Tandy 1000 EX User manual

Table of contents

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I

i

Cat.

No.

25-1061

Tandy

1000

EX

31/2"

720K

External

Disk

Drive

Installation

Guide

RADIO

SHACK

A

Division

of

Tandy

Corporation

Fort

Worth,

Texas

76102

3/87-BCo

874-9611

.

■

\

Printed

in

U.S.A.

TANDY®

The

FCC

Wants

You

to

Know

This

equipment

generates

and

uses

radio

frequency

energy.

If

not

installed

and

used

properly,

that

is

in

strict

accordance

with

the

manufacturer's

instructions,

it

may

cause

interference

to

radio

and

television

reception.

It

has

been

type

tested

and

found

to

comply

with

the

limits

for

a

Class

B

computing

device

in

accordance

with

the

specifications

in

Subpart

J

of

Part

15

of

FCC

Rules,

which

are

designed

to

provide

reasonable

protection

against

such

interference

in

a

residential

installation.

However,

there

is

no

guarantee

that

interference

will

not

occur

in

a

particular

installation.

If

this

equipment

does

cause

interference

to

radio

or

television

reception,

which

can

be

determined

by

turning

the

equipment

off

and

on,

the

user

is

encouraged

to

try

to

correct

the

interference

by

one

or

more

of

the

following

measures:

•

Reorient

the

receiving

antenna

•

Relocate

the

computer

with

respect

to

the

receiver

•

Move

the

computer

away

from

the

receiver

•

Plug

the

computer

into

a

different

outlet

so

that

computer

and

receiver

are

on

different

branch

circuits.

Warning

This

equipment

has

been

certified

to

comply

with

the

limits

for

a

Class

B

computing

device,

pursuant

to

Subpart

J

of

Part

15

of

FCC

Rules.

Only

peripherals

(computer

input/output

devices,

terminals,

printers,

etc.)

certified

to

comply

with

the

Class

B

limits

may

be

attached

to

this

computer.

Operation

with

non-certified

peripherals

is

likely

to

result

in

interference

to

radio

and

TV

reception.

Tandy

1000

EX

SW

720K

External

Disk

Drive

Installation

Guide:

Copyright

1986,

Tandy

Corporation

All

Rights

Reserved.

Reproduction

or

use,

without

express

written

permission

from

Tandy

Corporation

and/or

its

licensor,

of

any

portion

of

this

manual

is

prohib

ited.

While

reasonable

efforts

have

been

taken

in

the

preparation

of

this

manual

to

assure

its

accuracy,

Tandy

Corporation

assumes

no

liability

resulting

fr

om

any

errrors

or

omissions

in

this

manual,

or

from

the

use

of

information

contained

herein.

10

987654321

Tandy

is

a

registered

trademark

of

Tandy

Corporation.

MS-DOS

is

a

registered

trademark

of

Microsoft Corporation.

TERMS

AND

CONDITIONS

OF

SALE

AND

LICENSE

OF

TANDY

COMPUTER

EQUIPMENT

AND

SOFTWARE

PURCHASED

FROM

RADIO

SHACK

COMPANY-OWNED

COMPUTER

CENTERS.

RETAIL

STORES

AND

RADIO

SHACK

FRANCHISEES

OR

DEALERS

AT

THEIR

AUTHORIZED

LOCATIONS

LIMITED

WARRANTY

I.

CUSTOMER

OBLIGATIONS

A.

CUSTOMER

assumes

full

responsibility

that

this

computer

hardware

purchased

(the

"Equipment"),

and

any

copies

of

software

included

with

the

Equipment

or

licensed

separately

(the

"Software")

meets

the

specifications,

capacity,

capabilities,

versatility,

and

other

requirements

of

CUSTOMER.

B.

CUSTOMER

assumes

full

responsibility

for

the

condition

and

effectiveness

of

the

operating

environment

in

which

the

Equipment

and

Software

are

to

function,

and

for

its

installation.

II.

LIMITEO

WARRANTIES

ANO

CONDITIONS

OF

SALE

A.

For

a

period

of

nine^

(90)

calendar

days

from

the

date

of

the

Radio

Shack

sales

document

received

upon

purchase

of

the

Equipment.

