C O N T R O L S ON P A N E L S
C O N T R O L S O N F R O N T P A N E L
1 . P O W E R / S C A L E I L L U M
Power s w i t c h and scale illumination control. Fully
counterclockwise rotation of this control turns off
oscilloscope. Clockwise rotation turns on oscilloscope.
Further clockwise rotation of this control increases the
illumination level of the scale.
2 . L E D P I L O T L A M P
Lights w h e n oscilloscope is turned on.
3. I N T E N S I T Y
Intensity control. Adjusts the brightness of spot and
w a v e f o r m s for easy viewing. A left turn allows the
w a v e f o r m s to disappear.
4 . T R A C E R O T A T I O N
This control is used to eliminate inclination of horizon-
tal trace.
5 . F O C U S
Spot focus control to obtain optimum waveform ac-
cording to brightness.
6 . C A L
Provides 1 kHz, 1 volt peak-to-peak square w a v e out-
put signal. T h i s is used for calibration of the vertical
amplifier attenuators and to check the frequency com-
pensation adjustment of the probes used with the
oscilloscope.
7 . G N D T E R M I N A L
Earth terminal of the oscilloscope.
8 . V O L T S / D I V
Vertical attenuator calibrated in voltage per division. In
the extreme clockwise ( C A L ) position, the vertical at-
tenuator is calibrated.
Select the position of the control according to the
magnitude of input voltage to obtain the optimum
w a v e f o r m .
Vertical sensitivity is calibrated in 11 steps from 0 . 0 1
to 2 0 volts per div.
9 . V A R I A B L E
Fine adjustment control of vertical sensitivity. T h e s e n -
, -*'sitivity within the 11 ranges of V O L T S / D I V (8) is con-
tinuously adjustable. T h e extreme clockwise ( C A L )
position is used to calibrate the vertical attenuator.
1 0 . t POSITION
T h e rotation of this control adjusts vertical position of
real time w a v e f o r m as desired. A right turn of this con-
trol will shift the real time w a v e f o r m upward, and vice
versa.
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