Specifications

CONTROLS,
CONNECTORS,
AND
INDICATORS
VERTICAL
Refer to
Figure
2
for location of
items
1
through
1 1.
@uotts/DlV
Switches-Select
the
vertical
deflection
factor for
Channel
1 and
Channel 2
in a
1'2-5
se-
quence.
VAR
control
must be in the calibrated
detent
to
obtain a
calibrated
deflection
factor.
VOLTS/DlV
Readouts-Consist
of two
light emitting
diodes
(LED)
for
each
channel,
located beneath
the
skirt of
each VOLTS/DIV
knob. One
LED or
the
other
will
light to
indicate
the
correct
deflection
factor.
The
10X LED
is
illuminated only
when a 10X
probe
with a scale-switching
coding-ring
contact
is
connected
to the
input of the oscilloscope;
otherwise,
the 1x LED
is illuminated.
(!r)van-Provides
continuously
variable uncalibrated
deflection
factors between
the
calibrated settings
of
the
VO LTS/D
lV
switches.
UNCAL
lndicator-A
LED
that
lights
when the
VAR
VOLTS/DIV
control
is out of
the
calibrated
detent,
and
the
vertical deflection
factor
is
uncalibrated.
POSITION Controls-Determine
the
vertical
position
of
the
display
on the
crt.
ln the
X-Y
mode, the
Channel
2
POSITION
control
moves
the
display
vertically
(Y-axis),
and
the
Horizontal
POSITION
control
moves the
display
horizontally
(X'axis).
CH 1
OR
X
and
CH
2 OR
Y
bnc Connectors-Provide
for
application
of
external signals
to the
inputs
of the
vertical amplifier.
ln
the
X'Y
mode,
the
signal
con-
nected
to the CHl
OR
X
connector
provides
hor'
izontal
deflection,
and
the
signal
connected
to
the
CH
2 OR
Y connector
provides
vertical
deflection.
These
connectors
each include
a coding
ring that acti-
vates the
scale-factor-switching
circuit
whenever
a
10X scale-factor-switching
probe
is
connected.
AC-GND-DC
Switch-Selects
the
method
used to
couple a signal
to
the input of
the
vertical amplifier.
AC
position-Signals
are
capacitively coupled to
the
vertical
amplifier.
The
dc
component
of the
input signal
is blocked.
@
4658/DM44
Operators