Tektronix 2235 Manuale utente

2235

OSCILLOSCOPE

SERVICE

INSTRUCTION

MANUAL

Ictro

ηά

THE

NG S

ERV

ICI

CTIONS

R US

PER

NNEL

ONL

O A

OID

PER

NJUR

DO NOT

PER-

ORM

ANY

SERV

ICI

GOTHERTHAN

THAT

TAI

OPER

ATI

NST

CTIONS

UNLE

REFER

OP-

ERATORS

UMM

RY A

D S

ERV

UMM

RY PR

PERF

ANY

SERV

tro

atio

eting

ter

for

uct

Information,

call

1-800-426-2200

ext

ego

call

collect

(503)627-9000

ext

atio

eti

Box

500 D/S

6-088,

eaverto

97077

PLE

ATIO

THE

2235

OSCILLOSCOPE

ERV

CTIO

tronix,

Inc

Box

500

eaverto

Oregon



97077



Serial

umber

ITT

ELLEN

070-4206-00



irst

rinting

1982

uct

Gro



evised

MAY

1983

Copy

1982

k tro n

ix,

All rig

h ts

rese

ved

tents

publicatio n

may

not

e re pr

oduce

any

form

wit

out

itten

missio

n of

tronix,

Inc

Prod

cts

tronix,

and

its

sub

sidia

ies

are

cove

and

foreign

atents

and

/or

pen

ding

ate

IX,

ΤΕΚ

SCO

PE-M

LE,

are

registered

emar

k s of

Tek

ix,

n c

ELE

PMEN

registered

tra

emar

k of

k tro n

imited

Printe

ecificatio

n and

rice

c h

ange

rivileges

are

reserved

NST

RUMEN

NUMBER

Each

strume

ial

b er

on αpa

sert,

tag,

stam

ped on

e ch

assis

st n u

letter

desig

ates

country

ufact

last five

igits

e se

r ial

are

assigne

d se

entially

nd a

que

eac

str

hose

fact

h e

United

States

have

six

que d

igits

The coun

try

facture

den

tifie

d as

follows

ΒΟΟΟΟΟΟ



ix,

n c

eaverto

ego

USA

100000



tronix

sey,

han

nel

islands

200000



onix

ite

d K

gdom,

don

300000



Sony/Te

t r

ix,

apa

700000



Holla

NV,

Hee

envee

e Neth

erla

BLE

2235

Service

LIST

ILLUSTRATIONS



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



iii



SECTION



THEORYOF

OPERATION

LIST

TABLES



. .

....

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



iii



INTRODUCTION

........

.....

...



3-1

OPERATORS

SAFETY

SUMMARY



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



GENERAL

DESCRIPTION



........



3-2

SERVICING

SAFETY

SUMMARY

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

...



DETAILEDCIRCUIT

DESCRIPTION



3-3

VERTICAL

ATTENUATORS

.....



3-3

SECTION



SPECIFICATION



Coupling

....

.........



3-3

INTRODUCTION

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



1-1



uffer

Amplifier

and

Gain

ACCESSORIES

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

...

1-1



Switching

Network

..........

3-4

PERFORMANCE

CONDITIONS

....



1-1



Paraphase

Amplifier

........



3-4

VERTICAL

PREAMPLIFIERS



. . .

3-5

SECTION2



OPERATING

INSTRUCTIONS



CHANNEL

SWITCH

PREPARATION

FOR

USE



....



2-1



VERTICAL

OUTPUT



........



3-5

SAFETY

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

....

2-1



Delay

ine

Driver

.........

3-6

INE

VOLTAGE



.........

....



2-1



ertical

Output

Amplifier

...

. .



3-6

POWER

CORD

........

. .....

2-1



Sweep

Separation

Circuit

3-7

INE

FUSE

.........

....

.....



2-1



TRIGGER

AMPLIFIERS

AND

INSTRUMENT

COOLING

.......



2-2



SWITCHING

.........

.......



3-7

CONTROLS,



CONNECTORS,



AND



Internal

Trigger

.....

.......



3-7

INDICATORS

...

.....

...........



2-2



Internal

Trigger

Amplifier



.....



3-8

POWER,

DISPLAY,

AND

PROBE



External

Trigger

lifier

...



3-8

ADJUST



...

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



2-2



ine

Trigger

Amplifier

........



3-8

VERTICAL



....

...........



2-3



TRIGGER

GENERATOR

......



