Unscrewing and reinstalling the thread-forming screws over time will produce a
Note
compromised connection between the device top and bottom.
© National Instruments Corporation
3.
Replace the broken fuse in the socket. Figure 3-1 shows the fuse
location.
0.75A,125V Fuse, Socketed
1
Figure 3-1. USB-621x Mass Termination Fuse Location
4.
Replace the device top and reattach with the screws.
Chapter 3
3-4
Connector and LED Information
1
NI USB-621x User Manual