OS-9020P
GoldSt<tr
ELEKTITONIKK
CO.
&
ASK
LYNGBOVEII:N
t-nxst-'.vAc
55 34
48 93
TLF.
FAx
52
55
34
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i
I
OSCILLOSCOPE
SERVICE
os-g020P
MANUAL
€I
GoklStor
Jrrecision
Go.,LtGl.
GoldSt<tr
OSCILLOSCOPE
SERVICE
ASK
TLF.
os-g020P
MANUAL
& CO.
E l
ss
I'I,I.]KT'RONIKK
LYNGB['VEIEN 52
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4tt
34
FAX
93
troRwA
y
s-5 34
1l
10
M
OoklStcrr lrneclslon
#20,
Yoido-dong,
19th
Fl.,
Yoido
Tel:(02)
Fax:
East
P O.
787-6862
(02)
7 84- 1 646,1
Gold5tctr
13013
East 166th Street
Tel:(213)404-0101
(213)921-6221
Fax:
Tlx;B'l
Q-563-57 1 I
Yongdungpo-gu.
Tower,
Box 4Q4
Lucky-Goldstar
6828
-681
87
frreclslon
LGILA
Seoul
Twin
Ttx:GSFADAR
8 Cable
Cerriors,
:
GOLDRADAR
Ca,90i01-2226,
Go-,Ltcl.
'l
80-121,
Towers
K22938
Korea
U S A
Servicing
Precautions
Please read alI instructions
before
Disconnect
enclosure.
Instructions
1. To naintain the
2. After turning on
3.
4. For
Warranty
servicing.
power
before use.
Triple-Iine
are using the doubleline
of
product
product
the
quality
can be changed without
cord fron
precj"sion
power,
power
inprovenent
cord
to the
earth at the
in the
power
and reliabili.ty
please
is to
cord, make sure to
the exterior
service rnanual throughly
source before
allow a
be used for the
power
design and
prior
notice.
opening the
of the
1S-ninute
product.
connect
source
product
per-heating
for safety.
specifications
use
But when
the earth
it.
period
you
terninal
of
the
Warranty
purchase.
In case of
provided
We charge
when the
accident, we
Notice
This
there
If
servi.cing
service covers
technical failure
by our service
for
failure is a result
Serivce Manual
are
unit,
period
a
center.
repairs after
charge for
any specific differences
please
repairs
describes
contact
(iol-dStar
of
within
the
one
of user's
regardless
the
most typical
GoIdStar Precisj.on
Preci-siorr
year
one
year,
one
year
neglect,
between
fron the
repair
warranty
natural
of
the warranty
product
this
date of original
service
period
Manua] and
Co.. Ltd.
expires.
disaster
of this
Co-,
wiII
period.
model.
the
I-td.
be
or
-2-
CONTENTS
]-. SPECIFI
ACCESSORIES
2.
PREVENTI\/E MAINTENA\ICE
3.
4.
CIRCIJIT
5. CAI-IBRATI
Calibration
5-1.
Test Equipment
5-2,
Prelininary
5-3.
Prelininary
5-4.
Initial Starting
5-5.
CATI
DESCRIPTION.
Interval ..
Procedure ..
Control Settings
ON
.
ONI
Required
Procedure
....
.......
7A
13
13
13
13
14
14
SEMI COI\IDtTCTOR
6.
CONFI GTIRATI
7- EI-ECTRI
(WITFI
EI-ECTRI
A-
BI-OCI{ DIAGRAM.
9.
Lg.
1- 1-. WIRTNG DIAGRAM .
L2.
A3.
SCI{EMATIC
MECFIANI
vI EW
EX:TERNAI-
CAI-
ADJTISTMENT I-OCATIONS)
CAI-
CAI-
()1\I
PARTS ARRAAIGEMEIVT
PARTS
DIAGI?AMS
PARTS I-I
VIEWS
I-EAD
I-I
ST
ST &
.......
EXPI.-ODED
24
25
27
43
44
58
59
62
-4-
1.
SPECIFICATIONS
PART SPECIFICATIONS
'
CRT
1) Configration
useful
screen
and
6-inch rectangular screen with internal
(
1 div = 1
Znm
subdivisions
Cn
) ,
along
marking
for
the centraL axis.
neasurenent of
graticule
rise
8x10
;
tine.
