Cromemco HD20 Product Description Manual

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Part No.

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Cromemco~

HD-20

Product Description Manual

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CROMEMCO,

Inc.

280

Bernardo

Avenue

Mountain

View,

CA.

94043

April

1983

Copyright

©

1983

CROMEMCO,

Inc.

All

Rights

Reserved

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....

•

LIMITED WARRANTY

Cromemco,

Inc.

("Cromemco")

warrants

this

product

against

defectsinmalerial

and

workmanshiptoIhe

original

purchaser

for

nirlety

(90)

days

from

the

dateofpurchase,

subjecllo

Ihe

following

terms

and

conditions.

.

WhatIsCoveredByThis

Warranty:

UUfing

the

ninew

~9G)

cay

warranty

per'IOO

Cfomemco

will,atits

option,

repairorreplace

this

Gromemco

productorrepairorreplace

wilh

neworused

parIs

any

partsorcomponents,

manufacturedbyCromemco,

which

provetobe

defective,

provided

the

productisreturnedtoan

Authorized

Cromemco

Dealerasset

forth

below.

How

To

Obtain

Warranty

Service:

You

should

immediately

notifyINWRITING

your

Authorized

Cromemco

DealerorCromemcoofproblems

encountered'

during

the

warranty

period.Inorder

to

obtain

warranty

service,

first

obtainareturn

authorization

numberbycontacting

the

Authorized

Cromemco

Dealer

from

whom

you

purchased

the

?fcduct ihen

aUach\0\he

procuc\:

1.

Your

name.

address

and

telephone

number.

2.

the

return

auth.orization

number.

3.adescriptionofthe

problem,

and

4.

proofofthe

dateofretail

purchase.

Shiporotherwise

return

the

product,

transportation

and

insurance

costs

prepaid,tothe

Authorized

Cromemco

Dealer.IIyou

are

unabletoreceive

warran-

ty

repair

from

the

Authorized

Cromemco

Dealer

from

whOm

you

purchased

the

product,

you

should

contact

Cromemco

Cusfomer

SupportatCromemco,

Inc.,

280

Bernardo

Ave.,

Mounlain

View.

Ca.

94043.

WhatIsNot

CoveredByThis

Warranty:

O'omemco

d~s

not

lIIatrant

any

pTOducts,

componentsOfparis

not

manufacturedbyCromemco.

This

warranty

does

not

applyjfthe

product

has

been

damagedbyaccident,

abuse,

misuse,

modificalionormisapplication;bydamage

during

shipment;

orbyimproper

service.

This

produclisno!

warrantedtooperate

satisfactorily

with

peripheralsorproducts

not

manufacturedbyCromemco.

Transporta-

tion

and

insurance

charges

incurredintransporting

the

product10and

from

the

AuthorIzed

Cfomemco

DealerOfCromemco

are

not

coveredbythis

Warranty.

Exclusionofliability,

Damages,

and

Other

Warranties:

1H1S

WARRANTY

ISINLIEUOFALL

OTHER

WARRANTIES,

WHETHER

ORALORWRITTEN,

EXPRESSORIMPLIED.

ANY

IMPLIED

WARRANTIES,

INCLUDING

IMPLIED

WARRANTIESOFMERCHANTABILITY

AND

FITNESS

fORAPARTICULAR

PURPOSE,

ARE

LIMITEDINDURATIONTONINE-

TY

(90)

DAYS

FROM

THE

DATEOFPURCHASEOFTHIS

PRODUCT.IFTHIS

PRODUCTISNOTINGOOD

WORKING

ORDERASWARRANTED

l\BOVE..

YOUR

SOLE.

REMEDY

SHALLBEREPAIRORREPLACEMENTASPROVIDED

ABOVE.

CROMEMCO

SHALL

NOTBELIABLE

FOR

INCIDEN·

TAL

AND/OR

CONSEQUENTIAL

DAMAGES

FOR

THE

BREACHOFANY

EXPRESSORIMPLIED

WARRANTY,

INCLUDING

DAMAGETOPROPERTY

AND,TOTHE

EXTENT

PERMITTEDBYLAW,

DAMAGES

FOR

PERSONAL

INJURY,

EVENIFCROMEMCO

HAS

BEEN

ADVISEDOFTHE

POSSIBIL-

ITYOFSUCH

DAMAGES.

