NEC FDI036A Product Description

FDI036A

PreJ

I

mIn

a..

, j

3.5-

FLOPPY

PRODUCT

806-520236-0

DISK

DESCRIPTION

REV.

~O

DRIVE

NEC

Corporation

PROPRIETARY NOTICE

The by all

to

information

and

patent, use, therein,

others.

and

are'the

sales except

proprietary

Specifications

introduction

and

property

proprietary

rights

to

The

foregoing

parts.

remain.subject

of

design

of design,

thereto,

the

extent

improvements.

disclosed NEe

rights

does

to

herein

Corporation.

manufacturing,

and

to

any

are

not

apply

change

were

article expressly to

vendor

to

allow

originated

NEC

reserves

reproduction

disclosed

granted

the

Copyright NEC

Corporation

Printed

in

1985

Japan

~

- i -

Edition

Description

1

Prepared

in

August

1985

-

ii

-

CONTENTS

PROPRIENTARY

CONTENTS

1.

GENERAL

2.

2.1

2.2

2.3

2.4

2.5

Drive Drive

Drive Disk Disk

NOTICE

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

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

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

SPECIFICATION

Specifications Structure

Opera~ion

Specifications Structure

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

.•••••••••

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

...

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

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

...

~~

~

i

iii

1

2

5

7

8

~

. 9

3.

INTERFACE

3.1

3.2

3.2.1

3~2.2

3.2.3

3.3

3.3.1

3.3.2

3.4

3.4.1

General

Physical

Electrical

Input

..........' .

Description

Specifications Signal Power Connector

Signal Driver/Receiver

DRIVE

Types

Connector

Type

Specifications

Level

Signals

SELECT

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

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

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

.

and

Configuration

and

Configuration

......

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

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

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

...

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

a

to

3

(DSO

to

3)

11

13

15

16

17

18 18 18

20

iii

3.4.2

STEP (STP)

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

20

3.4.3

3.4.4

3.4.5

3.4.6

3.4.7

3.5

3.5.1

3.5.2

3.5.3

3.5.4

3.5.5

3.6

DIRECTION SIDE WRITE

WRITE

MOTOR

Ou

tputSignals

INDEX TRACK READY READ WRITE

Interface

SELECT

GATE DATA ON

(MON)

(IDX)

00

(TKO)

(RDY)

DATA

PROTECT

(RDT)

Signal

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

(SSL) (WGT) (WDT)

(DIR)

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

.

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

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

.

...

~

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

.

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

(PRT)

Timing

21

22

22 23

24

24 24

25 25 26 27

3.6.1

3.6.2

3.6.3

3.6.4

3.6.5

3.6.6

3.6.7

3.7

3.7.1

4.

OPERATING

4.1

Step Access Write Read

Write DRIVE Autochucking

Power

Setting

Interface

Input

PROCEDURES

and

Track

Timing

Data SELECT

Power

a

Floppy

00

........

•••••••••••.•••••••••

Timing

and

Timing

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

.

Specifications

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

Output

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

i.

:-

I

........

..

~.

Signal

Timing

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

. .

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

Disk

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

27

.

27

28 28

29 29

29

30 30

31

4.2

Removing

the

Floppy

Disk

iv

31

5.

4.3

EXTERNAL

Display

SHAPE

Lamp

AND

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

INSTALLATION

•••••••••••••••••••••

31

32

6.

5.1

5.2

5.3

PACKING

External

Installation Recommended

AND

Shape

TRANSPORTATION

and

Fitting

•.•••.•••.•••••••.•••••••••••••••.

Air

Flow

•••••••••••••.•••••••••••.

Hole

Positions

•••..

32 33 34

35

- v -

1.

GENERAL

The

FDl036

micro-floppy

disk

drive

is

a double-sided tracks

The manual)

jacket

The volume

per

Micro-floppy

used

with

FDl036

one

minifloppy

approximately capacity.

micro-floppy

inch

(TPI).

disk

for

the

auto

shutter.

micro-floppy

fourth disk

560

that

drives

g,

disk

(abbreviated

FDI036

disk

of

conventional

and

weights

yet

has

drive

is

contained

drive

a

comparable

with

as

has

only

disk

a 5-l/4

135

in

a

total

w

storage

this hard

The

previous short slim

The

model

drive brushless it

consumes

The

low

In

this

is

abbreviated

depth

noise

manual

with

uses DC

only

FD

(130

a

motor,

design

the

1035

series

mm).

thin

thickness

direct-driven

and

2.1

watts

assures

FDI036

as

FDD.

is

The

FD

by

due of

micro-floppy

the

1036

(30

spindle the

power

silent

short series

mm).

with

low

power

(Typ).

operations.

disk

model

is

a

drive

with

the

design

-1-

2.