3-9

HORIZONTAL

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



2-4



Trigger Level

Circuit

.......



3-9

TRIGGER



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



2-6



Trigger

evel

Comparator



. .



3-9

REAR

PANEL

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



2-7



Schmitt

Trigger

and

OPERATING

CONSIDERATIONS

...



2-8



Trigger

Circuit



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



3-9

GRATICULE

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

...



2-8



SWEEP

GENERATOR

AND

GROUNDING

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

...

2-8



OGIC

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

3-9

SIGNAL

CONNECTIONS

...



2-8



iller

Sweep

Generator

...



3-10

INPUT

COUPLINGCAPACITOR



Sweep

ogic



.........

. .



3-11

PRECHARGING

..........

...

2-8



ALTERNATE

SWEEP

......

3-11

OPERATOR'S

ADJUSTMENTS

...



2-9



iller

Sweep

Generator

...



3-12

INTRODUCTION



......

...

....



2-9



Trigger

evel

Comparator



3-12

TRACE

ROTATION

...

....

.....



2-9



Runs

After

Delay

.....



3-12

PROBE

COMPENSATION

. .

....



2-9



Delay

Time

Position

OSCILLOSCOPE

DISPLAYS

......

2-10



Comparator

........

......

3-12

INTRODUCTION



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

2-10



Swee

ogic



. .

...

.......

3-12

ASELINE

TRACE

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



2-10



Alternate

Dis

lay

Switching

SIGNAL

DISPLAY



. .

..........

2-11



ogic



........

...........

3-13

AGNIFIED-SWEEP

DISPLAY



. .



2-11



ΒΖ

-Axis

ogic

.....

.......



3-13

DELAYED-SWEEP

DISPLAY

....

2-11



HORIZONTAL

...

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

3-13

DELAYED-SWEEP



Horizontal

Pream

lifier

.......

3-14

MEASUREMENTS

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



2-11



Amplifier



........



3-14

SINGLE-SWEEP

DISPLAY

......



2-12



Horizontal

Output

Amplifier

...



3-15

DISPLAY

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

2-12



Z-AXIS

AMPLIFIER

...........

3-15

SIGNAL

DISPLAYS



....... .

2-12



Restorer

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

3-16

2235

Service

Page



Page

SECTION



THEORYOF

OPERATION

(cont)



SECTION



AINTENANCE

(cont)

POWER

SUPPLY

AND

PROBE



NTRODUCTION



...........

. .



6-2

ADJUST

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

.....

. .



3-17



GENERAL

CARE

...........



6-2

Power

Input

........

.....

. .

3-17



INSPECTION

AND

CLEANING



6-2

Preregulator

........

.....

. .

3-17



LUBRICATION

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

. .

6-4

Inverter

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

.....

. .

3-18



SEMICONDUCTOR

CHECKS

. .

6-4

Crt

Supply

.........

.....

. .

3-18



PERIODIC

READJUSTMENT



. .

6-4

Focus

Circuit

.......

.....

. .



3-18



TROUBLESHOOTING

.........

. .



6-5

ow-Voltage

Supplies



.....

. .



3-19



INTRODUCTION



...........

. .



6-5

Probe

Adjust



......

. .



3-19



TROUBLESHOOTING

AIDS



. .



6-5

TROUBLESHOOTING

EQUIPMENT

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

...

6-6

SECTION



PERFORMANCE

CHECK



TROUBLESHOOTING

PROCEDURE



TECHNIQUES

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

. .

6-6

INTRODUCTION

..........

.....

4-1



CORRECTIVE

MAINTENANCE

. .

6-10

PURPOSE

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

...

. .

4-1



INTRODUCTION

..........

...

6-10

STRUCTURE

..........

.....

4-1



AINTENANCE

PRECAUTIONS



6-10

TEST

EQUIPMENT

.....

4-1



OBTAINING

REPLACEMENT

IMITS

AND

TOLERANCES

...



4-1



PARTS



. .

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

. .



6-10

PREPARATION

FOR

CHECKS



4-2



AINTENANCE

AIDS



......

...



6-10

INTRODUCTION



NTERCONNECTIONS

......

. .

6-10

PERFORMANCE

CHECK

STEPS



4-3



TRANSISTORS

AND

VERTICAL



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

.....



4-4



INTEGRATED

CIRCUITS

... ....



6-11

HORIZONTAL

..........

....



4-8



SOLDERING

TECHNIQUES



....



6-12

TRIGGER



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

.....



