Tektronix 214 Manuale utente

Tektronix

Inc.

P.O.

Box

500

Beaverton

Oregon

97077

070-5055-00

Product

Group

Tektronix

COMMITTED

EXCELLENCE

WARNING

THE

FOLLOWING

SERVICING

INSTRUCTIONS

ARE

FOR

USE

QUALIFIED

PERSONNEL

ONLY

AVOID

PERSONAL

INJURY

NOT

PERFORM

ANY

SERVICING

OTHER

THAN

THAT

CONTAINED

OPERATING

INSTRUCTIONS

UNLESS

YOU

ARE

QUALIFIED

PLEASE

CHECK

FOR

CHANGE

INFORMATION

THE

REAR

THIS

MANUAL

214

OSCILLOSCOPE

SERVICE

B300000

ABOVE

INSTRUCTION

MANUAL

B304255

1304259

MAGNETIC

DATA

CALIFORNIO

Serial

Number

First

Printing

SEP

1984

Revised

JUL

1989



1973

1984

Tektronix

Inc.

All

rights

reserved

Contents

this

publication

may

not

reproduced

any

form

without

the

written

permission

Tektronix

Inc.

Products

Tektronix

Inc.

and

its

subsidiaries

are

covered

U.S.

and

foreign

patents

issued

and

pending

ERTRONI

TEKTRONIX

TEK

SCOPE

MOBILE

and

Tektronix

Inc.

Printed

U.S.A.

Specification

and

price

change

privileges

are

reserved

are

registered

trademarks

INSTRUMENT

SERIAL

NUMBERS

Each

instrument

has

serial

number

panel

insert

tag

stamped

the

chassis

The

first

number

letter

designates

the

country

manufacture

The

last

five

digits

the

serial

number

are

assigned

sequentially

and

are

unique

each

instrument

Those

manufactured

the

United

States

have

six

unique

digits

The

country

manufacture

identified

follows

B000000

Tektronix

Inc.

Beaverton

Oregon

U.S.A.

HK00000

TEKTRONIX

INC

Hong

Kong

G100000

Tektronix

Guernsey

Ltd.

Channel

Islands

E200000

Tektronix

United

Kingdom

Ltd.

Marlow

J300000

Sony

Tektronix

Japan

H700000

Tektronix

Holland

Heerenveen

The

Netherlands



LIST

ILLUSTRATIONS

LIST

TABLES

OPERATORS

SAFETY

SUMMARY

SERVICING

SAFETY

SUMMARY

SECTION

SPECIFICATION

SAFETY

CONSIDERATIONS

TABLE

CONTENTS

PERFORMANCE

CONDITIONS

SECTION

OPERATING

INFORMATION

INTRODUCTION

SAFETY

CONSIDERATIONS

LINE

FUSE

....

CONTROLS

AND

CONNECTORS

INTRODUCTION

FRONT

PANEL

CONTROLS

LEFT

SIDE

PANEL

CONTROLS

RIGHT

SIDE

PANEL

CONTROLS

OPERATING

CONSIDERATIONS

OPERATING

POWER

INFORMATION

Internal

Battery

Operation

Battery

Charging

Operation

INTENSITY

CONTROL

GRATICULE

CRT

CARE

SIGNAL

CONNECTIONS

GROUNDING

...

INPUT

COUPLING

OPERATOR'S

ADJUSTMENTS

INTRODUCTION

...

EQUIPMENT

REQUIRED

VERT

GAIN

CHECK

STEP

ATTENUATOR

BALANCE

HORIZONTAL

GAIN

CHECK

HORIZONTAL

TIMING

CHECK

FOCUS

.....

AUTO

PRESET

Page

1-1

2-1

2-2

2-3

2-5

2-6

2-7

2-8

2-9

214

Service

(

B300000

ABOVE

)

SECTION

THEORY

OPERATION

INTRODUCTION

GENERAL

DESCRIPTION

DETAILED

CIRCUIT

DESCRIPTIONS

Vertical

amplifiers

Chop

Oscillator

Vert

Mode

Switch

Vertical

and

Horizontal

Output

Amplifiers

Trigger

Generator

Auto

Preset

.....

Sweep

Generator

Single

Sweep

Storage

Power

Supply

Overvoltage

Protection

CRT

Circuit

...

SECTION

CALIBRATION

INTRODUCTION

PURPOSE

STRUCTURE

TEST

EQUIPMENT

LIMITS

AND

TOLERANCES

STEP

TITLES

....

PREPERATION

FOR

CALIBRATION

POWER

SUPPLY

AND

CRT

DISPLAY

VERTICAL

DEFLECTION

SYSTEM

TRIGGER

SYSTEM

.....

HORIZONTAL

DEFLECTION

SYSTEM

SECTION

MAINTENANCE

INTRODUCTION

...

STATIC

SENSITIVE

COMPONENTS

PREVENTIVE

MAINTENANCE

...

