Tektronix 585A Operator's Manual
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Contents
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reproduc~;~!~··~i"f.1"""(lm-~;:,<£.lf
of
the
copyright
owner.
Tektronix,
Inc.
Tektronix
International
A.G.
S.
W.
Millikan
Way
Terrassenweg
1A
P.
O.
Box
500
Zug,
Switzerland
Beaverton,
Oregon
PH.
042-49192
,.-'
Phone
MI
4-0161
Cable:
Tekintag,
Zug,
Cables:
Tektronix
Switzerland
070-427
464
CONTENTS
Controls and Connectors
..
0 0 • 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 • 0 0 0 ,
Oscilloscope/Plug-In Combinations 70 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Probe
Informat'ion 80 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 • 0 0 0 0 0 0 0 0 0 0 0 0 0
Triggering Information 1
0 0 0 0 0 0 0 0
••
0 0 0 0 0 0 0 0 0 0 0 0 0 0
••
0 • 0 ,
Single Sweep Operation
o.
20
0 0 0 0 • 0 0
••
0 • 0 • 0 0 0 0 0 • 0 0 0 0 0 0
Delay Operation
22
0 0
••
0
•••••
0 0 0 0 • 0 0 0 • 0 0 0 0 0 0 0 0 0 0 0 0
••
0
Miscellaneous Operations
24
0 0 0 0 0 0 0 0 0 0 0 0 0 0 • 0 0
.0
0 • 0 • 0 0 • 0
.
585A-l
DOG
ctr
CONTROLS
AND
CONNECTORS
Time-Base Controls
TRIGGERING
LEVEL
(A
and
B)
Determines the point on the triggering waveform
at
which
the sweep
will
start.
STABILITY
(A
and
B)
Adjusts the sweep
for
triggered
or
free running opera-
tion. Can generally be turned full left to
PRESET
for
trig-
gered' operation, except for a
few
extremely
difficult
trig-
gering applications. For free-running operation, STABILITY
control
is
turned full right.
TRIGGER
SLOPE
(A
and
B)
Determines whether triggering occurs during the rise
of
the triggering waveform
(+)
or
during the
fall
of
the trig-
geri
ng
waveform
(-).
TRIGGERING
SOURCE
(Time-Base
A)
Selects the triggering signal source - signal being dis-
played (INT AC, INT
AC
LF
REJECT,
or
INT
HF
SYNC),
power line signal (LINE),
or
signal coupled to TRIGGER
INPUT connector
(EXT
AC,
EXT
DC,
or
EXT
HF SYNC).
TRIGGERING
SOURCE
(Time-Base
B)
Selects the triggering signal source - signal being dis-
played (INT AC,
or
INT AC
LF
REJECT),
power line signal
{LINE},
or
the signal coupled to TRIGGER INPUT connector
(EXT
AC,
or
EXT
DC).
585A-l
1
e...
'.:.
TIME/CM (Time-Base
A)
Determines
sweep
rate
and
horizontal
size
of displayed
waveform. Calibrated
sweep
rates
are
obtained only
when
VARIABLE
control
is
fully
clockwise.
VARIABLE
(TIME/CM-Time-Base
A)
Provides
continuous
uncalibrated
sweep
rates
between
ranges
of TIME/CM
switch.
UNCALIBRATED
indicator lamp
lights
when
the
VARIABLE
control
is
turned
away
from
CALI-
BRATED
posi,tion.
TIME/CM
OR
DELAY
TIME
(Time-Base
B)
TIME/CM
OR
DELAY
TIME
switch
has
two
functions.
When
the
HORIZONTAL
DISPLAY
switch
is
in
the
B or
the
'B'
INTENSIFIED
BY
'A'
posi,tion,
the
switch
determines
sweep
rate
and
horizontal
size
of
the
displayed waveform.
When
the
HORIZONTAL
DISPLAY
switch
is
in
the
'A'
DLY'D
BY
'B'
position,
the
switch
determines
delay
time
along with
DELAY
TIME
MULTIPLIER
con'trol.
LENGTH
,
Adjusts
sweep
length of
TIME
BASE
B
between
approx-
imately 4
and
10
centimeters.
Turning
control counterclock-
wise
reduces
length of
sweep,
increases
duty cycle,
and
brightens display. Normally
LENGTH
control
is
set
fully
clockwise.
585A-'
2
Horizontal Controls
HORIZONTAL
DISPLAY
Determines
the
time
base
used
and
the
type of display
presented.
In
three
TIME
BASE
A positions, A
sweep
is
connect,ed
to horizontal ampli'fier input.
In
two
TIME
BASE
B positions, B
sweep
is
connected to horizontal amplifier
input.
In
the
two
EXT
positions,
an
externally derived
sweep
(applied
to
the
HORIZ
INPUT
connector)
is
connected
to
horizontal amplifier input.
In
X10
posH-ion
of HORIZONTAL
DISPLAY
switch, input signal
to
external horizontal ampli-
fier
is
attenuated
10
times.
In
IBI INTENSIFIED
BY
lA' position,
TIME
BASE
A
is
used
to brighten a portion of
TIME
BASE
B.
