Jameco electronics Je1043 User manual

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ameco

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JAMECO

BLMT

Mail Order Electronics.Worldwide

ameco

1.

,

JE1043

Floppy

Disk

Drive

Controller

Card

User's

Manual

121.DOC Revision 5.153 January 23, 1989

Reproduction

or

use,

without

express

written

eermission

from

Jameco

Electronics

of

any

portion

of

this

manual

is

prohIbited.

While

reasonable

efforts

have

been

taken

in

the

preparation

of

this

manual

to

assure

its

accuracy,

Jameco

Electronics

assumes

no

liability

resulting

from

any

errors

or

omissions

in

this

manual,

or

from

the

use

of

the

r

information

contained

herein.

Apple

and

LaserWriter

are

registered

trademarks

of

Apple

Computer

Corporation.

IBM is a

registered

trademark

of

International

Busines

s

Machines

Corpora

tion.

Microsoft, MS-DOS, GWBASIC, QuickBASIC,

Windows

and

XENIX

are

registered

trademarks

of

Microsoft

Corporation.

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and

Radio

Shack

are

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trademarks

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Tandy

Corporation.

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and

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BASIC

arc

trademarks

of

Borland

International.

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Freelance,

Manuscript,

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and

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Lotus

Development

Corporation.

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Corporation.

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Corporation.

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Intel

CorporatIon.

i

Table

of

Contents

Introduction

....................................................................................... 1

Descri

ption

...................................................................................... 1

Features

..............................................................................

eII

....

........

1

Checkli~t

.......................................................................................... 1

Glossa~

........................................................................................... 1

PrecautIons

..................................................................................... 2

Configuration

.................................................................................... 3

I:>iCl~Cl11r\

...........................................................................................

il

JPl

BIOS

Address

.......................................................................... S

"JP2, JP3 110

Address

..................................................................... S

JPil BIOS

EnClble

............................................................................. 5

JPS Del

ay

......................................................................................... 6

J

"

P6,J7,~,~

I:>ri"e

~ype

...................................................................... 6

Ins

tallation ...................•..................................................................... 8

Case

Removal

.................................................................................

~

IB

M

PC

..

...

....

...

..

...

..

...

..

...

..

...

....

...

..

...

..

...

....

...

..

...

..

.....

..

...

..

...

..

....

~

IBM

PC/XT

JEl000

JElOOl JEl002 ..............................................

~

~()2~6

~()~~6

.....................................................................................

~

Other

Computers

...........................................................................

~

Card

InsertIon

................................................................................

~

Floppy

Disk

Drive

Settings

..........................................................

11

CClse

Assembly

...............................................................................

1~

Operation

......................................................

~

.................................... 14

Power

Up

........................................................................................ lil

286

I

~86

SE~UP

.............................................................................. 1

il

~OS

...................................

~

.............................................................. 16

Capacities

........................................................................................ 16

Signal

Description

.......................................................................... 18

Obtaining

Assistance ....................................................................... 19

Glossary ...............................................................................................

21

ii

Table of Figures Table of Tables

JE

1043 Revi

sian

E

Diagram

..............................'................................. 4

JEI043 Revision D

Diagram

.............................................................. 4

Floppy

Disk

Drive

Cable

Diagram

.................................................. 12

Drive

Cable

Connection

Diagram

.................................................... 12

JPl

BIOS

Address

Jumper

Settings .................................................. S

JP2/JP3

1/

a

Address

Jumper

Settings

............................................ S

JP4 BIOS

Enable

Jumper

settings

..................................................... 6

JPS

Delay

Jumper

Settings ................................................................ 6

JP6/7/8/9

Drive

Type

Jumper

Settings ......................................... 7

IBM

PC

DIP

S

wi

ten

Settings ............................................................. 8

IBM

PC/XT

DIP

Switch

Settings

..................................................... 9

iii lV

Description

Features

Checklist

Glossary

Introduction

Congratulations

on

the purchase of

your

Jameco

Electronics equipment. We -realize that

you

will

be

anxioustogetto

work

on

your

new

equipment

but

we

ask

that

you

.rfease

!ead

the.manual. Keep

an

eye

open

for

any

addItIonal InformatIon

that

may

nave

come in

an

addendum.

Thi~

is only

one

of

many

innovative

new

products

avaIlable from Jameco Electronics, pioneers

in

the

mail-order electronics

industry

since 1974. Look for a

growing

line of quality

products

in

your

latest Jameco

Electronics

annual

catalog

and

seasonal flyers.

TheJEI043 is a floppy disk

drive

controllercarddesigned

to control

two

floppy disk drives.

Any

combination of

two

360K, 720K, 1.2M

or

1.44M floppy diskdrives

may

be

connected. The JEI043 has been tested

at

expansion

bus

speeds

of

up

to 12MHz. The

bus

speed is often

independent

of processor speed; consult

your

computer

owner's

manual

for information

on

bus

speed.

