Additional Troubleshooting Information; Parts List - Comtech EF Data XPA-200 Installation And Operation Manual

XPA200-7984-I-OPT1, X-Band SSPA
7.1 General
This addendum section contains additional items as listed
below:
1. Additional Troubleshooting helps (Table 7.1)
2. Wiring diagram.
3. Top level parts list.

7.2 Additional Troubleshooting Information.

Additional Troubleshooting Help
SYMPTOM
Unit does not turn on
(no display, no front
panel lights, no
fans).
Either one or both
fans do no turn on.
XPA200-7984-I-0PT1, Rev.2
Table 7.1
POSSIBLE CAUSES
Power cord not plugged in.
Faulty wiring to 28V power
supply.
28V power supply fault.
Faulty wiring, bad
Addendum
SOLUTIONS
Check power cord connections.
With input power cord
removed, check wiring and
connections to 28V power
supply.
Check output of 28Vdc power
supply.
Note: At power-up, the fans
are sequenced on.
in normal operation, the
second fan does not turn on
until approximately 3 seconds
after the first fan.
Check AS/0206 to ensure that
Addendum
Therefore,
7.1