Tektronix 7613 User manual

TEKTROND©

7613/R7613

STORAGE

OSCILLOSCOPE

SERVICE

INSTRUCTION

MANUAL

BEFORE

READING

PLEASE

CHECK

FOR

CHANGE

INFORMATION

THE

REAR

THIS

MANUAL.

Tektronix,

Inc.

070-

1463-00

THIS

MANUAL

REPRINTED

OCT

1974

TEKTRONIX

7B613/R7613

STORAGE

OSCILLOSCOPE

SERVICE

INSTRUCTION

MANUAL

P.O.

Box

500

Beaverton,

Oregon

97005

972

7613

WARRANTY

All

TEKTRONIX

instruments

are

warranted

against

defective

materials

and

workmanship

for

one

year.

Any

questions

with

respect

the

warranty

should

taken

with

your

TEKTRONIX

Field

Engineer

representative.

All

requests

for

repairs

and

replacement

parts

should

directed

the

TEKTRONIX

Field

Office

representative

your

This

will

assure

you

the

fastest

possible

service.

Please

include

the

instrument

Type

Number

Part

Number

and

Serial

Number

with

all

requests

for

parts

service.

Specifications

and

price

change

privileges

reserved.

1972

Tektronix,

Inc.,

Beaverton,

Oregon.

Printed

the

United

States

America.

All

rights

reserved.

Contents

this

publication

may

not

reproduced

any

form

without

permission

Tektronix,

Inc.

U.S.A.

and foreign

TEKTRONIX

products

covered

U.S.

and foreign

patents

and/or

patents

pending.

TEKTRONIX

is a

registered

trademark

Tektronix,

Inc.

7613

SECTION

TABLE

CONTENTS

OPERATING

INFORMATION

Controls

And

Connectors

CALIBRATION

Test

Equipment

Required

Index

Calibration

Procedure

CIRCUIT

DESCRIPTION

Block

Diagram

7613

Basic

Storage

Block

Diagram

MAINTENANCE

Preventive

Maintenance

Circuit

Board

Locator

Troubleshooting

Chart

Corrective

Maintenance

ELECTRICAL

PARTS

LIST

DIAGRAMS

MECHANICAL

PARTS

LIST

7613/R7613

Service

Page

1-1

2-2,

2-3

2-4

3-1

3-2

3-50

4-1

4-4,

4-5

4-10

7613

The

TEKTRONIX

7613

Storage

Oscilloscope

solid-state,

light-weight

instrument

designed

for

general

purpose

applications.

This

instrument

has

three

plug-in

compartments

that

TEKTRONIX

7000-Series

plug-in

units

form

complete

measurement

system. The two

plug-in

compartments

the

left

are

for

vertical

preamplifiers.

The

right

plug-in

compartment

connected

the

horizontal

deflection

system.

Electronic

switching

used

connect

either

vertical

plug-in

the

vertical

deflection

system.

possible

alternately

display

the

vertical

signals

(multi-trace

display).

The

flexibility

this

plug-in

feature

and

variety

plug-in

units

available

allow

this

system

used

for

many

measurement

applications.

This

instrument

features

large

screen,

division

display;

each

division

equals

0.9

centimeter.

The

Cathode

ray

tube

(CRT)

provides

small

spot

size

and

fast

storage writing

speed.

Storage

operation

uses

variable

Persistence

mode

and

Save

mode.

The

variable

Persistence

mode

electrically

controls

the

retention

the

CRT.

The

Save

mode

provides

longer

retention

the

stored

display,

and

lockout

function

prevent

accidental

erasure

the

stored

display.

7613/R7613

7613

Section

1—7613/R7613

Service

OPERATING

INFORMATION

The

7613/R7613

can

operated

from

either

110-volt

220-volt

line

source.

addition,

three

operating

ranges

can

selected

jumper

located

on the

Rectifier

board.

Select

range

which

centered

about

the

average

line

volt-

age

which

the

instrument

connected.

See

Table

1-1

for

ranges

and

proper

fuses.

