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Flow Chart of Troubleshooting
10-17. WCDMA Transmitter
TX ON (23dBm)
C200 ≥ 50mV
C201 ≥ 50mV
Yes
C244 ≥ 0dBm
Yes
L206 ≥ 0dBm
Yes
C253 > 2.0V
Yes
C250 ≥ 20dBm
Yes
F202
pin7 ≥ 17dBm
Yes
C241 ≥ 14dBm
Yes
L105 > 2.5V
R103 > 1.5V
R104 < 0.5V
R105 > 1.5V
Yes
C107
≥ 30dBm
Yes
Resolder RFS100 or Change RFS100
END
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No
Check U300
No
Check U202
No
Resolder F201 or Change F201
No
Check UCP300
No
Resolder U201 or Change U201
No
Resolder F203 or Change F203
No
Resolder F202 or Change F202
No
Check UCP300
No
Resolder F101 or Change F101
10-46
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