RADIO

SHACK

warrants

to

the

on'ginal

CUSTOMER

that

the

Equipment

and

the

medium

upon

which

the

Software

is

stored

is

free

from

manufacturing

defects.

This

warranty

Is

only

applicable

to

purchases

of

Tandy

Equipment

by

the

original

customer

from

Radio

Shack

company-owned

computer

centers,

retail

stores,

and

Radio

Shack

franchisees

and

dealers

at

their

authorized

locations.

The

warranty

is

void

if

the

Equipment

or

Software

has

been

subjected

to

improper

or

abnormal

use.

If

a

manufacturing

defect

is

discovered

during

the

stated

warranty

period,

the

defective

Equipment

must

be

returned

to

a

Radio

Shack

Computer

Center,

a

Radio

Shack

retail

store,

a

participating

Radio

Shack

franchisee

or

a

participating

Radio

Shack

dealer

for

repair,

along

with

a

copy

of

the

sales

document

or

lease

agreement.

The

original

CUSTOMER'S

sole

and

exclusive

remedy

in

the

event

of

a

defect

is

limited

to

the

correction

of

the

defect

by

repair,

replacement,

or

refund

of

the

purchase

price,

at

RADIO

SHACK'S

election

and

sole

expense.

RADIO

SHACK

has

no

obligation

to

replace

or

repair

expendable

items.

B.

RADIO

SHACK

makes

no

warranty

as

to

the

design,

capability,

capacity,

or

suitability

for

use

of

the

Software,

except

as

provided

in

this

paragraph.

Software

is

licensed

on

an

"AS

IS"

basis,

without

warranty.

The

original

CUSTOMER'S

exclusive

remedy,

in

the

event

of

a

Software

manufacturing

defect,

is

its

repair

or

replacement

within

thirty

(30)

calendar

days

of

the

date

of

the

Radio

Shack

sales

document

received

upon

license

of

the

Software.

The

defective

Software

shall

be

returned

to

a

Radio

Shack

Computer

Center,

a

Radio

Shack

retail

store,

a

participating

Radio

Shack

franchisee

or

Radio

Shack

dealer

along

with

the

sales

document.

C.

Except

as

provided

herein

no

employee,

agent,

franchisee,

dealer

or

other

person

is

authorized

to

give

any

warranties

of

ariy

nature

on

behalf

of

RADIO

SHACK.

D.

EXCEPT

AS

PROVIDEO

HEREIN,

RADIO

SHACK

MAKES

NO

EXPRESS

WARRANTIES,

AND

ANY

IMPLIED

WARRANTY

OF

MERCHANTABILITY

OR

FITNESS

FOR

A

PARTICULAR

PURPOSE

IS

LIMITEO

IN

ITS

DURATION

TO

THE

DURATION

OF

THE

WRIHEN

LIMITED

WARRANTIES

SET

FORTH

HEREIN.

E.

Some

states

do

not

allow

limitations

on

how

long

an

implied

warranty

lasts,

so

the

above

limitation(s)

may

not

apply

to

CUSTOMER.

III.

LIMITATION

OF

LIABILITY

A.

EXCEPT

AS

PROVIDED

HEREIN,

RADIO

SHACK

SHALL

HAVE

NO

LIABILITY

OR

RESPONSIBILITY

TO

CUSTOMER

OR

ANY

OTHER

PERSON

OR

ENTITY

WITH

RESPECT

TO

ANY

LIABILITY,

LOSS

OR

DAMAGE

CAUSED

OR

ALLEGED

TO

BE

CAUSED

DIRECTLY

OR

INDIRECTLY

BY

"EQUIPMENT"

OR

"SOFTWARE"

SOLD,

LEASED,

LICENSED

OR

FURNISHED

BY

RADIO

SHACK,

INCLUDING,

BUT

NOT

LIMITEO

TO,

ANY

INTERRUPTION

OF

SERVICE,

LOSS

OF

BUSINESS

OR

ANTICIPATORY

PROFITS

OR

CONSEQUENTIAL

DAMAGES

RESULTING

FROM

THE

USE

OR

OPERATION

OF

THE

"EQUIPMENT"

OR

"SOFTWARE."

IN

NO

EVENT

SHALL

RADIO

SHACK

BE

LIABLE

FOR

LOSS

OF

PROFITS,

OR

ANY

INDIRECT,

SPECIAL.