TABLE

1-1

Regulating

Range

and

Fuse

Data

Pins

Regulating

Range

Selected

110-volt

nominal

220-volt

nominal

LOW

110

volts

180

220

volts

MED

121

volts

198

242

volts

108

132

volts

218

262

volts

Line

fuse

3.2

slow-blow

1.6

slow-blow

The

7613

can

operated

where

the

ambient

air

temperature

between

0°

and

+50°C.

The

instrument

cooled

forced

air.

Adequate

clearance

must

provided

back

and

bottom

the

instrument.

The

R7613

cooled

forced

air.

Adequate

clearance

must

provided

behind

the

air

filter

and

the

right

side.

thermal

cutout

the

instrument

provides

thermal

protection

interrupting

the

power

the

instrument

the

internal

temperature

exceeds

safe

operating

level.

OPERATING

SET-UP

INFORMATION

INTENSITY

Midrange

READOUT

Midrange

FOCUS

Well

defined

display

STORED

INTENSITY

Midrange

PERSISTENCE

Midrange

SAVE

TIME

Clockwise

STORE

Out

(release)

SAVE

Out

(release)

NON-STORE

(pressed

in)

VERT

MODE

LEFT

(pressed

in)

TRIG

SOURCE

VERT

MODE

GRATICULE

ILLUM

desired

POWER

{pulled

out)

Display

Modes

Install

two

vertical

plug-in

units

into

the

vertical

com-

partments.

Set

the

deflection

factor

for

two

volts/division.

Connect

the

calibrator

signal

both

vertical

plug-in

units.

Use

jack

BNC

connector

and

dual

input

coupler

connector.

[Install

time-base

plug-in

unit

the

horizontal

compartment.

Set the

time/division

switch

0.5

millisecond/division,

and

adjust

the

trigger

level

for

stable

display.

The

left

vertical

signal

displayed.

Press

the

RIGHT

button

the

VERT

MODE

switch.

The

display

should

stable

for

either

vertical

unit

selected.

Press

the

ALT

button

the

VERT

MODE

switch.

Adjust

the

position

controls

each

vertical

unit

that

two

displays

are

present

the

CRT

screen.

One

vertical

signal

displayed

per

sweep

and

the

other

vertical

signal

displayed

the

sweep.

This

dual

trace

mode.

Press

the

CHOP

button

the

VERT

MODE

switch.

dua!

trace

will

displayed

the

CRT

screen,

Each

verti-

cal

signal

displayed

during

the

sweep,

time-sharing

basis.

Press

the

ADD

button

the

VERT

MODE

switch.

The

display

the

algebraic

sum

both

vertical

signals.

Stored

Displays

Obtain

display

following

the

instructions

under

OPERATING

SET-UP

INFORMATION

and

Display

Modes.

Press

the

STORE

button,

the

instrument

the

vari-

able

persistence

mode.

Change

the

vertical

position,

and

note

that

the

stored

display

will

fade out

and

the

new

Position

will

stored.

The

time

that

display

stored

the

screen

the

CRT

controlled

the

PERSISTENCE

contro!

(clockwise

decreases

the

retention).

Press

the

SAVE

button.

All

functions

are

locked

out

except

the

SAVE

TIME

control

and

the

STORED

INTEN-

SITY

control.

The

STORED

INTENSITY

controls

the

brightness

the

stored

display.

The

SAVE

TIME

controls

the

length

time

that

display

stored.

When

the

SAVE

TIME

control

MAX

and

the

switch

detent

(mini-

mum

intensity)

the

display

not

visible.

Turning

the

SAVE

TIME

control

clockwise

will

make

the

stored

display

visible,

but

will

reduce

the

storage

time.

While

the

MAX

save

mode,

the

stored

information

will

remain

stored

for

long

periods

time

even with

the

power

turned

off.

Turn

the

instrument

on,

and

adjust

the

SAVE

TIME

control

setting

for

visible

display.

Care

Storage

Screen

Use

minimum

beam

intensity

produce

clear

well

defined

display.

Avoid

repeated

use

the

same

area

the

CRT.

not

leave

stored

display

the

screen

when

longer

needed.

