Compaq LTE Elite Manuale

Notice

The information in this guide is subject to change without notice.

Compaq Computer Corporation shall not be liable for technical or editorial

errors or omissions contained herein; nor for incidental or consequential

damages resulting from the furnishing, performance, or use of this

material.

This guide contains information protected by copyright. No part of this

guide may be photocopied or reproduced in any form without prior written

consent from Compaq Computer Corporation.

Compaq, Deskpro, LTE, Contura

Registered U.S. Patent and Trademark Office.

LTE Elite, SmartStation, and MiniStation are trademarks of Compaq Computer

Corporation.

Microsoft and MS-DOS are registered trademarks of Microsoft Corporation.

Windows is a trademark of Microsoft Corporation.

The software described in this guide is furnished under a license agreement

or nondisclosure agreement. The software may be used or copied only in

accordance with the terms of the agreement.

Product names mentioned herein may be trademarks and/or registered

trademarks of their respective companies.

MAINTENANCE AND SERVICE GUIDE

COMPAQ LTE ELITE FAMILY OF PERSONAL COMPUTERS

COMPAQ SMARTSTATION

First Edition (March 1994)

Part Number 194061-001

Preface

USING THIS GUIDE

This Maintenance And Service Guide is a troubleshooting reference for

servicing the Compaq LTE Elite Family of Personal Computers, the Compaq

SmartStation, the Compaq MiniStation/EN, and the Compaq MiniStation/TR.

The guide is organized into the following parts:

o Part 1: Compaq LTE Elite Computer (Chapters 1 through 5)

o Part 2: Compaq SmartStation (Chapters 6 through 10)

o Appendices

Compaq Computer Corporation reserves the right to make changes to the

Compaq LTE Elite Family of Personal Computers and its options without

notice.

SYMBOLS AND CONVENTIONS

The following format conventions distinguish elements of the text

throughout this guide:

o When keys must be pressed at the same time, the action is represented by

the key names and the plus (+) symbol. For example, Ctrl+Alt+Delete.

o The names of files are presented in uppercase, as shown here:

FILENAME.

o The names of commands or directories are presented in uppercase type as

shown here: COMMAND or DIRECTORY. Commands that are to be entered at the

system prompt are shown on a separate line.

o When you are asked to type something without pressing the Enter key, you

are directed to "type" the information.

o When you need to type information and press the Enter key, you are

directed to "enter" the information.

The following words and symbols mark special messages throughout this

guide:

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Text set off in this manner indicates that failure to follow directions in

the warning could result in bodily harm or loss of life.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> CAUTION <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Text set off in this manner indicates that failure to follow directions

could result in damage to equipment or loss of information.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

IMPORTANT: Text set off in this manner presents clarifying information or

specific instructions.

NOTE: Text set off in this manner presents commentary, sidelights, or

interesting points of information.

TECHNICIAN NOTES

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> WARNING <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Only authorized technicians trained by Compaq Computer Corporation should

attempt to repair this equipment. All troubleshooting and repair procedures

are detailed to allow only subassembly/module level repair. Because of the

complexity of the individual boards and subassemblies, no one should

attempt to make repairs at the component level or to make modifications to

any printed circuit board. Improper repairs can create a safety hazard. Any

indication of component replacement or printed circuit board modifications

may void the warranty or exchange allowances.

To properly ventilate the computer or the expansion base, allow at least 3

inches (7.62 cm) of clearance at the back and sides of the units.

To avoid the risk of electric shock or damage to the computer or expansion

base, ensure that all power sources (including the battery pack in the

computer) are disconnected before removing and replacing internal parts.

Compaq SmartStation. The Compaq SmartStation expansion base is designed

for connection to a grounded (earthed) electrical outlet. The grounding

type plug is an important safety feature. To avoid the risk of electric

shock or damage to the equipment, do not disable this feature.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

LOCATING ADDITIONAL INFORMATION

The following documentation is available to support the Compaq LTE Elite

Family of Personal Computers and its options.

o Documentation included with the computer:

- Online USER'S GUIDE

- QUICK SETUP card

- BEYOND SETUP GUIDE

o COMPAQ SMARTSTATION INSTALLATION AND OPERATIONS GUIDE

o COMPAQ MINISTATION INSTALLATION GUIDE

o COMPAQ SERVICE QUICK REFERENCE GUIDE

o Compaq QuickFind

o Compaq Service Advisories and Bulletins

Chapter 1 - Compaq LTE Elite Product Overview

Introduction

This chapter is an overview of the Compaq LTE Elite Family of Personal

Computers and covers the following topics:

o Serial number

o System overview

o Models and features

o Controls and LEDs

o Connectors

o Functional descriptions

o Docking options

o Running Computer Setup

o Reprogrammable flash ROM

o Power Management

o Security

1.1 Serial Number

The computer serial number should be provided to Compaq whenever requesting

information or ordering spare parts. The serial number is located above the

connectors behind the input/output (I/O) connector cover.

