Welcome to the Maintenance and Service Guide (MSG) for Compaq Presario 1800XL Series
Notebook Computers. This online guide is designed to serve the needs of technicians whose
job is to repair Compaq products.
For copyright and trademark information, refer to the Notice
section of this MSG. To locate
your unit’s serial number, to see symbol conventions, or to view technician’s notes, see the
Preface
For comments or questions about the contents of this MSG, contact Compaq
. This MSG is updated online as needed.
.
To report a technical problem, contact your Regional Support Center or IM Help Center.
For help on navigating in this guide, refer to Using this Guide
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
.
1
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Using this Guide
To use this guide effectively, refer to the list of bookmarks at the left of the screen. These
bookmarks help you navigate through the document quickly and easily. They are accessible
from anywhere in the Maintenance and Service Guide (MSG).
Viewing a Chapter
Click one of the bookmarks or one of the color-coded bubbles on the Welcome page
to view
a chapter of this MSG.
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Click the + to expand or show the contents of a section, or click the – to hide the contents.
Opening another Chapter
Return to the Welcome page
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Printing the MSG
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2 P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Before You Begin
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 1800 Series Registered U.S. Patent and Trademark Office.
Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft Corporation.
Windows 98 and Windows 2000 are trademarks 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 Notebook Computer
First Edition (July 2000) Compaq Computer Corporation
privacy and legal statement
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
B
EFORE YOU BEGIN
1
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Preface
This Maintenance and Service Guide is a troubleshooting guide for use as a reference when
servicing the Compaq Presario 1800 Series Notebook Computers.
Compaq Computer Corporation reserves the right to make changes to the Compaq Presario
1800 Series Notebooks without notice.
Symbols
The following words and symbols mark special messages throughout this guide.
WARNING: Text set off in this manner indicates that a failure to follow directions
in the warning could result in bodily harm or loss of life.
Å
CAUTION: Text set off in this manner indicates that a failure to follow directions
in the caution could result in damage to equipment or loss of data.
Ä
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 should repair this
equipment. All troubleshooting and repair procedures are detailed to allow only
Å
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.
2 B
EFORE YOU BEGIN
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Serial Number
1
The unit’s serial number
parts. The serial number is located on the underside of the Notebook as shown below.
is required when requesting information or ordering spare
Locating Additional Information
The Compaq Presario 1800 Series Notebook Computer documentation set is available to
support this product. It includes and is not limited to the following items:
•Beyond Setup Guide
•Compaq Service Advisories and Bulletins
•Operating System Guides (Compaq and Microsoft)
•Read-This-First Cards
•Service Training Guides
•Warranty Statement
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
B
EFORE YOU BEGIN
3
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Product Description
This chapter describes the features of each of the Presario 1800XL models. It also provides
illustrations of the exterior components unique to these models.
on the power management settings, system
components such as installed PC cards, and the
applications in use.
8 S
PECIFICATIONS
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Pin Assignments
This chapter provides the pin assignments for the Presario 1800XL Series Notebook
connectors. For more information on connectors or external ports, refer to Rear Connectors
and QuikDock Connectors
Note: The signals in all tables of this chapter are considered active high unless otherwise
indicated by an asterisk (*).
Parallel Connector
.
PinSignalPinSignal
1Strobe*10Acknowledge*
2Data Bit 011Busy
3Data Bit 112Paper Out
4Data Bit 213Select
5Data Bit 314Auto Linefeed*
6Data Bit 415Error*
7Data Bit 516Initialize Printer*
8Data Bit 617Select In*
9Data Bit 718-25Signal Ground
*Signal is active low.