THE

AGENTS.

DEALERS,

AND

EMPLOYEESOFCROMEMCO

ARE

NOT

AUTHORIZEDTOMAKE

MODIFICATIONS

TO

THIS

WARRANTY,ORADDITIONAL

WARRANTIES

BINDINGONCROMEMCO

ABOUTORFOR

PRODUCTS

SOLDORLICENSEDBYCROMEMCO.

ACCORDINGLY,

ADDITIONAL

STATEMENTS

WHETHER

CRALORWRITTEN

EXCEPT

SIGNED

WRITTEN

STATEMENTS

FROMANOFFICER

OF

CROMEMCODONOT

CONSTITUTE

WARRANTIES

AND

SHOULD

NOTBERELIED

UPON.

SOFTWARE,

TECHNICAL

INFORMATION

AND

FIRM·

Wf..RE

f-,R£

LICENSED

ONl'1'

B'1'ASEPfl,R1I.TE

AGREEMENiONAN

·"A5

IS"

BASIS.

LimitationonStatuteofLimitation

and

Transferability:

This

warranty

and

the

statuteoflimitations

shalll'Ufl

concurrently

with

any

acceptance

period.

TlllS

warrantyisnot

translerable.Nosuit,

litigation,oraction

shallbebrought

basedonthe

alleged

breachofthis

warrantyorimplied

warranties

more

than

one

year

after

the

dateofpurchaseinthose

jurisdictions

allOWing

suchalimitation,

otherwisenosuch

action

shallbebrought

more

than

one

year

after

the

expirationofthis

warranty.

Other

Important

Provisions:

Some

sfaTesdonot

allow

Ihe

exclusionorlimitationofincidentalorconsequential

damagesorlimitationsonhow

longanimplied

warranty

lasts,sothe

above

limitationorexclusion

may

not

applytoyou.

This

warranty

shall

notbeapplicabletothe

extent

that

any

provisionofthis

warrantyisprohibited

by

any

federal,

stateormunicipallalll

which

caonotbepreempted.

This

warranty

grves

you

speciflc

legal

rights.

and

you

may

also

have

other

righls

which

vary

Irom

stale10state.

7/82

./

,

,

,

i

I

"","-

/ -c

c>

"

.1·1

CROM~CO

,"

i

i

/'

BD-20

Installation

Procedure

•

1

,

,jj

..

~'

~,-~~

--'"

(

Part

No.

023-6042

.~

CROMEMCO,

INC.

280

Bernardo

Avenue

Mountain

View,

CA

94043

Copyright

©

1983

CROMEMCO,

INC.

All

Rights

Reserved

i

I

March

1983

{ I

/ .

. to·

(;

This

manual

was

produced

using

a

Cromemco

System

Three

computer

wi

th

a Cromemco HDD-22

Hard

Disk

Storage

System

running

under

the

Cromemco Cromix™

Operating

System.

The

text

was

edi

ted

with

the

Cromemco

Cromix

Scr

een

Editor.

The

edited

text

was

proofread

by

the

Cromemco

SpellMaster™

Program

and

format-

ted

by

the

Cromemco Word

processing

System

Formatter

II.

Camera-ready

copy

was

printed

on

a Cromemco

3355B

printer.

"\

\

,

8D-20

INSTALLATION

PROCEDURE

mIS

PROCEDURE

IS

ONLY

TO

BE

PERFORMED BY

AN

AUTHORIZED

CROMEMCO

DEALER

OR

REPAIR

FACILITY.

BEFORE

PROCEEDING,

MAKE

SURE

THAT

YOU

ARE

USING

THE

COOS OPERATING SYSTEM

VERSION

2.56

OR

HIGHER,

THE CROMIX

OPERATING

SYSTEM

VERSION

11.16

OR

HIGHER,

OR THE

68000

CROMIX

OPERATING

SYSTEM

VERSION

20.14

OR

HIGHER.

