Tektronix 7A16A User manual

Other manuals for 7A16A

1

Table of contents

Other Tektronix Amplifier manuals

Tektronix

Tektronix 7B53A User manual

Tektronix

Tektronix 7A19 User manual

Tektronix

Tektronix 7A18 User manual

Tektronix

Tektronix 2A61 User manual

Tektronix

Tektronix TCPA300 SERIES User manual

Tektronix

Tektronix 5A15N User manual

Tektronix

Tektronix 7A22 User manual

Tektronix

Tektronix 7K11 User manual

Tektronix

Tektronix 7A12 User manual

Tektronix

Tektronix 7A13 User manual

Tektronix

Tektronix 7A22 User manual

Tektronix

Tektronix 3240 User manual

Tektronix

Tektronix 7A19 User manual

Tektronix

Tektronix 11A52 User manual

Tektronix

Tektronix 7A26 User manual

Tektronix

Tektronix 11A32 User manual

Tektronix

Tektronix TEKFAX ADA400A User manual

Tektronix

Tektronix Type B Plug-In User manual

Tektronix

Tektronix 11A71 User manual

Tektronix

Tektronix 2A63 Product guide

Tektronix

Tektronix 7A24 User manual

Tektronix

Tektronix P6046 User manual

Tektronix

Tektronix TYPE L User manual

Tektronix

Tektronix 7A19 User manual

Popular Amplifier manuals by other brands

ASTRO

ASTRO HVO V40 P operating manual

Marantz

Marantz SUPERSCOPE BLA-545 Service data

NAD

NAD CI980 Quick setup guide

Technics

Technics SE-CH770 Service manual

Harman Kardon

Harman Kardon HK6300 instruction manual

NAD

NAD T975 owner's manual

McIntosh

McIntosh MA6850 Brochure & specs

Electro-Harmonix

Electro-Harmonix ENGLISH MUFF’N manual

Viatron

Viatron Autrix Technical manual

GME

GME GA9800 instruction manual

Atlas

Atlas CP700 Specification sheet

Roland

Roland KC-1000 owner's manual

Pyle

Pyle PFMRA350BW user manual

Advantage

Advantage S-250 manual

IRT Electronics

IRT Electronics DVA-3007 manual

Dimavery

Dimavery BA-100 Series user manual

Sony

Sony XM-S400D operating instructions

Schertler

Schertler ROY X quick guide

1

Ν

ST

F

t

U

C

-

Γ

10

Ν

ΜΑΝ

V

A

L

7

Α

16

Α

A

MP

L

I

F

I

ER

Serial

Nu

mber

Te

k

t r

o

n

ix,

Inc

.

t

Ρ

.

Ο

.

Box500



t



B

eaverton,

Oregon

97005



+



Ph

o

ne

:

644-0161

t

Ca

b

les

:

Te

k

tronix

070-1378-00



772

W

A

RR

AN

TY

All

TEK

TR

O

N

IX

instr

u

ments

are

warrante

d

against

d

efective

m

aterials

an

d

wor

k

ma

ns

h

i

p

for

one

year

.

Any

questions

with

res

p

ect

to

th

e

warranty

s

hould be

ta

k

en

up

with

you

r

TEK

T

R

O

N

IX

F

iel

d

Enginee

r

or

re

p

r

esentative

.

All

requests

fo

r

r

e

p

ai

r

s

an

d

r

e

p

lace

m

ent p

arts

s

h

ould

be

d

i

r

ecte

d

to

the

T

EK

TR

O

N

IX

F

iel

d

Office

o

r r

ep

r

ese

n

tative

in

yo

u

r

ar

ea

.

T

h

is

will

assure

you

t

he

fastest

p

ossible

service

.

P

lease

incl

u

d

e t

he

instrument

Ty

pe

Nu

mbe

r

or

P

art

N

umbe

r

and

Serial

Nu

m

be

r

with

all

re

q

uests

fo

r p

arts

or

service

.

S

p

ecificatio

n

s

an

d

p

r

ice

c

hange p

rivileges

reserve

d

.

Copy

r

ig

h

t

©

1972

by

Te

k

tronix,

Inc

.,

B

eaverton,

O

r

egon

.

Pr

i

n

te

d

in

t

h

e

U

nited

States of

America

.

All,

rig

h

ts

reserved

.

Conte

n

ts of

t

h

is

pu

b

lication

may

not

be

re

pro

d

uced

in

any

fo

r

m

with

out

permission of

Te

k

tr

onix, Inc

.

U

.S

.A

.

an

d

foreign

T

EK

T

R

ON

IX

pro

d

ucts

cove

r

ed by

U

.S

.

and

foreign patents

and/or

paten

ts

p

e

nd

ing

.