In
the
lA'
DLY'D
BY
'B'
position, brightened pori'ion,
as
seen
in
the
'B'
INTEN-
SIFIED
BY
'A' position,
is
expanded
the
full width of
the
screen.
In
'A' position only
TIME
BASE
A
is
used.
In
'B'
position only
TIME
BASE B is
used.
In
'A'
SINGLE
SWEEP
position,
the
RESET
button controls
the
start
o·f
a
single
sweep.
In
all positions of
the
HORIZONTAL
DISPLAY
switch,
except 'A'
and
'A'
SINGLE
SWEEP,
the
delayed trigger
is
controlled by
TIME
BASE
B.
The
time
base
selected
by
the
HORIZONTAL
DISPLAY
switch
is
indicated by
the
lights
above
the
DELAY-TIME
MULTIPLIER
control.
585A-
1
3
5X
MAGNIFIER
Expands
center
two-centimeter portion of displayed wave-
form
to full ten-centimeter width of graticule.
Expanded
portion
is
determined by setting of HORIZONTAL
POSI-
TION
switch.
Indi'cator lamp
is
lit
when
the
5X
MAGNIFIER
is
ON.
RESET
Prepares
sweep
circuits for reception of triggeri
ng
pulse
when
HORIZONTAL
DISPLAY
switch
is
in
lA'
SINGLE
SWEEP
position.
EXTERNAL
HORIZ
A
TTENUATOR
10-1
.
Con'trols
gain of external horizontal amplifier
In
con-
junction
with HORIZONTAL
DISPLAY
switch.
DELAY-TIME
MULTIPLIER
1-10
Ten-turn
control multiplies setting of either TIME/CM
switch
of
TIME
BASE
A,
or TIME/CM
OR
DELAY
TIME
switch
of
TIME
BASE
B.
This
determines
delay
time.
An
indicator lamp, located above
the
DELAY-TIME
MULTI-
PLIER,
will light designating
the
time
base
used,
accord-
Adjusts
horizontaI
posi'l"ion
of trace.
HORIZONTAL POSITION And
VERNIER
4
ing
to
the
setting of
'the
HORIZONTAL
DISPLAY
switch.
585A-l
Checking-Signal Source
AMPLITUDE
CALIBRATOR
Selects
anyone
of
eighteen square-wave output ampli-
tudes,
from
.2
MI
LLiVOLTS
to
100
VOLTS.
Crt Controls
SCALE
ILLUM
Controls brightness
of
graHcule markings.
ASTIGMATISM
Used
in
conjunction
with
FOCUS
con'trol
to
obtain sharp-
ly
focused trace.
INTENSITY
Adjusts
brightness
of
crt display.
FOCUS
Used
in
conjunction
with
ASTIGMATISM
control
to
focus
crt
display.
FOCUS
and
ASTIGMATISM
controls are adjust-
ed together
for
best trace definition.
Front-Panel Connectors
TRIGGER
INPUT
(A
and
B)
Connects external triggering signal to trigger circuitry.
TRIGGERING
SOURCE
switch
must
be pla·ced
in
one
of
EXT
positions.
585A-l
5
HORIZ
INPUT
Connects external signal to external horizontal amplifier.
HORIZONTAL
DISPLAY
switch
must
be
placed
in
one
of
EXT
positions to connect external horizontal amplifier to
horizontal ampl ifier
in
oscillos'cope.
DLY'D
TRIG
Connector supplies
a-
positive-going delayed trigger out-
put.
+
GATE
OUT
(A
and
B)
Supplies positive-going waveform with peak value
of
ap-
proximately
+30
volts. Start and duration.
of
+GATE
A
corresponds to start and duration
of
positive-going sawtooth
waveform available from SAWTOOTH A binding post.
SAWTOOTH A
Supplies a positive-going waveform with peak value
of
approximately +
150
volts. Start
of
waveform coincides
with start
of
lA' sweep.
Rate
at
which sawtooth
rises
is
de~
termined by setting
of
Time-Base
A TIME/CM switch.
CAL
OUT
Supplies 1-
square-wave
TOR
switch.
kc squ
signal
is
are
controlled
-wave output.
by
Peak-to-peak
AMPLITUDE
value
of
CALIBRA-
POWER
ON
Applies power to· the instrument.
585A-'
6
.\
Position Indicators
BEAM-POSITION INDICATORS
If
beam
is
positioned horizontally
or
vertically
away
from
center
of
graticule, either
on
or
off
screen, appropriate
beam-position indicator lamp lights.
Rear-Panel Connectors
EXTERNAL
CRT
CATHODE
EXTERNAL
CRT
CATHODE binding post should remain
jumpered
to
the
GND
binding post unless external signal
is
being fed
in
for
beam-intensity modulation.
OSCILLOSCOPE/PLUG-IN COMBINATIONS
Compatible
Plug-Ins
Any 80-Series numbered plug-in
will
fit the 580A-Series
oscilloscope di rectly. If it
is
desired to
use
one
of
the Letter-
Series
or
One-Series plug-ins, the Type
81
Adapter
Plug-in
must
also be
used
to
adapt
the sele'cted plug-in to the
05-
ci
Iloscope.
585A-l
7
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