1General Information
38 Keysight E3633A and E3634A User’s Guide
1 Remove the power cord. Remove the fuse-holder 
assembly with a flat-blade screwdriver from the rear panel.
2 Install the correct line fuse. Remove the power-line 
voltage selector from the power-line module.
3 Rotate the power-line voltage selector until the correct 
voltage appears.
4 Replace the power-line voltage selector and the 
fuse-holder assembly in the rear panel.