Commodore SX-64 Manual de usuario

SX-64

Installation

Instructions

Required

tools:

•

Phillips

screwdriver

•

extractor

small,

flat

bladed

screwdriver.

Needed

for

removal

the

DOS

ROMs

from

the

SX-64.

extractor

recommended,

but not

necessary.

using

screwdriver,

wrap

tape

around

the

tip

prevent

damage

the

circuit

board

when

prying.

•

Hand

power

drill.

Necessary

for

installation

the

ROM

selector

switch

the

SX-64

case

assembly.

Procedure:

Make

sure

that

the

SX-64

power

switch

OFF

and

that

any

peripherals

(printer,

disk

drive,

etc.)

attached

the

SX-64

are

also

switched

OFF.

Unplug

the

SX-64

power

supply

cord

from

its

wall

outlet,

outlet

strip,

etc.

Unplug

all

cables

from

the

SX-64.

including

(if

attached)

the

power

supply

cable.

Keyboard

cable.

Joystick

cable(s),

Video

cable,

and

Serial

Bus

cable.

disk

present

the

disk

drive,

remove

it.

Remove

any

devices

plugged

into

the

Cartridge

and

User

Ports.

Remove

the

eight

screws

shown

Figure

from

the

rear

the

SX-64.

Remove

these

screws

Figure

REAR

PANEL

SCREW

REMOVAL

Remove

both

side

rails

from

the

SX-64

sliding

them

towards

the

rear

the

computer

and

then

remove

the

three

top

cover

-Reaovt

thest

screws

retaining

screws

from

each

side

the

SX-64

shown

Figure

•

Figure

SIDE

RAIL

AND

SCREW

REMOVAL

Remove

the

SX-64

top

cover.

Locate

the

SX-64

CPU

circuit

board

using

the

board

layout

diagram

shown

Figure

CPU

tx>«rd

—.

I/O

board-

1541

board

Figure

SX-64

CIRCUIT

BOARD

LAYOUT

10.

Remove

the

plastic

lacks

holding

(he

CPU

board

and

(he

I/O

board

(he

SX-64

chassis.

This

should

allow

iho

CPU

board

enough

freedom

movement

continue

with

the

Kernal

ROM

installation.

11.

Locate

the

stock

SX-64

Kernal

ROM

the

CPU

circuit

board

using

the

diagram

shown

Figure

12.

Remove

the

Kernal

ROM

carefully

from

its

socket

using

the

extractor

small,

flat

bladed

screwdriver.

Allornalely

pry

the

ROM

from

the

front

and

back,

raising

from

its

socket

little

time.

using

screwdriver,

take

care

not

damage

the

circuit

board

while

prying.

13.

Remove

the

JiffyOOS

Kernal

ROM

labeled

KERNAL-SX

from

its

protective

packing.

careful

the

wiring

which

connects

the

Kernal

and

1541

ROMs

the

selector

switch.

Put

the

slock

Kernal

ROM

into

the

packing

for

safe

keeping.

14.

Inspect

the

JiffyDOS

ROM

assembly

carefully.

you

observe

any

bent

pins,

carefully

straighten

them

with

pair

tweezers.

15.

"Test

fit"

the

JiffyOOS

Kernal

ROM

the

top

the

empty

Kernal

ROM

socket

but

NOT

PRESS

INTO

PLACE

YET.

IMPORTANT:

Make

sure

the

notch

the

JiffyOOS

ROM

aligned

shown

below.

Notch

Figure

KERNAL

ROM

LOCATION

16.

Make

sure

that

all

pins

the

Kernal

ROM

are

aligned

with the

socket

any

pins

are

misaligned,

straighten

them

with

pair

tweezers.

17.

With

the

pins

properly

aligned,

press

the

JiffyDOS

Kernal

ROM

into

the

socket

using

firm

finger

pressure

top

Ihe

ROM.

18.

Make

sure

that

the

Kernal

ROM

assembly

seated

evenly

and

completely

its

socket.

Make

sure

that

pins

have

been

benl.

19.

Carefully

reseat

the

CPU

board

into

its

retaining

slots

the

SX-64

chassis.

Replace

the

plastic

tacks

used

hold

the

CPU

board

and

I/O

board

place.

Make

sure

that

cables

have

been

pulled

from

CPU

board

other

boards

and

that

the

I/O

Board

(see

Figure

which

plugs

into

the

side

the

CPU

board

stiJI

fully

seated

its

connector.

20.

Locate

the

1541

circuit

board

using the

diagram

Figure

Remove

the

plastic

tacks

holding

the

circuit

board

the

SX-64

chassis.

This

should

allow

the

1541

circuit

board

enough

freedom

movement

continue

with

installation.

21.

Locate

the

1541

DOS

ROM

the

1541

circuit

board

using

Figure

below.

22.

Remove

the

1541

DOS

ROM

carefully

from

socket

using

the

extractor

small,

flat-Waded

screwdriver

(it

may

necessary

reposition

the

1541

circuit

board

order

gain

easy

access

the

ROM).