T

EK

T

R

O

N

IX

is

α

registere

d

t

r

ademar

kof

Te

k

tro

n

ix,

In

TA

BLE

O

F

CO

N

T

EN

TS

S

E

CTIO

N

1



S

PE

CI

F

ICATIO

N

S

E

CTIO

N

2



O

PER

ATI

NG

I

N

ST

RU

CTIO

NS

SECTION3



CIRCUIT

DESCRIPTION

SECTION

4



M

AINTENANCE

SECTION

5



CALIBRATION

SECTION

6



ELECTRICAL

PARTS

L

IST

Abbreviations

an

d

Symbols

P

arts

Ordering Information

SECTION

7



DIAGRAMS

AND

CIRCUIT

B

OARD

ILLUSTRATIONS

Symbols

and

R

eference

Designators

SECTION

8



MECHANICAL

PARTS

LIST

M

echanical

Parts

L

ist

Information

Index

of

M

echanical

Parts

Illustrations

M

echanical

Parts

L

ist

Page

Intro

d

u

ction



1-1

Electrical

C

h

aracteristics



1-1

En

vi

r

onmental

C

h

ar

acteristics



1-2

Ph

ysical

C

h

aracteristics



1-2

Installation



2-1

Function

of

Controls

and Connectors



2-1

B

asic

O

p

eration



2-2

General

Operating

Information



2-2

Ap

p

lications



2-3

B

lock

Diagram

Description



3-1

Detaile

d

Circuit

Description



3-1

Preventive

M

aintenance



41

Troubleshooting



4-1

Corrective

M

aintenance



4-3

Performance

Check



ς

-1

Test

Eq

ui

p

ment

R

e

q

uired



ς

-1

Short

Form

Proce

d

ure



ς

-2

Calibration

Procedure



5-3

B

alance



5-4

Gain



5-4

Com

p

ensation



5-5

B

andwi

d

th

and

Risetime



5-6

Fig

.

1-1

.

7

Α

16

Α

Amplifier

Plug-in

.

Introduction

T

h

e

7

Α

16

Α

Am

p

lifier

Plug-in

U

nit

is

α

wi

d

e-ban

d

wi

d

t

h

am

p

lifier

d

esigne

d

for use with

T

EK

TR

O

N

IX

7000-Series

C

h

aracte

r

ist

i

cs

Deflectio

n F

acto

r

Cali

brate

d

Range

Acc

ur

acy

Un

cali

br

ate

d (V

AR

IA

BLE)

Gain

R

ange

F

re

quency

R

es

p

o

n

se

Ba

ndwi

d

t

h

AC

Co

up

le

d

(

L

owe

r

B

andwi

d

t

h

L

imit)

1

10

Hz

or

less

.

20

MHz

Bandwi

d

t

h

Ste

pR

es

po

n se

20

MH

z

B

a

n

d

wi

d

t

h

R

iseti

m

e

M

aximu

m

In

p

ut

Voltage

DC

Co

u

pled

AC

Co

up

le

d

S

PE

CI

F

ICATIO

N

TA

BLE

1-1

ELE

CTR

ICA

L

Pe

r

fo

r

ma

nce

R

equ

i

re

m

e n ts

5

m

V

/

d

iv



to



5

V

/

d

iv,



10

ste

p

s



i

n



α



1-2-5

se

qu

ence

.

W

it

h

i

n 2

ο

/

ο

of in

d

icate

d

d

eflectio

n

facto

r

wit

h

GAI

N

a

dju ste

d

at

10

m

V

/

d

iv

.

Co

n

tin

u

ously

varia

b

le

betwee

n

calibrate

d ste

p

s

;

exten

d

s

d

eflectio

n

facto

r

to

at least

12

.5

V/

d

iv

.

Wit

h

7400-Se

r

ies



Ι



Wit

h

7500-Series

60

MHz



Ι



90

MHz

W

it

h

7700-Series



W

it

h

7900-Se

r

ies

150

ΜΗτ



225

MH

z

R

iseti

m

e



Ι



W

it

h

7400-Series



W

it

h

7500-Series

5

.9

n

s



3

.9

n

s

W

it

h 7700-Se

r

ies



W

it

h

7900-Series

2

.4

n

s



1

.6

ns

Section

1-7

Α

16

Α

Oscillosco

p

es

.

T

h

e

7

Α

16

Α

can

be

o

perated

in

any

p

l

u

g-in

com

p

artme

n

t

of

7000-Series

Oscillosco

p

es

.

Rea

d

out

enco

d

ing

an

d

trace

i

d

entify

f u

nctions

are

p

rovide

d

to

r

eadout

e

q

ui

pp

ed

oscillosco

p

es

.

