Tektronix 2235 Manual de usuario

I~ro

2235

AN/USM-488

OSCILLOSCOPE

PER

ATO

ΙΝ

CT1

MANUAL

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ix,

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ber

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ational

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tronix

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ITT

ELLEN

PLE

ATIO

THE

2235

AN/USM=488

OSCILLOSCOPE

PER

ATO

CTIO

rinti

1984

Revised

ΜΑΥ

1986

1984

Tektronix, Inc

All

rights

reserved

Contents

this

publication

may

not

be reproduced

any

form

without

the

written

permission

Tektronix,

Inc

Products

Tektronix,

Inc

and

its

subsidiaries

are

covere

foreign

patents

and/or

pen

ing

atents

TEKTRONIX,

ΤΕΚ

SCOPE-MOBILE,

and

are

egistere

tra

emarks

Tektronix,

Inc

TELEQUIPMENT

registere

trademark

Tektronix

Limited

rinte

.S .A

Specification

and

price

change

privileges

are

eserve

NSTRUMENT

SERIAL

NUMBERS

Each

instrument

has α

serial

number

on αp

anel

insert,

tag,

stamped

the

chassis

The

first

number

letter

designates

the

country

manufacture

The

last five

igits

the

serial

umber

are

assigned

sequentially

and

are

unique

each

nstrument

Those

manufactured

the

nited

States

have

six u

nique

digits

The

country

manufacture

identified

follows

ΒΟΟΟΟΟΟ



Tektronix,

Inc

eaverton,

Oregon,

100000



Tektronix

Guernsey,

Channel

Islands

200000



Tektronix

United

Kingdom,

ondon

300000



Sony/Tektronix,

apan

700000



Tektronix

olland,

NV, H

eerenveen,

The

etherlands

ere

certify



2235

ΑΝ

-488

OSCI

OSCO

D A

NSTA

LLE

TIO

com

lies

wit

Interference

Sup

ression

irements

Amtsbl

1046/1984

Germa

ostal

Service

was

notified

hat

uipment

eing

mar

eted

German

Postal

Service

has

rig

re-test

series

and

verify

com

lies

EKTR

esc

einigung

des

Herstellers/Im

orteurs

Hiermit

wind

besc

einigt,

αβ

er/

ie/das



2235

ΑΝ

-488

OSCI

OSCO

D A

STA

LLE

TIO

Ubereinstimmung

mit

den

estimm

ngen

der

Amtsblatt-

erfug

1046/1984

unk

entst

ist

Der Deutsc

espost

wurde

das

Inver

ringen

dieses

Ger

tes

a n

gezeigt

und

die

erec

tigung

zur

llber

ruf

ng der

Serie

auf Ein

alten

der

estimm

unge

einger

umt

TEKT

NOTIC

user/operator

NWE

IS fUr

den

enutzer/

NOTIC

user/o

erator

NWE

fUr

den

enutzer/

etrei

Certificate

anufactu

er/Im

orte

German

Postal

Service

uires

h at

Systems

assemble

e o

erato

/user

instr

ment must

also

com

with Postal

Regulation,

1046/1984,

Par

Sect

Die

vom

etrei

zusammengestellte

Anlage,

inner

alb

erer

dies

Ger

eingesetzt

wir

υβ

enfalls

oraussetzungen nach

Par

2, Ziff

der

1046/1984

genugen

The

German

Postal

Service

uires

ment,

used

test

setup,

may

only

erated

ements

Postal

Regulation,

1046/1984,

Par

Sect

are

com

lied

wit h

Dies

Ger~t

art

e8aufbauten

nur

etrie

ben

wer

en,

wenn

die

aussetz

ngen des Par

Ziff

der

1046/1984

einge

alten

werden

IST

ILLUSTRATIONS



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

. .



Section 3



OPERATING

CONSIDERATIONS

IST

TABLES



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

. .

...

. .