Use

MAX

SAVE

when

storing

display

for

extended

periods

time

(minimum

intensity).

Operate

the

NON-STORE

mode

unless

storage

required.

BEAM

FINDER

The

BEAM

FINDER

switch

provides

means

locating

display

which

overscans

the

viewing

area.

Press

and

hold

the

BEAM

FINDER

switch

in.

Increase

the

vertical

and

horizontal

deflection

factors

until

the

display

reduced

about

two

divisions,

and

adjust

the

horizontal

and

vertical

position

contro!

settings

center

the

display.

Release

the

switch

for

normal

operation.

For

detailed

operating

instructions

see

the

7613/

R7613

Operators

Manual.

1-1

7613

Operating

Information—7613/R7613

Service

FUNCTIONS

CONTROLS

AND

CONNECTORS

FRONT

PANEL

INTENSITY—Controls

brightness

the

display.

Control

inoperative

when

hori-

zontal

compartment

vacant.

READOUT—Turns

the

readout

display

and

controls

the

readout

intensity.

FOCUS-Provides

adjustment

for

optimum

display

definition.

GRATICULE

ILLUM-—Controls

graticule

illumination.

BEAM

FINDER—When

pressed,

the

display

limited

within

the

graticule

area.

TRIG

SOURCE-Selects

source

internal

trigger

signal

for

the

time

base

plug-in

the

horizontal

compartment.

LEFT:

The

trigger

signal

obtained

from

the

plug-in

unit

the

left

vertical

compartment

only.

VERT MODE:

Trigger

signal

automatically

follows

the

vertical

display

except

CHOP

and

ADD;

then

the

trigger

signal

the

algebraic

sum

the

signals

from

the

left

and

right

vertical

compartments.

RIGHT:

The

trigger

signal

obtained

from

the

plug-in

unit

the

right

vertical

compartment

only.

(4)

vertical

compartments

are

algebraically

added

and

the

sum

displayed

the

CRT.

CHOP:

Signals

from

plug-in units

both

the

left

and

right

vertical

compartments

are

displayed

(dual

trace).

The

display

switched

between

vertical

plug-in

units

approximately

one

megahertz

rate.

RIGHT:

Signals

from

plug-in

unit

right

vertical

compart-

ment

displayed.

NON-STORE

—Selects

non-store

operation.

STORE-Selects

storage

operation.

PERSISTENCE—Controls

the

retention

the

stored

display.

SAVE-—Prevents

accidental

erasure

additional

storage

information.

SAVE

TIME—Used

with

the

SAVE

mode

for

extending

re-

tention.

When

the

MAX

detent

there

visible

stored

dis-

play

all

storage

modes.

STORED

INTENSITY—Selects

stored

writing

speed

and

view

time

combination

(controls

brightness

stored

display).

Camera

Power

(Not

Labeled)—Three-pin

connector

CRT

bezel

provides

power

output

(+15

V).

Receives

remote

single

sweep

reset

signal

from

compatible

camera

systems,

and

ground

connection.

ERASE-—Erases

stored

display.

10.

POWER-Switch

controls

the

power

the

instrument.

Light

indicates

that

the

power

switch

and

that

the

instrument

connected

line

voltage source.

CALIBRATOR-Calibrator

output

jacks

(4V,

0.4V,

13,

mV,

and

ground).

Positive-going

pulse

voltage

selected

changing

internal

jumper.

14,

VERT

MODE-Selects

vertical

mode

operation.

LEFT:

Signals

from

plug-in

unit

left

vertical

compartment

15,

are

displayed.

ALT:

Signals

from

both

plug-in

units

both

the

left

and

16.

right

vertical

compartments

are

displayed

(dual

trace).

Display

switches

between

vertical

plug-in

units

after

each

sweep.

ADD:

Signals

from

plug-in

units

both

the

left

and

right

17.

REAR PANEL

FUSE-—Line

voltage

fuse.

REMOTE

ERASE

IN-Provides

external

connection

for

remote

erase.

