Cisco Cisco 1 GHz GainStar Node Installation Guide
Chapter 4 Troubleshooting
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No Reverse RF Signal
The reverse RF signal can be measured at the mainboard reverse input test point and
reverse OMI test points.
reverse OMI test points.
No Reverse RF Signal Troubleshooting Table
Before you begin troubleshooting for no reverse RF signal, verify that the node is
receiving the proper reverse RF input signals from the downstream amplifiers at the
node reverse input ports.
Important: You cannot balance the amplifier without the proper reverse RF input
signals.
receiving the proper reverse RF input signals from the downstream amplifiers at the
node reverse input ports.
Important: You cannot balance the amplifier without the proper reverse RF input
signals.
Possible Cause
Solution
No reverse RF signal at the reverse input
test point(s).
test point(s).
Verify the connection of the RF Cable
Connector.
Verify that the node is receiving the
proper reverse RF input signals.
Important: You cannot balance the node
without the proper reverse RF input
signals.
Verify that all the proper accessories,
pads, EQs, Reverse Amplifier, and signal
director are firmly installed in the correct
locations.
Verify that the factory installed
accessories are firmly installed in the
correct locations.
Replace the reverse amplifier module.
Connector.
Verify that the node is receiving the
proper reverse RF input signals.
Important: You cannot balance the node
without the proper reverse RF input
signals.
Verify that all the proper accessories,
pads, EQs, Reverse Amplifier, and signal
director are firmly installed in the correct
locations.
Verify that the factory installed
accessories are firmly installed in the
correct locations.
Replace the reverse amplifier module.