SEVERE

DAMAGE

TO THE

80-20

DRIVE

MAY

RESULT

IF

YOU

USE

OLDER

VERSIONS

OF

THE

OPERATING

SYSTEM.

THIS

DAMAGE

IS

NOT

COYERED

BY

THE

CROMEMCQ

LIMITED

WARRANTY.

The

HD-20

is

designed

to

operate

in

a Cromemco

System

Two

or

Three.

Prior

to

installation,

verify

that

the

drive

is

set

up

to

respond

as

drive

O.

The

blue

jumper

should

be

on

the

left

set

of

the

drive

select

pins

(as

viewed

form

the

rear,

see

Figure

1).

Signal

Cable

Connection

The

36

conductor

signal

cable

is

connected

between

the

HD-20

and

the

WDI-II.

The

first

step

in

the

installation

of

the

HD-20

is

the

co

nnecti

on

of

the

signal

cable

to

the

HD-20.

This

must

be

done

before

the

drive

is

mounted

in

the

system.

Looking

at

the

rear

of

the

drive

with

the

heat

sink

on

the

left,

the

cable

is

connected

with

the

index

strip

to

the

right.

See

Figure

2.

You

are

now

ready

to

mount

the

HD-20.

of

the

following

instructions

which

your

system.

1

Refer

to

section

is

appropriate

to

System

Two

and

Z2-D

Mounting

Procedure

The

HD-20

mounts

just

below

the

two

5"

floppy

disk

drives

in

the

System

Two.

Each

of

the

two

flopPY

disk

drives

is

held

in

its

metal

frame

by

means

of

6-32

screws.

Remove

th€!

two

bottom

retaining

screws

from

each

drive

and

then

reinstall

them

so

that

the

mounting

plate

for

the

HD-20

is

attached

to

the

bottom

of

the

two

floppy

disk

support

housings.

Refer

to

Figure

3.

Plug

the

HD-20

power

cord

into

the

plug

on

the

HD-20.

This

connector

is

designed

so

that

it

can

only

be

connected

one

way.

Now

slide

the

HD-20

onto

the

HD-20

mounting

plate.

Refer

to

Figure

4.

Power

Cable

Connection

To

install

the

power

cable

it

is

necessary

to

remove

the

top

cover

and

the

rear

panel

from

the

System

Two.

Route

the

HD-20

power

cord

along

the

same

pa

th

as

the

floppy

disk

power

cord

and

connect

to

the

power~upply

as

indicated

below.

This

cable

consists

of

six

color

coded

wires

as

follows:

Red
Yellow
Orange
Black
Brown
white

+ 8

volts

d.c.

(3

amp

line

fuse)

-16

volts

d.c.

+16

volts

d.c.

d.c.

common

a.c.

115

volt

tap

on

transformer

a.c.

Neutral

tap

on

transformer

-~

with

the

exception

of

the

brown

wire

this

color

code

is

consistent

with

the

color

coding

used

for

the

System

Two

power

supply.

Red

Wire:

Black

Wire:

Th

ere

d (+8v

d.

c • ) w

ire

s h 0 u 1 d b e

connected

to

the

+

terminal

on

either

of

the

130,000

mfd

capacitors.

This

terminal

will

already

have

one

or

more

red

wires

connected

to

it.

The

black

(d.c.

common)

wire

should

be

connected

to

one

of

the

29000

mfd

capacitor

terminals

where

a

black

wire

is

already

connected.

2

•

In

connecting

the

four

remalnlng

wire

s

note

that

the

connector

on

the

end

of

each

wire

contains

a

male

adaptor.

Once

the

connector

is

plugged

onto

a

post,

the

wire

that

was

originally

plugged

to

that

post

can

be

plugged

onto

the

mail

adaptor.

Yellow

Wire:

The

yellow

(-16v

d.c.)

wire

should

be

connected

to

the

-16

volt

fuse

holder

on

the

side

with

the

yellow

wire

going

to

the

S-IOO

motherboard.

