Tektronix 453A User manual

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
1 Ν ST
RU CT
I 0 Ν
'

ΜΑΝ
UAL
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Se
r ial Num ber
Te k tro n ix, Inc . 0

Ρ .
Ο
.
Box500

0

B eaverto n , Oregon 97005

"

Phone : [phone]

"

Cables : Te
k tronix
070-1089-00
171

.WARRANTY -
ΑΙΙ Tektronix J nstru
m e
n ts
are : warrante d agai n st .
d efective
m
aterials
and wo r k manship f
or one y ea r .
Any ' . q uestions

w
it
h
respect, to

t h e -
wa
r rant
y ,
m entio n e
d abo
v e,
sh o u l d - pe 'taken up wit h
yo u
r
Te k tronix Field'
Engineer or re p resentati v e .
All req u ests f or
repairq and
.
replacement parts
sh o u l d be directed to t he
Tektronix
F
ie
l
d Office or
r e p
resentati v
e
in Your area_ T h is
procedu r e will ass u re
you' the fastest possible
'service . Please include
the
i n str u ment Type ( π r
Par t Num b ery
and
Serial or
Model Num ber with all
requests for p a r ts or Se r
vice :
Specifications and
p rice cha n ge privileges reserved .
Copyright
© 1971 by Tek tronix,
Inc ., B ea ve r to n ,
Oregon .
P rinte d
in t h e U nite d
States of Am erica .
All
ri ghts reserved
. Contents of this
publication may not
be r e p r od
uced i n any form wit hout
permission of t h e
copyrig
h t owner
.
U .S .A .
:and foreig n
Tekt r on ix prod
ucts covere d
y U .S .
and fo r e i gn p atents,
and/or p atents p
ending .

ι
1

TA BLE
O F CO N T EN TS
S E CTIO N 1

453 Α / R 453A S PE CI F ICATIO N S

P age

S E CTIO N 2

O PER ATI N G I N ST RU CTIO N S (cont)
Introd uction

1-1

I n p ut
Co
u pli n g

2-17
Table 1-1 E lectrical

1-1

Deflectio n F
actor

2-17
V ertical Deflection Syste m 1-1

D u al-Trace
O p
eratio n
2-17
Triggeri n g ( Α a nd Β Sweep)

