Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin 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 Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
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 Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Specifications Parts 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.
©1998 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
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 Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
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
Notice for 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 Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
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 Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Specifications
Physical and Environmental
Presario 1900 Series
Computer Specifications
Dimensions U.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
Operating 50° to 95°F 10° 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
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
Nonoperating 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 1900 Series Portable Computers operate well within this range of temperatures.
Next Page
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Specifications
System Interrupts
Maintenance & Service Guide
Presario 1900 Series
IRQ Device(s)
0 System Timer
1 Standard 101/102-Key or Microsoft
Natural Keyboard
2 Programmable Interrupt Controller
3 Ambit Modem
4 Communications Port (COM1)
5 ESS 1946 Audio Controller
6 Standard Floppy Disk Controller
7 Printer Port (LPT1)
8 System CMOS/Real Time Clock
9 Intel 82371AB/EB PCI to USB Universal
Host Controller
10 PCI Fast Ethernet DEC 21143 Based
Adapter
11 Texas Instruments PCI-1225 CardBus
Controller
ATI M1 Graphics Controller
12 PS/2 Compatible Mouse Port
13 Numeric Data Processor
14 Intel 82371AB/EB PCI Bus Master IDE
Controller
15 Intel 82371AB/EB PCI Bus Master IDE
Controller
Next Page
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Specifications
System DMA
DMA Device(s)
0 ESS 1946 Audio Controller
Maintenance & Service Guide
Presario 1900 Series
1 ESS 1946 Audio Controller
2 Floppy Disk Controller
3 Parallel Port (ECP Mode)
5 Free
6 Free
7 Free
Next
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Specifications
System I/O Address
I/O Address System Function (Shipping Configuration)
Maintenance & Service Guide
Presario 1900 Series
0000 - 000F Direct Memory Access Controller
0020 - 0021 Programmable Interrupt Controller
0040 - 0043 System Timer
0060 - 0060 Standard 101/102-Key or Microsoft Natural Keyboard
0061 - 0061 System Speaker
0064 - 0064 Standard 101/102-Key or Microsoft Natural Keyboard
0070 - 0071 System CMOS/Real Time Clock
0081 - 008F Direct Memory Access Controller
00A0 - 00A1 Programmable Interrupt Controller
00C0 - 00DF Direct Memory Access Controller
00E0 - 00E1 Motherboard Resources
00F0 - 00FF Numeric Data Processor
0170 - 0177 Intel 82371AB/EB PCI Bus Master IDE Controller
01F0 - 01F7 Intel 82371AB/EB PCI Bus Master IDE Controller
0201 - 0201 Gameport Joystick
0274 - 0277 IO Read Data Port for ISA Plug and Play Enumerator
0376 - 0376 Intel 82371AB/EB PCI Bus Master IDE Controller
0378 - 037F Printer Port (LPT1)
03B0 - 03BB ATI M1 Graphics Controller
03C0 - 03DF ATI M1 Graphics Controller
03F0 - 03F5 Standard Floppy Disk Controller
03F6 - 03F6 Intel 82371AB/EB PCI Bus Master IDE Controller
03F7 - 03F7 Standard Floppy Disk Controller
03F8 - 03FF Communications Port (COM1)
03D0 - 04D1 Motherboard Resources
0CF8 - 0CFF PCI Bus
1000 - 103F Motherboard Resources
1040 - 104F Motherboard Resources
1050 - 105F Intel 82371AB/EB PCI Bus Master IDE Controller
1060 - 107F Intel 82371AB/EB PCI to USB Universal Host Controller
1080 - 10FF PCI Fast Ethernet DEC 21143 Based Adapter
1400 - 14FF PCI Communication Device
1800 - 1807 PCI 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)
Motherboard Resources
12.1 in and 13.3 in TFT Display
U.S. Metric
Dimensions
12.1 in TFT
Height 1.1 in 234mm
Depth 11.6 in 294.7mm
Width 9.2 in 29mm
13.3 in TFT
Height 1.2 in 234mm
Depth 11.6 in 294.7mm
Width 9.2 in 30.5mm
Memory Expansion (Not Applicable in this Form Factor)
Diskette Drive or LS-120 Drive
Storage Drives
3.5 in Drive
Low 720KB
Capacity per Diskette (High/Low)
High 1.44MB
LS-120 Drive
Not Available
Diskette Size 3.5 in
Number of LED Indicators
1
(Read/Write)
Number of Drives Supported 1
Drive Rotation (rpm) 360
Low 31
Transfer Rate (Kbps/Sec)
High 62
Bytes per Sector 512
Low 9
Sectors per Track (High/Low)
High 18
Access Times Track-to-Track
(ms)
Head Setting (ms)
3ms
15ms
Cylinders (High/Low) Not Available
Number of Read/Write Heads 2
Next Page
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Specifications
System I/O Address
I/O Address System Function (Shipping Configuration)
0000 - 000F Direct memory access controller
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
0020 - 0021 Programmable interrupt controller
0040 - 0043 System Timer
0060 - 0060 Standard 101/102-Key or Microsoft Natural Keyboard
0061 - 0061 System speaker
0064 - 0064 Standard 101/102-Key or Microsoft Natural Keyboard
0070 - 0071 System CMOS/Real Time Clock
0081 - 008F Direct memory access controller
00A0 - 00A1 Programmable interrupt controller
00C0 - 00DF Direct memory access controller
00E0 - 00E1 Motherboard Resources
00F0 - 00FF Numeric Data Processor
0170 - 0177 Intel 82371AB/EB PCI Bus Master IDE Controller
01F0 - 01F7 Intel 82371AB/EB PCI Bus Master IDE Controller
0201 - 0201 Gameport Joystick
0274 - 0277 IO read data port for ISA Plug and Play Enumerator
0376 - 0376 Intel 82371AB/EB PCI Bus Master IDE Controller
0378 - 037F Printer Port (LPT1)
03B0 - 03BB ATI M1 Graphics Controller
03C0 - 03DF ATI M1 Graphics Controller
03F0 - 03F5 Standard Floppy Disk Controller
03F6 - 03F6 Intel 82371AB/EB PCI Bus Master IDE Controller
03F7 - 03F7 Standard Floppy Disk Controller
03F8 - 03FF Communications Port (COM1)
03D0 - 04D1 Motherboard Resources
0CF8 - 0CFF PCI Bus
1000 - 103F Motherboard Resources
1040 - 104F Motherboard Resources
1050 - 105F Intel 82371AB/EB PCI Bus Master IDE Controller
1060 - 107F Intel 82371AB/EB PCI to USB Universal Host Controller
1080 - 10FF PCI Fast Ethernet DEC 21143 Based Adapter
1400 - 14FF PCI Communication Device
1800 - 1807 PCI Communication Device
System Memory Catalog
Memory Address Device
00000000 - 0009FFFF System board extension for PnP BIOS
000A0000 - 000AFFFF ATI M1 Graphics Controller
000B0000 - 000BFFFF ATI M1 Graphics Controller
000C0000 - 000CBFFF ATI M1 Graphics Controller
000E4000 - 000FFFFF System board extension for PnP BIOS
00100000 - 03FFFFFF System board extension for PnP BIOS
04000000 - 04000FFF Texas Instruments PCI-1225 CardBus Controller
04001000 - 04001FFF Texas Instruments PCI-1225 CardBus Controller
F4000000 - F40000FF PCI Communication Device
F4000400 - F40007FF PCI Fast Ethernet DEC 21143 Based Adapter
F4100000 - F41FFFFF ATI M1 Graphics Controller
F4100000 - F47FFFFF Intel 82443BX Pentium(r) II Processor to AGP Controller
F4200000 - F42FFFFF PCI Multimedia Audio Device
F4400000 - F47FFFFF ATI M1 Graphics Controller
F4C00000 - F4FFFFFF PCI Multimedia Audio Device
F4C00000 - F5FFFFFF Intel 82443BX Pentium(r) II Processor to AGP Controller
F5000000 - F5FFFFFF ATI M1 Graphics Controller
F8000000 - FBFFFFFF Intel 82443BX Pentium(r) II Processor to PCI bridge (with GART support)
FFF80000 - FFFFFFFF Motherboard Resources
Display Information
Dimensions U.S. Metric
(Models with 12.1 TFT display)
Height
Depth
Width
(Models with 13.3 TFT display)
Height
Depth
Width
12.1" TFT Display
1.1"
11.6"
9.2"
1.2"
11.6"
9.2"
234mm
294.7mm
29mm
234mm
294.7mm
30.5mm
Diskette Drive or LS-120 Drive
Capacity per Diskette (High/Low)
Diskette Size 3.5 3.5
Number of LED Indicators (Read/Write) 1 1
Number of Drives Supported 1 1
Drive Rotation (rpm) 360 720
Transfer Rate (Kbps/Sec)
Storage Drives
3.5 Drive LS-120 Drive
Low 720KB
High 1.44MB
Low 31
High 62
Low 720KB
High 120MB
Low 313-565
High 313-565
Hard Drive
Bytes per Sector 512 512
Low 9
Low 9
Sectors per Track (High/Low)
High 18
High 93
Access Times
Track-to-Track (ms)
Head Setting (ms)
3ms
15ms
25ms (1 cycle
seek)
20ms (1 cycle
seek)
Low 80
Cylinders (High/Low) Not Available
High 1736
Number of Read/Write Heads 2 2
Hard Drives
Capacity Per Drive
Drive Type Ultra DMA 66.7 66.7
Logical Configuration
Cylinders
Heads
Sectors per Track
Bytes per Sector
6.0-GB 12.0-GB
15200
2
63
512
15200
4
63
512
Seek Times
Typical (including settling) Read
Write
Single Track Read
Write
Full Stroke Read
Write
Transfer Rate at Interface Ultra DMA mode
PIO mode
13ms
13ms
3ms
3ms
24ms
24ms
66.7MB/s Max.
