CBA Manual: H012161 Rev: 3
26
Amplifier not responding to remote commands
x
Ensure that the remote connector is mated properly.
x
Ensure that the ‘REMOTE’ indicator is illuminated
on the touch screen. If not, send
a,
“
OPRT
”
command.
x
Ensure that there is no damage to the remote connector or cable, especially
around where the cable enters the connector.
10.2 Fault
indications
HIGH VSWR
High VSWR is seen when high levels of output power are reflected into the amplifier.
The internal diagnostics determine if this state exists.
i
i
Note:
The amplifier will not be damaged by using it with a high VSWR. It might be
that the load naturally has a poor VSWR
–
this just means that the full output power of
the amplifier cannot be delivered to the load. The function of the indication is not to
protect the amplifier. It is there to alert the operator that there has been a change in
the system operating conditions.
x
Ensure that the RF cables and connectors are mated correctly.
x
Ensure that the RF load is 50 ohms.
x
Ensure that the inner pins of the RF connectors are clean.
x
Ensure that there is no damage to any of the RF connectors or cables, especially
around where the cable enters the connector.
Interlock
Is indicated on the display in the amplifier status section when the continuity of the
safety interlock circuit is broken, or the interlock control signal is not present.
x
Ensure that there is continuity through the safety interlock switch and wiring (if
used).
x
Ensure that the safety interlock connector or shorting-link is properly mated.
x
Ensure that the safety interlock control signal is present.
i
Note:
If no external safety interlock switch or control signal is used, connect the
safety interlock shorting-link (rear panel).
Power Supply fault
When the power supply voltage or current is outside operational limits, a power supply
fault is illuminated and the system enters standby mode.
x
Ensure that the power supply air-filter insert is not clogged or obstructed. Clean as
necessary.
x
Ensure that the ambient temperature is within the amplifier specification.
x
Ensure that there is at least the recommended clearance around the front and rear
panel air vents.
