Tektronix 4923 User manual

TektronbDc

COMMIT

TED

EXCELLENCE

4923

DIGITAL

CARTRIDGE

TAPE

RECORDER

Box

soy"

——

USER‘S

MANUAL

Beaverton,

Oregon

—

97077

MANUAL

PART

NO.

070—1908—01

First

Printing

JUN

1975

This

Printing

FEB

1979

WARRANTY

Tektronix

warrants

the

original

purchaser

that

this

product

and

options,

excluding

customer

supplied

equipment,

free

from

defects

materials

and

workmanship,

under

normal

use,

for

period

one

(1)

year

from

the

date

shipment.

Tektronix

will,

its

option,

repair

replace

the

product

Tektronix

determines

defective

within

the

warranty

period,

and

returned,

freight

prepaid,

Tektronix Service

Center.

the

forty—eight

(48)

contiguous

United

States

and

the

District

Columbia,

and

other

areas

where

Trktronix

normally

has

service

available

for

this

product,

Tektronix

will

provide

on—site

warranty

service

charge

during

the

first

ninety

(90)

days

from

the

date

shipment.

Tektronix

shall

under

obligation

furnish

warranty

service

if:

Attempts

repair

service

the

product

are

made

personnel

other

than

Tektronix

service

representatives.

Modifications

are

made

the

hardware

software

personnel

other

than

Tektronix

representatives.

Damage

results

from

connecting

the

product

incompatible

equipment.

There

implied

warranty

fitness

for

particular

purpose.

Tektronix

not

liable

for

consequential

damages.

Specifications

and

price

change

privileges

reserved.

U.S.A.

and

foreign

Tektronix

products

covered

U.S.

and

foreign

patents

and/or

patents

pending.

TEKTRONIX

registered

trademark

Tektronix,

Inc.

1975,

1977

Tektronix,

Inc.,

Beaverton,

Oregon.

Printed

the

United States

America.

All

rights

reserved.

Contents

this

publication

may

not

reproduced

any

form

without

permission

Tektronix,

Inc.

SECTION

DESCRIPTION

About

This

Manual

Introduction

....

Standard

Accessories

Optional

Accessories

4923

Configurations

Manual

Controls

and

Indicators

Characteristics

....

TABLE

CONTENTS

SECTION

INSTALLATION

and

OPERATION

Installation

4923

Standard

Configuration

4923

Option

....

Operating

Instructions

Installing

the

Tape

Cartridge

...

Activating

the

Write

Protect

Feature

Applying

Power

Operating

Modes

Read

Operations

Write

Operations

Skip

Forward

Operations

Fast

Forward

Operations

Skip

Reverse

Operations

Fast

Reverse

(

Rewind

)

Operations

REV

MAY

1977

Page

1-1

1-2

1-5

1-11

2-1

2-3

2-6

2-7

2-8

2-9

2-10

2-11

SECTION

INSTALLATION

and

OPERATION

(

cont

)

Page

Cartridge

Care

2-12

Check

out

and

Familiarization

Procedure

2-13

Operating

Considerations

2-16

SECTION

4923

Users

SUPPLEMENTAL

INFORMATION

Top

and

Bottom

Cover

Removal

and

Replacement

...

Power

Requirements

Line

Voltage

Selection

Power

Cord

and

Grounding

Requirements

Line

Voltage

Fuse

Strappable

Options

Control

Board

ROM

PROM

Selection

Minibus

Interface

Card

Tapefetch

Out

...

Auxsense

Pulsed

Routine

Maintenance

Cleaning

the

4923

Case

Cleaning

the

Tape

Head

Cartridge

Respooling

....

Self

Test

Description

and

Operation

3-1

3-3

3-5

3-6

3-7

3-8

3-9

3-10

3-11

3-13

3-16

14915

TEKTRONIX

POREK

LINE

OFF

REVERSE

WRITE

STOP

4923

Users

RUN

FORWARD

Fig

1-1

4923

Digital

Cartridge

Tape

Recorder

1908-28

REV

MAY

1977

Section

DESCRIPTION

ABOUT

THIS

MANUAL

This

manual

provides

the

information

necessary

for

the

operator

install

and

operate

the

4923

Digital

Cartridge

Tape

Recorder

unit

The

manual

divided

into

three

sections

follows

Section

provides

general

overview

the

4923

describes

its

characteristics

and

features

and

details

the

differences

between

instrument

con

figurations

Section

contains

installation

instructions

operating

instructions

and

familiarization

procedure

Section

provides

technical

information

such

line

voltage

selection

procedures

strappable

option

selection

and

description

the

self

test

feature

REV

MAY

1977

servicing

information

provided

this

manual

For

information

servicing

refer

the

optional

4923

Digital

Cartridge

Tape

Recorder

Service

Manual

(

070-1909-00

)

INTRODUCTION

The

4923

(

Fig

1-1

)