S

up

p

lemen

tal

Information

P

e

rm

its

a

dju

st

m

e

n

t of

d

eflectio

n

facto

r

for

cali

br

ate

d

o

p

er

ation

wit

h

all

7000-Se

r

ies

main-

fra

m

es

.

20

MH

z,

±3

MHz

.

21

n

s

maxi

mum

.

250

V

(DC

+

pea

k

AC)

;

Α

com

pon

ent

500

V

Ρ

-

Ρ

maxim

um,

1

kH

z

or

less

.

500

V

(DC

+ peak

AC)

;

Αcom

p

one

n t

500

V

Ρ

-

Ρ

maxim

um,

1

kH

z

or

less

.

S

p

ecification-7A16A

TA

BLE

1-1

(

εοπ

t)

C

h

a

r

acte

r

istics



Pe

r

fo

rm

a

nce

R

eq

u

i

r

eme

n

ts



Su

p

p

lemental

Informatio

n

Input

R

and

C

R

esistance



1

ΜΩ

t2%

.

Capacita

nce



20

p

F

±0

.5

pF

.

Ove

rd

rive

R

ecove

r

y

Ti

m

e

DC

Drift

TA

BLE

1-2



TA

BLE

1-3

ENV

I

R

O

NMEN

TA

L

CH

A

R

ACT

ER

ISTICS



PH

YSICA

L

0

.1

m

s

o

r

less

to

recover

to

wit

h

i

n

one

d

ivisio

n

after

re

m

oval

of

ove

rdr

ive

sig

n

al

of

up to

+75

d

iv

or

-75

d

iv

rega

rd

less

of

ove

rd

rive

sig

n

al

du

ration

.

D

r

ift

wit

hTi

m

e

(Ambient

Tem

p

0

.02 d

iv

o

r

less in

any one

min

u

te

afte

r

one

an

d

L

ine

V

oltage

Co

n

sta

n

t)



h

our

warm

up

.

D

r

ift

wit

h

Te

mp

e

r

at

ur

e

(

Line



Ι



N

ot

m

ore than

0

.02 d

iv/

°

C

.

V

oltage

Co

n

stant)

Size



F

its all

7000-Se

r

ies

p

l

u

g-i

n

co

m

pa

r

tments

.

R

efer

to

t

h

e

sp

ecificatio

n

s

fo

rt

he

associate

d

oscillosco

pe

.



W

eig

ht



0

.9

kg or 1

.9

l

bs

.

O

PER

ATI

N

G

I

N

ST

RU

CTIO

N

S

General



POSITION

Installation

inscribe

d

wit

h

t

he

unit

i

d

entification

"7

Α

16

Α

")

and

t

h e

plug-in

will

un

latc

h

.

Continue p

ulli

ng on

t

he

latc

h

to

sli

de



GAIN

Ad

j

ustme

n t

t h e

7

Α

16

Α

o

u t

of

t

he

oscilloscope

.

F

unctions

of

Controls

an

d

Co

n

nectors

F

ront

Panel

I

NPU

T

Co

n

nector

P

rovi

d

es

signal

connection

to

t

he

am

p

lifier

.

AC-G

N

D-DC

Switch

Selects

sig

n

al

i

npu

t

coup

ling

mo

de

.

AC

:

T

he

AC

com

po

n

e

n

t

of

t

h

e

signal

is

cou

p

led

to

t

he

in

p

ut

w

h

ile

t

h

e

DC

com

ponent

is

b

loc

ke

d

.

DC

:

B

ot

h

AC

and

DC

com

p

onents

of

t

he

sig

n

al is

coup

le

d

to

t

he

amplifier

i

np

ut

.

P

O

L

A

R

ITY

Switc

h

P

rovi

d

es

α

mea

n

s

of

i

n

verting

t

h

e

d

is

p

lay

.

B

A

N

D

W

IDT

H

Switc

h

Sectio

n

2-7

Α

16

Α

To



effectively



use



t

he



7

Α

16

Α

,



t

he



operation



an

d

Controls

p

osition

of

t

he

trace

.

capabilities

of

t

h

e

instrume

n

t

must

be k

nown

.

T

h

is

section

d

escribes

front-panel

co

n

trol

f

u

nctions,

general

information

on

sig

n

al in

p

ut

co

nn

ections,

an

d

ot

h

er

sub

j

ects

t

h

at

p

ertain



ID

EN

TI

F

Y

P

us

hbu

tton

to

various

measurement

app

licatio

n

s

.



Deflects

trace

about

0

.3

d

ivisio

n

for

trace

i

d

entification

.

In

i

n

str

u

ments

with

rea

d

out,

also

re

p

laces

rea

d

o

u t

wit

h

t

h

e

wor

d

"ID

EN

TI

F

Y"

.

