Cisco Cisco 1 GHz GainMaker Amplifier インストールガイド
No Forward RF Signal
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No Forward RF Signal
The forward RF signal can be measured at the line extender module forward input
and forward output test points.
and forward output test points.
No Forward RF Signal Troubleshooting Table
Before you begin troubleshooting for no forward RF signal, verify that the line
extender is receiving the proper forward RF input signal from the upstream
equipment.
extender is receiving the proper forward RF input signal from the upstream
equipment.
Important: You cannot balance the line extender without the proper forward RF
input signal.
input signal.
Possible cause
Solution
No forward RF signal at the forward
input test point.
input test point.
Verify that the line extender is receiving the
proper forward RF input signal from the
upstream equipment.
Important: You cannot balance the line
extender without the proper forward RF input
signal.
proper forward RF input signal from the
upstream equipment.
Important: You cannot balance the line
extender without the proper forward RF input
signal.
There is forward RF signal at the
forward input test point, but no
signal at one or all of the forward
output test points.
forward input test point, but no
signal at one or all of the forward
output test points.
Verify that the line extender module is
receiving the proper AC and DC voltages.
Refer to No AC Power (on page 85) and No DC
Power (on page 87).
receiving the proper AC and DC voltages.
Refer to No AC Power (on page 85) and No DC
Power (on page 87).
Verify that all the proper accessories, pads,
EQs, and signal directors (if applicable) are
firmly installed in the correct locations.
EQs, and signal directors (if applicable) are
firmly installed in the correct locations.
Verify that the factory installed accessories are
firmly installed in the correct locations.
Note: Verifying factory installations involves
removing the line extender module cover.
Reinstall the line extender module cover
properly or RF signal degradation may result.
firmly installed in the correct locations.
Note: Verifying factory installations involves
removing the line extender module cover.
Reinstall the line extender module cover
properly or RF signal degradation may result.
Replace the line extender module.