Tektronix 178 Manual de usuario

Otros manuales para 178

1

Este manual sirve para los siguientes modelos

2

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ι

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178

577

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1

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ANY

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ICI

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G OT

HER

THAN

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CO

N

TAI

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D

IN

O

PER

ATI

N

G

I

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ST

RU

CTIONS

UNLESS

YO

U

A

RE

Q

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A

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I

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TO

DOSO

.

COMMITTED

TO

E

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PLE

AS

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C

K

F

O

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C

H

A

N

G

E

I

NF

O

RM

ATIO

N

AT

THE

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AR

O

F

T

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IS

M

A

NU

A

L

.

178

577

D1/D2

S

ERV

IC

E

I

N

ST

RU

CTIO

N

M

A

NU

A

L

Tektronix,

Inc

.

Ρ

.

Ο

.

Box

500

B

eaverton,

Oregon



97077



Serial

N

umber

070-1978-00



F

irst

Printing

SEP

1977

Product

Group

48



R

evised

APR

1985

Co

p

y

r

ig

h

t

f1977 Tek

tronix, Inc

.

All rig

h

ts

rese

r

ve

d

.

Contents

of

t

h

is

pub

licatio

n

may

not

be

re

produced

i

n

any

form

wit

h

out

t

he

written

permissio

n

of

Tek

tr

on

ix,

I

n

c

.

Products

of

Tek

tronix,

I

n

c

.

and

its

su

b

sidiaries

are

covered

by

U

.S

.

and

foreign

patents

an

d

/or

pen

d

ing

pate

nts

.

TEKT

R

O

N

IX,

ΤΕΚ

,

SCO

PE-M

OB

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a

n

d



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registe

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onix

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Pr

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U

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.

Sp

ecification

an

d

price

ch

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p

r

ivileges

a

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eserved

.

IN

ST

RUMEN

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S

ER

IA

L

NUMBER

S

Eac

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instrument

h

as

α

serial

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United

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have

six

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i

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digits

.

T

h

e cou

n

try

of

manufacture

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i

d

entifie

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as

follows

:

ΒΟΟΟΟΟΟ



Te

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ix,

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TABLE

OF

CONTENTS

P

age

SE

CTIO

N

1



S

PE

CI

F

ICATIO

N

1-1

SE

CTIO

N 2



O

PER

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NFO

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M

ATIO

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2-1

SE

CTIO

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3

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CI

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D

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SC

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I

P

TIO

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3-1

SE

CTIO

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4

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M

AI

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EN

A

NC

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4-1

I

n

t

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PREVEN

TI

VE

M

AI

N

T

ENANC

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

4-1

Ge

n

eral



4-1

Clea

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g



4-1

Lubr

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V

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I

n

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

4-1

T

r

a

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nd

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4-1

R

ecal

ib

r

atio

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4-1

TR

O

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S

H

OOTI

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

4-2

I

n

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4-2

T

r

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Equ

i

pm

e

n

t



4-2

T

r

o

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ooti

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Aids

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4-2

Access

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Ci

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it

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oa

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

4-2

R

emovi

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t

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V

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P

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a

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ee

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Amplifie

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B

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

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Re

m

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e

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V

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P

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om

Cam-Switc

h

Assem

b

ly



4-6

Cam

Switc

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R

e

p

ai

r

a

nd

R

e

p

laceme

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

4-6

R

e

m

oval of

Sto

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Co

mp

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m

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S

h

iel

d

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

4-8

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ig

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4=8

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e

m

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Compartme

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R

e

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en

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of

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iel

d

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

4-10

SE

CTIO

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5



PERF

O

RM

A

NC

E

CHEC

K

/AD

JUST

MEN

TPR

OC

ED

URE



5-1

I

n

tro

du

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5-1

Services

Availa

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le



5-1

Test

Equ

i

p

me

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t

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e

qu

i

r

ed

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P

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A

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5-12

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CTIO

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6



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A

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ICA

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SE

CTIO

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7

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S

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ANG

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I

NF

O

RM

ATIO

N

178

Service

178

Service

Fig

.

1-1

.

178

Linear

Integrated

Circuit

Test

Fixture

.

