Filter
Top Products
To change the IF section’s line-voltage switch
The line-voltage selector switch is set at the factory to match the most
commonly used line voltage in the country of destination.
1 Unplug the power cord from the IF section (the section with ‘’Agilent 89431A’’
silk screened on the lower right rear panel).
2 Slide the line voltage selector switch to the proper setting for the local line
voltage.
3 Check to see that the proper fuse is installed. See ‘’To change the IF section’s
fuse.’’
AC Line Voltage Voltage
Select
Switch
Range Frequency
90-140 Vrms 47-440 Hz 115
198-264 Vrms 47-63 Hz 230
Warning Only a qualified service person, aware of the hazards involved, should
measure the line voltage.
Preparing the Analyzer for Use
7-10