4-12



REMOVAL

REPLACEMENT

EXTERNAL

Z-AXIS

AND

PROBE



NSTRUCTIONS

.........

....



6-13

ADJUST

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

....

4-15



Cabinet

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

....

6-13

Cathode-Ray

Tube

...... ....



6-13

SECTION5



ADJUSTMENT

PROCEDURE



Power-Supply

Shield

...

....



6-14

INTRODUCTION

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



5-1



ilter

Circuit

oard

. .

....



6-14

PURPOSE



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



5-1



Alt

Sweep

Circuit

oard



....



6-15

STRUCTURE



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



5-1



Attenuator

Circuit

oard



....



6-15

TEST

EQUIPMENT

...........

5-1



Timing

Circuit

oard

...

....

6-16

IMITS

AND

TOLERANCES



....



5-1



ottom

Shield,

Attenuator

ADJUSTMENT

INTERACTION



. .



5-1



Timing

Circuit-Board

odule

. .



6-17

PREPARATION

FOR



Front-Panel

Circuit

oard



....



6-17

ADJUSTMENT

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

5-1



ain

Circuit

oard

. .

.......

6-18

INDEX

TOADJUSTMENT



REPACKAGING

SHIPMENT



6-20

PROCEDURE

STEPS



.........



5-3



SELECTABLE

COMPONENTS



. .



6-20

POWER

SUPPLY

AND

CRT

DISPLAY

5-4

VERTICAL

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



5-6



SECTION



OPTIONS

ORIZONTAL

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

5-14

TRIGGER



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



5-20



SECTION8



REPLACEABLE

ELECTRICAL

PARTS

EXTERNAL

Z-AXIS

AND

PROBE



SECTION



DIAGRAMS

ADJUST

. .

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

5-24

SECTION

REPLACEABLE

MECHANICALPARTS

SECTION



AINTENANCE



Accessories

STATIC-SENSITIVE

COMPONENTS



6-1

PREVENTIVE

MAINTENANCE

.....

6-2



CHANGE

INFORMATION

ιι

BLE

(cont)

IST

LLU

ATIO



age

igu



age

2235

Oscillosco

.........

.....

. .



2-7



ear-

anel

con

ector

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

. .



2-7

1-1



aximum



inp



voltage



fre



2-8



Gratic

meas

reme

mar

ngs

...... ..



2-8

ating

curve

for

RΥ



2-9



com

satio

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

. .



2-10

and

ΕΧ

NPU

conn

ecto

..... ..

...

. .



1-7



3-1



loc

iagram

tical

Atte

uators



3-4

2-1



oltage,

ower

cord,

fuse

data

....

. .



2-1



3-2



loc

diagram

annel

Switch

ing

2-2



use

and

ower

d connector

. .



2-2



circ

itry

.......

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

.....

...



3-6

2-3



ower,

dis

lay,

and

probe

dju

con

trols



3-3



loc

k diagram

Sweep

Generator

conn

ector

and

icator

...

. .

.......



2-3



and

ogic

Circuitry



...........

.......



3-10

2-4



ertical

controls

ecto

r s

........



2-4



3-4



loc

diagram

orizontal

lifier



3-14

2-5



orizontal

controls



......

.....

........



2-5



3-5



Sim

lified

diagram

estorer

2-6



Trigger

controls,

connector,

and

indicator



2-6



circuitry



......

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



3-16

6-1



ulti-co

ector

older

ientatio



.......



6-6

IST

FTA

BLE

2235

Service



age



age

1-1



lectrical

aracte

istics

. .

.....

........



1-2



5-4



Attenuator

Compensatio

stme

...



5-9

1-2



nvironmental

aracteristics

...

.......



1-8



5-5



Settings

for

Bandwid

heck



.........



5-12

1-3



ysical

aracte

istics



. .

.....

........



1-9



5-6



Settings

Timing

Accuracy

hecks

.....



5-17

4-1



Test

ment

uired



......

.......



4-2



5-7



Setti

ngs

for

Delay

Time

Acc

racy

hec



5-18

4-2



Deflectio

Acc

racy

imits

.....

.......



4-4



5-8



Switch

Combinations

for

Triggering

4-3



Setti

ngs

for

heck



........



4-6



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

.........



5-21

4-4



Setti

ngs

for

Timi

Acc

racy

hecks

.....



