Tektronix 7603, R7603, R7CO3 Operator's Manual



f

n

Tektro

070-1310-00

ix,

Inc

tΡ.Ο.

.

Box

500

B

eaverton,

76

OSCI

O

SerialNumber

Oregon

Ο

3/

LL

PER

97005tPhone:

R

OSCO

ATO

7CO3

RE

R

S

644-0161t

Cables:Te

tronix

k

672

AllTEKTRONIXin

d

efective

qu

estions

withyou

materials
withr

especttothewa

rTEKTRON

and

WAR

RAN

TY

str

uments

wo

IXFieldEngin

are

rkm

anshipforon

r

ranty

warrantedagainst

e

year

o

s

h

ul

dbetaken

representative

eeror

Any

.

up

.

Allrequ

d

i

n
service
Numbe
service

S

Copyright

P

Contentsofthis
form

U.S.A

and

TEKTRONIX

estsforrepairs

irectedto

yourarea.This

ecifications

p

rinted

foreignpatentsand

theTEKTRON

.Please includetheinstrument

randSer

.

i

n t

withoutpermission

.

andforeig

ialNumberwithallre

pr

and

©

1972byTek

heUnited

pub

nTEKTRONIX'produ

α

registeredtrademarkofTek

is

and

replaceme

IXFieldOfficeorrepresentative

will assure

ice

change

privileges

tronix,Inc

StatesofAmerica.Allrightsreserved.

lication

maynotbereproducedina

ofTek

tronix,

/or

p

n

tspending:

ate

ntparts shouldbe

youthefastestpossible

Ty

peNumbe

quests

reserv

.,Beaverton,Or

Inc

.

cts

cove

r

or

forparts

egon

redby

U.S.

tronix,Inc

Par

t

or

.

ny

.

TABLE

OF

CONTENTS

OPERATING

INSTRUCTIONS



Page

Operating

Checkout



1-3

Controls

and

Connectors



1-4,1-5

Simplified

Operating

Instructions



1-7

General

Operating Information



1-9

SPECIFICATIONS

Electrical



2-1

Environmental

and

Physical



2-6

System

Specification



2-7

RACKMOUNTING

INSTRUCTIONS

Dimensional

Drawing



3-5

7603/137603

Operators

7603Features

T

heTEKTRONIX
applications.Thisinstrumenthasthr
completemeasurementsystem.The
Therightplug-incompartmentisconnectedtoth

p

l

u

g-incompartments

un

its

available

readout
sweep

system

rate,

etc

.

7603

Oscilloscopeisαsolid

allowsαmulti-trace

allowthissystem

ovi

de

to pr

be

encodedanddisplaye

can

R

α

C

eeplug-incompartmentsthatacceptTEKTRONIX7-series

twoplug-incompartmentsonthe

verticaldisplay.The

e

to

b

Tdisplayofalphanumeric

for

used

dontheCR

state,

light

weight

ehorizontaldeflectionsystem.Electronic

flexibilityofthis

many

measurement

informatio

T

.

instrument

leftar

app

lications.1

fromthe

n

designed

e conn

ectedtothever

l

p

u

η a

plug-i

n

g-i

dd

n

units.Datasuchasdeflection

forgen

eral-purpose

plug-inunitstoform

tical

deflectionsystem

switchi

featureandthevarietyofplug-i

n,theinstrumentcon

itio

betweenthe

ng

measuri

vertical

tains

factor,

ng

α

.

n

α

Thisinstr
smallspotsizeand
linevoltage
p

owercons

7603/137603

ument

featuresαlarge-screen,8Χ

fastwr

andfrequency,or

ump

tionisab

out

itingspeed.RegulatedDC

by chan

170

watts (60 h

10 d

ivision

display;eachd

powe

r s

upp

lies

gesintheloaddue tothevaryi

ertz,

115-voltline).

ivisio

n equ

als1.22

assureth

atper

formance

ngpowerrequirementsoftheplug-i

centimeters.TheCRTprovides

isnot

affecte

dbyvar

n un

its.M

iationsin

axi

mum

General

To

effectively

usethe7603,the

operationand

capa-

bilitiesoftheinstrumentmust

be kn

own.This

section

d

escribesthe op

erationoft

hefront-and

rea

r-p

anelco

n

t r

ols

and connectors

and

givessimp

lifie

d

a n

d

generaloper

ating

information.