Alternately

pry

the

ROM

from

the

front

and

back,

raising

from

its

socket

tittle

time.

using

screwdriver,

take

care

not

damage

the

circuit

board

while

prying.

23.

Remove

the

JrllyDOS

ROM

labeled

1541

from

its

protective

packing.

Put

the

stock

1541

DOS

ROM

back

into

the

packing

for

safe

keeping.

24.

Inspect

the

JiffyDOS

1541

ROM

carefully.

you

observe

any

bent

pins,

carefully

straighten

them

with

pair

tweezers.

25.

Test

fit"

the

1541

ROM

top

the

empty

1541

DOS

ROM

socket

but

NOT

PRESS

INTO

PLACE

THIS

TIME.

IMPORTANT:

sure

that

the

notch

the

JiffyDOS

1541

ROM

aligned

shown

below.

Notch

—?

Figure

1541

ROM

LOCATION

26.

Make

sure

each

the

JiffyDOS 1541

ROM

aligned

properly

with

the

socket.

Straighten

any

misaligned

pins

wilh

pair

tweezers.

27.

With

the

pins

properly

aligned

and

wilh

the

ROM

notch

oriented

correctly,

carefully

press

the

JiffyDOS

1541

ROM

into

the

socket

using

finger

pressure

until

fully

sealed.

28.

Make

sure

thai

the

1541

ROM

assembly

seated

evenly

and

completely

and

that

pins

have

been

bent.

29.

Carefully

reseat

the

1541

circuit

board

into

the

SX-64

chassis.

Replace

the

plastic

lacks

used

hold

Ihe

board

place.

Make

sure

that

any

cables

which

may

have

been

detached

from

the

1541

circuit

board

(or

any

other

boards)

are

reconnected.

30.

Drill

hole

the

SX-64

case

assembly

facilitate

Ihe

mounting

the

JiffyDOS

Selector

Switch.

The

diameter

the

hole

should

just

slightly

larger

than

the

threaded

collar

Ihe

switch.

location

would

recommend

Ihe

upper

portion

the

rear

panel

(visible

Figure

near

the

game

ports.

Whether

you

choose

this

location

alternate

one,

make

sure

that

the

switch

will

not

interfere

with

any

the

SX-64

internal

electronics

or with

any

cartridges,

cables,

interfaces,

other

devices

which

will

plug

into

the

SX-64.

31.

Install

(he

JiffyDOS

Selector

Switch

Into

the

hole

just

drilled

the

case

assembly

and

then

secure

using

the

nut

and

washers

provided

with

the

switch.

32.

Replace

the

SX-64

top

cover

but

not

reinstall

the

retaining

screws

this

time.

Plug

the

power

cord

back

into

its

connector

the rear

the

SX-64

and

then

into

working

outlet.

Installation

Checkout

Procedure:

Switch

the

SX-64

ON.

The

red

Indicator

light

the

front

the

disk

drive

should

come

Immediately

power

switched

on.

stay

for

about

one

second

and

then

shut

off

normally

does

upon

power-up.

THE

RED

DRIVE

LIGHT

DOES

NOT

COME

ON,

STAYS

BLINKS,

IMMEDIATELY

SWITCH

THE

SX-64

OFF.

THE

TROUBLESHOOTING

STEPS

OUTLINED

BELOW:

Unplug

the

power

cord

from

the

rear or

the

SX-64

and

remove

the top

cover.

Recheck

all

cable

connections

the

various

circuit

boards

inside

the

SX-64.

Make

sure

that

none

the

wiring

that

links

the

JiffyDOS

Selector

Switch

the

Kernal

and

1541

Adapter

Boards

has

been

broken.

MAKE

SURE

THAT

THE

POWER

CORD

HAS

BEEN

PLUGGED

INTO

WORKING

OUTLET.

Correct

any

problems,

replace

the

power

cord,

and

try

powering

the

computer

again.

the

problem

still

exists,

unplug

the

power

cord

and

remove

the

JiffyDOS

Kernal

ROM

assembly

from

its

socket

the

CPU

circuit

board.

Check

for

bent

pins

(Straighten

any

pins,

necessary)

and

then

reinstall

it.

MAKE

SURE

THAT

THE

NOTCH

THE

KERNAL

ROM

ORIENTED

CORRECTLY.

Next,

remove

the

JiffyDOS

1541

ROM

assembly

from

its

socket

the

1541

circuit

board.

Check

for

bent

pins,

and

then

reinstall

it.

Once

the

Kernal

and

1541

ROM

assemblies

have

been

reinstalled,

replace

the

power

cord,

and

try

powering

the

SX-64

again.

steps

and

both

fail,

remove

the

power

cord

and

top

cover,

remove

both

the

JiffyDOS

Kernal

and

the

1541

ROM

assemblies,

and

reinstall

the

stock

Kernal

and

1541

DOS

ROM's.

the

same

procedures

for

installing

the

stock

ROM's

used

earlier.

