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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
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9-33
9-12. GSM Receiver
CONTINUOUS RX on
RF input : 62CH
Cell power : -50dBm
RX ON
RF input : 62CH
Cell Power : -50 dBm
Yes
No
Resolder RFS100
C100 ≥ -65dBm
C115 > 1.2V
C110 > 1.2V
C111 < 0.5V
Yes
Check UCP300
No
Yes
C107 ≥ -68dBM
No
Resolder PAM100 or Change PAM100
Yes
Yes
No
No
Check UCP300
Check U201
U201 PIN
11,12,13,14 ≥
500mV
Resolder F100 or Change F100
L102 ≥ -71dBm
END
Yes
Содержание SGH-F490
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