SPECIFICATION

Sectio

n

1-178

Service

Int

r

od

u

ctio

n



Th

e

vertical d

eflectio

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factor

switc

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as

28

positio

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s

r

a

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fr

o

m

50

ρ

/Div

to

50

m/Div

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un

mag

n

ifie

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)

in

a

1-2-5

se

q

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All

28

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eu

se

d

for

cu

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t

T

he 178

L

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IC Test

F

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is

α

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

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eme

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ts,

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r

a

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f

r

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10

μ

/Div

to

50

use

wit

h

t

he

577-D1

or

577-D2

Curve

T

r

ace

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m

s

.

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he



m

/Div

ca

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use

d

fo

r

voltage

meas

u

reme

n

ts

.

Any

attem

p

t

577-178

combi

n

atio

n

,

wit

h

t

h

e

D1 Dis

p

lay

Un

it

module,

is



to

m

eas

ur

e voltage

u

si

n

g

vertical

d

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n

factors

less

design

ed

to

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e

t

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r

a

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ete

r

s

of

o

pe

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atio

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al



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h

a

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)

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TS

indicator

am

p

lifiers,

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lig

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t

to

t

u

r

n

off,

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d

icati

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g

an

u

nusab

le

switc

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position

.

regulators

.

T

he

D2

Disp

lay

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it

may

be

use

d

,

but

lac

k

i

ng

d

is

p

lay

storage,

t

he

r

esults

may

n

ot

b

e

satisfactory

b

ecause

of

t

h

e

low

fre

q

ue

n

cies

n

ecessary

to

test

m

any



Vertical

d

eflection

factor

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ncreasedby

te

n

w

hen

t

he

devices

.



V

ertical

P

OSITIO

N

Χ

10

VER

T

M

AG

kn

ob

on

t

he

577

is

pu

lle

d

to

t

h

eo

u

twa

rd

position

;

t

he

i

ncrease

is

in

d

icate

d

by

t

h

e

lamp

b

e

h

i

nd

t

h

e

VER

T

UN

ITS/DI

V

k

nob

sk

irt

.

T

h

is

The

178

L

i

near

IC

Test F

ixt

ur

e

feat

ures

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swee

p

lam

p

also

tur

ns

off

if

an

u

nusable

switc

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p

ositio

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,

p

ositive

a

nd

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egative

s

upp

lies,

p

a

rt

of

t

he



selected

.

vertical

meas

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ri

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system, α

fee

db

ac

kloop

for

t

h

e

Device

Und

er

Test

(D

U

T),

a

nd

switc

h

i

n

g

ca

pa

b

ilities

to

facilitate

testi

ng

of

vario

u

s

paramete

r

s

und

er

d

iverse

co

nd

itio

ns

.



ΑFUN

CTIO

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selecto

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switc

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ovi

d

es

eleven

test

p

ositio

ns

.

All

p

ositio

n

s

a

r

e

usef

u

l

to

test

o

p

e

r

atio

n

al

amplifie

r

s

.

T

he

swee

p

ge

n

erator

provi

d

es

α

varia

b

le

freq

u

e

n

cy,

0

.01

H

z

to

1

kH

z

sin

u

soi

d

al

o

u

tp

u

t

.

T

h

is

o

u

t

pu

t

is

use

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to

force

t

he

D

U

T

o

u

t

pu

t

orthe

positive

a

nd

negative

su

p

p

lies



H

orizontal

deflection

facto

r

s

range

from

50

mV

/Div

to

(eit

he

r

in-p

h

ase

or

o

u

t-of-p

h

ase),

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to

swee

p

t

he

D

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T



200

V

/Div

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n

magnified),

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nd

a

r

e

selecte

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r

o

m

t

he

i

np

uts

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

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LLE

CTO

R

V

O

L

TS

seg

m

en

t

of

t

he

577

H

O

R

IZ

V

O

L

TS/DI

V

switc

h

.

The

do

voltage

levels

of

b

ot

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ositive

an

d

negative

su p

plies

are

i

nd

epen

d

en

tly

adju

sta

b

le

fr

om

0

to

30

volts

.

T

he

n

egative

s

upp

ly

am

p

lit

ude

can

b

e

m

ad

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to

t

r

ack

(

h

ave

t

he

same

a

b

sol

u

te

val

ue

as)

t

h

ep

ositive

su

pp

ly

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litu

d

e

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he

maxim

u

m

cu

r

r

e

n

t

ca

pa

b

ility

of

t

h

e

p

ositive

a

nd

n

egative

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u

pplies

can

b

e

limite

d by

p

oten

tio

m

ete

r

s on

t

he

D

U

T

ca

rd

.