OR

CONSEQUENTIAL

DAMAGES

ARISING

OUT

OF

ANY

BREACH

OF

THIS

WARRANTY

OR

IN

ANY

MANNER

ARISING

OUT

OF

OR

CONNECTED

WITH

THE

SALE,

LEASE,

LICENSE,

USE

OR

ANTICIPATED

USE

OF

THE

"EQUIPMENT"

OR

"SOFTWARE."

NOTWITHSTANDING

THE

ABOVE

LIMITATIONS

AND

WARRANTIES,

RADIO

SHACK'S

LIABILITY

HEREUNOER

FOR

DAMAGES

INCURRED

BY

CUSTOMER

OR

OTHERS

SHALL

NOT

EXCEED

THE

AMOUNT

PAID

BY

CUSTOMER

FOR

THE

PARTICULAR

"EQUIPMENT"

OR

"SOFTWARE"

INVOLVED.

B.

RADIO

SHACK

shall

not

be

liable

for

any

damages

caused

by

delay

in

delivering

or

furnishing

Equipment

and/or

Software.

C.

No

action

arising

out

of

any

claimed

breach

of

this

Warranty

or

transactions

under

this

Warranty

may

be

brought

more

than

two

(2)

years

after

the

cause

of

action

has

accrued

or

more

than

four

(4)

years

after

the

date

of

the

Radio

Shack

sales

document

for

the

Equipment

or

Software,

whichever

first

occurs.

0.

Some

states

do

not

allow

the

limitation

or

exclusion

of

incidental

or

consequential

damages,

so

the

above

limitation(s)

or

exclusion(s)

may

not

apply

to

CUSTOMER.

IV.

SOFTWARE

LICENSE

RADIO

SHACK

grants

to

CUSTOMER

a

non-exclusive,

paid-up

license

to

use

the

TANDY

Software

on

one

computer.

subject

to

the

following

provisions:

A.

Except

as

otherwise

provided

in

this

Software

License,

applicable

copyright

laws

shall

apply

to

the

Software.

B.

Title

to

the

medium

on

which

the

Software

is

recorded

(cassette

and/or

diskette)

or

stored

(ROM)

is

transferred

to

CUSTOMER,

but

not

title

to

the

Software.

C.

CUSTOMER

may

use

Software

on

a

multiuser

or

network

system

only

if

either,

the

Software

is

expressly

labeled

to

be

for

use

on

a

multiuser

or

network

system,

or

one

copy

of

this

software

is

purchased

for

each

node

or

terminal

on

which

Software

is

to

be

used

simultaneously.

D.

CUSTOMER

shall

not use.

make,

manufacture,

or

reproduce

copies

of

Software

except

for

use

on

one

computer

and

as

is

specifically

provided

in

this

Software

License.

Customer

is

expressly

prohibited

from

disassembling

the

Software.

E.

CUSTOMER

is

permitted

to

make

additional

copies

of

the

Software

only

for

backup

or

archival

purposes

or

if

additional

copies

are

required

in

the

operation

of

one

computer

with

the

Software,

but

only

to

the

extent

the

Software

allows

a

backup

copy

to

be

made.

However,

for

TRSDOS

Software.

CUSTOMER

is

permitted

to

make

a

limited

number

of

additional

copies

for

CUSTOMER'S

own

use.

F.

CUSTOMER

may

resell

or

distribute

unmodified

copies

of

the

Software

provided

CUSTOMER

has

purchased

one

copy

of

the

Software

for

each

one

sold

or

distributed.

The

provisions

of

this

Software

License

shall

also

be

applicable

to

third

parties

receiving

copjes

of

the

Software

from

CUSTOMER.

G.

All

copyright

notices

shall

be

retained

oh

all

copies

of

the

Software.

V.

APPLICABILITY

OF

WARRANTY

A.

The

terms

and

conditions

of

this

Warranty

are

applicable

as

between

RADIO

SHACK

and

CUSTOMER

to

either

a

sale

of

the

Equipment

and/or

Software

License

to

CUSTOMER

or

to

a

transaction

whereby

Radio

Shack

sells

or

conveys

such

Equipment

to

a

third

party

for

lease

to

CUSTOMER.

B.