Div
Accelerating
2)
Phosphor
3)
Focussing
4)
Trace
5)
Intensity control
6)
r
Z-Axis input
(Intensi
Input signal
1)
Band-width
2)
Coupling
3)
Input inpedance
4)
Maxinun
5)
r
Vertical
Band-width
1)
rotatj.on
Modulation)
ty
i"nput voltage
Deflection
DC coupled
potential.
(-3dB)
+1.9KV
approx.
(ref.
cathode)
P43
possible
provided
provided
Posi.tive
going
signal decreases
intensity
+svp-p
or nore
cases noticeable nodulation at nornal intensity setti.ngs.
DC - ZMHz
(-3dB)
DC
-
DC to
DC to
ZAMHz
IAMHZ
ZAK
30V
nornal
magnified
30Kohns
pQ+pgak
(
(CH1
AC
only)
)
signal
coupled
Modes
Deflection Factor
4) Accuracy
Input
5)
Maxinun input voltage
6)
7) Input
inpedance
coupling
to
LbHz
lAHz
ZLllHz nornal
to
MlllHZ nagnifj.ed
(CH1
only)
CHl, CHZ,ADD. DUAL ( CH0P ; Tine,/div switch
SnV./div
to
Continuously
x5 MAG
;
approx.
DirectiZSAV
ALT ; Tine,/div
SV,/div
in
variable
10 calibrated
between steps
lnV,/div to 1V,/div
nornal
(Dc+peak
x3% magnified
lM-ohn
in
AC), with
in 10 calibrated
paralIeI
probe;refer
switch
steps of
at
least I:2.5
t 5%
with
to
DC-GND-AC
-5-
-
A.Zs to
ZnS to 0.ZuS
a l-2-5 sequence.
steps.
(CH1
(CHl
only)
30pF
probe
specification
5nS
)
only)
,
Rise tine
8)
PART
17.5nS
or
less(35nS
SPECIFICATIONS
or less; xb MAG)
;
1)
9) CHl
10) Polarity
r
1) Display nodes
2)
3) Sweep
4) Accuracy
r
1)
2) Source
3) Coupling
4)
5) Sensitivity
out
invertion
Horizontal Deflection
Tine base
nagnification
Trigger
Modes
Slope
Frequency
Systen
AUTO, NORM
TV-H
TV-V,
and
Z5nV/divXZA%
A X-Y
b.2us/div b
uncalibrated continuous
10 tines
Note
;
t3%,
f.5%
xlt
,
A.ZS/div
(naxinun
50nS,/div.ZLnS/div of
QC
INT
(VERT)
INT
EXT
into 50 ohns
VARIABLE
to 40C), additional error for nagni.fier
auto,
(
CH1, CHz, VERT
4.5 div
0.2
at Least 1 di"v
ZAHz
only
CH2
in 19 calibrated
control between steps
sweep
norn,
20Hz-ZMHz ZAHz-ZAMHz
rate ; ZLnS/div)
TIME BASE
TV-V, TV-H
)
AC
for-
A)
Q.
llp-p
LINE
or 1.
t0llHz(
to
steps,
are uncalibrated.
EXT
,
1.5 div
0.8 Vp-p
0Vp-p
-3dB
)
L-2-5 sequence.
at least
(3.0)
1:2.5
t2%
2)
3)
tC
t,
1)
2)
3)
I
1)
2)
rE
t
1)
External trigger
6)
Input
Max. input
inpedance
voltage
approx. 1 M-ohn
250V ( DC
+
paek
AC
2)
)
3)
4)
5)
PART
*
X-Y 0peration
1) X-axis
(same
Deflection
Accuracy
Frequency
as
SPECIFICATIONS
except
CHl
factor
;
response;
;
X5%
the following)
for
as that
sane
DC to SAAKHz
of
(
CH1
-3dB
J
Y-axis
2)
phase
X-Y
3)
*
Calibrator
*
Power
l) Voltage
2) Frequency
3)
t
1)
supply
range
Power
Physical Charac.
Weight
consunption
difference
(probe
adj.) \KHz(+ZAD frequency,
duty
3'
ratio : 40
-
6A%
voltage
lAA(90-rlgv)/AC
-
(108
r20
229
244
(r98
Qrc
r32V) /
-
242V) / AC A25AV
-
Z50V) /
sane
as cHz
or less ( at DC to
0.5V( XLT%)
range fuse
square wave
50KHz
2A25AU
AC
AC
zA25AV
Az5AV
5A / 6AHz
approx.
