Mountain Computer Expansion Chassis Operating Manual

Expansion

Chassis

Operating Manual

Copyright

(C) 1982

Mountain Computer

Inc.

Manual Number

11-00166-03

_ab

e

of

Contents

Introduction

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

i

Chapter 1 --

Installation

What

You

~1eed

......••....

,.

.•......••..••••••.••.•.....

1-1

Unpa

cking

.•.

""

..••.•.•..•...•

"

.•.• " ...

G

••••••••

e

••••••

1-1

Packing

List

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

1-2

Before

Plugging

In

••••••••••••••••••••••••••••••••••••

1-2

1-

2

1-

3

The

B 0 X

••• " •••••••••••••••••••••••••••••••••••

"

•••••••

The

Mother

Board

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

.

The

Interface

Card

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

1-4

Interface

C

ard

Jumper

and

Switch

Posi

tioning .......... 1-6

pp 1

••••••••••••••••••••••••••••

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

1-6

PP2

••

PP3

••

PP4

••

SW1

...

.

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

1-6

.

.•.•..........

1-6

.

.....

........

" 1-7

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

1-7

The

50

Pin

Ribbon

Cable

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

1-7

The

Small

16

Installing

the

Plugging

Into

Pin

Ribbon

Interface

Cable

•••••••.•••••••••••••••••

1-8

Card

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

1-9

the

Apple

............................•..

1-9

Attaching

the

Power

Transformer

••••

Installing

Other

Peripheral

Cards

••

.

.....•..

1-

11

...•.••••

1-12

If

You

Are

Using

Pascal

• • • • • • • • • • • • • • • • • • • • • • • • • "

•••

1 - 1 2

The

Last

Steps

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

1-12

Multiple

Expansion

Chassis

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

1-12

The

P P 1

Jumper

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

1-13

Multiple

Interface

Cards

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

1-13

Chapter 2 --

Operating

the

Expansion

Chassis

Select

or

Deselect

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

2-

Swi

tching

Modes

From

BASIC

or

the

Moni

tor

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

2-2

Integer

BASIC

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

2-2

Applesoft

BASIC

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

2-3

The

Monitor

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

2-3

Switching

Modes

From

Pascal

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

2-4

The

Software

Com

man

d s T a b 1 e

•••••••••••••••••••••••••••

2-

5

Some

Helpful

Tips

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

2-6

Appendix A --

Installation

Considerations

Processors

Verses

Peripherals

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

A-1

Video

Cards

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

A-1

Jumpers

to

the

Mother

Board

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

A-1

S e 1 e c t a b 1 e S 1 o t Ba n k s

•••••••••••••••••••••••••••••••••

A - 1

System

Configuration

Examples

•••••••••••••••••••••••••

A-2

Some

Ideal

Chassis

Peripherals

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

A-

6

-

Table

of

Contents

(Continued)

Appendix B --

Trouble

Shooting

It

Doesn't

Work

At

All

•••••

·

~

••••••••••••••••••••••••••

B-1

The

Hardware

Select/Deselect

Button

Doesn't

Work •••

•••

B-1

Replacing

the

Fuse

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

B-1

Identifying

A

Blown

Fuse

••••••••••••••••••••••••••••••

B-2

The

Right

Fuse

For

the

Job

••••••••••••••••••••••••••••

B-2

Installing

the

New

Fuse

•••••••••••••••••••••••••••••••

B-3

If

the

Fuse

Repeatedly

Blows

••••••••••••••••••••

••••••

B-3

When

to

Send

It

Back

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

B-3

Appendix C --

Installation

Summary

CHAPrER

1

Chapter 1

INSTALATION

IN

STALLA'HO~

The

Expansion

Chassis

is

easy

to

install,

but

take

care

to

install

it

correctly.

The

directions

for

installing

your

Expansion

Chassis

appear

in

this

chapter

as

step

by

step

instructions.

If

you

follow

all

the

directions

in

this

chapter

carefully,

you

should

have

no

trouble

installing

the

Chassis

.

If

you

are

familiar

with

the

installation

procedure,

you

may

want

to

refer

to

the

brief

installation

summary

in

Appendix C

instead

of

rereading

this

entire

chapter.

However,

if

this

is

your

first

time

installing

an

Expansion

Chassis,

read

this

chapter

thoroughly

and

carefully,

following

all

the

instructions

as

you

read.

What

You

Need

To

use

your

Expansion

Chassis

you

need

only

an

Apple

II

or

II

Plus

.

All

Mountain

Computer

peripherals

and

many

other

well

designed

peripheral

cards

will

work

in

the

Expansion

Chassis.

For

information

on

installation

considerations

and

limitations

for

the

Expansion

Chassis,

see

Appendix A

in

this

manual.

An

optional

item

you

may

find

useful

is

an

IC

puller,

a

small

tweezer-like

device

used

to

remove

IC's.

You

can

probably

get

one

at

your

local

computer

or

electronics

store.

You'll

find

that

installing

the

Expansion

Chassis

is a little

easier

if

you

have

an

IC

puller,

but

you

don't

have

to

have

one.

Unpacking

The

Expansion

Chassis

was packed

in a specially

designed

carton

to

insure

its

safety

during

shipping.

The

smaller

box

in

which

you found

this

manual

contains

items

necessary

for

installation

of

the

Expansion

Chassis.

The

Expansion

Chassis

itself

was

packed

beneath

the

smaller

box and

suspended

between

styrofoam

supports.

As

you

unpack

the

Expansion

Chassis

notice

how

it

was

packed,

and

save

the

packing

materials.

At

some

time

you

may

need

to

repack

your

Expansion

Chassis,

for

example,

if

you

wish

to

ship

it

for

servicing.

1-1

-

CHAPTER

1

INSTALLATION

Packing

List

As

you

unpack

your

Expansion

Chassis,

check

that

the

following

items

are

included:

•

Expansion

Chassis

A

smaller

box

containing

the

following:

•

Manual

•

Warranty

Card

•

Power

transformer

•

Expansion

Chassis

Interface

Card

•

Large

ribbon

cable

with

a 50

pin

connector

on

each

end

•

Small

ribbon

cable

with

a 16

pin

header

on

each

end

If

any

of

these

items

are

missing

from

your

package,

see

your

dealer.

NOTE

As

you

are

unpacking,

be

careful

not

to

drop

the

Expansion

Chassis

or

bump

it

against

a

hard

surface.

A

sharp

impact

can

damage

the

components

inside

the

Expansion

Chassis.

Before

Plugging

In

Before

you

begin

installing

the

Expansion

Chassis,

lay

all

the

necessary

items

within

easy

reach.

This

will

help

make

the

installation

procedure

go

smoothly

and

quickly.

In

addition,

make

sure

the

Apple's

power

is

turned

OFF.

This

is

important!

If

you

neglect

to

turn

the

power

off,

you

may

damage

the

Apple

and/or

the

Expansion

Chassis.

It's

a good

idea

to

familiarize

yourself

with

the

various

parts

of

the

Expansion

Chassis

before

you

actually

begin

installatiop.

Let's

take a look

at

these

parts

now.

The

Box

The

Expansion

Chassis

itself

is

housed

in a buff-colored

metal

box.

The

front

side

of

the

box

is

black

and

is

called

the

face

plate.

On

the

back

of

the

Expansion

Chassis

you

will

find

some

narrow

notches.

These

notches

will

allow

peripheral

card

cables

to

extend

from

the

chassis.

1-2

C

HAP'TEJi

~

JH3TAL

LATI

ON

As

you

face

the

front

of

the

Expansion

Chassis

you

will

see

on

the

right

edge

of

the

face

plate

two

LED

lights,

one

green

and

one

red,

and a square

shaped

black

button.