• Operational

at

expansion

bus

speeds

up

to 12MHz

• Fully compatible

with

AMI

and

most

other

BIOS

• Compatible with 8088/8086,80286

and

80386 systems

-

o}EI043 card

oCable for connecting two floppy drives

Throughout

this manual, a variety of

common

computer

terms

~nd

abbreviations will

be

used. For

your

convenIence, a glossary of sfandard

computer

terms

has

been

included

at

the

end

of this manual.

1

..

r

Precautions yvhen working with any circuit

board

or

IC, some

precautionsneedto beobserved for thesafestinstallation.

Many

parts

arestaticsensitive

and

max

be

easily

damaged

by

static electricity

that

may

have

buIlt

up

in

your

body.

Thebest

way

toassure thatno

damage

comesto

your

new

equipment

IS

to observe a few precautions: .

1.

Whenever

you

move

your

body,

you

can easily build

up

enough

static electricity to

damage

a circuit board.

When

handling

a

board

or

ICs,

ground

yourselfoften. The

best

way

to

do

this is with a

grounding

wrist

strap

that is

properlyconnected to a ground. These

may

be

purchased

through

Jameco Electronics;

order

part

WS.

Another

wax

to

ground

yourself

would

be to

plug

the

computer

s

power

supply

into a

grounded

outlet (but leave it

turned

off), then touch the frame of the

power

supply

often to

dissipate

any

static charge

that

you

may

have built up.

2.

Make

sure

that the

power

supply

is turned OFF before

installing

or

removing anything. .

3.

Hold

all circuit

boards

and

Ies

by

the edges.

2

Configuration

This section will

cover

the

necessary

hardware

configurations

of

the

JEI043

and

your

computer.

Whenever

possible,

diagrams

and

tables

have

been

provided

to clarify

proper

configuration. Default

or

recommended

settIngs will

appear

in

italic

type.

Since a

computer

sy:stem

must

never

have

two

floppy

controller

cards

installed

at

the

same

time,

you

must

make

sure

that

you

remove

(or disable)

any

existing floppy

controller card.

If

you

have

only

one

floppy

disk

drive

installed

in

your

computer,

'DOS will

consider

it to

be

both

logical

drive

A:

and

lo~cal

drive

B:.

if

you

have

t':Vo

floppy

disk

~rives

installed

in

your

computer,

DOS wIll consIder

the

fIrst to

be

logical

drive

A:

and

the

second to

be

logical

drive

B:.

Refer to

the

glossary

for a

description

of

a logical

drive

and

a physical drive. .

All references to locations

on

the

JEI043 will

be

made

as

if

you

were

holding

it

in

front

of

you,

with

the

expansion

card

edge

to

the

bottom,

and

the

mounting

bracket to

the

right. All

pertinent

jumpers

and

connectors are labeled

on

the

board.

Please refer to

the

following

diagram.

3

Diagram

JP5

c:::J

JP1

o

JP2I3

rn

]EI043

revision

E

JP6I7/8/9

rrrn

o

JP4

ROM

NOTE:

Some

versions

of

the

lEI043,

do

not

have

JP6

through

JP9labeled

on

the

board.

Instead

tht!

are

labeled

"DIP

SWI".

If

you

have

received

this

version, r

er

to

the

following

figure.

tFzere

are

no

functional

differences

etween

the

two

versions.

JP5

c:::J

JP1

o

JP2I3

[J]

JEI043

revision

D

4

DIP

SW1

[DID]

ROM

o

JP4

JP1

BIOS

Address

Jumper

block

JP1

allows

you

to select

the

address

of

the

ROM BIOS

that

is

on

the

JE1043. This

jumper

block is

located

at

the

lower

left

corner

of

the

board.

On

most

computers,

the

factory

default

setting will

not

cause

conflicts.

However,

as

more

and

more

expansion

options

are

developed,

the

possibili~

for

two

devices to

be

addressed

at

the

same

location increases. To

accommodate

this,

the

JE1043 can

be

addressed

at

either

of

two

memory

addresses,

in

case conflicts arise. If

you

experiencea conflict

with

another

expansion

board,

such

as

a

hard

disk

controller card,

try

addressing

the JE1043

at

the

alternate

location. Set

the

address

according to

the

following table;

defaults

are

in

italics.

JP1

'

Address

Open

CCOOh

to

CDFFh

Closed

CAOOh

to

CBFFh

JP2,

JP3

Jumper

blocks JP2

and

JP3 allow

you

to select

the

1/0

Address

hardware

I/O

port

address.

Only

one

address

may

be

selected

at

a time. .

JP4

BIOS

Enable

JP2

JP3

1/0

Address

Closed

Open

3FOh

to

3F7h

Open

Closed

370h

to

377h

NOTE:

Never

jumper

both

IP2

and

IP3

at

the

same

time.

