CONTROLS
ON
PANELS
11.
MEMORYPOSITION,PUSHMEMORY
FREEZE
Vertical
positionofmemorywaveformadjustment
knob.
A
right
turn
ofthiscontrolwillmovethememory
waveformupward,andvice
versa.
Whenthiscontrolispushed,onlythemain
unit
memorybecomes
FREEZE;
inwritecondition,
memorizedwaveformispreservedandcannotwritein
memory./"
Atpulledoutcondition,write-intomain
unit
memory
becomes
possible.
12.
DISPLAY
MODE
This
switchselectsthemodesofverticalandhorizon-
taloperations.
REAR:
Fornormaloscilloscopeoperation.Also,us-
edtowritea signalinmemory.
DUAL:
This
modeforswitchingbetweenrealtime
waveformandmemorywaveform
through
CHOP
operationatapprox.500kHzand
monitoring
both
waveform.Write-into
memorycanonlybeaccomplished
through
manualoperationof
START
(16)switch.
MEMORY:
Forreadoutofmemorywaveform.
X-Y:
ForX-Yoscilloscope.
13.
AC-GND-DC
Vertical
input
selectorswitch.ACpositionblocksDC
componentof
input
signal.GNDpositionopenssignal
input
pathandgroundsamplifier
input.
DCposition
directs
input
ofACandDCcomponentstoamplifier.
Whenthe
DISPLAY
MODEissetto
REAL
or
DUAL,
a
trace
appearsonthescopeinGNDpositionofAC-
GND-DC
switchregardlessofthepositionofthe
PULL
AUTO
(27).
14.INPUT
Vertical
input
terminal.
15.
CLOCK
INT/EXT:
Clockselectorswitch.Write-inandread-out
occures
viatheclock
inputted
attheEXT
CLOCK
(35)terminal.Inthisposition,the
waveformonthescopecannotbe
syn-
chronized.
INTpositionisusedforwriteand
readout.Therearetwofunctions,
SCOPE
andPEN(readoutonly)
SCOPE/PEN:
Memoryreadoutmodeselectorswitch.
In
SCOPE
position,readoutonthescreenis
effectedrepeatedly.
Inpenposition,readouttoMEMORYOUT
terminaliseffectiveeachtime
START
is
depressed.
Forwritemode,usethe
SCOPE
position.
The
memorydata
from
theinitialaddressto
finaladdressarereadoutoncebypressing
thisswitch.
16.
START
A
pushbuttonswitchtowrite
input
signalinmemory.
To
usethisswitch,set
DISPLAY
MODEto
REAL
or
DUAL,
CLOCK
toINTand
SCOPE,
and
SWEEP
TIME/DIV
to0.1ms-1s.InthePENmode,thisswitch
functionsasthePEN
START
push
button
switch.
17.
TRIGGER
POINT
-DELAY
(DIV)
This
switchisusedtowrite
input
signalinmemory
beforetriggersignalisgenerated.Thesettingrange
covers
from
0 div.to9 div.1 div.represents100
wordsinmemory.
(Refer
to
"-DELAY
Setting"onpage10)
18.WRITE(LED)
Red
LEDlightswhile
input
signalisbeing
written
in
memory.
19.
READ
(LED)
Green
LEDlightswhilememorydataisbeingreadout.
20.MEMORYOUTPUT
Memorydata
output
terminal.Readoutspeedisvaried
accordingto3 readoutmodes,
SCOPE,
PENandEXT
CLOCK.
21.
SWEEP
TIME/DIV
Horizontalsweeptimeselector.Itselectssweeptimes
of1 fis to1 s in19steps.The1 /is-50/is rangeisus-
edforrealtime.
22.
VARIABLE/HOR.
GAIN
Used
forfineadjustmentofsweeptime.Continuous
adjustmentbetween19rangesof
SWEEP
TIME/DIV
(21)
ispossible.Sweeptimeiscalibratedattheex-
tremeclockwiseposition
(CAL).
Whenthe
DISPLAY
MODE
issettoX-Y,thesignal
from
theHOR
INPUT
is
attenuatedby
SWEEP/TIME
DIV.control.
23.
POSITION
Rotationadjuststhehorizontalpositionoftraceas
desired.
Clockwise
rotation
shiftsthetracetothe
right
andcounterclockwiserotation,tothe
left
24.FINE
PULL
X5MAG
Horizontalpositionfineadjusterandsweepmagnifica-
tion
selectorswitch.Pulltheknobandthetraceis
magnifiedfivetimesaslargeinthe
left
and
right
direc-
tions.Brightnessisslightlydecreased.
Inputsignalstoredinthememoryisnotmagnified
even
intheX5MAGposition.
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