The

green

light

indicates

whether

the

Expansion

Chassis

is

powered

up,

and

the

red

light

indicates

whether

the

Expa

nsion

Chassis

is

selected.

The

button

is

used

to

select

and

deselect

the

Expansion

Chassis.

Remove

the

top

cover

of

the

Expansion

Chassis.

The

Expansion

Chassis'

cover

is

removed

in

much

the

same

way

as

the

Apple's.

Lift

the

back

edge

of

the

cover

at

the

middle

until

the

rear

fastener

pops

apart.

Then

slide

the

cover

backward

until

it

comes

free.

CAUTION

Make

sure

you

are

not

wearing

or

holding

any

metal,

such

as a ring

or a paper

clip,

on

your

hands

during

the

installation

procedure!

If

the

metal

touches

parts

of

the

power

supply

you

could

get a shock.

The

Mother Board

Because

the

Expansion

Chassis

is

now

empty,

you

have a perfect

opportunity

to

examine

the

mother

board

in

detail.

Following

is

a

labelled

diagram

of

the

Expansion

Chassis

mother

board.

+

I"

'

L_

'-----

'---

'-----

~

~

13]

TPOGIIO

c;,

Mountain Computer

©1

980

I

HCORPORATI

2 3

4

5

6

7

-

...

_.,,

EXPANSION

CHASSIS

·o·

. .

+

··-

-:-

0616811

Figu

r e 1 The

Mother Boa

rd

1-3

••

-

CHAPTER

1

INSTALLATION

Notice

the

twin

cylinders

near

the

left

edge

of

the

Chassis.

These

are

capacitors.

Directly

to

the

left

of

the

cylinders

is

a

clear

glass

fuse.

In

front

and

to

the

right

of

the

cylinders

is

a

short,

round,

black

transformer

with

wires

extending

from

it

to

the

mother

board.

The

components

in

this

area

of

the

mother

board

comprise

the

power

supply.

Do

not

touch

anything

in

this

area

(unless

you

are

replacing

the

fuse)

even

when

the

power

is

off,

or

you

may

get

an

electrical

shock.

NOTE

If

the

Expansion

Chassis

power

supply

is

over-

loaded,

the

fuse

will

blow.

Replace

it

with

a

BUSS

MDX

1-1/2

amp.

fuse,

which

you

can

get

at

an

electronics,

hardware

or

autoparts

store.

Detailed

instructions

on

identifying

and

re-

placing

a blown

fuse

can be found

in

Appendix

B

--

Trouble

Shooting.

Along

the

back edge

of

the

Expansion

Chassis

are

eight

peripheral

card

slots,

numbered

from 0 to

7.

These

slots

behave

almost

exactly

like

peripheral

slots

in

the

Apple.

In

the

left

rear

corner

of

the

mother

board

is a 50

pin

"male"

connector

labelled

"J1".

Notice

the

white

"1"

at

the

lower

right

edge

of

the

connector

and

the

"25"

at

its

upper

right

edge.

This

is

where

the

50

pin

ribbon

cable

will

be

attached.

The

Interrace

Card

The

Expansion

Chassis

Interface

Card

(Figure

2)

plugs

into

one

of

the

I/0

slots.

1-4

CHAPTER

1

INSTALLATION

Figure

2

The

E

The

Int

xpans·

erface

c

periphe

1on

Chassi

ard

edge

ral

cards

s

Interfac

su

•

There

are • Not

ice

that

. e

Card

is

d.

rface

of

the

also

severa

"~

t

has a 50 7 ffe

rent

fr

~~

ugged

in

to

component

s . dl

Jumpers"

d .

p>n

co

nne c to

om

most

1

rough

"PP4"

~ne

of

each

1 :

of

the

card1stributed

ac r on

one

ocated

at

th

1n

additio

o

the

sock

• Two

pin

ju

ross

the

e

top

of

th

n a

eight

.

et

sets

lab

mpers

are

e

card.

un1t

switch

elled

"PP1"

pack

(SW1)

.

1S

1-5

CHAPTER

1

INSTALLATION

Interface

Card Jumper and

Switch

Positioning

The

following

paragraphs

describe

the

Expansion

Chassis

features

that

are

controlled

by

Jumper/Socket

sets

PP1

through

PP4

and

switch

pack

SW1.

PP1

Jumper/Socket

Set

PP1

(Figure

2)

allows

the

user

to

select

(or

deselect)

any

of

up

to

four

Expansion

Chassis,

via

soft-

ware.

It

selects

the

software

data

pattern

that

will

enable

the

Expansion

Chassis

associated

with

this

interface

card.

For

example,

if

the

jumper

is

placed

in

socket

FE

then

a

write

of

"FE"

to

location

C020-C02F

will

activate

the

Expan-

sion

Chassis

(writing

an

unused

pattern,

or a pattern

for

another

chassis

will

turn

this

chassis

off).

NOTE

Jumper/Socket

set

PP4

can

disable

this

software

select

feature.

The

setting

of

the

PP1

jumper

is

important

if

you

will

be

using

more

than

one

Expansion

Chassis

in a single

system.

PP2

CAUTION

Only

one

chassis

may

be

accessed

(via

software)

at a time.

If

two

Expansion

Chassis

have

the

PP1

jumper

in

the

same

socket

then

the

system

will

try

to

access

two

sets

of

peripherals

in

the

same

I/0

slots.

The PP2

Jumper/Socket

set

selects

whether

the

Apple

or

the

Expansion

Chassis

has

access

to

the

C800

through

CFFF

Apple

memory

locations.

The "A"

position

locks

the

C800

space

to

the

Apple.

The

"M"

position

dedicates

it

to

the

Expansion

Chassis.

The

"P"

position

allows

the

c8oo

space

to

be

used

by

the

software

selected

user.

PP3

The

PP3

Jumper/Socket

set

determines

whether

the

Apple

or

the

Expansion

Chassis

will

be

selected

after

the

Apple

RESET

key

has

been

pressed.

The "P"

position

allows

the

Apple

to

be

selected

during

power-up

only,

the

Expansion

Chassis

will

be

selected

if

the

RESET

key

is

pressed.

The "R"

jumper

position

selects

the

Apple

for

power-up and

RESET.

1-

6

CHAPTER

1

INSTALLATION

PP4

The PP4

Jumper/Socket

set

enables

or

disabes

the

PP1

fun-

ction.

The "E"

position

allows

the

user

to

write

to

the

C020

through

C02F

space

(cassette

memory

locations)

to

enable

or

disable

the

Expansion

Chassis.

The

"D"

position

will

disable

all

writes

to

the

C020

through

C02F

locations.

Only

the

Expansion

Chassis

switch

will

change

the

state

of

the

chassis.

SW1

Switch

pack

SW1

contains

eight

switches,

one

for

each

I/0

slot

in

the

Expansion

Chassis.

The

slots

associated

with

each

switch

are

as

follows:

1 =

Slot

0

3 =

Slot

2

5

=

Slot

4

1 =

Slot

6

2

=

Slot

1

4

=

Slot

3

6 =

Slot

5

8 =

Slot

1

If a switch

is

ON

it

locks

the

selected

Device

Select-I/O

Select

slot

address

ranges

to

the

Apple.

For

example,

if

SW1-2

is

placed

in

the

ON

position,

then

I/0

slot 1 in

the

Apple

is

always

enabled

and

the

Expansion

Chassis

slot 1 is

disabled.

Regardless

of

which

unit

is

selected.

