CONTROLS
AND INDICATORS
Fig.
2
FRONT
PANEL
© • POSITION/PULL CHOP Control
t
POSITION:
Rotation adjusts vertical
position
of
chan-
nel 1 trace.
In X-Y operation,
rotation
adjusts vertical
position
of display.
CHOP:
ALT/CHOP
selector switch;
pulling
this switch
causes
chop operation.
ALT
operation: Alternate sweep is selected
regardless
of sweep
time
as dual
trace (CH1 and CH2) or
triple
trace
(CH1,
CH2 and CH3).
CHOP
operation: Chop sweep is selected regardless
of sweep
time
at approximately
250
kHz as dual trace (CH1 and
CH2)
or
triple
trace
(CH1,
CH2 and
CH3).
© VOLTS/DIV Control
Vertical attenuator for channel 1; provides step adjustment
of vertical sensitivity. When
VARIABLE
control
© is set to
CAL,
vertical sensitivity is calibrated in 12 steps
from
5
V/div to 1 mV/div.
For
X-Y operation, this
control
provides step adjustment of
vertical sensitivity.
©
VARIABLE
Control
Rotation provides fine
control
of channel 1 vertical
sen-
sitivity. In the
fully
clockwise (CAL) position, the vertical
attenuator is calibrated. For X-Y operation, this
control
serves
as the Y
axis
attenuation fine adjustment.
© AC-GND-DC Switch
Three-position lever switch which operates as follows:
AC:
Blocks
dc component of channel 1
input
signal.
GND:
Opens signal path and grounds
input
to vertical am-
plifier.
This
provides a zero-signal
base
line, the po-
sition of which can be used as a reference when
performing
dc measurements.
DC:
Direct
input
of ac and dc component of channel 1
input
signal.
© INPUT
Jack
Vertical
input
for channel 1 trace. Vertical
input
for X-Y
operation.
© VOLTS/DIV Control
Vertical attenuator for channel 2; provides step adjustment
of vertical sensitivity. When
VARIABLE
control
7 is set to
CAL,
vertical sensitivity is calibrated in 12 steps
from
5
V/div to 1 mV/div.
In X-Y operation, this
control
provides step adjustment of
horizontal sensitivity.
©
VARIABLE
Control
Rotation provides fine
control
of channel 2 vertical
sen-
sitivity. In the
fully
clockwise (CAL) position, the vertical
attenuator is calibrated. In X-Y operation, this
control
be-
comes
the fine horizontal gain control.
© AC-GND-DC Switch
Three-position lever switch which operates as follows:
AC:
Blocks
DC component of channel 2
input
signal.
GND:
Opens signal path and grounds
input
to vertical am-
plifier.
This
provides a zero-signal
base
line, the po-
sition of which can be used as a reference when
performing
dc measurements.
DC:
Direct
input
of AC and DC component of channel 2
input
signal.
9
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