Commodore COLT 286 Manuale utente

SERVICE

MANUAL

COLT

286

OCTOBER,

1989

PN-314118-02

Commodore

SERVICE

MANUAL

COLT

286

OCTOBER,

1989

PN-314118-02

INTERNATIONAL

EDITION

COMMODORE

“INTERNATIONAL

EDITION”?

SERVICE

MANUALS

CON-

TAIN

PART

NUMBER

INFORMATION

WHICH

MAY

VARY

ACCORDING

COUNTRY.

SOME

PARTS

MAY

NOT

AVAILABLE

ALL

COUNTRIES.

Commodore

Business

Machines,

Inc.

1200

Wilson

Drive,

West

Chester,

Pennsylvania

19380

U.S.A.

Commodore

makes

expressed

implied

war-

ranties

with

regard

the

information

contained

herein.

The

information

made

available

solely

basis,

and

the

entire

risk

quality

and

accuracy

with

the

user.

Commodore

shall

not

liable

for

any

consequential

incidental

damages

connection

with

the

use

the

information

con-

tained

herein.

The

listing

any

available

replace-

-ment

part

herein

does

not

constitute

any

case

recommendation,

warranty

guaranty

quality

suitability

such

replacement

part.

Reproduction

use

without

expressed

permission,

editorial

pictorial

content,

any

matter

prohibited.

This

manual

contains

copyrighted

and

proprietary

information.

part

this

publication

may

reproduced,

stored

retrieval

system,

transmitted

any

form

any

means,

electronic,

mechanical,

photocopying,

recording

otherwise,

without

the

prior

written

permis-

sion

Commodore

Electronics

Limited.

1989

Commodore

Electronics

Limited.

All

rights

reserved.

COLT

286

SERVICE

MANUAL

TABLE

CONTENTS

SECTION

—

SPECIFICATIONS

SECTION

—

OPERATION

NOTES

SECTION

—

TROUBLESHOOTING

GUIDE

SECTION

—

PARTS

SECTION

—

SCHEMATICS

COLT

286

SERVICE

MANUAL

TECHNICAL

SPECIFICATIONS

COLT

286

MEMORY

ROM

RAM

board

RAM

expandable

‘on

board

slots

CPU

Type

Clock

speed

80287

Math

Co-processor

Number

Slots

Operating

System

KEYBOARD

Number

keys

Type

Numeric

keypad

Cursor

keys

Function

keys

POWER

SUPPLY

Type

Maximum

configuration

supported

INPUT/OUTPUT

PORTS

RS232C

serial

Centronics

parallel

Mouse

port

STORAGE

Floppy

drive

Hard

drive

Maximum

internal

configuration

VIDEO

EGA

CGA

MDA

Hercules

Compatible

Autoconfig

BIOS

640

kbytes

Base

RAM

n/a

Yes;

Mbytes

80286-12

MHz

Socket

board

Two

AT,

one

slots

MS-DOS

3.3

included

ASCII

101

—

International

102

Enhanced

Yes

inverted

layout

High-efficiency

switching

power

supply

with

integrated

cooling

fan

floppy

disk

drives,

one

hard

disk

drive,

expansion

cards;

floppy

disk

drive,

one

hard

disk

drive,

tape

unit,

expansion

cards

Built

for

1352

Mouse

—

Microsoft

bus

mouse

configuration

Build

controller

supports

one

two

drives

One

hard

disk

built

Two

half-height

3.5

5.25

inch

floppy

disk

drives

and

one

half-height

3.5

inch

hard

disk

drive

EGA

Wonder800

video

card

EGA

Wonder800

video

card

EGA

Wonder800

video

card

EGA

Wonder800

video

card

(See

EGA

Wonder800

User’s

Guide

for

video

details.)