4-9



6-1



elative

sce

tibility

Static-Disc

4-5



Setti

ngs

for

Delay

Time

Acc

acy

hec



4-10



Damage

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



6-1

4-6



Switch

Com

atio

igge



6-2



xternal

Ins

ection

heck

list

. .

.........



6-3

heck

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

.....

........

4-12



6-3



Inte

nal

Inspection

heck

list

...

.........

6-3

5-1



ustme

teractio



. .

.....

........



5-2



6-4



ower

Supply L

imits

and

.........



6-8

5-2



ower

Supp

imits

.....

........



5-4



6-5



ance

Aids

......

.....

.........



6-11

5-3



Deflection

Accuracy

imits

.....

........



5-8



6-6



Trigge

Alteration



. .

........



6-20

2235

Service

Symbols

Manual

PER

ATO

UMM

e gener

safety

information

art

of t

e s

mmary

for

bot

operating

vicing

perso

nel

Specific

warnings

and

cautio

will

roug

t t

man

here

hey apply an

not

appea

mmary

Terms

Manual



Groun

ing

uct

TIO

stateme



tify



con

itio

or p

ractices



produ

gro

ough

he g

oun

ing

uctor

coul

res

amage

othe

of

ower

cor

avoid

elect

ical

hock

g t

erty



owe

cor

into

operly

rece

efore

con-

necting

oduct

npu

outpu

termi

als

state

entify

cond

itio

or pr

actices



rotective

grou

ection

way

gro

und

ing

coul

personal

injury

loss

life



ndu

ctor

power

cord

esse

tial

safe

eratio

TIO

icates

erso

injury

aza

imme-

iately

accessi

gs,

azar

erty,

incl

t h

e equ

itself

icates

ersonal

nju

aza

imme

iately

accessi

rea

s t

symbol

icates

e r

eapp

lica

cautio

ary

info

mation

to be

maxim

inp

voltage

see

1-1

Symbols

Equ

114



voltage



rotective

g r

oun

(eart

)

termi

Danger

isi

oss

Groun

loss

protective-g

oundconn

ectio

all

acces-

ndu

ctive

parts

(incl

ng knob

s a

con

t r

ols

t h

to be

lati

can

end

electric

hock

Use t

ower

only

power

cor

and

ector

ecifie

your

only

power

cor

goo

d co

itio

detaile

nformation on

power

cor

conn

ectors

see

2-1

Use t

use

avoi

fire

aza

use

only

correct

voltage

rating

nd cu

rent

rating

specifie

the

parts

list

for

odu

ΑΤΤΕΝΤΙΟΝ

efe

ual

avoi

d exp

losion,

erate

produ

exp

losive

atmosp

ere

less

een

ecifically

cer-

ower

Source



tifie

for

uch

atio

erate

losive

Atmos

eres

pro

inten

operate

from

power

so urce

does

apply

han

250

volts

rms

betwee

pply

con

uctors

etween

eit

ply

cond

ctor

and



emove

Covers

anels

gro

protective

groundcon

nectio

way



avoi

d p

erso

ury,

remove

odu

gro

ng co

ctor

powe

cord

essential

for

safe



covers

els

not

ate

withou

t t h

operation



covers

and

pan

els

properly

stalle

ERV

ICI

UMM

ORQU

ERV

PER

NNEL

efer

also

prece

ing

Operato

Safety

mmary

Service

Alo



Disco

nect

power

efore

removing

protective

els,

sol-

not

erform

internal

vice

ustme

od-



deri

lacing

com

ents

uct unless

personcapable

ende

first

aid

resuscitatio

prese



owe

2235

Service

product

inte

ope

ate

from

power

source

eWh

nServicin

owe



does

not

apply

250

volts

between

supp

ucto

between

eit

supply

ductor

Dangerous

voltages

exist

seve

points

roduct



grou

rotective

groun

nnectio

n b

way

avoi

dpe

ury,

not

touc

exposed

conn

ectio



gro

con

ecto

power

cor

essential

safe

com

ents

ile

power



ope

ation

2235

Service

2235

Oscillosco

ατο

The

instr

wit

following

sta

accessories

ICATIO

Sectio

n1-2235

Service

NTR

CTIO



PERF

DITIO

2235

oscillosco

rugge

lig



following

electrical

acte

istics

(Ta

1-1)

ναΙ

weigh

ual-c

annel,

100-

strument

feat

res



for

2235

hen

as b

een

dju

sted

ient

rig

arply

defined

ace

on an

80-

100-mm

cat

ode-



tem

erat

etween

+20°C

and

+30°C,

warm-

ray

(crt)