INTRODUCTION

GENERAL

CARE

INSPECTION

AND

CLEANING

Exterior

Interior

LUBRICATION

SEMICONDUCTOR

CHECKS

PERIODIC

READJUSTMENT

Page

3-1

3-3

3-4

3-5

3-7

3-10

4-1

4-2

4-5

4-9

4-13

4-15

5-1

5-2

5-3

5-4

214

Service

(

B300000

ABOVE

)

SECTION

MAINTENANCE

(

cont

)

TABLE

CONTENTS

(

cont

)

TROUBLESHOOTING

INTRODUCTION

TROUBLESHOOTING

AIDS

TROUBLESHOOTING

EQUIPMENT

TROUBLESHOOTING

TECHNIQUES

CORRECTIVE

MAINTENANCE

INTRODUCTION

...

MAINTENANCE

PRECAUTIONS

OBTAINING

REPLACEMENT

PARTS

...

MAINTENANCE

AIDS

INTERCONNECTIONS

TRANSISTORS

AND

INTEGRATED

CIRCUITS

.....

SOLDERING

TECHNIQUES

DISASSEMBLY

INSTRUCTIONS

REPACKAGING

FOR

SHIPMENT

SELECTABLE

COMPONENTS

Page

5-5

5-6

5-10

5-11

5-12

5-13

5-15

SECTION

OPTIONS

INTRODUCTION

OPTION

SECTION

REPLACEABLE

ELECTRICAL

PARTS

DIAGRAMS

Page

REPLACEABLE

MECHANICAL

PARTS

CHANGE

INFORMATION

6-1

Figure

2-1

2-2

3-5

3-6

3-7

The

214

Oscilloscope

Front

panel

controls

Right

side

panel

controls

3-1

Vertical

input

amplifiers

detailed

block

diagram

3-2

Vertical

and

Horizontal

output

amplifiers

detailed

block

diagram

3-3

Trigger

Sweep

Generator

detailed

block

diagram

3-4

Identification

portion

the

Sweep

Start

Holdoff

waveform

the

Single

Sweep

Board

Storage

circuit

detailed

block

diagram

Power

Supply

circuit

block

diagram

CRT

Circuit

detailed

block

diagram

Table

LIST

ILLUSTRATIONS

5-1

Location

circuit

boards

5-2

Multi

connector

holder

orientation

5-3

Location

screws

for

disassembly

5-4

Proper

method

for

wrapping

probes

5-5

Selecting

power

supply

capacitors

for

sinewave

operation

5-6

Selecting

power

supply

capacitors

for

sinewave

operation

1-1

Specifications

2-1

Test

Equipment

Test

Equipment

Required

Power

Supply

Limits

214

Service

(

B300000

ABOVE

)

LIST

TABLES

4-1

4-2

4-3

Deflection

Accuracy

Limits

4-4

Settings

for

Bandwidth

Checks

5-1

Relative

Susceptiblity

Stataic

Discharge

Damage

5-2

External

Inspection

Check

List

5-3

Internal

Inspection

Check

List

5-4

Maintenance

Aids

...

5-5

Power

Supply

Capacitors

Page

2-2

2-3

3-2

3-4

3-6

3-7

3-8

3-9

3-10

5-5

5-6

5-13

5-14

5-16

Page

1-2

2-8

4-2

4-5

4-10

4-12

5-1

5-2

5-3

5-11

5-15

iii

214

Service

(

B300000

ABOVE

)

OPERATORS

SAFETY

SUMMARY

The

general

safety

information

this

part

the

summary

for

both

operating

and

servicing

personnel

Specific

warnings

and

cautions

will

found

throughouat

the

manual

where

they

apply

but

may

not

appear

this

summary

CAUTION

statements

identify

conditions

practiaces

that

could

result

damage

the

equipment

other

property

WARNING

statements

identify

conditions

practices

that

could

result

personal

injury

loss

life

Terms

Marked

Equipment

CAUTION

indicates

personal

injury

hazard

not

immediately

accessible

one

reads

the

marking

hazard

property

including

the

equipment

itself

DANGER

indicates

personal

injury

hazard

immediately

accessible

one

reads

the

marking

Terms

This

Manual

DANGER

High

voltage

This

symbol

indicates

where

applicable

cautionary

other

information

found

Symbols

This

Manual

Symbols

Marked

Equipment

ATTENTION

refer

manual

Protective

ground

(

earth

)

terminal

Use

the

Proper

Fuse

avoid

fire

hazard

use

only

the

fuse

correct

type

voltage

rating

and

current

rating

specified

the

parts

list

for

your

product

Refer

fuse

replacement

qualified

service

personnel

Not

Operate

Explosive

Atmospheres

avoid

explosion

not

operate

this

product

explosive

atmosphere

unless

has

been

specifically

certified

for

such

operation

Not

Operate

Without

Covers

avoid

personal

injury

not

operate

this

product

without

covers

installed

214

Service

(

B300000

ABOVE

)