35W
7.SKe
)
t\
Dimension
r
Environnental
teri
1) Temperature range
for rated operation
2) llax. ambient
operating tenperature
3) Max.
tenerature
4)
Humidity range
rated operation
Max.
5)
operating
c
sti
storage
anbient
Charac-
for
humidity
nn
320
+10'
0'C to
-2A"Cb
(W)
to
C
-7-
l4A
x
+35' C (
+40" C ( +32
+7A"C (
45% to
to
35%
(H)
nn
+50'F
-+"Fto+158'F)
85%
85% RH
x 43A
'F
RH
to
+104'F
to
(L)
mn
+95'F
)
)
ACCESSORIES
2.
(1)
Operation
(2)
Probe
(3)
Spare
(4)
Power
nanual
(option)
Fuse
cord
-8-
PREVENTT
3-
VE
MAT
NTENAAICE
Preventive maintenance,
instrunent breakdown and
The severity of
deternj.ne the
preventi.ve
Disassenbly
Renove
the
parts
Cleaning
The
require. Accumulation of dirt
breakdown.
The
instrunent. Loose
a soft
Dirt that renains
detergent
Cleaning
way
velocity strean
applicator
delicate
maintenance
the screws in the top
top cover
of the instrunent are
instrument should
covers
cloth or
the interior should
to clean the
conponents.
environnent
frequency of
fron
provide
snall brush.
water
and
of air. A soft-bristle
is useful
when
is
the instrunent and
be cleaned
protection
dust accunulated on
be
can
solution.
interior
for
perforned
may
improve the
to
which this
naintenance.
preceding
cover of the
now accessible.
in the instrument can
against dust in the interior of
removed with
Abrasive
only
is
to
cleaning
on
a regular
reliability of the oscilloscope.
instrument is
A
convenient tine to
recalibration
instrument.
Iay
aside.
as often
be occasionally
blow off the
in
as operating conditions
these covers
a soft cloth
cleaners should
brush or a cottontipped
narrow spaces
of
dust
basis, can
subjected
the instrunent.
Gently
Most
of
cause component
can be renoved with
danpened in a nild
not
necessary.
with
a dry, low-
or for cleaning
prevent
perform
seperate
the
internal
be used.
The
will
the
best
nore
Visua1
The
brocken
boards,
visible
if
other
the
Inspection
instrunent
heat-damaged
overheating
should be inpected
connections,
and heat-danaged
defects
trouble
is apparent
conponents
in the
is inportant
improperly
parts.
;
are
instrument
to
occasionally
seated
the corrective
however,
found.
;
prevent
transistors,
particular
Overheating
therefore,
-9-
for
procedure
correcting
recurrence
such defects
danaged circuit
for nost
care
nust
usually indicates
the
of the
damage.
as
be
taken
cause
of
4. CIRCT]IT
The block diagran
the
of
section schnatics diagrans
Refer
electrical
circuits.
to these
values
DESCF?IP:trION
(
page
Conplete
diagrams throughout
and relationship.
43
shows the overall
)
schematics
(
page
44 to
the
relationship
of
each circuit are also
57
).
following circuit description
between
given
all
in
for
ATTENUATOR
Signals
applied
to the input
or they can be disconnected
position.
GND
Attenuation
The attenuator
+lA,
+2,
are
+tAA circuit.
+4,
between
CH1 ( CHz
Signal
(
0105
follower, the
Q101 ( 0105
is feed
by 5 tines.
Q104
the signal of
And
paraphase
to a
is deternined
by the setting
that is controlled
=10 circuits are in RA101
S101-AZ ( StgZ-AZ ) and
IT.TPUT A}IPLIFIER
)
fron the input attenuator is connected to
When
).
back to
excessively high-anplitude signals are applied
signals wiII be
When
).
5801
AMP through
0P
QZAG ( 0306
signal by differential
is open
(1)
connector
+he
to
can be either
internal circuit
the
of
by the
VlLT
/
(
RAIAZ ) and =10, +LAA
5101-82 ( SLg2-82
(2,3)
Q103 ( 4106
(
x
SMAG
R109 anplfies the output
base is converted
)
anplifier.
and
)
the signal that
),
coupled
AC
when 5901
(
V1LT / DIV switch.
