Tektronix 585A User manual

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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 IB
I
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 amplifier
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 directly. 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

Oscilloscopel Plug-In Characteristics
=- PI u9 -IBn Type J===~B==a==n==d==p==a==s==s~===:========R==i==se====T==i==m==e========-
I de to 20 me 18 nsec
CA
de to 24 me
I
15 nsec
G de to
20 me
de to 15 me
de to 30 me
de to- 30 me
de to 20 me
de to 25 me
de to 95 me
I
\
I
\
I
I
I
18 nsec
23 nsec
12 nsec
12 nsec
17 nsec
14 nsec
3.9 nsec
H
K
L .
M
0
80
82
de to 85 me
4 nsec
86
de to 85 me
4nsec
PROBE INFORMATION
Probe Compensation
The following brief procedure describes probe co·mpensa-
tion for 'the P80, P6006, and P6008 probes. For more de-
tailed compensating procedures refer to the manual accom-
panying the probe.
8
585A-'
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