1-3

Channel
1 O u tpu t an d Cascade d
H orizontal Deflectio n System

1-4

O p eratio n 2-18
Calibrator

1-6

Algebraic A d ditio n 2-19
Ζ Axis Input

1-7

Trigger Source

2-19
O u t pu t Signals

1-7

Trigger
Co up li ng

2-20
Dis play

1-8

Trigger Slope

2-21
P ower S upp ly

1-8

Trigger L evel

2-21
Table 1-2 E nviro n mental C h aracteristics

1-9
H ig h - F re qu ency Sta b ility

2-21
Table 1-3 Ph ysical

1-9

Α Swee p Triggere d L ig h t

2-21
Sta nd ar d Accessories

1-10
Α Swee p M ode

2-21
Horizontal Sweep R ate

2-23
Swee p M ag n ificatio n
2-23
M ixed an d Delaye d Sweep

2-24
Χ - Υ Operation

2-27
S E CTIO N 2

O PER ATI N
G I
N
ST RU CTIO NS

Α an dΒ Gate

2-27
Intensity M
od ulatio n 2-27
Calibrator

2-27
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Ge n eral

2_1
F ront Cover

2_7

A pp
lications
Operati n g V oltage

2_1

Ge
n
eral

2-20
O p erating Temperat u re

2-2

P ea k to P ea k V oltage
O p er ati ng P ositio n
2-2

M eas u reme n ts-AC

2-28
R ac
k mo un ti ng

2-2

I n stantaneo u s V oltage
Co n trols
an d Conn ectors

2-3

M easu rements-DC

2-29
First-Time
O p eration

2-7

Comparison M eas u reme n ts

2-30
Test
Set-up C
h
art

2-11

Time-D u ratio n M eas u reme n ts

2-31
General O p erati ng
Informatio n
Determining F re quen cy

2-32
Si mp lifie d
O p
erati
ng I n formation

2-11

R isetime M easu reme n ts

2-32
I ntensity Control

2-14

Time-Differe n ce M eas u rements

2-33
Astigmatism A d ju stme nt

2-14

Delaye d Swee p Time M easurements

2-34
Graticule

2-14

Delaye d Swee p M agnificatio n 2-35
Trace Alignme nt A dju
stment

2-15
L ig ht F ilter

2_15 Displaye
d Com
p
lex Sig
n
als
B eam F i n d er

2-15

U si
n g
Delaye d Swee p 2-36
V ertical
C
ha nn
el Selectio n
2-15

Pulse
J
itter M eas u rements

2-37
V ertical
Gai
n
A d ju stme n t

2-15

Delaye d Trigger Generator

2-38
Ste p Atte nu
ator B alance

2-16
N ormal Trigger Generator

2-39
Signal Co n
nections

2-16

Mu
lti-Trace
Ph ase Differe n ce
L oa d i n gEffect of t
h e

M easureme n
ts

2-39
Type 453 Α / R
453A

2-16

H ig h R esol u tio n
Ph ase M eas u rements

2-40
Coaxial Ca b le Consi
d erations

2-16

Χ - Υ Ph ase M easu reme n
ts

2-40
Ground Consideratio
ns

2-17

Co m mo n - M odeRe j ectio n
2-42

CO N T EN
TS (co n t)
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S E CTIO N 3 CI RC U IT D E SC R I P TIO N

S E CTIO N 5 CA L I BR ATIO N
I n trod u ction

3-1

Intro du ction

5-1
Block Diag r a m 3-1

Te k tro n ix Fiel d Service

5-1
Circ u it O p eration

3-3

U si n g T h is Proce du re

5-1
C h a nn el 1 V ertical P reamp

3-4

Test Eq u ipme n t R e qu ire d 5-1
C h an n el 2 Vertical P reamp 3-6

P relimi n ary Control Settings

5-3
V ertical Switc h ing

3-7

P
art 1-P e r forma n ce C
h
ec
k
V ertical O u t p ut Am p
lifier

3-9

Intro d
u ctio n 5-4
Trigger P rea mp 3-10

In d
ex to Part Ι - P erforma n ce C h ec k 5-4
Α
Trigger
Generator

3-12
Α Swee p Generato r 3-16

P relimi n ary Proce du re for
P erformance C h ec k 5-5
Β Trigge r Ge n erator

3-19
Β Sweep
Generator

3-21

Part I[-Adjustment
Horizo n tal Am p lifier

3-23

Intro d u ction

5-26

'
2 Axis Amplifier

3-2 ς

Ind ex to P art II-Adjustment

5-26
C R T Circ u it

3-27

P
reliminary
P roced
ure for
L ow- V oltage P ower S u pp ly

3-28

Ad ju stme n t

5-26
Voltage Distrib u tio n 3-31
Calibrator

3-31
S E CTIO N 6 RAC
KM
O
UN TI NG
S E CTIO N 4 M AI NT EN A N C E
I n tro du ction

6-1
I n str u me n t Di m ensio n s

6-1
I n tro du ctio n
4-1

R ac k Di m en sio n s

6-1
Cover R emoval

4-1

Sli d e-O u t Track s

6-1
M o u nti ng P roce d u re

6-1
Preventive M aintenance

Alter n ative R ear M oun ti ng M et hods

6-2
General

4-1

R emovi n g or I n stalling t h e I n str um en t

6-3
Sli d e-O u t Trac k Lub ricatio n 6-3
Cleaning

4-1
Lu brication

4-2
Visual Ins p ection

4-2
Tra n sistor C h ec k s

4-2

S E CTIO N 7

ELE CT R ICA L P A R TS L IST
R ecali b ration

4-2

-
A b breviatio
ns a n
d Sy
m
bols
Tro
u
bles
h ooting

P
arts Or d
eri ng
I
n for m atio n
Intro
du ction

4-2

I n dex of Electrical P arts
L ist
Trou bles h ooti n g Ai d s

4-2

Electrical Parts L ist
Tro ub les
h
ooting Equ i p ment

4-4
Trou b les
h
ooting Tec hn iq u es

4-4
Corrective M ai n te n a n ce

S E CTIO N 8

DIAG RA M S A N D CI RC U IT B OA
RD
Ge n eral

4-7

ILLUSTRATIONS
O b tai n ing R eplacement Parts

4-7
Sol d ering Tec h ni q u es

4-7

Sym b ols a nd R eference Desig
n ators

8-1
Com p o n e n t R ep lacement

4-10

Voltage a n d W avefor m Test Con d
itio n s

8-2
R ecalibratio n After R epair

4-13

Diagrams
I n str um ent R epack agi n g

4-13

Circ u it Board
Ill u strations
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S
E CTIO N
9