O

p

eratingVoltage

T

hisinstrument

is

desig

ned

for

operationfromα

p

owerso

urce

with

its

neutral

at

or near

eart

h

(ground)

potential

with

αseparate

safety-eart

h

conductor

.

Itis

not

intended

for

operation

from

two

ph

asesofα

multί-ph

ase

system,oracrossthelegsofα

single-phase,thr

ee-wire

system

.

T

h

e

7603

can be op

eratedfrom

eitherα110-voltor

α

220-voltnominal

line-voltage

source,Inaddition,

t h

ree

operating

ranges

canbeselected

withineac

h nominal

line

voltage

source.Thevoltage-selectorjumperontheRectifie

r

b

oard(see

Fig.1-1)

allows

selectionoftheoperating

voltage.To

conver tthe

instrument

f rom

oneregulati

ng

range toanothe

r ,fir

stdisconnectthein

strument f romt

he

p

ower

source.T

hen,slide

outth

epowerunitasdescri

bed

inthe Maintenance

section.Removethevoltage-selecto

r

jumperan

d

r

e-installitontheset

of pinswhichrep

resent

thedesire

d

r

egulating range.Selectαrangewhich

is

centered

aboutthe

averagelinevoltage

to

w

hichthe

inst

rumentistobe connected

(see

Table

1-1)

.

TA

BLE

1-1

R

egulatingRange

andFuse

Data



Ungrou

nded(Lin

e)Br

own



Blac

k

G

r

o

unded(Neu

t

r

al)Bl

ue



Wh

ite

Pins



R

egulatingRange



G

rounding(Earthing)



G

reen-Yellow



G

r

een-Yellow

Selecte

d

110-volts

n

ominal220-voltsnominal

L

O

W

ME

D

Hl

L

ineFuse

REV.D,

OCT.197

6

O

PER

ATI

N

G

INST

RU

CTIO

N

S

PRELIMINA

RYINFO

RM

ATIO

N

W

A

RNIN

G

90to110

volts

99to121

volts

108to132

volts

3.2Α

slow-

blow

180to220

volts

198to242

volts

218to262volts

1.6Α

slow-

blow

Section1-7603/R7603

Operators

PowerCordConductor

Identificatio

n

Conducto

r



Ι

Colo

r

Fig.

1-1.Locations

of

voltage-selectorjumper,sp

are

jumper,and

A

LTFUSEin

powe

r u

nit

(7603

shown)

.

To

co

nve

r t f rom110-voltsto220-voltsnominallin

e

voltage,

or vice versa,removethe

voltage-selectorjumper

andreplace

it

withthesp

arejumper

(storedonpin

s

adjacentto

voltage

selector

area).Thejumper

s a recolo

r -

co

dedtoindicatethenominal

voltage

forwhichtheyare

inte

nded;

brownfor110-volt

nominal

operatio

nandred

for

220-volt

nominalop

eration.Changethelinefusetoprovi

de

p

r

otectionforthe

selectedn

ominalline

voltage.Usethe

fuse

locatedintheALTFUSE h

olderontheRectifier

b

oard(see

Fig.1-1)orsee

Table

1-1

for

value.

Also,

c

han

ge

theline-cordplugto

matc

hthe power-sou

rcereceptacle

or

useαsuita

blea

dapter

.

Alternate

Colo

r

The

7603

isdesignedtobe

use

d with αthr

ee-wire

AC

p

ower

system.If

αth

ree-totwo-wire

adapterisused

to

connectthisinstrumenttoα

two-wire

ACpowersystem,

be

O

p

e r

ating

Instructions-7603/R7603

Operators

s

ure

to connect

t

he g

r

oundleadof

thea

dap

ter

to ea

r t

h

wit

h

r

eal-time

amplifiers,

time-base

units,orcombinations

(gro

und

) .Fail

ure

to

complete

the g r

o

und system

mayallow



of

these

.Useofspecial

purposeplug-i

n u

nits

may

result

i

n

t

hech

assisofthis

inst

rum

enttobe

elevate

dab

ove

ground



d

ifferent types

of

displays,

whicharedefined

i

n

t

h

e

p

otential

and p

oseαs

hock h

azard

.



instructionmanuals

for

these

specialunits.Thefollowing

termi

nology

willbe

use

dthroughou

t thismanual

.

