Vector 4 - Page 4

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Audience

Scope

Organization

FOREWORD

S

This

manual

is

intended

for

computer

distributors

or

others

with

at

least

a

moderate

technical knowledge

of

small

computers.

Implementing

the

described

board

modifications

requires

expertise

in

soldering

and

the

handling

of

other

electronic

service

equipment.

It

will

describe

how

the

Vector

4

functions,

how

it

can

be

modified

and

what

troubleshooting

procedures

can

be

used.

The

Vector

4

Technical

Manual

is

divided

into

six,

major

parts.

The

first

part

provides

the

essential

system

specifications.

The

second

part

gives

the

Theory

of

Operation.

This

part

consists

of

nine

sections

with

each

section

discussing

a

functional

portion

or

system

of

the

Vector

4

Computer.

The

nine

functional

systems

are

listed

below:

e

CPU

¢

RAM/PROM

Memory

e

Video

e

CRT

e

I/O

o

Keyboard

e

Disk

Controller

e

Disk

Drives

e

Power

Supply

The

next

three

parts

cover

troubleshooting

and

modification

procedures. These

parts

provide

a

source

of

consolidated

data

(Through

use

of

charts

and

diagrams)

that

can

be

used

by

the

technician

to

easily

locate

Vector

4

Systems

that

may

have

to

be

changed.

Part

VI

includes

all

the

full-size

schematiecs

and

other

supplementary

documentation.

il