
OPERATIONS MANUAL
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5.1
Introduction
This chapter explains how to perform the routine user maintenance required to your
Instrument in optimal operating condition.
The topics covered in this chapter include:
Replacing the Fuse
Cleaning the Air Filter
Cleaning the Instrument External Surface
5.2
Replacing the Fuse
The power fuse IS accessible from the Instrument’s rear panel. See Figure 5.2.
Figure 5.2 DTS-2990 Fuse Location
WARNING
To avoid electrical shock or personal injury, ensure that the Instrument is switched off and
disconnected by removing the line power cord from the power input socket before attempting
to access the power fuse.