EXT

RESET

IN—Remote

single

sweep

reset.

EXT

AXIS

IN-Input

for

intensity

modulation

the

CRT

display.

VERT

SIG

OUT—Vertical

signal

selected

TRIG

SOURCE

switch

(LEFT,

RIGHT,

ALT

and

ADD).

+GATE

OUT-Gate

signal

selected

gate

selector

switch

(Main,

Auxiliary,

and

Delay).

+SAWTOOTH

OUT-—Positive-going

sawtooth

from time-base

unit.

1-2

7613

Section

2—7613/R7613

Service

CALIBRATION

Calibration

Interval

assure

instrument

accuracy,

check

the

calibration

the

7613

every

1000

hours

operation,

every

six

months

used

infrequently. Before

complete

calibration,

thoroughly

clean

and

inspect

this

instrument

outlined

the

Maintenance

section.

TEKTRONIX

Field

Service

Tektronix,

Inc.

provides

complete

instrument

repair

and

recalibration

local

Field

Service

Centers

and

the

Factory

Service

Center.

Contact

your

local

TEKTRONIX

Field

Office

representative

for

further

information.

Using

This

Procedure

General.

This

section

provides

several

features

facili-

tate

calibration

the

7613.

These

are:

index.

index

given

preceding

the

calibration

procedure

aid

locating

step.

Partial

Procedure.

partial

calibration

often

desirable

after

replacing

components,

touch

the

adjustment

portion

the

instrument

between

major

recalibra-

tions.

calibrate

only

part

the

instrument,

set

the

controls

given

under

Preliminary

Control

Settings

and

start

with

the

nearest

Equipment

Required

list

preceding

the

desired

portion.

prevent

unnecessary

recalibration

other

parts

the

instrument,

re-adjust

only

the

tolerance

given

the

CHECK-

part

the

step

not

met.

re-adjustment

necessary,

also

check

the

calibration

any

steps

listed

the

INTERACTION-

part

the

step.

Complete

Calibration

Procedure.

Completion

each

step

the

following

calibration

procedure

insures

that

this

instrument

both

correctly

adjusted

and

performing

within

all

given

tolerances.

IMPORTANT

NOTE

All

waveforms

shown

this

section

were

taken

with

TEKTRONIX

Oscilloscope

Camera

System,

unless

noted

atherwise.

TEST

EQUIPMENT

REQUIRED

General

The

test

equipment

and

accessories,

its

equivalent,

given

the

Test

Equipment

table

required

for

complete

calibration

the

7613.

Specifications

given

for

the

test

equipment

are

the

minimum

necessary

for

accurate

calibra-

tion.

Therefore,

the

specifications

any

test

equipment

used

must

meet

exceed

the

listed

specifications.

All

test

equipment

assumed

correctly

calibrated

and

operating

within

the

listed

specification.

Detailed

operating

instructions

for

the

test

equipment

are

not

given

this

procedure.

Refer

the

instruction

manual

for

the

test

equipment

information

needed.

Special

Calibration

Fixtures

Special

TEKTRONIX

calibration

fixtures

are

used

this

procedure

only

where

they

facilitate

instrument

calibration.

These

special

calibration

fixtures

are

available

from

Tektronix,

Inc.

Order

part

number

through

your

local

TEKTRONIX

Field

Office

representative.

Calibration

Equipment

Alternatives

All

the

listed

test

equipment

required

completely

check

and

adjust

this

instrument.

This

Calibration

procedure

based

the

first

item

equipment

given

example

applicable

equipment.

When

other

equipment

substituted,

control

settings

calibration

setup

may

need

altered

slightly

meet

the

requirements

the

substitute

equipment.

the

exact

item

test

equipment

given

example

the

Test

Equipment

table

not

available,

first

check

the

Specifica-

tions

column

carefully

see

any

other

equipment

available

which

might

suffice.

Then

check

the

Usage

column

see

what

this

item

test

equipment

used

for.

used

for

check

adjustment

which

little

importance

your

measurement

requirements,

the

item

and

corresponding

step(s)

can

deleted.

