IBM 5114 Maintenance Information Manual

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IBM 5114

I

Diskette Maintenance I nformation

Unit

Manual

Preface

o

This maintenance servicing the engineers using completed

The maintenance major

Maintenance section contains locations, service checks, adjustments, and removal and replacement procedures. The Theory section contains operation

The Using the Maintenance

sections refer you

5110

Appendix A contains installation procedures and general

information

Appendix B contains and

Note:

the

sections: maintenance and theory. The

of

Maintenance Information Manual.

acronyms

MIM

2-37, 2-39, 2-42,2-46, 2-49, 2-52 and

DANGER

these notices and

provided on these

and

IBM

the

this

IBM

information

5114

manual are assumed

5114 education course.

information

5114.

to

the

manual is

diskette

appropriate sections

unit.

manual

information

Library

to

Customer

(MIM)

about

and Diagnostic Aids

SY31-0550.

for

the

IBM

5114.

definitions

that

are used in the

pages

2-20,2-21,2-23,2-25.2-26,2-32,2-36,

CAUTION

write

your

pages.

of

terms, abbreviations,

MIM.

3-2

have

notices.

own words on the blank lines

If

desired, translate

be used

to

have

is in

the

of

for

two

the IBM

• IBM

Publications

information

5110

can be

Maintenance Information Manual,

SY31-0550

• IBM

5110

System Logic Manual,

5110

System Maintenance Analysis Procedures,

SY31-0553

• IBM

Note: Tektronics, as used in

of

5114

Parts Catalog, S131-0626

Tektronics, Inc.

found

in the

following

SY31-0552

this

manual, is a trademark

()

o

Second

This

illustrations

Changes are Technical

Publications and to

This Reader's publication. Publications of obligation

©Copyright I nternational

Edition

is a major

for

technical

the

branch

publication

Comment

the

information

(January 1979)

revision

are indicated

periodically

Newsletters

are

not

information

office

could

Form

If

the

form

Department

you

whatever.

of

or

stocked

serving

contain

supply

You

and obsoletes

by

a vertical

made

to

in new

at

the

about

your

technical inaccuracies

at

the

has

been removed, address

245,

Rochester, Minnesota

in

may,

of

Business Machines

SY31-0551-0.

line

the

information

editions

back

of

address below. Requests

the

system should

locality.

of

this

any

way

course,

to

the

this

publication.

publication

it

believes

continue

Corporation

Changes

left

of

the

change

herein: Changes

for

be

made

or

typographical

to

make

your

comments

55901.

IBM

appropriate

to

use

the

information

1978,

or

additions

or

addition.

will

be

copies

of

to

your

errors.

comments

to

IBM

may

use

without

1979

to

reported

IBM

publications

IBM

representative

Use

about

Corporation,

and

distribute

incurring

you

supply.

the

text

in

the

any

and

any

or

o

Legend

~

<_

..

.R.2JL.

(

~

C~

r

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@

-L

T

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Resistor

Test Point

Coil

Phototransistor

Light Emitting Diode

Capacitor

Fuse

Transformer

Ground

C'

C

---t>I-

*

~-

~~

-7>-

Diode

AC Line Cord

Switch

Connector

(N/O)

(N/C)

Plug

iii

This page is intentionally

left

blank.

~,

iv

The

IBM

5114 has the

• Voltages are present on the connector terminals in the

diskette drive when

motor

• The continuous use.

and solenoid cases become

following

the

drive

specific DANGERs:

motor

is turning.

hot

after

Safety

('

c

the

power

• Voltage is present at the

power

cable is disconnected and the immediate

power

off

(lPO) switch is on.

are

• Some DC voltages I

PO

switch

is

off.

DANGER notices in this manual are personal safety precautions.

CAUTION notices precautions.

present in the 5114 when the

in

this manual are machine safety

cable socket when

o

C:

v

CE

SAFETY

All

Customer precaution tices

while

1.

You

or

advise

2.

Remove

bling

power

er

3.

After'

Off

229-1266.

4.

When

having

live

the

a.

b.

c.

d.

e.

f.

5. Wear

a.

b.

c.

d.

e.

f.

6.

Follow

ized

high

and 7 _

Do

not

8.

Avoid

proved

9.

Replace

10.

Lift

this

ment

11.

After

shields,

12_

Each no customer

13.

Place place

14.

Ensure machine

15.

Always one

PRACTICES

Engineers are possible maintaining I BM

should

around

supplies,

Another be Do metal

Use Keep When

are set capacity Avoid machine chased

Using a hammer Power Using Soldering, Cleaning cals, Performing your

not

action

not

equipment

your

manager

all

power,

major

components,

supplies,

or

ins~alling

turning

position

electrical following

tasks, such voltages. These

the

been

by

takes

can

off

or

Pu

II

it

is

absolutely

exposed

cirCUitry precautions:

person

in

immediate

not

wear

cuff

links.

only

insulated

one

hand

using

test

correctly

are used.

contacting

frames,

locally

safety

glasses

or

hand

spring

wire

parts

etc.

any

eyes.

REMEMBER -THEY

special

safety

portion

use

solvents,

approved

using

tools

by

IBM.

worn

or

standing

strain

or

parts

weighing

maintenance,

signs,

and

Customer

on

his

personnel

removed where

that

to

place

trip

machine

no

all

machine

customer.

CE

over

and

observe

work

alone

with

if

you

ac

and

performing

wall

box

tag

it

with a "Do

power

supply

necessary

operating

anywhere

familiar

vicinity.

rings,

wrist

pliers

in

pocket.

instruments,

and

ground

etc.).

if

necessary.

when:

to

di'ive

drilling,

hooks,

attaching

cutting,

with

solvents,

other

instructions

as

handling

instructions

of

chemicals,

by

IBM.

or

test

broken

or

pushing

off

back

over

restore

grounding

Engineer

part

renders

to

hazards.

one

can

tool

kit

it;

for

expected

the

equipment:

under

dangerous

MUST

dc,

when

working

mechanical

changes in

power

cord

to

mechanical

with

watches,

and

that

insulated

poter.tial

Use

suitable

pins,

reaming,

removing

work

that

cathode

the

maintenance

greases,

equipment

tools

and

up

with

muscles.

60

pounds.

all

safety

wires.

is

responsible

products

covers

in

trip

over

covers are

away

from

example,

to

take

hazardous

voltage.

work

alone.

removing

in

immediate

inspection

machine

switch,

Operate"

whenever

work

on

parts

the

machine,

off

chains,

certain

probes

(metal

rubber

riveting,

grinding,

steel

may

be

ARE

when

performing

ray

tubes

outlined

or

that

have

test

equipment.

stronger

Do

not

devices, such

to

unsafe

out-of·the-way

in

place

walk

under

desk

every

safety

conditions

Always

or

circuitry.

lock

it

possible.

equipment or

exposed

controls

bracelets,

that

of

floor

mats,

staking,

etc.

bands.

hazardous YOUR

and

in

manuals.

oils

that

not

leg

lift

any

be

certain

or

before

areas

or

following

Not

in

power

screwdrivers.

be

springs.

sprays, cleaners,

are

a safe them.

safety

prac-

assem-

areas

of

in

the

tag,

Form

observe

must

controls

proper

strips,

pur-

etc.

chemi-

EYES.

special-

extremely

CEMs

have

been ap-

muscles-

equip-

as

guards,

that

exposes

returning

where

table.

of

pow-

or

to

no

16.

Avoid

touchmg

checking

17. When

18.

19.

20.

21.

using

may

be

Avoid

wearing chinery. the

elbow.

Ties

must nonconductivel chains

are

Before

starting

customer Maintain

forming

Knowing An

unsafe

Use

ARTIFICIAL

moving

for

play,

etc.

stroboscope,

moving.

loose

Shirt

sleeves

be

tucked

approximately

not

recommended.

equipment,

personnel

good

housekeeping

and

after

completing

safety

act

good

will inevitably lead

judgment -eliminate

RESPIRATION

General Considerations

1.

Start

Immediately -Seconds

Do

not

move from loosen

2.

Check Remove

3.

Loosen

Take self

or

4.

Remain

After necessary.

5. Call a Have

6.

Don't Continue without

Rescue Breathing

1. Place

2.

Clear

3.

Tilt

head

Lift

jaw

4. Pinch

5.

6.

Blow Remove

7.

8.

Listen tion.

9.

Repeat Continue

Thumb finger

victim

danger.

care

someone

Do

for

of

these

help

Position

revives, be

summon

Up

without

or

not

warm

Obstructions

objects.

is

interruption

is

certainly

clothing,

Mouth

foreign

Clothing -Keep

when

in

victim

Doctor

Give

help

for

victim

on

his

throat

of

water,

back

to

open

up

to

keep

nostrils

to

prevent

until

you

see

you

r I ips

and

for

snoring

and

mouth

to

mouth

rescue

breathing

and

positions

items

mechanical

do

clothing

must

in

shirt

are

not

rules is

unless

wait

or

the

victim,

Pull Victim

after

available.

ready

medical

Adults

back

immediately.

food,

air

passage.

tongue

air

chest rise.

allow

gurglings

breathing

until

not

touch

that

may

be

left

or

have a

3 inches

make

certain

in a

hazardous

in

area

maintenance.

not

enough.

unsafe

Count

absolutely

look

for

or

tongue

Warm

victim

to

resume

aid.

until

dead.

or

foreign

out

of

air

leakage

I ungs

to

- signs

victim

Final

mouth

parts

when

ANYTHING-

be

buttoned

tie

clasp

from

fellow

of

machine

to

an

necessary help

apply

forward.

is

breathing

respiration

victim

matter.

passage.

when

empty.

of

10-20

times a minute.

breathes

mouth-to-

position

lubricatlnn,

caught

or

rolled

(preferably

end.

CEs

pOsition.

while

accident_

acts_

to

or

stop

stimulants.

by

is

breathing

you

blow.

throat

obstruc-

for

in

ma-

Tie

and

removeto

him-

if

himself.

It

above

per-

, I

'-

.....

vi

Contents

(F

..

USING THE

MAINTENANCE

THEORY

DIAGNOSTIC

MAINTENANCE

.••••..••.•....••.••.....••••••.

LIBRARY

••...•..•..••••.••.•••..•.••

AIDS

.••.••.••••••..•.••..•.••.

•..•.•••••..••

,.,

2·'

3·'

4·'

APPENDIX A

INSTALLATION

APPENDIX B GLOSSARY

INDEX

••.•.••••••...••••••.•.••••••

•••••••••••••.•••••..••••.••..

•.•..•.•••••••••.•••••.•.•..•••.•

PROCEDURES

A·'

B·'

X·,

vii

This page is intentionally

left

blank.

viii

(~

For Maintenance Library, see Section 1

Maintenance Information Manual, SY31-0550.

information on

the

content

and

layout

of

the

of

IBM

the

5110

Using

the

Maintenance Library

I

Using

the

Maintenance

Library

1-1

This page is intentionally

left

blank.

1.2

Contents

•

LOCATIONS

1005114 101

5114 Diskette 102 Diskette Drive 103 A 1 Board 104 Power 105 AC COVERS 1105114

Rear Cover Front

111

Diskette Drive Assembly . .

Removal Replacement

Diskette

Supply

Box

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

AND

Covers

Cover

....•............

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

Unit Unit

..•......•...

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

.•...........

DISKETTE

.•..............

.••.•.....•......

...........

(Front). (Rear)

DRIVE

....

.....

......

.

..

.

112 Diskette Drive Cover Assembly

Removal Replacement

113 Latch Assembly

Removal Replacement.

Collet

114

Removal

Replacement. . • . . . . . .

120 Head/Carriage Assembly .

Service Check . . . . .

Adjustment Removal Replacement

130

Head Load Solenoid and Bail.

Service Check Adjustment Removal

Replacement. . . . .

DRIVE

Belt Tracking

140

Service Check . . . . . . . . . . . . . . . . .

Adjustment.

141

Belt.

Removal Replacement •

142 Drive

Removal ReplacemenL

143 Drive Pulley

Removal Replacement

....•......

........

.....

...

. .

· . . . . . .

...

.

..

.

· . . . . . .

· . . . . . . . .

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

·

· . . . . . .

.

.......

•......

.....

....

.•.

. .

PARTS

.•..

.

• . . . . . . . . . . . . . . . . . . . .

•..

Motor

...

......

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

.

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

.........

.

.•.........

·

..........•.......

. .

.

·

..........

·

..........

.

........

.........

........

·

..........

......

.....•

......

.

· .2-2

· .2-4

· .2-6

· .2-8

.2-10 .2-11 .2-13

.2-18

.. ..

.2-22 .2-23 .2-23 .2-25 .2-25

.2-34

..

2-13 2-13 2-13 2-14 2-14 2-14 2-16 2-16 2-16

2-18 2-18 2-19 2-19 2-19 2-20 2-20

2-26 2-27 2-27 2-28 2-28 2·28 2-28 2-31 2-31 2-31 2-32 2-32

2-32

2-34

144

Idler

Assembly Removal Replacement

STEPPER

150

151

152

153

LED

160

161 162 163 164

165

CABLE,

170 171

DRIVE

Stepper Removal . • . . • . . . • • . • . . • . . •

Replacement. . . . . . . . . . . . . . . . • • . .

Pulley Clamp Removal Replacement

Drive Band . . . . . . • • . .

Service Check . . . . . . . . . .

Adjustment Removal Replacement

Stepper Drive

Removal . . . . . • . . . • . . . . • . • . • . • . . . . . . . . . 2-45

Replacement

AND

PTX

Diskette Speed

Service Check

LED

and PTX

LED

and

PTX

Amplifier

LED

Removal and Replacement

Removal . . . . . . . . . . . . . . . . • . . . . . . . . . • . . . 2-50

Replacement

PTX

Removal and Replacement Removal Replacement

SOCKET,

I/O

I nterface Cable Pin Assignments

A 1 Board Socket and Pin Assignments

DISKETTE

172

Control

Removal . . . . . . . . . . . . • . . . . . . • . . . • • . • . • .

Replacement. . . . . . . . . . . . . . . • . • • . . • . . • • . •

173 Diskette 175

Control

177

Control

POWER 180 Power

...................•.•......•...

Supply

Removal . . . . • . . . . . . . . . . . . . . . . . • • • . • . • .

Replacement. . . • . . • . . .

183 DC Voltage

..........•..••...•.•..•..

.....•.•...•.......••••...••..

......••.•.•.•.•.•.•..•.••••

PARTS.

Motor

.....•..•..•......•••.•••.•

....•...••..•..•..•••.•.•••.••.

...........•...•...••.•••...

. . . . . . • . . . . . . .

•....•......•......••.......••

...•.•.............•.....•..

Idler

......•.•..•..•.••...•.•.•••

ASSEMBLIES • . . . . • .

....•...••.....••..•••.....

Alignment

PTX

Service Checks

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

...............•..........•...

.........•....•...•.•..••.•.

AND

DRIVE

Card . . . . . . . . . . . . . . • • • . . . . . . . .

Control Card Socket and Connector Pins Card Head Cable Pins

Distribution

. . . . . . . . •

. . . . . • . . • . . . . .

..

Assembly . . • • • • • • • • . • • • . . • 2-45

.. . ..•....•

.. . ..•...•.

•. . •.•....•

.•..•...•.....•

..

. . • . . • . . . . . . . 2-42

...•...••.•

•••.•

.. . ........

..............•.•......•..

......••.••.••..•...

Service Check . . . . • • . . . • . . . . . . . 2-49

PIN ASSIGNMENTS

CONTROL

Card Test Pins

...............•••.••..•••

..•.•••...•.•...•

•.••..••.••.....

............••..

...••....••.•

CARD

..•...........

...•.•.•.••.•.••

...•.••.•.•••••••

.. . ...•••.•..••..

..•...••..••••..•.

....•.....

••.....•••••

•..••..•••.

.:

" .

2-34 2-34 2-34 2-36 2-36 2-36 2-36 2-39 2-39 2-39 2-42

2-42 2-43 2-43

2-45 2-46 2-46 2-46 2-47 2-48

2-50

2-50 2-52 2-52 2-52 2-54 2-54 2-56

2~0

2~2

2~4

2~6

2~7

2~1

2~

Maintenance Contents

2-1

Maintenance

Locations

100

D

fJ

IJ

5114 DISKETTE

Immediate Power Off Diskette

Diskette

Drive Drive

UNIT

(FRONT)

(IPO)

Switch 1 2

2-2

1111111111\11\

11111111111111111111111111111111111

,

t'

100

5114

DISKElTE

UNIT

(FRONT)

a

Power Cable Clamp

II

Immediate Power

II

Diskette Drive 1

II

Signal Cable Clamps

II

AC Box

II

Diskette Drive 2

lID

Diskette Drive 2

III

Diskette Drive 1 Fastener Knob

m

Power

Supply

Off

Fastener

(lPO)

Switch

Knob

~,

""

(

,,(

c

Locations 2-3

101

5114 DISKETTE

D I/O Interface Port

II

Rear

Cover

Fastener

II

AC

Line

Cord

II

II II

A 1 Board I/O

A 1 Board

Interface

Access

Cable

Access

UNIT

Panel

(REAR)

Screw

"/(-

'

D

EJ

1111111111111111111111111111111111'

11111111111111

2-4

1111111111111111111111111111111111111111111111111

II

I

"iIl.