O

p

erating

Temperature

T

h

e

7603

canbe

operate

dwh

ere

the ambient

ai

r

tem

pe

r

ature

is

b

etwee

n

0°C

and+50°C.This

i

nstrument

ca

n be

stored

inambient

temperaturesbetween

-55°C

a

nd

+75°C.Afterstorageattemperaturesbeyon

d

t

heop

e r

ati

ng

limits,

allow

t

he ch

assis tempe r

aturetocome with

i

nthe

op

eratinglimitsbeforepowerisapplied

.

The7603iscooledby

con

vectionair

flow

through

t

he

instrument.Com

po

nen

ts

whic

h

requir

e

themost

cooli

ng

are

mountedexternallyonαheatrad

iatorat

therear

.

A

dequ

ate

clearancemust

be pr

ovided on

all

sidestoallow

h

eat

to

b

e

d

issi

p

atedf r

o

m

t

h

e

instrument.

Donotbloc

k or

r

estrict

the

air

flow

thro

ug

hth

eholesinthe

cabinet or

t

he

h

eatrad

iatoronthe

rear

.

M

aintain

theclearance pr

ovide

d

by

thefeetont

he b

otto

mand

allow

about

two

i

nch

es

clea

r a

n

ceonthetop,

sides,

a

nd

r

ear

(more

ifpossible)

.

T

he

R

7603iscooled

b

y

ai

r

dr

aw

nin

t

hroughth

e

ai

r

filterontherea

r

p

aneland

b

low

n

out

throug

hthe

h

oles

on

t

he

r

ight

side.A

deq

uate

clearancemust

be p

rovidedat

these

locations.Allow

at

least

oneand

one-half

inches

clearan

ce

beh

i

ndthe

air

filte

rand

at

least

one

i

nch

on

the

r

ight

side.

OperatingPosition

Αbale-typestandismounte

d onthe b

ottomof

this

inst

rum

ent.

This

standpermits

the

7603

tobe

tilte

d

up

a

bou

t10°

fo

r

mor

e

convenient

viewing

.

General

DISPLAY

DEFINITIONS

AlternateMo

de

Α

time-sharingmethodofdisplayingtwo

o

r

mor

e

signals

withα

single cathode-ray

tubebeam.C

ha

nn

el

switchingis

se

que

n

tial

andoccursatt

he en

dofeach

sweep

.

C

h

oppedMod

e

Α

time-s

h

aring

method

ofdisplayingtwo

o

r

mor

e

signals

withα

si

n

gle

cat

ho

d

e-ray

tubebeam.Channel

switching

is

sequen

tial

andoccursatα

ratedetermine

d

by anintern

al

clockgenerator

(choppingrate)

.

Single

Trace

Χ-Υ

ΝΟΤΕ

See

Simplified

O

p

erating

Instructions

in this

section

forset-up

informationtoobtain

eac

h

of

thefollowing

displays

.

7

1

ι
ι

ι

a

nd

o

ne

sweep.

Αdisplay

of α

singleplot

prod u

ce

dbyo

ne

vertical

signal

Α

t

he

rm

al

cutouti

nth

is

instrument

provides

thermal



Α

d

is

p

lay

of

two

p

lots

produce

d b

y

two

vertical

signals

pr

otectio

n andinterrup

ts

t

he

p

owerto

the

inst

rum

entif



and

o

n

e

sweep

.

theinternal

temperature exceedsα

safe

operating

level

.

P

ower

isautomatically

restore

dwhenth

e

temperature

r

et

urn

stoα

safe

level

.

O

p

eratio

nin

confined

a

r

eas

o

rin



DelayedSweep-

Single

Trace

closeproximitytoheat-producing

i

n

st

rumen

ts

may

cause

thet

he

r

mal

c

u

touttoo

penmor e

frequen

tly

.

