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Flow Chart of Troubleshooting
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9-43
9-17. PCS Transmitter
TX ON (0Level)
CONTINUOUS TX ON
RF Input : 660CH
Check U201
PAM100
PIN 21 ≥ 0dBm
No
Yes
C115 < 0.5V
C110 > 1.2V
C111 > 1.2V
R107 ≥ 0.2V
No
Check UCP300
Yes
No
Resolder PAM100 or Change PAM100
C100
≥ 27dBm
Yes
Resolder RFS100 or Change RFS100
END
Summary of Contents for SGH-F490
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