.I'

(-,.,

101

II

II II

1m

m

1m

III

1m

5114 DISKETTE

Diskette Drive 2 Power Connector (J7)

DC

Power Supply

ACBox I/O

Interface Port

A1

Board

Power Connector (J6) Fan

Front

Cover

Release

UNIT

Bar

(REAR)

c'

m

Locations 2-5

1 02 DISKElTE DRIVE

o Diskette Drive Door

fJ

Latch Assembly

II

Collet

II

Timing

II

PTX

II

Head

II

Drive

II

Spindle Pulley

IJ Diskette Control Card

1m

Card Retainer

II

Belt

If)

Idler Assembly

II]

Idler Spring

1m

Diskette Drive Control Cable

1m

Drive Pulley

Pins

Load Solenoid Motor

'l,'

,,1-

"\

2-6

Rear View

1 02 DISKETTE DRIVE

1m

Spindle Pulley

ID

Stepper

1m

Stepper

lID

Capacitor

fE

LED

fII

Spindle

m Head

f!J

Bail Head Load

m Wiper

fa

Stepper

Eta

Stepper

~

Stepper

Motor Idler Assembly

(not

present

and

Carriage Assembly

Drive Band

Motor

Pulley

Motor

Pulley

on

some

Clamp

driv~s)

c

Front

View

Locations 2-7

103

A1

BOARD

Al

~~~

D

fJ

IJ

II

Socket

Location Cable or Card

A3

A1 A2 A3 A4

81,82 83 84

C1-C4 D1

D2 Unused D3

D4 Diskette Drive 1 Signal Cable

Signal Cable A 1 Power Cable Entry A2

Signal Cable Entry DC

Power Cable

VFO

Card Unused Diskette Drive 2 Signal Cable

Diskette Adapter Card A3

Signal Cable

A2

Signal Cable

I/O

Interface Port A 1 Power Connector A2

Signal Connector

A3

Signal Connector

Entry

(not

present on all machines.

Exit

see

MAP 050)

l~,.,,)

"

,

"II..

/~

"

~--;w--A2

'~.

,.'

\~..

/'

2-8

I

"

;;P'

(

103

A1

BOARD

D

CE

Probe Connector Pins

fJ

Pin Numbering

"

"~'

(

c\

o

D 0 B

·02·

• •

•

• •

•

·13-

•

• •

o

•

• •

·

,.

• •

.13·

J G

·02·

• •

•

• • Gnd

• •

·13·

P M

·02·

• •

•

• •

•

• •

•

.13.

U S +5 Vdc

·02·

~

; J

••

•

••

.13·

o

•

• •

.13

•

~

•

o

DAB

·02·'

• •

•

• •

•

·13.;

•

fJ

o

Side

of A 1

o

Board

o

Locations 2-9

104 POWER SUPPLY

o

AC

Box

fJ

Terminal Block (TB1)

II

Transformer (T1)

II

Capacitors

II

Rectifier Assemblies

II

Fuse (F1)

fJ

Capacitors (C3, C4)

II

PC

Board

(Cl,

o Capacitor (C5)

C2 - C2

(01,02)

not

present

on

some

power

supplies)

2-10

02

~~D"

tJ°

-[Qill

R4

~

.~,

,/

-,

105

AC

BOX

"'"

(

.

~

(.

D Relay

fI

II

.

II

(Rl)

Power Connector (J4)

Connector (J3)

Fuse

(F4) Line Filter Ground Line Filter

C

C~

C'

0

(2)

CD

CU

8

@

®

0 0

Locations 2-11

@ @

0

®

0

This page is intentionally

left

blank.

2-12

Covers

and

Diskette

Drive

110

"""

h,\

(

..

5114

COVERS

Rear

Cover

Safety Latch

Release

Power Supply

Bar

o

Cover

Rear

To open the rear cover

located in a slot on the hinged on the right. Opening this cover provides access

to

the A 1 board, the rear

power

supply, and the

of

the 5114, press! the latch

left

of

the cover. The cover is

of

the diskette drives, the

front

cover release bar.

1

Latch

Front

Cover

To

remove

cover and press the release bar located

5114. This allows the

from front away to

the

front

cover

of

the

5114,

front

cover

to

separate slightly

the 5114. To release the latch, located

in the middle

from

the 5114. Removing this cover allows access

front

of

the unit,

the diskette drives.

lift

it

and pull

open at

the

top

at the

rear

of

the

cover

the

top

I 1 More recent machines use a twist-lock instead of a push-latch.

Covers

and

Diskette Drive 2-13

111 DISKETTE DRIVE

Removal

ASSEMBLY

Replacement

1.

Replace the diskette drive

through 9

of

by

reversing steps 3

the removal procedure.

1.

Turn

off

the POWER switch on the 5110 and

5114

unplug the

Remove the

2.

3.

Remove the signal cable

II.

clamp

4.

Remove the

II.

clamp

5.

Loosen the diskette drive fastener knob II

6.

Carefully slide the diskette drive, the

front

of

7.

Lift

up the diskette drive and remove

5114.

8.

Unplug the signal cable

control card socket

9.

Unplug the

motor

connector

line cord.

front

cover (110).

from

power

cable

from

the 5114.

from

the diskette drive

II.

power

cable from the diskette drive

II.

the signal cable

the

power

cable

or

II

or •

toward

it

from

B.

the

CAUTION

The cable routing

diskette drive was removed because electrostatic noise.

Check the performance

2.

MAP

880.

3.

Set

the

front

of

the diskette drives cover. openings, not

Loosen the diskette drive fastener knob

4.

and slide the diskette drive

the diskette drive locator slot screws.

Loosen the diskette drive locator slot screws and

5.

position the diskette drive cover opening. Tighten the screws.

If

the diskette drives line up

go

line up

must

cover in place

to

step

6.

with

the

openings,

be the same

of

the diskette drive using

to

check the alignment

the openings in the

with

If

the diskette drives

go

to

out

to

allow access

to

fit

correctly in the

as

when the

of

the

step 4.

II

front

do

or

II

to

6. Replace the

front

cover (110).

/----,,-

~,

..

" _.J/

2-14

111

DISKETTE DRIVE ASSEMBLY

Power Cable Clamp

D

Control Card Socket

fJ

Signal Cable Clamp

II

Power Cable Connector

II

Diskette Drive 1

II

Diskette Drive 2

II

Diskette Drive 1 Fastener Knob

II

Diskette Drive 2 Fastener Knob

B

fJ

"

'

..

"'

(

II

Covers and Diskette Drive 2·15

112 DISKETTE

Removal

1.

Open the diskette drive cover assembly II.

DRIVE

COVER

ASSEMBLY

Replacement

1.

Align the diskette drive cover the mounting holes in

two

the

II

pivot screws

is installed.)

assembly"

the

casting. Then reinstall

B.

(Ensure

that

with

the spring

2.

Disconnect the spring

3.

Loosen the

While

4.

5.

holding the cover assembly, remove

pivot screws.

Lift

the cover

two

pivot screws

from

II

from

the cover.

II

with

the diskette drive.

a wrench.

the

2.

Tighten the pivot screws

3.

Connect the spring

4.

Close the diskette drive cover assembly.

II

with

to

the cover.

a wrench.

2-16

112 DISKETTE DRIVE COVER ASSEMBLY

D Cover

fJ

Spring

II

Pivot

Screw

II

Mounting

II

Diskette

II

Head Cable

II

Diskette

II

Card

"',.

'\

(

~

..

/

Screws

Drive

Control

Retainer

Door

Card

c

Diskette Drive Cover Assembly 2-17

113 LATCH ASSEMBLY

Removal

1.

Open the diskette drive cover assembly.

2.

Remove the

3.

Carefully remove the latch by pulling the latch toward the rear assembly. Do

Replacement

1.

Place the latch position the

2.

Reinstall the

3.

Close the diskette drive cover assembly.

two

latch mounting screws

II

not

lose the spring II.

II

in the cover assembly. Then

two

pivots. Reinstall the spring II.

two

latch mounting screws

and the

of

B.

two

pivots

the cover

B.

,

II)

l I

I I

I ·

'~I,."

)'

2-18

i~

114 COLLET

Replacement

(

Removal

Remove the diskette drive cover assembly (112).

1.

2.

Remove the mounting screw

3. Remove the collet assembly

parts on the collet assembly shaft.

4. Remove the clip

5. Inspect all parts

needed.

II

and the collet.

for

wear

II

along

and install

with

new

the

parts

as

1.

Reinstall the collet and the clip II.

2.

Reinstall the remaining parts on the collet assembly

3. Reinstall the collet assembly

screw

4. Reinstall the diskette drive cover assembly (112).

II.

shaft

in the order shown.

II

and the mounting

D Mounting Screw

II

Collet Assembly

II

Clip

II

Timing

Pins

c

Tubing

Shim

Collet

c

Covers and Diskette Drive 2-19

120

CAUTION

The head / carriage assembly the factory.

attempt assembly. The If assembly.

Service Check

The drive band adjustment service check is performed (152).

When

the diskette drive must same position as when installed be wrong.

1.

HEAD/CARRIAGE (Page 1

to

this block is loose, replace

you perform the head /

Prepare

a.

Turn

b. Remove the

of

5)

Adjust

this assembly only as a unit. Do

repair

or

adjust any internal part

timing

block is

be

in approximately the

for

the service check as

off

the IPO switch.

5114

covers (110).

DANGER

Voltage is present

power

cable is disconnected and the IPO

switch is on.

ASSEMBLY

was

not

the

must

ca

at

adjusted and tested at

of

the

adjustable in the field.

diskette drive

be

correct before this

rriage service check,

or

the indications can

follows:

the socket

when

the

not

Steps 3, torque required by the stepper check in step 6.

indications in step 6

3.

4.

4,

and 5 are required

If

these steps are

will

Ensure 40 a.

b.

c.

d. Insert a timing pin

e.

f. Remove

Electrically move the head/carriage assembly

track

a.

b.

that

the

head / carriage assembly is

as

follows:

Turn

the

stepper

slot in

the

casting and the timing hole in the stepper Turn on the IPO switch.

CAUTION

The PTX, LED, the incorrect

Install a access 0).

diskette drive cover.)

The

stepper slot in

Remove

0) and install

head / carriage assembly should move one track. Check and the

Note: The field. drive assembly.

timing

39

motor

pulley are aligned II.

test

jumper

motor

pulley timing hole into the

the

casting.

the

timing pin.

as

follows:

the

jumper

it

for

no gap between the

timing

If

this

blClck

to

set up

motor

not

be unreliable.

motor

by hand until

or

drive card can be damaged

pins are jumped.

from

G (ground)

II. (The pins are in

must

pass freely through the

end

from.

on •

(MC-3).

block II.

block is

is loose, replace the diskette

not

the

correct

before making the

performed, the

at

track

the

timing

to.

(-align

the

timing

to

(-align

The

timing

adjustable in

access

pointer

the

if

c.

Remove the diskette drive assembly (111). (Disconnect cable,

d. Remove diskette adapter card A1C1 (103). e.

Remove the diskette drive cover (112).

f. Remove

2.

Check

the

seated correctly in

2-2C

the

drive assembly

but

leave the signal cable connected.)

the

wiper

assembly II.

guide rods

to

ensure

the

guide slots II.

motor

that

power

they are

Electrically move the head/carriage assembly

5.

track

40

as

follows:

a.

Remove the install

b.

Visually check stepper the

casting are aligned. Do

pin.

it

on •

motor

jumper

end

(-align

that

the timing hole in

pulley

II

from.

access 0).

and the

not

(MC-3)

timing

use a timing

and

the

slot in

to

120

6.

Verify correct as

HEAD/CARRIAGE (Page 2

that

of

5)

the

0.020

follows:

ASSEMBLY

inch (0.508 mm) gap III is

8.

Return a. b.

c.

d. Reinstall

the

5114

Remove the jumper.

Turn

off

the IPO switch.

Reinstall the

the

to

operational status as

wiper

assembly II-

cover assembly.

follows:

Visually check

not

does inserted between the timing block and the timing pointer.

thickness gauge is inserted.

•

Note: Due

motor, the above step can be performed only

If

once.

go

again,

7.

If

the gap III in step 6 is

with

step 1

gap

II

of

the service check.

Note:

If perform the Head Load Solenoid and Bail Service Check (130).

that

the head / carriage assembly

move when a 0.0195 thickness gauge is

but

moves slightly

to

the torque required by the stepper

it

is necessary

back

to

step 4.

of

the adjustment procedure.

in step 6 is correct, continue

the head/carriage assembly

when

a 0.021

to

check this clearance

not

correct, continue

If

with

step 8

was

replaced,

Diskette Control Card

the

CAUTION

The cable routing the

diskette drive

electrostatic noise.

e.

Connect the drive f. Reinstall adapter card A 1 C1. g. Reinstall the diskette drive in

h. Turn on the IPO switch.

must

be the same as

was

removed because

motor

power

the

when

of

cable.

5114.

c

Head

Connector

Pins

00000000000000

HCP

~

__

1_~

__

14

__

0_g

__ g ____

g_0_0

__

~~

__________________

16

o

14000

D

000

00

0

8528195

TPA-6

0~~ii-l

or

4178068 TPA-1

Test Header

Covers and Diskette Drive 2-21

Pins

120

HEAD/CARRIAGE (Page 3

of

5)

ASSEMBLY

Perform the adjustment

4.

a.

Insert a 0.019 thickness gauge between

timing pointer and the timing block II.

as

follows:

the

Adjustment

Perform the service check prior

adjustment procedure.

1.

Prepare a. b.

c.

d.

e.

Align the electrically locked stepper

2.

stepper pulley a.

b. Insert a timing pin

c.

d. Tighten the clamp e.

f. Remove g. Loosen the

for

the adjustment

Turn

off

the

IPO switch. Set the diskette drive in a vertical position allow access

Measure and record the gap

stepper

Loosen the clamp screw II

stepper

Turn on the.IPO switch.

Install a jumper

access 0).

to

the drive band screws.

motor

pulley and the casting.

motor

shaft

to

as

follows:

from

II. (The pins are in the

diskette drive cover.) Adjust the gap pulley and the casting

recorded in step

The timing pin must pass freely through the stepper

slot in the casting II.

motor

the

timing

two

II

between the stepper

1. screw

pulley

pin II.

band clamping screws II.

to

performing the

as

follows:

II

between the

to

allow the

turn inside the pulley.

motor

G (ground)

to

the same size

to

.,

II.

timing

hole into

the

to

with

(-align

motor

as

timing

the

Note: The 0.019 thickness gauge provides the required 0.020 inch (0.508 mm) gap when the diskette drive is returned position.

b.

Lightly press the gauge in place.

c.

Ensure

d. Tighten the band clamping screws

5.

Perform the service check.

Check the performance

6.

MAP

Diskette Control

14

10

0 0 0 0 0 0 0 0 0 0 0 0 0 I

16

o

14000

that

880.

Card

HCP

00

top

of

the

drive band is straight.

of

TPB-10

to

its operational

the carriage

to

hold the

II.

the diskette drive using

TPA-6

00

0 0

000

o7~

This step electrically locks the motor at track

3.

and then at track torque is set up band. a.

Remove the jumper end

0) and install

b.

Remove the jumper end

reinstall

c.

Visually check stepper the casting are aligned. Do not use a timing pin.

Note:

pulley

2-22

Be

sure

and

the side frame.

it

on

motor

there

40

to

ensure that the proper

for

the adjustment

from.,

it

on G (MC-3).

from 0 (MC-3)

.,

(-align access 0).

that

the

timing hole in the

pulley

II

and the timing slot in

is

running clearance between the

39

of

the drive

(-align access

and

16

o

14000

D

000

00 0

8528195 or 4178068 TPA-1

".

/

120

Removal

1.

2.

HEAD/CARRIAGE (Page 4

Turn

Remove the 5114 covers (110).

of

5)

off

the IPO switch.

ASSEMBLY

Replacement

CAUTION

When installing the head/carriage assembly,

that

ensure carriage arm. Ensure

is properly installed. Place a strip between the heads.

the bail

Dis

under the tab

that

the bail return spring

II

of

clean paper

of

the

II

c

3. Remove the diskette drive

4. Remove the diskette drive cover assembly (112).

5.

Remove the

6. Carefully remove the head cable drive control card (172). (Remember the cable

for

path

7.

Place the diskette drive in a vertical position and remove the clamp.

8. Place the diskette drive in a horizontal position. Place the head/carriage assembly at the lower

