FRONT
P A N E L
1.
^
P O S I T I O N
Vertical position adjustment for Channel 1 trace.
B e c o m e s vertical position adjustment w h e n
S W E E P T I M E / D I V switch (21) is in the X - Y posi-
tion ( X - Y operation).
2. I N P U T
Vertical input terminal for C H 1 (or in X - Y mode).
3.
A C - G N D - D C
A C :
Blocks D C component of input signal.
G N D :
Opens signal path and ground input to
vertical amplifier. This provides a zero-
signal base line, the position of which can
be used as a reference when performing
DC measurement.
D C :
Direct input of A C and DC component of
input signal.
4. V O L T S / D I V
Vertical attenuator for Channel 1 which provides
step adjustment of vertical sensitivity. Vertical sen-
sitivity is calibrated in 12 steps from 5 mV to 2 0
volts per div when V A R I A B L E control (5) is set to
C A L position. This control adjusts vertical sen-
sitivity when the S W E E P T I M E / D I V switch (21) is
in the X - Y position ( X - Y operation).
5. V A R I A B L E
Vertical attenuator adjustment provides fine control
of vertical sensitivity. In the extreme clockwise
(CAL) position, the vertical attenuator is calibrated.
This control becomes the fine vertical gain control
when the S W E E P T I M E / D I N switch (21) is in the
X - Y position.
6. MODE
Five-position lever switch; selects the basic
operating modes of the oscilloscope.
C H 1
: Only the input signal to Channel 1 is dis-
played as a single trace.
C H
2 : Only the input signal to Channel 2 is dis-
played as a single trace.
A L T :
Dual-trace operation, in which sweep
alternately displays Channel 1 , then
Channel 2 , input signal. Recommended
for sweep times of 0.5 ms/div to 0.5 / i s /
div.
C H O P :
Dual-trace operation in which sweep is
chopped at approximate 2 0 0 kHz rate and
switched between Channel 1 and Channel
2 traces. Recommended for sweep times
of 0.5 s/div to 1 ms/div.
A D D :
The waveforms from Channel 1 and
Channel 2 inputs are added and the sum is
displayed as a single trace. When the
Channel 2 POSITION control is pulled
( P U L L I N V E R T ) , the w a v e f o r m from
Channel 2 is subtracted from the Channel
1 waveform and the difference is dis-
played as a single trace.
7. V O L T S / D I V
Vertical attenuator for Channel 2 which provides
coarse adjustment of vertical sensitivity. Vertical
sensitivity is calibrated in 12 steps from 5 mV to 2 0
volts per div when V A R I A B L E control (8) is set to
the C A L position.
8. V A R I A B L E
Vertical attenuator adjustment provides fine control
of vertical sensitivity. In the extreme clockwise
(CAL) position, the vertical attenuator is calibrated.
9. A C - G N D - D C
A C : Blocks DC component of input signal.
G N D : Opens signal path and grounds input to
vertical amplifier. This provides a zero-
signal base line, the position of which can
be used as a reference when performing
DC measurements.
D C : Direct input of A C and DC component of
input signal.
10. INPUT
Vertical input terminal for C H 2 or X input terminal
for X - Y operation.
1 1 . y P O S I T I O N , X - Y <+, P U L L
INVERT
Vertical position adjustment for Channel 2 trace.
Becomes horizontal position adjustment when
S W E E P T I M E / D I V switch (21) is in the X - Y posi-
tion (X-Y operation).
When the knob is pulled ( P U L L INVERT), the C H 2
polarity is inverted.
12. POWER LAMP
Glows when oscilloscope is turned on.
13. POWER
Power O N / O F F switch. The power is ON when the
knob is set to right.
14. INTENSITY
Adjusts the brightness of spots and waveforms for
easy viewing. When tamed to the left waveform
will disappear.
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