Rf Failure; Rf Receiving Failure-Wcdma 2100Mhz - Huawei U8650-NFC Maintenance Manual

9.16 RF Failure

9.16.1 RF Receiving Failure-WCDMA 2100MHz

Reference Figure 9-15
2011-06-09
U8650-NFC Maintenance Manual Basic Version V1.0
RF receiving failure
Upgrade the software，
measure whether it is
normal?
N
Measure whether
the RF power supply voltage
is normal?
Y
Measure whether two pins of
the U3201 are connection？
Y
Replace U3304&U3702,
measure whether it is
normal？
N
Replace U3202,
measure whether it is
normal？
N
Replace U3801,
measure whether it is
normal？
N
Replace the U401
Huawei confidential. No spreading without permission.
Y End
Replace the
N
U201
Replace the
N
U3201
Y End
Y End
End
Y
Internal
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