limit (track 00).

9. Loosen the screw Remove the guide rod

10. Carefully to

remove

wiper

assembly II.

the replacement procedure.)

two

band clamping screws

II

lift

and turn the head/carriage assembly

it

from

the upper guide rod II.

from

the 5114 (111).

from

the diskette

II

and the

holding the lower guide rod.

III.

1.

Carefully install the head / carriage assembly in the guide rod at the lower

2.

Reinstall the guide rod

III.

Place the head / carrriage assembly

limit

(track 00).

III

and tighten the screw

II·

Note: Ensure

aligned Access errors occur correct.

3.

Reinstall the clamp and

not tighten these

4. Carefully place and connect the head cable diskette drive control card (172).

5.

Remove the

that

the guide rod notch

with

the screw and is seated as

if

this adjustment is

two

screws yet.)

Cl

adapter card.

II

shown

not

band screws II. (Do

is

to

IEJ.

the

c

6.

Turn on the IPO switch.

7.

Install a jumper access 0).

8.

Insert a timing pin through the hole in pulley into the hole in the side frame.

9. The timing pin If

it

does not, loosen the

from.

must

(ground)

pass freely through the holes.

motor

to " (-align

pully clamp

II and align the holes. Then tighten the

pulley clamp screws but make sure there is clearance between the pulley and the side casting.

Go

to

10.

Head/Carriage Assembly 120, step

adjustment section.

Covers and Diskette Drive 2-23

the

motor

screw

motor

2f

of

the

120

HEAD/CARRIAG

(Page 5

of

5) E

ASSEMBLY

D

EW

Band Clamping S

U S crews

~

tepper

Motor

Pulley

l1:li CiampI' S

II

II II

ng

Pulley Gap Timing Pin Tab

crew

fJ Bail

Bail Return

II

IN

U Lower G .

1m

m

=

rr.I

IliiU

1m

m Thickness G

rr.t

IIi.I Guide Rod S .

rr:t . eatl

~

.

GUide Guide Rod

H~ad

Wiper Assembly

pper Guide Rod

Bail

Tab

Timing

Sp

.

ring

Ulde

Rod Screw

Rod N

otch

Carriage Assembly

auge

ng

BI

ock Gap 0.020 in

. (0.508 mm)

2-24

Correct

Incorrect

'''''',''

,/

C

130 HEAD LOAD SOLENOID

Service

Prepare

1.

a.

b.

c.

d. Remove e.

(Page 1

Check

Turn Remove Remove (Disconnect leave

Remove

of

3)

for

the

service check as

off

the I PO the the

the

signal cable connected.)

diskette the

DANGER

Voltage is present power

cable is disconnected and

switch

is on.

switch. 5114covers (110). diskette drive assembly (111).

the

drive

adapter card

diskette drive cover (112).

motor

at

the

AND

follows:

power

A1Cl

socket

BAIL

cable

when

the I PO

(103).

but

the

c.

Install a (ground)

Diskette Control Card

14

\00

0 0 0 0 0 0 0 0 0 0 0 0 I

jumper

to

DANGER

The solenoid case becomes continuous use.

HCP

from 0 (-head

activate

the

TPB-l0

load)

to

•

head load solenoid.

hot

after

TPA-6

c

l

2.

f.

Turn power

Check a.

Insert a clean strip read /

b.

Check

_....-

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

Lc~t;-l-lb:!lLI

R/W

Heads

CAUTION

The PTX, LED, the

on the IPO switch.

is

turned on.

the

bail and carriage arm gap as

write

heads

for

tension on the head load spring.

-+-+

F=I

150.4

0.015 ± 0.005 inch

or

incorrect

test

Verify

of

paper between

II.

I

c.-:i

~

± 0.13 mm)

drive card can be damaged

pins are jumped.

that

Solenoid

Plunger

0+--.

Ba

II

system

follows:

the

i I Assembly

16

o

00

0

1400

16

o

d. Verify a

e.

3.

Check

if

follows:

a.

b. Remove

c.

d.

D

000

14000

II

between the bail and the carriage arm full length If

the

not

correct,

procedure.

the

Remove

read/write Visually check inch (about 3 mm) between the head surfaces (This If

the not correct, procedure.

00 0

0.015 ± 0.005

of

carriage travel (tracks

gap is correct,

go

gap between

the

jumper.

the

strip

heads.

for a gap

gap

cannot

gap is correct,

go

to

00

0 0

000

8528195

inch (0.4 ±

go

to

step 1

the

of

paper

of

be

measured.)

go

to

step 2

of

Covers and Diskette Drive 2-25

or

4178068 TPA-l

0.13

step 3.

of

the

head surfaces as

from

approximately 1/8

step 4.

the

If

adjustment

between

If

adjustment

00

oT7~

mm)

gap

tab

for

to

76).

the

gap is

the

II

.

the

gap

is

130 HEAD LOAD SOLENOID

(Page 2

of

3)

AND

BAIL

Return the 5114

4.

a.

Turn

off

b.

Reinstall the diskette drive cover (112).

CAUTION

The cable routing must be the same the diskette drive was removed because electrostatic noise.

c.

Connect the drive d. Reinstall diskette adapter card A 1 e.

Reinstall the diskette drive in the 5114.

f. Turn on the IPO switch.

Adjustment

Perform the service check before performing the

adjustment procedure.

to

operational status

the IPO switch.

motor

as

power cable.

C1.

follows:

when

of

the

1.

Adjust the bail and carriage arm gap as follows: a.

Loosen the solenoid locking screw

b.

Turn the solenoid in the casting

0.005 inch (0.4 bail

II

and

rotation

c.

Tighten the solenoid locking screw

d. Remove the jumper installed in step 2

service check.

e.

Reinstall the diskette drive cover assembly.

f.

If If step 3

2. Adjust the gap between the heads

Turn the bail stop screw

heads just touch; then turn the screw

counterclockwise one· turn.

3.

Perform the service check.

of

the head gap is the head gap is

of

:!:

0.13 mm) gap

the carriage arm tab

the solenoid

the service check.

decreases

to

be adjusted,

not

to

II

for

II

•.

be adjusted,

as

clockwise until the

•. a 0.015

between the

(A

clockwise

the gap.)

•.

of

go

to

go

follows:

the

step

to

:!:

fJ Bail

II

Bail Mounting Screw

II

Bail Return Spring

o Carriage

Arm

Tab

III Solenoid Locking Screw

Carriage Assembly

2.

Heads

R/W

DScrew

II

Read/Write

II

Bail Stop Screw

Head

Cover Assembly

Gap

Solenoid

Plunger

2·26

(

130

Removal

1.

2.

3.

4.

HEAD

LOAD

SOLENOID

(Page 3

Turn

Remove the

Remove the diskette drive

Remove diskette adapter card A 1 C 1 (103).

of

3)

off

the IPO switch.

5114

covers (110).

from

AND

the

BAIL

5114

(111).

5. Remove the solenoid leads terminal block the replacement procedure.) block, remove the

6. Remove the bail return spring

7.

Remove the mounting screw B and the bail

(This pulls the solenoid plunger solenoid. Be careful surface

8.

Remove the plunger

9.

Loosen the solenoid locking screw

the head load solenoid counterclockwise.

II. (Remember the cable path

leads

of

the plunger.)

II

from

If

there

from

the

II.

not

to

damage the plated

from

the bail.

by

turning

the taper pin

is

no terminal

A2

connector.

out

of

the

II

and remove

it

for

IJ.

1m

Taper Pin Terminal Block

m Solenoid

Leads

o 0 White III

o Solenoid

_~or\:hite

L----tt-'1~60~n~~

Black Yellow

This illustrates machines Machines terminal

Replacement

with

block

EC or

without

836576

associated components.

will

not

EC

have

836576.

this

v'

C

C;

C~I

~

1.

Install

the

solenoid, turning

clockwise into the casting.

2.

3.

4.

5.

6.

the

careful

the

plunger

carriage arm.

(see

Install

While inserting the plunger into the solenoid, reinstall

(Be the plunger.) Ensure ..

of

Reinstall the bail return spring

Carefully place and connect the solenoid III leads

to

the taper pin terminal block

connector

Perform the service check.

to

bail

II

and the

not

to

damage the plated surface on

logic 440).

it

about

four

the bail.

mountin~

that

the bail is under

II.

II

or

the

Covers and Diskette Drive 2-27

turns

screw II.

the tab

A2

AC

Drive Parts

140 BELT TRACKING

(Page 1 of

2)

Service

1.

2.

Adjustment

1.

2. Loosen

3. Slide

4.

Check

With

power

on, check

centered on

If

the drive

Turn

off

pulley setscrew

in

or

..

and

turned counterclockwise.

Tighten the idler locking screw

pulley setscrew setscrew is aligned shaft.

the

belt

is

the IPO switch.

the

idler locking screw

II.

the

idler assembly

out

so

the

drive pulley

II.

hub pulley and the drive pulley.

belt is centered on the hub pulley

that

the drive belt is

not

centered, adjust

II

and the drive pulley

when

Ensure

to

that

the

flat surface

the

II

and the drive

the

drive pulley is

II

and the drive

the drive pulley

of

the

belt.

II

motor

5.

Turn on the IPO switch.

6. Perform the belt tracking service check.

2-28

140

"',':"

(

,"

BELT TRACKING

2)

of

2

(Page

Hub

Pulley

Crown

Motor

Drive

D

Drive Pulley Setscrew

fJ

Drive Pulley

II

Spindle Pulley

II

Idler Locking Screw

II

Idler Assembly

D

Shaft

Flat

Surface

c·

Drive

Bracket

and

Motor

ASOO:IY

~

Crown

c

AC Drive Parts 2-29

This page

is

intentionally left blank.

2-30

.'

___

.-f/

·".

C

141

Removal

1.

2. Release the idler tension by hand and remove the

Replacement

',.

1.

2.

3.

BELT

Turn

off

the IPO switch.

drive belt.

Install the drive belt. Ensure

as

positioned

Turn on the IPO switch.

Perform the

shown II.

belt

tracking service check (140).

that

the idler is

C'

C',

Hub

Crown

~

Crown

~

c'

AC

Drive Parts 2-31

142

Removal

DRIVE

(Page 1 of

MOTOR

2)

Replacement

1.

Reinstall the drive pulley Ensure

surface

that

of

the

II

onto the

the

setscrew II is aligned

motor

shaft II.

new

to

motor.

the

flat

1.

Turn

off

the IPO switch.

2.

Disconnect the drive

3. Remove the diskette drive cover assembly (112).

4. Remove the drive belt

DANGER

The

motor

case becomes hot after continuous

use.

5.

Remove the

II

and remove the drive motor and the bracket

an

assembly.

6.

Loosen the setscrew

pulley.

two

motor

power cable II.

II

(141).

motor

bracket mounting screws

II; then remove the drive

as

DANGER

(60

Hz

motors): To prevent personal injury, ensure case are positioned up and under the bracket.

2.

Install the drive

the

3.

Reinstall the diskette drive cover assembly (112).

4.

Connect the drive

5.

Replace the drive belt (141).

two

that

screws

the

motor

II.

two

large holes

and bracket assembly and

motor

power cable II.

II

in the

motor

6. Perform the drive belt tracking service check (140).

2-32

('

..

\

I.,.

(

CO"'

142 DRIVE MOTOR

(Page 2 of

D

Drive

Motor Power Cable

D Large Vent Hole

II

Motor Shaft Flat Surface

II

Drive

Pulley Setscrew

II

Drive

Pulley

II

Motor Bracket Mounting Screws

IJ

Drive

Belt

Drive

Motor and

Bracket Assembly

2)

c

C':I

AC

Drive Parts 2-33

143 DRIVE PULLEY

I 144

IDLER

ASSEMBLY

Removal

1. Turn

2.

3.

Replacement

1. Install

off

the IPO switch.

Remove

Loosen the setscrew II; then remove the drive

pulley

the setscrew

the

II.

the

drive pulley

drive belt

II

aligned

11(141).

II

on the

to

the

motor

flat

II·

2.

Replace

3. Perform

Drive

Motor

Bracket Assembly

the

drive belt (141).

the

drive belt tracking service check (140).

and

shaft

surface

of

with

shaft

Removal

1.

Turn

off

the I PO

2.

Remove the drive belt

3. Remove the idler spring

4. Remove assembly

Replacement

1.

Install

the

B.

the

switch.

locking screw

idler assembly II and the locking screw

II

2.

Reinstall

3. Replace

4. Perform

the

idler spring

the

d rive belt (141).

the

drive belt tracking service check (140).

II

(141).

II.

II

and

the

idler

2-34

I

~

(:

c

This

page

is

intentionally

left

blank

o

.

.---------

AC Drive Parts 2-35

Stepper

Drive

Parts

Replacement

150

Removal

1.

2.

3.

4. Remove the card retainers and the diskette drive

STEPPER (Page 1

Turn

off

Remove

Disconnect the head cable from the diskette drive

control card (172).

control card

5. Disconnect the cable

6.

Remove

covers.

7.

Remove the

cable connector

III

tabs

8. Remove the

9.

Loosen the the idler assembly up against the spring tension; then tighten the screws.

CAUTION While

performing

not

to

MOTOR

of

3)

the IPO switch.

the

diskette drive cover assembly (112).

II

from

position

the

two

screws

fiv~

stepper

by

with

a small screwdriver

wiper

two

idler mounting screws

damage the drive band.

II

and the

motor

leads

pushing down on the terminal

III.

assembly

the

II.

following steps, be careful

A211.

two

II

II.

connector

from

the

Push

1.

Install the stepper screws diskette drive control card.)

2.

Insert the five stepper cable connector. Ensure that the locking tabs on the terminals lock in the connector slots.

3.

Reinstall the connector covers and

4.

Connect the cable

5.

Reinstall

clamp screw turn touch the side frame.

II.

the

inside the pulley.)

6. Carefully reinstall the drive band ends on

pulley pin

(with

motor) and the screw

screw.)

7.

Loosen the

spring tension position the idler.

as

the

notch facing away

motor

using the three mounting

(Position the

stepper

II

loose so

shown. Reinstall the band clamp

two

mounting screws

to

position

motor

II.

motor

cable

motor

leads

111

two

A2

II.

pulley. (Keep

that

the

motor

Be

sure

the pulley does

from

the stepper

(Do not tighten the

II

toward

into the

screws

the

shaft can

the

and let

the

III

II.

not

the

8. Tighten the mounting screw and center the drive

II.

band on the idler pulley

bracket is parallel

to

the casting.

Ensure

9. Reinstall the diskette drive control card

10. Reinstall the head cable on the diskette drive control card (172).

that

the

II.

'"

"t_J

'.0

",It

10.

Remove the clamp screw

11. Carefully remove the drive band ends

12.

Measure and record the

stepper

measurement will be used in the replacement

procedure.

13.

Loosen the clamp screw

stepper

14. Remove the three stepper

II

2-36

motor

pulley and the casting. This

motor

pulley.

then remove the motor.

II

and the band clamp.

gap"

between the

D then remove the

motor

mounting screws

from

the

11. Turn the stepper timing slot in the casting and the timing hole in the stepper timing pin

12. Disconnect the drive

DANGER

I pulley pin.

Voltage is present power

cable is disconnected and

Remove diskette adapter card A 1 C 1 (103).

13.

motor

II.

motor

pulley by hand until

pulley are aligned, and insert a

motor

power

cable.

at

the socket

when

power

the

is on.

the

''<lIIo

,/

,<"

o,t

...

"

"-

j'

150 STEPPER

(Page 2 of

14. Turn on the IPO switch.

CAUTION

The PTX, the incorrect

""

"",

(

15. Install a jumper access 0).

16. Make

the

casting

recorded in the removal procedure, step 12.

MOTOR

3)

LED,

or

drive card can be damaged

test

pins are jumped.

from

0 (ground)

gap"

the

between the pulley and the

same size as the gap

to

that

TH

P11

was

if

(-align

18. Remove the timing pin

Remove the jumper.

19.

20. Tighten the band clamp screw the

drive band is straight and the tension is

present.)

21. Turn

22.

23.

the

stepper

if

the drive band is centered on the idler pulley

in all

of

the

head/carriage

00

to

76).

If

the drive band is not centered

not

present, adjust the drive band (152); start