The

50

Pin

Ribbon Cable

The

large

50

pin

ribbon

cable

that

came

with

your

Expansion

Chassis

is

for

attaching

the

Chassis

to

the

Expansion

Chassis

Interface

Card.

This

cable

has

two

50

pin

"female"

connectors,

one

on

each

end,

which

will

plug

into

the

50

pin

connectors

in

the

Expansion

Chassis

and

on

the

Expansion

Chassis

Interface

Card.
It

doesn't

matter

which

end

of

the

50

pin

ribbon

cable

is

plugged

into

the

Expansion

Chassis

and

which

into

the

Expansion

Chassis

Interface

Card.

However,

the

connectors

- on

the

cable

must

be

oriented

in a particular

way.

Each

pin

and

socket

in

each

connector

is

assigned

a number from 1

to

50.

It

is

important

to

plug

the

connectors

in

so

that

pin

number 1 is

plugged

into

socket

number 1.

If

the

connectors

are

plugged

in

the

wrong way,

neither

your

Apple

or

the

Expansion

Chassis

will

be damaged,

but

the

Expansion

Chas~is

will

not

work.

The

connectors

on

the

ribbon

cable

each

have a

white

triangle

in

one

corner,

which

points

to

socket

1.

The

colored

stripe

along

one

edge

of

the

cable

is

on

the

same

edge

as

socket

number

1.

These

markings

will

help

you

orient

the

cable

correctly.

As

indicated

earlier,

labels

indicating

pins

1 and 25

are

located

next

to

the

50

pin

connector

inside

the

Expansion

Chassis.

The

50

pin

connector

on

the

back

edge

of

the

Expansion

Chassis

Interface

Card

has

no

such

labels,

but

pin 1 is

in

the

bottom

corner

(next

to

the

gold

plated

peripheral

slot

connectors.)

1-7

.-

CHAPTER

1

INSTALLATION

'

First

plug

the

ribbon

cable

into

the

Expansion

Chassis

Interface

Card

(refer

to

Figure

3)

so

that

socket 1 on

the

cable

corres-

ponds

to

pin

1 on

the

Expansion

Chassis

Interface

Card.

The

red

stripe

and

the

white

triangle

should

be

at

the

bottom

edge

of

the

card.

Now

plug

the

other

end

of

the

ribbon

cable

to

the

connec-

tor

inside

the

Expansion

Chassis

so

that

pin 1 in

the

Chassis

is

plugged

into

socket

1 on

the

cable.

The

white

triangle

should

be

lined

up

with

the

pin 1 label

next

to

the

connector.

Check

that

the

red

stripe

is

toward

you

as

you

face

the

front

of

the

Chassis.

Check

the

connections

on

both

the

Expansion

Chassis

Interface

Card

and

the

Expansion

Chassis

to

make

sure

the

connectors

are

firmly

attached.

The

following

illustration

shows

the

correct

arrangement

of

the

Expansion

Chassis,

50

pin

ribbon

cable,

and

Expansion

Chassis

Interface

Card.

39731

Figure

3

50

Pin

Ribbon

Cable

Installed

The

Small

16

Pin

Ribbon Cable

One

end

of

the

16

pin

ribbon

cable

will

plug

into

the

IC

socket

labelled

"J2"

on

the

Expansion

Chassis

Interface

Card,

and

the

other

end

of

the

cable

will

plug

into

an

IC

socket

in

the

Apple's

mother

board.

As

with

the

50

pin

ribbon

cable,

it

is

important

that

pin

1 on

the

cable

correspond

to

pin

1 on

the

IC

socket.

1-8

CHAPTER

1

INSTALLATION

The

connectors

on

each

end

of

the

16

pin

ribbon

cable

are

marked

at

pin 1 to

make

installation

easier.

The

particular

mark on

the

c

onnectors

will

vary,

depending

on

the

cable

you

have.

Connectors

will

be

marked

with

either a dot,

arrow,

or a small

notch.
To

locate

pin 1 on

the

J2

socket,

lay

the

Interface

Card

so

that

the

component

side

is

facing

up and

the

Mountain

Computer

label

is

right

side

up.

When

the

Interface

Card

is

oriented

this

way,

pin

1 on

the

J2

socket

is

in

the

lower

left

corner.

Now

plug

the

16

pin

connector

into

the

J2

socket

so

that

the

mark

indicating

pin 1 corresponds

to

pin 1 on

the

J2

socket.

Check

that

the

connector

is

firmly

seated

in

the

socket

and

that

none

of

the

pins

are

bent.

The

next

section

will

tell

you

how

to

plug

the

16

pin

connector

into

the

Apple.

Installing

the

Inter~ace

Card

The

Expansion

Chassis

Interface

Card

can

be

plugged

into

any

Apple

slot

including

slot

#0

if

you

are

not

using

the

Apple

Language

System.

If

you

are

using

the

Apple Language

System,

the

Language

Card

must

be

plugged

into

the

Apple's

slot

#0,

and

the

Expansion

Chassis

Interface

Card

plugged

into

another

Apple

slot.

Because

Pascal

is a slot-dependant

language

there

are

limitations

on

its

use

in

conjunction

with

the

Expansion

Chassis.

For

now,

use

slot

#7

for

your

Expansion

Chassis

Interface

Card

if

you

are

using

Pascal.

(The

Pascal

slot

issue

will

be

discussed

in

detail

in

the

section

called

"If

You

Are

Using

Pascal

••• " later

in

this

chapter.)

If

you

are

not

using

Pascal,

any

Apple

peripheral

slot,

including

slot

#0,

will

work

equally

well.

Plugging

Into

the

Apple

It

is

easier

to

install

the

Expansion

Chassis

Interface

Card

if

you

temporarily

remove

all

other

peripheral

cards

from

the

Apple.

CAUTION

Make

sure

your

Apple

is

turned

OFF

before

you

remove

or

insert

anything!

Or

you

may

damage

the

the

Apple

and/or

the

Interface

card.

1-

9

-

CHAPTER

1

INSTALLATION

Plug

the

Expansion

Chassis

Interface

Card

into

the

slot

you

have

chosen.

Arrange

the

large

50-pin

ribbon

cable

so

that

it

passes

through

the

opening

with

the

built-in

strain

relief

on

the

rear

of

the

Apple's

case.

Make

sure

the

card

is

seated

firmly

and

is

plugged

all

the

way

in

the

slot.

If

the

card

is

not

properly

plugged

in,

your Apple

may

be damaged when you

turn

the

power on.

To

complete

installation

of

the

Expansion

Chassis

Interface

Card

you

must

remove an IC from

the

Apple's

mother

board

and

plug

the

Expansion

Chassis

Interface

Card's

small

ribbon

cable

into

the

empty

socket.

The IC

you

must

remove

is

the

third

one

from

the

right

in

row F,

immediately

to

the

right

of

the

large

IC

labelled

"ROM

D0

11

• (Look

along

the

left

edge

of

the

Apple's

mother

board

for

the

letter

labels

for

each

row.)

This

IC

is

number F12. The

following

photographs

(Figure

4)

show

the

IC's

position

in

the

Apple.

Figure

5 IC Removal

Notice

the

small

notch

on

the

edge

of

the

IC

that

is

closest

to

the

keyboard.

If

you

ever

wish

to

replace

this

IC, you

must

plug

it

in

so

that

the

notch

is

toward

the

keyboard.

Gently

remove

the

IC

by

sliding

the

edges

of

the

IC

puller

(or

your

fingernails)

under

it,

as

shown

in

the

photograph

above,

and

slowly

pulling

straight

up.