This

jumper

block

allows

you

toenable

or

disabletheBIOS

on

the

JE1043. The BIOS

provides

the

routines necessary

to

run

the

four floppy

disk

drive

types

supported

by

the

JEI043,

without

relying

on

whether

or

not

the

motherboard

is capable

of

supporting

them.

If

your

motherboard

BIOS ROMisableto

provide

support

for all floppy

disk

drive

types

that

you

are

using,

you

do

not

need

to

enable

the

JEI043 BIOS ROM. It is

only

when

5

JP5

Delay

JP6,7,8,9

Drive Type

yrour

motherboard

BIOS ROMs

do

not

support

all floppy

disk

drive

types

that

you

should

enable

the

JE1043 BIOS

ROM. If

you

do

not

know,

we

recommend

that

you

enable

the

JEI043 BIOS.

JP4

JE1043

BIOS

.

Closed

Enable

Open

Disable

This

.is

the

"Delay Select"

jump~r

block.

Put

the

jumper

on

pIns 2

and

3

If

your

expansion

bus

speed

is

runnIng

-

from 10MHz to 12MHz.

Put

the

jumper

on

pins

1

and

2

if

your

bus

speed

is

below

lOMHz.

JP5

Delay

Bus

Speeds

Pins

1

and

2

Closed

Disable

Lower

than

10MHz

Pins

2

and

3

Closed

Enable

10MHz

to

12MHz

Jumper

blocksJP6, JP7, JP8

and

JP9 allow

you

to select

the

type

of floppy

disk

drives

that

will

be

connected to

the

JE1043. Tnese

are

'located

at

the

right side

of

the

board.

Refer to the

of

the JE1043. Configure

the

JE1043 for

tne

type

of

floppy

disk

drives

installed

based

on

the

following diagram:

6

oPEN

~L.ostb

C~OS€J)

oPEN

oP£tJ

Cw5Cl>

C.

c-o

S

E.b

()

peN

JP6

Closed

-6

les8

Q.

ap

eFl

Open

-

JP7

Closed

e

~el

'

-e

lo

~

ee

Open

-

JP8

JP9

--

Closed

--S

1

968g

9~

e

Ft

'

·

e

~ e

""

Sl

as

es

Open

7

Drive

A

360K

720K

1.2M

1.44M

-

Drive

B

-

360K

720K

1.2M

1.44M

Case

Removal

IBM PC

_IBM PC/XT

JE1000

JE1001

JE1002 '

Installatio-n

This section will assist

you

in

mounting

your

JEI043

and

preparing

it for operation. Information is provided for

IBM

and

Jameco computers. If

you

have another type of

computer,

read

thjs section

and

apply

the information

contained here to

your

application.

Open

up

'

your

computer

so

you

can access the

motherbOard. Pleasereferto thedocumentationthatcame

with

your

computer

for information

on

how

_to remove

the cover to access the motherboard.

On

some computers there is a set of DIP switches

or

jumpers

that

confi~re

the motherboard for the

number

and

type

of floppy disk drives installed

in

the system.

The

IBM

PC has two switch blocks

on

the motherboard

labeled

SWl

(near the center)

and

SW2 (near the

power

supply). Each switch block has 8 DIP switches. Set the

switches 1, 7

and

8 ofSWI as follows:

Number

of

Drives

SW1·S1

SW1·S7 SW1·S8

Installed

1

Off

On

2

Off Off

On

The

IBM

PC/XT

and

compatibles, have only

one

switch

block

on

the motherboard that

has

eight DIP switches. It

islocated

near

the

power

supply

connectors. Setswitches

7

and

8 of

SWl

according to the following table:

8

80286

80386

Other

Computers

Card

Insertion

Number

of

Drives

SW1·S7

SW1·S8

Installed

1

On

2

Off

On

The

IBM

PCIAT (80286)

and

most AT comEatible

computers, including the Jameco Electronics JEl003,

JEloo7, JE3005, JE3010, JE3020, JE3025

and

JE3030

motherboards,

do

not

require

any

DIP switch

or

jumper

changes

that

concern floppy disk drives configuration.

These

computers

have

a SETUP

program

that tells the

CMOS

parameters

to recognize the types

of

floppy disk

drives connected. The CMOS parameters are usually

battery

backed-up

so

that

the parameters are kept while

the

computer

power

is off.

There

may

be some AT compatible computers that

have

a DIP switch

bank

that

needs to

be

configured

when

installing

the

JEI043. Please consult the

owner's

manual

that

came with

your

computer

or

contact

your

dealer for

information

regarding

settingthemotherboardfor

proper

floppy

disk

drIve/types.

At this

point

your

JEI043 should

now

haveall jumpersset

pro~rly

and

your

motherboard should have its switches

set, if any.

If

you

have

an

existing floppy controller card in

your

system,

you

must

remove (or disable) it. The

computer

can only accept

one

floppy controller card. Remove the

existing cable

that

had

connected the original controller

card to

your

floppy disk drives, if applicable.