66.7MB/s Max.
13ms
13ms
3ms
3ms
24ms
24ms
16.6MB/s
16.6MB/s
CD ROM or DVD Drive
Dimensions
Width
Height
Depth
Weight 300g 300g
Rotational Speed Approx.
Typical Transfer Rate
Sustained Data Transfer
Rate
Access Time
Average Random Access
Time
CD ROM Drive (24X) DVD Drive (6X)
128mm
12.7mm
129mm
128mm
12.7mm
129mm
5100RPM 3400 RPM
16.67MB/s
4100KB/s
16.6MB/s(PIO)
8100KB/s
100ms
Spin Up Time
Data Buffer Capacity 1Mbit 128KB
2.0s 2.5s
Go back to the top of Specifications
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Illustrated Parts Catalog
Presario 1900 Series
System Unit
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Hardware and
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
This
section
provides
an
illustrated
parts
breakdown
and a
reference
for spare
parts for
the
Presario
1900
Series
Portable
Computer.
Configure to
Order
The
computer
serial
number
should be
provided to
Compaq
whenever
requesting
information
or ordering
spare
parts. The
serial
number is
located on
bottom of
unit.
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Illustrated Parts Catalog
System Unit
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Hardware and
Plastics Kit
Miscellaneous
Parts
Documentation
System Unit
Parts Catalog
Description
1. Keyboards
U.S.
International
United
Kingdom
Germany
Denmark
159404001
159404002
159404031
159404313
331419371
and Software
Configure to
Order
France
Norway
Japan
Italy
Belgium
Korea
159404051
159404091
159404291
159404061
159404181
159404AD3
2. Upper CPU Cover
w/Palmrest and
TouchPad
Spare Part No:
159400-001
3. Speaker Assembly
w/Cable
Spare Part No:
174115-001
4. Battery Pack - Li ion
Spare Part No:
140664-001
5. CPU Base Assembly
Enclosure with
System
Board and Speaker
Assembly, (Bottom
Plastics) Spare Part
No:
159398-001
6. CPU Base Assembly
Enclosure with
Shield,
(Bottom Plastics - Not
Shown)
Spare Part No:
140679-001
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Illustrated Parts Catalog
Presario 1900 Series
System Unit
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Hardware and
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
Configure to
Order
Boards
Description Spare
Part
Number
1. Processors
Celeron 450 MHz
w/128L Cache
Celeron 500 MHz
w/128K Cache
Pentium III/450 MHz
w/256K Cache
Pentium III/ 500
MHz
174105001
174106001
174107001
174108001
w/256K Cache
2. Hard
TBD
Drive/Battery
Charger Board
w/RTC Battery
3. Modem
w/Shield, 56.0
Kbps Data/Fax
4. Low Voltage
Differential
Signal Board
(For 13.3'
Display Panel)
5. Voltage
Converter Board
174118001 or
331429001
174110001
174112001
6. PC Card
Assembly
7. Fan Assembly
(Not Shown)
TBD
174116001
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Illustrated Parts Catalog
System Unit
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Hardware and
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
Configure to
Order
Display Panel Assembly
Description Spare
Part
Number
Display
Panel
Assembly
w/Cable
13.3 inch
TFT
Display
Panel
Assembly
w/Cable and
Connector,
12.1 inch
TFT
174110001
174109001
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Illustrated Parts Catalog
Presario 1900 Series
System Unit
Boards
Display Assembly
Mass Storage
Devices
Miscellaneous
Hardware and
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
Configure to Order
Mass Storage Devices
Description
Diskette
Drive
w/cable
1.44 MB,
3.5 inch
Hard
Drive
6.0-GB
Model
XL1
XL160
XL161
XL162
XL163
XL1,
XL160,
XL161,
XL163
12.0-GB XL1,
XL162
6X DVD XL1,
XL161,
No.
Spare
Part
Number
331428001
140673001
174113001
159402-
001
XL162,
XL163
24X CD
Drive
XL1,
XL160
144356-
001
w/cable
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Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Illustrated Parts Catalog
Presario 1900 Series
System Unit
Boards
Display Assembly
Mass Storage
Devices
Miscellaneous
Hardware and
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
Configure to Order
Miscellaneous Hardware
and Plastics Kit
Spare Part
Number: 140675001
(Models: XL1,
XL160, XL161,
XL162, XL163)
Description Quantity
1. Display
1 each
Panel
Assembly
Hinge Cover,
Left
2. Display
1 each
Panel
Assembly
Hinge Cover,
Right
3. CD/DVD
Guide Rails
4. PC Card
Placeholder
5. Display
Panel
Assembly
Hinge Frame
(Left and
Right)
6.
Heatspreader
with Thermal
1 each
1 each
1 each
2 each
Pad
12.1 inch
FPC Support
Bracket
(Not Shown)
Keyboard
Eject Latch
(Not Shown)
TouchPad
Switch (Not
Shown)
Scroll Button
Switch (Not
Shown)
Battery Eject
1 each
1 each
1 each
1 each
1 each
Latch (Not
Shown)
Display
Screw Hole
Covers
(Not Shown)
Battery Knob
Spring Coil
(Not Shown)
Volume
Switch Knob
(Not Shown)
Display Eject
Latch (Not
Shown)
4 each
2 each
1 each
1 each
RJ11 Jack
Assembly
(Not Shown)
Rubber Feet
(Not Shown)
1 each
2 each
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Illustrated Parts Catalog
Presario 1900 Series
System Unit
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Hardware and
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
Miscellaneous Parts
Description Spare
Part
Number
1. AC 45W
Adapter
2. Integrated
10/100BaseT
358976001
140663-
001
Ethernet Port
Replicator
Miscellaneous
Screw Kit
159399-
001
(Not Shown)
Y Cable
Assembly
102422-
001
(Not Shown)
Configure to
Order
Maintenance & Service Guide
117894-001 US
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Illustrated Parts Catalog
Documentation and Software
Presario 1900 Series
System Unit
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Hardware and
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
Configure to
Order
Description Spare Part Number
Quick Restore CD 1
Quick Restore CD 2
US/PR
Mexico
APD
PRC
Korea
AUS
Japan
UK
France
Italy
Belgium
Not Available
169298-001
169298-161
169298-371
169298-AA1
169298-AD1
169298-371
169298-291
169298-031
169298-051
169298-061
169298-AK1
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 Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Illustrated Parts Catalog
Configure To Order Features
Compaq Presario 1900T Portable Computer Configure To Order Features
Processors
System Memory
Celeron 500 uPGA2
Pentium III 500 uPGA2
100MHz 64 SD (down)
100MHz 96SD (64down + 32up)
100MHz 128SD (64down + 64up)
Diskette Drive
Standard 3.5" Floppy
CD-ROM 24X CD-ROM Drive
6X DVD Drive
Hard Drive
6.0-GB
12.0-GB
Miscellaneous
Miscellaneous Overpack Box
POD Label
Software
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 Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
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
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
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
Compaq Discovery 1900 Series Portable Computer
Models
Display
Processor
Hard Drive
Memory
Video Card
Modem
CD Drive
Model
XL160
12. 1" TFT 12. 1" TFT
Intel Celeron/450-
MHz
w/128K Cache
6.0-GB 6.0-GB
64-MB 64-MB
Mobility M1 (8-MB) Mobility M1 (8-MB)
56.0 Kbps PCI
Data/Fax-I
24X CD-ROM 6X DVD
Model
XL161
Pentium III/450MHz
w/256K Cache
56.0 Kbps PCI
Data/Fax
Components
Right Side
Wedge
Components
Rear
Connectors
Port
Replicator
Connectors
Port
Replicator
Components
Power
Battery
Display
Processor
Hard Drive
Memory
Video Card
Modem
Li ion Li ion
Model
XL162
Model
XL163 & New
13. 3" TFT 13.3" TFT
Pentium III/450-MHz
w/256K Cache
Pentium III/500MHz
w/256K Cache
12.0-GB 6.0-GB or 12.0-GB
64-MB 64-MB
Mobility M1 (8-MB) Mobility M1 (8-MB)
56.0 Kbps PCI
Data/Fax -I
56.0 Kbps PCI
Data/Fax
Management
DVD or CD
Drive
Battery
Display
Processor
6X DVD 6X DVD
Li ion Li ion
Model
XL1
12.1" TFT or 13. 3"
Model
XL165
13. 3" TFT
TFT
Pentium III/450-
MHz
Pentium III/500-MHz
w/128K Cache
w/256K Cache
or
Pentium III/500MHz
w/256K Cache
Hard Drive
Memory
Video Card
Modem
DVD Drive
Battery
6.0-GB or 12.0-GB 6.0-GB
64-MB 64-MB
Mobility M1 (8-MB) Mobility M1 (8-MB)
K-56.0 Kbps PCI
Data/Fax or
56.0 Kbps PCI
Data/Fax
(International)
56.0 Kbps PCI
Data/Fax or
56.0 Kbps PCI
Data/Fax
(International)
6X DVD Drive 6X DVD Drive
Li ion Li ion
Configure To Order (CTOs)
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
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
Right Side
Wedge
Front of Unit
1. Display 9. TouchPad
2.
