Tektronix 7623A User manual

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TEKTROND©

INSTRUCTION

MANUAL

Tektronix,

Inc.

P.O.

Box

500

Beaverton,

Oregon

97005

Serial

Number

070-1684-00

First

Printing

April

1974

Fam

7623A/R7623A

Operators

TABLE

CONTENTS

LIST

ILLUSTRATIONS

LIST

TABLES

SECTION

OPERATING

INSTRUCTIONS

PRELIMINARY

OPERATION

POWER

SOURCES

POWER

CORD

OPERATING

VOLTAGE

OPERATING

TEMPERATURE

RACKMOUNTING

PLUG-IN

UNITS

PLUG-IN

INSTALLATION

AND

REMOVAL

CONTROLS

AND

CONNECTORS

FRONT

PANEL

CONTROLS

AND

CONNECTORS

REAR

PANEL

CONTROLS

AND

CONNECTORS

OPERATING

CHECKOUT

GENERAL

SET-UP

INFORMATION

DISPLAY

FOCUS

TRACE

ALIGNMENT

GRATICULE

ILLUMINATION

VERTICAL

DEFLECTION

SYSTEM

TRIGGERING

‘

HORIZONTAL

DEFLECTION

SYSTEM

STORAGE

OPERATION

BEAMFINDER

Z-AXIS

INPUT

GENERAL

OPERATING INFORMATION

INTENSITY

CONTROL

DISPLAY

FOCUS

GRATICULE

LIGHT

FILTER

BEAMFINDER

Page

1-1

1-3

1-4

1-5

1-6

1-8

1-10

-11

-12

-13

-16

—

= =

= = =

-16

-17

-18

—

—_2

—

= —

7623A/R7623A

Operators

TABLE

CONTENTS

(cont.)

Page

READOUT

MODES

1-19

DISPLAY

PHOTOGRAPHY

1-19

STORAGE

1-20

CARE

STORAGE

SCREEN

1-21

VERTICAL

MODE

1-22

TRIGGER

SOURCE

1-23

X-Y

OPERATION

1-24

INTENSITY

MODULATION

1-24

RASTER

DISPLAY

1-25

CALIBRATOR

1-25

SIGNALS

OUT

1-26

APPLICATIONS

1-27

SECTION

SPECIFICATIONS

2-1

INTRODUCTION

2-1

STANDARD

ACCESSORIES

2-9

SECTION

RACKMOUNTING

INSTRUCTIONS

3-1

INTRODUCTION

3-1

INSTALLATION

INSTRUCTIONS

3-1

RACK

DIMENSIONS

3-1

SLIDE-OUT

TRACKS

3-2

MOUNTING

PROCEDURE

3-4

REMOVING

INSTALLING

THE

INSTRUMENT

3-5

SLIDE-OUT

TRACK

LUBRICATION

3-5

SECTION

OPTIONS

4-1

LIST

ILLUSTRATIONS

FRONTISPIECE

Figure

1-1.

Location

voltage-selector

jumper.

Figure

1-2.

Front

panel

controls

and

connectors.

Figure

1-3.

Rear

panel

controls

and

connectors.

Figure

1-4.

Definition

measurement

lines

the

graticule.

Figure

1-5.

Location

Readout

Mode

switch.

Figure

1-6.

Location

Calibrator

jumper on

Storage

circuit

board.

Figure

3-1.

Slide

out

track

assembly

and

mounting

hardware.

Figure

3-2.

Vertical

mounting

position

of the

left

stationary

section

and

the

securing

hole

location.

These

dimensions

also

apply

to the

right

front

rail.

Figure

3-3.

Details

for

mounting

stationary

sections.

Figure

3-4.

Installing

and

removing

the

instrument.

Figure

3-5.

Adjusting

the

slide

out

tracks

for

smooth

sliding

action.

Figure

3-6.

Dimensional

drawing.

LIST

TABLES

TABLE

1-1.

Power

Cord

Color

Coding

TABLE

1-2.

Regulating

Range

and

Fuse

Data

TABLE

2-1.

ELECTRICAL

TABLE

2-2.

ENVIRONMENTAL

TABLE

2-3.

PHYSICAL

TABLE

2-4.