T

h

e

7

Α

16

Α

is

cali

br

ate

d

and

rea

dy

for

use

as

receive

d

.

It



VO

L

TS/D

I

V

Switch

can be

installed

in

any

com

partment

of

T

EK

TR

O

N

IX

7000-Series

Oscillosco

p

es,

but

is

inten

d

e

d

for

u

se

p

rimarily



Selects

cali

b

rate

d

d

eflection

factors

from

5

mV

/

d

iv

to

in

vertical

p

lug-i

n

com

partmen

ts

.

To

install,

alig

n

t

h

e

u

pp

er



5

V

/

d

iv

;

10

ste

p

s

in

α

1-2-5

se

qu

ence

.

and

lower

rails

of

the 7

Α

16

Α

with

t

he

oscillosco

p

e

trac

k

s

and

i

n

sert

t

he

p

l

u

g-in

.

T

h

e

front

panel

will

b

e

fl

u

s

h

wit

h

t

he

fro

n

t

of

t

h

e

oscillosco

pe

w

h

e n

t

he

p

lug-in

is

inserted,

an

d



V

A

R

IA

BLE

(

VO

L

TS/DI

V

)

t

he

latc

h

at

t

he b

ottom-left

corner

will

be

in

place

against

t

he

front

p

anel

.



P

rovi

d

es

continuously

variable

uncali

b

rated

settings

be-

t

w

een

calibrate

d

ste

p

s

.

E

xte

nd

s t

h

e

deflection

factor

to

To

remove

t

he 7

Α

16

Α

,

pull

on

t

he

latc

h(wh

ic

h

is

12

.5

volts/

d

ivisio

n

or

m

ore

.

Screw

d

river

ad

ju

stment

permits

calibratio

n

of

d

eflection

factor

.

+

UP

:

Α

positive-goi

ng

signal at

t

h

e

I

NPU

T

con

n

ecto

r

d

eflects

t

h

e

C

R

T

d

isplay

up

ward

.

I

NVER

T

:

Α

positive-goi

ng

sig

n

al

at

t

he

I

NPU

T

con-

nector

d

eflects

t

he

C

RT

d

is

p

lay

d

ownwar

d

.

Pr

ovides

α

m

ea

n

s

of

limiti

n

g t

he upper ban

d

wi

d

t

h

.

FULL

:

Allows

t

h

e

7

Α

16

Α

to

op

erate

at

f

u

ll

rate

d

GND

:

Gro

u

nds

t

he

am

p

lifier in

p

ut

w

h

ile

main

taining

t

he



b

an

d

widt

h

.

same

loa

d

at

t

h

e

I

NPU

T

connector

.

P

rovi

d

es

α

p

at

h

for

p

re-c

h

arging

t

h

e

AC

cou

p

ling

ca

p

acito

r

(t

h

is

feature

p

ro

tects

b

ot

h



t

he 7

Α

16

Α

an

d

t

h

e

so

u

rce

generator

from



20

MH

z

:

R

e

d

uces

t

he u

pp

er

b

andwi

d

t

h

of

t

h

e

7

Α

16

Α

to

p

ossi

b

le

over-voltage

conditions)

.



about 20

MH

z

.

O

peration-7

Α

16

Α

B

ASIC

O

PER

ATIO

N



T

he

T

EK

TR

O

N

IX Ρ

6053

p

ro

b

e

is

eq

ui

pp

e

d with α

rea

d

out cod

ing

ring

w

h

ic

h

connects

to

α

circ

u

it

in

t

he

Ge

n

eral

.

T

h

is

proce

d

ure

d

emonstrates

t

h

e

use

of

t

he



am

p

lifie

r

unit

.

T

h

is

automatically

corrects

t

h

e

rea

dout

co nn ectors

a

nd

controls of

t

h

e

7

Α

16

Α

,

w

h

ile

at

t

h

e

same



d

is

p

layed

on

t

h

e

C

R

T

to

t

h

e

actual

d

eflection factor

at

t

he

time

provi

d

ing

α

mea

n

s

of

check

ing

th

e

basic

operation

of



ti

p

of

t

he

p

ro

b

e

.

T

h

is

p

ro

b

e

is

recommen

de

d

for

use wit

h

t

he

instrument

.



t

he7

Α

16

Α

and

an

oscilloscope

e

q

u

i

p

pe

d

wit

h

readout

.

T

he

T

EK

T

R

O

N

IX

Ρ

6054

p

ro

b

e

is

electrically

ide

n

tical

to

t

he

Ρ

6053

b

ut

is

inten

d

e

d

for use wit

h systems not eq

u

i

pped

Pr

eliminary Set

up

. I

n

stall

t

he 7

Α

16

Α

into

any 7000-



wit

h

rea

d

out

.