Backlight
Switch
10. Left
TouchPad
Button
Button
3.Instant
Internet
Access
11. Power
(On/Off)
Light
Button
4.Instant
Search
Button
5. Power
(On/Off)
12. Scroll
(Up/Down)
Button
13. Battery
Charge Light
Button
6. Instant
ECommerce
14. Display
Panel Release
Button
Components
Rear
Connectors
Port
Replicator
Connectors
Port
Replicator
Components
Power
Management
(or
Favorite
Web site)
Button
7. Instant
E-Mail
Button
8.
Keyboard
15. Right
TouchPad
Button
16.Integrated
Speakers
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
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
Status
Panel
Lights
1. AC
Adapter
Light
2. Num
Lock
Light
3. Caps
Lock
Light
4.
Scroll
Lock
Light
Right Side
Wedge
Components
Rear
Connectors
Port
Replicator
Connectors
Port
Replicator
Components
Power
Management
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
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
Left Side
Components
1. Security
Lock
2. Air Vent
3. PC Card
Slots
4. PC Card
Eject Levers
5. Hard Drive
Components
Right Side
Wedge
Components
Rear
Connectors
Port
Replicator
Connectors
Port
Replicator
Components
Power
Management
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
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
Right Side
Components
1. Battery
Compartment
2. Volume
Up/Down
Button
3. Headphone
Jack
4.
Microphone
Jack
5. Air Vent
Components
Right Side
Wedge
Components
Rear
Connectors
Port
Replicator
Connectors
Port
Replicator
Components
Power
Management
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
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
Bottom
of Unit
1. Wedge
Interface
Connector
2.
Keyboard
Eject
Switch
3. Battery
Release
Lever
Wedge
Components
Right Side
Wedge
Components
Rear
Connectors
Port
Replicator
Connectors
Port
Replicator
Components
Power
Management
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
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
Left Side and
Top
Components
of the
Removable
Drive Wedge
1. DVD Drive or
CD ROM Drive
2. Wedge Release
Button
3. System to
Wedge Interface
Connector
4. Alignment Pins
Wedge
Components
Right Side
Wedge
Components
Rear
Connectors
Port
Replicator
Connectors
Port
Replicator
Components
Power
Management
For the
Presario
1900 XL
Series, the
wedge is
serviced as
a one
Note:
component.
Consult
repair
technician
prior to
opening
wedge.
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
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
Right Side
Right Side
Components
of the
Removable
Drive
Wedge
1. Wedge
Release
Button
2. Diskette
Drive or LS120 Drive
Slot
3. Diskette
Drive or LS120 Drive
Eject Button
Wedge
Components
Back
Connectors
Port
Replicator
Connectors
Port
Replicator
Components
Power
Management
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
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
Rear
Connectors
1. Modem Jack
2. USB Port
3.
Keyboard/Mouse
Port
4. Serial Port
5. Parallel Port
6. External
Monitor Port
7. AC Adapter
Components
Right Side
Wedge
Components
Rear
Connectors
Port
Replicator
Connectors
Port
Replicator
Components
Power
Management
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Product Description
Models and
Features
Controls and
Lights
Status Panel
Left Side
Components
Right Side
Components
Bottom of
Unit
Left Side
and Top
Integrated 10/100BaseT
Ethernet Port Replicator
Connectors
1. Keyboard/Mouse
2. AC Adapter
3. Serial Port
4. Parallel Port
5. External Monitor Port
6. Local Area Network (LAN)
7. Keyboard/Mouse
8. USB Port
9. MIDI/Game Pad/Joystick Port
10. Security Lock
Wedge
Components
Right Side
Wedge
Components
Rear
Connectors
Port
Replicator
Connectors
Port
Replicator
Components
Power
Management
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
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
CAUTION: The computer power switch
should be turned off before you connect or
disconnect the port replicator. Damage may
occur to the computer if it is "hot" plugged to
the port replicator.
Integrated
10/100BaseT
Ethernet Port
Replicator
Components
1. Port
Replicator
Interface
Connector
2. Port
Replicator
Release Button
3.
Keyboard/Mouse
Connector
Right Side
Wedge
Components
Rear
Connectors
Port
Replicator
Connectors
Port
Replicator
Components
Power
Management
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Product Description
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Models and
Features
Controls and
Lights
Status Panel
Left Side
Components
Right Side
Components
Bottom of
Unit
Left Side
and Top
Wedge
Compaq Presario 1900 Series Portable Computers are equipped with Advanced Power Management (APM). This
management system allows you to conserve battery power and customize the power saving settings to suit your individual
needs.
● Power Management Settings
● Sleep
● Hibernation
● Rebooting After a Lockup
● Servicing Your Computer - Full Off Mode
Power Management Settings
Depending on your patterns of computer use, you can set different conditions, or Power Schemes,
under which the computer will go into Sleep mode. The optional settings are Home/Office Desk ,
Portable/Laptop , and Always On .
From the default settings, you can change the following settings.
Components
Right Side
Wedge
Components
Rear
Connectors
Port
Replicator
Connectors
Port
Replicator
Components
Power
Management
● When the computer goes into Sleep (Standby) mode
● When the screen times out and goes blank
● When the hard drive slows down
NOTE:
The setting for the hard drive must be less than or equal to the setting for the computer.
If you are connected to a network, Compaq recommends you set System Standby to
IMPORTANT:
Never .
Sleep
Sleep mode is a low power mode, also referred to as Standby mode.
CAUTION: While in Sleep mode, your computer will maintain system information and open
files. Unsaved information will be lost if you turn off your system prior to system wakeup, or if you lose power while using the AC adapter .
Hibernation Mode
Hibernation mode occurs by pressing the Power button once. Your computer saves the content of your computer
memory to the hard drive. This is followed by the computer turning off.
The following table shows the conditions and indicators for getting in and out of the various power modes: Sleep,
Hibernation, and Off.
Mode To Start To End Indicators
Sleep
Manual - Fn+F4
Press any key or
Flashing Power LED
Hibernate
key combination
Time-Out Default 15 minutes. If using
battery power, system
will not go to Sleep if
on AC power
Manual - Press Power
Button once
Time Out Default - if
low battery or after 1
hour of Sleep (system
will not Hibernate if on
move the
mouse
Press Power
button once
No Power LED,
blank screen
AC power)
Off
Perform normal
Windows shutdown
Press Power
button once
No Power LED,
blank screen
using the Start
button, or press and
hold down the Power
button for 4 seconds
Rebooting After a Lockup
Occasionally you may encounter a non-working keyboard or a locked screen. To restart your
computer, press and hold down the Power button for at least four seconds. This will cause a manual shutdown. Press the
Power button once to start the computer.
If the computer still does not restart, follow these steps:
1. Press the Power button and hold it for four seconds to shut the computer down.
2. Remove the battery and unplug the AC power for at least 30 seconds.
3. Reinsert the battery or reconnect AC power and press the Power button once to restart.
Full Off (Main Power Off) Mode
If you need to install or replace components in your computer, you must turn the computer off completely . Follow the
instructions above for putting the computer into Standard Off mode. Unplug the computer electrical cord from the outlet
and remove the battery if installed.
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Pin Assignments
This appendix provides connector pin assignment tables for Compaq Presario 1900
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
Connector Pin Signal
1
2
3
Carrier Detect
Receive Data
Transmit Data
4
5
6
7
8
9
Data Terminal Ready
Signal Ground
Data Set Ready
Ready to Send
Clear to Send
Ring Indicator
Keyboard/Mouse Connector
Connector Pin Signal
1
Data
2
3
4
5
6
Not defined
Ground
+5 VDC
Clock
Not defined
External VGA Monitor Connector
Connector Pin Signal
1
Red Analog
2
3
4
5
6
7
8
9
Green Analog
Blue Analog
Not connected
Ground
Ground Analog
Ground Analog
Ground Analog
Not connected
10
11
12
13
14
15
Ground
Monitor Detect
DDC2B Data
Horizontal Sync
Vertical Sync
DDC2B Clock
Universal Serial Bus Connector
Connector Pin Signal
1
Ground
2 D+
3 D-
4 Power
Modem Connector
Connector Pin Signal
1
Unused
2
3
4
Unused
Tip
Ring
5
6
Unused
Unused
This information was not available at time of publication.
Port Replicator Connector
Pin Signal Pin Signal Pin Signal Pin Signal
This information was not available at time of publication.
LAN Connector
United States December 11, 2002
1.800.AT.COMPAQ
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
This section explains the removal and replacement procedures for the computer.
Electrostatic
Discharge
Serial
Number
Service
Report the
Considerations
computer
Cables and
Connectors
serial
number to
Compaq
Preparing the
when
Computer for
Disassembly
Battery Pack
Hard Drive
requesting
information
or ordering
spare
parts. The
Keyboard
Memory
Module
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
serial
number is
located on
bottom of
unit.
Battery
Charger Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
privacy statement
legal notices
Compaq logo: Link to
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic Discharge
A sudden discharge of static electricity from a finger or other conductor can
destroy static-sensitive devices or microcircuitry. Often the spark is neither
felt nor heard, but damage occurs. An electronic device exposed to
electrostatic discharge (ESD) may not be affected at all and will work
perfectly throughout a normal cycle. Although, it may function normally for a
while, then degrade in the internal layers, reducing its life expectancy.
Networks built into many integrated circuits provide some protection, but in
many cases, the discharge contains enough power to alter device parameters
or melt silicon junctions.
Generating Static
The table shows how different activities generate static electricity and at
different electrostatic voltage levels.
