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1 . $ P O S I T I O N
Vertical position adjustment for CH1 trace and
Y position for X - Y operation. Waveforms can
be set to any desired vertical position. Turning
this control to the right will shift waveform up-
ward, and vice versa.
2. I N P U T
Vertical input terminal of CH1 (or Y in X - Y
mode).
3 . A C - G N D - D C
D C
Direct input of A C and DC 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 per-
forming DC measurements.
A C
Blocks DC component of input signal.
4 . V A R I A B L E
Vertical attenuator adjustment provides fine
control of vertical sensitivity.
c l o c k w i s e
( C A L ) p o s i t i o n ,
attenuator is calibrated.
5. V O L T S / D I V
Vertical attenuator for Channel 1 ; provides
coarse adjustment of vertical sensitivity. Ver-
tical sensitivity is calibrated in 12 steps from 2
mV to 10 volts per divisiton when V A R I A B L E
control (4) is set to the C A L position.
6. M O D E ( C H 1 , C H 2 , D U A L , A D D )
C H 1 :
Only the input signal to CH1 is dis-
played as a single trace.
C H 2 :
Only the input signal to C H 2 is dis-
played as a single trace.
D U A L :
In the range of 0.5s/div to 1 ms/div,
the input signals to both channels are
switched by about 2 0 0 kHz signal
(CHOP operation).
In the range of 0.5ms/div to 0.5ms/-
div,
the
input
channels are alternately switched for
each sweep ( A L T operation).
A D D :
The waveforms from Channel 1 and
Channel 2 inputs are added and the
sum is displayed as a single trace. If
the channel 2 polarity switch (11) is
pulled out ( P U L L INV), the waveform
from Channel 2 is subtracted from the
C h a n n e l
1 w a v e f o r m
difference is displayed as a single
trace.
a
In the extreme
the
v e r t i c a l
s i g n a l s to
both
a n d
t h e
7. V O L T S / D I V
Vertical
attenuator
provides step adjustment of vertical sensitivi-
ty. Vertical sensitivity is calibrated in 12 steps
from 2 mV to 10 volts per division when
V A R I A B L E control (8) is set to C A L position.
This control adjusts horizontal sensitivity when
the S W E E P T I M E / D I V switch (21) is in the X - Y
position.
8. V A R I A B L E
Vertical attenuator adjustment provides fine
control of vertical sensitivity of C H 2 (or X ) .
This control becomes the fine horizontal gain
control when the S W E E P T I M E / D I V switch is
in the X - Y position.
9. A C - G N D - D C
D C
Direct input of A C and DC 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 per-
forming DC measurements.
A C
Blocks DC component of input signal.
10.
I N P U T
Vertical input terminal for C H 2 (or X ) .
1 1 .
A
P O S I T I O N , X - Y ^
Vertical position
adjustment for Channel 2
trace.
Becomes horizontal
ment w h e n S W E E P T I M E / D I V switch (21) is in
the X - Y position.
Channel
2
signal when
P O L A R I T Y
P U L L
INV), non-inverted
when pushed in.
12. P O W E R L A M P
Lights when scope is on, dims w h e n battery is
low, goes off when battery is too low for
operation.
1 3 . C H A R G E L A M P
Lights when battery is charging, goes off w h e n
battery
is fully charged.
whenever scope is connected to A C power,
regardless of whether scope is turned on or off.
14.
P O W E R / I N T E N
Fully counterclockwise rotation of this control
( O F F
p o s i t i o n )
t u r n s
Clockwise
rotation
Further
clockwise
increases the intensity of the trace.
for
Channel
2
which
position
adjust-
Push-pull switch inverts
pulled
out
( C H 2
signal
Charger operates
o s c i l l o s c o p e
off.
turns
oscilloscope
on.
rotation
of
the
control
5
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