compaq 1805, 1810 Service Manual

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"Compaq.com - Compaq Presario 1800 Series Maintenance and Service Guide - Models: 1805 and 1810

United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1800 Series

Models: 1805 and 1810

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Notice Preface Product

Description Troubleshooting Illustrated

Parts Catalog Removal &

Replacement Procedures

Specifications Connector Pin

Assignments Battery Pack

Operations

Compaq Presario 1800 Series Portable Computer is a continuation of the new generation of multimedia portable computers with an innovative integrated design, outstanding audio and video, advanced core features, and attractive styling. This full-function, Pentium II - based series of portable computers allows full desktop functionality and additional connectivity via the optional port replicator.

Click to download a ZIP file containing the complete Maintenance & Service

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Guide for this product.

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"Compaq.com - Compaq Presario 1800 Series Maintenance and Service Guide - Models: 1805 and 1810

United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1800 Series

Models: 1805 and 1810

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

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, Presario Registered U. S. Patent and Trademark Office.

Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft Corporation. Windows 95 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 Presario 1800 Series Portable Computers

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"Compaq.com - Compaq Presario 1800 Series Maintenance and Service Guide - Models: 1805 and 1810

First Edition (Oct. 1998) Compaq Computer Corporation

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"Compaq.com - Compaq Presario 1800 Series Maintenance and Service Guide - Models: 1805 and 1810

United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1800 Series

Models: 1805 and 1810

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Preface

This Maintenance and Service Guide is a troubleshooting guide that can be used for reference when servicing the Compaq Presario 1800 Series Portable Computers.

Compaq Computer Corporation reserves the right to make changes to the Compaq Presario 1800 Series Portable Computers without notice.

Symbols

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 data.

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

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"Compaq.com - Compaq Presario 1800 Series Maintenance and Service Guide - Models: 1805 and 1810

WARNING: Only authorized technicians trained by Compaq should 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, the user should not 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 indications of component replacement or printed circuit board modifications may void any warranty

Serial Number

When requesting information or ordering spare parts, the computer serial number should be provided to Compaq. The serial number is located on the bottom of the computer.

Locating Additional Information

The following documentation is available to support this product:

● Compaq Presario 1800 Series Portable Computer documentation set

● Introducing Windows 98 Guide

● Service Training Guides

● Compaq Service Advisories and Bulletins

● Compaq QuickFind

● Compaq Service Quick Reference Guide

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"Compaq.com - Compaq Presario 1800 Series Maintenance and Service Guide - Models: 1805 and 1810

United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1800 Series

Models: 1805 and 1810

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Product Description

Models and Features

Controls and Lights

Left Side Components

Right Side Components

Bottom of Unit

Rear Connectors

Port Replicator

Power Management for Windows 98

Compaq Presario 1800 Series Series Portable Computer is a continuation of the new generation of multimedia portable computers with an innovative integrated design, outstanding audio and video, advanced core features, and attractive styling. This fullfunction,

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Pentium II based series of portable computers allows full desktop functionality and additional connectivity via the optional port replicator.

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"Compaq.com - Compaq Presario 1800 Series Maintenance and Service Guide - Models: 1805 and 1810

United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1800 Series

Models: 1805 and 1810

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Troubleshooting

Preliminary Steps Clearing the Power-On

Password Power-On Self Test

(POST) Compaq Diagnostics Diagnostic Error Codes Troubleshooting

Without Diagnostics Solving Minor

Problems Contacting Compaq

Support

This section covers troubleshooting information for the Compaq Presario 1800 Series Portable Computers. The basic steps in troubleshooting include:

1. Follow the Preliminary Steps.

2. Run the Power-On Self-Test (POST).

3. Follow the recommended actions described in the diagnostic tables, if you are unable to run POST or if POST displays an error message.

When following the recommended actions in the Sections on POST and

Diagnostic Error Codes perform them

in the order listed. Rerun POST after each recommended action until the problem is solved and no error message occurs. Once the problem is solved, do not complete the remaining recommended actions.

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NOTE:

If the problem is intermittent, check the computer several times to verify that the problem is solved.

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United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1800 Series

Models: 1805 and 1810

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Illustrated Parts Catalog

System Unit Boards Display

Assembly Mass Storage

Devices Miscellaneous

Cable Kit Cables Miscellaneous

Hardware and Plastics Kit

Miscellaneous Parts

Documentation and Software

This section provides an breakdown and identifies the spare parts ordering number associated with each item(s) for the Compaq Presario 1800 Series Portable Computers.

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Removal & Replace

United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1800 Series

Models: 1805 and 1810

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Removal and Replacement Procedures

This section explains the removal and replacement procedures for the computer.