Orange

Wire:

The

orange

(+16v

d.c.)

wire

should

be

connected

to

the

+16

volt

fuse

holder

on

the

side

with

the

orange

wire

going

to

the

S-IOO

motherboard.

white

Wire:

Brown

Wire:

The

whi

te

(a.

c.

neutr

al)

wire

should

be

attached

and

soldered

to

the

main

power

transformer

primary

pin

5

on

8

tap

transformers.

(Use

pin

4

on

older

6

tap

transformers.)

A

black

wire

from

the

system

fan

and

a

whi

te

transformer

wire

are

already

attached

to

this

point.

The

brown

(a.c.

l15v)

wire

should

be

attached

and

soldered

to

the

main

power

transformer

primary

pin

7

on

8

tap

transformers.

(Use

pin

6

on

older

6

tap

transformers.)

A

black

wire

from

the

system

fan

is

already

attached

to

this

point.

This

completes

theSyst

ern

Two

wiring

of

the

power

harness

for

the

HD-20.

Connect

the

signal

cabl

e

coming

f rom

the

HD-20

to

the

WDI-II

being

careful

that

the

cable

marking

stripe

is

positioned

in

the

manner

indicated

on

the

WDI-II.

3

System

Three

Mounting

Procedure

The

HD-20

mounts

in

the

area

where

the

C

and

D

disk

drive

is

normally

located.

The

HD-20

cannot

be

installed

in

a

system

with

two

disk

drives

(four

slots

-

A, B, C,

and

D).

To

mount

the

drive

and

power

cable

it

is

necessary

to

remove

the

top

cover

and

the

rear

panel

from

the

System

Three.

Orient

the

HD-20

with

the

power

supply

cooling

fin

up

and

the

rear

of

the

drive

(part

where

the

signal

cable

is

connected)

facing

you.

See

Figure

5.

With

the

signal

cable

routed

along

the

right

side

of

the

drive,

slide

the

drive

into

the

mounting

area

far

enough

so

that

the

HD-20

power

plug

can

be

connected

through

the

top

opening

in

the

mounting

frame.

NOW,

slide

the

HO-20

forward

until

it

is

approximately

1

1/4"

from

the

front

of

the

mounting

frame

and

attach

the

drive

at

that

point

by

means

of

two

screws

as

shown

in

Figure

5.

The

signal

cable

should

be

routed

to

the

card

cage

following

the

same

path

used

by

the

floppy

disk

signal

cable.

Power

Cable

Connection

To

install

the

power

cable

it

is

necessary

to

remove

the

top

cover

and

the

rear

panel

from

the

System

Three.

Route

the

HD-20

power

cord

between

the

heat

sink

fins

to

the

rear

of

the

system

and

connect

to

the

power

supply

as

indicated

below.

This

cable

consists

of

six

color

coded

wires

as

follows:

'\.

\

..

'"

,,~

~.

\\

Red
Yellow
Orange
Black
Brown
White

+ 8

volts

d.c.

(3 amp

line

fuse)

-16

volts

d.c.

+16

volts

d.c.

d.c.

common

a.c.

115

volt

tap

on

transformer

a.c.

Neutral

tap

on

transformer

with

the

exception

of

the

brown

wire

this

color

code

is

consistent

with

the

color

coding

used

for

the

System

Two

power

supply.

Refer

to

Figure

6.

4

•

ce

Red

wire:

Black

Wire:

Yellow

Wire:

Orange

wire:

White

Wire:

Brown

Wire:

The

red

{+8v

d.c.}

wire

should

be

connected

to

the

+

terminal

on

the

very

large

capacitor

which

is

mounted

vertically

on

the

back

panel.

This

terminal

will

already

have

several

red

wires

connected

to

it.

The

black

(d.c.

common)

wire

should

be

connected

to

one

of

the

terminals

of

the

smaller

capacitors

to

which

a

black

wire

is

currently

attached.

The

other

terminal

of

the

capacitor

will

have

e

it

her

an

0

ran

g e 0

ray

ell

ow

wi

r e

attached.

In

connecting

the

four

rema~n~ng

wires

note

that

the

connector

on

the

end

of

each

wire

contains

a

male

adaptor.