If

t

h

e

loa

d

c

u

r

r

en

t

atte

mp

ts

to

excee

d

t

h

e

set

li

m

its,

t

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e

su

pply

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rre

n

t

limits

a

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lam

p

fo

r

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h

sup

p

ly

i

n

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t

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e

co

nd

itio

n

.

Any

pair

(of

fo

u

r

p

airs)

of

i

n

te

rn

al

sou

r

ce

r

esistors

can

be

use

d

in

series

wit

h

t

he

am

p

lifie

r

i

np

uts

.

A

n

y

value

of

exte

rn

al

sou

r

ce

r

esista

nce

can

b

e

a

dd

ed

to

t

h

eDUT

ca

r

d

.

T

h

e

D

U

T

out

p

ut

can

be

loa

d

ed

wit

h

one

of

sevenvalues

of

inter

n

al

loa

d

r

esista

nce

.

Any

value of

exter

n

al

loa

d

resistance

can

b

e

a

d

de

d

to

t

h

eD

U

T

card

i

n

pa

r

allel

wit

h

t

he 50 k

Ω

of

r

esista

n

ce

pr

ovi

d

ed

on

t

h

e card

.

T

he

vertical

m

eas

u

rement

system

is

ca

p

able

of

measur-

i

n

g

eit

he

r

voltage

or

cu

rrent

.

T

h

ec

h

oice

of

voltage

or



T

he

store

d d

isplay

on

t

h

e

D1 Disp

lay

U

nit

is

erased

cu

rr

en

t

m

easu

reme

n

t

is

d

etermi

n

ed

by

t

he

p

ositio

n

of

t

he



w

h

e

neve

rt

he

FUN

CTIO

N

switch

is

changed

,

exce

p

t

w

hen

FUN

CTIO

N

switc

h

a

nd

is

i

nd

icated

by

t

h

e

AMP

S

or



switc

h

i

ng

b

etween

+I

NPUT

Ι

an

d

-I

NPU

T

Ι,

+

PS

RR

and

V

O

L

TS

lamp

.



-P

S

RR,

and

+S

UPPL

Y

Ι

a

nd

-S

UPPL

Y

Ι

.

T

he

Sta

nd

ard

Op

Am

pcar

d

can

b

e

u

sed

to

test

si

n

gle,

du

al,

andqua

d

ope

r

atio

n

al

am

p

lifiers

.

It

can

also

b

e

use

d

to

test

si

ngle a

nd du

al

comparators

an d d

ifferential

a

mp

lifiers

.

R

eg

u

lator

card

s

are

u

se

d

to

test

t

hr

ee-terminal

reg

u

lator

p

arameters

.

T

hese

r

eg

u

lator

cards

a

r

e

optio

n

al

accesso

r

ies

a

nd

a

r

e

cove

r

ed

on

se

p

arate

d

ata

sh

eets

.

IC

soc

k

et-

p

in

config

u

rations

m

u

st

be

connecte

d

to

t

hecards

b

y

u

si

nga

da

p

ter

soc

k

ets

an

d p

atc

h

co

r

ds

.

An

offset

Z

ER

O

bu

tto

n

provides

αzero

crt

display

reference

an

d n

ulls

offset

voltage

fo

r

certai

n

m

easu

r

e

m

en

ts

t

h

at

would

ot

he

r

wise

be

off

sc

r

een

.

Offset

is

usually

r

eset

auto

m

atically

w

h

en

t

h

e

setti

ng

of

t

he

FUN

CTIO

N

switc

h

is

chan

ge

d

.

Offset

must

b

e

r

eset

ma

n

ually

w

hen

switc

h

i

n

g

b

etwee

n

1

a

nd

.5

mV

/DI

V

a

nd

betwee

n

.1

mV

and

50

μ

V

/DI

V

.