Digital

Cartridge

Tape

Recorder

unit

provides

the

capability

for

local

storage

digitally

recorded

data

recording

that

data

3M®

300A

Data

Cartridge

Information

may

recorded

from

computer

and

terminal

All

basic

tape

operations

are

controlled

from

single

row

pushbuttons

the

front

panel

the

unit

addition

Start

and

Stop

Read

Commands

(

DC1

and

DC3

respectively

)

may

issued

from

the

computer

the

terminal

the

tape

(

the

case

the

DC3

)

Operation

described

Section

;

the

front

panel

controls

are

described

later

this

section

Section

1-4923

Users

1-1

STANDARD

ACCESSORIES

The

following

standard

accessories

are

included

with

the

4923

Users

Manual

3M®

300A

Data

Cartridge

(

)

OPTIONAL

ACCESSORIES

The

following

optional

accessories

are

available

for

the

4923

Service

Manual

Additional

Data

Cartridges

(

package

)

070-1908-01

1-2

070-1909-00

119-0680-01

4923

CONFIGURATIONS

There

are

two

basic

configurations

for

the

4923

unit

;

the

standard

configuration

(

4010

series

terminal

based

)

and

Option

(

232

)

This

manual

documents

both

struments

since

most

operations

are

identical

both

versions

When

any

detail

the

unit

applies

only

one

version

(

such

installation

instructions

)

will

noted

the

text

The

standard

4923

interfaces

directly

any

4010

series

terminal

through

the

terminal

minibus

;

data

then

routed

through

the

minibus

the

modem

computer

with

without

local

display

Control

the

Local

Line

function

assumed

the

terminal's

LOCAL

LINE

switch

The

4923

Option

contains

interface

for

232

devices

with

connections

provided

for

terminal

and

for

modem

computer

the

Option

configuration

control

the

Local

Line

function

provided

button

the

front

panel

Note

however

that

the

terminal

also

has

Local

Line

control

both

the

terminal

and

the

4923

must

the

Line

position

order

Line

but

only

the

4923

need

the

LOCAL

position

for

both

the

terminal

and

the

4923

Local

therefore

recommended

that

the

terminal's

control

left

the

Line

position

leaving

Local

Line

control

the

4923

The

positions

occupied

the

4923

these

two

configurations

are

illustrated

Fig

1-2

Description

4923

Users

REV

MAY

1977

COMPUTER

101010

Diev

FERREBEE

www.ANDA

ood

000

CATAAR

000

REV

MAY

1977

Communication

Link

TERMINAL

Data

Communications

Interface

Fig

1-2a

Standard

4923

position

system

Description

4923

Users

4923

TEK

TRONER

4003

1908-2

1-3

COMPUTER

****

1-4

EEEEEEE

Diev

*****

юли

CEEEEE

MAAJAAM

JAMAAJA

AAA

)

LHHI

000

lood

1000

33880

Communication

Link

4923

Option

TEKTRONIX

00000

Fig

1-2b

4923

Option

position

system

Description

4923

Users

TERMINAL

1908-3

REV

MAY

1977

MANUAL

CONTROLS

AND

INDICATORS

There

are

six

functional

controls

the

front

panel

addition

the

POWER

switch

The

functions

initiated

the

controls

are

described

further

detail

the

Opera

tion

section

addition

there

are

five

indicators

(

LEDs

)

and

baud

rate

control

the

back

panel

the

Option

unit

only

The

control

panel

shown

Fig

1-3

;

the

functions

the

controls

and

indicators

are

follows

POWER

Switch

The

POWER

switch

located

the

front

panel

and

used

apply

power

the

tape

unit

logic

transport

control

and

interface

NOTE

the

standard

4923

terminal

power

must

applied

prior

the

4923

power

microprocessor

initialization

ensure

RUN

Control

single

momentary

push

the

RUN

button

places

the

4923

the

Read

Enable

state

allowing

respond

DC1

(

another

push

)

Start

Read

command

The

unit

REV

MAY

1977

reads

until

DC3

encountered

then

waits

for

another

Start

Read

command

the

RUN

button

held

down

the

unit

reads

continuously

long

held

(

until

the

end

the

file

)

ignoring

DC3's

also

necessary

press

the

RUN

control

while

holding

the

WRITE

control

order

initiate

Write

Operation

Pushing

the

RUN

control

when

blank

tape

area

encountered

(

the

end

the

written

data

area

)

will

cause

momentary

forward

motion

then

return

the

end

the

last

file

READ

Indicator

The

READ

indicator

(

above

the

RUN

button

)

luminates

during

Read

Operation

WRITE

Control

The

WRITE

contol

held

down

while

the

RUN

button

pressed

order

initiate

Write

Operation

WRITE

Indicator

The

WRITE

indicator

(

above

the

WRITE

button

)

luminates

during

Write

Operation

Description

4923

Users

1-5

TEKTRONIX

Ⓡ

1-6

POWER

OFF

LINE

REVERSE

WRITE

STOP

4923

RUN

Description

4923

Users

FORWARD

Fig

1-3

4923

Controls

and

Indicators

The

4923

Option

shown

;

note

that

the

LINE

button

replaced

the

BINARY

button

the

Standard

unit

1908-29

REV

MAY

1977

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