The

limitations

of

liability

and

Warranty

provisions

herein

shall

inure

to

the

benefit

of

RADIO

SHACK,

the

author,

owner

and

or

licensor

of

the

Software

and

any

manufacturer

of

the

Equipment

sold

by

Radio

Shack.

VI.

STATE

LAW

RIGHTS

The

warranties

granted

herein

give

th^

original

CUSTOMER

specific

legal

rights,

and

the

original

CUSTOMER

may

have

other

rights

which

vary

from

state^'to

state.

0^00

Installation

SERVICE

POLICY

Radio

Shack's

nationwide

network

of

service

facilities

provides

quick,

convenient,

and

reliable

repair

services

for

all

of

its

computer

products,

in

most

instances.

Warranty

service

will

be

performed

in

accordance

with

Radio

Shack's

Limited

Warranty.

Non-warranty

service

will

be

provided

at

reasonable

parts

and

labor

costs.

Adding

Tandy's

720K

External

Disk

Drive

to

your

computer

as

a

secondary

disk

drive

significantly

increases

the

amount

of

disk

storage.

This

3^2"

floppy

disk

drive

supports

all

standard

MS-

DOS®

version

2.11.24

and

ROM

BIOS

commands

and

uses

the

3.5-inch,

80-track

microfloppy

diskettes.

•

720K

bytes

formatted

storage,

IM

byte

unformatted

•

Uses

3V2",

double-sided,

double-density

diskettes

•

Connects

to

computer

via

a

cable

•

Front

loading,

horizontally-mounted

The

external

disk

drive

connects

directly

to

your

computer

by

the

cable

from

the

drive's

rear

panel.

Computer

Disk

Drive

Figure

1.

Disk

Drive-to-Computer

Connection

Installation

Connecting

the

Disk

Drive

Caution

should

be

exercised

when

using

the

disk

drive

in

low

humidity

environments

to

prevent

damage

to

electronic

parts

by

static

electricity

being

discharged

through

them.

Before

proceed

ing

further,

discharge

any

static

electricity

build-up

by

touching

a

grounded

metal

object.

1.

Turn

off

power

to

all

equipment.

Disconnect

the

power

cord

from

the

electrical

outlet.

If

the

computer

is

on,

you

could

damage

the

central

processing

unit,

as

well

as

your

external

disk

drive.

2.

Connect

the

external

disk

drive's

cable

to

the

EXTERNAL

DRIVE

connector

on

the

rear

panel

of

the

computer

and

to

the

disk

drive.

The

cable

is

keyed

and

can

only

be

connected

as

shown.

Cable

External

Drive

Connector

Figure

2.

Comiecting

the

Disk

Drive

Your

new

external

disk

drive

is

now

ready

for

operation

with

your

computer.

Specifications

DC,

+5V

Voltage

tolerance

Allowable

ripple

voltage

Operating

current

consumption

Waiting

current

consumption

Power

consumption

Operating

temperature

Humidity

Operating

environment

Storage

Dimensions

Weight

±5%

Less

than

lOOmVp-p

(including

noise)

170mA,

t5rpical

average

Less

than

200mA,

max.

avg.

Peak:

Less

than

240mA

4mA,

typical

Less

than

6.8mA,

maximum

2.11W,

t3rpical

operating

22mW,

typical

waiting

55°F

to

85°F

(12.8°C

to

29.4°C)

90%

relative

humidity

(non-

condensing)

90%

(non-condensing)

2.55"H

X

6.54"W

x

11.2'D

(64.8mm)

x

(166mm)

x

(285mm)

3.7

lbs.

(1.68

kg.)

Specifications

Performance

Data

capacity

Access

time

Average

access

time

Track-to-track

Motor

start

time

Disk

speed

Average

latency

IM

byte,

unformatted

720K

bytes,

formatted

94

msec.(including

15

msec,

settling

time)

3

msec.

Less

than

400

msec.

300

rpm

100

msec.

Physical/environmental

Interface

cable

30-pin,

card

edge

(keyed)

Power

requirement

DC,

+12V

Voltage

tolerance

Read/write

operation:

Less

than

±10%

Others:

Less

than

±

10%

Allowable

rippled

voltage

Operating

current

consumption

Waiting

current

con

sumption

(spindle

motor

off)

Less

than

200mVp-p

(including

noise)

105mA,

typical

average

(using

a

disk

of

typical

running

torque)

Less

than

180mA,

max.

avg.