S

p

ecification-178

Service

The

elect

r

ical

cha

r

acteristics

i

n

t

he

followi

n

g

table

are



Items

listed in

t

h

eP

erfo

r

ma

nce

R

eq

u

ire

m

e

n

ts

col

u

mn

vali

d

only

if

t

h

e

i

n

str

u

ment

h

as b

ee

n

calibrated

at

an



of

t

he E

lect

r

ical

C

ha

r

acte

r

istics

are

verifie

d

by

com

p

leting

am

b

ie

n

t

tem

pe

r

at

ur

e

b

etween

+20°

C

an d

+30°

C,

and

t

he



t

h

eP

erformance

C

h

ec

k

i

n

t

h

is

ma

nu

al

.

Items

liste

d

in

t

he

i

n

st

r

ume

n

t



is



o

p

erati

n

g

at

an



am

b

ient

tem

p

erature



S

upp

leme

n

tal

I

n

fo

rm

atio

n

column

a

r

e

n

ot

ve

r

ifie

d

in

t

h

is

b

etwee

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O'

C

a

nd

+50

0

C

(

u

nless

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herwise

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ote

d

)

.



m

a

nu

al

;

t

hey are

eit

h

e

r

exp

la

n

atory

notes o

r

pe

r

forma

nce

ch

aracteristics

fo

r

w

h

ic

h

no

limits

are s

p

ecifie

d

.

V

ertical

Deflection

Facto

r

s

I

npu

t

C

u

rrent

(

Ιη



50 ρΑ

/DI

V

to

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nα

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se

+I

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t

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ue

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ag

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F

un

ctio

n

s

Accu

r

acy'

V

oltage"

C

h

aracteristic

C

MRR

Fun

ction

Accu

r

acy

PS

RR

Fu

nctio

n

Accuracy

Ta

b

le

1-1

ELE

CT

R

ICA

L

C

HA

R

ACT

ER

ISTICS

P

erformance

R

e

q

ui

r

eme

n

t

5

ρΑ

/DI

V

to

20

μΑ

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V

wit

h

10

Χ

m

ag

n

ifier

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.

W

it

h

in

t3°/

ο

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ρΑ

,

u

n

mag

n

ified

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it

h

i

n

t4°/

ο

±50

ρΑ

w

it

h

10

Χ

m

ag

n

ifie

r

on

.

10

μ

V

/DI

V

to

50

m

V

/DI

V

i

n

α

1-2-5

se-

quen

ce,

un

mag

n

ified

.

1

μV

/DI

V

to

5

mV

/DI

V

with 10

Χ

mag

n

ifier

on

.

GAI

Na

nd

O

FF

S

ET

V

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it

h

i

n

f3°/

ο

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u

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n

ified

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f4°1

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h 10

Χ

F

un

ctions

Acc

ur

acy'



~

m

ag

n

ifie

r

on

.

Within

±3°

k

+



G~

ΟΟΚ

Κ



%+150

μ

V

Ν

.

Within

±4°/

ο

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

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αΊη

0

Κ

Κ

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°

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1

Κ

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,

.

wit

h10

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m

ag

n

ifier

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μV

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V

to

5

μV

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V

,

see

foot

n

otes

b

a

nd

ε

)

.

W

it

h

i

n

t3°/

ο

+



100

Κ



°/

ο

Gain

-

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W

it

h

i

n

t4°/

ο

+



100

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

%

with

10

Χ

Gai

n

-

Κ

mag

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ifie

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V

to

5

μ

V

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V

;

See

foot

n

otes

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an

d

ε

)

.

'Acc

ur

acies

a r

e

t

he

h

ig

h

est

p

erce

n

tage of

on-screen

val

u

es

.

'V

ertical

m

ag

n

i

ficatio

n

is

not

r

eco

mm

ended

fo

r

.5

m

V

/DI

V

t

hr

oug

h

50

mV

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V

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ifle

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setti

n

gs

.

