Paradise Datacom 4 RU Chassis, Operation Manual

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4 RU SSPA Chassis Operations Manual 201627 REV X 47
Section 3: Troubleshooting and Maintenance
3.0 Troubleshooting Faults
The Rack Mount SSPA has five fault condition LEDs on left side of the
front panel which reflect a summary fault, and fault states for voltage,
temperature, current and the amplifier’s power supply.
Additional fault reporting is available via the front panel display readout.
Figure 3-1
shows a representation of the fault condition indicators.
The following sections describe steps the user should take to
determine the cause of a fault state in a stand-alone amplifier.
3.0.1 Summary Fault
This fault reflects overall state of the SSPA. Only "major" faults affect the summary
fault state. Some faults may or may not affect the summary fault depending on the
SSPA settings.
3.0.2 Voltage Fault
The user should check the voltages displayed on page 6 of the system information
menu of the front panel
display. If the voltages are outside of the normal output ranges
as described in
Section 2.2.1.6
, consult the factory.
3.0.3 Temperature Fault
If you are experiencing a temperature fault, follow the steps below:
•
Check the ambient are temperature of the room where the SSPA is installed. Check
the environmental specifications on the specification sheet for your SSPA. If the
ambient temperature is beyond these limits the user may experience a temperature
fault. If this is the case, action will need to be taken by the customer to bring the
ambient temperature into the specified range.
•
If the ambient temperature is within the specified range and the user still
experiences a temperature fault, the user should first perform a visual inspection of
the fans to make sure they all appear to be spinning.
•
The user should check the front panel read-out out for a fan fault. This can be
found under the system information portion of the main menu on the front panel. If
a fan fault is present, the user may need to replace the fan that is not functioning.
Figure 3-1:
Front panel
Fault display