Make

sure

that

the

notches

both

the

stock

ROM's

are

oriented

correctly.

Replace

the top

cover

and

power

cord,

and

try

powering

the

SX-64

again.

the

SX-64

does

not

power

operate

properly

with

the

stock

ROM's

installed,

seek

the

assistance

qualified

technician.

necessary,

contact

the

distributor

from

whom

you

purchased

the

JiffyDOS

ROM

Creative

Micro

Designs,

the

ROM

was

purchased

directly

from

CMD

and

arrange

for

warranty

replacement.

After

the

SX-64

has

been

powered

for

few

seconds,

the

usual

Commodore

SX-64

BASIC

JiffyDOS

sign-on

message

should

appear

the

CRT

screen.

THE

DISPLAY

DOES

NOT

APPEAR

WITHIN

THE

APPROPRIATE

AMOUNT

TIME,

SWITCH

THE

SX-64

OFF,

AND

PROCEED

WITH

THE

TROUBLESHOOTING

PROCEDURES

FOUND

ABOVE.

Once

the

SX-64

has

been

powered

successfully,

test

the

operation

the

JiffyDOS

Selector

Switch.

this,

first

note

which

sign-on

screen

currently

displayed

the

CRT.

NOTE:

When

JiffyDOS

selected,

the

sign-on

screen

will

display

the

words

JIFFYDOS

VX.XX

the

top

the

screen.

Otherwise,

the

standard

SX-BASIC

screen

will

displayed.

Next,

switch the

SX-64

OFF

and

then

toggle

the

JiffyDOS

Selector

Switch

its

alternate

position.

Turn

the

SX-64

back

ON.

The

alternate

sign-on

screen

should then

displayed

(for

future

use,

take

note

the

switch

position

corresponding

the

JiffyDOS

and

Commodore

sign-on

screens).

you

cannot

get

both

sign-on

screens

displayed,

turn

off

the

SX-64,

toggle

the

selector

switch

back

and

forth

several

times

(to

break

through

any

oxidation

the

switch

contacts),

turn

the

SX-64

back

ON,

and

then

repeat

this

step

from

the

beginning.

you

still

can

get

only

one

message

displayed

regardless

the

switch

position,

switch

the

SX-64

OFF.

and

remove

the

power

cable

and

top

cover.

Check

the

Selector

Switch

wiring

for

shorted

broken

connections

the

Kernal

ROM

Adapter

Board

and

the

switch.

Repair

any

evident

problems

(resolder

the

connections,

necessary),

reassemble

the

SX-64,

and

check

out

the

switch

again.

necessary

contact

the

distributor

from

whom

you

purchased

the

JiffyDOS

ROM

Creative

Micro

Designs,

the

ROM

was

purchased

directly

from

CMD

and

arrange

for

warranty

replacement.

Next,

shut

off

the

SX-64.

attach

the

keyboard

and

set

the

JiffyDOS

Selector

Switch

for

JiffyDOS

mode.

Power

the

SX-64

back

ON.

Make

sure

that

the

SX-64

JiffyDOS

mode

(the

sign

screen

will

display

JIFFYDOS

VX.XX

when

the

SX-64

JiffyDOS

mode).

Type

the

character

the

keyboard

followed

RETURN

(this

will

read

and

display

the

disk

drive

error

channel).

The

following

message

should

displayed

the

CRT

screen:

73,JIFFYDOS

X.X

1541,00,00

Insert

known

good

formatted

diskette

(preferably

with

few

programs

it)

into

the

disk

drive

and

press

the

key.

The

red

disk

drive

light

should

activate

and a

listing

the

directory

should

appear

the

screen.

the

directory

listing

does

not

appear,

switch

the

SX-64

OFF.

Remove

the

power

cables

and

the

top

cover.

MAKE

SURE

THAT

ALL

INTERNAL

CABLES

ARE

PLUGGED

SECURELY

AND

CORRECTLY

INTO

THE

PROPER

CONNECTORS.

Correct

any

loose

Incorrect

connections.

Reassemble

the

SX-64

and

try

listing

the

directory

again.

the

problem

persists,

seek

the

assistance

qualified

technician.

necessary,

contact

the

distributor

from

whom

you

purchased

the

JiffyDOS

ROM

Creative

Micro

Designs,

the

ROM

was

purchased

directly

from

CMD

and

arrange

for

warranty

replacement.

Once

the

directory

listing

appears

correctly

the

screen,

shut

the

SX-64

OFF

and

remove

the

power

cord

from

the

rear

the

unit.

Replace

the

retaining

screws

used

hold

the

top

cover

place.

Slide

the

rails

into

place

along

the

side

the

SX-64.

Replace

the

back

panel

and

side

rail

retaining

screws

removed

during

disassembly

(see

Figure

1).

Plug

the

power

cord

back

into

the

rear

the

SX-64

and

make

sure

that

the

keyboard

properly

connected.

Refer

the

JiffyDOS

Users

Manual

for

complete

Instructions

how

use

JiffyDOS.

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