COMPATIBLE

MONITORS

EGA,

RGB

Color,

TTL

Monochrome,

Multisyne

Monitors

OTHER

FEATURES

Built-in

real-time

clock/calendar

with

battery

backup

External

Configuration

switches

Hardware

Reset

switch

Audio

connector

—

peak-to-peak;

ohm

impedance)

provides

external

audio

for

enhanced

sound;

connected

monitor’s

pre-amp

circuit.

COMMODORE

ADD-ON

OPTIONS

Second

floppy

disk

drive

1352

mouse

MPS

1250

printer

1402

TTL

monitor

(mono)

xxxx

monitor

(mono)

with

sound

1084

RGB

monitor

(color)

with

sound

1-1

COLT

286

SERVICE

MANUAL

EGA

WONDER800°®

SPECIFICATIONS

VIDEO

DISPLAY

BUFFER

256K

bytes

SYNC

SIGNALS

Separate

horizontal

and

vertical

sync

TTL

levels

Horizontal

35kHz

MultiSync

monitors

(800x600)

31.5kHz

MultiSync

monitors

(640x480)

21.8kHz

EGA

monitors

15.75kHz

RGB

monitors

18.432kHz

TTL

Monochrome

monitors

Vertical

MultiSync

monitors

(800x600)

MultiSync

monitors

(640x480)

EGA

monitors

RGB

monitors

TTL

Monochrome

monitors

CONNECTOR

9-pin

shell

(Female)

IBM

standard

MONITOR

COMPATIBILITY

TTL

Monochrome

Display

RGB

Color

Display

EGA

Enhanced

Color

Display

MultiSync

monitor

SIZE

5.25"

4.2"

POWER

+5V

5%,

0.6

AMP

typical

ENVIRONMENT

Ambient

Temperature

50°

122°

(10°

50°

operation.

32°

162°

(0°

70°

storage

Relative

Humidity

90%

non-condensing

operation.

95%

storage

BUS

standard

BUS

than

TTL

load

CONNECTOR

SPECIFICATIONS

DB9

Connector

Ground

Secondary

Red/Ground

Primary

Red

Primary

Green

Primary

Blue

Secondary

Green/Intensity

Secondary

Blue/Mono

Video

Horizontal

Retrace

Vertical

Retrace

COLT

286

SERVICE

MANUAL

SECTION

NOTES

—

OPERATIONS

GUIDE

COLT

286

SERVICE

MANUAL

OPERATION

NOTES

THE

COLT

286

HARDWARE

CONF

IGURATION

USING

THE

COLT

286

SETUP

UTILITY

;

bret

has

finished

booting

and

the

prompt

has

appeared,

you

can

use

the

built-in

Setup

utility

give

eee

information

your

COLT

286

configuration.

run

the

Setup

utility,

hold

down

the

Control

and

Alt

keys

and

simultaneously

press

the

Esc

key.

The

main

the

Setup

utility

will

appear

and

will

look

this:

Commodore

Setup

Utility

Hard Disk

Type

Inforeation

Date

Laie

Type

Cyln

Head Sect

W-pc

L-zone

Size

Diskette

306

128

Hard

Disk

Hard

Disk

Video

Coprocessor

Base

Memory

Extended

Merory

Base

memory

found:

Extended

aeaory

found:

Use

toselect

ites

Use

~»,<

select

predefined

values

Use

<PgDn>

view

sore

hard

disk

types

Press

<Esc>

abort

SETUP

Press

<End>

exit

and

update

Press

for

secondary

SETUP

window

ROVIMAIAATNANABDAMDOHHAD

FIGURE

COMMODORE

SETUP

UTILITY

MAIN

noted

the

Setup

screen,

you

can

use

the

cursor

keys

and

the

keyboard

define

change

the

system

configura-

tion,

follows:

Use

the

and

down

cursor

keys

move

from

option

the

main

menu.

Use

the

left

and

right

cursor

keys

select

the

predefined

entries

for

each

option.

Use

the

keyboard

type

any

information

that

not

predefined.

Use

PgDn

display

additional

hard

disk

types

(see

Figure

2).