DIV
switch has
;2,
circuits
).
source follower
to
gate-source
the
signal of
fron a single-ended
or DC coupled,
5902 ) is
+4,
Q101
the
source
junction
of
simal
CH1 ( CHz ) PREAilP &
Vertical
They also contain a stage to
trigger
only. And the trigger
horizontal
The trigger
level necessary to drive
preanp
preanp
VERTICAL
The vetical switching
input signals to be
Input signal
that is controlled
the TIME / DIV
In
shared
ALT
the
tine basi.s.
circuits
circuit for
anplifier
preanp
CON'IBOL
combinations
switch.
and
CHOP modes, both channels
TRIGGER
provide
preamp
in the X-Y
circuit
the
circuit
connected
that
by the vert.ical
PICK
OFF
control
provide
internal triggering fron
of
anplifies the
trigger
determines the
to
can
a sample of the
provides
CH1
position
generator
vertical
the
be displayed
node switches
_IA_
vertical
of
the
CH1
the
of
internal trigger signal
are alternately
TIIIE
circuit.
input signal or
nain
are selected
and the
position.
input signal
the
CH1 or
input
/
anp.
simal to the
DIV switch.
X-Y
displayed
to the
signal
CH2
to the
conbination
by
D
FLIP-FLOP
position
on
of
a
of
VERTICAL MAIN AMPLIFIER
(7
)
The vertical nain amplifier
the vertical deflection
deflection
TRIGGER
The Trigger Anplifier circuit
generator
The Trigger
node switch, TV synchronization
The Trigger
etc.
vertical trigger
external trigger input BNC connector
The Trigger Generator Circuit has the circuit to
and slope.
The signal type is AC.
The Trigger mode
ci rcui t.
In the N0RM node, the sweep
generated,
is
as N0RM mode, except that a
pulse
The Base Signal of
is amplfied
etc
The anplfied signal, the collector
U109,
The N0.8
outputs in
plates
AMPLIFIER
circuit.
is
not
pin
of the
Generator
Source Switch
preanps, power
Switch
0peration in
present
Q130
by
Q345, Q346.
N0.8
signal
of
circuit consists
or the
pin
U109
circuit
signal before
CRT.
produces
determines the operating
signal
the
free running trace is displayed when
aplitude of
which
enters through three switches,
of
U109.
is called
provides
it is
trigger
of the trigger
circuit, trigger
selects one
line source
connected to front
generated
is
AUTO, TV-V mode is the
signal of
trigger signal
the
applied
signal of
applied
the trigger
Q346,
final
naplification for
the vertical
to
(8)
pulses
amplifier, U109
control the trigger
mode for the trigger
only
enters the N0.2
start
to
source, trigger
the signals fron the
to
this instrument,
panel.
the trigger signal
sane
signal
trigger
or
the sweep
operation
is not adequate.
Q34?
and
level
a trigger
and
pin
pulse.
generator
of
SWEEP GENERATOR
Sweep
The sweep
the
The signal in the
amplified sj.gnal appear
enters the Base of
This sweep signal is
generator
The sweep
sweep
generator
gate
of
time.
gate
Q129,
circuit.
gate
circuit consists of
on, a very
is
input
gate
Q327
generated
circuit
-
gate
Q342,
(
11
sweep
little
Miller Integrator, by
of
Q129
in
the Enitter of
through R551.
produces
negative
is anplified
on comnend
an unblanking
(9)
circuit
going
R-C network.
by Miller
is ca]Ied
trigger
gate
-
and niller
signal
pulse
to unblank
is
Integrator,
sweep signal
)
integrator.
generated
the
fron
the
the
CRT during
in
and
trigger
HORIZOT.ITAL
The
Horizontal
drive the
The
Horizontal
The
first stage
require
output
The
ouput signal
horizontal
The output
horizontal
The Horizontal
horizontal
In
all
of the
generator.
signal
preamp
CRT horizontal
very little
change.
deflection
signal
deflection
position
position
horizontal
In the
of the
circuit
OUIPIJT AilPLIFIER (12)
main
change
DIV
/
of
deflection
provides
plates.
consists
anplifier
at the
arnplifier
anplifier
has
the
select
is the
the
TIME
Anplfier
the
final
of
five
has a low
input to
}IZS,
e126,
horizontal
switch
sawtooth
DIV
/
is
the signal
systen.
except
Output Anplifier
deflection
0utput Anplifier
horizontal
voltage
fron
cornplenentary
plate.
from
Output Anplifier
of the
output
X-Y
Horizontal
of
the vertical
conplenentary
p1ate.
functions.