S

u

p

p

le

m

e

n

tal

I

n

fo

rm

atio

n

`D

U

T

gai

n

w

it

hs

m

all

voltage

sig

n

al

o

u

t

n

ea

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ze

r

o

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h50 k

Ω

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o

r

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m

V

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1

m

V

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Κ

=100

fo

r

.5

m

V/D

i

v

to

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and

Κ

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r

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V

c

m

=Common-

mode

voltage

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Cu

rr

en

t

V

oltage

Cu

rr

en

t

Am

p

lit

ude

C

h

aracte

r

istic

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owe

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Supp

ly

Cu

rr

en

t

Curre

n

t

M

od

e

Accuracy'

Collector

Su

pply

Curre

n

t

M

od

e

Acc

ur

acy'

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ositive

a

nd

N

egative

S

u

p

p

lies

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r

acy

Swee

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Ge

ne

r

ato

r

Fr

eq

ue

n

cy

Accuracy

In

O

FF

SE

TAN

D

GAI

N

Fun

ctio

ns

Commo

n

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d

e

V

olt-

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i

n

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an

d

C

MRR

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ctions

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Supp

ly

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n P

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RR

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nd

S

UPPL

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F

u

n

ctions

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At

least

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mA

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erfo

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ma

n

ce

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e

qu

ireme

n

t

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ηΑ

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V

to

50

mA/DI

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α

1-2-5

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qu

e

n

ce,

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.

0

.1

ηΑ

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V

to

5

mA/DI

V

wit

h 10

Χ

mag

n

ifier

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.

W

it

h

in

t3°/

ο

t1

ηΑ

u

n

mag

n

ifie

d

;

+4

ο/ο

t1

ηΑ

wit

h

10

Χ

mag

n

ifie

r

on

.

1

ηΑ

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V

to

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mA/DI

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α

1-2-5

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qu

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ce,

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d

.

0

.1

ηΑ

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5

mA/DI

V

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10

Χ

magnifier

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.

W

it

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i

n

±3°

k

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ηΑ

,

u

nmagnified

.

±4%

t1 ηΑ

wit

h 10

Χ

m

ag

n

ifie

r

on

.

A

dju sta

b

le

from

0

to

30

V

.

W

it

h

i

n

t2°/

ο

±100

mV

.

0

.1

Hz

to

1

kH

z, si

n

usoi

d

al

sig

n

al

.

F

ive

r

an

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0

.1,

1,

10,

100,

and

1000

H

z

wit

h

Χ

.1

to

Χ

1

va

r

iable

.

Wit

h

i

nt5°/

ο

in cali

br

ate

d

(

Χ

1)

positio

n

.

0

V

to

30

V

t3°/

ο

maximu

m

peak

.

In

t

h

e

1

m

V

/DI

V

to

50

m

V

/DI

V

ranges,

t

he

values

a

r

e 10

ο

/

ο

lowe

r

.

'Accu

r

acies

a

r

e

t

he

h

ig

h

est

pe

r

cen

tage

of

on-screen

val

u

es

.

Ta

b

le

1-1

(co

n

t)

ELE

CT

R

ICA

L

C

H

A

R

ACT

ER

ISTICS

S

p

ecificatio

n

-178

Se

r

vice

Su

pp

le

m

e

n

tal

I

n

format

i

on

B

ot

h

s

upp

lies

εαη

b

e

a

dju ste

d

from

t

he

+SUPPL

Y

co

n

tr

ol

.

N

egative

su

p

p

ly

can

be

in

d

epen

d

ently

a

dju

sted

usi

n

g

t

he υη

-

cali

b

rate

d

-SUPPL

Y

cont

r

ol

.

T

h

e-S

UPPL

Y

voltage

is

wit

h

i

n

f1

ο/ο

(abso-

l

u

te)

of

the

+S

UPPL

Y

voltage

w

hen

t

he

-SUPPL

Y

co

n

t

r

ol

is

i

n

t

h

eTR

AC

K

+S

UPPL

Y

position

.

Ad

j

ustable

cu

rr

e

n

t

limiti

ng

.

Ra

n

ges

overla

p

at

Χ

.1

en

d

of

va

r

ia

b

le

.

A

dju sta

b

le

from

O

V

to

30

V

t3°/

ο

maxi

m

u

m

Ad

j

ustable,

de

p

en

ds

on

f

un

ction

.

T

he

voltage

pea

k



s

hould be

limited

to

t

h

e

out

p

ut

cap

ability

of

t

he

D

U

T

.

L

imite

d

to

t

he

powe

r

s

u

pply

voltages

(clip

pe

d

)

See

P

ositive

and

N

egative

Su

pplies

T

he

Ge

n

eratoro

u

t

pu

t

may

b

e

man

u

ally

set

to

any

do

level

(

un

cali

b

rate

d

)

wit

h

i

n

its

ampli-

t

ud

e

range

(

d

epen ds

on

t

he

setti

ng

of

t

he

FUN

CTIO

N

switc

h

) .

