1. J
POSITION
This control adjusts vertical position during CH1
operation and Y position during X - Y operation.
Waveforms can be set to any desired vertical position.
A right turn of the control will shift waveform upward,
and vice versa.
2. DC B A L
Vertical DC balance adjustment for CH1(or Y).
Adjustment is made so that waveform position is not
shifted when the gain control V A R I A B L E S ) for the
vertical amplifier is rotated.
3. INPUT
Vertical input terminal for C H 1 , or Y input terminal
during X - Y operation.
4. A C - G N D - D C
Vertical input selector for C H 1 , or for Y input selector
during X - Y operation.
A C : The DC component of input signal is blocked
by capacitor.
G N D :
The input terminal opens and the input of in-
ternal amplifier is grounded.
D C :
The input terminal is directly connected to
the amplifier and all components of input
signal are amplified.
5. V O L T S / D I V
Vertical attenuator for CH1 or for Y during X-Y opera-
tion. The scale is graduated in voltage per "div" ( =
cm) of CRT screen area. Calibrated voltage is in-
dicated when V A R I A B L E (6) is turned fully clockwise.
Set this control for proper waveform according to the
input voltage used. Selectable in 11 ranges from
10mV/div to 20V/div.
6. V A R I A B L E
Vertical attenuator for the control of vertical sensitivity
of CH1 or Y during X - Y operation. It continuously
controls between 11 ranges of VOLT/DIV (5). In the
extreme clockwise ( C A L ) position, the vertical
attenuator is calibrated.
7. M O D E I C H 1 , C H 2 , DUAL, A D D , S U B )
C H 1 : Only the input signal to CH1 is displayed as a
single trace.
C H 2 : Only the input signal to CH2 is displayed 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
200 kHz signal (CHOP operation).
In the range of 0.5ms/div to 0.5^s/div, the input
signals to both channels are alternately switch-
ed for each sweep (ALT operation).
A D D :
The waveforms from both channel inputs are
algebraically added and the sum is displayed as
a single trace.
S U B :
The input of reverse polarity to CH2 is added to
the input to CH1 and the algebraic difference
obtained between CH1 and CH2 is displayed as
a single trace.
If CH1 has no input or it is grounded, the
waveform of reverse polarity from CH2 input is
displayed.
8. V O L T S / D I V
Vertical attenuator for CH2. It has the same function
as V0LT/DIV(5), but is also used as X attenuator du-
ring X - Y operation.
9. V A R I A B L E
Vertical attenuator adjustment provides fine control of
vertical sensitivity of CH2. It has tthe same function
as VARIABLE(6), but is also used as X fine adjuster.
10. A C - G N D - D C
Vertical input selector for CH2. It has the same func-
tion as AC-GND-DC(4), but is also used as X input
selector.
11. INPUT
Vertical input terminal for CH2 or X input terminal dur-
ing X - Y operation.
12. * P O S I T I O N , X - Y « *
Vertical position adjuster for CH2. It functions the
same as * POSITIONO), but is also used as X posi-
tion adjuster during X - Y operation.
13. DC BAL
Vertical DC balance adjustment for CH2(or X). It has
the same function as DC BAL(2).
14. LED Pilot Lamp
This lamp lights as the power switch ILLUM(15) is
turned on.
15. P O W E R / S C A L E ILLUM
Power is turned off at the extreme left turn position.
A right turn will set the power to ON and illuminate
the dial scale.
16. INTENSITY
Adjusts the brightness of spots and waveforms for
easy viewing. A left turn will allow the waveform to
disappear.
17. T R A C E ROTATION
This is used to eliminate inclination of horizontal trace.
18. A S T I G
Astigmatism adjustment provides optimum spot
roundness and brightness when used with
F O C U S 0 9 ) . Once it is adjusted, no further ad-
justments are required.
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