ME CH A NICA L P A R TS L IST

CH A N G E
INF O RM ATIO N
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CO N T EN TS (co n t)
453 Α / R 453A
M ec
ha n
ical P arts L ist I n formation

A bb reviations
an d symbols u se d in t h is man u al are b ase d on or
Index of M ec h anical P arts L ist
ta ken d irectly from IEEE
Sta nd ar d 260 "Sta n d ar d Sym b ols for
an d Ill u stratio n s

Un its",
MIL-STD-12B a n d ot h er sta nd ar d s of t h e electronics
i ndu stry .
C
h
ange i n for m atio n , if any, is locate d at t h e rear of
M ec h a n ical P arts L
ist

t h is ma n ual .

453 Α / R 453A
F ig . 1-1 . Top ; t he 453 Α
Oscillosco p e .
B
ottom ; t h e R 453A Oscillosco p e .

S
E
CTIO
N l
453AIR4S3A SPECIFICATION
C hange information, if any, affecting this
section will
be
found
at the
rear of
this manual
.
453 Α / R 453A
Intro
d
uct
i
on

switc h set to Χ -Y) . T h e regulate d DC p ower su pp lies main-
T h e Te k tronix 453 Α Oscillosco pe is α transistorized

tain constant out put over α wi de variation of line voltages
p ortable oscillosco p edesignedto o p erate in α wide range of

and
fre quencies . Total p ower consum p tion of t h e instru-
environmental con d itions . T he
lig h
t weig h
t
of
t he 453 Α

ment
is app roximately
90 watts .
allows it to be easily trans
p
orte
d , w h ile p rovi d ing t h e per-
formance necessary for accurate h
ig h -fre q uency meas u re
ments . T he du al-c hannel DC-to-60 MH z vertical system pro-

Informatio n give n i n t h is instruction manual ap p lies to
vides cali b rate d d eflection factors from 5 millivolts to 10

the
R453A also
unless ot
herwise
noted . T he R453A is
volts/ d ivision . C hannels 1 and 2 can be cascadedusing an

electrically identical to t h e 453 Α , but is mec h anically
external cable to provide α one millivolt minimum deflec-

ada p ted for mounting in α stan d ar d 19-inc h rac k . Rac k -
tion factor (
both VO L
TS/DI
V switc h es set to 5 mV ) .

Mounting i n structions and α d imensional d rawing for t he
R453A are p rovi ded in Section 6 of t h is man u al .
T he trigger circuits p rovi
de stable triggering over t h e full
range of vertical fre q uency res p onse . Se parate trigger con-
trols are provi de d to select t h e desired triggeri ng for t h e Α
and Β sweeps . One of t h ree sweep modes can be selecte d

T
h is instrument will meet
t
he
electrical c h aracteristics
for t h e Α swee p ; automatic, normal, or si n gle swee p . T h e

liste d in Table 1-1 following com p lete calibration as given
horizon tal swee p p rovides α maximum swee p rate of 0 .1

in Section 5 . T he p erformance c heck procedure i n Section
microseco
n
d/division (10 nan oseconds/ d ivisio
n
usi n g 10 Χ

5p rovides α convenient met hodof check ing instrument
magnifier) along with α d elaye d sweep feat u re for accurate

p erforma nce with out ma k i n g inter n al c heck s or ad j ust-
relative-time measurements . Accurate
Χ -
Υ
measurements

ments . T he following electrical c h aracteristics apply over α
can be ma d e with C hannel 2 p rovi d ing t he vertical deflec-

calibration interval of 1000 hou rs andan am b ient temper-
tion, and C hannel 1 provi d ing t h e horizon tal d eflection

ature range of 0° C to +50 °C, exce p t as oth erwise in d icated .
( ΙΝΤT R IG switc h set to CH 1 O R Χ -Y, H O R IZ DIS PL AY

Warm up time for given
accuracy is 20
minutes
.
Deflection Factor
Deflection Accuracy
Variab le Deflection Factor

Ι Continuo u sly varia b le b etwee n cali- Ι E
xten
d s
maximum d eflection factor to
b rate d settings .

at least 25 volts/ d ivision .
TA BLE
1-1
ELE CT RICA L
C h aracteristic

P erformance Req uirement

Su p
plemental Information
VER TICA L D EFLE CTIO N
SYST EM
5 millivolts/ d ivision to
10 volts/ d ivi-

Selected by V O L TS/DI V switch .
sion in 11 cali b rate d ste p s for each Ste p s in 1-2-5 se
quence .
c h annel . L ess t h an one millivolt/ d ivi-
sion
w
h en C hannel 1 and2 are cas-
cad e d .
Wit h in 3% of in d icate d d eflection . Wit
h GAIN correctly ad j usted at 20
Casca ded
deflectio n factor u ncali- m V and VA R VO L
TS/DI
V
control set
b rate d .

to cali b rate d .