Typical Electrostatic Voltages
Relative Humidity
Event 10% 40% 55%
Walking across carpet 35,000 V 15,000 V 7,500 V
Walking across vinyl floor 12,000 V 5,000 V 3,000 V
Motions of bench worker 6,000 V 800 V 400 V
Removing DIPS from plastic tubes 2,000 V 700 V 400 V
Removing DIPS from vinyl trays 11,500 V 4,000 V 2,000 V
Removing DIPS from Styrofoam 14,500 V 5,000 V 3,500 V
Removing bubble pack from PCBs 26,000 V 20,000 V 7,000 V
Packing PCBs in foam-lined box 21,000 V 11,000 V 5,000 V
NOTE: 700 volts can degrade a product.
Return to Removal & Replacement Procedures.
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replcement Procedures
Service Considerations
Listed below are some of the considerations that you should keep in mind
during the disassembly and assembly of the computer.
Tool and Software Requirements
To service the computer, you need the following items:
● 5 millimeter nut drivers (for screwlocks and standoffs)
● Small, Phillips (P-Zero) screwdriver
● Small, standard screwdriver
● Small, pair of tweezers
● Diagnostics software
Screws
The screws used in the computer are not interchangeable. If an incorrect
screw is used during the reassembly process, it can damage the unit. Compaq
strongly recommends that all screws removed during disassembly be kept
with the part that was removed, then returned to their proper locations.
IMPORTANT:
placed away from the work area to prevent damage.
Return to Removal & Replacement Procedures.
As each subassembly is removed from the computer, it should be
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Cables and Connectors
Most cables used throughout the unit are ribbon cables. Cables must be handled with
extreme care to prevent damage. Apply only the tension required to seat or unseat the
cables during insertion or removal from the connector. Handle cables by the connector
whenever possible. In all cases, avoid bending, twisting, or tearing the cables, and
ensure that the cables are routed in such a way that they cannot be caught or snagged
by parts being removed or replaced.
Cables
Use the following precautions when handling cables to avoid damage to the cable or
computer:
● Always handle cables by their connectors.
● Avoid bending, twisting, or pulling on the cables.
● Apply minimum required force when seating or unseating the cables from their
connectors.
● Place the cables in such a manner that they cannot be caught or snagged by parts being
removed or replaced.
● Handle flex cables with extreme care; they can tear easily.
CAUTION: When serving these computers, ensure that cables are placed in
their proper location during the reassembly process. Improper cable placement
can cause severe damage to the unit.
Select the desired illustration
Removing a cable from a ZIF Connector .
The cable position for the
Speaker Assembly.
Plastic Parts
Plastic parts can be damaged by the use of excessive force during disassembly and
reassembly. When handling the plastic parts, use care. Apply pressure only at the
points designated in the maintenance instructions.
Return to Removal & Replacement Procedures .
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Removing a
Cable from the
Zif Connector
The computer uses a
zero insertion force
(ZIF) connector for the
keyboard cable to the
system board. To
remove a cable from a
ZIF connector, lift both
corners of the ZIF
connector and slide
simultaneously with
constant light force.
CAUTION: A ZIF
connector and its
attached cable
can be easily
damaged. Handle
only the
connector slide
when removing
or replacing a
cable. Never pull
or twist on the
cable while it is
connected.
Note:
Use a pair of
tweezers to
properly
replace the
cable inside the
ZIF connectors
on the system
board. When
replacing the
keyboard, fold
the flex cables
as illustrated.
The J7
(Slender) cable
must first be
folded towards
the display.
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Preparing the Computer for Disassembly
Before beginning removal and replacement procedures, complete the following procedures:
1. Disconnect AC power and any external devices.
2. Remove the battery pack.
3. Remove any PC Cards.
4. Remove the wedge.
The battery pack should be removed before performing any internal maintenance on
IMPORTANT:
the computer.
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
WARNING: Metal objects can damage the battery pack as well as the battery contacts in
the battery compartment. To prevent damage, do not allow metal objects to touch the
battery contacts. Place only the battery pack for the Compaq Presario 1900 Series
Portable Computers into the battery compartment. Do not force the battery pack into
the bay if insertion does not occur easily.
.
CAUTION: Do not crush, puncture, or incinerate the battery pack. Do not open a battery
pack, as this damages the pack, makes it unusable, and exposes potentially harmful
battery components. There are no field-serviceable parts located inside the battery pack.
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
The Compaq Presario 1900 Series Portable Computers have several screws of various sizes
which are not interchangeable. Care must be taken during reassembly to ensure that the
NOTE:
correct screws are used in their correct location. During removal please keep respective
screws with their associate sub-assembly.
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Modem
Heatspreader
Removing the
Battery Pack
To remove the
battery pack,
complete the
following steps:
1.
Prepare the
computer for
disassembly .
2. Turn the unit
over.
3. Slide the
battery pack
release button
located in the
center of the
bottom of the
unit.
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
Board
Low Voltage
Differential
4. Locate the
battery pack on
the right, place
your thumb in
the groove, and
pull the battery
pack forward
from the unit.
To replace the battery
pack, complete the
following step.
Insert the
battery pack into
the chassis slot
located on the
right side of the
unit and push in.
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Removing
the Hard
Drive
To remove the hard
drive, complete the
following steps:
1. Prepare the
computer for
disassembly .
2. Turn the unit
over and
remove the
screw (located
in the right
corner) from
the hard drive.
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
3. Pull the hard
drive from the
chassis slot.
To replace the hard
drive, reverse the
previous procedures.
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Modem
Heatspreader
Removing the
Keyboard
To remove the
keyboard, complete the
following steps:
1. Prepare the
computer for
disassembly.
2. Partially close
the unit and
place it on its
side.
3. Slide the
keyboard eject
switch located in
the center of the
bottom of the
unit to the right
to release the
keyboard.
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
Board
Low Voltage
Next Step
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Removing the
Keyboard,
continued
4. Place the unit right side
NOTE:
up.
Gently lift up
the front of the
keyboard using
tweezers.
Disconnect the
flex cables from
the ZIF connectors
on the system
board.
To remove a
cable from a ZIF
connector, lift
both corners of
the ZIF
connector and
slide
simultaneously
with constant
light force and
then remove the
cable.
5. Lift the keyboard
out of the chassis.
To replace the
keyboard, reverse the
previous procedures.
Return to
Removal and
Replacement
Procedures .
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory Module
Removing the
Memory Module
To remove the
memory module,
complete the
following steps:
Prepare the
1.
computer for
disassembly.
2. Release and lift
up the
keyboard .
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
3. Pull side levers
to release the
memory
module, then
unplug the
memory
module from
the system
board.
To replace the
memory module,
reverse the previous
procedures.
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Modem
Removing the
Modem
To remove the modem,
complete the following
steps:
1. Prepare the
computer for
disassembly.
2. Release and lift
up the keyboard.
3. Remove two
screws securing
the modem and
pull the modem
off the connector
on the system
board.
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
Board
Next Step
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Removing the Modem,
continued
4. Disconnect the
modem cable from the
modem, and lift the
modem from the
chassis.
To replace the modem,
reverse the previous
procedures.
Return to
Removal &
Replacement
Procedures.
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Removing the
Heatspreader
with Thermal
Pad
To remove the
heatspreader with
thermal pad, complete
the following steps:
Prepare the
1.
computer for
disassembly.
2. Release and lift
the keyboard.
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
3. Remove two
screws from the
smaller half of
the heatspreader
with thermal
pad. You will
remove eight
screws total to
remove
heatspreader.
When replacing
the
heatspreader,
ensure that the
NOTE:
thermal pad
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
under the
heatspreader is
properly
replaced.
Next Step
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Removing the
Heatspreader
with Thermal
Pad (continued)
1. Prepare the
computer for
disassembly.
2. Release and lift
the keyboard.
3. Remove screws
from the smaller
half of the
heatspreader.
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
Board
4. Remove four
screws from the
larger half of the
heatspreader.
Review next step
before removing
heatspreader.
When replacing
the
heatspreader,
ensure that the
NOTE:
thermal pad
under the
heatspreader is
properly
replaced.
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
Diskette Drive
Next Step
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Removing the
Heatspreader
with Thermal
Pad (continued)
1. Prepare the
computer for
disassembly.
2. Release and lift
the keyboard.
3. Remove the
smaller half of
the
heatspreader.
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
Board
Low Voltage
Differential
Signal Board
4. Remove the
larger half of the
heatspreader.
5. Remove two
screws from
heatspreader,
disconnect cable
from fan
assembly, and
then lift from
chassis.
When replacing
the
heatspreader,
ensure that the
NOTE:
thermal pad
under the
heatspreader is
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
Diskette Drive
properly
replaced.
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Modem
Heatspreader
Processor
Removing the
Processor
To remove the processor,
complete the following
steps:
1. Prepare the computer
for disassembly.
2. Release and lift the
keyboard.
3. Remove the
heatspreader with
thermal pad.
4. Remove the
processor as shown
in illustration if your
processor is this
type. To remove
processor, follow
these steps:
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
A. Place tip of
standard
screwdriver in
center
slot .
B. Twist screwdriver
toward the word
"FREE"
until it snaps.
C. Lift processor from
the
chassis .
If your processor is
not this type, refer to
next page for
instructions.
To replace processor,
reverse previous
removal procedures.
System Board
Speaker
Assembly
DVD or CD
Drive
IMPORTANT:
WARNING:
The Pentium
The
bottom of
the
processor
contains
socket
pins
which can
be easily
damaged,
if not
properly
removed.
Processor
may be very
hot when
the unit has
been
running.
Allow the
processor to
cool before
handling it.
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Removing the
Processor
(continued)
To remove the processor,
complete the following
steps:
1. Prepare the computer
for disassembly.
2. Release and lift the
keyboard.
3. Remove the
heatspreader with
thermal pad.