•

GENERAL

SPECIFICATIONS

2.1

Drive

NO.

Recording

1

2

Capacity

Data

3

Maxim\D1

4

5

Tracks

Average

6

Seek

7

(Track-to-track)

8

Seek Track

9

10

Start

Standard

11

external dimensions

(NOTE

.-

--

specifications

Item

mode

Unformatted Forma

transfer

bit

density

rotational

time

settling

density

time

3)

(NOTE

Width

Height Depth

rate

time

ted

.

2)

(NOTE

speed

1)

Specification

MFM

1

640

250

8717

160

~

300

3

15

135

800

30

101.6

146

MAX

" ,

L

(1.2)

(4)

(5.75)

FM

0.5

320

125

4359

Unit

-

MB

kB k-bit/sec.

BPI

rpm ms

.,

ms

TPI

ms

\

(in)

mm

(in)

mm

(in)

12

13

Weight Operating

environment condi-

tions

Temperat

Relative

h\D1idity

Max

im

1.DIl

wet-bulb

temperat

ure

56

45

5

'"

20'"80

29.0

(woncondensing)

"-2-

gr

°C

iRH

°C

No

•.

Item

Specification

Unit

14

Power

supply

·Vo1tage

(V)

Start

(NOTE

up

4)

current

Steady-state current

(NOTE

5) requirement

15 16 17

Power Heat Reli-

dissipation

.".

output

ability

18

,"

Disk

life

+12

+5

MTBF

MTTR

Device

Soft

Hard

Seek

ratio

(NOTE

life

errors

.

error

Less 60

0.3

0.26

6)

12000 (Under

~e

0.5 15000 poa

(De

10 or

10

3.0

than

condition)

sign

-9

(Not

less

-l.Z

_6

x 10

0.1

standard

or5years

life)

including

retry

6

90

200

2.1

1.8

2

attempts)

..

rnA

W

kcal/h

-

poa

h

Times/bit

Times/seek

Pass count/

track

.

19

20

Disk

Drive

environment

Temperature

Relative

hunidity

M.ax

im

lU'It

wet-bulb

temPe

rat

ure

Largest temperat

ure

Operating

4

tV

46

(39 "'115)

20

'" 80

29

(84)

20

(59)

Double diskette

Non-operating

(Storage)

-20

(-4

10

40

sided

3.5"

specified

by

Transporting

(Packing)

'" 50

"'122)

-40

(-40

'" 90 5 '" 95

45.

(104) (113)

30

(86)

30

(86)

NEC

'" 60 '

"'140)

Unit

°C

(OF)

%RH

°C

(OF)

°C/h

(OF/h)

-3-

No

.

Item

Specification

Unit

Allowable

vibration

(Except

resonance point)

(NOTE

Allowable

shock

(Less

10

7)

ms)

at

than

NOTEl:

2: 3:

4:

0.5 (Less

100

Hz)

5

16 Time

Dimensions bezel.

If

ON

than

sectors/track,

until

the

disk

signal

2

(Less

100

15

READY

not~nc1uding

is

than

Hz)

after

is

not

invalid.

256

inse

bytes/sector

2

(Less

100

40

MOTOR

that

rted

than

Hz)

-

ON

of

0 r

the

G

time

front

MOTOR

5: 6:

7:

When Under

(1)

FDD

standard

Drive

time

(2)

Actual

time

(3)

Disk

ejection (4) (5)

Motor

Average

per

Excitation

is

in

service

(POH)

head (R/W insertion/

ON/OFF

use

disk

in

READY

use

load

time)

time

three

status.