1.2 System Overview

The Compaq LTE Elite has the following upgradeable assemblies:

o Hard drive

o Display assembly

o Processor board

o RAM memory expansion board

The Compaq LTE Elite is designed to dock in one of the following options:

o Compaq SmartStation (Figure 1-1)

o Compaq LTE Lite Desktop Expansion base (with a Compaq LTE Lite Upgrade

Adapter)

o Compaq MiniStation/EN or Compaq MiniStation/TR

When docked in one of these options, the computer has the following

additional features:

o A single connection that provides multiple pass-through connections to

options such as a printer, monitor, and other external equipment

o Built-in network and SCSI-2 capability (on the Compaq SmartStation and

Compaq MiniStations only)

o Two internal drive bays (on the expansion bases only)

o Two full size 8-/16-bit Industry Standard Architecture (ISA) expansion

slots (on the expansion bases only)

Computer power is supplied through one of the following sources:

o An internal battery pack

o The computer's internal AC adapter when connected to the power cord

(Figure 1-2)

o The computer's internal AC adapter when docked in a convenience base

o The 198-pin external options connector when docked in an expansion base

(provides DC power)

o Automobile Adapter (provides DC power)

1.3 Models And Features

Models

Table 1-1 lists the Compaq LTE Elite models and model-specific features.

Table 1-1. Compaq LTE Elite Computer Models

===========================================================================

Internal

Model Display Processor Cache RAM Hard Drive

===========================================================================

4/75CX 9.5" Color TFT 486 DX4/75 MHz 16 KB 8 MB 340 or 510 MB

4/50CX 9.5" Color TFT 486 DX2/50 MHz 8 KB 8 MB 340 MB

4/40CX 8.4" Color TFT 486 DX2/40 MHz 8 KB 4 MB 170 or 340 MB

4/50E 9.5" Mono TFT 486 DX2/50 MHz 8 KB 4 MB 250 MB

4/40C 9.5" Color STN 486 DX2/40 MHz 8 KB 4 MB 170 MB

===========================================================================

Features

All models of the computer have the following features:

o Internal AC adapter

o Upgradeable SL Enhanced Intel486 microprocessors

o User upgradeable display with integrated trackball

o Local bus graphics and graphics accelerator with 1024 x 768 external

video support

o Simultaneous display capability

o Removable 2.5-inch hard drive

o Reprogrammable flash ROM (Section 1.9)

o 4 MB system RAM expandable to 20 MBs or 8 MB system RAM expandable to 24

MBs. The following memory expansion boards are available (Section 1.6):

-4MB

-8MB

-16MB

o 1.44 MB/720 kilobyte (and 1.2 MB Japanese standard), 3.5-inch diskette

drive

o Internal dynamic speaker

o Internal 101-/102-key compatible keyboard (Enhanced III type with 12

function keys)

o External keyboard/mouse support

o External numeric keypad support

o Enhanced parallel port (EPP 1.9)

o PCMCIA slot, capable of handling one of the following card combinations:

- Two PCMCIA Type I or Type II cards

- One PCMCIA Type III card

o Nickel metal hydride (NiMH) battery pack

o Battery power management features, including the following:

- Four levels of power management

- Advanced Power Management (APM)

- Standby

- Hibernation

- Screen save

- Hard drive idle

- PCMCIA slot power management

- Battery gauge

- Auxiliary battery (to protect data during battery pack replacement)

o AC power management features including the following:

- Standby

- Hard drive idle

- Screen save

o Saving of changes to hotkey settings when computer is turned off

o Electronic security features

o The following preinstalled software:

- MS-DOS and Microsoft Windows

- TabWorks utility (alternative to Program Manager)

- Computer Setup, Computer Checkup, Power Management, and Security

Management utilities

- Automatic PCMCIA configuration utilities for MS-DOS and Windows

- Windows-based online documentation

- Plug and Play BIOS

- MS-DOS- and Windows-based shutdown capability (for closing out

applications and turning off computer)

- Microsoft Video for Windows Runtime Version

- Adaptec 6360 SCSI drivers

- Universal Netware Client for simplified setup of a Netware network

- Intel Ethernet drivers and TI Token Ring drivers for networks other

than Netware

- Western Digital WIN graphics drivers

- Logitech Trackball drivers

1.4 Controls And Leds

This section covers the computer controls and LEDs (Figure 1-3).

1. Caps lock LED

2. Display switch

3. Scroll lock LED

4. Num lock LED

5. Power switch

6. Standby button

7. Power/standby LED

8. Hard drive LED

9. Diskette drive LED

10. Power/standby LED

11. Battery LED

12. Trackball

13. Trackball buttons

14. Display control slide(s)

LEDs

Table 1-2 lists the function of the LEDs.

Table 1-2. LEDs

===========================================================================

LED Name Status Indication Location Color

===========================================================================

Indice

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