For

more

information

refer

to

t

he

Te

k

tronix,

series

oscilloscope

vertical

compartment

an

d

set

t

he

oscillo-



Inc

.

catalog

.

sco

p

e

VER

TICA

L

M

OD

E

an

d

T

R

IGG

ER SO

UR

C

E

to

t

he

p

ro

p

er

setti

n

gs

.

Install

α

7-series

time-base

unit into

α

h

o

r

izontal



Vertical

Gain

C

h

ec

k

and

A

d

j

ustment

com

partment

an

d

set

t

he

oscillosco

p

e

HO

R

IZO

N

TA

L

To

ch

ec

k

t

he

gai

n

of

t

he 7

Α

16

Α

,

set

t

he

VO

L

TS/DI

V

M

OD

E

to

t

h

e

p

ro

p

er

setting

.

Set

t

he

time-

b

ase

unit

to

α



s

w

itc

h

to

10

mV

a

nd connect α40

m

V,

1

kH

z

sig

n

al

from

swee

p

rate

of

on

e-milliseco

ndper

division

an

d

set

t

he



the

oscillosco

p

e

calibrator

to

t

h

e

In

p

ut

connector

.

T

h

e

triggeri

ng

mode

to

A

U

TO

.



vertical

d

eflection

sh

ould

be

exactly

four

d

ivisions

.

If

not,

a

d

ju

st

t

he

front panel

GAI

N

for

exactly

four

divisions

.

Proced

u

re

1

.

Set

t

h

e 7

Α

16

Α

AC-G

N

D-DC

switc

h

to

GND

and

p

ositio

n

t

h

e

trace

to

t

h

e

ce

n

ter

of

t

he

graticule

.

2

.

Set

t

he

VO

L

TS/DI

V

switc

h

to

10

m

V

an

d

apply

α

40

m

V

1

kH

z

s

q

uare-wave

signal

from

t

h

e

oscilloscope

CA

L

I

BR

ATO

R

to

t

he 7

Α

16

Α

I

NPU

T

connector

.

Set

t

he

AC-G

N

D-DC

switc

h

to

DC

and ch

ec

k

for

α

fou

r

-

d

ivisio

n

dis

p

lay

.

3

.

Set

P

O

L

A

R

ITY

switc

h

to

I

NVER

T

an

d

ch

ec

k

t

h

at

t

h

e

dis

p

laye

d

signal

is

inverted

as

compared

to

its

ap

p

ear-

ance

in

step

2

.

4

.

Set

t

he

AC-G

N

D-DC

switc

h

to

AC

a

nd ch

ec

k

t

h

at

t

h

e

trace

is

centere

d

on

t

h

e

C

R

T

g

r

aticule

.

5

.

Set

t

h

e

oscillosco

pe

CA

L

I

BR

ATO

R

to

4

m

V

and

t

h

e

7

Α

16

Α

MAG

switc

h

set

to

ιΧ

10

.

C

h

ec

k

for

α

fo

u

r-

d

ivision

d

is

p

lay

.

6

.

P

ress

t

h

e

7

Α

16

Α

ID

EN

TI

F

Y

bu

tton,

c

h

ec

k

t

h

at

t

h

e

d

is

p

lay

moves

u

p

ward

a

pp

roximately

0

.3

division

an

d

t

h

e

rea

dou

t

(if

so

e

qu

ip

p

e

d

)

rea

d

s

"ID

EN

TI

F

Y"

.

G

EN

E

R

A

L

O

PER

ATI

NG

I

NF

O

RM

ATIO

N

Signal

Connectio

n

s

In

p

ut

Co

u

pling

T

he

AC-G

N

D-DC

switc

h

allows

α

ch

oice

of

in

p

ut

cou

p

ling

met

h

od

s .

T

h

e

ty

p

e

of

d

is

p

lay

d

esired

a

nd

t

he

app

lie

d

signal

will

determine

t

h

e

cou

p

li

ng

to

use

.

T

he

DC

cou

pling

p

osition

ca

n

be

use

d

for

most

ap

p

lications

.

For

AC

signals

wit

h

f

r e

q

uencies

b

elow

a

b

out

30

H

z

(10

H

z

wit

hα10

Χ

p

robe),

an

d

s

q

uare

waves

w

h

ose

low-frequency

com

p

onents

are

imp

ortant

to

t

he

display,

it

is

necessary

to

use

DC

cou

pling

to

obtain

α

satisfactory

p

resentation

.

In

t

he

AC

coup

li

n

g

p

ositio

n

t

he

DC

component

of

t h e

signal

is

b

loc

ked

b

yα

ca

p

acitor

in

t

he

in

pu

t

circ

u

it

.

