SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
9-48
9-18. WCDMA Transmitter
TX ON (23dBm)
C100 < 21dBm
Resolder RFS100 or Change RFS100
No
Yes
C115 < 0.5V
C110 > 1.2V
C111 < 0.5V
No
Check UCP300
Yes
Check UCP300
C133 < 0.5V
C132 < 0.5V
C131 > 2.2V
No
Yes
Resolder PAM100 or Change PAM100
L111 < 22dBm
No
No
Yes
Resolder DUF100 or Change DUF100
C126 <24dBm
Yes
Resolder CPL100 or Change CPL100
No
C125 <26dBm
No
Yes
Resolder F103 or Change F103
C117 < 2dBm
Yes
Resolder PAM101 or Change PAM101
No
C116 < 5dBm
Yes
Check U201
END
Yes
Summary of Contents for SGH-F490
Page 79: ...8 PCB Diagrams 8 1 1 Main top ...
Page 80: ...PCB Diagrams 8 2 2 Main bottom ...
Page 103: ...www s manuals com ...