If the above step

had

not

left

an

empty

hole for the

mounting

bracket

on

the JEI043,

you

should select a slot

9

that

is convenient for routing cables to the floppy disk

drives

and

remove its ernpty

bracket.

Save the screw to

use

later to secure

the

JEI043

in

place.

Again

make

certain

that

the

computer's

power

is OFF.

SlIde theJEI043 into the selected slot. DONOT ROCK

IT

FROM LEFT TO RIGHT OR DAMAGE TO YOUR SLOT

MAY RESULT. As

you

slide it in,

make

certain

that

the

gold-plated connector fingers are correctly started in the

motherboard

connector, tfien slowly

and

firmly press the

card

into place. Check to see

that

the controller card is

fully

and

properly

seated in the connector.

Some

motherboards

may

be

mounted

too

low

in

thecase,

causing

the

metal bracket

on

the JEI043 to prevent

you

from

plugging

it into the slot completely. This

may

be

corrected

in

one

of

the

following ways: .

1.

Ifthe

motherboard

is

mounted

withall metal standoffs,

it

may

be possible to

put

insulated washers

under

each

one

to raise the motherboard slightly.

2.

Some cases allow for

up

and

down

adjustments of the

rear

Fanel; simply loosen the its screws

and

adjust the

pane

to a

lower

position. Tighten the screws only after

all expansion cards

have

been

installed

and

attached to

the

rear

panel.

3.

The last possible

method

would

be

to

bend

or

remove

the

metal bracket of the JEI043. .

SecuretheJEI043

in

place

with

thescrewpreviously

used

to

hold

the

empty

bracket

or

old controner card.

When

screwed in place, it

should

remain fully seated

in

the

motherboard

connector.

10

Floppy Disk

Drive

Settings

Find

the

"drive select"

jumper

block

or

shunt

located

on

the

floppy

disk

drive(s)

you

plan

to use.

Depending

on

the

manufacturer

of

your

floPRY

disk

drive, the

drive

select

jumper

blocks

may

be

labeled

many

different

ways

(e.g. 0

through

3, 1

through

4, A

through

D,

DSO

through

DS3,

D1

through

D4,

and

so on). Make

sure

each floppy

disk

drive

connected to the JE1043 is

set

to the.second

"driveselect". Forexample,if

you

ha

ve

an

FD55GFV

drive

which

has

four

"drive select"

jumper

blocks labeled

DSO

through

DS3,

you

would

want

to

put

a

jumper

acrossDS1.

Install

the

floppy

disk

drive(s)

you

plan

to

use

into

the

computer

if

tney

are

not

installed already.

Be

aware

that

most

floppy

disk

drives

will

not

work

if

they

are

mounted

incorrectly. Forexample,

the

TEAC

drives

will

not

work

if

they

are

mounted

upside-down.

If

you

are

not

sure

how

this

IS

accomrlished,

refer to

your

floppy

disk

drive

manufacturer

s

manual

for

recommended

mounting

conditions. If this information is

not

included

in

your

manuals,

consult

your

dealer.

Look

at

the

cable

that

came

with

the

JE1043

and

refer to

the

figure below. You will notice a

red

or

blue

stripe

on

one

side

of

thecable. Thisstripesignifiesline

one

(1). You

will also notice

that

between

two

of

the connectors,

the

cable

has

been

split

and

"fliEped." Theconnector

opposite

this "flip" connects to

the

JE1043. If

the

cable

had

come

connected to

the

JE1043 already, takea

moment

to

ensure

that

it

is connected properly. If

it

is

not

connected to the

JE1043, connect it

now.

11

To Controller

To

2nd Drive To

1st

Drive

'r

Lines 10 to 16

'r

(7

wires) flipped

34-Pin

Floppy Disk Drive

Cable

'r

X

'--

L

RED

or

BLUE

stripe

~

(Pin

1)

Attach

the

end

of

the

cable to the first floppy

disk

drive

(drive A:). Make

sure

the

it

attaches to

the

connector

on

the

end

of

the cable

and

that

the

red

or

blue

stripe

on

the

cable faces

the

correct direction.

NOTE:

The

red

or

blue

stripe

on

one

edge

of

the

cable

refers

to

line

one

(1).

The

notch

in

the

card

edge

of

the

floppy

disk

drive

is

nearest

to

line

one.

Make

sure

that

line

1

on

both

cable

connectors

connects

to

line

1

on

the

rear

of

the

floppy

disk

drive(s).

Red or Blue

Stripe

L

Notch

f1J

Cable

Floppy Disk Drive

WARNING! Connectingthiscable

backwards

may

cause

irreversible damage!

12

Case

Assembly

If

you

plan

to

use

a second

flopp~

disk drive (drive

B:),

attachIt to theconnector

that

is In the

middle

ofthe cable.

