HP 8901B Operation And Calibration Manual page 53

Operation Model 8901B
Detailed Operating Instructions Section
The Detailed Operating Instructions provide a complete operating reference for the Modulation Ana-
lyzer user. The instructions are organized into tabbed sections oriented toward specific measurement
types. Besides information on the various measurements, the instructions contain individual discus-
sions of nearly all controls, inputs, and outputs. Also included are instructions for using the many
user special functions.
A guide to using the Detailed Operating Instructions is provided ahead of the
instructions themselves.
Other Sources of Operating Information
Pull-Out
Cards. The
Operating Information and Special finction Information Pull-Out Cards are
flexible plastic reference sheets attached
to
the Modulation Analyzer by a tray located beneath the
front panel. They contain a brief summary of front-panel operation and displays. Also included on the
cards is a complete listing of HP-IB codes, data, and error output formats, error codes, and user special
functions. The cards show a simplified block diagram for the Modulation Analyzer and provide basic
instructions for RF Power and AM and FM Measurements. The pull-out cards are intended to be
a
reference for the user who already has a basic understanding of front-panel operation.
Supplemental Information.
Other information, pertinent
to
operating the Modulation Analyzer
to
its fullest capabilities, are contained in Section
1.
"Principles of Operation for a Simplified Block
Diagram" (in paragraph 1-10) is a fundamental description of what the Modulation Analyzer is and
how it works. This information supplements the block diagrams provided on the pull-out card and in
the Detailed Operating Instructions. "Modulation Basics" (in paragraph 1-11) is a discussion about
the way the Modulation Analyzer makes modulation measurements.
All
of this information helps to
provide a basis for applying the Modulation Analyzer to various measurement situations.
3-2.
OPERATING CHARACTERISTICS OF THE MEASURING RECEIVER
The major operating characteristics of the Modulation Analyzer are provided in paragraph 1-6,
Description, and Table 1-1
,
Specifications. For information on HP-IB capabilities, refer to Remote
section in this manual.
3-3. OPERATOR'S INFORMATION
Fuses
For continued protection against fire hazard, replace the line fuse only with
a 250V normal blow fuse of the same rating. Do not use repaired fuses or
short-circuited fuseholders.
The only maintenance the operator should normally perform is the replacement of the primary power
fuse located within the Line Power Assembly (A30). For instructions on how to change the fuse, refer
to Figure 2-1, steps
1
and 3.
Fuses can be ordered using HP part number 2110-0083, 2.5A (250V, normal blow) for 100/120 Vac
operation or 2110-0043, 1.5A (250V, normal blow) for 220/240 Vac operation.
3-2