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CAUTION
• Check on replacing fuses
If the replacement fuses are not provided, obtain replace-
ment fuses of the same rated voltage and current as the
fuses in the fuse holders.
If the replacement fuses are not of the same type, they
may not fit correctly, and failure will occur due to melting
of the fuse.
When the rated voltage and current are over-sufficient,
the fuses may not blow even if there is a risk of damage to
the equipment by fire.
After performing the safety procedures, replace the fuses according to the following
procedure.
Step Procedure
1 Turn off the power switches on the front and rear panels, then remove the power cord from the
power supply outlet.
2 Use a screwdriver to turn the fuse holder cap shown in the figure counterclockwise. The cap and
fuse are removed together as a unit from the AC inlet.
3 Remove the fuse from the fuse cap and replace it with a spare fuse*.
4 Return the fuse cap with the fuse to the fuse holder, then fasten it by turning it clockwise with the
screwdriver.
* Contact the Anritsu service department for fuses by specifying the model name,
order number, name, and quantity.
2.3 Preparations before Power-on
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