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DEC DECpc LPx User Manual

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Service
Maintenance
Manual
DECpc LPx/LPx+
PC
K-MN-SD00000 19-JG00.A
Copyright Digital Equipment Corporation
All rights reserved
January 1996
MCS LOGISTICS
ENGINEERING
-
NIJMEGEN
THE NETHERLANDS

Table of Contents

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DEC DECpc LPx Specifications

General IconGeneral
BrandDEC
ModelDECpc LPx
CategoryDesktop
LanguageEnglish

Summary

Revision History

Preface

Chapter 1 Product Description

Product Introduction

Overview of DECpc LPx/LPx+ computers, their capabilities, and technology.

Product Models Information

Detailed specifications and configurations for various DECpc LPx and LPx+ models.

Chapter 2 System Utilities & Configuration

System Utilities

Describes essential MS-DOS bootable utilities for system management and configuration.

Configuring the Computer

Explains how to use the BIOS Setup utility to modify computer settings and hardware configurations.

Helpful Hints

Provides tips on using keyboard function keys and on-line help during setup procedures.

BIOS Setup Utility Options

Details the various settings available within the BIOS Setup utility for system configuration.

Chapter 3 Service Procedures

Safety Requirements

Crucial safety precautions to prevent damage and ensure personal safety when servicing the computer.

Recommended Tools

Lists essential tools required for performing service procedures on Digital PC systems.

Computer Components

Identifies and describes the main components within the DECpc LPx computer.

Expansion Slots

Details the types and specifications of expansion slots on DECpc LPx, LPx+, and LPx 560/566 models.

Main Logic Board Jumpers

Explains jumper functions for setting computer parameters and their locations on the logic board.

Computer Memory Configurations

Outlines supported SIMM sizes and configurations for expanding computer memory on LPx and LPx+ models.

Removal Procedures

Step-by-step instructions for safely removing internal computer components.

Installation Procedures

Guides on how to install additional hardware components like cache memory and CPU upgrades.

Replacement Procedures

Instructions for replacing common computer components like batteries and disk drives.

Chapter 4 Troubleshooting

Initial Troubleshooting

General procedures and initial steps to follow when troubleshooting DECpc LPx/LPx+ computers.

Beep Codes

Lists beep codes indicating fatal and non-fatal errors during POST and their corresponding error messages.

POST and Boot Messages

Explains system messages displayed during Power-On Self-Test and boot sequence.

Computer Troubleshooting

Provides solutions for common computer problems and their probable causes.

Disk Drive Troubleshooting

Addresses issues related to IDE/SCSI hard disk drives and diskette drives not reading or writing data.

Monitor Troubleshooting

Guides on diagnosing and resolving common monitor display and connection problems.

QAPlus/FE Error Messages

Lists error messages from the QAPlus/FE diagnostic software and their solutions.

Chapter 5 Device Mapping

Memory Map (LPx/LPx+)

Details memory address allocation for base, extended memory, video RAM, and BIOS.

Memory Map (LPx 560/566 Full Range)

Provides a full-range memory map for LPx 560/566, including PC compatibility and PCI memory holes.

Memory Map (LPx 560/566 PC Compatibility Range)

Specifies the PC compatibility memory range for LPx 560/566 systems.

I/O Address Map (LPx/LPx+)

Lists I/O address ranges and their corresponding device functions for LPx/LPx+.

Computer Interrupt Levels (LPx/LPx+)

Maps interrupt controller, number, and source for LPx/LPx+ systems.

Computer Interrupt Levels (LPx 560/566)

Details interrupt levels and their sources for LPx 560/566 systems.

DMA Channel Assignment (all models)

Lists DMA channel assignments and their corresponding functions for all models.

Chapter 6 Pass / Fail Criteria

Appendix A Service Notes

Appendix B Useful Information

Related Documentation

Lists order numbers for related documentation, manuals, and user guides.

On-Line Bulletin Boards

Provides network locations for accessing Digital's online bulletin board services for product information and support.

Related product manuals