B+K precision 5490C Series, User Manual

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2.2 Check and/or Change Fuse
For safety, no power should be applied to the
instrument while changing line voltage operation.
Disconnect all cables connected to the instrument
before proceeding.
Check and/or Change Fuse
-
Locate the fuse box next to the AC input connector in the rear panel
-
Remove the fuse box as shown in Figure 2.2 – AC Input Fuse Removal below
-
Check and replace fuse if necessary
Figure 2.2 – AC Input Fuse Removal
Any disassembling of the case or changing the fuse
should be performed by an authorized service
technician.