TIIIE
anplifier
position
Output
signal
cascade
produce
Q127
stage
input
drives
Q128
magnification
X-Y the
signal
select
switch
fron
anplification
anplifiers.
inpedance
the
desired
the
drives
from
the
the
and
input signa]
the
sweep
the
input
channel
to
and
right
left
the
I
POWER
The
Volts,
source
systen,
STIPPLY (14)
Iow voltage
*5
( +195
horizontal
CRT CIRCUIT
The
CRT
Circuit
The
circuitry
high voltage
The
calibrator
amplitude
This
output
(
II{Ilz
and
connector.
)
Power
Volts,
volts
provides
consists
regulator,
circuit
frequency.
signal
Supply
+12 Volts,
used to
)
deflection
the voltage
of
the z-axis
high
produces
available
Circuit
*56
operate
systen
woltage
square
a
as
a square
provides
Volts,
the
and
levels
amplifier,
rectifier
five
+I4A
vertical
driving
cRT
and control
and the
wave
output
wave
Voltage
regulated
Volts
deflection
(13)
high
sources
and
)
three
circuit.
circuits
voltage
CRT controls.
signal
at
with
the
oscillator,
PROBE
-tz
(
unregulated
to
operate
accurate
ADJUST
0.bVp-p
CRT.
-t2-
5. CAI-IBRATI
ON
GoldStar Precision
Contact
5-1. Calibration
To
at least
if
5-2.
The
equivalent,
The
for
Therefore,
exceed
All
operating within
test equipnent
nanual
the
GoldStar Precsion
naintain
used frequently.
Test
following
given
accurate
the list
the test equipment
instrunent
every
equipment required
test
are requl.red
specifications
calibration.
the
for the
Ltd.
Co.,
interval
accuracy,
TAAA hours
equipment(Table
for
for
specifications
specifications.
ia assuned
the
Iisted
are not
test
given
equipnent
provides
Co.,
of
the
specification.
Ltd.
perforn
operations
5-1
complete
the test
of any
to
in this
if nore
conplete
office.
the calibration
or every
see
;
calibration
equipnent
test
equipment
be
comectly
Operating
procedure.
information
instrunent
six nonth
page
23) and
are
the ninimun
used
calibrated
Refer
is needed.
repair
of
the
accessories.
of the
instructions
to
0S-9020P.
nust
neet
and
the
inst,ruction
and calibration.
OS-}AZ4P
or
necessary
or
for
the
Prelininary
5-3.
This
instrunent
(
t 5C
1.
Connect the
2.
Set the instrument
Setting.
3.
See the
)
procedure
should
for
best overall
instrunent
Allow at
Adjustment
be calibrated
accuracy.
to
AC
controls
least
Locations
fifteen
at an anbient
Iine voltage,
given
as
minutes
in the
in the
pulrout
tenperature
Sa/6aHz
preliminary
of warnup
pages(see
of
line source.
Control
before
proceeding.
page
2E).
+ZAC
-13-
5-4.
Preliminary
control settings
Preset the
the calibration
instrument controls
procedures.
the settings
to
Controls Settings Controls
Focus Midrange
@
TRACE ROTATIONAs
O
INTENSITY
O
-
VERTICAL
desi.red
Midrange
_
o
(E
O
@
V-POSITION
@
V_VARIABLE CAL(fully
@
Mi drange
clockwise)
@
@
INPUT
COUPLING
(AC-GND-DC)
GND
@
given
below,
when
starting
Settings
-
HORIZOI'ITAL
-
H-PosrTrON Midrange
x1OMAG Normal
TIME/DIV
VARIABLE CAL
-
LEVEL Midrange, nonal
SLOPE
1nS
TRIG
+
-
(putt)
VOLTS,/DIV 5
@
V_MODE
O
INVERT Nornal
CHz
C
Initial
5-5.
1.
Push the POWER switch.
2.
Wait a few seconds for the cathode ray tube
A trace should appear on the display of the
If
setting
4.
Adjust F0CUS
the
trace
Readjust POSITI0N controls if necessary, to
starting
disappears, increase ( clockwise ) the
until
the trace is
control for the best focused display.
mV,zDIV
procedure
easily
MODE Auto
@
TRIG
@
observed
SOI'RCE
(
CRT
CRT.
center
(CH1)
INT
to warm up.
)
INTENSITY
the trace.
control
POWER
STIPPLY
SYSTEM
NOTE
: Before
(see
Control
Preset the
Check
t1l
a.
b.
c.
d.
e.
f.