The

following

procedure

written

completely

check

and

adjust

the

7613

the

limits

given

Section.

the

Operators

Manual

and

allow

interchanging

7000-series

plug-in

units

between

7000-series

mainframes

without

the

need

recalibrate

the

instruments

each

time.

the

applications

for

which

you

will

use

the

7613

not

require

the

full

available

performance

from

the

7613/plug-in

combination,

this

procedure

and

the

required

equipment

list

can

shortened

accordingly.

For

example,

the

basic

measurement

capabilities

this

instrument

can

verified

checking

vertical

deflection

accuracy,

vertical

square-wave

response,

and

basic

horizontal

timing

with

7000-series

real-time

plug-in

units

and

accurate

square

wave

signal.

Also,

the

7613/plug-in

combination

used

fixed

system

without

the

need

interchange

plug-in

units,

all

tests

can

made

substituting

vertical

plug-in

units

and

applicable

test

signals

for

the

067-0587-01

mainframe

standardizer

calibration

fixture.

2-1

7613

Calibration—-7613/R7613

Service

TEST

EQUIPMENT

Examples

Applicable

Description

Minimum

Specifications

Usage

Test

Equipment

Precision

Range,

zero

150

volts;

Calibrator

output

accuracy

TEKTRONIX

7D13

Digital

voltmeter

accuracy,

within

0.2%.

check

and

adjustment.

Multimeter

(test

oscilloscope

must

Low-voltage

power

supply

have

Readout

System).

adjustment.

Fluke

Model

825A

Differential

Voltmeter.

voltmeter

(VOM)

Range,

zero

4000

volts;

accuracy,

checked

with-

—1500

volts.

High-voitage

power

supply

check.

Z-axis

levels

adjustment.

Triplett

Model

630-NA.

Simpson

Model

262.

Time-mark

Marker

outputs,

nano-

CRT

geometry

check

and

TEKTRONIX

2901

Time-Mark

generator

seconds

0.1

second;

adjustment.

Horizontal

Generator.

marker

accuracy,

within

timing

check

and

adjustment.

0.1%.

Trigger

output,

one

TEKTRONIX

184

Time-Mark

millisecond.

Generator.

High-frequency

Frequency,

above

Vertical

bandwidth

check.

TEKTRONIX

calibration

fixture

constant

amplitude

190

megahertz,

reference

Vertical

amplifier

isolation

067-0532-01

recommended.

signal

generator

frequency,

megahertz |

check.

output

amplitude

variable

from

0.5

volt

volts;

amplitude

accuracy,

with-

reference

output

frequency

changes.

Medium-fre-

Frequency,

mega-

External

Z-axis

operation

ja.

TEKTRONIX

191

Constant

Ampli-

quency

constant-

hertz;

reference

frequency,

check.

Vertical

bandwidth

tude

Signal

Generator.

amplitude

signal

generator

sikilohertz;

output

amplitude,

variable

from

five

millivolts

five

volts

peak

into

ohms;

amplitude

accuracy,

constant

within

reference

output

frequency

changes.

check.

Vertical

amplifier

iso-

lation

check.

Horizontal

bandwidth

check.

General

Radio

1215-C

with

1263-C

Amplitude

Regulating

Power

Supply.

Low-frequency

signal

generator

Frequency,

kilohertz;

output

amplitude,

variable

from

100

miltivolts.

X-Y

phase

shift

check.

General

Radio

1310-B

Oscillator.

Test-oscilloscope

system

(dual-trace)

Bandwidth,

megahertz;

minimum

de-

flection

factor,

millivolts/division;

accuracy,

within

3%.

Horizontal

limit

centering

ad-

justment

and

GATE

OUT.

TEKTRONIX

7503

7504

Oscil-

loscope

with

two

7A15A

7A16

Amplifier

and

7B50

7B53A

Time-

Base

plug-in

units,

and

two

P6053

Probes.

TEKTRONIX

453A

Oscilloscope

with

two

P6054

Probes.

Vertical

plug-in

unit

(two

identical

units

required),

and

dual

display

vertical

unit.