Be

careful

not

to

bend

the

pins

on

the

IC.

When

the

IC

has

been

removed,

label

it,

and

store

it

away

in a safe

place.

If

you

ever

wish

reconfigure

your

system

without

the

Expansion

Chassis,

you

will

need

to

replace

this

IC.

One

edge

of

the

16

pin

connector

on

the

free

end

of

the

small

ribbon

cable

is

marked

with a notch

or a dot.

Carefully

plug

the

connector

into

the

vacant

socket

so

that,

as

you

face

the

Apple

keyboard,

the

marked

edge

is

toward

the

front.

If

there

are

other

peripheral

cards

plugged

into

your

Apple,

thread

the

ribbon

cable

under

them.

1-10

CHAPTER

1

INSTALLATION

When

the

cable

has

been

plugged

in,

inspect

the

socket

to

make

sure

no

pins are

sticking

out.

(That's

what

happens

if

you

try

to

force

bent

pins!)

If

pins

are

sticking

out,

remove

the

connector,

carefully

straighten

the

pins,

and

repeat

the

plugging

in

procedure.

Following

is

an

illustration

of a correctly

installed

Expansion

Chassis

Interface

Card.

Figure

5

Correctly

Installed

Interface

Card

Attaching

the

Power Transformer

The

black

box

with

two

cords

extending

from

its

opposite

ends

is

a

power

transformer.

One

of

the

cords

has a socket

that

will

plug

into

the

Expansion

Chassis.

The

other

cord

plugs

into

an

ordinary

wall

outlet.

NOTE

DO

NOT

plug

the

power

transformer

into

the

wall

yet!

Plugging

the

power

transformer

into

the

wall

is

one

of

the

very

last

steps,

and

for

good

reason.

On

the

back

edge

of

the

Expansion

Chassis

is a plug

that

the

power

transformer

socket

will

attach

to.

Plug

the

power

transformer

connector

cord

into

the

E-xpansion

Chassis.

If

you

have

trouble

plugging

it

in,

it

may

be

backwards.

If

so,

turn

it

around

and

try

again.

1- 11

CHAPTER

1

INSTALLATION

Installing

Other

Peripheral

Cards

Now

you

are

ready

to

install

your

other

peripheral

cards.

With

15

slots

available,

you can

configure

your

system

in a variety

of

ways.

You

will

find

that

you

have

the

same

slot

freedom

in

the

Expansion

Chassis

that

you have

with

the

Apple.

That

is,

you

can

plug

peripheral

cards

into

any

slot

you

wish

except

slot

#0,

which

has

limitations.

Slot

#0

in

the

Expansion

Chassis

has

the

same

limitations

as

Apple's

slot

#0.

If

You

Are

Using

Pascal

••••

Pascal,

as

implemented

on

the

Apple

II,

is a slot-dependant

language.

This

means

that

Pascal

expects

certain

peripheral

slots

to

contain

only

certain

types

of

peripherals.

For

example,

with

the

Pascal

System

slot

#1

can

only

contain

a

printer

or

other

similar

output

device.

The

Last

Steps

If

you

have

followed

all

the

directions

in

this

chapter

so

far,

you

are

now

ready

to

complete

the

last

installation

steps.

These

steps

are

the

same

no

matter

what

system

configuration

you

are

using.

Replace

the

Expansion

Chassis

top

cover

•.

Slide

the

cover

into

place

and

press

on

the

rear

corners

until

the

fasteners

snap

together.

The

remaining

step

is

to

plug

the

Expansion

Chassis

power

transformer

into a grounded

electrical

outlet.

If

you

are

using

more

than

one

Expansion

Chassis

make

sure

each

power

transformer

is

plugged

in.

Multiple

Expansion

Chassis

Each

Expansion

Chassis

must

be

connected

to

an

Expansion

Chassis

Interface

Card,

which

must

be

plugged

into

an

Apple.

You

can't

use

one

Expansion

Chassis

Interface

Card

for

more

than

one

Expansion

Chassis.

You

cannot

plug

an

Expansion

Chassis

Inter-

face

Card

into

an

Expansion

Chassis,

the

Chassis

will

not

work.

If

you

are

using

more

than

one

Expansion

Chassis

with

one

Apple,

you

will

need

to

reset

the

PP1

jumpers

on

the

Expansion

Chassis

Interface

Cards

for

every

additional

Chassis

you

install.

By

setting

the

PP1

jumpers

you can

determine

exactly

which

data

bit

will

select

which

Chassis.

1-1 2

CHAPTER

1

INSTALLATION

The

PP1

Jumper

If

you

examine

the

PP1

jumper

socket

closely

(Figure

2),

you

will

see

that

it

is

divided

into

four

possible

jumper

positions.

Each

position

represents

a

different

setting,

and

each

setting

is

labelled

with a silk

screened

hexadecimal

number

at

the

bottom

of

the

socket.

You

must

change

the

PP1

jumper

settings

so

that

each

Expansion

Chassis

uses a different

one.

We

recommend

that

you

use

the

following

settings

for

your

Chassis.

o

first

Chassis

FE

o

second

Chassis

FD

o

third

Chassis

FB

o

fourth

Chassis

F7

The

PP1

jumpers

are

all

set

at

position

F7

at

the

factory.

One

Expansion

Chassis

can

be

left

at

this

setting,

but

the

others

must

be changed.

To

change

the

PP1

jumper

setting,

you

must

move

the 2 pin

jumper

to a different

position.

Carefully

remove

the

jumper

by

pul

ling

it

straight

out

of

the

connector

(DON'T

BEND

THE

PINS).

Plug

it

into

the

position

you

have

chosen.

Change

the

PP 1

jumper

set-

tings

for

each

additional

Expansion

Chassis,

using a different

setting

each

time.

Multiple

Interface

Cards

Now

you

are

ready

to

plug

the

Expansion

Chassis

Interface

Cards

into

the

Apple.

One

Expansion

Chassis

Interface

Card

should

be

installed

exactly

as

described

in

the

section

that

appears

earlier

in

this

chapter,

called

"Plugging

In".

The

other

Expansion

Chassis

Interface

Cards

are

a

little

simpler

to

install.

Additional

Expansion

Chassis

Interface

Cards

don't

require

the

16

pin

ribbon

cable.

(When

installing

them,

omit

the

steps

in

which

you

attach

the

ribbon

cable

to

the

Expansion

Chassis

Interface

Card

and

plug

the

ribbon

cable

into

the

Apple's

mother

board.)

Simply

plug

these

Interface

Cards

into

the

peripheral

slot

you

have

chosen.

1-

13

,

J

CHAPTER 2 OPERATING

THE

EXPANSION CHASSIS

Chapter 2

OPERATING

THE

EXPANSION

CHASSIS

Your

Expansion

Chassis

should

now

be

fully

installed

and

ready

to

use.

To

turn

on

your

Expansion

Chassis,

turn

on

the

Apple.

The

Expansion

Chassis

power

supply

turns

on

or

off

when

it

senses

that

the

Apple

has

been

turned

on

or

off.

The

Expansion

Chassis

will

not

receive

any power

unless

the

Apple

is

turned

on.

Software

that

works

with

the

Apple

II,

including

Pascal

programs,

should

work

with

the

Expansion

Chassis.

However, you

may

wish

to

enhance

the

Expansion

Chassis'

usefulness

by

customizing

your

software

to

make

the

most

of

the

additional

peripheral

slots.

Select

and

Deselect

The

Expansion

Chassis

can

be

in

either

select

mode

or

deselect

mode.

