Tektronix SG 505 User manual

Tektronix

Inc.

P.O.

Box

500

Beaverton

Oregon

070-4359-00

Product

Group

97077

Tektronix

COMMITTED

EXCELLENCE

PLEASE

CHECK

FOR

CHANGE

INFORMATION

THE

REAR

THIS

MANUAL

505

OPTION

OSCILLATOR

INSTRUCTION

MANUAL

Serial

Number

First

Printing

NOV

1982

1979

1982

Tektronix

Inc.

All

rights

reserved

Contents

this

publication

may

not

reproduced

any

form

without

the

written

permission

Tektronix

Inc.

Products

Tektronix

Inc.

and

its

subsidiaries

are

covered

U.S.

and

foreign

patents

and

pending

patents

are

regis

TEKTRONIX

TEK

SCOPE

MOBILE

and

tered

trademarks

Tektronix

Inc.

TELEQUIPMENT

registered

trademark

Tektronix

U.K.

Limited

Printed

U.S.A.

Specification

and

price

change

privileges

are

reserved

PREFACE

The

information

this

instruction

manual

describes

only

the

Option

version

the

505

Oscillator

All

references

this

manual

the

505

Oscillator

refer

only

the

Option

version

unless

otherwise

indicated

505

Opt

separate

instruction

manual

available

for

the

standard

505

Oscillator

with

Option

information

Contact

your

local

Tektronix

field

office

representative

for

order

ing

information

Preface

List

Illustrations

List

Tables

Operators

Safety

Summary

Servicing

Safety

Summary

Section

SPECIFICATION

TABLE

CONTENTS

Introduction

....

Standard

Accessories

...

Performance

Conditions

Electrical

Characteristics

Front

Panel

....

Rear

Interface

Miscellaneous

Environmental

Physical

Characteristics

Section

OPERATING

INSTRUCTIONS

Preparation

for

Use

Repackaging

Information

Controls

and

Connectors

Operators

Familiarization

General

Operating

Information

Frequency

Selection

Output

Level

Selection

Intermodulation

Test

Signal

Output

Connections

...

Rear

Interface

Signals

WARNING

Page

Section

THEORY

OPERATION

Introduction

....

Phase

Shift

Oscillator

Amplitude

Detector

Peak

Detector

...

Amplitude

Control

vii

1-1

1-2

1-3

1-4

1-5

THE

FOLLOWING

SERVICING

INSTRUC

TIONS

ARE

FOR

USE

QUALIFIED

PER

SONNEL

ONLY

AVOID

PERSONAL

INJU

NOT

PERFORM

ANY

SERVICING

OTHER

THAN

THAT

CONTAINED

OPER

ATING

INSTRUCTIONS

UNLESS

YOU

ARE

QUALIFIED

2-1

2-2

2-4

2-7

3-1

Section

THEORY

OPERATION

(

cont

)

Output

Buffer

Amplifier

...

Sync

Driver

and

Sync

Amplifier

Power

Supply

IMD

Oscillator

Inverting

Buffer

and

Power

Amplifiers

Output

Attenuators

and

Rear

Interface

Buffers

....

Section

CALIBRATION

PROCEDURE

Introduction

Test

Equipment

Requirements

Performance

Check

....

Introduction

...

Test

Equipment

Required

Preparation

Procedure

Adjustments

Introduction

...

Test

Equipment

Required

Preparation

Procedure

505

Opt

Section

MAINTENANCE

Introduction

Obtaining

Replacement

Parts

Cleaning

Instructions

.....

Circuit

Board

Removal

and

Installation

Low

Frequency

Selection

Troubleshooting

Aids

Troubleshooting

Equipment

Static

Sensitive

Components

Section

OPTIONS

Accessories

Section

REPLACEABLE

ELECTRICAL

PARTS

Section

DIAGRAMS

AND

CIRCUIT

BOARD

ILLUSTRATIONS

Change

Information

Section

REPLACEABLE

MECHANICAL

PARTS

AND

EXPLODED

VIEW

Page

3-1

3-2

3-3

4-1

4-3

4-15

5-1

5-2

5-3

iii

505

Opt

Fig

No.

2-1

2-2

2-3

2-4

2-5

2-6

2-7

4-1

4-2

4-3

4-4

4-5

4-6

4-7

4-8

4-9

4-10

4-11

5-1

8-1

8-2

8-3

8-4

LIST

ILLUSTRATIONS

505

Option

installation

and

removal

505

Option

front

panel

controls

and

connectors

Connection

configurations

Floating

oscillator

grounded

unit

under

test

break

ground

loops

Added

capacitor

between

and

chassis

ground

improves

RFI

rejection

505

terminal

grounded

and

cable

shield

connected

ground

post

Three

conductor

shielded

cable

allows

remotely

grounded

while

cable

shield

grounded

both

ends

....

Attenuator

step

accuracy

setup

Distortion

measurement

setup

null

adjustment

harmonic

distortion

display

harmonic

distortion

display

kHz

harmonic

distortion

display

FREQUENCY

dial

adjustment

Location

R1423

Amp

Cal

Adj

Location

R1126

Bal

Adj

Location

R1301

Sync

Lvl

Adj

Location

R1339

Ratio

Adj

Intermodulation

signal

switch

NOTE

The

following

illustrations

are

located

the

diagrams

foldout

section

the

rear

this

manual

Troubleshooting

flow

chart

oscillator

and

output

circuits

Main

Board

(

A12

)

Troubleshooting

flow

chart-

power

supply

Option

board

(

A13

)

Page

2-1

2-3

2-5

2-6

2-7

4-5

4-9

4-10

4-11

4-12

4-15

4-16

4-17

4-18

5-3

Table

No.

