Tektronix DC503a User manual

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7~Ictronbc

INSTRUCTION

MANUAL

Tektronix,

Inc

Box

500

Beaverton,

Oregon



97077



Serial

Number

COMMITTED

TOEXCELLENCE

PLEASE

CHECK

FOR

CHANGE

INFORMATION

THE

REAR

THIS

MANUAL

50~A

UNIVERSAL

COUNTER/TAMER

With

Options

070-2971-00



First

Printing

JUN

1980

Product

Group



Revised

DEC

1981

1980

Tektronix,

Inc

All

rights

reserved



1980

durch

Tektronix,

Inc

Alle

Rechte

vorbe-

Contents

of this

publication

may

not be

reproduced

any



halten

Der

Inhalt

dieser

Publikation

dart

ohne

Genehmigung

form

without the

written

permission

Tektronix,

Inc



von

Tektronix,

Inc

nicht

weitergegeben

werden

Products

Tektronix,

Inc

and

its

subsidiaries

are

covered



Produkte

von

Tektronix,

Inc

and

seinen

Tochtergesellschaften

and

foreign

patents

and/or

pending

patents



sind

durch

US-and

Auslandspatente

and/oder

schwebende

Patente

abgedeckt

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TEK,

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and



are

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istered

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Inc



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TEK,

SCOPE-MOBILE

and

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Tektronix,

Inc

Printed

Specification

and

price

change

privileges

are reserved



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

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and

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Preis~nderungen

bleiben

vorbehalten

1980

TEKTRONIX

INC

Tous

droits

r~serv~s

Le contenu de

manuel

peut

~tre

reproduit

sous

quelque

for-

que

soit

sans

I'accord

Tektronix

Inc

Tous

les

produits

TEKTRONIX

sont

brevets

Etranger

les

logotypes

TEKTRONIX,

TEK

SCOPE

MOBILE,

sont

d~pos~s

1980

~KTR~~PjT~T

~~f,~

Ta~~~~

TEKTRONIX,

TEK,

SCOPE-MOBILE,

ItT7

o=7~~f~sS~~~

z~a

Imprim~

aux

USA

TEKTRONIX

reserve

droit

modifier



*(~

~~]~I)



