Huawei ETS2000 Series Maintenance Manual page 42

HUAWEI ETS2000 series Wireless FWT Maintenance Menu
2. RF receiving channel fault maintenance procedure
RF receiving channel fault
Yes
Is duplexer out put normal?
Yes
Is surface acoustic wave normally output?
Yes
Is RFR6122 normal?
Yes
RF receiving
channel works well
Figure 4-8
RF receiving channel fault maintenance procedure
42
0Chapter4 Maintenance Procedures and S
olutions to Common Faults
No
Check the power of foot 5 output
Check the input end and output
No
end of foot 1, foot 3, and foot 4
of z401, and remove the
surrounding circuit fault
No
Check the input and output of
RFR6122 and remove faults
end of u101 and remove
surrounding circuit faults