1-1

1-2

1-3

1-4

4-1

4-2

4-3

4-4

4-5

4-6

4-7

5-1

8-1

8-2

8-3

8-4

8-5

8-6

Electrical

characteristics

Miscellaneous

Environmental

LIST

TABLES

Physical

characteristics

...

List

test

equipment

requirements

Frequency

accuracy

check

Attenuator

step

accuracy

Level

flatness

check

Level

flatness

check

(

alternative

method

)

Harmonic

correction

factors

Factors

for

THD

computation

Relative

susceptibility

static

discharge

damage

NOTE

The

following

tables

are

located

the

diagrams

foldout

section

the

rear

this

manual

Component

reference

chart

Rear

interface

connector

assignments

Component

reference

chart

Component

reference

chart

Component

reference

chart

Component

reference

chart

505

Opt

Page

1-2

1-4

1-5

4-1

4-3

4-5

4-7

4-8

4-10

4-11

5-4

505

Opt

The

general

safety

information

this

part

the

summary

for

both

operating

and

servicing

personnel

Specific

warnings

and

cautions

will

found

throughout

the

manual

where

they

apply

but

may

not

appear

this

summary

This

Manual

CAUTION

statements

identify

conditions

practices

that

could

result

damage

the

equipment

other

property

OPERATORS

SAFETY

SUMMARY

WARNING

statements

identify

conditions

practices

that

could

result

personal

injury

loss

life

TERMS

Marked

Equipment

CAUTION

indicates

personal

injury

hazard

not

immediate

accessible

one

reads

the

marking

hazard

prop

erty

including

the

equipment

itself

This

Manual

DANGER

indicates

personal

injury

hazard

immediately

cessible

one

reads

the

marking

SYMBOLS

Marked

Equipment

This

symbol

indicates

where

applicable

cautionary

other

information

found

DANGER

High

voltage

Protective

ground

(

earth

)

terminal

ATTENTION

refer

manual

Refer

manual

Power

Source

This

product

intended

operate

power

module

con

nected

power

source

that

will

not

apply

than

250

volts

rms

between

the

supply

conductors

between

either

supply

conductor

and

ground

protective

ground

connec

tion

way

the

grounding

conductor

the

power

cord

essential

for

safe

operation

Grounding

the

Product

This

product

grounded

through

the

grounding

conductor

the

power

module

power

cord

avoid

electrical

shock

plug

the

power

cord

into

properly

wired

receptacle

before

connecting

the

product

input

output

terminals

pro

tective

ground

connection

way

the

grounding

conduc

tor

the

power

cord

essential

for

safe

operation

Danger

Arising

From

Loss

Ground

Upon

loss

the

protective

ground

connection

all

accessi

ble

conductive

parts

(

including

knobs

and

controls

that

may

appear

insulating

)

can

render

electric

shock

Use

The

Proper

Fuse

avoid

fire

hazard

use

only

the

fuse

specified

the

parts

list

for

your

product

and

which

identical

type

voltage

rating

and

current

rating

Refer

fuse

replacement

qualified

service

personnel

Not

Operate

Explosive

Atmospheres

avoid

explosion

not

operate

this

product

explo

sive

atmosphere

unless

has

been

specifically

certified

for

such

operation

Not

Operate

Plug

Unit

Without

Covers

avoid

personal

injury

not

operate

this

product

with

out

covers

panels

installed

not

apply

power

the

plug

via

plug

extender

SERVICING

SAFETY

SUMMARY

FOR

QUALIFIED

SERVICE

PERSONNEL

ONLY

Refer

also

the

preceding

Operators

Safety

Summary

Not

Service

Alone

not

perform

internal

service

adjustment

this

prod

uct

unless

another

person

capable

rendering

first

aid

and

resuscitation

present

Use

Care

When

Servicing

With

Power

Dangerous

voltages

exist

several

points

this

product

avoid

personal

injury

not

touch

exposed

connections

and

components

while

power

Disconnect

power

before

removing

protective

panels

sol

dering

replacing

components

505

Opt

Power

Source

This

product

intended

operate

power

module

con

nected

power

source

that

will

not

apply

than

250

volts

rms

between

the

supply

conductors

between

either

supply

conductor

and

ground

protective

ground

connec

tion

way

the

grounding

conductor

the

power

cord

essential

for

safe

operation

Not

Wear

Jewelry

Remove

jewelry

before

servicing

this

instrument

Rings

necklaces

and

other

metallic

objects

could

come

into

con

tact

with

dangerous

voltages

and

currents

vii

505

Opt

viii

SOURCE

INTERMOD

TEST

SIG

FREQ

MIXED

SYNC

OUT

505

OSCILLATOR

VERNIER

9'L

150

-28

-18

Tektronix

OUTPUT

LEVELA

dBm

INTO

800

(

-8

+12

-30

FREQUENCY

-48

BALANCED

OUTPUT

505

Option

Oscillator

CAL

+22

5052

NCAL

X10k

Xik

X100

X10

-25Vpk

GND

FLTG

POWER

4359-01

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