step 4.

If

the drive band is centered, perform the

head/carriage check (120); start

II.

B.

motor

pulley by hand and check

assembly travel (tracks

or

with

(Ensure

the tension is

that

with

step 3.

II

C

•

CI

17. Tighten the clamp screw

II.

Diskette Control Card

14

100

0 0 0 0 0 0 0 0 0 0 0 0 I

HCP

16

0

14000

00

0000 0

00

0

8528195 or 4178068

TPA-6

TPB-1

oj~

TPA-1

o

16

o

D

000

14000

000

0 0

00

Stepper

Drive Parts 2-37

150 STEPPER

(Page 3

MOTOR

of

3)

D Pulley

fJ

II

1:1

II

and

Casting Gap Band Clamp Screw Pulley Clamp Screw

Timing Pin Stepper

Idler Assembly Mounting Screw

Motor Mounting Screw

fJ Idler Pulley

B Wiper Assembly

m Diskette Drive Control Card

Em

Position A2

m Removal

1m

Connector

III

Stepper

ED

Terminal

of

Leads

Cover Screws

Motor Leads

Tab

2-38

/

i

,-

151

Removal

1.

(~

2.

3.

4.

",

C

5.

PULLEY

(Page 1

Turn

Remove the diskette drive cover assembly (112).

Remove the

Disconnect the head cable from the diskette drive

control card (172).

Remove the card retainers and the diskette drive

control card

CLAMP

of

3)

off

the IPO switch.

wiper

II

assembly

(172).

II.

Replacement

1.

Reinstall the pulley, the clamp, and the clamp screw

II.

(Keep the screw loose so

can

turn

motor shaft the pulley

2.

Carefully reinstall the drive band ends on the pulley pin. Then reinstall the band clamp notch facing away from the stepper motor) and the screw

3.

Loosen the the spring tension put the idler the idler mounting bracket and tighten the mounting screws parallel

does

II.

two

to

the frame.

inside the pulley.)

not

touch the

(Do not tighten the

idler mounting screws II and let

II.

side

frame.

in

position. Hold

Ensure that the bracket is

that

the

Be

sure

,with

screw.).

the

two

Loosen the

6.

the idler assembly uP' against the spring tension; then tighten the screws.

CAUTION

While performing the following steps, be careful not

to

damage the drive band.

7.

Remove the clamp screw from the pulley.

Carefully remove the drive band ends from the

8.

pulley pin.

Measure and record the gap

9.

stepper motor pulley and the casting. This measurement will be used in the replacement procedure.

Loosen the clamp screw

10. pulley and the clamp.

idler mounting screws

II

and the band clamp

..

between the

II;

then remove the

II.

Push

4. Turn the stepper

to

center the drive band on the idler pulley

5. Reinstall the diskette drive control card and the

card retainers

6. Reinstall the head cable on the diskette drive

control card (172).

Turn the stepper motor pulley by hand until the

7.

timing slot in the casting and the timing hole in the stepper motor pulley are aligned. Insert a timing pin

8. Disconnect the drive motor power cable.

DANGER

Voltage is present at the socket when the

power cable is disconnected and the I is on.

9.

Remove diskette adapter card A 1

II.

II

motor

pulley by hand a

(172).

C1.

few

PO

II.

switch

times

10. Turn on the IPO switch.

CAUTION

The

PTX,

LED,

or drive card

the incorrect test pins are jumpered.

can

be damaged

Stepper Drive Parts 2-39

if

151

11. Install a

12.

PULLEY

(Page 2

access 0).

Make

casting the same as the removal procedure step

jumper

the

CLAMP

of

gap"

3)

from

G (ground)

between the pulley and

the

gap

that

9.

to.

was

(-align

the

recorded in

Diskette Control Card

14

100

0 0 0 0 0 0 0 0 0 0 0 0 I

HCP

TPB-l

13.

Tighten the clamp

14.

Remove

15. Remove

16. Tighten

the drive band is straight.)

17. Turn the stepper

that

II

(tracks

18.

If band procedure.

19.

If head / carriage service check (120); start step 3.

the

the drive band is centered on the idler pulley

in all

of

00

to

the drive band is

(152); start

the drive band is centered, perform

screw

II.

timing

pin II.

jumper.

band clamp screw II. (Ensure

motor

pulley by hand and check

the

head / carriage assembly travel

76).

not

centered, adjust

with

step 4

the

of

the adjustment

the

with

that

drive

16

o

16

o

140

00 00

D

000

14000

0000

o 0

000 0 0

00

8528195

or

4178068

oj~

TPA-l

~"

)'

2-40

(

151

PULLEY (Page 3

CLAMP

of

3)

D Pulley

II II

II

,_n.

/

Didier

II

o

1m

II

1m

II]

iII Terminal

and

Band

Clamp

Pulley

Clamp

Timing Pin

Stepper

Idler Pulley

Wiper

Diskette

Position

Removal Connector Stepper

Motor

Assembly

Drive

A2

of

Motor

Casting

Screw

Leads

Cover

Tab

Gap

Mounting

Control

Screws

Leads

Screw

Card

•

c

Band

~/C/

~

Clamp

Pulley

Stepper

Drive Parts

2-41

152 DRIVE BAND

(Page 1

Service

1. Turn

2.

3. Remove the

Check

Remove the diskette drive cover assembly (112).

of

3)

off

the IPO switch.

wiper

assembly

II.

7.

Place the head/carriage assembly

of

middle

8.

Remove the ciampa·

9.

Loosen the

the spring tension

the idler mounting bracket and tighten the mounting screws. Ensure bracket is parallel

its travel (track 40).

two

band clamp screws II and the

two

idler mounting screws

put

the idler in position. Hold

that

to

the frame.

to

about the

II

and let

the idler mounting

4. Check

5.

6.

7.

8. Reinstall the diskette drive cover assembly (112).

Adjustment

1.

2.

for

tension on the drive band.

Turn the stepper that the drive band is centered on idler pulley in

all

of

the head / carriage assembly travel (tracks

00

to

76).

If

the drive band is band adjustment; start band is centered, go

Reinstall the

Turn

off

the IPO switch.

Disconnect the drive

motor

wiper

pulley by hand and check

not

centered, perform the drive

with

to

step

assembly

motor

step 4.

6.

II.

power cable (111).

If

the drive

II

DANGER

Voltage is present at the socket when the

power

cable is disconnected and the IPO switch

is on.

10. Turn the stepper to

center the drive band on the idler

11. Place the head/carriage assembly

40. Ensure

centered (left

the carriage pad

12. Repeat step 10

at track 76 and track

13.

If

the mounting slots are

steps 13a through 13c.

centered, go a.

Loosen the clamp screw

b.

Loosen the band clamp screw

c.

Position the stepper mounting slots and tighten the clamp screws

andEl·

14. Place the head/carriage assembly middle

15. Reinstall the clamp

II.

16. Move the head / carriage assembly track· 76 and check

(Do

of

not

motor

pulley by hand a

that

the band mounting slots are

to

right) over the mounting holes on

g.

with

the head / carriage assembly

00.

not

centered, perform

If

the mounting slots are

to

step 14.

II.

motor

pulley

its travel (track 40).

II

tighten.)

for

and the

binds.

two

few

roller

II.

to

about track

II.

to

center the

to

about

the

clamp screws

from

track

times

II

00

to

•

Remove the diskette drive cover assembly (112).

3.

4.

Remove the

5.

Disconnect the head cable from the diskette drive

control card (172).

6. Remove the card retainers and the diskette drive control card (172).

2-42

wiper

assembly II.

17. Reinstall the diskette drive control card and the card retainers (172). "

18. Connect the head cable control card (172).

19. Remove diskette adapter card perform the head/carriage adjustment (120); start with

step 3.

to

the diskette drive

A1C1

(103) and

.'",.

152 DRIVE

(Page 2

Removal

BAND

of

3)

Replacement

1. Place the drive band around the idler assembly II.

2.

Install the drive band ends on

the

pulley pin.

(

.

C

C~'

./

1. Turn

2.

3. Remove the

4. Disconnect the head cable

5. Remove the card retainers and the diskette drive

6.

7.

8.

9. Remove the clamp

off

the IPO switch.

Remove the diskette drive cover assembly (112) .

wiper

assembly II.

from

the diskette drive

control card (172).

Loosen the the idler assembly against the spring tension and tighten the mounting screws.

Place the head / carriage assembly

middle

Remove the

clamp at

the

two

idler mounting screws II. Push

to

about the

of

its travel (track 40).

two

band clamp screws

II

and the

II. Then place the head/carriage assembly

lower

limit

(track 00) .

screw

II

and

the

clamp.

3. Reinstall the band clamp (with the notch facing from

away screw

4. Adjust the drive band (152); start

the stepper motor) and

II. (Ensure

that

the

drive band is straight.)

the

with

clamp

step 8.

c

10. Remove the drive band ends then remove the band.

from

the pulley pin;

Stepper

Drive Parts 2-43

152

DRIVE BAND (Page 3 of 3)

Mounting

Carriage

D

Band Clamp

fJ

Pulley Clamp

II

Wiper

a

Band

II

Band Clamp Screws

II

Idler Assembly Mounting Screws

D

Idler Roller

B

Pad

Assembly

Clamp

Holes

~

~BandClamp

\

~PUlley

~lIeYClamp

~

,~

II

Drive

Band

2-44

153 STEPPER DRIVE IDLER

Removal

1.

Remove the drive band (152).

2.

Loosen the

3. Remove the idler spring II.

4.

Remove the m,ounting assembly

Replacement

two

mounting screws

II.

screws.

ASSEMBLY

fJ

II.

and the idler

C

1. Reinstall the idler assembly mounting screws

2.

Replace the idler spring II.

3. Push the idler assembly up against tension; then tighten

4. Replace the drive band (152).

•.

the

'

/

II

and the

(Do

not

tighten the screws.)

mounting screws.

the

two

spring

II

Idler Spring

II Idler Mounting Screws

II

Idler Assembly

c~·

Stepper Drive Parts 2-45

LED

And

PTX

Assemblies

160 DISKETTE SPEED

Remove the jumper.

5.

Remove the diskette.

6.

Service

1.

2.

3. Use a Tektronix 453, 454,

Check

Insert a diskette. (Ensure that the diskette drive cover assembly is closed.)

CAUTION

The PTX, the incorrect

Install a (ground)

with follows:

Switch

Channel A sweep mode

Channel

LED,

or drive card

test

pins are jurnpered.

jumper

to

xl0

from.

activate the head load solenoid.

probes and set up

A level

A coupling

(-head load)

or

can

be damaged

a similar oscilloscope

an

oscilloscope as

Setting

Normal

+

DC

to

e

if

Diskette Control Card

16

o

V~,

~.:~

140

~

00

Diskette 1

..

8528195 or

4178068

TPB-l

oj~

TPA-l

width

+

Internal

Normal

Channell

1.0 V

DC

20

of

e.

Channel

Trigger

Mode

Channell

Channel 1 input

Times per division

Connect the channel 1

probe

4.

Observe an index pulse occurring every 166.7 ± 4.2 ms amplitude should be between 2.4 and 4.2 Vdc

2-46

A slope

A source

volts/division

to

0 (+index)

/crn

ms/cm

1.5

to

Pulse

3.0

ms

0

G.

Voltage~~

~:

~

Diskette 2

I~--+---+----I~~

e

L~

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

~

161

Alignment

LED

AND

PTX

ALIGNMENT

1. Turn

Remove

(/

•

('''~~'

,.-

2 .

3.

Loosen

Place

4.

stop mounting screw.

Loosen

5.

6.

Insert

PTX assembly and screws. The drive cover assembly (112).

7. Remove

8. Reinstall

Turn on

9.

off

the

diskette

the

PTX

the

PTX assembly

II

(away

the

two

timing

the

timing

the

the I PO

IPO switch.

drive cover assembly (112).

mounting

from

LED

pins II through

tighten

timing

pins.

diskette drive cover assembly (112).

switch.

screw

II.

II

against

the

leads); then tighten

mounting

the

pins are stored in

the

screws

the

LED

mounting

casting

the

g.

LED into

the

diskette

the

c

D

PTX

fJ

Base

lEI

PTX Assembly

II

LED

II

LED

II

Timing

Mounting Casti

Assembly Mounting Screws

Pins (2)

ng

I

Screw

Stop

LED

LED Assembly

and

PTX Assemblies 2-47

Base Casting

162

See

Logic

LED

440

AND

for

PTX

SERVICE CHECKS

the

circuit

description.

PTX Service Check

Do LED service check first.

1.

Remove any diskette

LED

Service Check

.

1. Connect the negative probe

(ground) on the diskette drive control card.

Set

2.

3. Check

4. Move the positive probe

5. Check

6.

Diskette Control Card

the multimeter scale

positive probe

for

voltage).

for

Do PTX service check.

from

the drive.

to

• (diskette 1

a voltage level

to

5 Vdc and connect

of

to

G (diskette 2 LED

of

00

of

a multimeter

LED

voltage).

1 Vdc

to

1 Vdc

to

2 Vdc.

Set meter

2.

Move the positive probe

3 .

Check

4.

to

G

the

TPB-1

Move the positive probe

5.

Check

6.

Insert a diskette backwards.

7.

8.

Set the meter

Repeat

9.

of

less

+5V

oj~

to

the

15

Vdc

scale.

to

for

a voltage level

for

a voltage level

to

the 5 Vdc

steps

3 through 6 and check

than 1 V dc.

TPB11.

Gnd

TPA

12

_L06

o

G07

G06 I

~

J07

of 3 Vdc

to

of 3 Vdc

I

G08

Gl0

I

+5V J09

TPB1~:

•

CD

(diskette 1 PTX).

to

6 Vdc.

• (diskette 2 PTX).

to

6 Vdc.

scale.

for

a voltage level

A2 Connector

007

Black Red

006 B06

Red

B07

Black

Diskette

LED

008

Black

B09

Yellow 011 Yellow 010

Slack

PTX

Diskette

2 LED

PTX

8528195

16

D

4.g~.~000

00

or

~~4_1_78_06_5_~

~ti

2-48

. . :

4178068 TPA-1

______

~

I 163 PTX

Service

Check

1.

Remove any diskette from the drive.

AMPLIFIER

SERVICE CHECK

11. Watch

12.

the

jumper

should give a reading

first time

Move

the

meter and

to

• (+5 Vdc) several times. The meter

the

test

jumper

touch

the

other

of

2.5 Vdc

pin was touched.

from.

to

0 (diskette 1 PTX).

end

or

more after

of

the

2. Turn off the IPO switch.

3.

Disconnect

DANGER

Voltage

power cable is

4. Turn on

5. Insert a diskette backwards.

6. Set the meter

7.

Connect (ground).

8. Connect

9. Check for a reading of less

on.

the

drive

is

present

is

disconnected and

the

IPO

switch.

to

the

negative probe of

the

positive probe

motpr

at

the

5 Vdc scale.

power cable.

socket when

the

meter

to

e (+ index).

than

1 Vdc.

the

IPO

to.

switch

13. Repeat

14. Disconnect

15. Remove

16. Turn

17 Connect

18. Turn on

Diskette Control Card

machine.

off

step

the

the I PO

the

11.

diskette.

drive

IPO

0000

o 0

jumper and remove it from

switch.

motor

power cable.

switch.

o

the

TPB-l

o/~

10. Attach

CAUTION

The PTX, LED, the incorrect

one

end

of

a jumper

or

drive card can

test

pins are jumpered.

to

" (diskette 2 PTX).

be

damaged if

4178065

LED

and PTX Assemblies 2-49

164

Removal

LED

REMOVAL

AND

REPLACEMENT

Replacement

1.

Install the LED assembly B

screws not

II

tighten.)

and the nuts

II

the

onto

two

mounting

the

guide. (Do

1. Turn

2.

3.

4.

5.

6.

7.

8. Remove the

off

the IPO switch.

Remove

Disconnect the diskette drive control cable position

Remove the covers.

Remove two the tabs

Remove the LED cable

Remove the guide.

nuts

the

diskette drive cover assembly (112).

A2

II.

two

screws

the

two

diskette 1

diskette 2 LED leads III by pushing

II

with

a small screwdriver

the

four

guide mounting screws

two

LED mounting screws B and

II.

Then remove the

IE

and

LED

from

the three retainers II.

LED

the

connector

leads

II

II.

assembly

from

and the

down

II

and

g.

on

the

2.

Replace

the

guide and the

four

mounting screws

II·

3.

Follow the cable path through three retainers

and insert

