AMSTRAD CPC464 Manual de usuario

gee

ees

CONTENTS

Page

Techmcal

Specification

Flash

Test

CPC464

Cabinet

Parts

List

CPC464

Keyboard

Cabinet

Drawing

Cassette

Mechanism

and

Parts

List

4,5,6

Cassette

Deck

Alignment

Instructions

CPC464

Cassette

PCB

CPC464

Cassette

Deck

Circuit

Diagram

CPC464

Basic

Hardware

Analysis

Cassette

Software

Analysis

CPC464

Function

Diagrams

CPC464

Main

PCB

12,13

CPC464

Circuit

Diagram

&16

CPC464

Electrical

Parts

List

GT64

Cabinet

Drawing

and

Parts

List

GT64

Circuit

Diagram

Voltages

GT64

Main

PCB

Alignment

Instructions

GT64

Electrical

Parts

List

CTM640

Cabinet

Drawing

Parts

List

CTM640

Electrical

Parts

List

CTM640

Alignment

Instructions

CTM640

Voltages

CTM640

Circuit

Diagram

back

pull

out

CTM640

PCB

back

pull

out

SAFETY

TEST

All

monitors

are

safety

tested

the

following

specifications.

1).

Flash

Test

4kV

between

the

live

and

neutral

the

mains

lead

joined

together

and

ALL

accessible

metal

points

the

exterior

the

set.

2).

Insulation

Resistance

Test

between

the

live

and

neutral

the

mains

lead

joined

together

and

ALL

accessible

metal

points

the

esterior

the

set

show

resistance

least

4Mohm.

after

servicing

there

any

doubt

about

continued

electrical

safety

the

above

tests

should

carried

out.

TECHNICAL

SPECIFICATION

LSI

CHIPS:

Z80A

processor

running

4MHz

64K

bytes

RAM

(over

42K

available

user)

32K

bytes

ROM

containing

BASIC

and

the

operating

system

6845

CRT

controller

device

sound

generator

chip

AY-3-8912

voice,

octave

8255

parallel

1/0

device

interface

the

sound

chip

DISPLAY

SPECIFICATION:

Mode

Normal

High

Res.

Multiclr.

No.

from

Colrs.

27 27

Vert.

200

Dots.

Horiz.

320

640

160

Dots.

Horiz.

Chars.

KEYBOARD:

keys

—

qwerty

style,

numeric

cluster,

cursor

and

copy

cursor,

large

enter,

shift,

caps

lock,

tab,

escape,

delete,

clear,

control.

DATACORDER:

Write

speed

software

selectable

—

baud

baud,

read

speed

automatically

established

software.

Write

protect

interlock.

Motor

on/off

controlled

software.

ADD-ON

ABILITY:

Compact

floppy

disk

drive

system

including

CP/M*

and

LOGO

language.

Centronics

compatible

printer.

Joystick(s).

Additional

ROM’s.

Additional

RAM

8160K.

EXTERNAL

SOCKETS:

PCB

edge

connectors

for

general

purpose

expansion

and

Centronics

parallel

printer.

socket

for

joystick

socket

for

—

RGB

and

sync

—

composite

video

—

luminance

and

sync

3.5mm

socket

for

stereo

sound

output

5mm

socket

for

CPC464

power

supply

(supplied

exclusively

from

screen)

DIMENSIONS

(mm):

Keyboard

580

=«-170

CTM640

375

340

365

GT64

305

315 335

WEIGHTS

(kg):

Keyboard

2.4

CTM640

10.6

GT64

6.3

POWER

SUPPLY:

Screen

System:

240V

50Hz

(keyboard

and

datacorder

power

supplied

screen

system)

*CP/M

registered

trademark

Digital

Research

Inc.

AMSTRAD

and

AMSOFT

are

trademarks

Amstrad

Consumer

Electronics

PLC.

keeping

with

our

policy

continually

improving

our

service,

and

technical

quality

our

products,

reserve

the

right

change

component

types,

manufacturers,

sources

supply

technical

specification

any

time

Keyboard,

Colour

Monitor.

