C O N T R O L S ON P A N E L S
1 1 . M E M O R Y P O S I T I O N , P U S H M E M O R Y F R E E Z E
Vertical position of memory waveform adjustment
knob.
A right turn of this control will move the memory
w a v e f o r m upward, and vice v e r s a .
W h e n this control is pushed, only the main unit
memory b e c o m e s F R E E Z E ; in write condition,
memorized w a v e f o r m is preserved and cannot write in
memory. / "
A t pulled out condition, write-in to main unit memory
becomes possible.
1 2 . D I S P L A Y M O D E
T h i s s w i t c h selects the modes of vertical and horizon-
tal operations.
R E A R : For normal oscilloscope operation. Also, us-
ed to write a signal in memory.
D U A L : This mode for switching between real time
w a v e f o r m and memory waveform through
C H O P operation at approx. 5 0 0 kHz and
monitoring both w a v e f o r m . Write-in to
memory can only be accomplished through
manual operation of S T A R T ( 1 6 ) s w i t c h .
M E M O R Y : For readout of memory w a v e f o r m .
X - Y : For X - Y oscilloscope.
1 3 . A C - G N D - D C
Vertical input selector s w i t c h . A C position blocks D C
component of input signal. GND position opens signal
input path and grounds amplifier input. DC position
directs input of A C and DC components to amplifier.
W h e n the D I S P L A Y MODE is set to R E A L or D U A L , a
trace appears on the scope in GND position of A C -
G N D - D C s w i t c h regardless of the position of the PULL
A U T O ( 2 7 ) .
1 4 . I N P U T
Vertical input terminal.
1 5 . C L O C K
I N T / E X T : Clock selector s w i t c h . Write-in and read-out
occures via the clock inputted at the E X T
C L O C K (35) terminal. In this position, the
w a v e f o r m on the scope cannot be s y n -
chronized. INT position is used for write and
readout. There are t w o functions, S C O P E
and PEN (readout only)
S C O P E / P E N : Memory readout mode selector s w i t c h .
In S C O P E position, readout on the screen is
effected repeatedly.
In pen position, readout to M E M O R Y O U T
terminal is effective each time S T A R T is
depressed. For write mode, use the S C O P E
position.
The memory data from the initial address to
final address are read out once by pressing
this s w i t c h .
1 6 . S T A R T
A pushbutton s w i t c h to write input signal in memory.
T o use this s w i t c h , set D I S P L A Y MODE to R E A L or
D U A L , C L O C K to INT and S C O P E , and S W E E P
T I M E / D I V to 0 . 1 ms-1 s . In the PEN mode, this s w i t c h
functions as the PEN S T A R T push button s w i t c h .
1 7 . T R I G G E R P O I N T - D E L A Y (DIV)
This s w i t c h is used to write input signal in memory
before trigger signal is generated. T h e setting range
covers from 0 div. to 9 div. 1 div. represents 1 0 0
words in memory.
(Refer to " - D E L A Y S e t t i n g " on page 10)
1 8 . W R I T E ( L E D )
Red LED lights while input signal is being written in
memory.
1 9 . R E A D (LED)
Green LED lights while memory data is being read out.
2 0 . M E M O R Y O U T P U T
Memory data output terminal. Readout speed is varied
according to 3 readout modes, S C O P E , PEN and E X T
C L O C K .
2 1 . S W E E P T I M E / D I V
Horizontal s w e e p time selector. It selects s w e e p times
of 1
fis
to 1 s in 19 steps. T h e 1 / i s - 5 0
/is
range is us-
ed for real time.
2 2 . V A R I A B L E / H O R . G A I N
Used for fine adjustment of s w e e p time. Continuous
adjustment between 19 ranges of S W E E P T I M E / D I V
(21) is possible. S w e e p time is calibrated at the ex-
treme clockwise position ( C A L ) . When the D I S P L A Y
MODE is set to X - Y , the signal from the HOR INPUT is
attenuated by S W E E P / T I M E DIV. control.
2 3 . P O S I T I O N
Rotation adjusts the horizontal position of trace as
desired. C l o c k w i s e rotation shifts the trace to the right
and counterclockwise rotation, to the left
2 4 . FINE P U L L X 5 M A G
Horizontal position fine adjuster and s w e e p magnifica-
tion selector s w i t c h . Pull the knob and the trace is
magnified five times as large in the left and right direc-
tions. Brightness is slightly decreased.
Input signal stored in the memory is not magnified
even in the X 5 M A G position.
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