IBM PCjr Betriebsanleitung

Personal

Computer

PCy'r

Hardware Reference

Library

Hardware

Maintenance

and

Service

1502263

Personal

Computer

PCyr

Hardware

Reference

Library

Hardware

Maintenance

and

Service

First

Edition

(September

1983)

Changes

are

periodically made to

the

information herein; these

changes will be incorporated in new editions of this publication.

Products

are

not

stocked at the address below. Requests

for

copies of this product and for technical information about the _

system

should

made

your

authorized

IBM

Personal

Computer

dealer.

Reader's

Comment

Form

provided

the

back

this

publication. If this

form

has

been

removed,

address

comments

IBM

Corporation,

Personal

Computer,

P.O.

Box

1328-C,

Boca

Raton,

Florida 33432.

IBM

may use

distribute any

the

information you supply in

any

way it believes appropriate without

incurring

any

obligations whatever.

©Copyright International Business Machines Corporation 1983

FEDERAL

COMMUNICATIONS

COMMISSION

RADIO

FREQUENCY

INTERFERENCE

STATEMENT

Warning:

This

equipment

has

been

certified

comply

with

the

limits

for

aClass Bcomputing

device,

pursuant

Subpart

Part

15 of

FCC

rules. Only peripherals (computer

input/output

devices, terminals, printers, etc.) certified to comply

with

the

Class

Blimits

may

attached

this

computer.

Operation

with

non-certified peripherals

is likely

result

interference

radio

and

reception.

INSTRUCTIONS

USER

This

equipment

generates

and

uses radio frequency

energy

and

not

installed

and

used

properly, i.e., in

strict

accordance

with

the

operating

instructions,

reference

manuals,

and

the

service manual,

may

cause

interference to radio

television reception.

has

been

tested

and

found

comply

with

the

limits

for

aClass B

computing device

pursuant

Subpart

Part

FCC

Rules, which

are

designed to provide

reasonable

protection

against

such

interference

when

operated

residential

installation.

this

equipment

does

cause

interference

radio

television reception, which

can

determined

turning

the

equipment

off

and

on,

the

user

encouraged to try to correct the interference by one or

the

following measures:

•

Reorient

the

receiving

antenna.

•

Relocate

the

equipment

with

respect

the

receiver.

•

Move

the

equipment

away

from

the

receiver.

•

Plug

the

equipment

into

different

outlet

that

equipment

and

receiver

are

different

branch

circuits.

•

Ensure

that

side

option

mounting screws,

attachment

connector

screws,

and

ground

wires are

tightly

secured.

• If peripherals

not

offered

IBM

are

used

with

this

equipment,

it is

suggested

that

you

use

shielded,

grounded

cables

with

in-line filters, if necessary.

If necessary, consult your dealer service representative

for

additional suggestions.

The

manufacturer

not

responsible

for

any

radio

interference

caused

unauthorized

modifications

to this equipment. It is

the

responsibility

the

user

correct

such

interference.

CAUTION

This

product

equipped

with

listed

and

CSA-ceitified

plug

for

the

user's

safety.

used in conjunction with aproperly grounded 115 ^

Vac

receptacle

avoid

electrical

shock.

' ^

Preface

The Hardware Maintenance

and

Servicemanual helps

you isolate and repair failures of the IBM PCyr. You

should be trained to service

the

IBM

PC/r

and

famihar

with

the

Triplett

Model

310

Multimeter^

(or

equivalent).

This

manual

consists

six

sections:

Section 1,

"Introduction,"

provides acapsule

description of the IBM PCyr

and

its options.

Section 2,

"Introduction

to Diagnostics," hsts

the

items

you

need

to perform

the

IBM

PCyrdiagnostics.

Detailed instructions explaining

how

to perform

the

advanced

power-on

self-test

(POST)

and

other

advanced

tests

are

included

here.

Section

"Problem

Isolation

Charts,"

contains

the

start point for

IBM

PCyr diagnostics. This section

assumes

you

have

read

Section

and

know

how

perform

advanced

tests.

Section 4, "Removal/Replacementand Adjustments,"

provides all the information needed to complete arepair

after

the

failing field replaceable

unit

(FRU)

identified

Section

Section 5, "Locations," assists you in finding a

part

FRU

the

IBM

PCyr.

1Manufactured by Triplett Corporation, Bluffton, Ohio 45817

Section

"Parts

Catalog,"

contains

part

numbers

for

the

IBM

PCyr

parts

and

FRUs.

Complete operating instructions

for

the

IBM

PCyr are

the

Guide to Operations,

IBM

part

numbers

1502291

and

1502292.

Detailed

hardware

design

and

interface

information

are

the

Technical Reference,

IBM

part

number

1502293.

Contents

Section

Introduction

1-1

Description

1-3

Features

1-3

Options

1-3

Section

2. Introduction

Diagnostics

2-1

Required

Items

for

Diagnostics

2-3

How

Perform

Advanced

POST

2-4

How

Perform

Advanced

Tests

2-8

Section

Problem

Isolation

Charts

3-1

Start

3-000-1

Undetermined

Problem

3-010-1

Power

3-020-1

Memory

3-200-1

Keyboard

3-300-1

Display

3-500-1

Diskette

Drive

3-600-1

Light

Pen

3-800-1

Cartridge

3-810-1

Sound

3-820-1

Internal

Modem

3-830-1

RS232

3-840-1

Compact

Printer

3-850-1

Parallel

Printer

Attachment

3-900-1

Joystick

3-1300-1

Graphics

Printer

3-1400-1

Section

4. Removal Replacement

and

Adjustments

4-1

How

Use

this

Section

4-5

Power

4-020-1

Power

Board

Removal

020

4-020-1

Power

Board

Replacement

025

...

4-020-3

System

Unit

4-100-1

System

Unit

Top

Cover

Removal

100

4-100-1

System

Unit

Top

Cover

Replacement

105

4-100-2

Side

Cover

Removal

110

4-100-3

Side

Cover

Replacement

115

4-100-4

System

Board

Removal

120

4-100-5

System

Board

Replacement

125

4-100-9

Memory

4-200-1

64KB

Memory

and

Display

Expansion

Removal

200

4-200-1

64KB Memory

and

Display

Expansion

Replacement

205

....

4-200-2

Keyboard

4-300-1

Infra-Red

Receiver

Removal

300

.4-300-1

Infra-Red

Receiver

Replacement

305

4-300-2

Keyboard

Battery

Replacement

310

4-300-3

Display

4-500-1

IBM

Color

Display

Removal

500

..4-500-1

IBM

Color

Display

Replacement

505

4-500-2

IBM

Color

Display Vertical

Hold

Adjustment

510

4-500-3

IBM

Color

Display Vertical Size

Adjustment

515

4-500-4

Diskette

Drive

4-600-1

Diskette-Drive

Adapter

Removal

600

4-600-1

Diskette-Drive

Adapter

Replacement

605

4-600-2

Diskette

Drive

Removal

610

4-600-3

Diskette

Drive

Replacement

615

4-600-6

Diskette-Drive

Mounting

Bracket

Removal 620 4-600-8

Diskette-Drive

Mounting

Bracket

Replacement

625

4-600-9

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