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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-35
9-13 GSM Transmitter
TX ON (5Level)
CONTINUOUS TX ON
RF Input : 62CH
Check U201
PAM100
PIN 23 ≥ 0dBm
No
Yes
C115 < 0.5V
C110 < 0.5V
C111 > 1.2V
R107 ≥ 0.2V
No
Check UCP300
Yes
No
Resolder PAM100 or Change PAM100
C100
≥ 30dBm
Yes
Resolder RFS100 or Change RFS100
END
Содержание SGH-F490
Страница 79: ...8 PCB Diagrams 8 1 1 Main top ...
Страница 80: ...PCB Diagrams 8 2 2 Main bottom ...
Страница 103: ...www s manuals com ...