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
PIN A
SSIGNMENTS
1
Serial Connector
PinSignalPinSignal
1Carrier Detect6Data Set Ready
2Receive Data7Ready to Send
3Transmit Data8Clear to Send
4Data Terminal Ready 9Ring Indicator
5Signal Ground
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Keyboard/Mouse Connector
PinSignalPinSignal
1Data 14+5 V
2Data 25Clock 1
3Ground6Clock 2
2 PIN A
SSIGNMENTS
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
Models: XL180, XL181, XL182, XL183, XL185,
Modem Connector
PinSignalPinSignal
1Unused4Unused
2Tip5Unused
3Ring6 Unused
Presario 1800 Series
and XL190, XL191, XL192
Game Port Connector
PinSignalPinSignal
1+5V9+5V
2SWA10SWC
3RBTA11RBTC
4GND12RMSO
5GND13RBTD
6RBTB14SWD
7SWB15RMSI
8+5V
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
PIN A
SSIGNMENTS
3
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
External VGA Monitor Port
PinSignalPinSignal
1Red Analog 9+5V
2Green Analog10Ground
3Blue Analog11Monitor Detect
4Not connected12DDC2B Data
5Ground13Horizontal Sync
6Ground Analog14Vertical Sync
7Ground Analog15DDC2B Clock
8Ground Analog
S-Video Connector
Pin SignalPin Signal
1Ground3SYR
2Ground4SCG
4 PIN A
SSIGNMENTS
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
TV-Out (Composite Video) Connector
PinSignalPin Signal
1Ground3Ground
2Composite
Univeral Serial Bus (USB)
PinSignalPinSignal
1+5V3Data +
2Data -4Ground
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
PIN A
SSIGNMENTS
5
Models: XL180, XL181, XL182, XL183, XL185,
QuikDock Connector
Pin SignalPin SignalPin SignalPin Signal
1Adapter Power22Serial Port DCD 43Keyboard Clock64Reserved
2Adapter Power23Serial Port DSR 44Keyboard Data65Headphone
3Adapter Power24Serial Port TXD45Mouse Clock66USB Power
4Adapter Power25Serial Port RTS46Mouse Data67USB Power
5Adapter Power26Monitor DDC47Lp Indicator68USB Power
6Adapter Power27Monitor DDC48Lp Paper End69USB Power
7Not Connected 28Monitor
8Printer Data 029V.S YNC50Lp Busy71USB A+
9Printer Data 130Ground51Lp Error72USB B-
10Printer Data 231H.SYNC52Lp Acknowledge 73USB B+
11Printer Data 332Ground53Lp AutoFeed745V
12Printer Data 433Blue54Lp Strobe755V
13Printer Data 534Ground55Joystick Data A76Line Out Left
14Printer Data 635Green56Joystick Data B77S-Video SYR
15Printer Data 736Ground57Joystick Data C78Ground
16Lp Select37Red58Joystick Data D79S-Video SCG
17QuikDock
Indicator
18Serial Port
RXD
19Serial Port RI40Line Out Right61Switch C
20Serial Port
DTR
21Serial Port CTS 42Reserved63Reserved
38Ground59Switch A80Ground
39Composite
41Line Out
Presario 1800 Series
and XL190, XL191, XL192
Sense
49Lp Initialize70USB A-
Indicator
60Switch B
TV-Out
62Switch D
Present
6 PIN A
SSIGNMENTS
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
Presario 1800 Series
Models: XL180, XL181, XL182, XL183, XL185,
and XL190, XL191, XL192
Battery and Power Management
This chapter describes power management and proper battery operating practices for
Presario 1800XL Series Notebooks. These practices include conservation of AC power and
extending the operating life of the battery. The following sections also outline proper
methods to start and shut down the Notebook in various situations.
Power Modes
Presario 1800XL Series Notebooks have three levels of low power: Hibernation, Standby,
and Off.
Hibernation
Hibernation helps conserve battery life and protect data. The Notebook automatically
enters Hibernation mode when the battery has little power left or when the Notebook
(operating on battery power) is in Standby mode for more than one hour. As the Notebook
enters Hibernation, it automatically stores the contents of its memory to the hard drive
before shutdown. When the Notebook wakes from Hibernation, it returns to its former
state.
Note: When the Notebook enters or wakes from Hibernation mode, a Progress window is
displayed.
To activate Hibernation mode, press the Power button once.
To resume from Hibernation mode, press the Power button once.
Standby
Standby is a low-power mode, also referred to as Sleep mode. The Notebook maintains
system information and open files while in Standby mode. Selecting Standby mode instead
of turning off the Notebook when finished has two advantages: 1. It allows the Notebook to
wake up faster than turning it off; 2. It saves more power than the Active-On mode.
CAUTION: Unsaved information is lost if the Notebook is turned off prior to
system wake-up, or if a power loss occurs while using the AC adapter.
Ä
To activate Standby/Sleep mode, press Fn+F4 or click Start, select the Shut Down
option, and then Standby.
To resume from Standby/Sleep mode, press any key.
P
RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
B
ATTERY AND POWER MANAGEMENT
1
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