Follow

the

sameprecautions

as

you

did

forconnectingthe

first floppy disk drive. _

Carefullyexamine

your

work. Makecertain againthatall

floppy disk drives are securely installed,

and

that the

cables are

routed

neatly where they will not be

abraded

by

the case cover. Gently tilt the entire

computer

case

from side to side to ensure that there are no loose screws

or

other

bits

of

hardware

in the case. Inspect the top side

of the motherboard for

other

loose

haraware

you

may

have

accidentally

dropped.

When

you

are completely

satisfie~

with

the

instanatio~,

close the

computer

lid

or

replace Its cover. Reconnect all peripherals.

Place

your

monitor

and

keyboard in a comfortable

position in front

of

the you.

Power Up

286/386

SETUP

Operation

For the safest operation,

you

should always

turn

on

your

computer's

penpheral

devices(printer,

modem,

monitor,

etc.) first

and

then

turn

the

computer

itself on. This is to

protect

the

delicate

computer

circuitryfrom

any

transients

caused

by

switchingthe

other

deviceson. If

your

monitor

is

plugged

into the rear of the

computer

and

comes

on

when

you

turn

the

computer

on, that is okay.

Turn

on

the

computer's

monitor

and

any

other

peripherals.

Turn

on

the

computer

itself.

Adjustfront

and

rearcontrolsofthemonitorasnecessary.

286 (AT)

and

386 computers require that

you

run

a

setup

program

to set

up

the CMOS parameters. These

parameters tell the

BIOS

the time

and

date, as well as

hardware

options

that

are installed. The CMOS

parameters

must

be told

what

kind offloppy disk drives

are installed.

IBM

PC/AT The original AT

and

some other compatible computers

have

the SETUP

program

on

disk. This

program

may

be

found

on

the diagnostics diskette that came

with

your

guide

to operations manual. This involves booting the

computer

beforetheSETUP procedurecan

be

started. The

origtnal

IBM

AT CMOS parameterscould recognize only

36OK,

1.2M

and

720K floppydiskdrives. However,using

the JEI043 (with its

BIOS

enabled) it is possible to use a

1.44M floppy diskdrive. If

you

havea 1.44M floppy disk

?rive,

you

can trick the AT CMOS parameters

oy

telling

It

you

have

a

720K

floppy.

13

14

JE1003

JE1007

JE3005

JE3010

JE3020

JE3025

JE3030

Award BIOS

AMI BIOS

With

these

computers

the

SETUP

program

resides

in

the

BIOS ROM. This

enables

you

to

setup

the

CMOS

parameters

to recognize

the

type

of

floppy

disk

drive

connected before

bootup

takes pface. These

motherboards

can

recognize all four floppy

disk

drives

types

as

well. All

of

the

JEl003s

and

most

of theJE1007s

came

with

an

Award

BIOS. Some

of

the

laterJE1007s

and

all

of

the

JE30xx series

motherboards

came

with

AMI

BIOS.

To

invoke

the

setup

program

from

an

Award

BIOS

computer,

perform

the

following:

1.

Tum

the

computer

on. It will

start

to go

through

a

power

on

self-test (POST).

2.

As

soon

as

it

appears

to

have

finished the POST

and

before the

co(p)ter

accesses the floppy disk

drives, hit (CtrI](Alt]

Esc.

Release all three.

NOTE:

In

the

Award

setuR

program,

the

360K

floppy

disk

drives

may

be

referred

to

as

double

sided

drives

and

the

1.2M

floppy'

disk.

drive

may

be

referred

to

as

high

density

or

high

capaclty

dnves.

To

invoke

the

setup

program

from

an

AMI BIOS

computer,

perform

the

following:

1.

Tum

the

computer

on. It will go

through

a

power

on

self test (POST).

2.

When

it

prompts

to

enter

system

setup, hit

(Del).

3.

When

it

prompts

to

run

SETUP,

hit

00.

4.

When

it

prompts

to

run

SETUP/

other

(1/2),hit

CD.

TheAMIBIOS automaticallyrecognizesfloppy

disk

drive

types,

but

requires

that

setup

be

run

anyway.

~nce

you

are

in

the

setup

program,

simply

follow

the

dIrectIons

on

the

screen. Select the

type

of

floppy

disk

drive(s)

you

have

installed,

then

save

the

results. The

computer

should

then

reboot.

15

DOS

Capacities

180K

Diskettes

In

order

to

use

your

JEI043

you

will

need

DOS (Disk

OperatingSystem).

Thisissoftware

that

you

can

buy

from

most

software

mail

order

houses

and

softwarestores. The

two

most

common

types

are

MS-DOS

and

PC-DOS. Both

should

work

fine WIth

the

JE1043.

PC-DOS is

the

operating

system

that

is available for the

PC,

XT

and

AT

computers

made

by

IBM

and

is sold

under

the

IBM

name.