pair into Ensure lock in the connector slots.

Replace the cable connector covers and

4.

screws

5.

Plug the cable into position drive control card socket.

Perform the LED and PTX alignment (161); start

6.

with

the

two

diskette 1 leads (the wrapped

of

leads)

II

and

the

two

diskette 2 leads III

the

diskette drive control cable connector.

that

the

locking tabs

II

on the terminals

IE.

A2

II

on

step 3.

the

II

two

diskette

.'

1\

j'

2-50

('"

. '

164

LED

REMOVAL

AND

REPLACEMENT

o PTX Assembly

II

Guide

II

Guide Mounting Screws (4)

II

Cable Retainers

II

LED Assembly

II

LED Mounting Screws

II

LED Mounting

II

Locking

II

Position

IDJ

Cable

Connector

Nuts Tab A2

Cover Screws

m Diskette 2 LED Leads

1m

Diskette 2 PTX Leads

111

Diskette 1 LED Leads

iD

Diskette 1 PTX Leads

1m

Screwdriver

c

Em

010

011

Black Diskette 2 PTX -

Yellow Diskette 2 PTX

__

--~~

008

Black Diskette 1 PTX III

B09 Yellow Diskette 1 PTX

LED

and

PTX

Assemblies 2-51

165

PTX

REMOVAL

AND

REPLACEMENT

Replacement

Removal

1.

Turn

off

the IPO switch.

Remove the diskette drive cover assembly (112).

2.

CAUTION While performing the not

to

damage the LED leads.

3.

Remove the

the guide.

Disconnect the diskette drive control cable

4.

position

Remove the

5.

covers.

A2

four

II.

two

following

guide mounting screws

screws

steps, be careful

II

and the

two

II

and

from

connector

Install the PTX assembly

1. stop" mounting screw

Follow the cable path and insert the

2.

PTX leads (the wrapped pair two control cable connector. Ensure tabs slots.

3. Reinstall the connector covers and the

(away

from

II

diskette 2 PTX leads

IE

on the terminals lock in the connector

II

against the casting

leads); then reinstall the

and the washer.

two

of

leads)

II

into the diskette drive

that

the

II·

4. Plug the connector into position diskette drive control card socket.

5.

Reinstall the guide screws

6.

Perform

with

step

II.

the

5.

LED

II

and the

to

PTX alignment (161); start

A2

four

III

mounting

diskette 1

II

and the

locking

two

screws

of

the

two

6.

Remove the

two

diskette 2 PTX leads II by pushing

the tabs

7.

Remove the PTX mounting screw

washer.

8.

Remove the PTX assembly II. (Remember the

cable path

with

diskette 1 PTX leads

a small screwdriver

II.

II

for

the replacement procedure.)

II

and the

down

and the

on

2-52

,if

'(

">"

..

)'

165 PTX

REMOVAL

AND

REPLACEMENT

D Base Casting

fI

PTX Mounting Screw

II

PTX Assembly

II

Guide

II

Guide Mounting Screws (4)

II

Cable Retainers

IJ

LED Assembly

II

LED Mounting Screws

II

LED Mounting Nuts

1m

Locking

m Position

1m

Cable

III

Screwdriver

Stop

Tab A2

Connector

Cover Screws

III Diskette 2 LED Leads

lID

Diskette 2 PTX Leads

1m

Diskette 1 LED Leads

II

Diskette 1 PTX Leads

c

Dl0

IIDDll

Black Diskette 2 PTX Yellow Diskette 2

PTX--~-::::-V

__

--...:::....

LED

and PTX Assemblies 2-53

Cable, Socket, and Pin Assignments

170

I/O

INTERFACE CABLE PIN

r----------,

81

A2 I/O Cable Driver

5110 I

_

.?>~£u.!:r

______

r-------------,

I

A1

Board

ASSIGNMENTS

~

__________________

...

~~--------_+_-..;.A...;..;.,1

J

~I

~

__

A_2~A.l

A4

I 5106 Auxiliary I Tape Unit I

L

_______________

Boa~

II

B1

~

r--------------,

I

B1

A2

~

Board

B4

J

Board

2

A1

A3

1 The 5110 +5 Vdc stops here. The 5114 provides its own

+5 Vdc and +5 Vdc for attaching devices.

8 Interface

Pin 1 Pin 13

A2

Connector

A 1 Power Connector

D

4::

15

Signal Connector

(On Rear

of

Tape

Unit)

..

· . ·

:t~/in

• • • • •

A3 Signal Connector

1

9

25

I

I I

I 5103 Printer

L

______________

2The cable terminator

printer adapter card. a terminator must

25

be

CD

I/O Cable Assembly

A 1 Power Connector

Dv ·

B5

is

permanently wired

If

the printer

installed on the last I/O device.

....

.

A······

1

14

+~in

~Pm

@

is

not

Connector

8

15

A4

to

the 5103

in

the system,

.J

2-54

("'"

170

..

POWER

Line

I/O

INTERFACE CABLE PIN

CONNECTOR

Name

ASSIGNMENTS

II

SIGNAL

Line

CONNECTOR

Name

II

SIGNAL

Line

CONNECTOR

Name

'.,

(-"

..

.

C

C~,

C'

C\

1 2 3

4

5 6 Unused 7 Unused 8 Unused

9 Unused

10 Unused 11 12 13 14 15

..

B02 Unused B03 -Bus B04 -Bus B05 B06 -Bus B07 -Bus B08 -Bus B09 -Bus Bl0 Bll B12 B13

D02 D03 D04 D05 + External Horz Drive D06 D07 D08 Ground D09 Unused Dl0 Dll D12 Unused

D13 Unused

Notes:

1.

2.

C

+5

Vdc

+5

Vdc

+5

Vdc

+5

Vdc

+5

Vdc

Unused +8.5

Vdc

+12

Vdc

-12

Vdc

-5

Vdc

SIGNAL

This line A1-Dl

this subdevice 5114 generates a power on reset

use

5114.

CABLE

Line

Name

Out

7

Out

6

-Bus

Out

5

Out

4

Out

3

Out

2

Out

-Bus +Bus

-Interrupt +Osc/4

-Power Unused (see note 1) + Printer Clock

-Machine +Start

Unused Unused

signal

by

1

Out

0

Out

P

Req

2

On Reset (see note

Check

Execute Bit

is

grounded at the 5114

socket. A

the 5103 Printer on

to

recognize its

address.

second

5114

second

2)

uses

for

1 Ground

-Put

2 3 4 5 6 7 8 9 10

11

12

13 14 15 16

17 18

19 20 21 22 23 24 25

II

B02 B03 B04 B05 B06 B07 B08 B09 Bl0 Bll B12 -Control Strobe B12 B13

D02 D03 Unused D03 D04 D05 D06 D07 D08 Ground D08 D09 Dl0 Dll D12 D13

Strobe

-Control Strobe

-Get

Strobe

+DA

Y3 5

+DA

Y2 6

+DA

Yl

+DA

YO +DAX3 +DAX2 +DA

Xl +DAXO Unused Ground +Op

Code E

+Bus

in P

+Bus

in 7 17 Unused

+Bus

in 6 18 Unused

+Bus

in 5

+Bus

in 4 20

+Bus

in 3

+Bus

in 2

+Bus

in 1 Unused +Bus

in 0 25

SIGNAL

CABLE

Line

Name

Unused +DAXO +DAXl +DAX2 +DAX3 +DA

YO

+DA

Yl

+DA

Y2

+DA

Y3

-Get

Strobe

-Put

Strobe B13 Unused

+Bus

In 0

+Bus

In 1 +Bus

In 2 +Bus

In 3 +Bus

In 4

+Bus

In 5 +Bus

In 6 +Bus

In 7 +Bus

In P +Op

Code E

2 3 4

7 8 9 10 11 12 13 14 15 16 Unused

19

21 22 23 24 Unused

II

B02 B03 B04 Unused B05 B06 B07 Unused B08 B09 Unused Bl0 Bll

D02

D04 D05 Unused D06 D07 Unused

D09 Dl0 Dll 012 D13 Unused

Ground +Osc/4

-Interrupt +Bus

-Bus

-Bus Ground Ground Unused

Unused +Start

-Machine + External Horz Drive + Printer Clock

-Power (see

POWER CABLE

Line

+5 +5

Unused Unused

Unused

Unused +8.5 +12

+5 +5 +5

Unused

Unused Unused Unused

-5

-12

Out

Out Out Out

Out Out Out Out

note

Name

Vdc Vdc

Vdc

Vdc Vdc Vdc

Vdc

Req

P

0

1 2 3 4 5 6 7

Execute

Check

On Reset

2)

2

Cable, Socket, and

Assignments 2-55

171

A1

BOARD SOCKET

ASSIGNMENTS

AND

(Page 1 of 4)

o

o 0 B

·02-

• •

•

• •

·13·

.,

•

• •

•

• •

o

C

0·02_

B

0.02·

• •

•

13.

• •

·13·

•

+5

Vdc

•

• Gnd

•

-

• •

·13·

P M

·02·

• •

.13.

U S

·02·

••

· · J ·

••

.13.

o

B

•

B

o

o A B

·02·

• •

•

• •

·13

•

>.:11

&.-

D Pin Side

CE

Probe Connector Pins

II

Pin Numbering

of

A1 Board

2-56

o

('

171

Socket

A1

BOARD SOCKET

ASSIGNMENTS

Card/Cable

AND

(Page 2

of

4)

Line

Name

or

Voltage

Line

Name

or

Voltag~

(

~

C

(~t~!

https://manualmachine.com/

Al A2 A3 A4 Bl B2 B3 B4

Cl C2 C3 C4 01 A3 Signal Cable 02 03 04

Pin Line

A1B02 Spare

A1B03 -Bus

A1B04

A1B05 -Bus

A1B06

A1B07 -Bus Out Bit 3

A1BOB A1B09 -Bus A1Bl0 Al A1B12 A1B13

A3 Signal Cable Al

Power Cable

A2

Signal Cable

Power Cable (internal)

VFO

Card}

VFO Card all machines,

Spare MAP 050 Drive 2 Signal Cable

Adapter Card Adapter Card Adapter Card Adapter Card

Spare

A2 Signal Cable

Drive 1 Signal Cable

Name

Out

Bit 7

-Bus

Out

Bit 6

Out

Bit 5

-Bus

Out

Bit 4

-Bus

Out

Bit 2

Out

Bit 1

-Bus

Out

Bit 0

Bl1

+ Bus

Out

-Interrupt Request 2 +Oscillator

Bit P

Not

or

/ 4

present on

Voltage

see

A2B02 A2B03 A2B04 A2B05 A2B06 A2B07 A2BOB A2B09 A2Bl0 A2Bll A2B12 A2B13

A2D02 A2D03 A2D04 A2D05 A2D06 A2D07 A2DOB

A2D09

A2Dl0

A2Dll

A2D12 A2D13

A3B02 Spare A3B03 A3B04 A3B05 A3B06 A3B07 A3BOB A3B09 A3Bl0 A3Bll A3B12 -Control Strobe A3B13

+5

VdC} Vdc

Vdc

VdC}

Vdc

(from 51101.)

Vdc

(from 51101)

Vdc

Address

Address X2

Address

Address Y2 Address

Strobe

(from 51101)

+5 Spare Spare Spare Spare Spare Spare Spare

+B.5

+12 Spare

+5

+5 +5 Spare Spare Spare Ground Spare Spare

-5

-12 Spare

+Device + Device Address +Device + Device Address X3 +Device + Device Address +Device +Device

-Get Strobe

-Put

XO Xl

YO Yl

Y3

A4B02 A4B03 A4B04 A4B05 A4B06

A4B07 A4BOB A4B09 A4Bl0 A4B11 A4B12 A4B13

I

A4D02

A4D03

A4D04

A4D05

A4D06

A4D07

A4DOB

A4D09

A4Dl0

A4D11

A4D12

A4D13

B1B02

B1B03

B1B04

B1B05 Spare

B1B06

B1B07 Spare

B1BOB B1B09 B1Bl0 Bl B1B12 B1B13

Bll

+5

+5 +5 Spare Ground

Ground Ground Ground

-5

+B.5

+12 +12

+5

+5 Spare

Ground

+24

-5

-12

+Standard +4F +Standard

Spare

Ground

+VFO

Spare

+File

Spare

Vdc }

(from 5114)

Vdc Vdc

Vdc

(from 5114)

Vdc Vdc Vdc

VdC}

Vdc

(from 5114)

Vdc

(from 5114)

Vdc

Vdc Vdc

Clock

Clock Phase 1

Data

Sync

data 1

C'

...

C

c

A1D02 -Power on Reset A1D03 -Drives 3 and 4 (spare on A1D04 A1D05 + External Horizontal Drive A1D06 A1D07 A1DOB A1D09 A1Dl0 A1Dll A1D12 A1D13

IThe 2These

+ Printer Clock

-Machine Check +Start

Ground Spare Spare Spare Spare Spare

+5

Vdc

is

not

pins apply

Execute

used

to

drive 1.

on this board

first

5114)

and

is

not forwarded from

A3D02 A3D03 A3D04 A3D05 A3D06 A3D07 A3DOB Ground A3D09 A3Dl0 A3Dll A3D12 A3D13

+Bus Spare +Bus +Bus +Bus +Bus

+Bus +Bus +Bus +Bus +Op

these

Code E

In Bit 0

In Bit 1 In Bit 2 In Bit 3 In Bit 4

In Bit 5 In Bit 6 In Bit 7 In Bit P

pins.

B1D02 B1D03 B1D04 B1D05 B1D06 B1D07 B1DOB B1D09 B1Dl0 B1D11 B1D12 Spare

B1D13 Spare

Spare +5

Vdc Spare Spare

-5

Vdc +MFM Ground Spare Spare Spare

Cable, Socket,

(from 5114)

and

Pin Assignments 2-57

171

A1

BOARD

SOCKET

ASSIGNMENTS

Line

Name

or

Voltage

AND

(Page 3

of

4)

Line

Name

or

Voltage

Line

Name

or

Voltage

:\:),

81G02 81G03 81G04 81G05 81G06 81G07 81G08 81G09 81Gl0 81Gl1 81G12 81G13

81J02 81J03 81J04 81J05 81J06 8lJ07 81J08 81J09 81Jl0 81Jll 81J12 81J13

83802 83803 83804 83805 83806 83807 83808 83809 83810 83811 83812 838,13

Spare Spare Spare Spare

Spare

+TPV

+TPY Spare Spare Spare 84811 Spare Spare Spare

Spare

+5

Vdc Spare Spare Spare Spare Ground Spare Spare Spare 84D11 Spare +Data

Window

Spare C1802 Spare C1803 Spare C1804 Spare C1805 Spare C1806 Spare C1807 Spare C1808 Spare C1809 Spare C1810 Spare C1811 + 8us Spare C1812 Spare

Drive 2 Signal Cable Socket

84802 84803 84804 84805 84806 84807 84808 84809 84810

84812 84813

84D02 84D03 84D04 84D05 84D06 84D07 84D08 84D09 84Dl0

84D12 84D13

C1813

+Access +Access +Access +Access Spare +File + Diskette Sense

-Diskette Drive Sense + Head Engaged

+Inner +Index

+Write +5

Vdc +Erase Gate +Write +Inner +Select Ground + Erase Current Sense +24

-5

Vdc Spare Spare

+Oscillator

-8us

-8us +Device

-Interrupt

-Machine

0 1 2 3

Data

Track Select

Data

Gate

Tracks

Head 1

Vdc

(from 5114)

In

Out

8it

Out

8it

Out

8it

Out

8it

Out

8it

Out

8it

Out

8it

Address V3

Out

8it

Request 2

Check

C1G02 C1G03 C1G04 C1G05 C1G06 C1G07 C1G08 C1G09 C1Gl0 C1G11

C1G12

C1G13

C1J02 C1J03 C1J04 C1J05 ClJ06 ClJ07 C1J08 C1J09 C1Jl0 C1Jll C1J12 C1J13

C1M02 7 6 5 4 3 2

1

P

C1M03

C1M04

C1M05

C1M06

C1M07

C1M08

C1M09

C1Ml0

Cl

C1M12

C1M13

+Start + Device. Address +Device + Device Address X2 + Deivce Address X3 + Device Address + Device Address +Device

-Power Ground

-Control Strobe

-Put

Strobe

+8us +5

Vdc +8us +8us +8us +Oscillator Ground +8us +8us +8us +8us

-Power

+Standard +4F

Clock Phase 1 +Standard Ground Gound

-Power +MFM Ground +VFO

M11

-Power +File + Data

Execute

Address

Address V2

On

Reset

In

8it

0

In

8it

1

In

8it

2

In

8it

3

Out

In

8it

5

In

8it

6

In

8it

7

in

8it

P

On

Reset

Clock

Data

On Reset

Sync

On

Reset In

Data 1

Window

XO Xl

VO Y1

Out

"

1~

,Ii'

'(I,

,I'

1'1'

'41.

83D02 83D03 83D04 83D05 83D06 83D07 83D08 83D09 83D10 83Dll 83D12 83D13

1The 2These pins apply

2-58

+5

Spare Spare Spare Spare Spare Spare Spare Spare Spare Spare Spare Spare

Vdc

is

not

used on

to

drive

this

1.

C1D02 C1D03 C1D04 Gound C1D05 C1D06 C1D07 Ground C1D08 Ground C1D09 C1Dl0 Cl C1D12 C1D13

board and is

Ground +5

Vdc

-Get

Strobe

-5

Vdc

(from 5114)

-8us

Out

8it

0

+ 8us

Out

Parity Error

Dl1

+ Device Address Parity Error +8us

In

8it

4

+Op

Code E

not

forwarded

from

these pins.

C1P02 C1P03 C1P04 C1P05 C1P06 C1P07 C1P08 C1P09 C1

Pl0

Cl

Pll C1P12 Cl

P13

+Access +5

Vdc +Access +Access +Access +File

Data (drive 2) Spare +Access +Access +Access +Access +File

Data (drive 1)

0 (drive 2)

1 (drive 2) 2 (drive 2)

3 (drive 2)

0 (drive 1)

1 (drive 1) 2 (drive 1) 3 (drive

1)

/

",

,.

f'

"

'",

171

A1

BOARD SOCKET

ASSIGNMENTS

(~':'~\

Line

Name

or

Voltage

AND

(Page 4

of

4)

Line

Name

or

Voltage

Line

Name

or

Voltage

C1S02 C1S03 -Orives 3 and 4 C1S04 C1S05

(~~

C1S06 C1S07 C1S08 C1S09 C1Sl0 C1Sll C1S12 C1S13

C

C1U02 C1U03 C1U04 + Erase Gate (drive 1) C1U05 C1U06 C1U07 C1U08 Ground C1U09 + Erase Current Sense (drive C1Ul0 Cl

Ull C1U12 C1U13

D1B02

C~

01 B03 01B04 01B05 01B06 01B07 01B08 01B09

Bl0

01

Bll

01 01 B12 01B13

+Write

Oata (drive 2)

+Erase Gate (drive +Write

Gate (drive 2)

+Inner

Tracks (drive

+Select

-Oiskette Orive Sense (drive + Erase Current Sense (drive + Oiskette 2 Sense (drive +Head +Inner +Index

+Write

,+5

+Write +Inner +Select

+Oiskette + Head Engage (drive +Inner +Index

Spare

-Bus

-Bus Out

-Bus

-Bus Out

-Bus + Bus

-Interrupt +Oscillator

Head 1 (drive

Engage (drive 2)

Track Select (drive

(drive 2)

Oata (drive

Vdc

Gate (drive 1)

Tracks (drive 1)

Head 1 (drive 1)

2 Sense (drive

Track Select (drive

(drive 1)

Out

Bit 7

Out

Bit 6

Out

Bit

Out

Bit 4 Bit

Out

Bit Bit

Out

Bit

Out

Bit P

Request 2

/ 4

2)

1)

5

3 2

1

0

2)

1)

2)

1)

02B02

02B03

02B04

02B05

02B06

02B07 02B08 02B09

02Bl0 02Bll 02B12 02B13

02002

02003

02004 02005

02006

02007

02008 02009

02010

02011

02012

02013

03B02

03B03

03B04

03B05

03B06

03B07

03B08

03B09

03Bl0

03Bll

03B12

03B13

Spare Spare Spare Spare Spare

Spare Spare Spare

Spare

Spare Spare

Spare

Spare Spare

Spare

Spare Spare

Spare

+Oevice

+ Oevice Address

+Oevice

+ Oevice Address

+Oevice

+ Oevice

-Get

-Control

-Put

Address XO Address

Address

Address Address Address

Strobe

X1 X2 X3 YO Yl Y2 Y3

04B02 04B03 04B04 04B05 04B06 04B07 04B08 04B09 04Bl0 04Bll 04B12 04B13

04002 04003 04004 04005 04006

04007 04008 04009

04010 04011 04012 04013

Oata

Engage

2

Oata

Current

Vdc

22 3

2

Sense

Head

0 12

2

12

Sense

+Access +Access +Access +Access

Spare

+File +Oiskette Spare +Head Spare +Inner Track Select +lndex

+Write +5

Vdc +Erase Gate +Write Gate +Inner Tracks +Select Ground +Erase +24

-5

Vdc Spare Spare

2

C:

C

01002 01003 01004 01005 01006 01007 01008 01009 01010 01011 01012 01013

1 The +5 Vdc

2These pins apply

-Power

Ground