Use

the

key

display

the

secondary

setup

window.

Use

the

Esc

(Escape)

key

abort

Setup.

Use

the

End

key

exit

Setup

and

update

the

settings.

Following

specific

information

about

the

various

Setup

options.

Setting

the

Date

and

Time

for

the

Real

Time

Clock/Calendar

The

COLT

286

has

Real

Time

Clock/Calendar

with

battery

backup.

This

means

that

once

set,

the

clock/calendar

will

keep

the

correct

date

and

time

even

when

the

computer

turned

off.

You

use

the

first

two

lines

the

Setup

Utility

set

the

Real

Time

Clock/Calendar,

follows:

Date:

Allows

you

set

the

correct

date

into

the

Real

Time

Clock.

This

option

does

not

have

any

predefined

entries;

simply

enter

the

date

from

the

keyboard,

the

format

dd/mm/yy.

Time:

Allows

you

set

the

correct

time

into

the

Real

Time

Clock,

without

invoking

MS-DOS.

This

option

also

does

not

have

any

predefined

entries;

simply

enter

the

time

from

the

keyboard,

the

format

hh:mm:ss.,

where

=00-23,

=00-59

and

ss=00-59.

Setting

the

Floppy

Disk

Drive

Options

Aes

can

maximum

two

floppy

diskettes

configured

into

your

COLT

286.

The

two

Setup

options,

iskette

and

Diskette

allow

you

tell

the

system

how

many

floppy

drives

are

available

and

what

type

they

are.

2-1

COLT

286

SERVICE

MANUAL

Here’s

how

set

these

options:

Diskette

Predefined

entries:

None,

360

5.25,

1.2

5.25,

720

3.5,

1.44

3.5.

The

floppy

drive

your

COLT

286

always

considered

Diskette

Since

COLT

286

equipped

with

high

density

(1.44

Mb)

drive,

select

1.44

3.5

for

Diskette

Predefined

entries:

None,

360

5.25,

1.2

5.25,

720

3.5,

1.44

3.5.

you

have

not

installed

second

floppy

drive

your

COLT

286,

select

None

for

Diskette

you

have

installed

second

floppy

drive,

select

whichever

drive

type

(360

5.25,

1.2

5.25,

720

3.5,

1.44

3.5)

applies

the

installed

drive.

Setting

the

Hard

Disk

Drive

Options

Hard

Disk

and

Hard

Disk

the

two

options

the

Setup

utility,

define

how

many

hard

disk

drives

are

available

and

what

kind

hard

disk

drives

they

are.

Hard

disk

drives

are

identified

pre-assigned

Drive

Type

(1,

etc.).

This

number

tells

the

COLT

286

the

drive

manufacturer

and

capacity.

Commodore

Setup

Utility

tee

Default

Systea

Speed

isk

MHz

Hard

Disk

1/0

Diskette

Board

Mouse

Diskette

Hard

Disk

Board

LPT

vee

Press F2

return

eain

screen

Coprocessor

Base

Memory

640

Extended

Mezory

000

Base

senory

found:

640

Extended

nesory

found:

000

Use

select

iteas

Use

~,@

select

predefined

values

Use

<PgDa>

view

hard

disk

types

Press

<Esc>

abort

SETUP

Press

<End>

exit

and

update

Press

for

secondary

SETUP

window

FIGURE

SETUP

UTILITY

PULLDOWN

FOR

HARD

DISK

DRIVE

TYPE

Here’s

how

define

your

hard

disk

configuration:

Hard

Disk

Your

COLT

286

comes

equipped

with

hard

disk

drive.

This

drive

always

considered

Hard

Disk

The

Drive

Type

for

this

drive

shown

sticker

located

the

back

your

System

Unit.

Find

this

number

and

type

after

Hard

Disk

The

COLT

286

Setup

utility

includes

hard

disk

drive

types

with

their

individual

numbers.

You

can

page

through

the

pressing

the

PgDn

key.