1f~']<j'Z

iJ1f~~~13

~~~~f~

pract~ristiques

prix

daps

cadre

d~veloppements

techno-

logiques



LIST

OFTABLES

. .

..................,

OPERATOR'S

SAFETY

SUMMARY

...........

vii

SERVICE

SAFETY

SUMMARY

...............

viii

TABLE

CONTENTS

Section

SPECIFICATION

...........

...

1-1

Instrument

Description

......

1-1

Instrument

Options

...........



1-1

Standard

Accessories

..........

1-1

Performance

Conditions

........

1-1

Electrical

Characteristics

........



1-2

Miscellaneous

...............

1-7

Environmental

...............

1-7

Physical

Characteristics

........

1-8

OPERATORS

PART-ENGLISH

Introduction

.................

2-1

Installation

and

Removal

........

2-1

Controls

and

Connectors

.........

2-2

Display

and

Unit

Indicators

......

2-2

Mode

Selection

and

Control

Functions

.........

2-2

Channel

Input

and

Level

Functions

2-4

Input

Considerations

......



2-4

Input

Sources

....

.......

...

2-4

Input

Coupling

......

.........

2-4

Attenuators

and

Maximum

Input

Volts

...............

.......

2-4

Sensitivity

and

Frequency

Range

. .

2-4

Slope

and

Level

.............

2-4

Operators

Familiarization

........

2-5

Preparation

.................

2-5

Display

Tests

................

2-5

Readout

Segment

Test

.......

2-5

Frequency

Displays

........



2-5

Period

Width

andTimeA

Displays

..........

.......

2-5

503A

LIST

ILLUSTRATIONS

.................



Section 2



OPERATING

INSTRUCTIONS

(cont)

Events

During

and

Ratio

A/B

Displays

...........

......

2-6

Time

Manual

Displays

. .

....



2-6

Totalize

Display

......

....

2-6

Channel

Slope

.........

. .

2-7

Channel

Slope

...........

2-7

Operating

Modes

.............

2-7

General

...........

.........

2-7

Frequency

Mode

....

.......

2-7

Period

Modes

.........

......

2-8

Time

Interval

Modes

.......

....

2-8

Events

During

Mode

.....

...

2-10

Ratio

Mode

..........

......

2-10

Time

Manual

Mode

.......

.....

2-11

Totalize

Mode

..........

....

2-12

Repackaging

for

Shipment

......

. .

2-12

Section 2

OPERATING

INSTRUCTIONS

...

2-1



OPERATORS

PART-FRENCH

Chapitre

INSTRUCTION

D'UTILISATION

ntroduction



2-1

Installation

et retrait



.....



2-1

Commande~

prises



....

.....

2-2

Indicateurs d'affichage

d'unites



. .



2-2

Selection

mode

d'utilisation

roles

des

commander



.......



2-2

Entree

vole

fonctions

niveau

...............

2-4

Description

des

entrees



........



2-4

Sources

.................

2-4

Couplage

................

2-4

Attenuateurs

tensions d'entree

maximales

..............

2-4

Sensibilite

plage

fr~quence

. .



2-4

Pente

niveau

declenchement



2-4

Familiarisation

I'utilisateur

avec

I'appareil



...........

.....

2-5

Mire

service



.........

...



2-5

Tests

I'affichage



......

....



2-5

Test

des

segments

1'affichage



2-5

Affichage

mesure de

fr~quence



...

.....

. .



2-5

Affichage

des mesures

p~-

riode

largeur

temps



.....



2-6

503A

TABLE

CONTENTS

(cont)

Chapitre 2



INSTRUCTION

D'UTILISATION

(cont)



Kaptiel



BEDIENUNGSANLEITUNG

(cont)

Affichage

du nombre

d'~v~ne

ments

presents

sur

durant

rapport

A/B



......



2-6

Affichage

mesure

manuelle

temps



........

. .



2-6

Affichage

mesure

tota-

lisation

(TOTALIZE

. .



2-6

Pente de

vole

......

....



2-7

Pente de

vole



...

....



2-7

Modes

d'utilisation



.......

. .



2-7

G~n~ralit~s

.....

. .

...

. .

....

2-7

Mode

«Mesure

de fr~quence»

signal

voie



.....



2-7

Mesure de

p~riode



.....



2-8

Mode

«Mesure

d'intervalle

temps»

...

. .

......

2-8

Mode

«Mesure

des

:venements

durant

B»



..............

2-10

Mode

«Mesure

rapport»



....

2-11

Mode

«Mesure

temps

manuelle»

2-12

Mode

«Mesure

totalisation

A»

2-12

Instructions

r~emballage

pour

expedition

..........

....

2-12

OPERATORS

PART-GERMAN

Kapitel2

BEDIENUNGSANLEITUNG

Seite

Einfiihrung

......

.....

.2-1

Installation

and

Auswechseln

....

. .

2-1

Bedienungselemente

and

Stecker

. .

2-2

Darstellung

and

der

Einheiten

...

.....

...... ...

2-2

Wahl

der

Betriebsarten

and

Steuerfunktionen