Green

VDU

—

Designed

U.K

Made

Korea

AMSTRAD

CONSUMER

ELECTRONICS

PLC

BRENTWOOD

HOUSE,

169

KINGS

ROAD,

BRENTWOOD,

ESSEX

CM14

4EF

Telephone:

Brentwood

(0277)

228888

Telex:

995417

AMSELE

CPC464

CABINET

PARTS

LIST

Sym|

Description

Top

Cabinet

Ribs

170001

On/Off

Switch

170002

Vol.

Control

Pot.

170003

Knob

Vol.

Control

170004

|LED

Red

170005

Cassette

Lid

170006

Key

Board

Assy.

170007A

Z.7D101

|Key

Board

Assy.

170007B

270102

Rubber

Contact

mat.

170008

Key

Board

|Rubber

Contact

Mat

170009

Digit

Rubber

Contact

Mat

170010

Spacer

Bottom

Cabinet

170011

Ribs

|Cassette

Mechanism

170012

Tape

Counter

170013

|Counter

Belt

170014

Record

Button

Cass.

170015

Play

Button

Cass.

170016

|Rewind

Button

Cass.

170017

|Fast

Forward

Button

170018

Cass.

Stop/Eject

Button

170019

Cass.

Pause

Button

Cass.

170020

Cass.

Door

Spring

170021

1/0

Socket

170022

User

Port

Socket

170023

D.C.

Socket

170024

DIN

Socket

170025

Inlay

Main

170026

Inlay

Cassette

170027

Keyboard

Contact

170028

P.C.B.

Keyboard

Contact

P.C.B.

Bottom

Cabinet

Ribs

Top

Cabinet

Ribs

Speaker

170029

170030

170031

170124

CPC464

CABINET

DRAWING

CASSETTE

MECHANISM

CASSETTE

MECHANISM

CPC464

CASSETTE

MECHANISM

PARTS

LIST

Sym

|Description

R/P

Head

Erase

Head

Base

Auto

Stop

Arm

Stopper

809172

Pinch

Roller

Assembly

809162

Spring

Pinch

Roller

809161

Fibre

Washer

809175

Rewind

Spool

809160

Take

Spool

809159

Record

Safety

Lever

809158

Idler

Gear

809173

Back

Spring

170203

Main

Belt

170204

Flywheel

809156

Locking

Plate

Stopper

170205

Locking

Plate

170206

Spring

Post

Locking

Plate

170207

Motor

170208

Idler

Assembly

809155

Pause

Lock

Plate

809168

Leaf

Switch

809157

F.F.

Idler

Arm

Assembly

809152

Eject

Lever

Cassette

Door

170209

Spring

Cassette

Buttons

170210

Motor

Pulley

170211

jLeaf

Switch

170212

170201

170202

809170

809171

CASSETTE

DECK

ALIGNMENT

INSTRUCTIONS

check

cassette

module

independently

the

C.P.U.

connect

across

points

B(-)

and

C(+),

and

link

and

The

cassette

will

then

operate

audio

mode.

(See

page

Cassette

Circuit

Diagram)

Equipment

Required:

Frequency

Counter,

AV.O.,

V.T.V.M.,

Oscilloscope

Test

Tape.

STEP

FUNCTION

SIGNAL

OUT

METHOD

REMARKS

Cassette

Azimuth

Adjustment.

Monitor

V.T.V.M.

Insert

Test

Tape

recorded

6kHz

constant.

Monitor

switched

and

fix

Set

Volume

maximum

CPC464.

connections.

Connect

V.T.V.M.

I.C.302

read

between

330mV

520mvV.

adjusting

azimuth

screw

the

cassette

head.

Speed

Check.

Put

the

standard

tape

Monitor

Check

output

from

the

tape

the

oscilloscope.

Speed

variation

£4%

will

not

the

cassette

Oscilloscope.

The

range

used

100uS.

affect

software

mechanism.