+Printer + External Horizontal Orive

-Machine +Start Ground Spare Spare Spare Spare Spare

is

not

On Reset

Clock,

Check

Execute

used

on this board and

to

drive 1.

Out

is

not

03002 03003 03004 03005 03006 03007 03008 03009 03010 03011 03012 03013

forwarded

+Bus Spare +Bus +Bus +Bus +Bus Ground +Bus +Bus +Bus +Bus +Op

Code E

from

In

Bit

0

In Bit 1 In

Bit 2 In Bit 3 In Bit 4

In Bit 5 In

Bit

6 In Bit 7 In Bit P

these pins.

Cable, Socket,

and

Pin Assignments 2-59

Diskette

Drive

Control

Card

172 CONTROL

Removal

1.

Turn

off

Disconnect the head cable • from the diskette

2.

drive control card

3.

Remove the card retainers

4. Remove the diskette drive control card.

Replacement

1.

Reinstall

that

the card is

2.

Reinstall

3. Connect the head control card.

CARD

the

IPO switch.

II.

the

diskette drive control card

se~ted

the

card retainers

in the socket.

cable"

II.

to

the diskette drive

II.

Ensure

4. Turn on the I

PO

switch.

D

Head

Cable

fJ

Control

II

Control Card Retainer

Card

Power

Cable

Solenoid

2-60

(~

c

This page is intentionally left blank.

c'

c

Diskette Drive Control Card 2-61

173 DISKETTE CONTROL CARD

TEST PINS (PART 8528195

or

4178068)

;r.-)

14

000

1

o

Head 0 CT

o

Head

o TP14V

====~1~

000000

000

H

CP

D

1 CT

D

__

1~6:..=::::::::::::::::::==::::::::::::::::::==::::::::::::::::::==:;::-.:.,.,

o I

10

0 0 0 0 0 0

COD

THP

0 D D

DOC

I

'l.""

o

D

THPl THP2 THP3 THP4 THP5 THP6 THP7 THP8 THP9 THP10 THPll THP12 THP13 THP14 THP15

THP16

D

160

1400

,

+Diskette Loaded +Predrive MC-3 +Predrive MC-2 +Predrive MC-l

Read Read

ign

MC-O

A

B Gain Access

TP1

Gain A Gain B

0

+Predrive Diskette 2 Index TPA6 Ground Diskette 1 Index Diff Diff

-High

-AI

-High Current Preamp Preamp TP2

-High

DD

o

0

Loc ation

0000

o 0 0

A2

fJ

TPA1 TPA2 TPA3 TPA4 +Inner Tracks TPA5 +Select

TPA7 TPA8 +24 Vdc TPA9 TPA10 TPAll TPA12 TPA13 Ground TPA14

+Write Data +Erase +Write Gate TPB3

+Erase

-5Vdc MC-l MCCommon Diskette 1 LED Voltage

Diskette 1 PTX

00

o 0 0

000

Location

00

00000

A1

II

TPBl

Gate TPB2

TPB4

Head

Current

1

Sense

TPB5 TPB6 +Diskette 2 TPB7 TPB8 + I nner Track Select TPB9 +Index TPB10 MC-3 TPBll TPB12 TPB13 TPB14 Diskette 2 LED Voltage TPB15 +5 Vdc TPB16

o

01

TPBIJ

01

TPAfJ

+Access +Access +Access +Access +File

+Head

MC-O MC-2

-Head

Diskette 2 PTX

0 1 2

3

Data

Sense

Engage

Load

2-62.

DISKETTE CONTROL CARD TEST PINS (PART 4178065)

14

100

0 0 0 0 0 0 0 0 0 0 0 I

000

D

o

Head 0 CT

o

Head 1 CT

D

1

_1;..::6:..===========-.!....

10

0 0 0

COO

0 0 0 0 0

Ii

o

DD

DO

col

o

D

c

D

THP1 THP2 THP3 THP4 THP5 THP6 THP7 THP8 THP9 THP10 THP11 THP12 THP13 THP14 THP15 THP16

D D

00

160

14

0 0 0 0 0 0 0 0 0 0 0 0 0

Location A2

+Diskette Inserted

-Hd

Ld

Osc +14 Vdc Ground Ground Diskette 2 Index TPA6 Disketie 1 Index

Diff

Read

A TPA8

Diff

Read

B TPA9

-High

Gain

-AI

ign

Access

0

-High

Current Preamp Preamp TP2

-High

TPl

Gain A

Gain B

0

fJ

TPA1 TPA2 TPA3 +Write TPA4 TPA5 +Select

TPA7

TPA10 TPA11 +Hd Load Solenoid TPA12 Diskette 1 LED Voltage TPA13 Ground TPA14

000

+Write Data +Erase

+Inner Tracks

Ground +Current Enabled +24 Vdc

-5Vdc

MC-1

Diskette 1 PTX

00

Gate Gate

Head

0 0 0 0 0

Location

1

A1

o

01

TPsll

01

TPAfJ

II

TPB1 TPB2 +Access 1 TPB3 TPB4 TPB5 TPB6 +Diskette 2 TPB7 TPB8 TPB9 +lndex TPB10 TPB11 TPB12 MC-2 TPB13 TPB14 TPB15 TPB16

+Access

+Access +Access +File Data

+Head +Inner Track Select

MC-3

MC-O

-Head Diskette 2 LED Voltage +5Vdc Diskette 2 PTX

0

2 3

Sense

Engage

Load

Diskette Drive Control Card

2-63

175 DISKETTE CONTROL CARD SOCKET

CONNECTOR PINS

AND

O/J

B02

side

G13

J13

.~

___

------

"Maple

Block"

002

Interconnector

002

B02

2-64

013

Connector

side

(

(,

c

This

page

is

intentionally

left

blank.

c

Diskette Drive

Control

Card 2-65

177 DISKETTE CONTROL CARD HEAD

PINS

CABLE

"-

/

Head 1

Head 0

Read/Write

tap

Center

R/W

Read/Write

Erase Erase Cable Shield Gnd

Cable Shield

c;Jnd

Erase

Erase Read/Write

Center

tap

R/W

Read/Write

" "

(White)

(Blue)

(Black)

(Yellow)

(Red)

(Black) (Black)

(Red)

(Yellow)

(Black)

(Blue)

(White)

2-66

Power

180 POWER

Removal

1.

(~'

2.

3.

(""

4. Remove the AC box cover II.

v'

5.

6.

7. Remove the

8. Loosen the

9.

SUPPLY

Turn

off

the POWER switch

Turn

off

the

fPO

switch.

Unplug the 5114

Remove the Line Cord

Remove the AC box.

Slide the remove it.

power

from

J4

II

and

J2

..

connector.

two

base screws II.

supply

·on

the 5110.

the wall socket.

from

the AC box.

J3

II

connectors on the

to

the rear

of

the 5114 and

C'

"

c

o

Replacement

To replace the

power

supply, reverse the above steps.

c

Power 2-67

183

DC

VOLTAGE DISTRIBUTION

I From The 5110 0

+5 Vdc A2B02

+5 Vdc +5 Vdc +5 Vdc +5 Vdc +8.5 Vdc

-5

Vdc

+12 Vdc

-12

From The 5114 ¢ +5 Vdc

+5 Vdc +5 Vdc +5 Vdc

+5 Vdc +5 Vdc

Ground

Ground A4B07 Ground

Ground Ground Ground Ground Ground

-5

Vdc

+24 Vdc

Vdc

A2B03 A2002

A2003

A2004

A2B11

A2011 A2B12

A2012

A4B02 A4B03

A4804

A4002

A4003

A4004 A4806

A4B08 A4B09 A4006

A4007

A4008 A4009 A4B10

A4010

..-

--

-

--

-

.-

...

-

...

-

...

-

...

B1003

...

84003

T B1J03

C1J03

B1J08

Al008

.-

03008

T

l

.....

T

C1003

C1P03

04003

...

C1M05

T

C1 G 11

A3008

...

T

C1J08

5114

A 1 Board

01008

C1M06

C1008

...

01003

T

81008

81006

C1007 C1004 C1D02

C1006

rl

T

[

...

I

A4Bll

A4011 A4B12

A4B13 A4012

A4.D13

84011 04011 B4010

04010

(:,,)

,..--~

/11

'

\\.

,f

2-68

Contents

INTRODUCTION TYPICAL DISKETTE

DISKETTE Long Term Storage Shipping and Receiving DISKETTE

Diskette Insertion Diskette Removal STEPPER

Stepper

Stepper DISKETTE FM

(FREQUENCY Read Data MFM

(MODIFIED

PRINCIPLES Read Data VOLUME Volume

Label

Volume

Label

Volume HEADER Header Label Header Label

Header Label Fields DATA

RECORDING

GAP 1

Sync Field AM

1

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

10

Field

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

SYSTEM

MOTOR

Motor Motor

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

LABEL

Label Fields

LABEl.

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

CA8L1NG DESCRIPTION SAFETY

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

HANDLING

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

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

Description Operation

UNIT

DATA

MODULATED)

FREQUENCY

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

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

Layout Format

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

Layout Format.

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

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

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

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

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

.... , ....................

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

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

FLOW

.......

FORMAT

MODULATED)

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

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

.........

.................•......

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

FORMAT

,

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

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

:

...........

PRINCIPLES

FORMAT

..

3-2

3-3

34

3-5 3-5 3-5 3-7 3-7 3-7

3-8 3-8 3-8

3-9 3-10 3-10

3-12 3-12 3-14 3-14 3-15 3-15 3-18 3-18 3-19 3-19 3-21 3-21 3-21 3-21 3-21

CRC

..............•...............•.

GAP 2

.............................•.

AM

2

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

Data Field . . . .

Control Field GAP 3

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

GAP 4

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

Index,

.............•..........

TYPICAL TYPICAL DISKETTE Diskette Adapter Adapter Card Data Data OPERATIONS Initialization Access Access

Read Mode. . . , . . . . . , , . . . . . . . , . . . . . . • . . . . . 3-32

Read Mode Sensing

Write Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Write Mode Sensing

ADAPTER Diskette Diskette Access Access

POWER

AC Power

Power Supply . . . . . . . . . . . . . . . • . • . . . . . . . . . . . 3-39

Power Supply

OPERATIONS. TIMING

ADAPTER

Flow

Functional Components

..........................•..

Mode.

Mode Sensing

COMMANDS Control Sense

Control

Sense. . . . . . . . . . . . . . . . . . . . . . . . , . . . . . 3-38

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

Box

...•.•....•....•.........

..................•........

, . ,

.• , ..

,

.. , ..

, . , • ,

SEQUENCE

CARD

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

Flow

..............•........

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

. • . . . . . . . . . . . . . . . . . . . . . . , , . . . 3-30

.....•.....

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

......•.....•.........

. . . . . . • . . . . . . . . . . . . . . . . . . . . 3-36

.........................•..•

..........................•.

.............•.....•.........

Protection.

. . . . . . . . . . , . . . . . . . . . . . 3-39

•....

•.........••......

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

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

,

.....

,

.. , .. , ....

,

.... , ..

3-22 3-22

3-22 3-22 3-22

3-22

, , ,·3-22

,3-22

3-23

3-24

3-25

3-25 3-26 3-27 3-29

,3-29

3-31

3-33

3-35

3-36

3-37

3-39

c

Theory

Contents

3-1

Theory

Introduction

The 5114 Diskette that

attaches The 5114 stores and retrieves data by diskettes diskettes

for

for operation is 24k ,bytes per second. The data rate in a read operation is operation is only half the speed because

of

the verify read

operation. The data capacity

maximum

of

The commands and controls

provided

by these commands and controls between the system and the 5114.

The 5114 uses three types diskette 2 and diskette 2d. The 5114 can

read from all three types

The 5114 contains one

an

board,

I/O

supply.

Unit

is

an

to

a system via an

iater use and

input/output

I/O

by

reading data

(I/O)

device

interface cable.

writing

data on

from

immediate use. The data rate in a write

48k

bytes per second. The

of

the read operation

that

occurs on the

of

each diskette is a

write

1.2 megabytes.

for

operating the 5114 are

the system. The

interface port, and its own

I/O

of

diskettes: diskette

of

diskettes.

or

two

diskette drives, a logic

interface cable carries

1,

write

on and

DC

power

The logic board contains the diskette drive signal cables,

DC

power

, a

cable, the variable frequency oscillator (VFO) circuitry, and a diskette adapter logic card. The VFO circuitry can be located either on the diskette

or

adapter card

board is mounted on the back cover

An

I/O

interface cable allows

system or another

device can attach

The illustration on the facing

on a separate VFO card. The logic

of

the

5111'

the

5114

to

attach,

I/O

device. In addition, another

to

the system via the 5114.

page

shows the

two

possible

maximum system configurations.

power

The 5114

supply provides diskette drives and also provides device attached supply allows the system

to

the 5114. A relay in the

to This means that the 5114 the system power. The 5114 off

with

the IPO switch. This switch controls the

distribution

of

the AC and

DC

power

to

+5

Vdc

to

any

5114

control the 5114 power.

power

DC

power

goes on and

can also be turned

in the 5114.

off

the

I/O

power

with

DANGER

Some

DC

voltage

5114

when the IPO switch is in the

from

the

5110

is still present in the

OFF

position.

.J

~,

}I

The diskette drive uses both the frequency modulated

(FM) and the modified frequency modulated (MFM)

of

method 5114 is standard and drive 2 is optional. with immediate

recording data on the diskette. Drive 1 on a

On

two

diskette drives, drive 1 is nearest

power

off

(lPO) switch (100).

a 5114

to

the

3-2

I Typical System Cabling

(~

5103

__

(Note 2)

l--~S;;.~

.L-----

5110 (Note

5114

5103

(Note

3)

2)

CI

'"

/

C

Notes:

1.

When

a 5106 Auxiliary Tape

be attached directly

2.

When

a printer is attached,

unit in the string.

3.

No more than three the 5110. However, a 5106 Auxiliary Tape Unit and two

5114 units cannot be attached

4. A 5106 5110 Model X2X.

Auxiliary

to

I/O

Tape

Unit

is attached,

the 5110.

it

must be the last

devices can be attached

to

the same 5110.

Unit

cannot

be

attached

it

I/O

to

must

to

a

I

"traduction

3-3

Diskette Description

The

IBM

diskette

tective envelope. I nformation

the

diskette surface, which

The

oxide.

As

the

diskette rotates,

cleans

the

diskette. The envelope has access holes for

rotating

and for index hole sensing. There are

for recording data recording

diskette 2 and diskette

on both sides

the

of

is

a thin, flexible disk housed

diskette

diskette,

data on only

of

is

for

on

a diskette. Diskette 1 permits

the

diskette.

is

stored magnetically

is

coated with magnetic

free

to

rotate inside

the

inner surface

read/write (RIW) head

one

aide

of

20

permit the recording

Access Hole for Index Sensing

the

of

the

two

arrangements

the

diskette;

in

a pro-

on

envelope.

envelope

contact,

the

of

data

There are 77 tracks on each side

which

is

the

outside track,

can

not

be used for data. Tracks

two

innermost tracks, are reserved and can only be used for data if damaged.

Diskette 1 has Diskette 2

of

the

side

data. When data

is

practical

it

track. When data

however, each pair referred outside cylinder,

///

74 tracks available for recording data.

or

diskette

diskette, resulting in a total

is

recorded

to

refer

is

of

to

as

a cylinder. For example, cylinder 0,

is

made up

Sector ",-

'------------------ Side 1 l

.,,-

is

reserved

20

has 74 tracks available

on

to

each addressed circle

recorded

tracks (one upper and

on

of

~/

of

a diskette. Track 00,

as

a label

75

and 76, which are

as

replacement tracks

another

only one side

both

upper and lower

..........

track becomes

of

sides

-

......

-r--

: Side 0

....

.1..-.-Track

148 tracks

of of

of

a diskette,

one

Track 00

track

and

the

on

each

of a diskette, data as a

lower)

the

track

00.

00

is

Cylinder

o

Access Hole for Rotating

Access Hole for Read/Write Head Contact

Diskette 1

The location diskette 1 differs from

20.

When a diskette 1

index sensing circuits sense

and

the

Information a circular path on the diskette surface. A sector division during diskette initialization. Each sector write

one

or

read from a

rotates.

of