,I

conditions

directions

8

h,Lday

0.5

h/day

25

times/day

300

times/day

2

h/day

(4

disks/day.drive)

one

R/W

test

8:

by

our

Between

FDD

SG

tester

and

-4-

FG:

for

0

90Kn (DC)

to

79

track

2.2

DRIVE

The

major

functions:

STRUCTURE

component

of

FDD

have

the

following

(1)

(2)

(3)

Base

Constructs

Spindle Rotate spindle spindle driving

Head

carriage Contains across

side

one

motor

the

motor. with pin.

a

the

is

the

frame.

assembly

~

The

a

magnet

assembly

pair

of

disk.

dislocated

directly

disk

and

magnetic

The

R/W

8

by

is

heads gap

tracks

using

set

driven

of inner

the to by

facing

the

DC the a

head

than

on

(4)

that

Step Move

for

of

motor the

head

the

head

carriage

position.

on

Assy

side

by

zero.

using

the

steel

belt

-5-

(5)

Index

sensor

(6)

(7)

(8)

Detect

Track Detect

track.

Write

Detect hole.

Eject

Used

and

the

00

sensor

whether

protect

the

mechanism

fo~

manual

for

automatic

drive

the

sensor

open/close

insertion

position

magnetic

shutter

of

the

head

the

write

and control.

spindle

is

removal

motor.

in

the

prohibition

of

a

00

disk

(9)

(10)

(11)

P.W.B.

Mounts positioning operations,

Display This

Front Dress

is

panel

the

lamp a

electric

of etc.

lamp

installed

circuits

magnetic

that

displays

on

head,

the

that

controls

read/write

a

FDD

Drive

status.

front.

-6-

203 DRIVE OPERATION

When a spindle chucking becomes

sign~l

spindle

When

the

READY

The

magnetic according SELECT

diskette

motor

a

is.true,

motor

the

signals.

of

the

standby

drive

signal

to

is

rotates

disk

the.

reaches

is

head

the

inserted

automatically

is

status.

FDD_becomes

the

selected,

to

the

moves

STEP

pluse

into

finished.

After

specified

it

controller.

to

a

target

and

the

FDD,

untill

Then

the

MOTOR

ready

~hen

rotation

transfers

track

DIRECTION

the

the.

the FDD

ON

the:

speed.

The

desired

SELECT

ready

For

a

is

the converted on

the

For

a recorded converted

signal

for

write

serial

disk.

read

magnetic

from

read/write

operation,

data

into

operation,

on

the

into

head

the

operations.

sent

magnetized

disk

is

serial

is

controller.

the

WRITE

from

pattern

the

magnet~zed

detected

data,

and

selected

DATA

the

controller

by

is

and

sent

by

Now

signal

is

pattern

the

FDD

is

recorded

head

to

the

SIDE

which

and

is

controller

as

a

READ

DATA

signal.

2.4

DISK SPECIFICATIONS

No.

1

2

3

4

5

6

7

Media

Prod Number

uct

type

name

of Recording Number

per

Disk

of

disk

cartridge

Operating

environment

conditions

Item

disks

surfaces

total

size

Temperat

-

Relative hunidity

Wet-bulb

temperature Temperat

gradient

External

Magnetic

tracks

ure

field

3.5-

double

specified

NEC

micro

10 '"

~

'1

20oC/h

4000

Specification

sided

by

NEC

floppy'_disk

90

x 94

60°C

8 tV

~.

29°C

MaximlDll

(50

oersted)

A/m

(50

80%

-

\<

mediun

160

mm

'"

140°F)

RH

(84°F)

(36°F/h)

1 2

or

less

Note

Leave

minutes

the

in

environment

disk

the

at drive

before

least

operating

use.

30

-8-

2.5

DISK

STRUCTURE

The

floppy withinside disk

surface polyethylene magnetic cloth or

The

itself

and

dust.

disk

to

write-protect

The-disk

disk

of

is

which protection. terephthalate

layers.

protects The

has

a

th~

hard

metal spindle. hole

construction

contained

liner

The

liner

the

jacket

hub

and

is

in sheets The

base

consists

disk

surfaces

is

made

wihch

The

hard

automatic'

shown

disk

is

in

a

hard

are

uses

coated

of

used

jacket

shutter.

Figure

jacket

provided

a

with

of

unwoven from ABS

to

scratch

resin.

secure

has

2.1.

for

a

-9-

Figure

2.1

shows

the

disk

structure.

