National Instruments NI PXI-1050 User Manual

National Instruments NI PXI-1050 User Manual Manual pdf 33 page image

Chapter 3 Maintenance© National Instruments Corporation 3-5 NI PXI-1050 User Manualanalog supply. To check whether a fuse is blown, connect an ohmmeteracross the leads. If the reading is not 0 Ω, replace the fuse.3. Use a pair of needle-nose pliers to carefully extract the fuse.4. Take a new fuse and bend its leads so the component is 1.27 cm(0.5 in.) long (the dimension between the fuse sockets), and clip theleads to a length of 0.635 cm (0.25 in).5. Using the needle-nose pliers, insert the fuse into the socket holes.6. Repeat, if necessary, for the other fuse.7. Check the fan filter and, if it is dirty, clean it as described in the SCXISubsystem Fan Filter Cleaning section of this chapter.8. Reinstall the fan and filter.Troubleshooting the PXI-1050Refer to Table 3-1 to troubleshoot the PXI-1050 chassis. The table listspossible causes for power failure and recommends ways to correct theproblem.Table 3-1. Troubleshooting Power FailurePossible Cause What to DoPXI-1050 chassis is notconnected to power source.Make sure that the PXI-1050 is connectedto a live electrical outlet. Try operatinganother piece of equipment from thisoutlet.Power switch is notswitched on.Set the PXI power switch to the Onposition.Circuit breaker is tripped. Reset the circuit breaker. Refer to theResetting the AC Main Circuit Breakersection of this chapter.Power supply has failed. Contact National Instruments.