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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-16
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9-2.RF
9-2-1. GSM900 Receiver
**If you check the rx chain,
Check not only RF Devices but also resistors, inductors and capacitors.
Check C105
≥
-65dBm ?
YES
NO
Check C114
≥
-70dBm ?
U200 Check
Pin#11, 12, 13,14
≥
500mV ?
Resolder RFS101
Replace PAM100
Resolder U200 or check pins
related to U200
NO
NO
YES
YES
Continuous RX ON
RF Input : 60 CH
AMP : -50dBm
THE END
YES
Check U200
Summary of Contents for SGH-F480
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