Teledyne 6 RU Chassis, Operation Manual

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6 RU SSPA Chassis Operations Manual 202058 REV AA 63
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 readout.
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
Any of the following faults also results in a summary fault state.
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 2.3.1.6
, 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 in-
stalled. 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, bring the ambient
temperature into the specified range.
•
If the ambient temperature is within the specified range and the unit ex-
periences a temperature fault, the user should first perform a visual in-
spection 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.
•
The user should check the booster board voltages on the front panel dis-
play. This can be found under the system information portion of the main
menu on the front panel. The voltage should read approximately 28VDC
for each of the fans in the SSPA. If the booster voltage is lower than
25VDC, the user should check for a power supply fault and follow the
procedures to handle this problem.
Figure 3-1:
Front panel
Fault
display
Section 3: Troubleshooting
and Maintenance