Module
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
4. Remove the
processor as shown
in illustration if your
processor is this
type. To remove
processor, follow
these steps:
A. Place tip of
standard
screwdriver in
screw .
B. Turn screwdriver
toward the
number
"0."
C. Lift processor from
the
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
chassis .
If your processor is
not this type, refer to
previous page for
instructions.
WARNING:
The Pentium
Processor
may be very
hot when
the unit has
been
running.
Allow the
processor to
cool before
handling it.
IMPORTANT:
The
bottom of
the
processor
contains
socket
pins
which can
be easily
damaged,
if not
properly
removed.
Replace processor by
following these
procedures:
A. Fully align the
processor
connector with the
system board.
B. Insert and press
down
carefully on the
processor in the
proper
connectors.
C. Turn screwdriver
toward
the number "1."
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Removing the
13.3 inch
Display Panel
Assembly
To remove the
13.3 inch display
panel assembly,
complete the
following steps:
Prepare the
1.
computer for
disassembly.
2. Remove the
keyboard.
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
Board
3. Close the display
panel assembly
to access the
hinge covers
from the rear of
the unit. Using
tweezers, gently
lift from the
bottom edge of
the hinge
covers. Lift the
hinge covers off
the unit.
Use a pair
of tweezers
to properly
NOTE:
remove the
display
hinges from
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
the unit.
Next Step
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Removing
the 13.3
inch Display
Panel
Assembly,
continued
4. Open the
display panel
assembly and
remove the
screw from the
backlight
cable.
Disconnect the
backlight cable
from the ZIF
connector on
the system
board.
Next Step
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Removing the
13.3 inch Display
Panel Assembly,
continued
5. Disconnect the data
cable from the LIF
connector on the Low
Voltage Differential
Signal (LVDS) board.
Next Step
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Removing the
13.3 inch Display
Panel Assembly,
continued
6. Close the display panel
assembly.
7. Remove the hinge
screws on each side
and a clamp (right
side) on top of the
base pan assembly.
Next Step
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Removing the
13.3 inch Display
Panel Assembly,
continued
8. Remove three hinge
screws (rear of unit)
from each side of the
base pan assembly.
Next Step
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Removing the
13.3 inch Display
Panel Assembly,
continued
9. Gently pull the flex
cables attached to the
display panel assembly
through the slot on the
Upper CPU cover and
remove the display
assembly with flex
cables attached from
the chassis.
To replace the display
panel assembly,
reverse the previous
procedures.
Return to
Removal and
Replacement
Procedures.
Compaq logo: Link to
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SERVICES | SUPPORT |
CONTACT US | SEARCH
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Removing the
Upper CPU
Cover with
Palmrest and
TouchPad
To remove the Upper
CPU Cover with Palmrest
and TouchPad, complete
the following steps:
1. Prepare the
computer for
disassembly.
2. Remove the
keyboard.
Module
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
Board
3. Remove the
Heatspreader.
4. Remove the
display assembly
with flex cables
attached.
5. Remove four
screws located at
the top of the
Upper CPU Cover
with Palmrest and
TouchPad.
6. Remove a fifth
screw located just
to the top right of
the fan. (Not
shown).
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
Next Step
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Removing the
Upper CPU Cover
with Palmrest
and TouchPad,
continued
6. Turn the unit upside
down.
7. Remove two rubber
feet and seven screws
located at the bottom
of the unit which
secures the Upper CPU
Cover with Palmrest
and TouchPad.
8. Remove two screws on
the rear of the unit.
Next Step
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Removing the
Upper CPU Cover
with Palmrest
and TouchPad,
continued
9. Turn the unit right side
up.
10. Disconnect the
TouchPad cable from
the connector on the
system board.
To replace the Upper
CPU Cover with
Palmrest and
TouchPad, reverse the
previous procedures.
Return to
Replacement
Removal &
Procedures.
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Modem
Removing the Hard
Drive/Battery
Charger Board
To remove the hard
drive/battery charger
board, complete the
following steps:
Prepare the computer for
1.
disassembly.
2. Remove the keyboard.
3. Remove the heatspreader.
4. Remove the display
assembly with flex cables
attached.
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery Charger
Board
Converter
Board
5. Remove the Upper CPU
Cover with
Palmrest/TouchPad/Fan.
6. Remove four screws from
the hard drive/battery
charger board located front
center portion of the
chassis.
To replace the hard
drive/battery charger board
reverse the previous
procedures.
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Removing
the Converter
Board
To remove the
converter board,
complete the following
steps:
1. Prepare the
computer for
disassembly .
2. Remove the
keyboard .
3. Remove the
display panel
assembly.
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
Board
Low Voltage
Differential
4. Remove the
Upper CPU
cover with
Palmrest Cover
and TouchPad.
5. Remove the
hard drive.
6. Remove the
modem.
7. Remove two
screws and
disconnect the
converter board
from the
system board
connector and
remove from
the chassis.
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
To replace the
converter board,
reverse the previous
procedures.
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Removing the
Low Voltage
Differential
Signal (LVDS)
Interface
Board
To remove the LVDS
Interface Board,
complete the following
steps:
1. Prepare the
computer for
disassembly.
2. Remove the
keyboard.
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
3. Remove the
heatspreader.
4. Remove the two
screws from the
LVDS Interface
Board and lift
from the chassis.
To replace the LVDS
Interface Board reverse
the previous
procedures.
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Removing the
Fan Assembly
To remove the fan
assembly, complete
the following steps:
Prepare the
1.
computer for
disassembly.
2. Remove the
keyboard.
3. Remove the
heatspreader. Fan
is attached
to heatspreader
assembly.
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
4. Disconnect the fan
cable and lift the
fan assembly from
the slot on the
system board.
To replace the fan
assembly, reverse the
previous procedures.
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Removing the
System Board
To remove the system board,
complete the following steps:
1.
Prepare the computer for
disassembly.
2. Remove the keyboard.
3. Remove the display panel
assembly.
4. Remove the heatspreader.
5. Remove the processor.
Module
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Next Step
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Removing the PC Card
Slot
1. Remove the Upper CPU
cover with Palmrest
Cover and TouchPad.
2. Remove the hard drive.
3. Remove the modem.
4. Remove the hard
drive/battery charger
board.
5. Remove the converter
board.
6. Remove the PC Card
Slot.
Next Step
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removing the
Display Panel
Assembly Hinge
Bracket
12. Remove two screws
from the Display
Panel Assembly Hinge
Bracket with hinge
to base ground clip
and lift off the
chassis.
Next Step
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
(Illustration not shown but is
forthcoming.)
Removing the System
Board (Continued)
13. Remove the right hinge bracket before
removing the DC IN board.
14. Disconnect cable from DC IN board.
15. Lift the RJ11 connector off the guide
posts
located on the right side on the
chassis.
Return to Removal and Replacement
Procedures.
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Removing the
Speaker
Assembly
To remove the
speaker assembly,
complete the
following steps:
Prepare the
1.
computer for
disassembly.
2. Remove the
keyboard .
3. Remove the
display panel
assembly.
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
Board
4. Remove the
Upper CPU cover
with Palmrest
Cover and
TouchPad.
5. Remove two
screws from the
speaker
assembly,
disconnect the
speaker cables
from the system
board, and lift
out of the unit.
To replace the speaker
assembly, reverse the
previous procedures.
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Modem
Heatspreader
Processor
Display Panel
Assembly
Removing the
DVD or CDROM Drive
To remove the CD-ROM
or the DVD Drive with
shield attached,
complete the following
steps:
1. Prepare the
computer for
disassembly.
2. Disassemble the
wedge.
3. Remove two
screws at the
rear of the CDROM or DVD
Drive and lift the
CD-ROM or DVD
Drive with shield
attached off the
connector
wedge.
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
To replace the CD-ROM
or DVD Drive with
shield attached,
reverse the previous
procedures.
Next Step
System Board
Speaker
Assembly
DVD or CDROM Drive
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Removal and Replacement
Procedures
Removing the
DVD or CD-ROM
Drive, continued
To remove the CD-ROM or
DVD Drive
the following step:
4. Remove the screw which
secure the CD-ROM or DVD
Drive
To replace the CD-ROM or
DVD Drive shield, reverse the
previous procedure.
Return to Removal and
Replacement Procedures.
shield.
shield perform
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Troubleshooting
Presario 1900 Series
Preliminary
Steps
Clearing the
Power-On
Password
Power-On Self
Test (POST)
Compaq
Diagnostics
Diagnostic Error
Codes
Troubleshooting
Without
Diagnostics
This section covers troubleshooting information
for the Compaq Presario 1900 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
Solving Minor
Problems
Contacting
Compaq
Support
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.
NOTE:
If the problem is
intermittent, check
the computer several
times to verify that
the problem is
solved.
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Troubleshooting
Preliminary Steps
Before running POST, complete the following preliminary steps:
1. If a power-on password has been established, type the password and press the Enter
key. If the password is not known,
clear the password.
2. Run Compaq diagnostics.
3. Turn off the computer and its external devices.
4. Disconnect any external devices that you do not want to test. Do not disconnect the
printer if you want to test it or use it to log error messages.
If the problem only occurs when an external device is connected
to the computer, the problem may be related to the external
IMPORTANT:
device or its cable. Verify this by running POST with and without
the external device connected.
Install loopback plugs in the serial and parallel connectors if you would like to test these
5.
ports.
6. Ensure the hard drive is installed in the computer.
7. Ensure that the battery pack is inserted in the computer and the computer is connected to
an external AC power source.
When the preliminary steps are completed, you are ready to run
POST .