Specification-453
Α / R453A
10 mV/DIV
5 mV/DIV
Without probe
Ca pacitance
Cha r acteristic
B a n d wi d t hat -3 dB p oints (with
or
without Ρ 6061 Probe)
20 mV to 10 VOLTS/DIV
Channels 1 an d2 cascaded
AC L ow-Fre q uency Response (lower
-3 dB point)
With Ρ 6061 P robe
In p ut RC Characteristics
Resistance
M aximum Safe In put Voltage
In put Cou p ling
M
o d es
Vertical Disp lay M od es
Cho pp e d Re p etition Rate
Am p
lifier Crosstalk
CommonM ode Rejection
Ratio
(all deflection factors)
Polarity Inversion
Signal
Delay L ine
DC to at least 60 megahertz
DC to at least 50 megahertz
DC to at least 40 megahertz
DC to at least 25 megahertz
1
.6
h ertz or less at
all
d
eflection
factors .
0 .16 h ertz or less at all d eflection
factors .
AC
or
DC
.
TA BLE 1-1 (cont)
P erformance R equirement
Channel 1 only .
Channel 2 only .
Dual-trace, alternate between channels .
Dual-trace, cho pp e d b etween channels .
A dded algebraically .
A pp roximately 500 kilohertz .
100 :1 or greater, DC to 20 megahertz .
At least 20 :1 DC to one kilohertz for
signals less than eight times the
VOLTS/DIV switch setting .
Dis p laye
d signal from Channel 2 can
b
e
inverted .
Permits viewing of lea d ing e dge of
triggering signal (internal triggering
only) .
Su pp lemental
Information
Driven from 25-o
h m source . V A R
V OLTS/DIV control
set to calibrated
p osition .
In p ut Cou p ling switch set to AC .
One megohm ±2%
A pp roximately 20 p
icofara d
s
600 volts DC
+p
eak AC (one kilohertz
or less) .
Selected
by In
p ut
Coupling switch .

Sou rce
Co u p ling
P olarity
Internal Trigger
Sensitivity
AC
LF REJ
H FREJ
DC
E xternal Trigger Sensitivity
AC
LF REJ
HF REJ
DC
C h aracteristic
TA BLE 1-1 (cont)
P erformance R e q uirement

Sup p lemental Information
T R IGG ER I N G ( Α A N D Β S
WEEP)
Internal from d is p laye d channel or

Selecte d by SO UR C
E
switc h .
from C h annel 1 only .
Internal from AC p ower source .
E xternal .
E xternal d ivi
d
eby
10 .
AC
AC low-frequency re j ect
AC h ig h -fre q u ency re j ect
DC
Swee p ca n be triggered from p ositive-

Selecte d by SLO PE switc h
going or negative-going portion of
trigger signal .
0 .3
d ivision of d eflection, minimum,
30 h ertz to 10 mega h ertz ; increasing
to 1 .5 d ivision at 60mega
h ertz .
0 .3
d ivision of d eflection, minim u m,
30 kilo h ertz to 10 mega h ertz ; in-
creasing to 1 .5 division at 60 mega-
h ertz .
0 .3 d ivision of d eflection, minimum,
30 h ertz to 50 kilo h ertz .
0 .3 d ivision of d eflection, minimum,
DC to 10 mega h ertz ; increasing to
1 .5
d ivision at 60mega
h
ertz .
50 millivolts, minimum, 30 h ertz to 10

SO UR C E switc h set to EXT . Triggering
mega h ertz ; increasing to 200 millivolts

signal

re qu irements increase d 10 times
at 60 mega h ertz .

for ΕΧΤ
-
10 p osition .
50 millivolts, minimum,30 kilo h ertz
to 10 mega h ertz ; increasing to 200
millivolts
at 60 mega
h
ertz
.
50 millivolts, minimum,30 hertz to
50 kilo h ertz .
50 millivolts, minimum, DC to 10
mega h ertz ; increasing to 200
millivolts
at 60mega
h
ertz
.
Specification-453 Α / R 453A
Selecte d by
CO
UPL I NG switch .