MS-DOS is

written

for the compatibles

on

the

market

like

Compaq,

Leading Edge, etc. All Jameco

Electronics'

motherboards

are fully

~M

compatible so

they

will function

with

either

PC-DOS

or

MS-DOS.

Each

of

these

types

of

DOS, PC-DOS

and

MS-DOS,

have

come

in

numerous

versions: 2.1, 3.0, 3.3, etc. If

you

plan

to

use

a 720K 3.5

inch

floppy

disk

drive

you

will

need

DOS

version 3.2

or

higher.

If

you

plan

to

use

a 1.44M 3.5 inch

floppy

disk

drive

you

will

need

DOSversion 3.3

or

higher.

We

recommend

that

you

use

PC-DOS 3.3.

Insert a DOS

boot

diskette into

the

first floppy

disk

drive

(drive A:)

and

close

the

door

lever.

Try

to

format

a

blank

diskette

in

the

first floppy

disk

drive

(drive A:).

If

you

have

a second floppy

disk

drive

(drive

B:),

try to

format

a

blank

diskette

in

It

as

well.

Refer to

your

DOS mat:lual for information

on

DOS

operations.

When

formatting

and

using

diskettes,

you

must

be

aware

of

the

different

types

of

diSKettes

on

the

market

and

what

floppy

disk

drive

types

they

work

in~

This is

the

diskette

capacity

that

was

used

in

the earlier

systems

that

used

sin~le

sided

floppy

disk

drives. These

diskettes

are

labeled, 'Single

Sided/Double

Density".

16

-----

--

~

-

~-

360K

Diskettes

1.2M

Diskettes

720K

Diskettes

1.44M

Diskettes

This

is

the

type

you

will find

most

systems

using. 5.25"

360K

floppy

disKettes

are

usually

labeled, "Double

Sided,

Double

Density","DSDD"

or

even

"2S2D".

There

are

360K

floppy

disk

drives

designed

to

use

only

360K diskettes.

You

can

only

format

3601<

(double

sidedl

double

density)

diskettes,

and

the

older

180K (single

sided

I

double

density)

diskettes

with

360K

floppy

disk

drives. It is

not

recommended

that

you

format

SIngle

sided

diskettes

in

360K

drives

(unless

you

use

the

"II"

DOS

format

parameter)

because

these

diskettes

are

not

designed

to

hold

data

on

the

reverse

side. Jameco Electronics offers

360K

floppy

disk

drives: JE1020, JE1021, FD55B

and

TM100-2.

This

type

became

popular

when

the

IBM AT

came

out.

5.25" 1.2M

floppy

aiskettes

are

usually

labeled, "Double

Side,

High

Density".

The

1.2M

floppy

disk

drives

designed

for 1.2M

diskettes

will also

read

360K diskettes.

When

using

360K

diskettes

in

a 1.2M

floppy

disk

drive,

it

is

recommended

that

you

only

perform

read

and

write

operations

on

previously

formatted

diskettes.

Formatting

360K

diskettes

in

1.2M

floppy

disk

drives

will

not

be

reliable. Jameco ElectronIcs offers 1.2M

floppy

disk

drives: JE1022

and

FD55GFV.

The

later

IBM ATs

had

the

option

of

installing a 720K

floppy

disk

drive.

720K

diskettes

are

3.5"

double

sided,

double

density

normal

capacity

diskettes.

The

diskettes

are

usually

not

labeled,

out

can

be

distinguished

by

a

single notch.

These

diskettes

come

with

a small

write

protect

notch

on

one

corner.

When

open,

the

diskette

is

write-protected.

When

the

notch

is closed,

the

diskette

can

be

written

to.

You

may

format

and

use

only

720K

diskettes

in

720K

flopp~

disk

drives. Jameco Electronics

offers a 720K

floppy

disk

drive: MF353B.

This

is

the

high

density

version

of

the

3.5" size

floppy

disk

drives.

These

diskettes

are

sometimes

labeled, "HD",

but

can

easily

be

distinguished

by

two

notches.

These

diskettes

come

with

a

write-protect

notch

(just

as

720K

17

Signal

Description

types),

and

a

density

notch.

The

density

notch

allows

the

f.44M

floppy

disk

drives

to

determIne

which

floppy

diskette

type

is

installed. Since 720K

diskettes

lack

the

second

notch,

1.44M floPRY

disk

drives

can

detect

when

a 720K

diskette

is instal

lea

and

when

a 1.44M

diskette

is

installed. 1.44M

floppy

disk

drives

can

write

and

read

reliably

to

both

72DK

and

1.44M diskettes. Jameco

Electronics offers a 1.44M

floppy

disk

drive: MF355B.

NOTE:

You

may

come

across

older

(first

release)

1.44M

diskettes

that

did

not

have

the

density

notch

.

These

had

only

the

single

write-protect

notch

and

may

look

like

720K

diskettes

to

most

1.44M

floppy

disk

drives.