Once

the

connector

is

plugged

onto

a

post,

the

wire

that

was

originally

plugged

to

that

post

can

be

plugged

onto

the

mail

adaptor.
The

yellow

(-16v

d.c.)

wire

should

be

connected

to

the

-16

volt

fuse

hol~er

on

the

side

with

the

yellow

wire

going

to

the

8-100

motherboard.

The

orange

(+16v

d.c.)

wire

should

be

connected

to

the

+16

volt

fuse

holder

on

the

side

wi

th

the

orange

wi

re

going

to

the

5-100

motherboard.

The

white

(a.c.

neutral)

wire

should

be

attached

and

soldered

to

the

main

power

transformer

primary

pin

5

on

8

tap

transformers.

(Use

pin

4

on

older

6

tap

transformers.)

A

black

wire

from

the

system

fan

and

a

whi

te

transformer

wire

are

already

attached

to

this

point.

The

brown

(a.c.

11Sv)

wire

should

be·

attached

and

soldered

to

the

main

power

transformer

primary

pin

7

on

8

tap

transformers.

(Use

pin

6

on

older

6

tap

t

ransfor

mer

s •) A bI ac k

wi

ref

r

om

th

e

system

fan

is

already

attached

to

this

point.

5

This

completes

the

System

Three

wiring

of

the

power

harness

for

the

HD-20.

Connect

the

signal

cabl

e

coming

f rom

the

HD-20

to

the

WDI-II

being

careful

that

the

cable

marking

stripe

is

positioned

in

the

manner

indicated

on

the

WDI-II.

6

_.

~'-

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CONVERTING HD20

TO

STS06 INTERFACE

Summary

The

modifications outlined in

this

Technical Bulletin allow

the

existing20MByte

IMI 5021H

to

be

converted

to

use

the

STS06

Interlace

as

opposed

to

the

1M!

bus

interface.

The

procedure

will

cover

20MByte drives

installedineither

the

HD-20.

or

CS-IH

products.

Completion of

this

modification allows

the

use

of

Cromemeo's new STOC

Controller

Board which

greatly

enhances

the

performance

of

the

drive, plus provides a slightly

larger

capacity

due

to

the

STOC method

of formatting.

Materials

Required

Retrofit

Kit HD21K-A

or

HD21K-B

STOC Disk

Contrcller

Card

Mote: sroc

Card

is

not

included in

upgrade

kits and must be

purchased

separately.

Material List - Kit HD21K-A

(CS-1H)

Technical Bulletin (023-9143)

IMI

5021 ST506 Read/Write Board

(PIN

410-0450)

STOC

Read/Write

Cable

(PIN 519-0191)

STOC Control

and

Status

Gable

(PIN

519-0190)

Power Supply

connector

(PIN 519-0199)

Material

List - Kit HD21K-B (CS-2 & CS-3

with

HD-20)

Technical

Bulletin (023-9143)

IMI

5021 STS06 Reed/Write Board

(PIN

410-0450)

sroc Reed/Write Cable (PIN

519-0195)

STOCControl

and

Status

Gable (PIN 519-0194)

Power Supply

connector

(PIN

519-0201)

023-9143

10.18.84

Procedure

1.

Turn

off

the

power

to

L'1e

system, and remove

the

line

cord

before

proceeding.

2.

Remove

the

WDI-II

card

and

the

associated

data

cable

from

the

system

(CS-l,2

OR

3).

3.

Remove

the

HD20

module from Systems

Two

or

Three

by

following

the

instructions

in

the

HD-20 manual (023-6042).

4. Remove

the

hard

disk drive from

the

CS1H by following

the

front

panel

disassembly

instructions

in

the

System

One manual (023-6022).

5. For

CS-IH

systems,

replace

the

power supply

cable

with

the

new power

cable

provided (519-0199) and proceed

to

Step

9.

.

6. To

upgrade

an

HD20

module, remove both

the

HD20

power supply and

the

IMI 5021H

drive

by following

the

instructions

in

the

HD20

manual

(023-6042

).

.'