Sp

ec

i

ficat

i

on-178

Service

Ta

b

le

1-1

(co

n

t)

ELE

CT

R

ICA

L

C

HAR

ACT

ER

ISTICS

C

ha

r

acteristics



P

erforma

n

ce

R

eq

uire

m

en

t



S

upp

le

m

e

n

tal

Info

r

mat

i

on

So

u

rce

R

esista

nce

R

esista

n

ces



I



I



F

ou

r

p

ai

r

s

;

50

Ω

,10 k

Ω

,

20

k

Ω

,

a

n

d

50

k

Ω

.

Tolerance



Ι



Ι

f1°/

ο

±10

Ω

.

L

oa

d

R

esista

n

ce

Wh

en

t

he

VER

T

UN

ITS/DI

V

switc

h

is

setto

1

m

V

/DI

V

t

hr

oug

h

50

mV

/DI

V

,

t

h

e

i

nd

icate

d

val

u

es

i

n

crease

by

500

Ω

.

Exte

rn

al

resis-

tors

ca

n

be

use

d

.

R

esista

n

ces



Seve

n

R

esistances

;100

Ω

,1

k

Ω

,

2

k

Ω

,

5 k

Ω

,

I



~



10

k

Ω

,

20

k

Ω

,

an

d

50

k

Ω

.

Tolerance



f3°/

ο

except

w

h

en

usi

n

g

t

he

50

m

V

,

20

m

V

,

a

nd

10

mV

p

ositions

of

t

he

VER

T

UN

ITS/DI

V

switch

.

T

h

e

tolerance

fo

r

t

h

e

50 k

Ω

t

h

e

n b

ecomes±30%,

fo

r t

h

e

20

k

Ω

±14%,10

k

Ω

t7"/

ο

,

an

d

5

k

Ω

f3°/

ο

w

he

n

t

h

e

D

U

T

out

p

ut

voltage

swin

g

is

2

.5

V

o

r

less

.

T

he

m

axi

m

u

m

tolerancedecreases ex

p

o-

n

e

n

tially

as

t

he

ou

t

p

ut

swing

is

i

nc

r

eased

a

nd

is

less

t

ha

n

t3°/

ο

w

h

en

t

he

out

p

ut

is

swin

gi

n

g

±30

volts

.

Ta

b

le

1-2

ENV

I

R

O

NMEN

TA

L

C

HA

R

ACT

ER

ISTICS

C

h

a

r

acte

r

istic



P

erformance

R

eq

ui

r

e

m

e

n

t



Ι



S

u

ppleme

n

tal

Tem

p

eratu

r

e

S

p

ecified

O

pe

r

ati

ng



Ι



Ι



+10°

C

(+50°

F)

to

+40°

C

(+104°

F)

U

sef

u

l

O

pe

r

ati

ng



Ι



Ι



0°

C

(+32°

F)

to+50°

C

(+120°

F)

Non-operating



Ι



Ι



-40°

C

(-40°

F)

to

+65°

C

(+149°

F)

.

Altitu

d

e

Operatin

g



Ι



Ι



To

10,000

feet

(3000

metres)

Tra

n

sportatio

n

12-i

n

ch (30

cm)

p

ack

age

d

rop

.

Qualified

u

nd

e

r

t

he

N

atio

n

al

Safe

Tra

n

sit

Co

mm

ittee

pr

oce

du

re

1

Α

.

Di

m

ension

s

H

eigh

t

W

i

d

t

h

De

p

t

h

W

eig

h

t

N

et

Table

1-3

PH

YSICA

L

CH

AR

ACT

ER

ISTICS

4

.5

i

nches

(11

.4

cm)

7

.9

i

nches

(20

.1

cm)

7

.8

inc

hes

(19

.8

cm)

3

.3

p

ounds

(1

.5

k

g)

STA

N

DA

R

D

ACC

E

SSO

R

I

E

S

R

efer to

t

he

R

ep

laceable

M

ech

a

n

ical

P

arts

list

fo

r

α

listi

ng

of

t

h

e

sta

n

da

r

d

accessories

.

S

p

ecificatio

n

-178

Service