Chapter
5 Maintenance
VXI-1200 User Manual
5-6
© National Instruments Corporation
Troubleshooting the VXI-1200
Refer to Table 5-1 to troubleshoot the VXI-1200 FlexFrame to its
component module level. The table lists possible causes why the power
annunciator does not come on and gives recommendations for
correcting the problem. Also see Chapter 4, Understanding the
VXI-1200.
Table 5-1. Troubleshooting
Possible Cause
What to Do
VXI-1200 mainframe not
connected to power source.
Make sure that the VXI-1200 is
connected to a live electrical
outlet. Try operating another piece
of equipment from this outlet.
Power/On/Standby switch
not switched on.
Set the front Power On/Standby
switch to the ON position (Refer
to the Powering on the Mainframe
section in Chapter 3).
Remote inhibit input on the
rear panel of the power
supply is active.
Remove the inhibit by opening the
remote switch (or deasserting the
remote open collector driver).
(Refer to the Using Remote Power
On/Standby Switching section in
Chapter 3).
Blown AC mains fuse.
Unplug AC mains power and
check the fuse. Refer to the
Removing and Replacing the AC
Mains Fuse section in this chapter.
Power supply protections are
active, causing the supply to
be shut down.
Refer to the Power Supply
Protections section in Chapter 4.
Cycle power to clear the fault. If
the fault persists, remove installed
VXI modules (cycle power) until
the fault is cleared.