Check
lU
a.
b.
you
page
settings
controls as
Low-voltage
Connect
Connect
Connect
Connect
Connect
Connect
High-voltage
Connnect
High-voltage
by
Check
begin,
see ADJUSTMENT
25)
given
Supply, if necessary.
the digital voltneter
:
*11.75V
the DVM fron
in
to
the - 12 volt line.
: - 11.75V to
the DVM fron
1.4.
?5V
:
the DVM from
:
*54V to +58V
the
DVM fron the
:
*137V to *I42Y
the
DVM fron the
+185V
:
the DVM
DVM
for
reading
Probe.
the * 5 volt ]ine.
to
+5.25V
the *56 volt I ine.
+2lAY (JlA)
to
Supply.
the
to
as
the
Prelininary
+I2.25V
-I2.25U
+ t4g
+195
volt
H. V test
-1705
LOCATI0NS in
Control
(
DVM ) from the
volt
line.
(unregulated)
(
H. V and
point
-
line.
-1895V
pullout
the
Settings.
* 12 volt line.
(
PB101-9
(
P8101-6
(
PBL0I_T2
(
R183-down
(
R183-up
DRV
CRT
(P106-6)
pages.
)
)
)
)
)
BD)
Control Setting
Preset
Check,zAdjust
t3l
the
controls
MODE switch to
a. Rotate the
b.
Observe
c.
Adjust the
an appear.
DI
given
as
Bias.
CRT
the
AUTO
INTENSITY to the
the trace
CRT
of
Bias
Adjustment
SPI-AY
the
in
position,
direction of
CRT.
INTEN
Prelininary
and TIME,/DIV
VR119 so that
Control
switch to
I o'clock.
the trace
Setting.
the lnS.
makes
-15-
Check,zAdjust
t4l
a.
check
b.
Adjust
horizontal
Check,zAdjust
tsl
a.
TIME,/DIV
b.
Set the
figure,
Trace
that the
the TRACE
trace
graticule
ASTIGnatisn
switch
to
IIITENSITY
using
position
Rotation.
ia
R0TATION
lines.
and
the
X-Y
control
controls.
parallel
for
FOCUS
position,
for
a
to
the
a
trace that
and
snall
spot,
horizontal
parallel
is
AC-GND-DC
as the
to
following
center
with
DC.
line.
the
The
c.
Check that
d.
Adjust
a round
spot
the
the
FOcus
spot.
spot
is round.
adjustnent
and
ASTrG
center
adjustnent
of
vRll?
scneel
for
-16-
I{ORI
ZONTAI-
SYSTEM
Control
Preset
t6l
l7l
t8l
settings
controls
the
Check,/Adjust
a. Set
b.
c. Check
d.
the input AC-GND-DC
TIME,/DIV
that
center
Adjust
eight DlVisions,
the H GAIN
with the center
Check,zAdj
a. Set
b. Set
c. Check
ust
the TIME,/DIV
x
10 MAG
that
graticule
Adjust
d.
time
Check,zAdj
Set
a.
Being the
b.
the MAG GAIN
marks align
ust
the TIME,/DIV switch
the Ieft
the x1OMAG
then
Observe
Adjust
d.
end
the
the MAG CENT
of the
as
given
the Prelininary
in
Horizontal Gain.
to DC.
switch
to the Lms.
the time narks align
within
adjustnent VR114
eight
Horizontal
one-cycle tine narks
the
lines,
graticule
x
10 MAG
switch
to the 1mS.
within 5%.
adjustnent VR115
with the
MAG
CENT.
to the
x1OMAG
end of
novenent of
switch
the trace is brought
switch
to the
to the
the left end
adjustment VR116
trace within t
with the
3%
so that
lines.
Gain.
align with
ten division
1 nS.
0.
x1OMAG,
position.
xl
A.ZDIV.
Control
graticule
the
Settings.
line over the
tine narks align
the ten
so that
graticule
to the center
the one-cycle
Iines.
point
of the trace.
for the movenent
division
and
of the
Check,/Adj
t9l
a.
b. Set
c. Check that
d.
Check,zAdjust
i10l
a. Set
b.
c. Set
d. Check that
e. Adjust
ust low
the tine mark
Set
spaced sweep accuracy.
generator
the TIME,/DIV swi.tch
tine narks
the
niddle eigth
Adjust the
with the middle
divisions,
SmS,zDIV
adjustnent VR106
eight
High speed
graticule
sweep accuracy.
the input coupling switch to
Set
the
time
nark
generator
the TIME,/DIV switch to
the tine marks align with the
the middle eight
VC113
graticule
Iines.
division.
that the time narks coincide whth niddle eight
for
to
5mS.
align
within
for 10
the
-77-
tine narks.