GENERAL

OPERATING

INFORMATION



3-1

OPERATORS

SAFETY

SUMMARY



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



iii



GRATICULE

......

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



3-1

GROUNDING

......

...........

3-1

SIGNAL

CONNECTIONS



.........



3-1

INPUT

COUPLING

CAPACITOR

Section

GENERAL

INFORMATION



PRECHARGING



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

3-1

OPERATOR'S

CHECKS

AND

INTRODUCTION

...

.....

...

1-1



ADJUSTMENTS

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

3-3

SPECIFICATION

.....

..........

1-1



INTRODUCTION

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

3-3

TRACE

ROTATION

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

3-3

PROBE

COMPENSATION



........



3-3

VERTICALDEFLECTION

CHECK

. .

3-4

Section 2

PREPARATION

FORUSE

BLE

Page

2235

ΑΝ

/USM-488

Operators

Section 4

OPERATING

PROCEDURES

FIRST-TIME

START



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

2-1



INSTRUMENT

FAMILIARIZATION

....

4-1

SAFETY

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

2-1



INTRODUCTION

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

4-1

INE

VOLTAGE

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



2-1



ASELINE

TRACE

.........

.....



4-1

POWER

CORD

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



2-1



DISPLAYING

SIGNAL

.....



4-2

INE

FUSE



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



2-1



ASIC

APPLICATIONS

........

.....



4-7

INSTRUMENT

COOLING

.........



2-2



INTRODUCTION

...........

.....



4-7

ONG-TERM

CARE

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



2-3



INDEX

Τ0

ASIC

APPLICATION

NSPECTION

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

2-3



PROCEDURES

......

. .

...

.....

4-7

CLEANING

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

2-3



OLTAGE

MEASUREMENTS

.....

4-7

CALIBRATION

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



2-3



NONDELAYED

TIME

STORAGE

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

2-3



MEASUREMENTS

. .

...

.....

4-10

INSTRUMENT

REPACKAGING

....

2-3



TELEVISION

DISPLAYS

..........

4-13

CONTROLS,

CONNECTORS

AND



DELAYED-SWEEP

MAGNIFICATION



4-14

INDICATORS

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



2-5



DELAYED-SWEEP

TIME

DISPLAY

AND

POWER



..........



2-5



MEASUREMENTS



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



4-16

VERTICAL

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

2-5

HORIZONTAL

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



2-7



Section s

OPTIONS

AND

ACCESSORIES

TRIGGER

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

2-8

REAR

PANEL

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

2-9



CHANGE

INFORMATION

2235

ΑΝ

/USM-488

Operators

LIST

LLU

ATIO

The

2235

Oscilloscope

......

.....

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

...........



viii

1-1



aximum

input

voltage

frequency

derating

curve

for

and

ΕΧΤΙΝΡ

UΤ

connectors

......

...........

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

...

.....



1-6

1-2



Physical

Dimensions

the

2235

Oscilloscope



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

.....



1-9

2-1



Optional

ower

cords



.......

...........

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

.....



2-1

2-2



Fuse

older

and

power

cord connector



....

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

.....



2-2

2-3



Power

and

display

controls

and

indicator

...

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

.....

......



2-5

2-4



ertical

controls,

connectors,

and

indicators

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

...

......



2-6

2-5



orizontal

controls

and

indicator



.........

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

....

.....



2-7

2-6



Trigger

controls,

connector,

and

indicator



. .

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

....

......



2-8

2-7



Rear-panel

connector

. .

...

.....

. .

....

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

...

. .

.....



2-10

3-1



Graticule

measurement

markings

.........

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

.....



3-1

3-2



Probe

compensation

. .

....

.....

. .

....

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

.....



3-3

4-1



Initial

setup

for

instrument

familiarization

procedure



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

....



4-2



Peak-to-peak

waveform

voltage

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

....

...........



4-8

4-3



Instantaneous

voltage

measurement



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

...........