Serial Number Location

Disassembly Sequence

Electrostatic Discharge

Service Considerations

Cables and Connectors

Preparing the Computer for Disassembly

Battery Pack Palmrest

Cover with Touch Pad

Keyboard

Report the computer serial number to Compaq when requesting information or ordering spare parts.

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Removal & Replace

Heatspreader Modem Processor Status Panel

Interface Board

Hard Drives Battery

Charger Board CD or DVD

Drive Display Panel

Assembly Upper CPU

Cover Speaker

Assembly Diskette Drive

Fan Assembly Audio Board System Board

Memory Module

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Specs

United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1800 Series

Models: 1805 and 1810

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Specifications

This chapter covers the following specifications of Compaq Presario 1800 Series Portable Computers:

● Computer models

● Physical and environmental

● System Interrupts

● System DMA

● System I/O Address

● System Memory Catalog

● Display

● Memory expansion

● Diskette drive

● Hard drive

● CD and DVD drive

● Battery pack

Physical and Environmental

Computer Specifications

U.S. Metric

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Specs

Dimensions

Height Depth Width

1.97 in

12.20 in

10.08 in

4.95 cm

31.00 cm

25.40 cm

Weight

Model 1805 Model 1810

7.326 Ib

3.33 kg

Stand-Alone (Battery Pack) Power Requirements

Nominal Operating Maximum Average Peak Operating

NiMH

W @ 9.6 V W @ 9.6 V W @ 9.6 V

Li-ion

W @ 14.4 V W @ 14.4 V W @ 14.4 V

AC Power Requirements

Operating Voltage Operating Current Operating Frequency

Maximum Transient

100-240 V

0.8/0.4 A RMS 47-63 Hz Meets IEC 801-4 and IEC801-5 1kV for 50 ns

Temperature

Operating 50° to 95 °F 10° to 35 °C Nonoperating -4° to 140 °F -20° to 60 °C

Relative Humidity (noncondensing)

Operating 10 to 90% 35°C to 90% Nonoperating (tw = 38.7°C max) 5 to 95% 60°C to 95%

Altitude

Operating 0 to 10,000 ft 0 to 3.15 km Nonoperating 0 to 30,000 ft 0 to 9.14 km

Shock

Operating 10 G, 11 ms, half sine Non operating 240 G, 2 ms, half sine

Vibration

Operating 0.5 G Nonoperating 1.5 G NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. Compaq Presario 1800

Series Portable Computers operate well within this range of temperatures.

System Interrupts

Hardware IRQ System Function

IRQ0 Timer Interrupt IRQ1 Keyboard IRQ2 Interrupt Controller Cascade IRQ3 Internal Modem

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Specs

IRQ4 Communication Port (COM1) IRQ5 Audio Controller IRQ6 Diskette Drive IRQ7 Parallel Port (LPT 1) (default) IRQ8 System CMOS/Real-Time Clock IRQ9 IRQ Holder for PCI Steering IRQ9 PCI-1131 CardBus Controller IRQ9 IRQ Holder for PCI Steering IRQ9 IRQ Holder for PCI Steering IRQ9 PCI-1131 CardBus Controller IRQ9 Video Controller IRQ11 Intel PCI to USB Universal Host Controller IRQ11 IRQ Holder for PCI Steering IRQ12 PS/2 TouchPad/Mouse IRQ13 Numeric data processor IRQ14 Intel PCI Bus Master IDE Controller IRQ14 Primary IDE Controller (dual fifo) IRQ15 Intel PCI Bus Master IDE Controller IRQ15 Secondary IDE Controller (dual fifo)

System DMA

Hardware DMA System Function

DMA 0 Audio Controller DMA 1 Audio Controller DMA 2 Diskette Drive DMA 4 DMA Controller

System I/O Address

I/O Address (Hex) System Function (Shipping Configuration)

0000h-000Fh DMA Controller

0020h-0021h Interrupt Controller

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Specs

0040h-0043h System timer

0060h-0060h Keyboard Controller

0061h-0061h System speaker

0064h-0064h Standard 101/102-Key or Microsoft Natural Keyboard

0070h-0071h System CMOS/real time clock

0080h-0080h Motherboard resources

0081h-008Fh DMA Controller

00A0h-00A1h Programmable interrupt controller

00C0h-00DFh DMA

00ECh-00EFh Motherboard resources

00F0h-00FFh Numeric data processor

0170h-0177h Intel PCI Bus Master IDE Controller

0170h-0177h Secondary IDE Controller (dual fifo)

01F0h-01F7h Intel PCI Bus Master IDE Controller

01F0h-01F7h Primary IDE Controller (dual fifo)

0201h-0201h Gameport Joystick

0220h-022Fh ES1869 Plug and Play AudioDrive

02F8h-02FFh Compaq Presario 56K-DF

0330h-0331h ES1869 Plug and Play AudioDrive

0376h-0376h Secondary IDE controller (dual fifo)