For

example,

the

opening

Setup

screen

Figure

lists

drive

types

through

16.

you

press

PgDn,

the

Setup

screen

will

shown

Figure

with

drive

types

through

listed.

Hard

Disk

This

option

not

supported

the

onboard

controller.

Other

Setup

Options

the

Main

Setup

Screen

Video:

Tells

system

what

the

default

video

is.

Factory-set

default

special.

This

will

not

change

even

the

EGA

Wonder800

Card

setting

changes.

change

the

card

setting,

see

the

EGA

Wonder800

User’s

Guide.

Coprocessor:

Tells

system

80287

Numeric

Coprocessor

(NCP)

installed.

Factory-set

default

mone.

Select

Yes

you

have

installed

80287

Numeric

Coprocessor.

Base

memory:

Lets

you

customize

base

memory

for

specific

applications.

Extended

Memory:

Disabled.

2-2

COLT

286

SERVICE

MANUAL

Using

the

Secondary

Setup

Window

Notice

the

popup

window

shown

the

top

Figure

This

known

the

secondary

Setup

window.

You

can

access

this

window

pressing

the

key.

You

can

return

the

main

Setup

window

pressing

the

key.

The

secondary

window

provides

easy

way

change

number

system

parameters

that

are

set

startup

the

COLT

286’s

AUTOCONFIG

feature.

The

secondary

Setup

window

values

shown

Figure

are

the

default

values

normally

present

system

startup.

The

following

list

shows

all

the

possible

values

for

the

items;

the

default

values

are

underlined:

Default

System

Speed

(6/8/12,

MHz)

MHz

Hard

Disk

I/O

(isabled/Enabled)

Board

Mouse

(nabled/Disabled)

Board

COM

(@GE8H/2F8H/OFF)

Board

LPT

(3BCH/378H/278H/OFF)

Just

with

the

main

Setup

screen

menu,

when

you

are

the

secondary

Setup

window

you

can

move

item

using

the

and

down

cursor

keys,

and

you

can

set

the

value

the

item

using

the

left

and

right

cursor

keys.

However,

you

cannot

use

the

Esc

End

keys

while

you

are

the

secondary

window;

before

you

can

use

these

keys

you

must

first

return

the

main

Setup

screen

pressing

the

key.

The

Default

System

Speed

item

allows

you

select

whatever

system

speed

best

suits

the

particular

hardware/software

configuration

your

COLT

286.

For

instance,

you

are

using

some

older

software

programs

you

have

installed

slow

speed

MHz)

Numeric

Coprocessor,

these

may

not

run

all

may

unreliable

system

speed

MHz.

such

cases

you

can

simply

select

the

MHz

clock

speed

the

Default

System

Speed.

Note

that

the

MHz

Hard

Disk

I/O

value

normally

disabled

allow

for

the

fastest

possible

data

transfer

and

from

the

hard

disk.

You

should

not

have

change

this

setting

unless

you

are

using

hard

disk

that

cannot

support

high

speed

data

transfer.

You

can

use

the

secondary

Setup

window

enable

disable

the

board

mouse

and

select

the

serial

port

(COM)

and

the

parallel

port

(LPT).

SETTING

THE

MICROPROCESSOR

CLOCK

SPEED

The

80286

microprocessor

the

COLT

286

capable

running

three

different

clock

(i.e.,

processor

CPU)

speeds:

Standard

speed

Mhz

Turbo

speed

Mhz

Double

speed

Mhz

Unless

you

have

changed

the

Default

System

Speed

item

the

secondary

Setup

window,

the

COLT

286

pre-set

run

double

speed

(12

MHz)

whenever

booted.

You

can

switch

between

the

clock

speeds

during

session

using

special

key

combinations

using

the

ATSPEED

command.

(NOTE:

you

reboot

the

COLT

286,

the

system

speed

will

revert

the

default

speed

specified

the

Setup

utility.

