Cisco Cisco 1 GHz GainStar Amplifier Installationsanleitung
Troubleshooting
43
No Reverse RF Signal
The reverse RF signal can be measured at the GainStar Line Extender module
reverse input and reverse output test point.
reverse input and reverse output test point.
No Reverse RF Signal Troubleshooting Table
Before you begin troubleshooting for no reverse RF signal, verify that the GainStar
Line Extender is receiving the proper reverse RF input signals from the downstream
amplifiers at the GainStar Line Extender reverse input and reverse output test
points.
Important: You cannot balance the GainStar Line Extender without the proper
reverse RF input signals.
Line Extender is receiving the proper reverse RF input signals from the downstream
amplifiers at the GainStar Line Extender reverse input and reverse output test
points.
Important: You cannot balance the GainStar Line Extender without the proper
reverse RF input signals.
Possible Cause
Solution
No reverse RF signal at the reverse input
test point.
test point.
Verify the connection of RF Cable
Connector.
Verify that the line extender is receiving
the proper reverse RF input signals from
the downstream amplifiers.
Important: You cannot balance the line
extender without the proper reverse RF
input signals.
Connector.
Verify that the line extender is receiving
the proper reverse RF input signals from
the downstream amplifiers.
Important: You cannot balance the line
extender without the proper reverse RF
input signals.
There is proper reverse RF signal at the
reverse input test point, but no signal at
the reverse output test point.
reverse input test point, but no signal at
the reverse output test point.
Verify that the line extender module is
receiving the proper forward RF signal.
Refer to No Forward RF Signal.
Verify that all the proper accessories,
pads, EQs, and signal director are firmly
installed in the correct locations of
GainStar Line Extender.
Verify that the factory installed
accessories are firmly installed in the
correct locations.
Verify that the 3-stage switch (if
applicable) or its jumpers are properly
and firmly installed.
Replace the RF mainboard of GainStar
Line Extender.
receiving the proper forward RF signal.
Refer to No Forward RF Signal.
Verify that all the proper accessories,
pads, EQs, and signal director are firmly
installed in the correct locations of
GainStar Line Extender.
Verify that the factory installed
accessories are firmly installed in the
correct locations.
Verify that the 3-stage switch (if
applicable) or its jumpers are properly
and firmly installed.
Replace the RF mainboard of GainStar
Line Extender.