7. De-solder and remove

the

disk drive power

cable

from

the

HD20

power

supply board

connector

J2.

8.

Connect

the

new disk drive power supply

cable

(519-0201) by soldering

the

purple

wire

(Cable Pin 1)

to

Connector J2, Pin 1 on

the

power supply

board.

Connect

black

wire (Gable Pin 3)

to

Connector

J2,

Pin 2 on

the

•

power supply board. Connect

the

second

black

wire

(Cable Pin 2)

to

Connector

J2,

Pin 4 on

the

power supply board.

Connect

the

red

wire

(Cable Pin 4)

to

Connector

J2, Pin 6 on

the

power supply

board.

caution:

Use extreme

care

when performing

the

following

steps.

Failure

to

follow

the

recommended procedure

exactly

could

cause

damage

to

the

drive.

9.

Referring

to

figure 1,

separate

Read/Write

cable

from existing WDI-II

Read/Write board using a

flat

bladed screw

driver

while board is

still

attached

to

the

drive housing. Remove

three

stand-offs

securing

the

existing

WDI-Il Read/Write board

to

the

drive housing. CarefUlly

lift

the

WDI-II Read/Write board away from Motor Control board

connector

and

tilt

the

board away from

the

drive housing.

10. CarefUlly

disconnect

stepper

motor

cable

from

the

WDI-II Read/Write

board.

11. To

install

the

new ST506 Read/Write Board,

connect

the

stepper

motor

cable.

Guide

the

Read/Write board

into

the

drive housing,

carefully

lining

up

the

Motor Control board

connector

with

the

socket on

the

ST506

Read/Write board. Secure

the

ST506 Read/Write board with

the

three

stand

offs.

CarefUlly

reconnect

the

Read/Write

cable

with a

flat

blade

screw

driver

after

the

boardisattached

to

the

base.

This

techniqueisrequired

to

prevent damaging

the

flat

cable

or

connector

contacts.

•

2

12.

'The

STS06

interface

cardisfactory

set

to

respond

as

drive 0 (DS-1). See

figure

3 for

the

jwnper

settings

to

cause

the

drivetorespond

other

than

drive

O.

Place

a

jumper

in

the

desired

location

after

removing

the

existing

jumper

located

between

pins

1 and

16.

13.

Re-install

the

drive

into

the

CSIH

or

HD20

cabinet.

Route

the

Read/Write

cable

and

the

Control

Status

cable

as

the

WDI

II

data

cable

had been

routed.

See figure 2

for

cable

connections.

Install

the

STDC

Controller

board and

connect

the

Read/Write and

control

cables.

ConneCt

this

board

last

in

the

priority

chain

as

described

in

the STDC Manual.

This

completes

the

upgrade

of

the

un

502lE

drivetothe

ST506

configuration.

Perform

the

checkout

procedures

for

an

STDC

system

as

outlined

in

the

STOC

Manual

(PIN

023-2031).

3

;:,:-.;t~

l

(",

I

/ MOTOR

COtfrROL

I BOARD CONNECTOR

STEPPER

MOTOR

READ/WRITE BOARD

FRAME

Figure

1:

READ/WRITE

BOARD REMOVAL

AND

REPLACEMENT

4

CONTROL

AND

STATUS

CABLE

J1

Pigure

2:

INTERPACE

CONNECTOR PHYSICAL LOCATIONS

1M}

50218

DRIVE

5

OS-4 _
OS-3

OS-2
OS-1

OS1

58

-

-

I\\...

RADIAL

OPTION

57

9-

~8

10-

=.7

RES'ERVED

}CUSTOME~

56

,

OPTIONS

RESERVED

$5

11

.....

:=6

....

12

~

~5

RESERVED

$4

}D~IV~CTl~

53

13

~

~4

'

S2

14

_

:=3

51

15

_

_2

16-

-1

JUMPERS

~

r--------

D

OS1

TERMINATOR

COMPONENT SIDE

0

J

J3

1

....

J1 J2

Read/Write Circuit Board

Figure

J:

DRIVE SELECTION OPTIONS

IMI5021B

6