I.

Fig.

2.1

90

Disk

o

I

.I

Structure

-10-

3.

INTERFACE

3.l

GENERAL

FDDIs parallel of depends daisy-chain up

Signal each controller

(a)

FDD

to

FDD.

Parallel

may

Is

4

line

DESCRIPTION

be

connected

or

daisy-chain

which

on

dividual

FDDIs.

The

can

connection,

termination

basic

is

shown

connection

be

connected

system

FDD

in

to

its

controller

configuration.

and

controller.

each

controller

resistors

connection

Figure

3.i.

to

one

are

·controller

provided

to

the

in

The

can

either number

For

control

on

Controller

Signal

Power

Signal

cable

.1

R

FDD

#0

I

maximum

R

FDD

il

length

R:

1 m

u

R

FDD'

#2

Terminating resistor:

2K

R

FDD

#3

0

-11-

(b)

Daisy

Chain

connection

.""

.0

Controller

Signal

cable

Signal

Power

-

total

cable

\/

R

FDD

#0

I

length

...

maximum

\/

R

FDD

#1

I

R:

length

\/

R R

-

FDD

#2

Terminating resistor

1 m

\

FDD

2K

#3

n

Fig.

3.1

Basic

Connection

Modes

~

-12-

3.2

PHYSICAL SPECIFICATIONS

The

FDD

is

connected

to

its

controller

through

a signal terminal connector

connector

is

provided

locations

and

a for

are

power

frame

shown

connector.

ground.

in

Figure

A

The

3.2.

faston

-13-

Power plug

connector

Si

qnal

receptacle

connector

Signal

lu

connector

Fig.

3.2

Connector

Locations

-14-

3.2.1

Signal

The

~ypes

following

and

shows

Configuration

the

signal

connector

PWB

part

surface

configuration

~~""..MJ---!-~J--""--,,--,,,--,,~

Signal

MOTOR

IN

USE

ON

name

1

on

No.

Input

the

I/O

FD

33

Signal

signal

1036:

No.

.....

....c;.-,,--,-....c;.~M-"-"""'-..J-J

Nunber

~

';2

4

Nunber

1 3

Signal

Name

GND

l~·

DRIVE·

SELECT

INDEX

DRIVE

SELECT SELECT SELECT

(MOTORON1)

MOTOR

ON DIRECTION STEP WRI'lE WRI'm TRACK WRITE READ SIDE

DATA

GATE

00

PROTECT

DATA SELECT

READY

3

0

1

2/

SELECT

Input

Output

Input Input Input

Input

Input Input

Input

Output

Output Output

signal

signal signal

Inputsignal

Output

signal

6

8 7 10 12 14

11 13

16 15 18 20

22 24 26

28

30 32

34

17

19

21 23 25 27

29 31

33

5

~

GND GND

9

GND GND GND

GND

GND GND

GND

.

-15-

FG

and

SG

processing

as

follows:

3.2.2

SG

Impedance

R =

100

POWER

The

following

Te

kn

CONNECTOR

configuration:

R

rminator

(~

10%),

AND

shows

FG

C =

O.l~F

CONFIGURATION

the~power

Printed

circuit

+_

8400%%)

(

connector

board

Fig.

Table

3.3

EB

3

2

Connector

3.1

1

Power

number

1

2

3

4 +12 V

EB

4

in

Supply

+5

Configuration

Assignments

voltage

V

DC

GND GND

DC

.

-16-

3.2.3

CONNECTOR

TYPE

Housinq: Pins:

The

the

following

signal

equivalent

171822-4

170262-1

Power pluq

connector

and connector

by

Japan

connector

power

AMP.

Co.,

type

connections

types

Ltd.

may

are

recommended

for

also

be

the

FDD;

used.

Power rece

for

connector

tacle

Signal receptacle

connector

Si

qnal

lu

Socket:

PS-34SEN-D4Pl-1C-N

(closed-end

PS-34SEN-D4Pl-1D-N

(daisy-chain

both

by Electronics Co.,

Ltd.

or

equivalent

Cable:

3365-34 Sumitomo-3M,

or

equivalent

Fig.

type)

Japan

Industry,

by

Co.,

3.4

connec

Aeronotic

NOTE

1

Ltd.