Its

vertical

system

ovi

calibrated

deflec-



period of at

least

minutes,

and

ati

tion

facto

f r

divisio

V p

division



temperature

between

0°C

and

+50°C

less

Trigger

circuits

enab

stable

triggering

over

full

band-



erwise

noted)

widt

vertical

system

izo

tal

system

provi

cali

rated

swee

eeds

from 0

s perd

ivisio

per

division

along

wit

delaye

-sweep

features

for

acc

rate

relative-time

meas

rements

magnifie

extends



Items

listed

erformance

ireme

ts" col

maxim

swee

peed

ns pe

ivision



are

verifia

qualitative

quantitative

limits,

ile

items

listed

upp

lemental

formatio

col

n are

eit

explanatory

notes,

cali

ration

setup

descriptions,

erfor

ACC

SSO



mance

aracteristics

for

h no

absolute

limits

are s

eci-

fied,

aracteristics

are

impractical

eck

erators

Manual



pac

kages



nvironmental

aracteristics

are

give

1-2

The

Service

Manual



2235

meets

t h

ireme

MIL-T-288000,

aragra

.5 .5

.3,

.5 .5

.4,

and

for

Type

III,

Class

or part

mation about both



uipment,

except

ere

erwise

noted

sta

dard

and

tional

accessories,

refer

"Options

and

Accessories"

section

(Section

man

Your

Tek

tronix

resentative,

local

Tek

tronix

iel

Office,

Tek

tronix

prod

catalog

can

also

rovi

accessories



ysical

aracteristics

are

liste

Τα

information



1-3

Altri manuali per 2235

Indice

Altri manuali Tektronix Apparecchiature di prova

Tektronix

Tektronix 321 A Manuale utente

Tektronix

Tektronix P6248 Manuale utente

Tektronix

Tektronix 519 Manuale utente

Tektronix

Tektronix TBS1000B-EDU Series Manuale operativo e di manutenzione

Tektronix

Tektronix TAS 455 Manuale utente

Tektronix

Tektronix 2225 Manuale utente

Tektronix

Tektronix CSA8000 Series Manuale utente

Tektronix

Tektronix KEITHLEY 2520 Manuale utente

Tektronix

Tektronix DPO70000SX Series Guida utente

Tektronix

Tektronix DPO7000 Series Manuale utente

Tektronix

Tektronix 7B85 Manuale utente

Tektronix

Tektronix 466 Manuale utente

Tektronix

Tektronix 7B10 Manuale utente

Tektronix

Tektronix TDS3012B Manuale utente

Tektronix

Tektronix 3 Series Guida di riferimento

Tektronix

Tektronix TDSDDM1 Manuale utente

Tektronix

Tektronix TDS3012C Manuale utente

Tektronix

Tektronix KEITHLEY 2450-BenchKit Manuale utente

Tektronix

Tektronix TDS 520 Istruzioni operative

Tektronix

Tektronix LE160 Manuale utente

Tektronix

Tektronix A6304XL Manuale utente

Tektronix

Tektronix TDS1000 Series Manuale utente

Tektronix

Tektronix 485 Manuale utente

Tektronix

Tektronix TDS 520D Manuale utente

Manuali Apparecchiature di prova popolari di altre marche

SMART

SMART KANAAD SBT XTREME 3G Series Manuale utente

Agilent Technologies

Agilent Technologies BERT Serial Manuale utente

Agilent Technologies

Agilent Technologies N3280A Manuale utente

Vernier

Vernier Go Direct Voltage Manuale utente

Lifeloc

Lifeloc R.A.D.A.R. Manuale utente

Fluke

Fluke T5-600 Istruzioni per l'uso e l'installazione

Mercury

Mercury TSL01 Manuale utente

MAHA

MAHA MBT Series Manuale utente

Fuji Electric

Fuji Electric P-61 Manuale utente

ETC

ETC SealerAtor Manuale utente

Skyfine

Skyfine ETHYWAY V2 Manuale utente

Appion

Appion G5 Twin Manuale utente

PCB Piezotronics

PCB Piezotronics 8159-0112A Manuale utente

BW Technologies

BW Technologies MicroDock II Manuale utente

Sun Nuclear

Sun Nuclear 1027 Manuale utente

Biomark

Biomark HPR LITE READER Manuale utente

Hioki

Hioki 3169-20 Manuale utente

Ashcroft

Ashcroft ATE-100 Manuale utente