.. ......

...

2-2

Eingang

Kanal

and

Pegelfunktionen

.....

. .

....

2-4

Signaleingang

.... .....: ......

....

2-4

Eingangsquellen

...

. .

....

.....

.2-4

Eingangskoppelung

...

....

. .

....

.2-4

Teiler

and

max

Eingangsspannungen

.....

.2-4

Empfindlichkeit

and

Frequenzbereich

......

...... .

.2-4

Flanke

and

Pegel

...... ....... ..

.2-4

Einfiihrung

die

Bedienung

...... ...

2-5

Vorbereitung

... ......

.....

. .

.2-5

Uberpriifung

der

....

2-5

lJberpriifung

der

LED-Segmente

. .

......

....

.2-5

Frequenz-Darstellungen

......

2-5

Periodendauer

Pulsbreite

and

Zeit

Darstellungen

...

2-5

Ereignisse

w~hrend

and

Verhilltnis

A/B

Darstellungen

. .

2-6

Manuelle

Zeitdarstellung

....

.2-6

Darstellung

SummeA

......

. .

2-6

Flanke

Kanal

...... ......

...

2-7

Flanke

Kanal

...... ......

...

2-7

Betriebsarten

...

.....

. .

...

.2-7

Allgemeines

. .

...... ......

...

.2-7

Frequenz

A-Betrieb

. .

....

. .

......

2-7

Periodendauermessungen

.....

.2-8

Zeitintervallmessungen

...

......

.2-8

Ereignisse

w~hrend

. .

......

2-10

Verh~ltnismessung

.....

......

.2-10

Manuelle

Zeitmessungen

......

. .

2-11

Summierung

.. ....... ....... ..

2-12

Verpackung

des

Ger~tes

...

...... ..

2-12

OPERATORS

PART-JAPANESE



~#&1t~~

....

.....

.......

..........

....

...

dt~

~......

.............

..... .....

....

........

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. . . . . . .

......

..... .

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~. . . . . . . . . . . . .

......

....

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i~~11~%T

. . . . . . . . . . . . ....

......

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Fib#R

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.~E~~-

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~-i

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....

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.............

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...........

rT~-5'

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.....

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...............

..................

#!~1'~t_~~~z~

......

.....

..................

TABLE

CONTENTS

(cont)

Page

#'fll~I~

.....

........................

.......

~zT

.....

....

. .

........................

.......

~J-FT'7

t~l'><i

....

......

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Jal>~~A

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. .

....

.....

. . ...........

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.........

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......

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........................

.....

~A~at

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.....

....

...................

.......

.....

[]

..................

.....

#~'h1=

.....

....

............

.....

.......



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.....

......

...........

.....

.......

. . .

ifs



......

..........

.....

.............



Ie7~B~-F

............

..................

......

.2_g

y-(L,

-(i9-iC11

.............

.....

B~ARA~~-f~iFA~-F

.............

.....

.p_10

A/B~--F

....

.....

.........................

.....

.p_10

f~~a7~-sTll

~-F

.................

......

.p-~I

~1A~~t

;GJt~-

............

..................

.... . . .

~`z?

75>~~

....

......

.....

..................

.....

...... .

WARNING

THE

FOLLOWING

SERVICING

INSTRUCTIONS

AREFOR

USE

BYQUALIFIED

PERSONNEL

ONLY

AVOIDPERSONAL

INJURY,

NOT

PER-

FORMANYSERVICING

OTHER

THAN

THATCON-

TAINED

OPERATING

INSTRUCTIONS

UNLESS

YOU

ARE

QUALIFIEDTO

DOSO

Section



THEORY

OPERATION



........



3-1

BLOCK

DIAGRAM

DESCRIPTION

...

3-1

Introduction

................

3-1

Channel

and

Amplifiers

.....

3-1

FREQUENCY

(Variable

Gate)

...

3-1

PERIOD

(Variable

Clock)

......

3-1

PERIOD

(Averageable

100

Clock)

...............

. .

....

3-1

WIDTH

(Variable

Clock)



. .

3-1

WIDTH

(Averageable

100



Clock)

.................

....

3-1

Section



THEORY

OPERATION

(cont)

503A

Page

TIME

(Variable

Clock)

....



3-2

TIME

(Averageable

100

