IBM RT PC 10 Betriebsanleitung

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Personal

Computer

Hardware

Reference

Library

IBM

Model

Hardware

Maintenance

and

Service

59X9319

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--_.-

Personal

Computer

Hardware Reference

Library

IBM

Model

10 Hardware

Maintenance and Service

NOTICE

USER

The Diagnostic Diskettes (Diag 1and Diag 2) referred to in this manual are

located in the IBM

Problem Determination Guide binder.

First Edition November

1985

Changes are made periodically to the information herein; these changes will be incorporated in new editions of this publication.

References in this publication to IBM products, programs,

services do not imply that IBM intends to make these available in all countries

in which IBM operates. Any reference to an IBM program product in this publication

not intended to state

imply that only IBM's

program product may be used. Any functionally equivalent program may be used instead.

International Business Machines Corporation provides this manual "as is," without awarranty of any kind, either expressed

implied,

including, but not limited to, the implied warranties of merchantability and fitness for aparticular purpose. IBM may make improvements

and/or

changes in the product(s)

and/or

the program(s) described in this manual at any time.

Products are not stocked at the address given below. Requests for copies

this product and for technical information about the system

should be made to your authorized IBM RT PC Model 10 dealer.

Areader's comment form

provided at the back

this publication.

the form has been removed, address comments to IBM

Corporation, Department 998, 11400 Burnet Road, Austin, Texas 78758. IBM may use or distribute whatever information you supply in

any way it believes appropriate without incurring any obligation to you.

©Copyright International Business Machines Corporation 1985

Federal

Communications

Commission (FCC) Radio Frequency

Interference Statement

Warning:

This equipment has been tested and found

comply with

the limits for aClass Acomputing device pursuant to Subpart Jof

Part

FCC

Rules, which are designed to provide reasonable

protection against such interference when operated in acommercial

environment. Operation of this equipment in aresidential area

likely to cause interference, in which case the user

his own expense

will be required to take whatever measures may

required to correct

the interference.

This equipment generates, uses, and can radiate radio frequency energy.

not

installed and used according to the instruction manual, the equipment

may cause interference to radio communications. It has

been

tested and

found to comply with the limits for aClass Acomputing device pursuant

Subpart J

Part

FCC

Rules, which are designed to provide

reasonable protection against such interference when operated in a

commercial environment. Operation of this equipment in aresidential area

likely to cause interference, in which case the user

his own expense will

be required to take whatever measures may be required to correct the

interference.

this equipment causes interference to radio communications, which can be

determined by turning the equipment off and on, the user

encouraged to

try to correct the interference

one

more of the following measures:

•Reorient the receiving antenna.

•Relocate the equipment with respect to the receiver.

•Move the equiplnent away from the receiver.

•Plug the computer into adifferent outlet, so that the computer and

receiver are

different branch circuits.

•Ensure that card mounting screws, attachment connector screws,

and

ground wires are tightly secured.

iii

Service Manual

•Ensure that card slot covers are

place when no card

installed.

•

peripherals not offered by IBM are used with this equipment, it is

suggested to use shielded, grounded cables with in-line filters, if

necessary.

necessary, consult your dealer service representative for additional

suggestions.

The manufacturer

not responsible for any radio or television interference

caused

unauthorized modifications to this equipment.

the

responsibility of the user to correct such interference.

Safety

This manual contains

"DANGER"

notices

pages 4-22 and 4-23.

desired, translate the text and write your own words

the pages.

This manual contains a"Safety Inspection Guide"

the following pages.

The Safety Inspection Guide

used by the IBM Service Representative.

The IBM

Model 10 System Unit contains no hazardous voltages

safety grounds outside the power supply. The power supply

asealed unit

and

not field serviceable.

Safety v

Safety Inspection

Guide

Use this guide to identify unsafe conditions. Use good judgment to identify

potential safety hazards not covered by this guide.

unsafe conditions are

present, determine how serious the hazards are and whether you should

continue before correcting the problem.

Do the following checks:

Check the covers for damage

alterations that expose the internal

parts of the system unit

for sharp edges.

2. Check the covers for proper fit to the system unit. They should be in

place and secure.

vi Service Manual

3. Set the power switch

the

system unit

Off.

4. Remove the rear cover (page 4-10).

5. Remove the

top

cover (page 4-12).

Check for alterations

attachments.

there are any, check for

obvious safety hazards such as

broken

wires, sharp edges,

broken

insulation.

7. Check the internal cables for damage.

8. Check for dirt, water,

and

any

other

contamination within

the

system

unit.

Safety

vii

viii Service Manual

Check the voltage label

the rear of the system unit to ensure it

matches the voltage at your outlet.

10. Check the external power cable for damage.

11. With the external power cable connected to the system unit, check for

less than 0.1 ohm resistance between the ground lug

the external

power cable plug and the metal frame

the power supply.

12. Install the top cover (page 4-13).

13. Install the rear cover (page 4-11).

Metal

Frame

About this

Book

This manual provides service information about the IBM RT

Model 10

System Unit, adapters, and attached devices

that

not

have their own

service information. This manual does

not

contain service information

about attached printing devices.

Users of this manual should have training

the IBM

Model 10.

This manual

divided into sections to make the information easier

find.

Section

"System Description" contains abrief description

the system

unit, keyboard, and display.

Section 2, "Diagnostics" contains descriptions of the diagnostic programs,

utilities, and the service request number.

Section 3, "Problem Isolation Charts" contains the service procedures used

to isolate failures to afield-replaceable unit.

Section 4, "Removal and Replacement Procedures" contains the locations,

removal procedures, and replacement procedures. These procedures may

direct you to another section for specific details such as switch settings,

jumper settings,

terminator resistor settings.

Section 5, "Base System Unit" contains adescription, specifications, cabling

diagrams, adata flow diagram, and parts information for the base

components of the system unit.

Section 6, "System Memory Options" contains adescription, specifications,

and parts information for each system memory option.

About this Book

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