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Specs

0376h-0376h Intel PCI Bus Master IDE Controller

0378h-037Fh Printer Port (LPT1)

0388h-038Bh ES1869 Plug and Play AudioDrive

03B0h-03BBh Video Controller

03C0h-03DFh Video Controller

03F0h-03F5h Standard Floppy Disk Controller

03F6h-03F6h Intel PCI Bus Master IDE Controller

03F6h-03F6h Primary IDE controller (dual fifo)

03F7h-03F7h Standard Floppy Disk Controller

03F8h-03FFh Communications Port (COM1)

04D0h-04D1h Motherboard resources

0800h-0807h ES1869 Control Interface

0CF8h-0CFFh PCI bus

2180h-218Fh Motherboard resources

8000h-803Fh Motherboard resources

FCD0h-FCD7h Primary IDE controller (dual fifo)

FCD0h-FCDFh Intel PCI Bus Master IDEController

FCD8h-FCDFh Secondary IDE controller (dual fifo)

FCE0h-FCFFh Intel PCI to USB Universal Host Controller

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Specs

System Memory Catalog

Memory Address System Function

00000000h-0009FFFFh System board extension for PnP BIOS 000A0000h-000AFFFFh Graphics Controller 000B0000h-000BFFFFh Graphics Controller 000C0000h-000CBFFFh Graphics Controller

000DC000h-000FFFFFh System board extension for PnP BIOS 00100000h-03FFFFFFh System board extension for PnP BIOS 05000000h-05000FFFh PCI-1131 CardBus Controller 05001000h-05001FFFh PCI-1131 CardBus Controller 80000000h-803FFFFFh Intel Pentium(r) II Processor to PCI bridge FD000000h-FDFFFFFFh

Graphics Controller

FEA00000h-FEBFFFFFh

Graphics Controller

FED00000h-FEDFFFFFh

Graphics Controller

FFF80000h-FFFFFFFFh Motherboard resources

Display (Information not available)

13.3" (Diagonal) TFT Display U.S. Metric

Dimensions

Height Width

Information not available

Display Dimensions

Width Height Depth

Information not available

Weight

Information not available

Contrast Ratio

Information not available

Brightness

Information not available

Total Power Consumption

Information not available

Memory Expansion

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Specs

Memory Expansion

System Memory Expansion Board Memory Total Memory

32-MB 16-MB 48-MB 32-MB 32-MB 64-MB 32-MB 64-MB 96-MB

Diskette Drive (Information not available)

Diskette Drive

Capacity per Diskette (High/Low)

Information not available

Diskette Size

Information not available

Number of LED Indicators (Read/Write)

Information not available

Number of Drives Supported

Information not available

Drive Rotation (rpm)

Information not available

Transfer Rate (Kbps)

Information not available

Bytes per Sector

Information not available

Sectors per Track (High/Low)

Information not available

Tracks per Side (High/Low)

Information not available

Access Times

Track-to-Track (ms) Average (ms) Setting Time (ms) Latency Average (ms)

Information not available

Cylinders (High/Low)

Information not available

Number of Read/Write Heads

Information not available

Hard Drive (Information not available)

Hard Drives

3.2-GB 4.0-GB 6.4-GB

Capacity Per Drive

Information not available

Drive Type

Information not available

Logical Configuration

Cylinders Heads Sectors per track Bytes per sector

Information not available

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Specs

Seek Times (Typical, Including settling in ms) Single track Average Full stroke

Information not available

Transfer Rate

At interface

Information not available

DVD Drive (Information not available)

DVD Drive

Dimensions

Information not available

Weight

Information not available

Rotational Speed

Information not available

Typical Transfer Rate

Sustained Data Transfer Rate

Information not available

Access Time

Average Random Access Time

Information not available

Spin Up time

Information not available

Data Buffer Capacity

Information not available

CD Drive

24× CD Drive

Dimensions

Information not available

Weight

Information not available

Rotational Speed

Information not available

Typical Transfer Rate

Sustained Data Transfer Rate

Information not available

Access Time

Average Random Access Time

Information not available

Spin Up time

Information not available

Data Buffer Capacity

Information not available

Battery Pack

Nickel Metal Hydride (NiMH) Lithium Ion (Li ion) *

Dimensions

Height Length Width

0.8 in (20.3 mm)

5.7 in (145 mm)

3.1 in (78.7 mm)

0.8 in (20.3 mm)

5.7 in (145 mm)

3.1 in (78.7 mm)

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Specs

Weight

1.01 Ib (458.1 g) 0.90 Ib (408.2 g)

Battery Pack Operating Time

2:30 hr 3:00 hr

Energy

Nominal Open Circuit Voltage Capacity Power

9.6 V 3200mAH 40 W

14.4 V 2500mAH 40 W

Environmental Requirements

Operating Temperature Non-operating Temperature Charging Temperature

32° F (0-50° C)

-20° C -60° C 5° C-45° C

32° F (0-50° C)

-20° C -60° C 5° C-45° C

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Pins

Compaq.com

United States

Maintenance & Service Guide

Presario 1800 Series

Models: 1805 and 1810

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Connector Pin Assignments

This appendix provides connector pin assignment tables for Compaq Presario 1800 Series Portable Computers. For more information on connectors, refer to the section on Rear Connectors.