Αdisplay

of α

singleplotproducedbyonevertical

signal

and αdelayedsweep.

Two

sweeps

areusedto

pro

d

uceth

is

d

isplay;thesweeps

are operating-ίthα de1α

y

ίπΗ

/delaye

d

relationshi

pwh

ere

one

sweep

(i

den

tifiedasthe

d

elayi

ng

sweep)delays

the

sta

r t

of

the

secondsweep

(identifiedas

the d

elayedsweep)

.

DelayedSweep-

Dual

Trace

R

ackmount

ί

ng



Α

d

is

p

layoftwoplots

pro

du

ced by combiningtwo

vertical

signals

and

αdelaye

d

sweep.

Two

sweepsare

use

d

Instructions

anddimensional

drawin

gs

fo

r rackmou

nting



toproduce

this

display;t

he sweep

s

are

operati

ng with α

t

h

eR7603

are

locatedin

Sectio

n 3 of t

h

e

o

pe

r

ators

ma

nu

al

.



d

elaying/delaye

dr

elationship.



E

ac

h

vertical



signalis

d

isplayedagai

n

st

the

d

elayedsweep.

Αplotoftwo

variables,neitherofwhichrepresents

Thefollowingdefinitionsdescribethe types

ofdisplaystime.Χreferstot

he

h

orizontal

axis

a

nd

Υ

r

eferstothe

whic

h can

b

e

obtai

ned

withα

7603

Oscilloscope

syste

m

ve

r

tical

axis

.

Ο

ι
ι
ι

General

PLUG-IN

UN

ITS



CONTRO

L

S

ANDCO

NNE

CTORS

T

h

e

7603

is

designed

to

accept

up

to

three

TEKTRONIX

7-seriesplug-in

units.Thisplug-in

feat

u

re

allows

α

variety

of display

combinationsand

also

allows

selectionof b

andwidth,

sensitivity,display

mode,

etc.t

o

meet

the

measurement

re

qu

ireme

n

ts.In

a

dd

ition,itallows

the

oscilloscope

systemto

beex

pa

nd

ed tomeet future

measurementreq

uirements.Theoverall

capabilitiesofthe

r

esultant

system

are

in

large

p

art

determine

d

b

y

the

characteristicsoft

h

e plug-inselected

.For

complete

infor-

mation on

p

lug-ins

available

for

use

wit

hth

is

instrumen

t,

see

the

curre

n

t

Tektronix,

Inc.catalog

.

Plug-in

Installation

To

install

α p

lug-inunit

i

ntoone of the

plug-in

compa

r

tments,

align

the

slots

i

n

t

h

e

to

pand

b

ottomoft

h

e

plug-in

wit

hthe associated g

uid

e

railsinthe

plug-in

comp

artment

.

Pushth

e

plug-i

n

u

nit

firmly

into

the p

lug-i

n

compa

r

tment

untilitlocks

into place.To

removeαplug-in,

pull

the

release

latchon

the p

lug-i

n to d isengage

it

and

pull

theunit

outoft

h

e

plug-in

compartment

.Pl

u

g-inunits

can

be

removedor

installe

d

without t

urn

ing

off

t

h

e

inst

rum

entpower.

Itisnotnecessary

that

all

of

the p

lug-incompartments

be

filledto

operate

t

h

e

inst

ru

ment;the

only

plug-in

units

n

ee

de

d

are

those

requiredfo

rth

e

measurement

tobemade

.

However,atenvironmental

extremes,

excess

radiationmay

b

e radiated

into

oroutofthis

instrument throug

hth

e

ope

n

plug-in

compartments

.

B

lan

k

plu

g-inpanels

are

available

fromTektronix, Inc.t

o

cove

rth

e

unused

compart

men

t

;

or

derTEKTRON

IXPartNo.

016-0155-00

.

Whe

n

t

h

e

7603

is

calibratedin

accorda

nce wit

h

t

h

e

calibratio

n pr

oce

dur

e

given

in

the

service

ma

nu

al,

the

v

ertical

andhorizontal

gain are stan

d

ardized.

This

allows

cali

brated

p

lug-i

n

un

itstobe

changed

fromone

plug-i

n

compartment

to

anotherwit

h

out

recalibration.