Connector

tor

Locations

and

Recommended

Models

-17-

3.3

ELECTRICAL

SPECIFICATIONS

3.3.1

3.3.2

SIGNAL

All

the

TRUE FALSE

LEVEL

the

input/output

following

=

Logical

=

Logical

DRIVER/RECEIVER

The

driver

controller

capable

which is

of

obtaining

electrical

ftOft Wlft

outputs

an

open

signals

(LOW

(HIGH

collector

sink

are

at

specifications:

level)

signals

0,

+2.5

from

output

current

l

of

TTL

level

to

+0.4

to

+5.25

FDD

to

circuit

maximum 40

with

V

the

mA at from gate'

LOW

level.

the

terminating

The

controller

receiver

to

with

FDD

2k

is

Ohm.

which

a

receives

Schmitt

signals

trigger

-18-

·Con

troller

Cable

1.0

m

length

(Max.)

+5V

FDD

7438

equivalent

or

Driver

Receiver

Fig.

+5V

3.5

TiT

rf1

TiT

(MIN)

;;;-

Driver/Receiver

i7T

\h

m-

;;;-

Circuit

LS14

equivalent

7438

-equi

or

valent

Driver

Example

or

-19-

3.4

Input

Signals

3.4.1

3.4.2

DRIVE

SELECT

SELECT specified level

selects effective FDD

is

specified

selection

STEP (STP)

Pulse

signal

direction

0

to

0

to

FDD.

the

input/output

plugs

which

specified

3

(DSO

3

are

signals

Setting

corresponding

by

shorting

a

to

3

on

moves

by

the

to3)

one

of

lines.

one

the

PWB.

the

magnetic

di~ection

for

DSO

FDD,

of

selecting

to

DS3

which

the

head

select

DX

to

makes

in

a

LOW

the

signal. LOW

to

HIGH head input

moves

pulses.

conditions.

The

head

level

over

begins

of

as

Figure

this

many

moving

signal.

cylinders

3.6

shows

at

the

The

as

the

pulse

rising

magnetic

number

timing

from

of

-20-

u U

u

3.4.3

DIRECTION

Signal

movement.

toward toward

This

instructing

the

signal

JTJ_Tl

Fig.

SELECT

The

outer inner

must

Tl:

T2:

3.6

HIGH

3 ms

0.8

STEP

(DIR)

the

level tracks tracks.

be

switched

_.I

min.

~s

~

Pulse

direction

indicates

and

2 ms

Specification

of

the

LOW

definitely

magnetic

the

direction

~level

o.all','S

head

indicates

3.4.4

before STEP

SIDE

Signal read. the

This the

the

signal.

SELECT

selecting The

side

read/write

·0·

signal

trailing

(SSL)

HIGH

of

must

operation.

one

level

the

be

edge

of

disk

switched

(positive

the

selects

and

heads

the

100IIs

going)

used

magnetic

LOW

level

befor

for

of

the

write head selects

start

or

on

of

-21-

3.4.5

WRITE

GATE

(WGT)

3.4.6

This data LOAD

signal when

signal, start gone

to

WRITE

Pulse the

disk.

to

LOW head of

changes

magnetization

writes

at

HIGH

switch

positioning,

HIGH

DATA

signal

level.

(WDT)

that

Every

level,

direction,

the

data

level.

the

for

supplies

time

write

on

th~

1 ms

the

when

Do

SIDE

data

signal current which disk.

at not SELECT

after

changes

LOW

turn

this

to

be

changes

in

the

level

off

signal,

~ignal

written

from.

~agnetic

the

and the

reads

HEAD

or

has

to

HIGH

direction

Figure

3.7

shows

the

WRITE

DATA

specification.

-22-

WDT

(PM)

2Tl

WDT

(MFM)

Fig.

I.

Tl:4-

T2:

3.7

Tl:

T:

Tl

4

1.1s

0.lS'V2.S

1.5Tl

./.

lJS

0.15

WRITE

~

2.5

DATA

lJS

J

lJS

(2Tl:

Pulse

(2Tl:

8

8 lJS ±

Specification

1.1s±25

25

ns)

3.4.7

MOTOR

The

when

The

to

1.

*

2.

3.