NOTE: The signals in all tables of this appendix are considered active high unless otherwise indicated by an asterisk (*).

Parallel Connector

Pin Signal Pin Signal

1 Strobe* 10 Acknowledge* 2 Data Bit 0 11 Busy 3 Data Bit 1 12 Paper Out 4 Data Bit 2 13 Select 5 Data Bit 3 14 Auto Linefeed* 6 Data Bit 4 15 Error* 7 Data Bit 5 16 Initialize Printer* 8 Data Bit 6 17 Select In* 9 Data Bit 7 18-25 Signal Ground * = Active low

Serial Connector

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Pins

Connector Pin Signal

Carrier Detect

Receive Data

Transmit Data

Data Terminal Ready

Signal Ground

Data Set Ready

Ready to Send

Clear to Send

Ring Indicator

Keyboard/Mouse

Connector Pin Signal

Data

Not defined

Ground

+5 VDC

Clock

Not defined

External VGA Monitor

Connector Pin Signal

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Pins

Red Analog

Green Analog

Blue Analog

Not connected

Ground

Ground Analog

Not connected

Ground

Monitor Detect

DDC2B Data

Horizontal Sync

Vertical Sync

DDC2B Clock

Universal Serial Bus

Connector Pin Signal

1 Ground

2 D+

3 D-

4 Power

Port Replicator

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Pins

Pin Signal Pin Signal Pin Signal Pin Signal

1 N.C. 21 Printer Data 0 41 N.C. 61 CTS 2 N.C. 22 Printer Data 1 42 N.C. 62 DCD 3 Kb Clk 1 23 Printer Data 2 43 Switch A 63 DSR 4 Joystick Data A 24 Printer Data 3 44 Switch B 64 TXD 5 Kb Data 1 25 Printer Data 4 45 Switch C 65 RTS 6 Joystick Data B 26 Printer Data 5 46 Switch D 66 N.C. 7 Kb Clk 2 27 Printer Data 6 47 N.C. 67 Detect 8 Joystick Data C 28 Printer Data 7 48 MIDI In 68 N.C. 9 Kb Data 2 29 USB 0 - 49 MIDI Out 69 V. Sync 10 Joystick Data D 30 USB 0 + 50 +5V 70 Ground 11 Lp Select In 31 USB 1 - 51 +5V 71 H. Sync 12 Lp Paper End 32 USB 1+ 52 N.C. 72 Ground 13 Lp Initialize 33 Adapter In 53 N.C. 73 Blue 14 Lp Busy 34 Adapter In 54 N.C. 74 Ground 15 Lp Error 35 Adapter In 55 N.C. 75 Green 16 Lp Ack 36 Adapter In 56 Dock ID - 76 Ground 17 Lp Auto Feed 37 Adapter In 57 RXD 77 Red 18 Lp Strobe 38 Adapter In 58 Lp Select 78 Ground 19 DDC2BC 39 N.C. 59 RI 79 N.C. 20 DDC2BD 40 N.C. 60 DTR 80 N.C.

Modem

Connector Pin Signal

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Pins

Unused

Tip

Ring

Unused

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United States June 27, 2004

COMPAQ

Maintenance & Service Guide

Presario 1800 Series

Models: 1805 and 1810

Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications

Pin Assignments | Battery Pack Operations

Battery Pack Operating Time

This appendix covers the following information concerning battery pack operating time:

● Increase battery pack operating time

● Conditioning a battery pack

● Disposal of a used battery pack

Increasing Battery Pack Operating Time

Battery pack operating time differs depending on several variables. To avoid unnecessary replacement, consider the following variables when determining how long a charged battery pack should last:

● Power management settings

● Hardware configuration

● Software applications

● Installed options

● Display brightness

● Hard drive usage

● Changes in operating temperature

● Type and number of installed PC Cards

NOTE:

The power consumption requirements for PC Cards vary widely. Some cards drain the battery pack very rapidly.

Battery pack operating time can be increased by as much as 50 percent by controlling the energy required by the computer and the energy stored in the battery pack.

Minimizing the Energy Required

To minimize the energy required by the computer, follow these steps:

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compaq 1805, 1810 Service Manual

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