Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin Assignments
Index
Presario 1900 Series
Welcome to the Maintenance & Service Guide
(MSG). This online guide is designed to serve the
needs of technicians whose job it is to repair
Compaq products. The
copyright and trademark information. The
shows symbol conventions, Technician Notes and
Serial Number locations on the unit. The
Contents provides the technician with easier
navigation.
This MSG periodically will be maintained and
updated online as needed.
For content comments or questions, contact
Notice contains the
Preface
Table of
Tech
Support..
To report a technical problem, contact your
Regional Support Center or IM Help Center.
For the best results when printing this MSG, set
printer properties to landscape.
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Before You Begin
Table Of Contents
Notice
Preface
Product Description
Bottom of Unit
Controls and Lights
Left Side and Top Wedge Components
Leftside Components
Models and Features
Power Management for Windows 98
Rear Connectors
Rightside Components
Right Side Wedge Components
Status Panel
Parts Catalog
Boards
Configure to Order
Display Assembly
Documentation and Software
Mass Storage Devices
Miscellaneous Hardware and Plastics Kit
Miscellaneous Parts Kit
System Unit
Specifications
Display
Memory Expansion
Physical and Environmental
System DMA
System Interrupts
System I/O Addresses
System Memory Catalog
Battery Operations
Conditioning A Battery Pack
Disposing Of Used Battery Pack
Increasing Battery Pack Operating Time
Pin Assignments
Keyboard and Mouse
Modem Connector
Parallel Connector
S-Video and Universal Serial Bus
Removal Sequence
Battery Pack
Cables and Connectors
Converter Board
Top of Page
Display Panel Assembly
Electrostatic Discharge
Fan Assembly
Hard Drive
Hard Drive/Battery Charger Board
Heatspreader
Hinge
Keyboard
Low Voltage Differential Signal Interface Board
(LVDS)
Memory Module
Modem
PC Card Slot
Preparing the Computer for Disassembly
Processor
RJ-11 Cable
Serial Number
Service Considerations
Speaker Assembly
System Board
Upper CPU Cover
Zif Connector
Troubleshooting
Clearing the Power-On Password
Compaq Diagnostics
Contacting Compaq Support
Diagnostic Error Codes
Power-On Self Test (POST)
Preliminary Steps
Solving Minor Problems
Troubleshooting Without Diagnostics
Top of Page
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
SpecificationsParts Catalog
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 98 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 1900 Series Portable Computers
First Edition (Oct. 1998)
Compaq Computer Corporation
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Preface
This Maintenance and Service Guide is a troubleshooting guide that can be used for reference when
servicing the Compaq Presario 1900 Series Portable Computers.
Compaq Computer Corporation reserves the right to make changes to the Compaq Presario 1900
Series Portable Computers without notice. See
Noticefor license and nondisclosure agreements.
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.
Text set off in this manner presents commentary, sidelights, or interesting points of
NOTE:
information.
Technician Notes
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 1900 Series Portable Computer documentation set
● Introducing Windows 98 Guide
● Service Training Guides
● Compaq Service Advisories and Bulletins
● Compaq QuickFind
● Compaq Service Quick Reference Guide
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Specifications
This chapter covers the following specifications of Compaq Presario 1900
Series Portable Computers:
● Physical and Environmental
● System Interrupts
● System DMA
● System I/O Addresses
● System Memory Catalog
● Display Information
● Diskette Drive or LS-120 Drive
● Hard Drive
● CD ROM or DVD Drive
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Specifications
Physical and Environmental
Presario 1900 Series
Computer Specifications
DimensionsU.S.Metric
(Models with 12.1 in TFT display)
Height
Depth
Width
(Models with 13.3 in TFT display)
Height
Depth
Width
Weight
12.1 TFT
13.3 TFT
Wedge
1.1 in
11.6 in
9.2 in
1.2 in
11.6 in
9.2 in
4.5 lb
5.0 lb
1.8 lb
234mm
294.7mm
29mm
234mm
294.7mm
30.5mm
Stand-Alone (Battery Pack) Power Requirements
NiMH
Nominal Operating
Maximum Average
Peak Operating
AC Power Requirements
Operating Voltage
Operating Current
Operating Frequency
Maximum Transient
Temperature
Operating50° to 95°F10° to 35°C
Nonoperating-4° to 140°F-20° to 60°C
Relative Humidity (noncondensing)
W @ 9.6 V
W @ 9.6 V
W @ 9.6 V
100-240 V
0.8/0.4 A RMS
47-63 Hz
Meets IEC 801-4 and IEC801-5
1kV for 50 ns
Li-ion
W @ 14.4 V
W @ 14.4 V
W @ 14.4 V
Operating10 to 90%35°C to 90%
Nonoperating (tw = 38.7°C max)5 to 95%60°C to 95%
Altitude
Operating0 to 10,000 ft0 to 3.15 km
Nonoperating0 to 30,000 ft0 to 9.14 km
Shock
Operating10 G, 11 ms, half sine
Nonoperating240 G, 2 ms, half sine
Vibration
Operating0.5 G
Nonoperating1.5 G
NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. Compaq
Presario 1900 Series Portable Computers operate well within this range of temperatures.