SERVICING

SAFETY

SUMMARY

FOR

QUALIFIED

SERVICE

PERSONNEL

ONLY

Refer

also

the

preceding

Operators

Safety

Summary

Not

Service

Alone

not

perform

internal

service

adjustment

this

product

unless

another

person

capable

rendering

first

aid

and

resuscitation

present

Use

Care

When

Servicing

With

Power

Applied

Dangerous

voltages

exist

several

points

this

product

avoid

personal

injury

not

touch

exposed

connections

components

while

power

applied

Disconnect

power

before

removing

protective

cover

soldering

replacing

components

214

Service

(

B300000

ABOVE

)

(

)

STEP

ATTEN

INPUT

COUPLING

KNO

INPUT

COUPLING

GND

STEP

ATTEN

BAL

Tektronix

POSITION

POS

POSITION

POS

READY

VAR

DAY

VAR

SINGLE

SWP

RESET

STORE

ERASE

VAR

DIV

VOLTS

DIV

214

STORAGE

OSCILLOSCOPE

CH1

(

EXT

HORZI

POWER

(

BATTERY

CH2

TRICSSO

VERT

MODE

AUTO

PRESET

LEVEL

SLOPE

2018

TRIG

Wents

PIECET

INT

INTENSITY

OFF

TRIG

SOURCE

FOCUS

MONIZ

MAS

COCH

EXT

VAR

POS

]

EXT

TRIG

Tektronix

214

Dual

Trace

Storage

Oscilloscope

COMMON

5054-01

SPECIFICATION

INTRODUCTION

The

TEKTRONIX

214

Storage

Oscilloscope

portable

500

kHz

instrument

that

combines

mall

size

and

light

weight

with

the

ability

make

precision

waveform

measurements

designed

for

general

purpose

applications

where

display

storage

desired

along

with

conventional

(

NONSTORE

)

operation

The

dual

channel

500

kHz

vertical

system

provides

vertical

deflection

factors

from

(

reduced

bandwidth

)

per

division

the

tip

either

the

integral

high

impedance

probes

Single

trace

operation

achieved

selecting

either

with

the

VERT

MODE

switch

and

dual

trace

operation

achieved

selecting

BOTH

from

the

VERT

MODE

switch

Single

Sweep

operation

provided

display

infrequently

recurring

events

The

trigger

circuit

provides

stable

triggering

over

the

full

range

vertical

frequency

response

Section

1-214

Service

(

B300000

ABOVE

)

The

horizontal

deflection

system

provides

calibrated

sweep

rates

from

500

S

per

division

Uncalibrated

sweep

rates

via

variable

sweep

magnifier

are

available

least

times

the

indicated

sweep

rate

for

maximum

least

S

per

division

Stored

Automatic

Enhance

occurs

(

Single

Sweep

mode

)

sweep

rates

0.1

per

division

and

faster

operation

provided

with

supplying

the

horizontal

deflection

the

applied

(

)

signal

with

range

from

less

than

per

division

(

reduced

bandwidth

kHz

)

suplies

the

vertical

deflection

the

applied

(

)

signal

The

214

operated

either

from

line

voltage

from

internal

rechargeable

batteries

The

internal

batteries

are

recharged

from

the

power

line

the

integral

battery

charger

(

with

the

instrument

OFF

)

PERFORMANCE

CONDITIONS

This

instrument

will

meet

the

following

electrical

characteristics

(

Table

1-1

)

after

complete

calibration

These

characteristics

apply

over

ambient

temperature

range

-15



(



131



)

when

operating

from

the

internal

batteries

and



(



104



)

when

operating

from

line

source

except

otherwise

indicated

Warm

time

for

given

accuracies

least

minutes

1-1

Specification

214

Service

(

B300000

ABOVE

)

Characteristics

Deflection

Factor

Range

Accuracy

Variable

Range

Frequency

Response

Coupled

Lower

Bandwidth

Input

Resistance

Input

Capacitance

DIV

100

DIV

Maximum

Input

Voltage

DIV

0.1

DIV

Chopped

Mode

Alternate

Mode

Input

Impedance

Matching

1-2

Table

1-1

SPECIFICATIONS

VERTICAL

DEFLECTION

SYSTEM

Performance

Requirements

DIV

1-2-5

sequence

steps

Within



with

VAR

VOLTS

DIV

control

CAL

position

and

gain

correctly

set

div

Continuously

variable

between

calibrated

maximum

deflection

factor

least

125

div

Six

division

kHz

reference

signal

with

VAR

VOLTS

DIV

control

calibrated

detent

VOLTS

DIV

Setting

DIV

DIVb

Approximately

Hz.a



Approximately

160

pF.a

Approximately

140

pF.a

600

(

peak

)

600

peak

(

MHz

less

)

aperformance

Requirement

not

checked

manual

bperformance

Requirement

not

checked

manual

above

DIV

settings

Extends

Frequency

Response

100kHz

200kHz

400kHz

500kHz

600

(

peak

)

600

peak

(

not

over

kHz

risetime

100

)

within

From

500

DIV

time

rate

approximately

kHz.a

From

DIV

S

DIV

time

rate.a

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