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Flow Chart of Troubleshooting
10-38
10-15. PCS Transmitter
TX ON (0 LEVEL)
L105 > 2.5V
R103 < 0.5V
R104 > 1.5V
R105 < 0.5V
No
Check UCP300
Yes
No
Resolder F101 or Change F101
C107
≥
30dBm
Yes
Resolder RFS100 or Change RFS100
END
C200
≥
50mV
C201
≥
50mV
Check UCP300
No
Yes
C208
≥
0dBm
Check U202
No
Yes
R107 > 2.5V
C129 > 1.3V
C130 > 1.3V
No
Yes
L112
≥
0dBm
No
Resolder U102 or Change U102
Yes
Check UCP300
Содержание SGH-L770V
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