Clock)

. .

...................

3-2

EVENTS

DURING

(Averageable) 3-2

RATIO

A/B

(Averageable)

.......

3-2

TOTALIZE

................

3-2

TIME

MANUAL

(Variable

Clock)

. .

3-2

Decade

Accumulators,

6_Decade

Counter/8-Decade

Latch

...

.....

3-2

Measurement

Cycle

Timing

......

3-2

Decimal

Point

and

Annunicator

Encoder

....

. .

... .....

. .

3-2

Time

Base

.......

.........

3-3

Power

Supplies

.......

3-3

DETAILEDCIRCUIT

DESCRIPTION

Introduction

.............

....

3-3

and

Amplifiers



.......

. .

3-3

Introduction

Signal

Routing

......



.....

3-4

Time

Generator



...



3-4

Signal

Routin

and

Gate

Generator

. .

..........

3-4

Circuit



......



3-7

Measurement

Cycle Timin



3-8

Decade

Accumulators



3-9

ipple

Through

....

.......

...

3-9

Decimal

Poi

and

Annunciator

Encoder

..........

....

3-10

Display



..........

....

3-10

Switching

Logic

(FUNCTION,

AVGS/TIMING)

......

. .

3-10

Time

Base



.........

3-11

Power

Supplies



........

3-11

6-Decade

Counter

Section 4

CALIBRATION

............

.....

4-1

Performance

Check

Procedure

....

4-1

Introduction

. .

....

........

. .

4-1

Calibration

Interval

.......

.....

4-1

Services

Available

.......

.....

4-1

Test

Equipment

Required

...

....

4-1

Time

Base

Checks

........

....

4-3

503A

TABLE

CONTENTS

(cont)

Page



Page

Section 4

CALIBRATION

(cont)



Section 5

MAINTENANCE

(cont)

and

Checks

.....

...

4-3



Circuit

Board

Removal

........

5-5

Minimum

Pulse

Width

Checks

. .



4-7



Switch

Maintenance

......

....



5-5

Two

Channel

Function

Checks

...

4-10



Front Panel

Latch

Removal

. .

...

5-5

Trigger

Level

Checks

..........

4-11



Rear

Interface

Information

.....

...

5-6

Rear

Interface

Checks

.........

4-13



Functions

Available

Rear

Adjustment

Procedure

..........

4-15



Connector

..................

5-6

Introduction

....

..........

4-15

Test

Equipment

Required

.......

4-15



Section

OPTIONS

Preparation

........

...

.....

4-15



OPtion

................

6-1

Section

MAINTENANCE

............

. .

5-1

General

Maintenance

Information

. . .

5-1

Static-Sensitive

Components

.....

5-1

Cleaning

...................

5-1

Obtaining

Replacement

Parts

....

5-2

Soldering

Techniques

..........

5-2

Semiconductors

..............

5-3

Interconnecting

Pins

. .

.........

5-3

Square

Assemblies

.......

5-3

Circuit

Board

Pins

and

Ferrules

...

5-3

Dual Entry

Circuit

Board

Sockets

5-4

Bottom

Entry

Circuit

Board

Sockets

............

........

5-4

Multipin

Connectors

.......

....

5-4

Section 7

REPLACEABLE

ELECTRICAL

PARTS



7-1

Section 8

DIAGRAMS

AND

ILLUSTRATIONS

Block

Diagram

Adjustment

Locations

Schematic

Diagrams

Component

Reference

Charts

(Grid

Locators)

Section

REPLACEABLE

MECHANICAL

PARTS

9-1

FIG

EXPLODED

VIEW

ACCESSORIES

CHANGE

INFORMATION

LIST

ILLUSTRATIONS

503A

Fig



Fig



Page



Page

2-1



Plug-in

installation/removal

......

....

2-1



5-1



Typical

square

assembly

. .

.....

5-3

2-2



Controls

and

connectors

..........

. .



2-3



5-2



Exploded view

circuit

board

and

2-3



Triggering

circuitresponsetoimproper(A)



ferrule

..................

......



5-3

and

proper

(B)

level

settings

........



2-5



5-3



Dual

entry

circuit

board

pin socket

....

5-4

2-4



Representation

interval

measurements



2-9



5-4



Bottom

entry

circuit

board

socket



. .

5-4

2-5



Typical

and

Level

Out

voltage



5-5



Orientation

and

disassembly

multipin

settings

for

various

time

interval



connectors



.........

.......

.....



5-4

measurements

..................

2-10 5-6



Rear

frame

removal



.....

......

....



5-5

2-6



Illustration

events

counted

from

portion

signal

pulses during

the



5-7



Circuit

board

removal

.......

...

. .

5-5

counter

gate

open

time

(controlled

by the



5-8



Pushbutton

switch

removal

...

.....



5-5

signal)

..................

2-11



5-9



Rear

interface

connector

assignments

. .

5-7

5-10



Rear

interface

timing

for

display

3-1



Typical

503A

timing

diagram

......



3-5



1079

.0674

....

