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Tektronix 2247A

Tektronix 2247A
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a
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E8Q ESB Foy
Fy
Controls,
Connectors,
and
Indicators
CRT,
Power,
and Display
Refer
to
Figure
2-1
for
location
of
items
1
through
9.
Q)
POWER
Switch—Turns
on
or
off
instrument
power.
Press
for
ON
or
OFF.
At
least
one
VERTICAL
MODE
button
will
light
when
the
power
is
turned
on.
The
front-panel
setup
existing
when
the
power
is
turned
off
will
return
when
the
power
is
turned
on
again.
@)
A
INTEN
Control—Adjusts
the
brightness
of
the
A
trace.
B
INTEN
Control—Adjusts
the
brightness
of
the
B
Delayed
sweep
trace
and
the
intensified
zone
on the
A
trace.
FOCUS
Control—Adjusts
the
focus
of
the
crt
displays
(traces,
readout,
and
cursors).
TRACE
ROTATION
Control—Aligns
the
crt
trace
with
the
horizontal
graticule
lines.
This
is
a
screwdriver
adjustment.
(6)
READOUT
Control—Adjusts
the
brightness
of
the
ert
readout
display
(includes
all
alphanumerics
and
cursors).
SCALE
ILLUM
Control—Adjusts
the
illumination
level
of
the
graticule.
if
NOTE
Life
of
the
graticule
illumination
lamps
can
be
increased
by
setting
the
SCALE
ILLUM
control
for
the
minimum
intensity
needed
for
viewing,
and
turning
off
scale
illumination
when
not
needed.
BEAM
FIND
Button—Locates
off-screen
and
overscanned
displays
when
the
button
is
held
in.
Limits
the
vertical
and
horizontal deflection
within
the
display
area
and
unblanks
the
CRT.
2247A
Operators
2-1

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