Next Page
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Specifications
System Interrupts
Maintenance & Service Guide
Presario 1900 Series
IRQDevice(s)
0System Timer
1Standard 101/102-Key or Microsoft
Natural Keyboard
2Programmable Interrupt Controller
3Ambit Modem
4Communications Port (COM1)
5ESS 1946 Audio Controller
6Standard Floppy Disk Controller
7Printer Port (LPT1)
8System CMOS/Real Time Clock
9Intel 82371AB/EB PCI to USB Universal
Host Controller
10PCI Fast Ethernet DEC 21143 Based
Adapter
11Texas Instruments PCI-1225 CardBus
Controller
ATI M1 Graphics Controller
12PS/2 Compatible Mouse Port
13Numeric Data Processor
14Intel 82371AB/EB PCI Bus Master IDE
Controller
15Intel 82371AB/EB PCI Bus Master IDE
Controller
Next Page
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Specifications
System DMA
DMADevice(s)
0ESS 1946 Audio Controller
Maintenance & Service Guide
Presario 1900 Series
1ESS 1946 Audio Controller
2Floppy Disk Controller
3Parallel Port (ECP Mode)
5Free
6Free
7Free
Next
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Specifications
System I/O Address
I/O AddressSystem Function (Shipping Configuration)
Maintenance & Service Guide
Presario 1900 Series
0000 - 000FDirect Memory Access Controller
0020 - 0021Programmable Interrupt Controller
0040 - 0043System Timer
0060 - 0060Standard 101/102-Key or Microsoft Natural Keyboard
0061 - 0061System Speaker
0064 - 0064Standard 101/102-Key or Microsoft Natural Keyboard
0070 - 0071System CMOS/Real Time Clock
0081 - 008FDirect Memory Access Controller
00A0 - 00A1Programmable Interrupt Controller
00C0 - 00DFDirect Memory Access Controller
00E0 - 00E1Motherboard Resources
00F0 - 00FFNumeric Data Processor
0170 - 0177Intel 82371AB/EB PCI Bus Master IDE Controller
01F0 - 01F7Intel 82371AB/EB PCI Bus Master IDE Controller
0201 - 0201Gameport Joystick
0274 - 0277IO Read Data Port for ISA Plug and Play Enumerator
0376 - 0376Intel 82371AB/EB PCI Bus Master IDE Controller
0378 - 037FPrinter Port (LPT1)
03B0 - 03BBATI M1 Graphics Controller
03C0 - 03DFATI M1 Graphics Controller
03F0 - 03F5Standard Floppy Disk Controller
03F6 - 03F6Intel 82371AB/EB PCI Bus Master IDE Controller
03F7 - 03F7Standard Floppy Disk Controller
03F8 - 03FFCommunications Port (COM1)
03D0 - 04D1Motherboard Resources
0CF8 - 0CFFPCI Bus
1000 - 103FMotherboard Resources
1040 - 104FMotherboard Resources
1050 - 105FIntel 82371AB/EB PCI Bus Master IDE Controller
1060 - 107FIntel 82371AB/EB PCI to USB Universal Host Controller
1080 - 10FFPCI Fast Ethernet DEC 21143 Based Adapter
1400 - 14FFPCI Communication Device
1800 - 1807PCI Communication Device
System Memory Catalog
Memory
Address
00000000 0009FFFF
000A0000 000AFFFF
Device
System Board Extension for PnP BIOS
ATI M1 Graphics Controller
000B0000 000BFFFF
000C0000 000CBFFF
000E4000 000FFFFF
00100000 03FFFFFF
04000000 04000FFF
04001000 04001FFF
ATI M1 Graphics Controller
ATI M1 Graphics Controller
System Board Extension for PnP BIOS
System Board Extension for PnP BIOS
