Anritsu 681XXC - Manual (Page 204)

Step 3 Replace the fuse in the fuse holder.
Step 4 Install the fuse holder in the rear panel.
Using the screwdriver, rotate the fuse cap
clockwise to secure the fuse holder in
place.
Step 5 Reconnect the signal generator to the
power source.
681XXC OM 6-15/6-16
OPERATOR ROUTINE
MAINTENANCE MAINTENANCE