Switching

back

and

forth

between

these

conditions

allows

you

to

alternate

between

the

peripheral

slots

in

the

Apple

and

those

in

the

Chassis.

When

the

Expansion

Chassis

is

deselected,

the

Apple's

peripheral

slots

are

selected.

That

is,

if

you

refer

to

slot

#4,

the

peripheral

card

in

the

Apple's

slot

#4

will

respond.

When

the

Expansion

Chassis

is

selected

and

you

refer

to

slot

#4,

the

peripheral

card

in

the

Chassis'

slot

#4

will

respond.

NOTE

This

is

generally

true,

however

SW 1 switch

5

(refer

to

Chapter

1)

can

override

this

feature.

PP4

can

also

disable

this

feature.

Many

peripherals

require

access

to

the

Apple

C800

space,

the

PP2

jumper

may

be

set

to

the

P

position

and

access

can

be

selected

via

software.

The

current

mode

of

the

Expansion

Chas-

sis

is

indicated

by

the

two

lights

on

the

Chassis

faceplate.

The

green

light

indicates

that

the

power

is

on

(i.e.

the

Chassis

is

properly

installed

and

the

Apple

is

turned

on).

The

red

light

indicates

that

the

Expansion

Chassis

is

selected.

When

the

Expansion

Chassis

is

first

turned

on,

only

the

green

light

should

go

on,

indicating

that

the

power

is

on

but

the

Chassis

is

deselected.

NOTE

If

the

front

panel

lamps

(green

and

red)

are

on,

and

the

Apple

will

not

operate

properly

then

the

50-pin

ribbon

cabl e

may

be

improperly

installed.

Refer

to

Chapter 1 for

install-

ation

information.

2

-1

CHAPTER 2 OPERATING

THE

EXPANSION

CHASSIS

There

are

two

ways

to

change

the

Expansion

Chassis'

mode.

The

simplest

method

is

to

press

the

black

button

on

the

face

plate

below

the

green

and

red

lights.

When

you

do

this,

the

red

light

comes

on,

indicating

that

the

Expansion

Chassis

is

selected.

Pressing

the

button

again

causes

the· red

light

to

go

off,

indicating

that

the

Chassis

is

deselected.

You

can

switch

modes

with

this

button

at

any

time.

NOTE

Pressing

the

button

while

software

is

being

executed

may

cause

your

software

to

behave

unpredictably.

It

is

often

more

convenient

to

switch

the

Expansion

Chassis'

modes

through

software.

The

exact

method

for

switching

modes

through

software

depends on

the

computer

language

you

are

using.

The

following

sections

present

the

software

commands

for

selecting

and

deselecting

the

Expansion

Chassis.

CAUTION

Use

of

the

cassette

port

when

the

Expansion

Chassis

is

connected

to

the

system

i s

not

recommended. The

Expansion

Chassis

select/de

-

select

software

uses

the

cassette

port

ad-

dress.

Use

of

this

software

address

does

not

interfere

with

the

normal

operation

of

the

Apple

system

(cassette

pl~yer

disconnected.)

Connection

of a cassette

recorder

(or

any

device)

to

this

port,

will

cause a device

conflict

during

cassette

record

or

playback

operations.

If

the

cassette

port

must

be

used,

set

the

PP4

jumper

to

the D position.

Switching

Modes

From

BASIC

or

the

Monitor

If

you

are

using

Integer

BASIC,

Applesoft

BASIC,

or

the

Monitor,

switching

the

Expansion

Chassis

from

mode

to

mode

is

simply

a

matter

of

inserting

a

value

into a memory

location.

This

can

easily

be

done

either

in

immediate

execution

mode

or

from

a

program.

Integer

BASIC

To

select

the

Expansion

Chassis

from

Integer

BASIC,

simply

type

the

command

POKE

-16352,254

The

red

light

on

the

Expansion

Chassis'

face

plate

will

then

come

on

to

indicate

that

the

Chassis

is

selected.

2-2

CHAPTER 2 OPERATING

THE

EXPANSION

CHASSIS

This

command

only

selects

an

Expansion

Chassis

with a PP1

jumper

setting

of

FE.

If

you

are

using

more

than

one

Expansion

Chassis,

you

can

select

the

Chassis

with

other

PP1

settings

by

replacing

the

254

in

this

command

with

one

of

four

other

values.

See

the

Software

Commands

Table

later

in

this

chapter

for a list

of

the

values

you

must

use

.

To

deselect

the

Expansion

Chassis

from

Integer

BASIC,

type

POKE

-16352,255

and

the

red

light

will

go

off,

indicating

that

the

Chassis

is

deselected.

If

you

are

using

more

than

one

Expansion

Chassis,

this

command

will

deselect

all

of

them.

To

deselect

just

one

Chassis

of

several,

use

the

above

command

to

deselect

all

of

them. Then

reselect

only

the

Chassis

you want.

Applesoft

BASIC

Controlling

the

Expansion

Chassis

from

Applesoft

is

almost

exactly

like

the

Integer

BASIC

procedures.

To

select

the

Expansion

Chassis

from

Applesoft,

type

POKE

49184,254

As

with

Integer

BASIC,

you

can

select

Chassis

with

other

PP1

settings

by

replacing

the

254

with

another

value.

See

the

Software

Commands

Table

for a list

of

these

values.

To

deselect

the

Expansion

Chassis

from

Applesoft,

type

POKE

49184,255

This

command

will

deselect

all

the

Chassis

plugged

into

your

Apple.

To

deselect

one

of

several

Expansion

Chassis,

first

use

this

command

to

deselect

them

all,

and

then

reselect

the

one you

want.

The

Monitor

To

select

the

Expansion

Chassis

from

the

Monitor,

type

C020:FE

As

with

both

versions

of

BASIC,

the

hexadecimal

value

FE

in

this

statement

will

have

to

be

replaced

if

you

are

using

Expansion

Chassis

with

different

PP1

settings.

You

will

find

the

appropriate

values

with

which

to

replace

the

FE

in

the

Software

Commands

Table.

To

deselect

the

Expansion

Chassis

from

the

Monitor,

type

C020:FF

2-3

CHAPTER 2 OPERATING

THE

EXPANSIOH

CHASSIS

If

there

are

more

than

one

Expansion

Chassis

installed

in

your

Apple,

this

command

will

deselect

them

all.

To

deselect

one

of

several

Expansion

Chassis,

first

deselect

them

all

with

the

command

above, and

then

reselect

the

one you want.

Switching

Hodes

From

Pascal

Selecting

or

deselecting

the

Expansion

Chassis

from

Pascal

is

a

little

different

from

doing

the

same

thing

from

BASIC

or

the

Monitor.

There

is

no

single

command

to

access a particular

memory

location.

However, embedding two

short

Pascal

procedures

in

your

program

will

allow

you

to

select

or

deselect

your

Chassis

from

Pascal.

The

two

Pascal

procedures

are

given

below.

The

first

procedure,

when

called

in

a program,

selects

the

Expansion

Chassis.

The

second

procedure

deselects

it.

Neither

of

these

procedures

require

parameters.

Here's

the

Select

procedure:

PROCEDURE

EXCHON;

CONST

EXPANCH:-16352;
SELECT:254;

TYPE

MEMORY=PACKED

ARRAY 0 •• 0 OF 0 ••

255;

VAR

ADDR:INTEGER;
P:

MEMORY;

BEGIN

ADDR:

=EX

PANCH;

MOVELEFT(ADDR,P,2);

P 0 ::SELECT

END;

This

procedure

will

only

select

an Expansion

Chassis

with a PP1

jumper

setting

of

FE.