T

he

AC

coup

ling

position

p

rovides

t

he

best

display

of

signals

wit

h

α

DC

com

p

onent

muc

h

larger

t h

an

t

he

AC

com

p

on

ent

.

T

h e

p

re-c

h

arge

feature

s

h

oul

d

be

use

d

w

hen

t

h

ere

is

α

p

ossi

b

ility

of

h

aving

α

resi

d

ual

c

h

arge

on

t

h

e

i

np

ut ca

p

acitor

of

t h e

op

p

osite

polarity

to

t

he

inte

nded

i

np

ut,

and

w

h

en

t h e

algebraic

sum

of

t

h

e

com

b

i

n

atio

n

of

ch

arges

may

b

e

greater

t

han

t

h

e

maximum

in

p

ut

limitations

of

t

he

am

p

lifier

.

To

use

t

h

is

feature,

first

set

t

he

coupling

switc

h

to

GN

D,

th

en

connect

t

he pro

b

e

to

t

h

e

circ

u

it

an

d

wait

about

two

seco

nd

s

for

t

he coup

ling

ca

p

acitor

to

c

h

arge,

set

t

h

e

coup

ling

switc

h

to

AC

.

In

general,

p

robes

offer

t

he

most

co

n

venie

n

t

mea

n s

of



T

h

e

G

N

D

p

osition

p

rovi

d

es

α

ground

reference

at

t

he

con

necting

α

sig

n

al

to

t

he

i

n

p

ut of

t

he 7

Α

16

Α

.

Α

10

Χ



inpu

t

of

t

h

e

am

p

lifier

without

externally

grou

nding

t

he

atten

u

ator

pro

b

e

offers

α

h

ig

h

im

p

e

d

ance

and

allows

t

h

e



In

p

u

t

connectors

.

However,

t

h

e

signals

connecte

d

to

t

he

circ

u

it

under

test

to

p

erform

very

close

to

normal

o

p

erating



in

pu

ts

are

not

gro

und

ed,

and

the

same

DC

loa

d

is

p

resente

d

con

d

itions

.



to

t

he

signal

source

.

V

O

L

TS/DI

V

and

V

A

R

IA

BL

E



2

.

Set

t

he

Co

u

pling

switchto

AC

.

T

h

e

amount

of d

eflectio

n produced

by

α

sig

n

al is

d

etermine

d

by

t

he

signal

amplitu

d

e, t

he

attenuatio

nfacto

r

of

t

heprob

e, t

h

e

setting

of

t

he

VO

L

TS/DI

V

switch

,

and

t

he

setting

of

t

h

e

VA

R

IA

BLE

Control

.

Calibrate

d

d

eflection

factors

re

p

resente

d

b

y

t

h

e

setting

of

t

he

V

O

L

TS/

DI

V

switch

apply

only

w

hen

t

h

e

V

A

R

IA

BLE

con

trol

is

i

n

t

he

CA

L p

ositio

n

(

p

ush

e

d

-in)

.

T

he

VA

R

IA

BLE

control p

rovides

variable

u

ncalibrate

d

settings

between

t

h

e

cali

brated

ste

p

s

of

t

he

VO

L

TS/DI

V

switch

.

W

it

h

t

h

e

V

A

R

IA

BLE

control

outset

fully

cou

nter-

clockwise

the

uncalibrated d

eflectio

nfactor

is

exten

d

ed

to

at

least

2

.5

times

t

he

atte

n

uator

setting

.

By

a

pp

lyi

ng

α

calibrate

d

voltage

source

to

t

h

e

I

NPU

T

conn

ector,

any

specific

d

eflection

factor

can

be

set

with

in t

he

range

of

t

h

e

V

A

R

IA

BLE

con

trol

.

P

olarity

Switch

The

P

O

L

A

RITY

switch p

rovi

d

es

α

means

of

inverting

t

h

e

d

is

p

laye

d

signal

.

W

it

h

t

h

e

P

OL

A

R

ITY

set

to +

UP,

α

p

ositive-going

sig

n

al

at

t

h

e

I

NPU

T

p

ro

d

uces

an

up

ward

d

eflectio

nof

t

he

CRT

display

.

W

it

h

t

h

e

P

O

L

A

R

ITY

set

to

I

NVER

T,

α

p

ositive-going

signal

will

p

ro

d

uce

α

d

ownwar

d

d

eflectio

nof

t

h

e

CR

T

d

isplay

.

Trace

I

d

entification

Wh

en

t

he ID

EN

TI F

Y

b

utton

is

p

resse

d

,

t

he

trace

is

deflecte

d

u

p

war

d

about

0

.3

d

ivision

to

i

dentify

t

h

e 7

Α

16

Α

trace

.