5mS
with the
3%
so
lines.
DC
p
S tine narks.
10 r S.
graticule
line
over
the
that the time narks coincide
graticule
lines over
\/ERTTCAI-
SYSTEM
Control
Preset
tlll
ll2l
settings
the controls as
Check,zAdjust
a. Set
b.
c. Change
d.
e. Adjust
f.
Check,zAdjust
a.
b.
c.
d.
e.
f.
the
VoLTS,/DIV
Position the
the VOLTS,/DIV switch to the
Check
center line.
(
Repeat
is
Set
the MODE
Set
Set
Next, Adjust the vertical
identical
Set
Check
graticule
Adjust
difference
that the trace is within
the
CHZ
noted
for a trace
),
part
when changj.ng
TIME,/DIV switch to the lnS
the
switch
the
CH1
the V-MODE
the V-M0DE
that the trace is identical
the ADD
given
Balance
DC
trace
CH1 ( CHz
(a)
through
ADD BALANCE.
to
and
CHz AC-GND-DC switches
switch
with the horizontal center
switch
within
Iine
BALANCE adjustnent VR118 for
with the
in the
(
switch to the
to the
)
at the horizontal
AUTO
to
to
t 0.5 division.
horizontal
Prelininary
attenuator
Step
horizontal
DC BAL
(e)
the
position.
adjustnent, VR101
until less
VOLTS,/DIV
tDUALl.
Position control that the trace is
tADDl.
Control
balance
position.
bnV
center line.
position.
10mV
division of the horizontal
1
0.
center
than
setting.
position,
to
GND.
graticule
with the
center
horizontal
graticule
Settings.
).
(
CH1
line.
A.A5
two tines of the
division shift
Iine.
line.
or
)
center
VR109
Check,/Adjust
t13l
a.
b.
c. Adjust
Confirn
Check
(
CHz
Vertical
vertical
the
that
the
the Position
for a trace at the horizontal
)
Position Center.
P0SITION control
trace
within
is
Center
adjustnent VR103 ( CHI
at the nidrange.
1 division.
center line.
),
VR112
-18-
Check,/Adjust
t14l
x1
AC
GAIN.
a. Set
b. Set
c. Set
d. Connect
e.
f. Check
g.
Check,/Adjust
t15l
the
TIME,/DIV switch to the
the
V0LTS,/DIV
the
AC-GND-DC switch to DC.
square-wave
the
Adjust the
deflection of screen.
that the high-voltage level of
Adjust
for a flat
output anplitude
To
be
the x 1 AC
level.
Vertical
switch to the 10mV
flat
GAIN
Gain.
1nS
generator(
of that
J II
adjustnent VRIA2
position.
position.
using lKHz
generator
pulse
is
LJ-
(
CH1
output
for 5 division
fIat.
)
range
VR110 ( CHZ
).
)
a.
b. Connect
c.
d. Check
e. Adjust the GAIN
f. Check
Check,zAdjust
i16l
a.
b.
c. Connect
d. Check
Check,zAdjust Vertical Step
ll7l
a.
b. Set
c. Connect the fast-rise,
d.
e.
the
Set
switch
Set
display
Set
Set
Set
square-wave
and cable.
Set
generator
CH1 : Set
CH2
VOLTS,/DIV
to DC.
the standard
the
standard
for a di.splay of five divisions.
of 5
aII the
Input
the
VOLTS,/DIV
the AC-GND-DC switch to DC.
the L-C meter to the input terninals.
the input capacity
the
VOLTS/DIV
the
TIME,/DIV switch to
generator
the square-wave
output for a
the
Then, adjust
: Adjust
switch to
amplitude
amplitude calibrator for a
adjustnent
divisions wiLhin 2%.
VOLTS,/DIV
Capacity
switch to 10mV
switch to the 10mV
to
generator
YCLLZ
the
for
VC1ll
VCILA for
the 10nV
calibrator to
VR104 ( CHl
switch
(
for approxinately 30pF.
Response.
positive
the input.
divisions
5
a square wave
for over-shoot
settings.
ATT : =1
position.
the
over-shoot
pS
20
output
to lMHz. Adjust
position
),
).
position.
position.