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Troubleshooting
Running POST
To run POST, complete the following steps:
Turn off the computer, then turn on the computer.
If POST does not detect any errors, the computer will not beep. This indicates successful
completion of POST test. POST has run successfully and boots from the hard drive (or from a
bootable diskette if one is installed in the diskette drive).
If POST detects errors, the errors are indicated by screen and/or audible messages. Refer to
"Power-On Self-Test (POST) Codes" in the tables for a list of POST codes and their relevant
descriptions.
If the system is not functioning well enough to run POST, or if the display is not functioning
NOTE:
well enough to show POST error messages, refer to the Troubleshooting tables.
Power-On Self-Test Messages
102-System Board Failure
Probable Cause Recommended Action
DMA, timers, etc. Replace the system board.
162-System Options Not Set
Probable Cause Recommended Action
Configuration incorrect Run Computer Setup.
CMOS reflects that an invalid
Run Computer Setup.
configuration has been set.
RAM failure 1. Replace the memory modules.
2. Replace the system board.
Memory test data error 1. Replace the memory modules.
2. Replace the system board.
XX000YZZ RAM failure Replace the system board.
XX000YZZ 201-Memory Error
Probable Cause Recommended Action
301-Keyboard Error
Probable Cause Recommended Action
Keyboard failure 1. Ensure the keys are not depressed during POST.
2. Reconnect the keyboard with the computer off.
3. Replace the keyboard.
304-Keyboard or System Unit Error
Probable Cause Recommended Action
Keyboard or system board error 1. Replace the keyboard.
2. Replace the TouchPad or mouse.
3. Replace the system board.
601-Diskette Controller Error
Probable Cause Recommended Action
Mismatch in drive type or failure in the
1. Run Computer Checkup (TEST).
diskette controller
2. Check and/or replace cables.
3. Replace the system board.
605-Diskette Drive Error
Probable Cause Recommended Action
Mismatch in drive type Run Computer Setup.
1780-Primary Hard Drive 0 Failure
Probable Cause Recommended Action
Disk 0 failed to respond 1. Run Computer Checkup (TEST).
2. Replace the hard drive.
Hard drive format error 1. Run Computer Checkup (TEST).
2. Replace the hard drive.
1782-Hard Drive Controller
Probable Cause Recommended Action
Hard drive controller failure 1. Run Computer Setup.
2. Replace the hard drive.
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Troubleshooting
Presario 1900 Series
Clearing the
Power-on
Password
If the password is not
known, clear it by
performing the
following steps:
Turn off the computer.
1.
2. Disconnect the power
cord.
3. Remove the battery
pack .
4. Remove the keyboard.
5. Disconnect the
backlight cable from
the connector on the
system board .
6. Simultaneously make
contact with the two
pads located at R37 on
the system boarding
using a conductive
piece of material (piece
of wire or tool) or
remove the RTC
battery for 10 seconds,
clearing the password.
7. Reassemble the
computer.
8. Turn on the computer
to verify that the poweron password has been
cleared. If it has not
been cleared, repeat
Steps 1 through 7.
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Troubleshooting
Compaq Diagnostics
Compaq Diagnostics is installed on the hard drive of the computer. Run the
Diagnostics utilities when you want to view or test system information and if
you have installed or connected devices. If you run Compaq Diagnostics from
a diskette, ensure that it is version 10.11 or later.
The Diagnostics menu includes the following utilities:
■ Perform Computer Checkup (TEST).
■ View System Information (INSPECT).
■ Prepare Computer for a Compaq Service Call (RemotePaq).
If you have a difficult problem that seems unsolvable, run the Diagnostics
utilities before calling for support. Run Computer Checkup and select to save
the device list to a file to print or to save the log of errors. Run the View
System Information (INSPECT) utility and select to print or save that
information. Have the files or the printed information available when you call
for support.
Computer Checkup (TEST)
Computer Checkup (TEST) determines whether the various computer
components and devices are recognized by the system and are functioning
properly. You can display, print, or save the information generated by
Computer Checkup.
Follow these steps to run Computer Checkup:
1. Plug the computer into an external power source. (A low battery
condition could interrupt the program.)
2. Turn on the external devices that you want to test. Connect the printer
if you want to print a log of error messages.
3. Insert the Compaq Diagnostics diskette in drive A.
4. Turn on or restart the computer. The computer starts from drive A, and
the Diagnostics Welcome screen appears.
5. Press Enter to continue. The Diagnostics menu appears.
6. Select Computer Checkup from the Diagnostics menu. A Test Option
menu appears.
7. Select View the Device List from the Test Option menu. A list of the
installed Compaq devices appears.
8. Select OK if the list of installed devices is correct. The Test Option
menu appears.
If the list is incorrect, ensure that any new devices are installed
NOTE:
properly.
9. Select one of the following from the Test Option menu:
■ Quick Check Diagnostics. Runs a quick, general test on
each device with a minimal number of prompts. If errors
occur, they are displayed when the testing is complete. You
cannot print or save the error messages.
■ Automatic Diagnostics. Runs unattended, maximum testing
of each device with minimal prompts. You can choose the
amount of times to run the tests, stop on errors, or print/save
a log of errors.
■ Prompted Diagnostics. Allows maximum control over
testing the devices. You can choose attended or unattended
testing, decide to stop on errors, or choose to print/save a log
of errors.
10. Follow the instructions on the screen as the devices are tested. When
testing is complete, the Test
Option menu appears.
11. Exit the Test Option menu.
12. Exit the Diagnostics menu.
View System Information (INSPECT)
The View System Information (INSPECT) utility provides information about
the computer and installed or connected devices. You can display, print, or
save the information.
Follow these steps to run View System Information (INSPECT) from the
Compaq Diagnostics diskette:
1. Turn on the external devices that you want to test. Connect the printer
if you want to print the information.
2. Insert the Compaq Diagnostics diskette in drive A.
3. Turn on or restart the computer. The computer starts from drive A, and
the Diagnostics Welcome screen appears.
4. Press Enter to continue. The Diagnostics menu appears.
5. Select View System Information (INSPECT) from the Diagnostics
menu.
6. Select the item you want to view from the following list:
System Memory
ROM Audio
Keyboard Operating system
System ports System files
System storage Windows files
Graphics
7. Follow the instructions on the screen to cycle through the screens, to
return to the list and choose another item, or to print the information.
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Troubleshooting
Contacting Compaq Support
Obtain the following information before contacting Compaq Reseller Support:
● Product name
● Product serial number
● Purchase date
● Conditions under which the problem occurred
● Any error messages that have occurred
● Hardware configuration
● Type of printer connected
● Hardware/software being used
● Printed result of Computer Checkup (TEST)
● Printed copies of CONFIG.SYS and AUTOEXEC.BAT files, if possible
Shipping Preparation
To ship the computer, complete the following steps:
1. Back up the critical hard drive files. Ensure that backup tapes/diskette
are not exposed to electrical or magnetic fields while stored in transit.
2. Turn off the computer and external devices.
3. Disconnect the external devices from their power sources, then from the
computer.
IMPORTANT:
4. Close the display and all exterior doors of the computer.
Ensure that there is no diskette in the diskette drive and that
there are no PC Cards in the PC slots.
5. Pack the computer with sufficient packing material to protect it. Use the
original packing box or similar packaging.
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Troubleshooting
Diagnostic Error Codes
Diagnostic error codes occur if the system recognizes a problem while
running the Compaq Diagnostic program. These error codes help identify
possibly defective subassemblies.
The following tables list error codes, a description of the error condition, and the action required
to resolve the error condition.
IMPORTANT:
Retest the system after completing each step. If the problem is resolved, do not
proceed with the remaining steps.
For the removal and replacement of a particular subassembly, see the section
for Removal and Replacement Procedures.
Select error codes by number or type:
101 through 114 Processor Test
200 through 215 Memory Test
300 through 304 Keyboard Test
401 through 403 Parallel Printer Test
600 through 699 Diskette Drive or LS-120 Test
1101 Serial Test
1701 through 1736 Hard Drive Test
501 through 516 Video Test
2402 through 2456 Audio Test
2458 through 2480 Touch Pad Pointing Device Test
3206 CD/DVD Test
8601 through 8602
3301 through 6623
Processor Test Error Codes
Error
Code Description Recommended Action
101-xx Failed CPU Test. Replace the processor and retest.
102-xx Coprocessor or Weitek Error Run the Configuration and Diagnostics
Utilities.
Replace the processor board and retest.
103-xx Failed DMA Page Registers Test. Replace the system board and retest.
104-xx Failed Interrupt Controller Master
Test.
105-xx Port 61 Error.
106-xx Failed Keyboard Controller Self Test.
107-xx Failed CMOS RAM Test.
108-xx Failed CMOS Interrupt Test.
109-xx Failed CMOS Clock Test.
110-xx Failed Programmable Timer Load Data
Test.
113-xx Failed Protected Mode Test.
114-01 Failed Speaker Test. 1. Check system configuration.
2. Verify cable connections to speaker.
3. Replace the system board and retest.
Memory Test Error Codes
200 -xx Failed Memory Machine ID Test. 1. Flash the system ROM and retest.
202-xx Failed Memory System ROM
Checksum.
2. Replace the system board and retest.
203-xx Failed Write/Read Test. 1. Remove the memory module and retest.
204-xx Failed Address Test.
211-xx Failed Random Pattern Test.
214-xx Failed Noise Test.
215-xx Failed Random Address Test.
Keyboard Test Error Codes
300 -xx Failed ID Test. 1. Check the keyboard connection. If
301-xx Failed Selftest/Interface Test.
302-xx Failed Individual Key Test.
