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6. MAINTENANCE
The following instructions are for use by qualified personnel only. To avoid electrical
shock, do not perform any servicing other than what’s described in the operating
instructions unless you are qualified to do so.
6.1 Fuse Replacement
If the fuse blows, the power lamp indicators will not light and the oscilloscope will
not operate. The fuse should not normally open unless a problem has developed in the
unit. Try to determine and correct the cause of the blown fuse then replace only with
the correct fuse. The fuse is located in a fuse compartment which is part of the AC
receptacle in the rear panel.
Replace the required fuses according to this table.
Line voltage Range Fuse (slow blow)
AC 220V 198V to 242V T 1A, 250V
AC 110V 100V to 120V T 2A, 250V
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WARNING. For continued fire protection, replace fuse
only with 250V fuse of the specified type and rating, and
disconnect power cord before replacing fuse
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6.2 Line Voltage Selection
To select the desired line voltage, simply set the slide switch on the rear panel to the
appropriate voltage. Before you do so, unplug the unit and make sure the proper fuse
is installed.
WARNING
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