In

this

case,

you

may

have

to

disable

the

dens~

·

t

select

circuitry of

your

1.44M

floppy

disk

·

drive

(via

jumpers)

orcing

the

drive

to

see

1.44M

capacity

only.

Refer

to

the

drive

ocumentation

or

the

manufacturer

on

how

to

accomplish

this.

34-pin

Edge

Signal

Name

Connector

2

Unused

4

Unused

6

Unused

8

Index

10

Motor

Enable

A

12

Drive

Select

B

Drive

Select

A ,

14

16

Motor

Enable

B

18

Direction

20

Step

Pulse

22

Write

Data

24

Write

Enable

26

Track

0

28

Write

Protect

30

Read

Data

32

Select

Head

1

34

Disk

Change

All

odd

1-33

Ground

18

Technical

Support

Customer

Service

Foreign

Customers

Obtaining Assistance

Jameco Electronics carefully selects

and

tests all of

our

products. However,

even

the

best

tested

and

documented

products

canstillcause

you

an

occasionalproblem

..

If

you

experience difficulty

in

either assembly

or

operatIon of

your

equipment, recheck cable connections

and

configuration settings against this

document

and

any

other

addenda

that

may

nave

been

included. If

you

have

exhausted all

other

options

and

are

still encountering

difficulty, refer to

the

appropriate

section below for

assistance. .

If

you

have

exhausted all

other

options

and

are still

encountering difficulty,

our

Technica~

?upport

Staff are

available

between

7am

and

Spm, PacIfic TIme,

Monday

through

Friday.

When

you

call, please

have

the

equipment

in

question

handy,

along with the necessary

customer

and

order

numbers. Ifappropriate,pleasewrite

down

DIPswitchsettings

or

other

configurationdata. The

technicians

may

need

all ofthisinformationto fully assist

you. The

phone

number

is (415) 592-9990.

Discrepancies

in

shipment, returns, exchanges

and

refunds

are

handled

by

our

Customer

Service

Departme~!.

T~ey

are

also available

betw~en

7am

an~

5pm,

Pacific Time,

Monday

through

Friday. Their

number

is (415) 592-8121.

If

you

are

locat<:d

outside

the United S.tates,

you

may

find

it

more

convenIent to contact

us

by

eIther FAX

or

Telex,

both

available

24

hours

a day. InquIriesshould

be

marked

to

the

attention of either Customer Service

or

Technical

Support.

Our

FAX

numbers

are (415) 592-2503

and

(415)

595-2664.

Our

Telex

number

is 176043, answerback:

JAMECOBLMT.

/

19

Corrections If

you

run

across

any

errors

or

omissions in this

manual

or

the

manual

does

not

explain something thoroughly

enough

please write to

us

and

let

us

know. Feedoack

from

o~r

customersprovidesforconsistentlyhighquali

ty

now

and

in

the future. Please reference the

document

and

;evision

numbers

as

wellasthe printing

date

(located

on

the

cover of all Jameco Electronics documentation)

when

writing so

that

corrections can

be

made

as

easily as

possible.

Address

correspondence to:

JAMECO

ELECTRONICS

1355 Shoreway Road

Belmont, CA 94002

ATTN: Technical

Support

20

BIOS

Boot

Bus

Glossary

Basic

Input/Output

System.

Normally

stored

in ROM,

BIOS

routines

provide

for

the

basic"housekeeping"

chores

for

the

hardware

configuration. The

CPU

relies

on

the

BIOS to

provide

information

on

interfacingto

the

various

types

ofhardware.

Ori~nally

referredto"pull

up

by

the

bootstraps."

Causing

the

CPU

to re-initialize itself. See COLD BOOT

ana

WARM

BOOT.

A series

of

wires

that

conveys

information

to a

large

number

of

devices. See EXPANSION

BUS.

Bus Speed

The

frequency

of

the

clock

si~al

supplied

to

the

expansion

bus.

This is

not

necessarily

the

speed

at

which

the

processor

is

running.

CGA

Clock

Speed

Cold Boot

CPU

Color

Graphics

Adapter.

Provides

RGB video

at

320x200,

4 colors

from

a

palette

of

16.

The

frequency

of

the

clocksignal

supplied

to

the

processor

(i.e. 8MHz).

Causing

the

CPU

to re-initialize

by

removing

its source

of

power.

This

can

be

accomplished

either

by

turning

the

power

off

and

on

or

pressing

a RESET SWITCH.

Cent~al

ProcessingUnit.

In

PC

and

PC./XT

machine~,

the

CPU

IS

an

Intel

8088.

In

PC/

AT machInes,

the

CPU

IS

an

Intel 80286.

In

386 machines,

the

CPU

is

an

Intel 80386.

21

Daisy Chain Describes.similar.devices

connec~ed

al?ng

a single cable.

Often,

daISY

chaIn cables contaIn "flIpped" wires

that

differentiate

one

device from

another

on

the cable.