4-8

4-4



Common-mode

rejection

. .

.....

...

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

.....



4-9

4-5



oltage

ratios

. .

....

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

.....

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

4-10

4-6



Time

atio



.....

....

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

...........



4-11

4-7



ise

time

....

. .

....

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

...

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



4-11

4-8



Time

ifference

etween

pulses

time-relate

signals



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

...........



4-12

4-9



Phase

difference

. .

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

...........



4-13

4-10



High-resolution

hase

difference

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

...

.....

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



4-13

4-11



Delayed-sweep

magnification

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

.....

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

4-15

4-12



Pulse

itter

. .

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

....

. .

.....

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



4-16

4-13



Time

difference

single

waveform

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

.....

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



4-16

4-14



DELAY

TIME

POSITION

control

settings

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

.....

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



4-17

4-15



Rise

Time,

differential

time

method

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

.....

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



4-18

4-16



Time

difference

between

two

ulses

two

time-related signals



...

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



4-19

IST

BLE

1-1



Electrical

Characteristics



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

.. .

. .

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



1-2



Environmental

Characteristics



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

....

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



1-7

1-3



Physical

Characteristics



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

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



1-8

2-1



External

Inspection

Checklist

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

....

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

2-3

2-2



Composite

Trigger

Source



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

....

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



2-7

4-1



ment

equired

for

Instrument

amiliarization

Procedure



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



4-1

PER

ATO

UMM

The

gene

safety

info

mation

this

part

he s

mmary

both

operating

and

servicing

ersonnel

Specific

warnings

and

cautions

will

oug

hout

manual

ere

apply

not

app

ear

this

summa

Manual



Gro

und

ing

Pro

uct

2235

ΑΝ

-488

erators

TIO

statemen

ide

tify

conditions or

practices



oduct

grounded

he gro

nding

con

ucto

cou

res

amage

ment

or ot

property



power

avoid

electrical

hock

power

cord

into

ope

ece

tacle

befo

connecting

pro

uct

inp

termi

als

protective

ground

statements

identify

conditions or

ractices



conn

ection by

way

e grou

nding

con

ctor

owe

coul

res

sonal

ury

loss

life



essen

tial

safe

eration

onEq



Danger

Arising

oss

und

TIO

indicates

sonal

ury

azar

not

imme



loss

rotective-gro

und

connection,

all

accessi-

ately

accessi

one

eads

mar

gs,

azard



con

ctive

arts

cludi

obs

controls

may

operty,

incl

ing

he equipmen

itself



ear

ins

lating)

can

ren

elect

shoc

icates

son

aza

imme

iately



ope

owe

Cor

accessi

one

rea

Use

only

owe

d an

conn

ector

ecified

for

product

Symbols

Manual



only

owe

good

condition

symbol

indicates

here app

lica

cautio

r i

matio

fou

maxim

voltage

see Ta

1-1



detailed

info

mation on

ower

cords and

connectors

see F

2-1

Symbols

ark

edon

uipment

voltage

rotective

gro

(eart

)

terminal

ATTENTION

efer

Proper

use

avoid

fire

azard,

use

only

use

correct type,

voltage

ati

and

cur

ent

rati

ecified

arts

list

for

erate

xplosive

Atmosp

eres

avoi

losio

erate

roduct

nan exp

lo-

sive

atmosp

ere

nless

has

een

ecifically

tified

ower

Source



suc

eration

roduct

tended

ate

from α

owe

source

does

apply

250

volts

betwee



emove

Cove

Pan

els

uctors or

etwee

eit

sup

ply

con

ctor

and

ground

protective

ground

connection

way



avoi

personal

ury,

remove

oduct

covers

ground

ing

condu

ctor

ower

cord

essential

for

safe



panels

not

erate

oduct

wit

hout

t h

cove

ope

atio



and

panels

properly

installed

2235

ΑΝ

-488

Ope

ators

The

2235

Oscillosco

4976

ENER

ATIO

CTIO

2235

Oscilloscope

rugged,

lig



inst

ume

n t

wit

following

stan

weig

dual-c

annel

100-

instr

ment

at features



accessories

rig

defined trace

80-

100-mm

cat

ray

ube

(crt)