SYSTEM

SPECIFICATIONS

7623A/R7623A

Operators

Page

1-2

1-5

1-9

1-17

1-19

1-26

3-1

3-2

3-3

3-4

3-5

3-6

1-1

1-3

2-8

2-10

7623

OSCHLOSCOP!

The

Tektronix

7623A/R7623A

Storage

Oscilloscope

solid-state

instrument

designed

for

fast

writing

rate

storage

applications.

The

7623A

operates

three

display

modes—NON

STORE,

and

SAVE,

and

has

four

storage

modes—

BISTABLE,

VAR

PERSIST,

FAST

BISTABLE,

and

FAST

VAR

PERSIST.

This

instrument

has

three

plug-in

compartments

that

any

7-series

plug-in

units

form

highly

flexible

measurement

system.

7623A/R7623A

Operators

—_

Section

1—7623A/R7623A

Operators

OPERATING

INSTRUCTIONS

PRELIMINARY

OPERATION

effectively

use

the

7623A/R7623A

Storage

Oscilloscope,

the

operation

and

capabilities

the

instru-

ment

must

known.

This

section

provides

preliminary

operating

information,

describes

operation

con-

trols

and

connectors,

and

provides

operating

checkout

procedure.

POWER

SOURCES

This

instrument

intended

be operated

from

single-phase,

earth-referenced

power

source

having

one

current-carrying

conductor

(the

Neutral

Conductor)

near

earth

potential.

Operation

from

power

sources

where

both

current-carrying

conductors

are

live

with

respect

earth

(such

phase-to-phase

three-wire

system)

not

recommended

since

only

the

Line

Conductor

has

over-current

(fuse)

protection

within

the

instrument.

POWER

CORD

This

instrument

has

three-wire

power

cord

with

three-terminal

polarized

plug

for

connection

the

power

source

and

safety-earth.

The

safety-earth

terminal of the

plug

directly

connected

the

in-

strument

frame.

For

electric-shock

protection,

insert

this

plug

only

mating

outlet

with

safety-earth

contact

otherwise

connect

the

frame

safety

earth

system.

The

color-coding

the

cord

conductors

accordance

with

recognized

standards

shown

Table

1-1.

TABLE

1-1

Power

Cord

Conductor

Identification

Conductor

Color

Alternate

Color

Ungrounded

(Line)

Brown

Black

Grounded

(Neutral)

Blue

White

Grounding

(Earthing)

Green-Yellow

The

7623A/R7623A

can

operated

from

either

110-volt

220-volt

nominal

line-voltage

source.

addition,

three

operating

ranges

can

selected

within

each

nominal

line

voltage

source.

Use

the

follow-

ing

procedure

obtain

correct

instrument

operation

from

the

line

voltage

available:

Disconnect

the

instrument

from

the

power

source.

Remove

the

six

screws

securing

the power

unit

(nine

screws

the

R7623A;;

see

Figure

1-1).

Slide

the

power

unit

out

the

rear

the

chassis.

REV.

NOV.

1976

1-1

Operating

Instructions—7623A/R7623A

Operators

POWER

UNIT

SECURING

SCREWS

ALT

SPARE

VOLTAGE-SELECTOR

FUSE

JUMPER

Figure

1-1.

Location

voltage-selector

jumper.

convert

from

110-volts

220-volts

nominal

line

voltage,

vice

versa,

remove

the

voltage-

selector

jumper

and

replace

with

the

spare

jumper

stored

the

pins

adjacent

the

voltage

selector

area

(see

Figure

1-1).

The

jumpers

are

color

coded

indicate

the

nominal

voltage

for

which

they

are

in-

tended;

brown

for

110-volt

nominal

operation

and

red

for

220-volt

nominal

operation.

Change

the

fuse

provide

protection

for

the

selected

nominal

line

voltage.

Use

the

fuse

located

the

Alt

Fuse

holder

the

Rectifier

board

(see

Figure

1-1

for

fuse location

and

Table

1-2

for

fuse

type).

Also,

change

the

line-cord

plug

match

the

power-source

receptacle

use

suitable

adapter.

1-2

Operating

Instructions—7623A/R7623A

Operators

convert

the

instrument

from

one

regulating

range

to another,

remove

the

voltage

selector

jumper

and

re-install

the

set

pins

corresponding

the

desired

regulating

range.