T

h

is

feature

is

p

articularly

usef

u

l

w

h

en

multi

p

le

traces are

d

isplayed

on

the

CR

T

.

In

mainframes

wit

h

rea

d

out,

it

also

re

p

laces

t

h

e

d

eflection

factor

rea

d

out wit

h

t

he

wor

d

"ID

EN

TI F

Y"

.

General

A

PPL

ICATIONS

P

ea

k

-to-

P

ea

k

V

oltage

M

easurements

(AC)

Toma

k

e

pea

k

-to-

peak

voltage

meas

u

rements,

use

t

he

following

p

r

oce

d

ure

:

1

.

Apply

t

h

e

signal

to

t

he

In

p

ut connector

.

ΝΟΤΕ

ΝΟΤΕ

P

osition

to

ce

n

ter

vertical

line

Operation-7A

16A

For

low-frequency

signals

below

about

30

h

ertz,

use

the

DC

position

to

prevent

attenuation

of

the

signal

.

3

.

Set

t

h

e

VO

L

TS/DI

V

switchto d

is

p

lay

about

five

vertical

d

ivisions

of

t

h

e

waveform

.

4

.

Set

t

he

time-base

Triggering

controls for

α

stable

d

is

p

lay

.

Set

t

he

Time

B

ase

to α

swee

p

rate

w

h

ic

h

dis

p

lays

several

cycles

of

t

h

e

waveform

.

5

.

Tur

n

t

he 7

Α

16

Α

P

OSITIO

N

control so the

lower

p

ortio

n

of

t

h

e

waveform

coinci

d

es

wit

h

o

ne of

t

he

gratic

u

le

li

n

es

below

t

he center

h

orizontal

li

n

e,

and

t

he topof

t

h

e

waveform

is

wit

h

in

t

he

viewi

ng

area

.

W

it

h

t

h

e

time

base

P

osition

co

n

t

r

ol,

move

t

h

e

dis

p

lay

so

one

of

t

he u

pp

er

p

ea

ks lies

n

ear

the

center

vertical

line

(see

F

ig

.

2-1)

.

6

.

M

easure

t

he

d

ivisions

of

vertical

d

eflection

p

eakto

p

ea

k

.

C

heck

t

h

at

t

h

e

V

A

RIA

BLE

control

is

i

n

t

h

e

CA

L

p

osition

.

This

technique

can

also

be used

to

make

measu

r

e-

ments

between

two

p

oints

on

the

waveform,

r

athe

r

t

han

p

ea

k

to

peak

.

T

he

following

i

n

formation

d

escribes

the

p

r

oce

d

ures

a

nd

tech

ni

q

ues

for

ma

k

ing

meas

u

rements

with

α

7

Α

16

Α

an d

t

h

e

associate

d

T

EK

T

R

O

N

IX

oscillosco

p

e

and

time-base

.

T

h

ese

a

pp

licatio

n

s

are

n

ot

d

escri

bed

in

d

etail,

since

eac

h

a

pp

lica-

tio

n

must

b

ead

a

pted to

the re

q

ui

r

ements

of

the

i

nd

ivi

d

ual

m

eas

u

rements

.

T

h

is

instrument

can

also

b

e

used

for

many

app

lications

w

h

ic

h

are

n

ot

described

in t

h

is

manual

.



defle

V

e

r

c

ti

ι

co

ι

n

Co

n

tact

your

local

T

EK

T

R

O

N

IX

F

iel

d Office or represen

t-

ative

for

assistance

in

ma

k

ing

s

p

ecific

measureme

n

ts

wit

h

t

h

is

instrument

.

F

ig

.

2-1

.

M

eas

ur

i

ng

t

h

e

p

ea

k

-to-pea

k

voltage

of

α

waveform

.

2-3

Ope

r

ation-7

Α

16

Α

7

.

Mu

lti

p

ly

t

h

e

d

istance

measu

re

d

in

ste

p7b

y

t

he



5

.

Set

t h e

time-

b

ase

Triggeri

n

g

controls fo

r

α

sta

b

le

V

OL

TS/DI

V

switc

h

setting

.

I

n

clude

t

he

attenuation

factor



d

is

p

lay

.

Set

t

he

Time

Base

swee

p

rate

for

an o

p

ti

m

um

of

t

he p

robe

if

used

.



d

is

p

lay

of

t

he

waveform

.

EXA

MPLE

:

Assu

me

t

h

at

t

h

e

peak

to

p

ea

k

vertical



6

.

Measure

t

h

e

d

ista

n

ce

in

d

ivisio

n

s

between

t

h

e

refer-

d

eflectio

n

is

4

.5

d

ivisions

using

α

10

Χ

attenuator

p

robe,



ence

line

and

t

he p

oint

on

t

he

waveform

at

w

h

ic

h

t

he

DC

and

t

he

VO

L

TS/DI

V

switc

h

is

set

to

1

V

.



level



is

to



be

measured

.