However,

the

basic

calibratio

n

of

the

individualplug-inunits

shoul

d

b

e check

e

d

w

h

en

t

h

ey

are

installedin

this

system

to

verify

theirmeas

u

rement

accuracy.See

the

operating

instr

u

ctions

sectio

n

of

the

plug-in

unit

instructionmanual

for

verifica-

tionproce

dur

e

.

Special

purpose

p

lug-i

n

un

its

mayh

ave

specific

rest

r

ic-

tions r

ega

rd

ing

t

h

e

plug-in

com

pa

r

tments

i

nwhich

t

h

ey

can

beinstalled.

This

inform

ationwill

be giveninthe

instruc-

tio

n

manu

al

fo

r

t

h

ese

plug-inunits

.

Operating

Instructions-7603/137603

O

perators

T

h

e

ma

j

orcontrols

foroperationoft

he

7603

are located

on

the

frontpaneloftheinstrument

.Figs.1-2

and

1-3

pr

ovide α b

rief

d

escriptionof each

control

andconn

ecto

r

.

M

oredetaile

d

operating

inform

ationis

give

n und

erGeneral

Operating

Information

.

General

O

PER

ATING

CHECKOUT

T

h

e

following

Ope

r

ati

ngCheckou

t

providesαmeans

of

verifying

instrument

operatio

nand

b

asic

calibration

with-

outremoving

the

coversorma

k

ing

internal

adjustments

.

Sinceitd

emonstrates

the

useofall

controls

andconnec-

tors,itcan

alsobe

used

toprovi

de b

asic

trainingonthe

operationof

this

instrument.If

r

e-calibrationof

the

7603

appearstobenecessary,

see

the

Cali

br

atio

n pr

oce

dur

e

i

n

Section3 of

t

h

e Service

manual.If

re-calibrationof

α

p

lug-in

u

nitisindicated,

see

theinstruction

man

u

al

fo

rth

e

app

ropr

iate

plug-inunit

.

Set-

Up

Information

1 .

Set

thefront-panel

controlsasfollows

:

INTENSITY

Co

un

te

r

cloc

k

wise

F

OCUS



M

idrange

BEAM

F

IND

ER



R

elease

d

G

R

ATIC

ULE

ILLUM



Asdesired

VER

TMOD

E



LEF

T

TRIG

SO

UR

C

E



VER

TMOD

E

P

O

WER



Pushedin

2

.

Co

nn

ect

the

7603toα

powersource

whichmeets

the

voltage and

fre

que

n

cy

requ

irementsofthis

instrument.The

ap

plied

voltage

shoul

d b

enea

rth

e centerof

the voltage

ra

n

gemarkedon

the

rea

rpan

el

(see

O

pe

r

atingVoltage

i

n

t

h

is

sectionforinformationon converting this

instrument

from

one operating

voltage

to another)

.

3.Install

TEKTRONIX

7A-series amplifierunits

i

nto

b

ot

hth

e

left

and

right

verticalplug-i n

compartments

.

Installα713-series

time-baseunit

into thehorizontal

compartment

.

NOTE



4

.

Pull

the P

O

WER

switc

h

to

turn the

instrumenton.

L

ate

r

prod

u

ction

ofrackmou

n

t

oscilloscopes

are

pro-



Allow

several

minutes

warmu

p b

eforeproceeding

.

νίde

d

with

su

pportp

osts

between

t

he

individualplug-

i

n

compart

m

ent&

Αpostorposts

m

u

st

be

removedif

α

muldw

ίdthplug-inisto

b

e

installed.

To

r

emove

α



5.Setbathverticalunits

forαdeflectio

n factor of

two

p

ost,

un

fastenthe

screws

that

secureitat

thetop a

nd



volts/divisionand

cen

te

rth

e verticalpositioncontrols.Set

bottom

of

theplug-in

housing

.



bot

h ve

r

tical

units

forAC

i

nput

coupling

.

REVC,JUL

197

8

OperatingInstru

ctio

n

s-7603/R7603

Operators



I

FUN

CTIONS

OFCO

NTROL

S

AND

CO

NNE

CTORS

Fron

tPan

el



L

ight

: Indicatesthat

thepower

switchisona

nd

t

hatt

he

inst

rum

entisconn

ectedto αlinevoltage

so

u

rce

.