(
a
Use
display.
that
that
that
and AC-GND-DC
the input.
50nVp-p
VR11l ( CHZ
50mV, lMHz ) of the
5AQ
the square-wave
is flat.
is +A.?,DIV.
is
+A.ZDIV.
signal.
)
ternaination
for a
-19-
Check/Adjust
t18l
Attenuation
Conpensation
(
ATT
+10,
+LgA
).
a.
Set
b.
Connect
terminals,
under the following settings.
ATT
+10 9.1 v 4.5
+ IAA 1V 5V
c. Adjust
(
ATT VOLTS,/DIV
+la 0.r v
+
Check,zAdjust
t19l
AC-GND-DC switch
the
the square-Hrave
check for a square-wave
VOLTS,/DIV
the
trimmer
top
flat
Lgg 1V
under
)
Input
to
generator
The square-wave
condenser for
following
the
The
generator
Capacity.
DC
the
to
that is fLat ( tlat top
CH1 ( CHz
generator
v
a
square-wave
settings.
square-wave
output
a.25 U ucra0
2.5
V vcr02
)
output
Adj ust
cHl
input
rcHz)
(
vc108
(
vc106
)
)
)
a,
Connect
b.
Check
c,
Adjust
the following settings.
ATT
the
L-C meter to the
the input capacity
the triruner
VOLTS,/DIV
+1 lA
+L0
0.t
+ lDb 1V
condensers
mV
v
for a
CH1
(
(
(
terninal.
pF
30
(
CHZ
vc109
vcr07
vc105
)
)
)
input capacity
)
input
for a approxinately
Adjust
vc103
vc101
-24-
30pF.
under
TRIGGERING
SYSTEM
Check,zAdj
tZgJ
a. Set
ust TRIG CENT.
TRIG
the
pull position,
switch to the
b.
Connect
a
0.3DIV ( SAKHz
c. Set the
d. Adjust
the sine-wave
TRIG LEVEL knob to the nidposition.
the
waveforn,
e. Next,
set the TRIG
that synchronization is effected. Aft,er confirnation, Ieave
the TRIG-SLOPE
out.
Check,zAdjust
tzt)
a. Set the VOLTS,/DIV
switch
switch to
knob to
b. Connect
CHz) for
Adjust CH2
c.
Next, adjust
d.
to
the
the sine wave
SOURCE switch to the
the
V0LTS,/DIV switch to 10mV and
pS.
20
generator
).
VR105
0.3DIV
so that synchronizaLton is
on
the
screen.
SLOPE
in the depressed
Trigger Balance
switch to
10uS,
VERT,
a five division
the
the
nid-position.
position
VR113
so
TRIGGER
V-M0DE swj.tch
generator
cntrol so
that
-
to
50mV
SOURCE
$1KHz)
both
the TRIG SLOPE
CH1,
to
the input connector for
effected on
(
push
state.
to the input
that
waveforns(CH1 and
: inner
state ) and insure
Readjust when
(CH1
and
CHD,
switch to INT, the INT
to
DUAL, and CH1
connectors
waveforn comes to
CH2
the
TIME,zDIV
the
TIME,zDIV
position
CH2)
knob
the
stepped
TRIG
(CH1
CH1.
coincides.
and
X-Y
l22l
122-l
122-21
Operati.on
Check,zAdjust
a. Set the V-MODE
[X-Y],
of
CHZ
b. Set the VOLTS,/DIV switch to
c. Connect the standard anplitude calibrator
connector.
d. Set the standard amplitude
e.
Check
f. Adjust the
within
Check,/Adjust X Position
a. Set the TIME,/DIV
the
the
b.
Check
i.s within
c. Adjust the
graticule
for a
horizontal POSITI0N
AC-GND-DC switch
to see
X Gain.
switch to
the AC-GND-DC switch
to
GND.
display
X
3%.
0.2
X
center.
adjustnent
GAIN
switch to the
that round spot
division
adjustnent
CENT
CH1, the TIME,TDIV
divisions.
of 5
Center.
control to
to GND.
against the
of CH1
the
calibrator for
to DC,
10nV. with X
VR108
is near
VR10? to
for a displ.ay
[X-Y],
the nidposition
the center
horizontal line.
switch
the
1 GAIN.
to the
a
50mV.
the
V-MODE switch
position
to
the
AC-GM-DC
CH1 input
of
graticule
spot
divisions
5
and
at
switch
to
the
CHl.
and
-2r-
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