NOTE: *

ON

spindle

the

following

rotate

Plug Plug Plug

0

(MON)

motor

disk

the

1:

Interface

2:

Interface

3:

Interface

mark delivery.

rotates

is

inserted. signals spindle

indicates

on

the

motor.

pin pin pin

setting

by

making

MON

14

(DRIVE SELECT

16

(MOTOR

2

(MOTOR

this

plug

position

ON

can

signal

0)

1 )

be

when

LOW

used

2)

-23-

3.5

Output

Signals

3.5.1

INDEX

Signal

is

output

the

output

The

reading

reference.

(IDX)

for

INDEX

(lDX)

indicating

once

pulse

edge

every

revolution.

specification.

of

the

u u

t-::

the

origin

pulse

on

is

the

Figure

used

dis~.

as

3.8

a

-....1

Tl

=1'V8m.s

T2=200

This

shows

±3ms

3.5.2

TRACK

When

heads

This

track step

Fig.

00

at

are

signal

00

motor.

3.8

(TKO)

LOW

on

sensor

INDEX

level,

track

is

generated

and

Pulse

this

·00·.

the

Specification

signal

by

(excitation)

indicates

the

signal

from

phase

that

of

the

-24-

3.5.3

READY

(RDY)

Signal This selected,

ti)

(ii)

(iii)

(NOTE) When

indicating

signal

DC

A

The

reached

MOTOR

disk

goes

if

the

power

is

rotational

the

ON

that to following

is

supplied.

mounted.

90t

of

spindle signal

LOW

speed the

FDD

is

level,

conditions

of

specification.

motor

ready

when

(5V,

the

is

to the

l2V)-

floppy

rotating

operate.

FDD

are

is

satisfied:

disk

by

has

the

3.5.4

READ

Data

string.

Figure normally

DATA

read

3.9

(RDT)

from

shows

recorded

a

disk

the

data

which

READ

is

DATA

read.

shaped

signal

into

obtained

a

pulse

when

-25-

Read

(FM)

data

(ROT)

Read

(MFM)

3.5.5

data

(ROT)

T3

I.

T3

T4

Fig.

WRITE PROTECT

If

a

inserted

disk

3.9

with

into

./.

4llS IllS

READ

(PRT)

the

T

3

1.5

(Typ)

±500ns

DATA

its

drive,

.1

Signal

WRITE

Specification

PROTECT the

PRT

hole line

2T3

uncovered goes

.I

is

low,

which

places

the

FDD

in

-26-

the

WRITE

PROTECT

state.

3.6

Interface

Signal

Timing

3.6.1

3.6.2

Step

Track

Access

and

(STP)

00

Track

(TKO)

timing

00

u

II

2•5

ms

(max.)

1

ms

(min.

:

)

Write"gate

Step

Direction

(DIR)

(STP)

(NOTE)

(WGT)

select

An

interval between changes.

step

of

pulses

at

-

0.8

:L

3

least

1.1s~2

ms

when

ms

18

ms

(NOTE)

18

IDS

the

L

(min.

)

-i

is

required

direction

,

0.8 (min.

1.1s )

-27-

3.6.3

Write

Timing

Step

Side

write

3.6.4

Step

(STP)

select

gate

(STP)

Read

(SSL)

(WGT)

Timing

18

IDS

(min)

100'

..

.

1.1S

-\

(min.

,

.

11

I

ms

(min.)

U

JK

)

18

ms

-...----I~~~

(min.)

Side

Write

Valid.

select

gate

read

(SSL)

(WGT)

data

100

1 ms

1.1S

(min.)

Valid

-28-

3.6.5

Write

Data

Timing

3.6.6

J.6.7

Write

write

DRIVE The

valid

gate

data

SELECT

drive

500 active. Autochucking

Power

supp~

- 5 V

12

V"

(WGT)

(WDT)

control ns

---

and

Output

after

Timing

and

that·the

8

~S

Signal

status

(max.)

DRIVE

Timing

signals

are

SELECT

8 l.lS

become line

(max".)

is

x

Disk

Spindle

Index

Spindle

X

is

in

internal

signal

l

of

Ready

the

...

Chucking

FDD.

-

Status

Completion

-29-

3.7

POWER

INTERFACE

3.7.1

INPUT

....