DIP

Dual

InlinePackage. Describes

integrated

circuits,cables,

connectors, etc.

that

utilize a

dual

row

of

pins

layout.

DIP Switch

l!suallya

set

of

four

or

eight small switches

that

are set

eIther

on

or

off.

Normally

scanned

only

at

time

of

BOOT,

these

often

select

system

options.

DOS

EGA

Expansion

Bus

HGA

Disk

Operating

System. DOS is responsible for the

management

of

the

computer

and

itssoftware. In

addition

~o

standard

DOS

commands,

many

other

utilities

are

often

Included. The

two

most

popular

versions

of

DOS for PCs

are

PC-DOS

by

IBM

and

MS-DOS

by

Microsoft.

Enhanced

Graphics

Adapter.

Provides

RGB video

at

640

x 350

or

640 x 480, 16 colors from a palette

of

64. Usually

capable

of

emulating

CGA

and

HGA.

In-an IBM-style

computer,

the

expansion

bus

consists of

a

number

of

connectors

or

slots connected

in

parallel to

the

processor. In traditional designs,

the

expansion

bus

and

processor

were

driven

from

tne

same

oscillator clock

(i.e. 8MHz). .In

newer

designs,

the

proce~sor

may

be

clocked

at

a

hIgher

rate

for

performance

whIle the

bus

is

clocked

at

a

lower

rate

to

accommodate

slowerexpansion

cards.

For

example,

the

JE3010s processor

operates

at

16MHz

while

its

bus

is clocked

at

8MHz

:

Hercules

Graphics

Adapter.

Provides

TTL video

at

750 x

348

in

2 colors (monochrome).

22

Jumper

Block

Logical

Drive

MDA

Physical

Drive

Processor

RAM

ROM

A

rectangular

piece

of

metal

in

a plastic casing, usually

black,

that

fits

over

two

pins

of

a

jumper

block to

make

an

electrical connection

between

them. This is also called a

"Strap".

Two

or

more

pins

side

by

side

protruding

from a circuit

board

that

can

be

electrIcally connected

with

a jumper.

These

are

used

to configure

the

circuit for different

condi

tions.

DOS assigns

one

or

more

logical

drives

to

each

physical

drive

and

assigns

them

a

unique

alphabetic designator.

Drive

A:

can

be

a

floppy

disk

drive,cfrive

B:

can

be

a RAM

disk,

drive

C:

can

oe

the

first half of a

hard

disk

drive,

drive

D:

can

be

the

second half

of

a

hard

disk

drive, etc.

Monochrome

Display

Adapter.

Provides TTL

output,

80

x

25

text only, 2colors (monochrome).

This is

the

actual

drive

itself. A floppy

disk

drive

itself

would

be

considered

one

physical drive.

See CPU.

Random

Access Memory. This is

memory

that

the

computer

can

change

randomly.

This is the

part

of

memory

that

the

computer

uses

for

programs

and

data.

Once

power

is

turned

off to

the

computer, the RAM

contents

are

lost.

Read

Only

Memory. This is

memory

that

cannot

be

changed.

When

power

is

turned

off

and

backon,

the

data

is

not

lost. Generally

used

for BIOS.

23

SETUP

SIMM

SIPP

Terminator

VGA

This is a

program

(which

can

be

stored in the BIOS ROM

or

on

a dIsk)

that

is necessary to configure the

parameters

needed

by

the

motherboard.

Usually

found

only

on

AT

style

computers.

These

parameters

tell the

motherboard

upon

boot-up

the

follOWIng information: time,date,

drive

types,

monitor

type"memory

amount

and

type.

Singular Inline

Memory

Module. A compact expansion

board

containing

RAM. SIMM

normally

refers to a

memory

module

with

a

card

edge

connector.

SingularInline

Package

Memory

Module. A compact

expansion

board

containIng RAM. SIPP normally refers

to a

memory

module

with

protruding

pins.

Terminating

resistor pack. Used

in

disk

drives

to filter

out

line nOIse

and

terminate

a

data

cable. Consists

of

a

row

of

220

to

330

ohm

resistors

molded

together. This is

usually

installed

in

a socket. It is

removed

from all

drives

except

the

disk

drive

at

the

end

of

a DAISY

CHAIN

cable.

Video

Graphics

Array. Provides

many

RGB

or

Analog

modes

up

to 800 x 560.

Can

display

256 colors from a

palette

of

262,000. Usually

can

emulate

EGA, CGA

and

HGA. .

Warm

Boot

Toreset

the

computer

without

removing

power.

TheCPU

~s

told to re-initialize itself. The

procedure

to invoke this

IS:

Press

and

hold

the

(CtrI]

key

down.

Press

and

hold

the

[Alt)

key

down.

Press

the

[DeI)

key

down.

Release all three.

24

NOTES NOTES

Jameco Electronics JE1043 User manual

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