304-xx Failed Keyboard Repeat Test.
Parallel Printer Test Error Codes
401 -xx Failed Printer or not connected. 1. Connect the printer.
402-xx Failed Port Test.
403-xx Failed Printer Pattern Test.
2. Install a new memory module and
retest.
disconnected, turn off the computer and
connect the keyboard.
2. Replace the keyboard and retest.
3. Replace the system board and retest.
2. Check power to the printer.
3. Install the loop-back connector and
retest.
4. Check port and IRQ configuration.
5. Replace the system board and retest.
Diskette Drive Test
600 -xx
601-xx Failed Diskette Format.
602-xx Failed Diskette Read Test.
603-xx
604-xx Failed Diskette Random Read Test.
605-xx Failed Diskette ID Media.
606-xx Failed Diskette Speed Test.
609-xx Failed Diskette Reset Controller Test.
610-xx Failed Diskette Change Line Test.
697-xx Diskette Type Error
698-xx
699-xx
Failed Diskette ID Drive-types Test. 1. Replace the diskette media and retest.
Failed Diskette Write, Read, Compare
Test.
Diskette Drive Speed not within
Limits.
Diskette Drive/Media ID Error 1. Replace media.
2. Check and/or replace the diskette power
and
signal cables and retest.
3. Replace the diskette drive and retest.
4. Replace the system board and retest.
2. Run the Configuration and Diagnostics
Utilities.
Serial Test Error Codes
1101-xx
1701-xx Failed Hard Drive Format Test. 1. Run the Configuration and Diagnostics
1702-xx Failed Hard Drive Read Test.
1703-xx
1704-xx Failed Hard Drive Random-seek Test.
1705-xx Failed Hard Drive Controller Test.
1706-xx Failed Hard Drive Ready Test.
1707-xx Failed Hard Drive Recalibration Test.
1708-xx
1709-xx
Failed Serial Port Test. 1. Check port configuration
2. Replace the system board and retest.
Hard Drive Test Error Codes
Utilities
and verify drive type.
Failed Hard Drive
Write/Read/Compare Test.
Failed Hard Drive Format Bad-track
Test.
Failed Hard Drive Reset Controller
Test.
2. Verify that all secondary drives have
secondary
drive capability.
3. Replace the hard drive and retest.
4. Replace the system board and retest.
1710-xx Failed Hard Drive Park-head Test.
1715-xx Failed Hard Drive Head-select Test.
1716-xx
1717-xx Failed Hard Drive ECC* Test.
1719-xx Failed Hard Drive Power-mode Test.
1724-xx Failed Network Preparation Test.
1736-xx Failed Drive-monitoring Test.
* ECC = Error Correction Code
501-xx Failed Video Controller Test. The following apply to error codes 501-xx
502-xx Failed Video Memory Test.
503-xx Failed Video Attribute Test.
504-xx Failed Video Character-set Test.
505-xx
Failed Hard Drive Conditional Format
Test.
Video Test Error Codes
Failed Video 80 × 25 mode 9 × 14
Character-cell Test.
through 516-xx:
1. Disconnect external monitor and test
with internal LCD display.
2. Replace the display assembly and retest.
3. Replace the system board and retest.
506-xx
507-xx Failed Video 40 × 25 mode Test.
508-xx
509-xx
510-xx Failed Video 640 × 200 mode Test.
511-xx
512-xx Failed Video Gray Scale Test.
514-xx Failed Video White Screen Test.
516-xx Failed Video Noise Pattern Test.
2402 -xx Failed Video Memory Test. The following steps apply to error codes
2403-xx Failed Video Attribute Test.
2404-xx Failed Video Character-set Test.
2405-xx
2406-xx
Failed Video 80 × 25 mode 8 × 8
Character- cell Test.
Failed Video 320 × 200 mode color
set 0 Test.
Failed Video 320 × 200 mode color
set 1 Test.
Failed Video Screen Memory Page
Test.
Failed Video 80 × 25 mode 9 × 14
Character-cell Test.
Failed Video 80 × 25 mode 8 × 8
Character- cell Test.
2402-xx through 2456-xx:
1. Run the Configuration and Diagnostics
Utilities.
2. Replace the display assembly and retest.
3. Replace the system board and retest.
2408-xx
2409-xx
2410-xx Failed Video 640 × 200 mode Test.
2411-xx
2412-xx Failed Video Gray Scale Test.
2414-xx Failed Video White Screen Test.
2416-xx Failed Video Noise Pattern Test.
2418-xx Failed ECG/VGC Memory Test.
2419-xx Failed ECG/VGC ROM Checksum Test. 1. Run the Configuration and Diagnostics
2421-xx Failed ECG/VGC 640 × 200 graphics
2422-xx Failed ECG/VGC 640 × 350 16 Color
Failed Video 320 × 200 mode color
set 0 Test.
Failed Video 320 × 200 mode color
set 1 Test.
Failed Video Screen Memory Page
Test.
mode Test.
Set Test.
Utilities.
2. Disconnect external monitor and test
with
internal LCD display.
3. Replace the display assembly and retest.
4. Replace the system board and retest.
2423-xx Failed ECG/VGC 640 × 350 64 Color
Set Test.
2424-xx Failed ECG/VGC Monochrome Text
Mode Test.
2425-xx Failed ECG/VGC Monochrome
Graphics Mode Test.
2431-xx Failed 640 × 480 Graphics Test.
2432-xx Failed 320 × 200 Graphics (256 color
mode) Test.
2448-xx Failed Advanced VGA Controller Test.
2451-xx Failed 132-column Advanced VGA
Test.
2456-xx Failed Advanced VGA 256 Color
Test.
2458 -xx Failed Advanced VGA BitBLT Test. The following step applies to error codes
2458-xx through 2480-xx:
2468-xx Failed Advanced VGA DAC Test.
Replace the system board and retest.
2477-xx Failed Advanced VGA data path Test.
2478-xx Failed Advanced VGA BitBLT Test.
2480-xx Failed Advanced VGA LineDraw Test.
Audio Test Error Codes
3206 -xx Audio System Internal Error 1. Replace the system board and retest.
TouchPad/Pointing Device Interface Test Error Codes
8601 -xx Failed Mouse Test. 1. Replace the TouchPad and retest.
2. Replace the system board and retest.
8602-xx Failed Interface Test.
CD/DVD Drive Test Error Codes
3301 -xx Failed CD/DVD Drive Read Test. 1. Replace the CD/DVD and retest.
2. Verify that the speakers are connected.
3305-xx Failed CD/DVD Drive-seek Test.
6600-xx Failed ID Test.
6605-xx Failed Read Test.
6608-xx Failed Controller Test.
6623-xx Failed Random Read Test.
3. Verify that drivers are loaded and
properly
installed.
4. Replace the CD/DVD drive and retest.
5. Replace the system board and retest.
Back to top
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Troubleshooting
Troubleshooting Without Diagnostics
This section provides information about how to identify and correct some common hardware, memory, and software
problems. It also explains several types of common messages that may be displayed on the screen. The following pages
contain troubleshooting information on:
Audio Memory
Battery/Battery gauge PC Card
CD/DVD drive Power
Diskette/Diskette drive Printer
Display Touch Pad
Hard drive Keyboard/Numeric keypad
Hardware Installation
Since symptoms can appear to be similar, carefully match the symptoms of the computer malfunction against the problem
description in the Troubleshooting tables to avoid a misdiagnosis.
WARNING: To avoid a potential shock hazard during troubleshooting procedures, disconnect all power
sources before removing the keyboard cover or the display bezel.
Before Replacing Parts
Verify that cables are connected properly to the suspected defective parts.
■ Run Computer Setup after connecting external devices.
■ Verify that all required device drivers are installed.
■ Verify that all required changes have been made to the CONFIG.SYS file.
■ Verify that all required changes have been made to the AUTOEXEC.BAT file.
■ Verify that all printer drivers have been installed for each application.
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Troubleshooting
Solving PC Card Problems
Some common causes and solutions for PC Card problems are listed in the following table.
Solving PC Card Problems
Problem Probable Cause Solution(s)
When turned on, the computer
does not beep when a PC Card
is inserted.
Card is not inserted properly.
PC Card beeps are disabled.
Ensure the card is inserted
in the correct orientation.
Double-click the PC Card
icon in the Control Panel,
click the Global Settings
tab, the enable PC Card
sound effects.
Speaker is turned off or
volume is turned down.
Press volume buttons to
turn the speaker on, then
increase the volume.
PC Card drivers are not
installed.
Double click the Add New
Hardware icon in the
Control Panel for installation
instructions.
PC Card modem, fax, or
network card does not work.
Card or card driver is not
supported.
Card is not fully inserted into
the slot or is not inserted
properly.
Telephone cord is not
plugged in all the way.
Necessary drivers are not
If PC Card or drivers are not
compatible with Windows,
install drivers and use the
PC Card in MS-DOS mode.
Contact your Compaq
authorized service provider
for a list of PC Cards tested
successfully in Compaq PC
Card platforms.
Ensure the card is inserted
in the correct orientation.
Check and secure telephone
connection.
Install drivers.
PC Card modem or fax card
does not work.
Modem network PC Card
does not work.
Memory or storage card
does not work.
installed (turned on).
You are trying to access the
card using the wrong COM
See
COM port.
Specifications to verify
port.
The card conflicts with a
serial device.
See Specifications to verify
address.
The card is not supported. Use supported cards only.
Network driver is not installed or is
Install driver.
not set up properly.
Telephone cord is not properly
connected.
SRAM and flash memory cards
Verify telephone
connection.