1

. INTENSITY-Cont

rols brightn

ess of

the disp

lay.Control

is

inop

erativewhenhorizontalcomp

art

m

entisvacant

.



8.CALIBRATOR-Calibrator

outputpinjacks(4V,0

.4V,40

mV,ground) .Positive-going

pulse

o

r

DC

voltage

selecte

d by

2

.

RE

ADOUT-T

urnsonthereadout

d

isplayandcon

t r

ols the



changinginternaljumper.

R

epetitio

n rateisapproximately

one

readoutin

te

n

sity

.



k

ilohertz.

3

.FOC

US-Provides a

dju

stment

forop

ti

mumdisplay d

efinition.

4.GR

ATIC

ULEILLUM

-Co

ntrols

gratic

u

le

illumination

.



LEFT:

Sign

alsfromplu

g-inun

itin

leftver

ticalcompar

tment

aredisplayed.

5.BEAM

FIND

ER-Whenpressed,th

e scan

is

limitedto

withi

n

t

heg

r

aticulearea

.



ALT:Signalsfrom

plug-inunitsin boththeleftand

righ

t

verticalcompartments

a

redisplayed(dualtrace).Display

switchedbetwee

n

verticalplug-inun

its

aftereachsweep.

6.TRIGSOUR

C

E

-Selectssour

ce ofinternaltrigge

r

sig

nalfo

r

t

hetime

base

plu

g-inin

t

heho

rizontalcompar tment

.



ADD:Signals

fromplug-inunitsin

bot

htheleft

a

ndright

verticalcompartments

a

realgebraicallyaddedandth

e sumis

LEFT:

T

hetr

iggersignalisobtaine

dfromtheplug-i

nunit in



displayed

on

t

h

eCRT.

the

leftver

tical

com

partm

entonly.

CHOP:Signals

fromplu

g-i

n unitsinboththeleft

a

ndright

VER

TMOD

E:Triggersignalau

tomatically

follows

the ver

tical



verticalcompartments

a

r

edisplayed(dualtrace).Th

e d

isplay

is

d

isplay

exce

p

t

in

C

HOPandADD;the

nthetr

igge

r

signalisthe



switched b

etweenver

ticalplug-inun

its

at ap pr

oximatelyone

algebraicsumof

the

signals

f romtheleftand

rightver

tical



m

egahertzrate

.

compartments

.

RIGHT:

Sign

als

f romplug-inunitinrightvertical

compart-

RIGHT:T

hetr

iggersignal isobtainedfromth

e

p

l

u

g-i

nu

nit

in



ment

isdisplayed.

therigh

t ve

r

ticalcomp

artment

only

.

10.Ca

meraP

ower(NotLabele

d

)

-T

h

ree-pinconn

ector

on

C

R

T

7

.PO

WER-



b

ezel

providespowe

routput

(+15

V)

.

R

eceivesremotesin

gle

swee

p

r

eset

signal

fromcompatible

camera

systems,andαgro

und

pin

Switch:Con

trols

powertothe

inst

rument.



connection

.

9.VERTMODE

-Selects

vertical

mode ofoper

ation.

Fig.

1-2

.

Front-panelcon

trolsand

connectors

.

ι
ι

ι

ιιιαιsιιιιιιιι

s

ιιιιιιιιιιι

ιι..,

.

ss

ιιιιιιιιιιι

s

ιιι

ιι

. . ,

ιιαιsιιι

s

ιιιιιιιι

ιι~ιιΡ~ι.ιιsιιιιssι

sιs

ιιιιι

sι

IN

WATTS

FORT)

ι

λ

f

AMPS

ΙΕΕΑΧΙ



F

USE



ι

AT

THEY.Ν

Κτ



0

32ΑSLOW 100-ΙΜ

RANGE

SS

READY

OUT

(7503P



=16ASLOW

200-24ΟΥRANGE

REMOTE

ERASEIN11613

7623ALTERNATE

FUSE INSIDE

131

ΥΕΡΤ

S1G

0UT

ΜΑΙΝ

'ΑUXILIARY

1

Υ

ΕΜΤ

Ζ

AXIS

IN

1

ΙLΑΥ



+6

ΑΤΕ

O

UT

ΥΙΟΥΜΑΧν500

Ω

POSITIVE

SIGNA

.

