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Flow Chart of Troubleshooting
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9-41
9-17. WCDMA Transmitter
TX ON (23dBm)
C101
≥
50mV
C102
≥
50mV
No
R213
≥
0dBm
Yes
No
Check U101
L205
≥
0dBm
Yes
Resolder or Change F201
No
DUF201
pin7
≥
17dBm
Resolder or Change DUF201
No
Yes
C157 > 2.5V
C165 > 1.5V
C166 < 0.5V
C174 < 0.5V
No
Check UCP301
Yes
No
Resolder or Change MOD101
C134
≥
30dBm
Yes
Resolder or Change RFS101
END
C206
≥
20dBm
No
Resolder or Change U203
Yes
C210 > 2.0V
No
Check UCP301
Yes
Yes
L202
≥
14dBm
No
Resolder or Change DUF201
Yes
Check UCP301
Содержание SGH-G400
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