the

access hole for index sensing on

that

is

use

of

the

blank side

is

written

of

each track

record. Information

track

on

of

the

by a read/write head

on diskette 2 and diskette

inserted

that

the

Diskette 2

in

the diskette drive,

a diskette 1

is

prevented.

diskette

in

tracks. A track

that

was determined

is

magnetically written

as

is

used

the

Diskette

being used,

is

a

to

diskette

~Side1

When one-sided diskettes (diskette 1 's) are used, data

that

can be read or written

moving head or on 2 tracks (one on each side

moving the total a cylinder.

is

the

R/W

head

is

that

is

positioned. When two-sided diskettes (diskette 2's

20's)

are used,

the

R/W head

amount

the

most data

R/W

head assembly

is

positioned. When 2 tracks are used,

of

area

that

on

a track

track over which

that

of

the

is

the

can be accessed

Track

Side 0 Track

the

without

the

can be read or written diskette),

2 tracks over which

is

referred

without

76

R/W

Cyl-

l

inder

76

most

the

to

as

3-4

Diskette

Safety

LONG

following

If the before use. You should remove plastic shipping container during this time.

SHIPPING

shipping cartons are available at With ounces (280 grams). Be sure

carton

TERM

Place diskettes in their envelopes and store them in the

• Temperature

• Relative

•

Maximum

a diskette has been exposed

indicated range,

Use only shipping cartons

the

NOT EXPOSE TO HEAT

for

STORAGE

environment:

500 F

to

humidity

wet

AND

diskette

diskette storage

8 %

bulb 1850 F (29.40 C)

allow

RECEIVING

in place, the package weighs

1250 F (10.00 to

to

80 %

to

temperatures outside

5 minutes acclimation time

the

to

ship diskettes. Additional

IBM

to

label the package:

OR

SUNLIGHT. Save the

and/or

for

51.50 C)

diskette

from

branch offices.

10

later shipment .

its

DO

•

c

CI

Diskette Description/Diskette

Safety

3-5

Return a diskette

removed from

IBM

the

Disk.

Do

not

lay diskettes near food, drink, or ashtrays.

to

its envelope whenever it

diskette drive.

is

Do

not

touch or

Contaminated diskettes must be discarded.

Do

not

place diskettes near materials

be magnetized. Data can be lost from a diskette

exposed

to

attempt

a magnetic field.

to

clean diskette surfaces.

that

might

Do

not

use clips

Do

not

place heavy objects on diskettes. The

weight can cause serious damage.

or

rubber bands on a diskette.

Do

not

expose diskettes

51.5° C (125°

Do

not

write on diskettes outside label area.

D

F)

or

direct sunlight.

to

heat

greater than

"

•

,,f"

".

3-6

Diskette Handling

Open diskette drive cover.

(

(""

('

DISKETTE INSERTION

1.

Open the diskette drive cover assembly.

from

2.

Remove the diskette

3.

Place the diskette squarely into the diskette drive (with the label facing the cover).

Close the diskette drive cover assembly.

4.

DISKETTE REMOVAL

1 . Open the diskette drive cover assembly.

2. Remove the diskette.

3. Insert the diskette into a protective envelope.

4. Close the diskette drive cover assembly.

its protective envelope.

Remove diskette

from

envelope.

Press

to

Open

c

Place

diskette squarely

(with label facing cover) and close cover.

DIL--_---'

into

diskette drive

•

To

remove diskette,

reverse

above

steps.

Diskette Handling 3-7

Stepper Motor

Stepper Motor Description

If

you could rotate would maintain its detented position and follow the stator as

shown. Both

rotated

450 clockwise.

the

stator

in

the

stator poles and the

either direction, the

rotor

are shown

rotor

The dc stepper

(armature) and pairs motor

is

requiring no maintanance.

Notes:

1.

The

rotor motor the magnetic flux of the rotor. This causes a reduction in

the

you should

When

a magnetic field set up rotor

turns

it holds The electrical

stator windings acting on the permanent magnet rotor.

Shaft rotation is

continually pulsed.

2.

The

rotor power on. When power

felt

as

sound

motor

consists

of

a sealed unit having no gears

is

magnetized after assembly

manufacture. Disassembly

torque

produced by the motor. For th

not

disassemble

current

to the

a drag or roughness, and it may cause a clicking as

flows through a pair

provide

the

torque

rotor

shaft only a part of a revolution; then

shaft

in

an electrically detented position.

detent

is

not

cannot

the shaft

be easily turned by hand with the

is

of

a permanent magnet rotor

two-phase stator windings. The

or

commutators and

at

the plant of

of

the

motor

is

the

motor.

of

stator

windings,

in

the stator poles acts on

to

the rotor shaft. This torque

is

due

to

the direct current

continuous unless the stepper motor

is

off, any residual detenting

turned.

reduces

reason,

the

in

the

Note: Current flows only

time. Polarity of the stator poles half

of

the winding has the current flow.

If,

instead rotate its magnetic field by switching the next stator winding, the rotor turns until opposite-polarity magnetic poles are attracted ment. Note

is

position clockwise from The sequence of the phase pulses from the logic circuits determines the direction of rotation.

of

physically rotating the stator,

that

the polarity

in

that

one-half

of

shown

of

the

is

determined by which

current the

the

poles has rotated one in

the first illustration.

winding

you

electrically

to

closest

into

at

the

align-

a

Stepper Motor Operation

For ease

turns 9

This simplified stepper stator

of

understanding, the motor used

0

per step; the actual

poles and a ten-pole permanent magnet rotor.

motor

turns 1.80 per step.

consists

Input

Stator pole

in

this example

of

eight coil wound

A

rr

__

- .

Stator-pole

Common source

Input

winding

.-

In

the diskette unit, the stepper attached turns,

A

the distance

rotor moves The stepper motor moves 5 milliseconds. It requires moving assembly. Total seek time the number of tracks traveled plus

to

the head/carriage assembly.

the

band moves the assembly. A

motor

moves the assembly across

of

one track. A clockwise movement

the

assmebly toward

motor

the

assembly one

35

milliseconds

drive band

As

900 rotation

the

diskette

hub

of

to

is

5 milliseconds times

35

milliseconds.

the

of

the

track

stop

is

motor

the

diskette.

in

the

of

3-8

o

n

~

(j

~

i~

,/

Dat Bus Ou

.....

Device Address

I

•

Bus

-POR

- POR

In

Drive

+

Execute

Bus

Out

Parity Check

Machine Check

Device Address Parity Check

Start

3 and 4

Reset Control

+Current

..

.--

r

~

..

...

r-

Status

Reg

Write Buffer

Command

Decode

r--

OSC

Rd/Wr

and

Head Control

Serdes

~

and Control

r

I-

f-

Access Control

Read

I---

Buffer

Address

...

Decode

~

Parity Check

....---

OR

~

>---

I-

ff+-

..

-

~

Enable

r--

VFO

~

or

+Erase

+ Index

+ Diskette 2 Sense

+ File Data

I--

+ Write Data

+ Head Engage

+ Select + Inner Tracks + Inner Tracks + Write Gate

+ Erase Gate

+ Access 0 + Access 1

+ Access 2

+ Access

Current

Hd

3

Sense

1

Sel

.....---

Diskette Control Card

~

-

r-

R/W

Heads and Controls

C

iii'

;iI\

CD

r+ r+

CD

c:

:s

;+

c

Q)

r+

Q)

"'T1

5"

:E

~

-;;

~

....

CD

C

::l

;::;'

!i?

....

III

!!

o

~

eN

cO

-Get

Strobe

-Control Put

Strobe

-Op

Code E

Interrupt

Strobe

Req 2

Theory

FM

(Frequency Modulated) Fonnat

Principles

FM

format

surface. The frequency

(modulated)

When

are present. These pulses occur at a frequency

4

JLs.

When

Each 1 bit clock pulses so there is double the pulse frequency.

o

bit

so the pulse frequency

The

bytes) per second.

READ DATA

Each diskette surface as a change in magnetic direction (flux) from flux in the change in current direction is recognized as

either a clock pulse or a 1 bit pulse. change in the direction adjacent clock pulses, the adapter recognizes bit

is present.

is a method

to

represent data.

no data

data is present, the pulse frequency changes.

is recorded, no pulse is between the clock pulses,

raw

clock pulse

the bit immediately preceding it.

passes the

read/write

is

pulse is inserted halfway between adjacent

data rate in FM

read/write

of

recording data on a diskette

of

pulses

in

changed

present (all 0 bits), only clock pulses

of

every

is

not

changed.

or

1 bit pulse

heads

format

to

of

is

250,000 bits (31,250

is

recorded on the

As

this change in heads, change direction. This

the current between

it

causes the current

by

the adapter

If

there is no

that

two

a 0

If

a

/ "

Voltage

for

Clock

Pulses

Voltage for

Clock

Data

Resultant Pattern Recorded on

the Diskette

3-10

Change

Only

Change

and

Pulses

Bit

I I

~f4JJ.sl~

I I

I

C

I

The C and D above

The

I

D C

I I

numbers under the line show whether a 1

I

•

I

D C D C

I

I I I

0

the line show the clock

0

I I I

I

D C D C D C D C

I

I I

I

I I I

•

I I

I

I I I I I

0 0 0

and

data

bit

times.

bit

or

a 0 bit-is recorded.

D C

I

D C D C

I I

0

I

I I

\,

i

I

~-

\

,-

( I

See

logic

440

in

the

5110

description and test points.

File Data

2.0 V/cm

Example:

n

c

\,.-.

0

---

01010

~

'-

1

\0--

System Logic Manual

1"--

1

'--

C 0 C

1\

2.0JJs/cm

for

C

1'1

circuit

0

Note:

Use

Tektronix

oscil/oscope

Channel A sweep mode Ch

annel A level Channel A coupling Channel A slope Channel A source

C

Trigger

Mode

Channell Channell Times per division Connect channel 1 Connect trigger

Observe:

with

volts/division

input

Clock pulses every duration

and 500

be

between 2.4 and 4.2 volts.

xl0

to

453, 454, probes.

to

should

ns.

Pulse amplitude should

or

similar

Normal +

DC

+

External

Norma·1 Channell

V/cm

2.0 DC

2J1s/cm +File data +Index

4/ls.

be

between

test pin

Pulse.

100

c

•

c'

0.05

V/cm

IDF

V/cm

A

All

Read Head Signal

2 ms/cm

~

All

II

1\

0'5

10/ls/cm

~

1 '5

I

at

TP1 and TP2

I

l\

~

r\

'\

J

~

\

Note:

Use

Tektronix

oscilloscope

Channel A sweep mode Normal Channel A level Channel A coupling Channel A slope + Channel A source Trigger Normal Mode Channell Channel 2 volts/division Channell Channel 2

Invert Pull Times per division 2ms/cm Connect Connect channel 2 Connect

Observe:

with

volts/ division

input

channell

trigger

The amplitude should

xl0

to

be

453, 454,

probes.

or

+ DC

External

Add

0.05

0.05 AC

AC

Preamp Preamp TP2

+Index

of

the read signal

between 6.5

similar

mV/cm

out

TP1

test pin

to

560

mV.

FM (Frequency Modulated)

Format

Principles 3-11

MFM

(Modified Frequency Modulated)

Fonnat Principles

MFM

format surface. The frequency (modulated)

With

no data present (all 0 bits) the only pulses present are clock pulses. These pulses occur at a frequency every 2

When

Each 1 clock times. The clock pulses are suppressed however, so the frequency remains be suppressed unless each other. would bits is time,

the

is a method

to

represent data.

J.LS.

data is present, the pulse frequency changes.

bit

pulse is inserted halfway between adjacent

When normally occur at not

suppressed. Therefore,

pulse frequency changes.

of

recording data on a diskette

of

pulses is changed

the

same. All clock pulses will

two 0 bits

this happens, the clock pulse

the

(no pulse) occur next

clock

time

between the 0

for

that

particular

that

of

to

READ

DATA

Each clock pulse surface as a change in magnetic direction (flux) bit

immediately preceding it.

passes

read/write current direction is recognized clock pulse direction that

twice

the

of

a 0

bit

M

FM

format, when compared

the amount

or 1 bit

read/write heads

to

or

a 1

current at data time, the adapter recognizes

is present.

of

is recorded on

As

this change in

heads,

change direction. This change in

bit

pulse.

data on a diskette surface.

it

causes

by

If

there is no change

to

the

diskette

the

current

the

adapter as either a

FM

format, can record

from

flux

in

the

"

#'

/"

Therefore, a pulse appears (the clock pulses)

and

for

Voltage for Pulses

Voltage for Data

Resultant Pattern Recorded on

Change

Clock

Only

Change

Clock

and

Pulses

Bit

the Diskette

between any consecutive 0 bits

each

1 bit.

-+~Sr-

•

I

,

I

II

I

D

,

I I

The C and

CDC

I

,

I I

I

•

I

,

I

D C D C D

•

D above the line show the clock

•

f

I

I I

0 0

C

I

,

I

t

I

D C D C

.

I

0

D

C

I

D C

,

I

0 0

and

data

bit

,

I I I

I

,

I I

I

t

D

C D C D C

I

0

times.

I I

I

L

I

~,

-

"

•

3-12

The

numbers under the line show whether a 1

bit

or a 0

bit

is

recorded.

!If "',

\'~.

__

.Y'

( I

See

Logic

440

in the

5110

description and test points.

File Data Bit

1.0

Pattern: Hex

Example: 0101111001

1

r

0

ock

CI

n

V/cm

L

'"'-

'E5E5'

I

1

0

~

System Logic Manual

1

...

r-

2.0lJs/cm

-

o

...

for

circuit

I I

Clock I 0 1

-

,...

Note:

Use

Tektronix

oscilloscope

Channel A sweep mode Channel A Channel A coupling Channel A Channel A source Trigger

Mode Channel Channel Times per division Connect channel 1 Connect trigger

Observe:

with

xl

level

slope

1

volts/division

input

1

to

Clock

or

Pulse

duration should

100 and 500

should

0 probes.

to

be

453, 454,

or

similar

Normal +

DC

+

External Normal Channell

1.0

V/cm DC 2 )Js/cm

+File data

+Index test pin

data pulses every 2

ns.

Pulse

-between 2.4 and 4.2 volts.

to

be

between

amplitude

4

~s.

L'I

..

/

C

c

0.05

V/cm

V/cm!

Read Head Signal

2.0 ms/cm

One Record

200.0

JJs/cm

at

TP1

and TP2

Note:

Use

Tektronix

with

oscilloscope

Channel A sweep mode Channel A level Channel A coupling Channel A slope Channel A source Trigger Mode Channell Channel 2 Channell Channel 2 Invert

Times per division Connect Connect Connect

Observe:

xl0

v,olts/ division volts/division input input

channell channel 2

to

trigger

The amplitude

should

be

453, 454,

probes.

or

similar

Normal + DC

+

External Normal Add

0.05

V/cm

0.05

V/cm

AC AC

out

Pull

2ms/cm

to to

between 6.5 and 560

Preamp

Preamp TP2 +Index test pin

of

the

read

TPl

signal

mV.

MFM

(Modified Frequency Modulated)

Format

Principles 3-13

Volume Label

VOLUME

\

Byte

/

LABEL LAVOUT

c::

o

';;

co

u

E~

0)

....

c::

II>

0)

>"

(/)-

Track

00

Head 0

0)

"

c

~

0)

a:

Record 7

........

0)';;

c:: c::

S

032

c::

,9

....

co

,S:!

0)

"

c

~

0)

a::

0)

"

i::

-~

0)

a::

I I

I"

e I

I~

«

a3

ai

....

.0

1

x

col

/UJ

.....J

0)

"

I

c

~

0)

a::

3-14

'l

.......

/jI"

VOLUME

The volume label is located at track on all diskettes. to

the adapter arranged. The volume label is encoded on every

"'

(

initialization utility program. The volume label is always

'"

encoded in FM format. This label is read and verified

/

each drive.

LABEL

time

the

time