DECREASES

INTENSITY



}SAW7007N

THIS

INST61MEN7Ι$

CONNECTED



ΟμΤ

ιFOR

0

υ

Τ 10%

JUMPERSι

INSIDEFREDUENCY50ΤΟ

400

Χε



11,ο

ω

R

earPanel

1.FU

SE-L

ine voltage

fuse

for

instrument

.

2.SSRE

ADYOU

T-

Provides an external

si

n

gle

sweeprea

dy

indicatorsignal

afterthesin

gle

sweephas b

eenr

eset

.

3.ΕΧΤ

SSRES

ETIN-Remote

single

sweepr

eset

.

4.ΕΧΤ

Ζ

AXIS

IN-input

connectorfor

i

nten

sitymodu

lationof

theCR

Tdis

play

.

5.VER

T

SIGOUT-Vertical

signal

selecte

dbyTRIGSOUR

C

E

switc

h

(LEFT,RIGHT,ALTandADD)

.

6.GATEOU

T-Gate

signal

selecte

d b

y gate

selectorswitc

h

(MAIN,

AUXILIARY,

andDEL

AY)

.

7.+

SAWTOOT

HOUT-P

ositive-goi

ng

sawtoothf romtime-base

unit

.

F

ig.1-3.Rea

r

-panelcont

rols andco

nn

ectors

.

O

p

erating

Instr

u

ctions-7603/137603

O

pe

r

ators

"

~

ω

qN

W-191111111110



"INOWIRM

!

οΛΙΝ

"

2-100

NNIF

Γ7

111111

1111411%



!-

1

Ε



ir"

V

e

Υ

^

OW

No

O

p

erating

Instructions-7603/R7603

Operators

6.Set

thetime-baseunit

forα swee

p

r

ateofone



14

.Press

theRIGHTbutton

of

the

VER

TMOD

E

millisecond/divisio

ninth

e

auto,

internal

triggermode.



switch.Remove

thecalibrator

signal

from

theleft

vertical

and

connectitto

the

right

vertical.The

display

amplitude

shouldbe

fourdivisions

within0

.12division.Note

the

exact

display

amplitu

d

e

for

the next

step.

7

.

Advance

t

h

e

INTENSITY

control

un

til

t

h

e

traceisat

t

h

e

desire

d

viewing

level

(nea

r

midr ange)

.

Advance

the

RE

ADOUT

u

n

til

t

he

r

eadout

displayisat

the

desire

d

viewing

level

.

8.Connect

the4Vcalibrator

pin-jackto

the

inputof

the

left

verticalunit

withαBNCtopin-jac

k ca

b

le

(supplie

d

accessory)

.

Graticule

Illuminatio

n

11

.Rotate

theGRAT

I

LLUM

control

throughout

its

ra

nge

an

d

n

otice

that

theilluminationof

the

graticule

lines

increasesasthe controlisturned

clockwise

(most

obvious

with

tintedfilter

installed).Set

thecontrolsothe

graticule

lines

are

illuminatedas

desired

.

15.Α

correct

display

i

n

both

steps

12 and14

indicates

that

the

7603

Vertical

DeflectionSystem

and

t

he ve

r

tical

plug-i

n

un

its

are

cali

b

rated.

If

t

h

e

displaysnote

d

p

reviously

are bot

h

ou

tside

the

given

toleranceinthe

same

directio

n

(i.e.,highor

low),

the

Vertical

Gain

or4

Volts

calibrato

r

a

djustm

ent

probab

lynee

d

s

r

e-a

dj

ustment.Otherwise,

chec

k

t

h

e

calibrationof

the

vertical

plug-inunits

.

Triggeri

ng

ί

ι
ι

16

.

N

otice

that

thepositio

n co

ntr

olofonly

theright

verticalunithasaneffectonthe

positionof

the

display

.

