Agilent Technologies 89441A manual To change the RF section’s line-voltageswitch, AC Line Voltage

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Warning

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Preparing the Analyzer for Use

To change the RF 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.

Unplug the power cord from the RF section (the section with “Agilent 89431A” silk screened on its lower left rear panel).

Using a small screw driver, pry open the power selector cover.

Remove the cylindrical line voltage selector.

Position the cylindrical line voltage selector so the required voltage will be facing out of the power selector, then reinstall.

	AC Line Voltage
Range	Frequency	Selector Switch
90-110 Vrms	47-63 Hz	100
103-140 Vrms	47-63 Hz	120
198-242 Vrms	47-63 Hz	220
216-264 Vrms	47-63 Hz	240

Only a qualified service person, aware of the hazards involved, should measure the line voltage.

Check to see that the proper fuse is installed. See ‘’To change the RF section’s fuse.’’

Close the power selector by pushing firmly on the power selector cover. Check that the correct line voltage appears through the power selector cover.

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