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2.
OPERATING INSTRUCTIONS
This section contains the information needed to operate the Model
7040A
and i
utilize
it in a variety of basic and advanced measurement procedures. Included
are
the
identification and function of controls, connectors, and indicators,
startup procedures, basic operating routines, and selected measurement pro-
cedures.
2-1.
FUNCTION
OF CONTROLS, CONNECTORS,
AND
INDICATORS
Before turning this instrument on, familiarize yourself with the controls,
conne,ctors,
indicators, and other features described in this section. The
following
descriptions are keyed to the items called out in Figures 2-1 and 2-2.
2-1-1
Display
and Power Blocks
Item
Function
(1)
POWER
switch
Push in to turn instrument power on and
off.
(2)
POWER
lamp
Lights when power is on.
(3)
INTEN
control
Adjusts the brightness of the CRT display.
Clockwise rotation increases brightness.
(4)
FOCUS
control
To obtain maximum trace sharpness.
(5)
ROTATION
control
Allows screwdriver adjustment
of
trace
alignment with regard to the horizontal
graticule lines
of
the
CRT.
(6)
ILLUM
control
To adjust graticule illumination for
photographing the CRT display.
(7)
Voltage
Selector
Permits changing the operating voltage range.
(8)
Power
Connector
Permits removal or replacement
of
the
AC
power cord.
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