If

you

are

using

more

than

one

Expansion

Chassis,

you

can

modify

this

procedure

slightly

to

select

your

other

Chassis

by

replacing

the

value

in

the

third

line

of

the

procedure,

SELECT=254;,

with a different

value.

The

values

you

must use

are

given

in

the

Software

Commands

Table.

2- 4

CHAPTER 2 OPERATING

THE

EXPANSION

CHASSIS

Here's

the

Deselect

procedure:

PROCEDURE

EXCHOFF;

CONST

EXPANCH:-16352;
DESELECT=255;

TYPE

MEMORY=PACKED

ARRAY 0 •• 0 OF

0 •• 255;

VAR

ADDR:INTEGER;
P:

MEMORY;

BEGIN

ADDR::EXPANCH;

MOVELEFT(ADDR,P,2);

P 0

:=DESELECT

END;

If

you

are

using

more

than

one

Expansion

Chassis,

this

procedure

will

deselect

all

of

them.

To

deselect

one

of

several

Expansion

Chassis,

first

deselect

all

of

them

with

the

above

procedure,

and

then

reselect

the

one you want

with

the

Select

procedure.

NOTE

These

procedures

will

not

work

by

themselves.

As

with

all

Pascal

procedures,

they

must

be

incorporated

in

a program and

compiled.

The

Software

Commands

Table

The

following

table

shows

all

the

commands

discussed

in

this

chapter.

This

table

assumes

that,

if

you

are

using

more

than

one

Chassis,

you

arranged

their

PP1

jumpers

as

suggested

in

this

manual.

2-5

CHAPTER 2 OPERATING

THE

EXPANSION

CHASSIS

Table

1

Software

Commands

SELECT

DESELECT

-------------------------------------------------------------

Integer

BASIC

Chassis

1

Chassis

2

Chassis

3

Chassis

4

All

Chassis

Applesoft

BASIC

Chassis

1

Chassis

2

Chassis

3

Chassis

4

All

Chassis

The

Monitor

Chassis

1

Chassis

2

Chassis

3

Chassis

4

All

Chassis

Pascal

Chassis

1

Chassis

2

Chassis

3

Chassis

4

All

Chassis

POKE

-16352,254

POKE

-16352,253

POKE

-16352,251

POKE

-16352,247

POKE

49184,254

POKE

49184,253

POKE

49184,251

POKE

49184,247

C020:FE
C020:FD
C020:FB
C020:F7

SELECT:254
SELECT=253

SELECT=251
SELECT:247

Some

HelpfUl

Tips

POKE

-16352,255

POKE

49184,255

C020:FF

DESELECT=255

As

you

use

your Expansion

Chassis,

you

will

find

that

it

is

good

for

more

than

just

adding

peripheral

slots.

There

are

some

things

you

can

do

with

an

Expansion

Chassis

that

you

just

couldn't

do

with

an Apple,

no

matter

how

many

peripheral

slots

it

had.
For example,

if

you have a

hard-copy

print

routine

that

insists

your

printer

be

in

slot

#1, you can

switch

between two

different

printers

without

modifying

your

software.

If

you have,

say

both

a

dot

matrix

and a

letter

quality

printer,

you

can

plug

one

into

slot

#1

in

the

Apple and

the

other

into

slot

#1

in

the

Expansion

Chassis

and

switch

between

the

two

by

deselecting

or

selecting

the

Expansion

Chassis

at

strategic

points

in

the

program's

operation.

2

-6

CHAPTER 2 OPERATING

THE

EXPANSION

CHASSIS

Here's

another

idea.

If

you

have

an

Auto

Start

ROM

you

can

autoboot

disk

drives

plugged

into

the

Expansion

Chassis

by

simply

holding

in

the

Select/Deselect

button

on

the

Chassis

face

plate

while

you

turn

the

Apple on.

Another

way

to

autoboot

disk

drives

in

the

Expansion

Chassis

is

to

press

the

RESET

key.

If

you

discover

some

clever

ways

to

use

the

Expansion

Chassis,

we

at

Mountain

Computer

would

love

to

hear

about

them

in

writing.

2- 7

APPENDIX A INSTALLATION

CONSIDERATIONS

Appendix A
Installation

Considerations

Your

Expansion

Chassis

is a useful

and

versatile

enhancement

to

your

Apple

II

computer

system.

Every

computer

product

designed

to

be

used

with

the

Apple

has

limitations

simply

because

there

are

so

many

products

available

for

the

Apple,

and

thus

many

possible

system

configurations.

This

section

on

limitations

of

the

Expansion

Chassis'

use

has

been

included

in

the

manual

so

that

you

can

get

the

most

from

your

Chassis.

Processors

verses

Peripherals

Some

peripheral

cards

are

also

microprocessor

cards.

For

this

reason,

a

few

may

not

work

in

the

Expansion

Chassis.

However,

you

can

use

processor

cards

in

conjunction

with

your

Expansion

Chassis

by

always

plugging

them

into

the

Apple.

Video Cards

If

a

video

card

is

active

in

your

Apple

and

you

select

the

Expansion

Chassis

your

system

may

"hang",

and

you

may

have

to

power

down

the

Apple

to

recover.

To

avoid

this

problem,

set

the

appropriate

SW1

switch

to

lock

out

the

Expansion

Chassis

for

the

Apple

slot

that

has

the

video

card.

NOTE

You

may

have

to

dedicate

the

Apple C800

space

to

Apple

use

only

(most

video

cards

use

the

C800

space).

This

is

done

by

placing

the

PP2

jumper

in

the A position.

Jumpers

to

the

Mother Board

Any

peripheral

card

with a jumper

that

plugs

into

the

Apple's

mother

board

should

be

plugged

into

the

Apple,

not

the

Expansion

Chassis.

In

most

cases

the

cable

connecting

the

peripheral

card

to

the

Apple's

mother

board

is

not

long

enough

to

reach

from

the

Expansion

Chassis

to

the

Apple.

Even

if

the

cable

is

long

enough,

it

is

inconvenient

to

have

unnecessary

cables

and

wires

stretched

between

the

Apple and

the

Chassis.

Selectable

Slot

Banks

The

Expansion

Chassis

doesn't

just

augument

your

Apple's

periph-

eral

capacity

with

eight

additional

peripheral

slots.

Instead

you

get

another

bank

of

slots.

For

example,

with a single

Chas-

sis

system

you

will

have

two

banks

of

peripheral

slots.

The

SW1

switches

allow

the

user

to

use

both

the

Apple

and

the

Expansion

Chassis

slots

at

the

same

time

(as

long

as

there

are

no

conflicts

(i.e.

two

cards

in

the

same

slot

and

the

SW1

switch·is

off).

A-1

APPENDIX A IN

STA

LLATI

ON

CONSIDERATIONS

One

advantage

to

this

scheme

is

that

slot

designations

in

your

software

apply

to

either

the

Apple

or

the

Expansion

Chassis,

depending

on

whether

the

Expansion

Chassis

is

selected

or

deselected

This

lets

you

switch

back

and

forth

between

two

similar

peripherals

(such

as

two di

sk

drives)

by

simply

selecting

and

deselecting

the

Expansion

Chassis.

System

Configuration

Examples

The

following

examples

demonstrate

a few

of

the

possible

system

configurations

that

can

be

setup

when

the

Expansion

Chassis

is

connected

to

the

Apple.

Example 1

CP/Mtm

CONFIGURATION

APPLE

I/0

SLOTS

0 - Language Card*

(MCI

RAMPLUS+

etc.)

