Keysight Technologies 3458A Guide D'utilisation page 69

Getting Started 2
The overlay is held in place by two tabs that secure it to the collar around numeric
key 5. To install the overlay, insert the overlay's left tab into the left side of the
collar. Bend the overlay as shown in Figure 2-7 and press the right tab into the
collar.
Figure 2-7 Installing the keyboard overlay
Keysight 3458A User's Guide 69