a sense command is issued

FORMAT

It

identifies the diskette and indicates

how

the information on

diskette is initialized using

00

head 0 record 7

the

diskette is the

diskette

the

to

the diskette

Owner Identification

alphameric characters. Identifies the diskette or diskette.

Extended Label Area

additional tracks have been allocated as header label tracks. Up diskette example: 0 track).

the

to

2d

can be set aside

=

(37-50):

owner

of

(64):

9 additional tracks on each side

no

additional tracks, 1 = one additional

This field contains

owner

the information

Indicates

for

how

header labels (for

of

written

many,

14

the

on the

if

of

a

any,

Volume Label Fields

Volume Label Identifier and Number

particular portion example:

Volume Identifier

this diskette. This identifier contains up characters. The identifier is specified during diskette initialization.

Accessibility

from be read off command in BASIC.

System Identification (24-36): Identifies the system

system group on which the diskette example: IBM 5100).

or

using

VaLl).

written from

the

of

the

diskette as a volume label (for

As

Specified By User

(10):

Indicates

to.

If

this

bit

or

written

)VOLID command in APL

to. This

(0-3):

if

the diskette can be read

is on,

the

bit

can be turned on

was

Identifies this

(4-9):

diskette cannot

or

initialized

Identifies

to

6 alphameric

the UTIL

(for

or

track 00, side 0 track

00, side 1 = 52 labels (2 labels per sector)

9 additional tracks, both sides

Volume Surface Indicator

a diskette 1 diskette 2 a diskette 1, 2

Extent Arrangement Indicator

diskette drive.

Special Requirements Indicator

diskette drive.

Physical Sector Length

as 1 28 bytes, 256 bytes

1 28 bytes, 1 1024 bytes.

= 19 labels

for

a diskette

Must

for

256 bytes, 2

(71):

or

a diskette 2d.

be set

to

be set

to

(75):

or

512 bytes.

=

936

labels

Identifies the diskette as

Set

to

space

2,

or M for a diskette

(72):

Not

space.

(73):

space.

Specifies

for

51

2 bytes,

used on

Not

the

Set

used on

sector length

to

space

or 3 for

for

2d.

5114

for

c

c"

Volume

Label 3-15

Physical Record Sequence

Code

(76-77):

sector sequencing other than sequential.

Specifies a

26

Sectors

Per

Track

When

The

sequencing

this

field

contains:

will

be:

Blank

01

1 2 3 4

1 2 3 3

4 7 5 5 6 7 8 9

10 11 12

6

7

8

9

10 11

12 13 13 14 14 15 15 16 16 17

17 18 18 19

20

19

20

21 21 22 23

22

23

24 24 22 25 25 26

26

02

11 13 15 17 19 21 23 25

10 12 14 16 18 20

24 26

1

5

9

2 4 6 8

04

03

1 1 4 7

13

10

17

13

16

21

19

25 22 25

2

10

14

5 8

18

22

11 14

26

17 20 23

11

26

15

3

19 23

6 9

12

15

16

18

20

21 24 24

05 06 07 08

1

1 1

5

6 7

11

9

16 21 26

13 19 25

2 2 8 7

2

6

3

7

4 8

12 17 22

13

18

23

14

19

24

10

15 20 25

14 20 26

3

9

8

15 21

4

10

4

16

9

22

5 11 17

5

23

6

12 18 24

8 15 22

2

9 16 23

3 3 10 17 24

4 11 18 25

5 12 19 26

6 7 13 20

7 14 21

09

10

1 1 1 1 1

1

9 17 25

2 10 18 26

11 19

4 12 20

5 13 21

6

14

22

15

23

8

16

24

11

10 19

21

2 2 2 2

11

12

20 22

3 3 3 3

12 13

21

23

4 4 4 16

14

13

22 24

5 5

5

14

15

23

25 6

6 6 15 16 24

26

7

'

16

17

25

8

18

8 17

9

26

19

9

10

20 22

18

11

12 13

12

13

23 25

13 14 24

26

14

15

25

15

17

26

16 18

17

19

7

20

18

8

21

19

10

9

22

20 10

11

21

23 12

11

24

14

15

16

17

4

18

5 6

19

6

20

7

21

8

22

9

10 23 11 24 12 25 13 26

2

3

4

5

7

8

9

"', "

3-16

-,

15 Sectors

Per

Track

(I

c

When this field contains:

The sequencing

When

this field contains: Blank

The sequencing

will

be: 1 1 1

will

be:

Blank

01

02 03

2

3

4 4 7

5 5 9

6 6

7 7 13 5

11

8 8 15 8

9 9

10 10 4 11 11 12 12 13 13 14 14 15 15

8 Sectors

1 1 1 2 3 3 5 4 4 5

6 6

7

8

01

2 3

5 2

7

8 8

8

10 12 12 14

Per

02 03

4

6

3 5

2

6

Track

7

10 13

11 14

15

4

1

4

7

2

3

6 9

1

7

2 5

8

3

6

04

05

1 1

5

11

9

13 2

2

6 12

10 14

3

13

7 4

11 15

14

4

10

8

12 15

04

1 5

2

6

3

7

4

8

7

3

8

9

5

6

06

1 7

13

4 7

10

2

8

14

5 12

11

3

9

15

6

12

07

1

8

15

14

6

13

5

4

11

3

10

2

9

c

Label Standard Version

Must

contain a W.

Pad

(80-127):

position

of

Extends

this

field contains hex

(79):

to

the

Not

end

used on

of

the

FF.

the

5114.

sector. Each

Volume Label 3-17

~

00

-----I~I

Reserved

------

System Code

------

File Application Type

-----

r:-I

c.o

CAl

c.o

~

c.o

(J'1

to

0')

to

--..I

to

00

to to

0 0

0

...

0

I\,)

...

0

CAl

0

~

0

(J'1

...

0

0')

0

--..I

...

0

00

0

c.o

-0.

...

0

-----

Expiration Date

Verify

/Copy

Indicator

DataSet--

Organization

-------

End

of

Data

Address

Reserved

-----

::I:

J:

0') 0')

0')

--..I

0')

00

0')

c.o

--..I

0

--..I

-

--..I

i')

-.....J

CAl

--..I

~

00

--..I

Multivolume

J!!~~~

Volume Sequence Indicator

------

Creation Date

------

Record Length

------

Offset to

Space

Reserved

-----

__

~ ~

~

(J'1

0

0'1

...

(J'1 I\,)

(J'1

CAl

(J'1

~

(J'1

0'1

(J'1

0')

(J'1

--..I

(J'1

00

(J'1

to

0')

0

0')

~

0')

(J'1

----

Block

Length

Record---

Attribute

------

Beginning

of

Extent

Physical-

£!e~rd

------

8ypass--

DataSet---

ExCha

-----

End

of

Extent

Record Block

Format

Indicator

Security Write

PrOtec"t-

Indicator

ngeType

Indicator

~n1!!~

i') i')

i')

CAl

i')

~

i') (J'1

I\,)

0')

I\,)

--..I

I\,)

00

CAl

...

CAl

I\,)

--

CAl

0')

CAl

--..I

CAl

00

CAl

c.ol

~

0

~

I\,)

~

CAl

----

Header Label Identifier

and

Number

------

Reserved

-----

Data

Set

Identifier

-----

to

-<

.-+

CD

'

........

-I

...,

Q)

(")

'"

0

(J'1

0

§I

rn

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HEADER LABEL

The header labels are located on track 00, head 0,

records 8 through 26 on all diskettes. In addition, on a diskette 2 located at track 00, head 1, records 8 through 26. On a diskette 2d, additional header labels can be set aside all record lengths.

-,

",'"

(

side

labels. record space controls, status information, and the record name that block

or

of

the diskette 2d can be allocated

The

of

FORMAT

diskette 2d, the header labels are also

Up

to

9 additional tracks on each

for

header

header labels are used

for

a particular use. They also contain

records.

to

reserve a block

for

of

Bypass Indicator

set

to

space.

Data Set Security

is protected by use label.

Write Protect Indicator

record space can be written on. space can be written on. protected and cannot be written on.

(40):

Not

(41):

of

the accessiblity

(42):

used on

Must

be a space. The data set

Indicates whether the

If

P,

the record space is

the

5114.

Must

bit

in the volume

blank, the record

be

c'

Header

Header label identifier and number

particular record it

DataSet particular block

Block Length

to length

Record Attribute

Beginning

the

Physical Record Length

the physical record. bytes; record length is 512 bytes. The physical record length indicator must be identical indicated by the volume label.

Label Fields

as

a header and denotes which header

is (for example: HDR1).

Identifier

this block

of

128 bytes and 8 = blank).

of

first

record

(5-21):

of

records. This field is user optional.

(22-26):

of

records (for example: B8128 = record

(27):

Extent

of

Assigns the logical record length

Must

(28-32):

a data set.

(33):

If

blank, the record length

if

1,

the record length is 256 bytes;

(0-3):

Establishes a name

be set

Identifies the address

Determines the size

to

the physical sector length

Identifies this

to

space.

if

2,

for

is

the

this

of

128

of

Exchange Type Indicator

reco.d blocking.

Multivolume Data Set Indicator

5114.

Volume

5114.

Creation Date

Record Length

record input. files. files.

Offset

5114. Must be set

Expiration Date

Verify

Sequence

It

is set

To

Next Record

/Copy

(47-52):

(53-56):

It

is set

to

maximum record length

(66-71):

Indicator

to

Space

to

space.

(72):

(43):

(45-46):

Not

Determines record size

logical record length

Not

Specifies the type

(44):

used by the 5114.

(57-61):

Not

used by the

Not

used

for

stream

Not

used on the

used on the 5114.

for

by

for

record

of

the

c

End

of

Extent

(34-38):

last record space reserved

Record Block Format

set is recorded in FM

(39):

or

Identifies the address

for

this data set.

Indicates whether the data

MFM.

of

the

Data Set Organization

is organized. otherwise, it is set

End

of

the next unused record space.

If

Data Address

(73):

SEQ is specified, the field is set

to

space.

(74-78):

Indicates

how

the data set

Identifies the address

Header Label 3-19

to

D,

of

System Code (95-107): Identifies the system

group during creation

File Application

to

code

Pad

Each

identify

010-127):

position

of

application files.

Type

(10B-109):

an

application file.

Extends

of

this field contains hex

to

the

Used

end

of

with

the

FF.

or

system

the system

sector.

3-20

'~,--

..

/

Data

Recording

Format

""

'\>"

(

/'

c

G

a

p

1

Sync Field

A

M

1

\

Index Pulse Occurs

GAP

1

This

gap

separates

of

the

first

FF in FM mode

I

Sync

Field

This field is required to

the information being read sync field contains a set number FM format, the sync field contains 6 bytes. In

format, the sync field contains

AM

1

AM

1 is the address mark that identifies the following

as

field

byte contains 4 bytes that are always hex A 1 A 1 A 1

an

that

is always hex

the index pulse

record.

ID field. In FM format, this field contains 1

Gap

and

1 consists

146 bytes

to

synchronize the adapter circuitry

FE.

from

the sync field

of

73 bytes

of

hex 4E in MFM mode.

from

the diskette.

of

bytes

12

bytes.

In

MFM

format, this field

10 Field

of

Hex

of

hex 00. In

MFM

FE.

~

Each

CC

G

a

RR

p

CC

Direction

One

Record

Note: All records on a track will have hex as

Sync Field

2 2

of

Rotation

of

a Diskette Track

The

head address

For a diskette 2 and diskette 2d, the head address contains either hex side

of

the diskette is being read

record length contains a number

The 3,

depending on

divided into.

Number

0

1

2

1

2

3

record length

A

M

for

a diskette 1 is always hex 00.

00

or hex

the

number

Record Format

FM 26 128 bytes FM 15 256 bytes FM MFM MFM MFM

if

any record on

CC RR

Data Field Control Field

Sectors

Track

8

26 256 bytes

15 512 bytes

8

or

CC

01

depending on which

or

written.

from

0 through

of

sectors the track is

Per

Record Length

512 bytes

1024

FF

recorded

that

track is damaged.

bytes

G (

a )

:

~

c

o

c

10 Field

The I D (identification) field is made up address, record address, head address, and record length.

track address contains a hex number from hex

The through hex 01, hex

record address contains a hex number from hex

The 01

through hex 1 A (hex

sector

4A

(hex

00

02

= track 02, and so on).

2,

and so on).

= track 00, hex

01

= sector

of

the track

01

1,

hex

= track

02

=

00

Data Recording

Format

3-21

CRC

Data

Field

Two

eRe

(cyclic redundancy check) bytes are generated

in the

eRe

register during a

field

or

a data field. The

by

is determined structure are field. The data operation is retained in a buffer read operation. During the verify read operation, the data is compared as diskette does the is read

eRe

diskette during subtracted

eRe

register is then tested register equals 0, the field

eRe

During a read operation, 2 generated in the fields. The bit structure by the field being read. the 2 to bytes are exactly the same, the field has been read correctly. occurs.

GAP

of

written

it

is read

buffer, a data check error occurs. Also,

from

register.

register during the verify read operation. The

register does not equal

an algebraic formula applied

eRe

the

2

eRe

If

2

an algebraic formula applied

the field being written. These 2

on the diskette immediately following the

written

bit

for

from

the diskette.

not

compare

the diskette, 2

When

the 2

me

write

from

the 2

eRe

bytes on the diskette are read and compared

bytes

from

they are

not

write

bit

structure

operation

of

the

for

eRe eRe

on the diskette during a

for

use during the verify

bit

with

the data in the buffer,

If

any

bit

read

with

the

corresponding

as

eRe

bytres are built in the

eRe

bytes (written on the

operation) are read, they are

eRe

bytes that were built in the

for

a content

was

0, a eRe

eRe

register

of

the

After

the complete field is read,

the

exacly the same, a

of

O.

If

written correctly.

error occurs.

bytes are again

for

10

fields and data

eRe

bytes is determined

to

the

bit

structure

eRe

register.

the

If

eRe

an

bytes

to

the

bytes

write

from

the data

eRe

If

the

eRe

error

ID

bit

the

bit

in

eRe

the

of

The data field contains the data record.

Control

The control field contains data that

GAP

Gap 3 separates contains hex

it

Record Format

FM FM FM

MFM MFM MFM

GAP

Gap 4 occurs after the last record

track and separates that record This gap contains a variable number in FM in the speed interchangeability

Field

particular record.

3

one sector

FF

in

FM

contains hex 4E.

Gap Size

27

bytes

42 bytes

58 bytes 54 bytes

84 bytes

116 bytes

4

format

MFM

and a variable number

format. The actual number

of

the diskette. The length is variable

of

diskettes between diskette drives.

to

from

another. This

format. In

Record

Length 128 bytes 256 bytes 512 bytes 256 bytes 512 bytes 1024 bytes

control the reading

MFM

of

the last sector

from

the index pulse. of of

of

gap

format,

of

a

bytes

of

hex

FF

bytes

of

hex

4E

bytes depends on

to

allow

This Gap is used field. Gap 2 consists format

and 22 bytes

to

separate

of

11

hex

AM 2

AM

2 is the address mark

field

as

either a data field or a control field. following contains hex A 1 A 1 A 1

2 (in FM format) contains hex

contains hex A 1 A 1 A 1

3-22

field is a data field,

FB.

In

FB.

If

the following field

that

MFM

format, it contains hex

F8.

the

10

field

from

bytes

of

hex

FF

in FM

FF

in

MFM

format.

identifies the following

If

AM

2 (in FM format)

is

a control field,

Fa.

In

MFM

format,

the data

the

AM

it

Index

An

index pulse occurs each time the index hole in the diskette passes the light emitting (LED/PTX)

indicates track will be the next sector heads.

of

the diskette drive. The index pulse

to

the adapter

that

diode/phototransistor

sector 1

to

of

that

reach the read /

particular

write

....

,f'-

'{

...

~

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