P

ositio

nth

e

displaytothe

lowerhalfofthegraticule.Set

DisplayFocus



b

othvertical

units

forα

deflectionfactorof

two

volts/

9.A

dju

st

the

FOC

US co

ntr

ol

forα

s

h

arp,

well-defined

divisio

n

.

Connect

calibratorsignaltobothvertical

units

by

display

ove

rth

e entire

trace

length.Ifαproperly

focuse

d



u

sing

α dualinput

coupler

.

display

cannot be ob

tainedwit

hth

e

FOCUS

control,

the

internal

Astigmatism

adjustment

must

be

re-set;see

the



17

.Press

t

h

e

A

L

Tbuttonofthe

VER

TMODEswitch.

Calibrationsectionof

the

Service

manual

.



N

otice

that

two

traces

are d

isplayedon

the

CRT.The

to

p

trace

isproduce

d b

y

the

left

vertical

unit

a

ndthe

b

otto

m

traceisproduce

d

b

y

the

r

ight verticalunit.Set

the

swee

p

r

ate

to 50

milliseconds/

d

ivision.Notice

that

t

he disp

lay

Trace

Alignment



alternates

betwee

n

t

h

e

left

andright

verticalunits

after

eac

h

sweep.

T

urnth

e

sweeprate

switc

hthroug

hou

t

its

10.Disconnect

thein

put

signal

andposition

the

trace



r

a

n

ge

.Notice

that

the

display

alternates

betweenve

r

tical

wit

hth

e

left

verticalunitpositioncontrol soitcoincides



un

itsatall

sweeprates

.

wit

hth

e

centerhorizontal

lineofthe graticule.If

the

trace

is

not paralleltothe

centerhorizontal

lineofthe

graticule,

see

T

r

aceRotatio

nadju

stment

procedure

inCalibratio

n

section

of

the

servicemanual

.

18

.Press

theCHOP

bu

ttonof

the

VER

TMODEswitch.

Tur

nth

e swee

p

r

ate

throughout

itsrange

.Notice

that

α

du

al-trace

displayispresentedat

all

sweeprates,butunlike

ALTb

othverticalunits

are

displayedon each sweep

i

n

α

time-sharingmanner

.Retur

nth

e

sweep

rate

to0.5

m

illisecond/division

.

19

.

P

ress

the

ADD

bu

ttonof

the

VER

TMODEswitch.

The

display

sho

u

l

d b

B

fou

r

d

ivisions

inamplitude

.Notice

that

the

positionco

n

trolofeitherverticalunitmoves

the

display

.

R

et

urntheVER

TMODEswitchto

LEF

T

.

ι

Vertical

Deflection

System



20.Center

the d

isplayοηthe

CRTWί

t

hth

e

left

vertίcα

1

un

it

positio

n co

n

trol.Disconnect

the

i

npu

t

signal

fro

mth

e

12.Connectt

he



4

V



calibrato

r

sig

n

altothe

i

npu

t



r

ig

h

t

ve

r

ticalunit

input

conn

ector.Sequen

tiallypress

all

of

connectorof

the

left

vertical

unit

wit

htheBN

Ctopin-jac

k



t

heVER

TMODEswitc

h

bu

ttons

.

N

otice

t

h

at

α

stable

cable.Set bot

h vertical

un

its

forα

deflection

factor

of

o

n

e



displayisobtaine

d

in

all

positio

n

s

of

the

VER

T

M

OD

E

volt/

d

ivisio

n

.



The

displayamplit

u

d

eshoul

db

e fou

r

switc

h

(straight

line

i

n

RIG

H

T

position)

.

divisions

.Note

the

exact

display

amplit

ud

e forstep15

.

21

.

Pr

ess

the

LEF

T

button of

the

T

RIGSOURCE

13

.Notice

that

the

positioncont

r

ol

of only

t

h

e

leftswitch.

Again,

seque

n

tially

press

all

of the

VER

TMOD

E

verticalunithasaneffect

on the

positionof

t

he disp

lay

.



bu

ttons.Notice

that

the

displayisagain

stable

inall

P

ositio

nth

e

displaytotheupperhalfofthegraticule

.



positions,asi

nth

e

previousstep

.