(using

a

disk

of

maximum

run

ning

torque)

Peak:

Less

than

230mA

(400

msec.,

maximum

at

spindle

motor

start)

0.2mA,

typical

0.5mA,

maximum

Installation

Inserting

the

Diskette

Storing

your

files

on

diskettes

gives

you

unlimited

data

file

stor

age

space.

The

disk

drive

uses

a

3y2",

soft-sectored,

double-sided,

double-density,

80-track

microfloppy

diskette

(Radio

Shack

Cat.

No.

26-417

or

26-418).

1.

Follow

the

instructions

in

your

computer

operation

manual

for

powering

up

the

system.

Cover

the

write-protect

notch

(square

hole

in

the

upper

right

corner)

on

the

diskette

when

you

want

to

save

or

change

information

on

the

diskette.

Otherwise,

the

disk

drive

cannot

write

(change

information)

on

the

diskette.

Move

the

small

tab

(normally

red

or

black)

down

to

write-

enable

the

diskette

or

move

it

up

to

write-protect.

2.

Insert

the

diskette

with

the

label

side

up

into

the

disk

drive

insertion

window.

LED

Indicator

Insertion

Window

Figure

3.

Inserting

the

Diskette

The

LED

indicator

will

light

while

the

drive

is

in

use.

Push

in

the

eject

button

below

the

insertion

window

to

remove

the

diskette.

Before

turning

off

power

to

the

system,

be

sure

to

remove

the

diskette.

Leaving

it

in

the

drive

may

result

in

loss

of

the

con

tents

of

the

diskette.

For

instructions

on

using

data

diskettes,

making

backups

and

formatting

a

diskette,

refer

to

the

first

part

of

A

Practical

Guide

to

the

Tandy

1000

EX.

Installation

Accessing

Information

Information

can

be

accessed

from

your

secondary

disk

drive

and

copied

to

the

SVi"

internal

drive

of

the

computer.

To

access

the

secondary

drive,

give

the

drive

reference

in

the

command

or

pathname.

For

example,

you

might

type:

dir

b:

or

b:\program

A

special

function

key

is

used

to

boot

a

diskette

in

the

second

ary

drive

which

is

designated

as

Drive

B.

Press

[f^

during

bootup

after

you

hear

the

beep

to

swap

drives

and

change

the

secondary

drive's

reference

to

Drive

A.

For

details

on

using

software

with

your

disk

drive,

refer

to

the

fi

rst

part

of

A

Practical

Guide

to

the

Tandy

1000

EX.

Care

and

Maintenance

Your

disk

drive

is

designed

to

he

free

from

periodic

maintenance

when

it

is

operated

within

normal

operation

duty.

•

Five-year

design

component

life

•

MTBF

(mean-time-between-failure)

equals

10,000

hours

or

more

with

power

on

for

typical

usage

It

is

recommended

that

you

clean

the

magnetic

head

with

a

cleaning

disk

to

maintain

reliability

of

the

data.

If

some

of

the

parts

in

the

disk

drive

are

operated

at

a

specially

heavy-duty

condition,

or

if

it

is

operated

over

5

years,

it

is

rec

ommended

that

you

have

the

unit

serviced

by

a

qualified

Radio

Shack

technician.

Do

not

apply

excessive

impact

or

drop

the

disk

drive

on

the

desk.

When

Something

Goes

Wrong

—

Soft

(read,

write,

seek

and

interchange)

errors

are

often

mis

taken

for

errors

caused

by

problems

or

misadjustments

of

the

disk

drive.

Be

sure

to

check

the

following

before

returning

the

disk

drive

to

a

Radio

Shack

service

facility

for

repair:

1.

Proper

operational

or

programming

procedure

is

followed.

2.

Diskette

is

not

damaged.

3.

Disk

drive

or

diskette

is

not

exposed

to

dust

in

the

air,

random

electric

interference

or

other

external

cause.

If

you

do

not

fi

nd

a

damaged

part

on

visual

inspection,

check

whether

the

error

is

repeated

on

the

current

diskette

or

whether

the

same

error

results

with

another

diskette.