TEKTRONIX

7A-series

megahertz

bandwidth

required

for

complete

pro-

cedure

written.

Used

throughout

procedure

provide

vertical

input

7613

under

calibration.

Identical

units

required

only

for

X-Y

phase

shift

check.

The

7A18

used

check

READOUT

operation.

TEKTRONIX

7A15A

and

7A18

Amplifier

(may

shared

with

7000-series

test

oscilloscope)

Any

7A-series

plug-in

unit

(tole-

rances

some

steps

may

limited

low-frequency

units

used).

2-2

7613

TEST

EQUIPMENT

(cont)

Calibration—-7613/R7613

Service

Examples

Applicable

Description

Minimum

Specifications

Usage

Test

Equipment

Time

base

TEKTRONIX

7B-series.

Used

through

procedure

TEKTRONIX

7B53A

7B52

plug-in

unit

provide

sweep.

Time

Base.

Any

7B-series

plug-in

unit.

10.

Mainframe

standardizer

cali-

bration

fixture

Produces

gain-check

and

pluse-response

waveforms.

Used

throughout

procedure

standardize

instrument

plug-in

units

can

inter-

changed

without

complete

recalibration.

TEKTRONIX

Calibration

Fixture

067-0587-01.

Calibrated

7000-series

plug-in

units

with

suitable

signal

sources

may

substituted

lower

perforrnance

acceptable.

11.

10X

passive

Compatible

with 7B-series

Chopped

mode

operation

TEKTRONIX

P6053

P6054

probe

external

trigger

input.

check

(adjustment

pro-

Probe

(may

shared

with

test

cedure).

oscilloscope).

12.

connector

Connectors,

BNC.

External

Z-axis

operation

ja.

TEKTRONIX

Part

No.

check.

103-0030-00.

13.

Termination

impedance,

ohms;

Horizontal

timing

check

and

|}a.

TEKTRONIX

Part

No.

accuracy,

+2%;

connec-

adjustment.

X-Y

phase

shift

011-0049-01.

tors,

BNC.

check,

14,

Dual-input

Connectors,

BNC.

Added

operation

check.

X-Y

TEKTRONIX

Calibration

Fixture

coupler

phase

shift

check.

067-0525-00.

15.

Cable

(two

Impedance,

ohms;

Used

throughout

procedure

ja.

TEKTRONIX

Part

No.

required)

type,

RF-58/U;

length,

for

signal

interconnection.

012-0076-00

(18-inch).

TEKTRONIX

and

inches;

connectors,

Part

No.

012-0057-01

(42-inch).

BNC.

16.

in-line

Impedance,

ohms;

External

Z-axis

operation

|a.

TEKTRONIX

Part

No.

termination

accuracy,

+2%;

connec-

check.

Vertical

bandwidth

017-0083-00.

tors,

GR874

input

with

check.

Vertical

amplifier

iso-

BNC

male

output.

lation

check.

Horizontal

bandwidth

check.

17.

Cable

Impedance,

ohms;

type

External

Z-axis

operation

ja.

TEKTRONIX

Part

No.

RG-213/U:

electrical

| check.

Vertical

bandwidth

017-0502-00.

length,

five

nanoseconds;

;

check.

Vertical

amplifier

iso-

connectors,

GR874.

lation

check.

Horizontal

bandwidth

check.

Adapts

jacks

BNC

Added

operation

check.

Trig)

|a.

TEKTRONIX

Part

No.

18.

BNC

pin-

jack

cable

male

connector.

ger

source

operation

check.

Astigmatism

adjustment.

175-1178-00

(one

supplied

standard

accessory).

19.

Screwdriver

Three-inch

shaft,

inch

bit.

3/32-

Used

throughout

adjustment

procedure

adjust

variable

resistors.

Xcelite

R-3323.

20.

Low-capacitance

screwdriver

1/2-inch

shaft.

Used

throughout

adjustment

procedure

adjust

variable

capacitors.

TEKTRONIX

Part

No.

003-0000-00.

7613

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