-

Optional

2 -

Optional

3 - 80 Column

Card:*

4 - Z80

Softcard*

5 -

Optional

6 -

Disk

Controller*

7 -

Expansion

Chassis

Interface

EXPANSION

CHASSIS

I/0

SLOTS

0 -

None

-

Printer Interface

2 -

Modem

Interface

3 -

None

4 -

None

5 -

Optional

6 -

None

7 -

Optional

*

Set

SW 1 switches

1,

4,

5,

and 7 to

ON

(disables

Expansion

Chassis

slots

0,

3,

4,

and

6).

**

Set

the

PP2

jumper

to A (lock

C800

to

Apple).

A-2

APPENDIX A INSTALLATION

CONSIDERATIONS

Example

2

allocates

the

CP/M

environment

to

the

Expansion

Chassis

(the

Z80

Softcard

must

reside

in

the

apple).

This

allows

the

Apple

to

be

used

for

the

non-CP/M

environment.

Example 2

CP/Mtm

(EXTERNAL

CONSOLE)

CONFIGURATION

------------------------------------------------------------------

APPLE

I/0

EXPANSION

CHASSIS

SLOTS

I/0

SLOTS

0 -

Optional

0 -

Language Card

(MCI

RAMPLUS+

etc.)

1 -

Expansion

Chassis

1 -

Parallel

Printer

Interface

Interface

(viaMCICPS

Card

Phantom

slot)

2 -

Optional

2 -

Remote

Interface

3 -

Optional

3

-

MCI

CPS

Card

(Serial

Console

Interface)

4 -

Optional

4 -

Optional

5 -

Optional

5 -

Optional

6 -

Disk

Controller*

6 -

None

7 -

Z80

Softcardtm*

7 -

None

Interface

*

Set

SW1

switches

7 and 8

to

ON

(disables

Expansion

Chassis

slots

6 and

7).

A-3

APPENDIX A INSTALLATION

CONSIDERATIO

NS

Example

3

PASCAL

CONFIGURATION

------------------------------------------------------------------

APPLE

I/0

SLOTS

0 - Language Card*

(MCI

RAMPLUS+

etc.)

-

Optional

2 -

Optional

3 -

80

Column

Card:*

4-

Optional

5 -

Optional

6 -

Disk

Controller*

7 - Expansion

Chassis

Interface

EXPANSION

CHASSIS

I/0

SLOTS

0 -

None

-

Printer

Interface

2 -

Modem

Interface

3 -

None

4 - Optional(MCI Music

System

PWA I etc.)

5 -

Optional

(MCI

Music

System

PWA

II

etc.)

6 -

None

7 -

Optional

*Set

SW1

switches

1 ,and 7

to

ON

(disables

Expansion

Chassis

slots

0,

and

6).

**

Set

the

PP2

jumper

to A (lock

C800

to

Apple).

A-4

APPENDIX A INSTALLATION

CONSIDERATIONS

Example 4

CP/Mtm -PASCAL

COMBINATION

CONFIGURATION

APPLE

I/0

EXPANSION

CHASSIS

SLOTS

I/0

SLOTS

0 -

Language Card*

0 -

None

(MCI

RAMPLUS+

etc.)

1 -

Expansion

Chassis

1 -

Optional

Interface

2 -

Optional

2 -

Optional

3 -

80

Column

Card**

3 -

Optional

4 -

Optional

4 -

Optional

5 -

Optional

5 -

Optional

6 -

Disk

Controller*

6 -

None

7 -

Z80

Softcardtm

7 -

Optional

*

Set

SW1

switch

7

to

ON

(disables

Expansion

Chassis

slot

6).

**

Set

the

PP2

jumper

toP

(software

select

C800

space).

A-5

APPENDIX

A

INSTALLATION

CONSIDERATIONS

Some

Ideal

Chassis

Peripherals

Following

is a list

of

peripherals

that

are

especially

convenient

to

use

from

the

Expansion

Chassis.

This

list

is

just

a

small

sample

to

give

you a

general

idea

of

the

types

of

peripherals

that

work

well

in

the

Expansion

Chassis.

As

you

use

your

Expansion

Chassis

you

will

find

that

many

other

peripherals

work

equally

as

well

as

those

mentioned.

Mountain

Computer

Products

tm

The

Clock

SuperTalkertm
MusicSystemtm
ROMPLUS+tm
A/D

+ D/Atm

Introl

X-1otm

ROMWRITE~tm

RAMPLUS+

m

CPS

Multifunctiontm

Other

Products

Corvustm Hard

Disk

Systems *

Micromode'

IItm

*

Speechlink

m *

alphaSyntauri

Keyboardtm *

Passport

Designs

Keyboardtm *

In

General

Serial

or

parallel

cards

Disk

drives

NOTE

Because

of

their

design

some

types

of

perip

h-

eral

cards

don't

work

as

well

when

installed

in

the

Expansion

Chassis.

If

you

find

that

one

of

your

peripherals

doesn't

seem

to

work

well

when

plugged

into

the

Expansion

Chassis,

try

installing

it

in

the

Apple.

* These

are

trademarks

for

the

following:

Micromedemtm

for

Hayes

Microcomputer

Products,

Speechlinktm

for

Hueristics

Inc.,

Corvustm

for

Covrus

Systems

Inc.,

alphaSyntauritm

for

alphaSyntauri

Inc.,

Passport

Designstm

for

Passport

Designs

Inc.

A-6

-

--------------------

APPENDIX

B

Appendix B
Trouble

Shooting

TROUBLE

SHOOTING

Even

though

your

Expansion

Chassis

was

carefully

designed

and

built

with

quality

materials,

you

may

have a

problem

with

it

at

some

point.

You

can

solve

some

of

these

problems

yourself.

Other

problems

need

the

attention

of

experts

. The

purpose

of

this

section

of

the

manual

is

help

you

determine

which

kind

of

problem

you

have

, and

if

possible,

help

you

solve

it

yourself

.

It

Doesn't

Work

At

All

If

the

lights

on

Expansion

Chassis'

faceplate

do

not

come on and

the

Chassis

doesn't

respond

to

commands,

one

or

more

critical

cables

may

have

come

loose.

Turn

the

Apple

OFF

and

unplug

the

Chassis.

Then

check

that

•

the

power

transformer

is

properly

attached

to

the

Chassis

.

•

the

50

pin ribbon

cable

is

firmly

attached

to

the

Chassis.

•

the

50

pin

ribbon

cable

is

firmly

attached

to

the

Interface

Card.

If

all

the

cables

seem

firmly

attached,

but

the

Chassis

still

doesn't

work,

see

the

section

in

this

Appendix

called

"Replacing

the

Fuse".

The

Select/Deselect

Button

Doesn't

Work

If

software

will

control

the

Expansion

Chassis,

but

the

lights

on

the

faceplate

don't

go on and

the

button

doesn't

work,

the

block

that

holds

the

lights

and

Select/Deselect

button

may

have

come

loose. First

turn

the

Apple

OFF,

and

unplug

the

Chassis

from

the

wall

. Then remove

the

Expansion

Chassis'

top

cover.

Inside

the

Chassis

in

the

right

front

corner

is a small

block

that

holds

the

lights

and

button

on

the

Chassis

faceplate.

Check

that

the

wires

connecting

this

block

to

the

Chassis'

mother

board

are

secure.

Replacing

the

Fuse

Perhaps

the

most

likely

problem

to

occur

is

a blown

fuse.

If

you

are

careful,

you

should

never

have

to

replace

the

fuse

. However,

replacing

the

fuse

is

not

difficult

or

complicated.