................



5-8

4-1



Check

set-up

for

the high

frequency

sensitivity

using X1

and

attenuation

. .

4-4

4-2



Check

set-up

for

lowfrequency

and

sensitivity

......

...........

4-6

4-3



Check

set-up

for

minimum

pulse

width

signals

....

........

............

4-8

4-4



Check

set-up

for

two

channel

functions



4-10

4-5



Check

set-up

for

trigger

level

range

(±3

and

accuracy(±20

±0

.5%

reading)

4-12

NOTE

The

following

illustrations

are

found

the

foldout

pages

the

rear

this

manual

8-1



Main

Board

(A15

Assy)

Adjustment

Locations

8-2



Auxiliary

Board

(A12

Assy)

Adjustment

Locations

8-3



Auxiliary

Board

(A12

Assy)

Parts

Location

8-4



Main

Board

(A14

Assy)

Parts

Location

LIST

TABLES

Table



Page

1-1



Electrical

Characteristics

........

....



1-2



Miscellaneous

..................

1-7

1-3



Environmental

...................

7-7

1-4



Physical

Characteristics

............

1-8

2-1



Frequency

Display

Check

.........

2-5

2-2



Period

Time

Width

(Timing

Mode)

Display

Check

............

2-6

2-3



Period

Time

Width

(Averaging

Mode)

Display

Check

. . . .

.......

2-6

2-4



Ratio

A/B

and

Events

During

Display

Check

..................

. .

.....

2-6

2-5



Gate

Time

Measurement

Resolution



2-8

3-1



PROM

Selection

Code

............

3-10

4-1



List of

Test

Equipment

Requirements

...

4-2

5-1



Relative

Susceptibility to

Static

Discharge

Damage

...

..................

5-1

NOTE

The

following

fables

are

found

the

foldoui

pages

the

rear of

this

manual

8-1

thru



Component

Reference

Charts

(Grid

8-10

Locators)

The

general

safety

information

this part

the

summary



250

volts

rms

between

the

supply

conductors

between

for

both

operating

and

servicing

personnel

Specific



either

supply

conductor

and ground

protective

ground

warnings

and

cautions

will

found

throughout

the



connection

way

the

groundingconductor

the

manual

where

they

apply,

but

may

not

appear

this



power

cord

essential

for

safe

operation

summary

This

Manual

OPERATORS

SAFETY

SUMMARY

TERMS

CAUTION

statements

identify

conditions

practices

that

could

result

damagetothe

equipment

other

property

WARNING

statements

identify

conditions

practices

that

could

result

personal

injury or

loss

life

Marked

Equipment

CAUTION

indicates

personal

injury

hazard

not

im-

mediately

accessible

one

reads

the

marking,

hazard

property

including

the

equipment

itself

DANGER

indicates

personal

injury

hazard

immediately

accessible

one

reads

the

marking

SYMBOLS

Marked

Equipment

DANGER

High

voltage

Protective

ground

(earth)

terminal

ATTENTION

refer

manual

Grounding

the

Product

This

product

grounded

through

the

grounding

conduc-

tor

the

power

module

power

cord

avoid

electrical

shock,

plug

the

power

cord

into

properly

wired

recep-

tacle

before

connecting

to the

product

input

output

terminals

protective

ground

connection

way

the

groundingconductor

the

power

module

power

cord

essential

for

safe

operation

Danger

Arising

From

Loss

Ground

Upon

loss

the

protective-ground

connection,

all

accessible

conductive

parts

(including

knobs

and

con-

trols

that

may

appear

insulating)

can

render an

electric

shock

Use

the

Proper

Fuse

This

Manual



avoid

fire

hazard,

use

only the

fuse

correct

type,

voltage

rating

and

current

rating as

specified

the

parts

This

symbol



indicates

where

applicable



list

for

your

product



cautionary

other

information

found



Refer

fuse

replacement

qualified

service

personnel

Not

Operate

Explosive

Atmospheres

503A

avoid

explosion,

not

operate

this

product

explosive

atmosphere

unless

has

been

specifically

certified

for

such

operation

Not

Operate

Without

Covers

Power

Source

avoid

personal

injury,

not

operate

this

product

This

product

intended

operate

from

power

module



without covers

panels

installed

not

apply

power

connected

power

source

that

will

not

apply

morethan



the

plug-in

via

plug-in

extender

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