9b81-

€

/-Id

yS000SW

COE

Yi000LW

l0EGId

ALLASSVO

V9VIdd

(921UM)

(49018)

GND

BLOGS

100d)

Si:

Gee

OFIFYT

10E2/

8SS2-1

[Dd

VSO00LH

(Oesod

64-8-1-d@s

4-S>9

WVYSVIC

LINDYID

WOAG

ALLASSVO

p9vDd9

75000SH

CONNECT

CPC464

BASIC

240V

MAINS

HARDVVARE

ANALYSIS

RED

LED

LIGHTS

REPLACE

MAINS

FUSE

CHECK

FOR

FAULTY

CABLE

PLUG

ASSY

FROM

MONITOR

YES

—_

Coane

FAULTY

LED

SOLDERED.

BROKEN

PCB

TRACK

q0iNze

FAULTY

CONNECTER

CHECK

KEYBOARD

PCB

FOR

SIGNS

ABUSE:

fe)

CRACKS

—

LIQUID

SPILLAGE

DISTORTED

MOUNTING

CHECK

CONNECTOR

LEAD

TEST

SWITCH

AND

TERMINATION

COMPUTER

FAULTY

SWITCH

KEYBOARD

UNI

RGB

VIDEO

ANY

YES

CONNECTOR

PICTURE

INSERTED

ALL

CHECK

KEYBOARD

UNIT

STILL

TRY

REPLACE

FAULTLY

SEEK

TAPE

ANOTHER

SPECIALIST

CONNECTOR

TAPE

ADVICE

IMPROVEMENT

FAULTY

AUDIO

AMP

SPEAKER

FAULTY

VOLUME

CONTROL

FAULTY

AUDIO

CONNECTOR

PLUG

/SOCKET

FAULTY

AY-3-8192

SOUND

SEE

CASSETTE

FLOW

CHART

STILL

NOTHING

(

FAULTY

ULA

FAULTY

VIDEO

CONNECTOR

FAULTY

CABLE

ASSY

FAULTY

ULA

FAULTY

PCB

CHECK

FAULTY

MONITOR

CABLE

TERMINATION

INTERNAL

CONNECTORS

BRIGHTNESS

CONTROL

Z80A

6845

CRYSTAL

RAM

CASSETTE

SOFTWARE

ANALYSIS

CHECK

CLEAN

CHECK

HEAD

CHECK

SWITCH

CHECK

TAPE

CONNECTIONS

CASSETTE

MOTOR

CONT-

TAPE

DECK

TAPE

HEAD

ALIGNMENT

KEYS

ROL

RELAY

POSSIBLE

FAULT

WITH

COMPUTER

BOARD:RAM

FAILURE

ULA

FAILURE

SOFTWARE

LOADS,

BUT

WITH

UNUSUAL

RESULTS

N.B

ACTUAL

‘PHYSICAL’

DAMAGE

Full

diagnostic

teste

the

C.P.U.

can

carried

out

using

the

SOFTWARE

TAPE

WILL

PREVENT

Amstrad

RP1

Test

Pack.

FROM

ALL:

Please

contact

Amstrad

PLC

for

information

same.

THERE

WILL

‘HALF’

WORKING

PROGRAMS.

THEY

EITHER

LOAD-

THEY

DON'T.

CPC464

FUNCTION

DIAGRAMS

ENA

(Cil4

veo

6D 7D

5D 5a

ICH3

Veo

ty!

2A4

1¥2

243

242

lYA

2Al

OUTPUTIQ

2D 20

GND

CONROL

1C104.105

STROBE

yeroag

vec.

SELECT

PATA

INPUTS

OUTPUT

ICHO

Yoo

4Y 98

BAA

lic

ic2

ici

ico

PEER

OE eT

EARERRCAREARCAGE:

BTU

STROBE.

BUT

seLECT

DATA

INPUTS

GND

PAS

IBS

1Ne

“GND

INPUTS

OUTPUTS

A B

BCD

-TO-DECIMAL

123456789

ICil2

Veco

4Y 3B

iclol

fia)

fe)

fe]

OLY)

O2Y

GND

{C106

Vcc

CLOCK

ICl25

4Y¥

3A OY

eet

Eley)

TEV

CLEAR

2D 2@ 3@ 3D

GND

1B fy

GND

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