Texas Instruments PCI-1225 CardBus Controller
Texas Instruments PCI-1225 CardBus Controller
F4000000 F40000FF
F4000400 F40007FF
F4100000 F41FFFFF
F4100000 F47FFFFF
F4200000 F42FFFFF
F4400000 F47FFFFF
PCI Communication Device
PCI Fast Ethernet DEC 21143 Based Adapter
ATI M1 Graphics Controller
Intel 82443BX Pentium(r) II Processor to AGP
Controller
PCI Multimedia Audio Device
ATI M1 Graphics Controller
F4C00000 F4FFFFFF
F4C00000 F5FFFFFF
F5000000 F5FFFFFF
F8000000 FBFFFFFF
FFF80000 FFFFFFFF
Display Information
PCI Multimedia Audio Device
Intel 82443BX Pentium(r) II Processor to AGP
Controller
ATI M1 Graphics Controller
Intel 82443BX Pentium(r) II Processor to PCI
Bridge (with GART support)
Reference Guide [FrontPage Save Results Component]
Quick Reference Guide
QuickFind for Windows, North
Not Available
Not Available
America, Latin America, Asia Pacific
QuickFind for Windows, Europe,
Not Available
Middle East, Africa
●QuickFind is updated monthly. To complete the QuickFind part number, add
the suffix from the table below for the desired month. If you do not specify
the 3-digit suffix, the default is the current month in which the order is
placed.
QuickFind Part Number Suffix
Suffix Month Suffix Month
-001 January -007 July
-002 February -008 August
-003 March -009 September
-004 April -010 October
-005 May -011 November
-006 June -012 December
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Illustrated Parts Catalog
Configure To Order Features
Compaq Presario 1900T Portable Computer Configure To Order Features
Microsoft Word 2000 CD
Microsoft Office 2000 SBE CD
Microsoft Office 2000 Professional CD
Other CTO Options
AC Adapter
Briefcase
External Zip
Folio Case
Port Replicator
Security Lock
Xircom 10/100 NIC
Back to Models and Features
Back to Illustrated Parts Catalog
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Product Description
Presario 1900 Series
Models and
Features
Controls and
Lights
Status Panel
Left Side
Components
Right Side
Components
Bottom of
Unit
Left Side
and Top
Wedge
Components
Compaq
Presario
1900 Series
Portable
Computers,
a new
generation
of
multimedia
portable
computers,
present
ultimate thin
and lightweight
designs,
outstanding
audio and
video,
Right Side
Wedge
Components
Rear
Connectors
Port
Replicator
Connectors
Port
Replicator
Components
Power
Management
advanced
core
features,
and
attractive
styles.
The
Removable
Drive Wedge
provides
multimedia
expansion
capability
with a DVD
or CD-ROM
Drive.
Compaq
Presario
1900 Series
Portable
Computers
include an
optional
integrated
10/100BaseT
Ethernet
Port
Replicator,
allowing the
user to
attach or
detach the
computer
quickly and
easily from
peripheral
devices.
Containing a
full array of
ports, some
Presario
computers
are
accessible
while the
system is
docked to
the Port
Replicator.
This fully
functional
Intel Celeronand Pentium
II-based
portable
computer
provides full
desktop
versatility.
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165