You

can

reset

the

default

speed

using

Ctrl-Alt-

Esc

access

the

Setup

utility

and

then

using

call

the

secondary

Setup

window.)

set

the

clock

speed

from

the

keyboard,

use

these

key

sequences:

CTRL-ALT-S

for

standard

speed

MHz)

CTRL-ALT-T

for

turbo

speed

MHz)

CTRL-ALT-D

for

double

speed

(12

MHz)

Note:

Some

software

may

require

that

you

select

standard

turbo

speeds

for

normal

operation.

set

the

clock

speed

using

the

ATSPEED

command,

first

make

sure

the

MS-DOS

prompt

showing

the

screen.

Then

type

the

word

ATSPEED,

followed

space,

dash

(—),

and

then

letter

(S,

denoting

the

desired

speed.

For

instance,

you

are

standard

speed

and

you

want

change

turbo

speed

MHz),

type

the

following

and

press

Enter:

ATSPEED

—T

2-3

COLT

286

SERVICE

MANUAL

COLT

286

VIDEO

MODES

sis

The

EGA

Wonder800

card

the

COLT

286

high

performance

EGA

graphics

card

from

ATI

Technologies

Inc.,

recognized

leader

the

video

display

card

field.

Offering

total

flexibility,

the

EGA

Wonder800

can

display

all

the

major

IBM

software

and

hardware

stan-

dards

—

EGA,

CGA,

MDA

and

Hercules

—

any

the

major

monitor

types

—

Enhanced

Graphics,

RGB

Color,

TTL

Monochrome

and

Multifrequency

monitors.

The

EGA

Wonder800

100%

hardware

compatible

the

BIOS

and

levels.

There

are

switches

jumpers

set

the

EGA

Wonder800

special

software

automatically

configures

your

system

bootup.

The

EGA

Wonder800

software

utilities,

ESETUP

and

ECONFIG,

allow

the

user

easily

change

the

computer

selected

default

video

configuration.

ESETUP

used

configure

the

onboard

EEPROM.

The

setup

information

retained

even

after

the

power

turned

off.

also

used

change

store

the

default

information

used

the

EGA

Wonder800

only

necessary

use

ESETUP

the

following

situations:

change

the

default

setup

video

mode.

specify

default

monitor

selection

power-up.

start

ESETUP,

type

the

DOS

prompt:

C>ESETUP

<Enter>

the

following

will

displayed:

ATI

TECHNOLOGIES

INC

ATI

TECHNOLOGIES

INC

TECHNOLOGIES

INC

ATI

TECHNOLOGIES

INC

TECHNOLOGIES

INC

ATI

TECHNOLOGIES

INC

ATI

1989

EGAWONDERS00+

ADVANCE

SETUP

PROGRAM

MONITOR

SELECTION

-POWER

MODE

SELECTION

LoS

SEAMEN

MAI

IANNENIS

YAS

MDA

MONO

GRAPHICS

720X348

(FE)

MDA

MONO

GRAPHICS

640X400

{(F]

ADJUST

TTL

MONOCHROME

GRAYSCALE

EXIT

AND

SAVE

CONFIGURATION

Monitor

detected

EGA

Use

letter

and

ret

select

option,

exe

abort.

NOTE:

Because

ongoing

product

improvements,

EGA

Wonder800

menus

and

features

may

not

exactly

shown.

See

the

EGA

Wonder

800

User’s

Guide

and

the

software

README

files

for

the

most

current

information.

The

options

the

ESETUP

can

selected

typing

the

letter

the

left

the

selection

and

then

pressing

full

description

the

ESETUP

software,

including

the

individual

options,

see

the

EGA

Wonder800

ser’s

Guide.

ECONFIG

manu-driven

used

to:

Change

the

current

video

mode

different

mode.

Ausoriatirally

turn

your

screen

display

off

during

long

periods

inactivity.

ECONFIG

available

your

hard

disk

drive

and

one

the

EGA

Wonder800

software

diskettes.

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