The

fuse

in

the

Expansion

Chassis

acts

as a safety

device

.

If

something

goes

wrong and

the

electrical

current

in

the

Chassis

is

greatly

disturbed,

the

fuse

will

blow

out,

breaking

the

electrical

circuit

and

thus

saving

the

Expansion

Chassis'

power

supply

from

severe

damage.

B-1

APPENDIX

B

TROUBLE

SHOOTING

Here

are

some

reasons

that

the

fuse

might

blow

out:

e A

peripheral

card

is

not

properly

plugged

into

the

Chassis.

e A

defective

peripheral

card

is

plugged

into

the

Chassis.

•

Metal,

such

as a paper

clip

or

ring,

comes

in

contact

with

the

power

supply.

•

Liquid

is

spilled

inside

the

Chassis.

You

can

reduce

the

likelyhood

of a blown

fuse

by

avoiding

the

situations

listed

above.

Identifying

a Blown Fuse

The

most

obvious

indication

that

you

may

have a blown

fuse

is

if

the

Expansion

Chassis

will

not

work.

If

the

fuse

is

blown,

the

green

a~d

red

lights

on

the

Chassis

faceplate

will

not

work and

the

Chassis

will

not

respond

to

any commands.

NOTE

Before

you

run

out

to

buy

a new

fuse,

make

sure

that

the

Apple

in

which

the

Expansion

Chassis

is

plugged

is

on

and

the

Expan

sion

Chassis

itself

is

plugged

in

to

the

wall.

This

may

sound

silly,

but

check

anyway. It

might

save

you

time

and money.

If

the

Expansion

Chassis

seems

to

be

hooked

up

correctly

and

it

still

doesn't

work, you

should

check

the

fuse.

Before

you remove

the

Chassis'

top,

unplug

it

from

the

~all.

This

is

important!

If

you

touch

parts

of

the

power

supply

while

the

Chassis

is

plugged

in,

you

may

get a shock,

and

the

fuse

will

probably

blow

out

if

it

hasn't

already.

Remove

the

Chassis'

top

cover

and

examine

the

fuse.

(If

you

don't

remember where

it

is,

see

the

drawing

of the

mother

board

in

Chapter

1

of

this

manual.)

A

healthy

fuse

of

this

type

is

completely

clear.

If

the

fuse

is

blown

it

may be

slightly

discolored.

If

the

fuse

is

not

discolored

that

doesn't

necessarily

mean

it

is

not

blown,

however.

To

check

for

certain,

hold

the

fuse

gently

between

your

thumb and

forefinger,

and

pull

it

out.

Then

look

for

the

thin

wire

that

runs

through

its

length.

If

this

wire

is

broken,

the

fuse

is

definitely

blown.

The

Right

Fuse

For

the

Job

If

you

have

determined

that

your

Expansion

Chassis

does

need

a

new

fuse,

go

to

your

local

electronics,

hardware,

or

autoparts

store

and buy a

BUSS

MDX

1-1/2

amp.

fuse.

B-2

APPENDIX B TROUBLE

SHOOTING

Installing

the

Hew

Fuse

The new

fuse

is

easy

to

install.

Just

push

it

gently

into

the

metal

holders

the

old

fuse

was

in,

making

sure

the

metal

ends

of

the

fuse

come

into

contact

with

the

metal

holders.

Don't

worry

about

installing

it

backwards.

This

fuse

doesn't

have

a

backwards.

If

the

Fuse

Repeatedly

Blows

If

the

Expansion

Chassis'

fuse

blows

repeatedly,

one

of

the

peripheral

cards

plugged

into

the

Chassis

may

be

faulty

or

installed

improperly.

Try

removing

all

the

peripheral

cards

and

then

selecting

the

Expansion

Chassis.

If

the

fuse

no

longer

blows,

the

problem

was

probably

caused

by a

faulty

or

poorly

installed

peripheral

card.

If

the

fuse

continues

to

blow when

all

the

peripheral

cards

are

removed,

your

Expansion

Chassis

is

probably

not

working

properly.

In

this

case,

you

will

have

to

return

it

to

us

for

service.

See

the

section

in

this

appendix

called

"When

to

Send

It

Back"

for

details

on

returning

your

Expansion

Chassis

for

service.

When

to

Send

It

Back

Your

Expansion

Chassis

is

under

warranty

for 1 year,

and

we

at

Mountain

Computer

Inc.

are

happy

to

service

it

for

you

free

of

charge

during

this

time.

However,

if

you

want

your

Expansion

Chassis

to

be

serviced,

it

must

be

shipped

PREPAID

to

us.

Shipping

your

Expansion

Chassis

takes

time

and

money,

not

to

mention

the

possibility

that

it

may

be damaged

if

it

is

not

very

carefully

packed.

To

avoid

these

inconveniences

when

possible,

as

well

as

to

speed

up

the

time

it

takes

to

service

your

Chassis,

we

recommend

that

you

try

to

isolate

any

problems

you

are

having

before

you

send

your

Expansion

Chassis

to

us.

If

your

Expansion

Chassis

is

not

working

properly,

first

check

that

the

problem

isn't

one

that

you

can

take

care

of

with

the

information

in

this

appendix.

If

it

isn't

mentioned

here,

you

will

probably

have

to

send

your

Expansion

Chassis

to

us

for

service.

NOTE

Before

returning

your

Expansion

Chassis

to

us

for

repair,

contact

our

Customer

Service

department

for

an

authorization

number. Your

Expansion

Chassis

must

be

sent

prepaid.

See

the

warranty

in

the

back

of

this

manual

for

more

information.

B-3

APPENDIX

C

INSTALLATION

SUMMARY

Appendix C
INSTALLATION

SUMMARY

If

you

have

never

installed

an

Expansion

Chassis

before,

carefully

read

Chapter

1,

Installation,

following

the

instructions

as

you

read.

If

you

already

know

how

to

install

an

Expansion

Chassis,

you

can

skip

Chapter

1,

as

this

short

summary

probably

has

all

the

information

you need.

Following

is a list

of

installation

steps.

For

more

details,

refer

to

Chapter

1.

1)

Unpack

the

Expansion

Chassis

and

lay

all

parts

out

within

easy

reach.

2)

Attach

the

50

pin

ribbon

cable

to

the

Chassis

and

to

the

Interface

Card.

Make

sure

that

socket 1 corresponds

to

pin 1 at

each

end.

Plug

the

cable

in

so

that

the

colored

stripe

is

toward

the

front

of

the

Chassis

and

toward

the

bottom

edge

of

the

Interface

Card.

3)

If

you

want

to

change

the

PP1

- PP4

jumpers,

and

the

SW1

switch

positions,

do

so

now

(For

multiple

Chassis

systems,

change

the

PP1

jumper).

4)

Attach

the

smaller

16

pin

ribbon

cable

to

the

Interface

Card.

Make

sure

pin 1 on

the

cable

corresponds

to

pin 1 on

the

IC

socket.

Pin

1 on

the

ribbon

cable

connector

is

ma~ked.

5)

Remove

the

IC

at

location

F12

on

the

Apple

mother

board

(row

F,

third

IC from

the

right).

6)

Plug

the

Interface

Card

into

the

Apple.

Then

plug

the

free

end

of

the

smaller

16

pin

ribbon

cable

into

the

socket

on

the

Apple

mother

board

that

is

now

empty.

7)

Plug

the

tran

sfo

rmer

into

the

connector

on

the

rear

of

the

Expansion

Chassis.

8)

Replace

the

Expansion

Chassis'

top

cover,

and

plug

the

power

transformer

into

an

electrical

outlet.

C-1