Table

sequence

A

POWER

3.2

Table

Voltage

Current

(NOTE

Ripple

3.2

Item

1)

voltage

SPECIFICATIONS

shows

for

Activating Average

seek

Average

read/write

Average

standby

the

each

Input

(NOTE

when

(NOTE

DC

Power

6)

time

2)

power

Specifications

.. +12V power

+12V1:5% 350

mA

IDA

140

90

IDA

to

~t

Less

than

200mVp~p

specifications

is

not

needed.

+5V +5V.±5%

140 160

,~

200

0.1

M 60'mA

or

less

100mVp-p

....

power

mA

or

for

,

less

FDD.

NOTE

1:

2:

3:

4:

5:

6:

This

is This Data power

in

Write

If

power

moving

inner

returned

Do

not

supply

Including

FDD includes is

protected

supply

operation.

supply

the

side

to

turn

by

average

ON/OFF

carriage

for

track

on

the

ripple

the

is

1

and

relay,

comsuming spike in

spite

when

charged

to

track,

0

immediately.

off

etc.

voltage.

FDD

the

current.

of

DC

is

after outer

carriage

power

not

or

is

-30-

4.

OPERATING

PROCEDURES

4.1

4.2

4.3

The

basic

power

Setting

(1)

Removing

(1)

(2)

Display

on/off,

Insert the

Make finished. To press

operating

A

Floppy

Eject

the

sure

eject

the

Lamp

disk

the

button

Floppy

the

Eject

procedures

setting

Disk

diskette

disk

write/read

diskette

pops

button.

and

slowly

out.

from

for

FDD

removal.

into

operation

the

include

the

drive,

of

slot

FDD

just

the

until

has

The

It

Display

comes

on

lamp

while

indicates

the

FDD

the

FDD

status.

is

selected.~

-31-

5.

EXTERNAL

SHAPE

AND

INSTALLATION

5.1

External

Figure positions

..

0

+I

"!

t"'l

...

o

..

+l

0

"!

+1

...

~

0\

0

...

5.1

Shape

shows

.

146:

1

r

'r

(

and

0

s

•

70±a·S

the

60::°·5

-

+

Fitting

external

..

31±0.S

)

-

~

::

21

--

Hole

to.slS

Positions

shape

.-~

.~

6;: o.s

:~.S

s

4:O·

..

+1

and

..

~

0

...

~

+1

0

C'l

Q/

r&I

~

..

~

i~

~

Q

fitting

.

6.3%0.5

~

;n

X

32:tlt

21.9:O·

-

hole

s

4-Rl.2

:/

I

II!

0

+I

\0

M

8-4t4-40UNC

(NO'l'E

NOTE

Fig.

1)

+

-.1

1:

5.1

'+"

I

""

The

External

""

metric

-

70:!:D.S

60%O·s

screw

Shape

31:

type

and

o.s

2l.:!:0.s

...

-]]I

II""

.J

...

..

-,~

_4

is

also

Fitting

...

\.;.

0

+I

r,-

LJ

8.6

Unit

[1IIlIl]

available.

Hole

,

t

±o-.s

r

Positions

-32-

5.2

Installation

(1)

FDD

(a)

(b)

(c)

may

be

Vertical

Horizontal

o

installed

in

the

following

manners:

a

.

(a)

Consider that from installing

it

CRT,

the

may

location

be

power

it

(b)

protected

supply,

inside

of

CRT.

FDD against

etc.,

in

the

especially

(c)

system,

noise

so

when

-33-

5.3

Recommended

Air

Flow

(1)

(2)

Installing

~

--==-c::=.

/ , / " 3

..-.L

nO

I

U·

D \

\

/"

/

~~

Installing

/_--

1

~

_/

one

Ventilator

two

/

\~

FDD

FDDs

Ventilator

NOTE:

o

\

I

Appropriate ambient considerably.

cooling

temperature

is

required

around

FDD

if

rises

the

-34-

6.

PACKING

AND_TRANSPORTATION

(1)

(2)

For

external material make

to

Make shock

sure

FDD.

sure

used

no

during

packing,

in

the

direct

that

FDD

transportation.

either

carrying

shock

will

sustain

use

in

the

of

be

transmitted

no

excessive

packing

FDD

of

-35-