For

exam

p

le,

in



Fig

.

2-2

t

he

measurement

is

between

t

h

e

reference

line

an

d

p

oint

Α

.

vertical

VO

L

TS/DI

V

p

ro

b

e

Volts

=

d

eflection

Χ



Χ

atten

u

ator

(

d

ivisio

n

s)

setti

n

g

facto

r

S

ub

stituti

n

g

t

he

given

val

u

es

:

Volts

P

ea

k

to

P

ea

k =

4

.5

Χ

1

Χ

10

T

he

p

ea

k

-to-

p

ea

k

voltage

is

45

volts

.

If

you

are

usi

ng

α

7

Α

16

Α

wit

h

α

cod

e

d

pro

b

e

an

d

an

oscillosco

p

e

equ

i

pp

e

d with

rea

do

u

t, si

mp

ly

m

u

lti

p

ly

the

d

istance

measured

in

ste

p 7

b

y

t

he

deflection

factor

d

is

p

laye

don

t

he

CRT

.

Instantantous

V

oltage

Measurements

(DC)

To

measure

t

he

DC

level

at

α

give

n

point

on

α

waveform,

p

rocee

d

as

follows

:

1

.

Co

n

nect

t

he

signal

to

t

h

e

In

p

ut

connector

.

2

.

Set

t

he

VO

L

TS/DI

V

switc

h

to

d

isplay

about

five

d

ivisio

n

s

.

3

.

Set

t

h

e

Co

up

ling

switc

h

to

G

ND

an

d

p

osition

t

he

trace

to

t

he

bottom

graticule

line

or ot

h

e r r

efe

r

ence

line

.

If

t

he

voltage

is

negative

wit

h

res

p

ect

to

grou

nd

,

p

osition

t

he

trace

to

t

he

to

p

gratic

u

le

li

ne

.

Do

n

ot

move

t

he

POSITIO

N

control

after

t

h

is

reference

line

h

as

b

een

establis

h

e

d

.

NO

ΤΕ

7

.

E

sta

b

lis

h

t

he p

olarity

of

t

he

waveform

.

W

it

h

t

h e

+

UP

/I

NV

switc

h

i

n

t

h

e

+

UP

p

ositio

n

,

a

ny

p

oi

n t

above

t h e

reference

line

is

p

ositive

.

8

.

Multiply

t

h

e

d

ista

n

ce

measured

i

n

step

7 by

t

h

e

VO

L

TS/DI

V

switc

h

setti

n

g

.

I

n

clude

t

h

e

atte

n

uation

facto

r

of

t

h

e

p

robe,

if

use

d

.

EXA

MPLE

:

Assu

me

t

h

e

vertical

d

ista

n

ce

measure

d

is

3

.6

d

ivisions (see

Fig

.

2-2)

and

t

h

e

waveform

is

above

t

he

r

eference

line

usi

ng

α

10

Χ

p

r

obe

with

α

VO

L

TS/DI

V

switc

h

setting

of

0

.5

V

.

U

sing

t

h

e

form u

la

:

Instan-

vertical



VO

L

TS/

p

ro

b

e

taneous

=

d

istance



Χ

polarity

Χ



DI

V



Χ

atte

n

uatio

n

V

oltage

(

d

ivisions)



setting

facto

r

S

ub

stit

u

ti

n

g t

he

given

values

:

Instantaneo

u

s

Voltage

=3

.6

Χ

1

Χ

0

.5

VΧ

10

T

he

instantaneo

u

s

voltage

is

18

volts

.

To

measure

α

voltage

level

with

r

espect

to

anot

h

e

r

Ve

r

tical

voltage

rat

her

t

h

an groun

d,

ma

k

e

t

h

e

following



distance

c

h

anges

to

Step

4

.

Set

t

h

e

Coupling

switc

h

to

DC

and

apply

t

h

e

refe

r

ence

voltage

to

t

h

e Input

con

n

ecto

r

.

T

h

en

position

t

h

e

trace

to

t

h

e

r

efe

r

ence

line

and

disconnect

t

h

e

r

efere

n

ce

voltage

.

R

efe

r

e n

ce

line

4

.

Set

t

h

e

Cou

p

ling

switc

h

to

DC

.

T

he

gro

und

refe

r

ence



'



'

line

can

b

e ch

ec

ke

d

at

any

time

by

switc

h

ing

to

t

he

GND



F

i

g

,

2

.2,

Meas

u

ri

ng

i

n

sta

n

ta

n

eo

u

s

voltage

wit

h

respect to

same

position

.



reference

.