBm
NORMAL CONDITION
Catch the channel ?
YES
NO
CON800 Check
Pin #3
≥
-55dBm ?
U801 Check
Pin #5
≥
-55dBm ?
U601 Check
Pin#29,30
≥
-55dBm ?
Check antenna contack
CON800
Resolder or Change
U801 Resolder or Change
THE END
NO
NO
YES
YES
YES
Check the path of F801
and U601
F801 Check
Pin #4
≥
-55dBm ?
F801 Resolder or change
NO
YES
NO