The

proper

reg-

ulating

range

will

center

about

the average

line

voltage

which

the

instrument

connected

(see

Table

1-2).

TABLE

1-2

Regulating

Range

and

Fuse

Data

Pins

Regulating

Range

Selected

110-volts

(nominal)

220-volts

(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

OPERATING

TEMPERATURE

The

7623A

can

operated

where

the

ambient

air

temperature

between

0°C

and

+50°C.

This

in-

strument

can

stored

ambient

temperatures

between

—55°C

and

+75°C.

After

storage

temperatures

beyond

the

operating

limits,

allow

the

chassis

temperature

come

within

the

operating

limits

before

power

applied.

The

7623A

cooled

air

drawn

through

the

top,

side,

and

bottom

panels

and

exhausted

through

the

rear

panel.

Components

that

require

most

cooling

are

mounted

externally

heat

radiator.

Adequate

clearance

must

provided

all

sides

allow

heat

dissipated

from

the

instrument.

not

block

restrict

the

air

flow

through

the

holes

the cabinet

the

heat

radiator.

Maintain

the

clearance

provided

the

feet

the

bottom

and

allow

about

two

inches

clearance

the

top,

sides,

and

rear

(more

possible).

The

R7623A

cooled

air

drawn

through

the

air

filter

the

rear

panel

and

exhausted

through

ports

the

right

side

the

instrument.

Adequate

clearance

must

provided

these

locations.

Allow

least

one

and

one-half

inches

clearance

behind

the

air

filter

and

least

one

inch

the

right

side.

thermal

cutout

interrupts

power

the

instrument

the

internal

temperature

exceeds

safe

oper-

ating

level.

Power

automatically

restored

when

the

temperature

returns

safe

level.

Operation

confined

areas

heat

source

may

cause

the

thermal

cutout

open.

RACKMOUNTING

Instructions

and

dimensional

drawings

for

rackmounting

the

R7623A

are

located

Section

1-3

Operating

Instructions—7623A/R7623A

Operators

PLUG-IN

UNITS

The

7623A

will

three

7-series

plug-in

units.

This

plug-in

feature

permits

variety

display

combinations

and

also

allows

selection

bandwidth,

sensitivity,

display

mode,

etc.

meet

many

measurement

requirements.

addition,

allows

expansion

the

oscilloscope

system

meet

future

measurement

requirements.

The

overall

capabilities

the

resultant

system

are

large

part

determined

the

characteristics

the

plug-in

selected.

For

complete

information

plug-ins

available

for

use

with

this

instrument,

see

the current

Tektronix,

Inc.,

catalog.

PLUG-IN

INSTALLATION

AND

REMOVAL

install

plug-in

unit

into

one

the

plug-in

compartments,

align

the

slots

the

top

and

bottom

the

plug-in

with

the

associated

guide

rails

the

plug-in

compartment.

Push

the

plug-in

unit

firmly

into

the

plug-in

compartment

until

locks

into

place.

remove

plug-in,

pull

the

release

latch

the

plug-in

unit

disengage

and

pull

the

unit

out

the

plug-in

compartment.

Plug-in

units

can

removed

in-

stalled

without

turning

off

the

instrument

power.

not

necessary

that

all

the

plug-in

compartments

filled

operate

the

instrument;

the

only

plug-in

units

needed

are

those

required

for

the

measurement

made.

However,

environmental

ex-

tremes,

excess

radiation

may

radiated

into

out

this

instrument

through

the

open

plug-in

compart-

ments.

Blank

plug-in

panels

are

available

from

Tektronix,

Inc.,

cover

the

unused

compartment;

order

Part

No.

016-0155-00.

When

the

7623A

calibrated

accordance

with

the

calibration

procedure

given

the

Service

manual,

the

vertical

and

horizontal

gains

are

standardized.

This

allows

calibrated

plug-in

units

changed

from

one

plug-in

compartment

another

without

recalibration.

However,

the

basic

calibration

the

individual

plug-in

units

should

checked

when

they

are

installed

this

system

verify

their

measurement

accuracy.

See

the

plug-in

unit

instruction

manual

for

verification

procedure.

Special

purpose

plug-in

units

may

have

specific

restrictions

regarding

the

plug-in

compartments

which

they

can

installed.

This

information

will

given

the

instruction

manual

for

these

plug-in

units.

1-4

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