Rf Transmitting Failure-Wcdma 2100Mhz - Huawei U8510-1 Maintenance Manual

9.14.3 RF Transmitting Failure-WCDMA 2100MHz

Reference Figure 9-11&9-12
2011-05-28
U8510-1 Maintenance Manual Basic Version V1.0
Transmitting failure
Upgrade the software. Then
check whether it is normal?
N
Measure RF power supply
voltage whether is normal?
Y
Replace U3202,
check whether it is normal？
N
Replace U3304,
check whether it is normal？
N
Replace U3301,
check whether it is normal？
N
Measure whether the U3302
is normal？
Y
Measure whether the U3801
is normal？
Y
Replace the U401
Huawei confidential. No spreading without permission.
End
Y
Replace the
N
U201
End
Y
End
Y
Y End
Replace the
N
U3302
Replace the
N
U3801
Internal
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