Keysight Technologies 34420A

5Service
136 Keysight 34420A Service Guide
To Replace the Power-Line Fuse
The power-line fuse is located within the meter's fuse-holder assembly on the rear
panel (see page 28). Use a 250 mAT slow-blow fuse (Keysight part number
2110-0817). This fuse is used for all power line settings.