Huawei E5331 Maintenance Manual page 39
Maintenance manual basic version
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J3701
2012-4-21
E5331 Maintenance Manual Basic Version V1.0
Data Communication
Failure
Check whether J3701 is normal？
Y
Measure whether the
RV3703/RV3704/C3720
/C3721/C3705/C3706/L3701/L37
02 are normal?
Y
Replace the U3101
Figure
Huawei confidential. No spreading without permission.
Replace the
N
Replace the
N
components
RV3703 Varistor
RV3704 Varistor
C3721 Capacitor
C3720 Capacitor
9-5
J3701
faulty
6.8pF
6.8pF
C3706 Capacitor
1.8pF
L3702 Inductor
15nH
L3701 Inductor
15nH
C3705 Capacitor
1.8pF
Internal
/
/
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