Tektronix 067-1002-99 User manual

Tektronix,

Inc.

P.O. Box 500

Beaverton, Oregon 97077

MANUAL

PART NO.

061-2393-00

COMMITTED

EXCELLENCE

067-1002-99

POWER SUPPLY

CALIBRATION

FIXTURE

(for

Universal Load

Unit)

INSTRUCTION MANUAL

First Printing FEB 1981

Contents of this publication may not be reproduced in any

form without permission of Tektronix, Inc.

This instrument,

whole or

part, may

protected by one

or more

U.S.

or foreign patents or patent applications.

Information provided

request by Tektronix, Inc.,

P.O.

Box

500, Beaverton, Oregon 97077.

TEKTRONIX is a registered trademark of Tektronix, Inc.

MANUAL REVISION STATUS

PRODUCT:

067-1002-99

Calibration

Fixture

This manual supports the following versions of this product:

067-1002-99

REV. DATE DESCRIPTION

@ FEB 1981 Original Issue

067-1002-99

FIXTURE

Section

CONTENTS

Page

INTRODUCTION

About

This

Manual

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

1-1

Description

the

Module

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

1-2

SPECIFICATIONS

Physical

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

2-1

Electrical

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

2-2

Environmental

.........................•....

2-7

Cable

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

2-7

WARNING

The

remaining

portion

this

Table

Contents

lists

servicing

instructions

that

expose

personnel

hazardous

volt-

ages.

These

instructions

are

for

quali-

fied

service

personnel

only.

POWER

SUPPLY

PERFORMANCE

CHECK

Safety

Summary

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

3-1

General

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

3-2

Equipment

Required

............•............

3-3

Pre

par

ion

...........•....................

3-4

Procedures

.................•...............

3-7

NOTE

adjust

the

power

supply,

refer

the

adjustment

procedure

the

service

manual

for

the

product

which

the

supply

installed.

Supplies

..........

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

3-7

Line

Voltages

..........•...•............

3-17

INIT-0

and

PWRFL-0

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

3-18

067-1002-99

FIXTURE @

Section

Seotion

iii

REPLACEABLE

ELECTRICAL

PARTS

DIAGRAMS

AND

SCHEMATICS

REPLACEABLE

MECHANICAL

PARTS

067-1002-99

FIXTURE

ILLUSTRATIONS

Figure

Description

Page

1-1 The

067-1002-99

Calibration

Fixture

........

1 -Remote Swi t ch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 3

3-2

Performance

Check

Set-Up

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

3-4

3-3

Connecting

the

Load

Unit

the

Power

Supply

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

3-6

3-4

Connecting

the

Trigger

the

Power

Supply

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

3-8

3-5

Measuring

kHz

Ripple

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

3-10

3-6

Measuring

Ripple

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

3-15

3-7

Power-Up Waveform

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

..........

3-19

3-8

Power-Down Waveform

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

......

3-20

TABLES

Table

Description

Page

2-1

Physical

Specification

........

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

2-1

2-2

Electrical

Specification

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

2-3

Interconnect

Cable

Pin-Out

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

2-7

3-1

Performance

Check Summary

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

3-12

067-1002-99

FIXTURE

Figure

1-1.

The

067-1002-99

Calibration

Fixture.

v @

067-1002-99

FIXTURE

Section

INTRODUCTION

ABOUT

THIS

MANUAL

This

manual

describes

the

067-1002-99

Calibration

Fixture

(Figure

1-1)

and

its

use

servicing

the

620-0295-00

Low

Voltage

Power

Supply.

The

manual

includes:

•

Specifications

•

Cable

and

schematic

diagrams

•

Parts

list

• The

performance

check

procedure

for

the

power

supply.

The

following

documents

contain

information:

•

067-0883-99

Universal

Load

Unit

Instruction

Manual.

Refer

this

manual

for

general

operating

instruc-

tions

and

for

the

calibration

fixture

(plug-in)

theory

operation.

•

620-0295-00

Low

Voltage

Power

Supply

Service

Manual.

Refer

this

manual

for

power

supply

schematics,

parts

lists,

maintenance

procedures,

and

theory

operation.

The

Maintenance

section

contains

proce-

dure

bring

supplies

which

are

not

operating

properly

which

have

been

repaired.

The

manual

also

contains

abbreviated

performance

check

procedure

for

use

the

field.

NOTE

When

Universal

Load

Unit

available,

the

performance

check

procedure

this

manual

should

be used

preference

the

procedure

the

power

supply

ser-

vice

manual.

067-1002-99

FIXTURE

1-1

INTRODUCTION

• The

service

manual

for

the

product

which

the

power

supply

installed.

adjust

the

power

supply,

refer

the

adjustment

procedure

this

manual.

DESCRIPTION

THE

MODULE

The

calibration

fixture

includes

two

assemblies:

• A

personality

plug-in

for

the

TEKTRONIX

Universal

Load

Unit

• A

cable

harness

The

plug-in

assembly

consists

metal

framework

enclosing

circuit

board.

edge

connector

the

rear

the

board

connects

with

the

load

unit.

The

circuit

board

includes

set

resistors

which

program

two

load

levels

for

each

channel.

These

resistors

were

selected

accordance

with

equations

given

the

appendix

the

load

unit

instruction

manual.

chart

the

front

the

plug-in

lists

the

voltage

range

for

each

supply.

Channels

and

are

connected

parallel

the

supply,

and

Channels

5 and 6

are

connected

parallel

the

+55

supply.

The

cable

assembly

connects

the

load

unit

the

power

supply

under

test.

1-2 @

067-1002-99

FIXTURE

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