Its

tical

system

supp

lies

calib

ated

deflec-



erators

manual



ΒΝ

Male

ing

post

Service

ual



Protective

front-panel

factors

from

division



panel

cover

210

Probe

Trigger

circ

its

ena

sta

triggering

over

full



pack

ages



Accesso

Pouc

Probe

widt

vertical

system

orizontal

system

provi



pack

age



iewi

Hoo

cali

rate

swee

eeds

f r

division

50 ns p



Power

cor

2

Gra

er tips

division,

along

wit

delaye

-sweep

feat

res



X10

magni-

fier

cuit

extends

maximum

sweep

speed

5 ns per

ivisio

hen

and

ΒSE

C/DI

switc

set

.05

μs



Accesso

Pouc

attac

ment,

refer

instr

ment

per

division



αq

ualified

vice

son

procedu

cove

service

man

followi

elect

ical

cha

acte

istics

(Table

1-1)



onmental

acte

istics

are

give

n Tab

1-2

vali

for

2235

hen

has

bee

n ad

usted

ambient

2235

meets

eme

MIL-T-288000,

arag

aphs

temperat

etween

+20°C

and

+30°C,

warm-



.5 .1

.3,

.4,

.2 .2

for

Typ

ΙΙΙ

Class 5

perio

of at

least

min

tes,

and

operating



ment,

exce

ere

erwise

note

ambient

tem

erature

betwee

0°C

+50°C

(unless

erwise

ote

) .

Items

liste

erformance

eme

ts"

colum

are

verifiable

ualitative

uantitative

limits,

ile

items

liste

he "S

upp

lemen

tal

formation"

col

are

eit

explanatory

notes,

cali

ration

setu

descriptions,

erfo

mance

aracteristics

for

absolute

limits

eci-

fie

cha

acte

istics

im pr

actical

check

ICATIO

Sectio

1-2235

ΑΝ

-488

ators

part

num

ers

and

er info

matio

about

both

stan

ard

and

optional

accessories,

refer

"Op

tio

and

Accessories"

section

(Section

man

Your

tro

resentative,

local

tronix

ield

Office,

tronix

uct

catalog

also pr

ovide

accesso

ies

information

ysical

aracteristics

instr

ment

are

listed

n Ta-

ble

1-3

rmation-2235

ΑΝ

-488

ato

Deflection

actor

ange

LTS/DI

aria

Cont

Step

esponse

ise

Time

0°C

+35°C

per

Division

Abe

ations

ositive-Going

Ste

Division

per

Divisio

widt

(-3

)

0°C

+35°C

per

Divisio

Division

Accu

acy

+10°C

+35°C

0°C

+50°C

Divisio

+35°C

+50°C

per

Divisio

Division

per

Division

Divisio

+35°C

+50°C

per

Divisio

Division

per

Divisio

ple

owe

imit

widt

h L

imite

ode

Switch

ing

ate

Inp

acteristics

esistance

Capacitance

acteristics

ise

calc

late

form

ise

Time



.35

and

(-3

)

Table

1-1

lect

ical

acte

istics

VER

TICA

EFLE

CTIO

SYST

ivision to

per

division

nα

1-2-5

sequence

+2%

uously

iable

etween

settings

. I

eases

deflection

factor

least

less

πs

less

πso

less

+4°/

-4%,4%

+12%,-12%,

12%

to at

least

100

to at

least

MHz

to at

least

MHz

to at leat

MHz

less

-3

limits

(-3

and

pass

MHz

10%)

500

±30%

ΜΩ

±2°/ο

20pF

±2

erfo

eme

REV

1985

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