![background image](http://html.mh-extra.com/html/samsung/sgh-f480/sgh-f480_servise-manual_1190703032.webp)
SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-22
This Document can not be used without Samsung's authorization
9-2-3. DCS1800 Receiver
**If you check the rx chain,
Check not only RF Devices but also resistors, inductors and capacitors.
Continuous RX ON
RF Input : 698 CH
AMP : -50dBm
Check C105
≥
-65dBm ?
NO
Check L105
≥
-55dBm ?
U200 Check
Pin#11, 12, 13,14
≥
500mV ?
Resolder RFS101
Replace PAM100
Resolder U200 or check pins
related to U200
NO
NO
YES
YES
YES
THE END
YES
Check U200
Summary of Contents for SGH-F480
Page 85: ...www s manuals com ...