Install driver.
require the memory card driver to be
loaded (turned on).
Flash memory cards require the
Microsoft FlashFile System to
be loaded.
Hard drives on flash mass storage
cards require the PC Card ATA driver
to be loaded.
You are trying to access the hard
drive card using the wrong drive
letter.
Double-click My
Computer to verify
the drive letter
assigned to the card.
The card is not supported. Contact your Compaq
authorized service
provider for a list of
PC Cards tested
successfully in
Compaq PC Card
platforms.
Solving Power Problems
Also see "Solving Battery and Battery Gauge Problems" in this section.
Solving Power Problems
Problem Probable Cause Solution(s)
Computer won't turn on and
Computer is not connected to
Insert battery or connect
battery pack is not inserted.
a power source.
Power cords to the external
power source are unplugged.
an external power source.
Ensure that power cords
connecting the computer
and the external power
source are plugged in
properly.
Power adapter is defective. Replace AC Adapter and
restart.
Computer turned off while it was
left unattended and the power icon
is off.
System board is defective. Replace the system board.
System initiated Hibernation
due to a critical low-battery
condition.
Replace the battery pack
with a fully charged
battery pack or connect
the computer to an
external power source.
Then turn on the
computer.
System initiated Hibernation
Turn on the computer.
after a preset timeout.
Solving Printer Problems
If you experience problems printing, run a printer self-test. Refer to the documentation provided with your printer for
instructions. If the self-test fails, it is a printer-specific problem. Also refer to the printing section of your application
documentation.
Solving Printer Problems
Problem Probable Cause Solution(s)
Printer will not turn on. The signal cable may not be
connected properly, or the
Ensure that the signal
cable is properly
printer is unplugged.
Printer will not print. Printer is not turned on or is
off line.
The device drivers for your
application are not installed.
Printer that is set up for a
network is not connected to
the network.
connected and that the
power cord is connected to
the electrical outlet.
Turn the printer on and set
it to on line.
Refer to the printer
documentation to install
the correct printer driver.
Connect the printer to the
network.
Printer cable is too long,
unshielded, or defective.
Paper tray is empty. Fill the paper tray with
Printer prints garbled information. Correct printer drivers
are not installed.
Cable is not
connected properly.
Cable is defective. Replace the printer cable
Replace the cable.
paper and set the printer
to online.
Refer to the printer
documentation to install
the correct printer driver.
Ensure that the printer
signal cable is properly
connected to the
computer.
and retest.
Solving Touch Pad/Pointing Device Problems
Some common causes and solutions for Touch Pad/pointing device problems are listed in the
following table.
Solving Touch Pad/Pointing Device Problems
Problem Cause Solution(s)
Touch Pad or mouse does not work. Incorrect or no device driver
is installed.
The device driver is not
installed in Windows.
Install the device driver
and add to the
AUTOEXEC.BAT file or
CONFIG.SYS file.
Install the Touch
Pad/mouse driver in
External mouse does not work. Mouse is not securely
connected or is connected to
an incorrect external
connector.
Touch Pad or mouse does not work
Mouse is not enabled. Enter MOUSE at the
even though the device is enabled
in Windows.
Add a line in the
Cable not properly seated in
Windows.
Ensure that the mouse is
securely connected to the
appropriate external
connector.
system prompt to activate
the mouse device driver.
AUTOEXEC.BAT file to
automatically activate the
mouse device driver each
time computer is turned
on or restarted.
Reseat cable.
Cursor skips or moves abnormally
when using the Touch Pad.
Touch Pad board.
Defective Touch Pad board. Replace Touch Pad board.
Defective system board. Replace system board.
Device driver is not correctly
installed in Windows.
The Touch Pad needs to be
cleaned.
Install the appropriate
device driver in Windows.
Clean the Touch Pad with
a cloth dampened with
alcohol or an ammoniabased glass cleaner. Wipe
up liquid with a dry cloth.
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Troubleshooting
Solving Minor Problems
Some minor problems and possible solutions are outlined in the following tables. If the problem
appears related to a software application, check the documentation provided with the software.
Solving Audio Problems
Some common audio problems and solutions are listed in the following table.
Solving Audio Problems
Problem Probable Cause Solution(s)
Computer does not beep after the Power-On
Self-Test (POST).
This is typical; it indicates successful
completion of the Power-On Self-Test
(POST).
No action is required.
Solving Battery Pack and Battery Gauge Problems
Some common causes and solutions for battery pack problems are listed in the following table. The
"Solving Power Problems" section in this chapter may also be applicable.
Solving Battery Pack and Battery Gauge Problems
Problem Probable Cause Solution(s)
Computer won't turn on when battery
pack is inserted and power cord is
unplugged.
Computer is beeping and battery LED
icon is blinking.
Battery pack is discharged. Connect the computer to an external
power source and charge the battery
pack.
Replace the battery pack with a fully
charged battery pack.
Battery charge is low. Immediately save any open file(s). Then
Check the battery connectors on the
system board to verify they are evenly
spaced and that they are not bent or
broken.
do any one of the following:
● Connect the computer to an
external power source to charge
the battery pack.
● Turn off the computer or initiate
Hibernation until you can find
another power source or charge
the battery pack.
Computer battery LED icon (front on
the unit) blinks to indicate low battery
condition, but computer does not beep.
Battery LED icon doesn't light and
battery pack won't fast charge.
You have to set the date and time every
time you turn on the computer.
Battery charge does not last as long as
expected.
Volume is turned down too low. Adjust the volume.
Battery pack is already charged. No action is necessary.
Battery pack was exposed to
temperature extremes.
Battery pack is at end of its life. Replace battery pack.
RTC battery is dead. Replace the RTC battery.
Battery is being exposed to high
temperatures or extremely cold
temperatures.
Battery has partially self-discharged. Recharge the battery. Discharge the
Allow time for the battery pack to return
to room temperature.
Keep the battery pack within the
recommended operating temperature
range 50° F to 104° F (10° C to 40° C)
or recommended storage range
-4° F to 86° F (-20° C to 30° C ).
Recharge the battery pack.
battery completely and then recharge it.
Battery pack is warm to the touch after
charging.
Battery pack operating time is far less
than the documented average
operating time.
Power management is disabled. Set a power management level in
Computer Setup.
An external device or PC Card is
draining the battery.
Normal warming has occurred due to
charging.
Power management is turned off or
disabled.
An external device or PC Card is
draining the battery.
Battery pack has partially selfdischarged.
Turn off or disconnect external devices
when not using them.
No action is required.
Enable power management in Computer
Setup and in Windows Power Properties.
Turn off or disconnect external devices
when not using them.
Condition the battery pack by fully
charging, fully discharging, then fully
recharging it.
To maintain the charge, leave battery
packs in the computer when it is
connected to external power.
If the computer is disconnected from
external power for more than two
weeks, remove battery packs from the
computer to reduce the discharge rate.
Battery pack is being exposed to high
temperatures or extremely cold
temperatures.
Keep the battery pack within the
recommended temperature ranges.
Operating: 50° F to 104° F
(10° C to 40° C)
Storage: -4° F to 86° F
(-20° C to 30° C )
Recharge the battery pack.
Solving CD/DVD Drive Problems
Some common causes and solutions for CD/DVD drive problems are listed in the following table.
Solving CD/DVD Drive Problems
Problem Probable Cause Solution(s)
CD/DVD drive cannot read a compact
disc or digital versatile disc.
Compact disc or digital versatile disc
is upside down or is improperly
inserted in the CD/DVD drive.
CD is CD Plus or Pregap/Track 0 type. Cannot read these type CDs in 24x.
Open the CD/DVD loading tray, lay the
compact disc or digital versatile disc in it
(label side up), then close the tray.
Remove the CD.
Solving Diskette and Diskette Drive Problems
Some common causes and solutions for diskette and diskette drive problems are listed in the
following table.
Solving Diskette and Diskette Drive Problems
Problem Probable Cause Solution(s)
Diskette drive cannot write to a
diskette.
Diskette is write-protected. Disable the diskette's write-
protect feature or use a
diskette that is not writeprotected.
Computer is writing to
the wrong drive.
Not enough space is left
Check the drive letter in the
path statement.
Use another diskette.
on the diskette.
Drive error has occurred. Run Computer Checkup from
the Compaq Diagnostics
diskette.
Diskette is not formatted. Format the diskette. At
the system prompt, enter
Diskette drive cannot read a
diskette.
The wrong type of diskette is
being used.
Diskette has a bad sector. Copy files to hard drive or
Drive error has occurred. Run Computer Checkup from
Diskette is not
formatted.
Cannot boot from diskette. Bootable diskette is not in
drive A.
FORMAT A:
Use the type of diskette
required by the drive.
another diskette. Reformat bad
floppy.
the Compaq Diagnostics
diskette.
Format the diskette. At the
system prompt, enter
FORMAT A:
Put the bootable diskette in
drive A.
Diskette Boot has incorrect
setting in Computer Setup.
Run Computer Setup and set
diskette as first to boot.
Solving Display Problems
This section lists some common causes and solutions for computer display and external monitor
problems.
You can perform a monitor self-test on an external VGA color or monochrome monitor by
disconnecting the monitor from the computer. To do so, complete the following steps:
1. Turn off the monitor.
2. Turn off the computer.
3. Disconnect the monitor signal cable from the computer.
4. Turn on the monitor and allow it to warm up for one minute.
The display should be white. A narrow black border may also appear on the left and right sides of
the display. Either of these displays indicates that the monitor is working properly.
Solving Display Problems
Problem Probable Cause Solution(s)
Screen is dim. Control for brightness (if
applicable) is not set properly.
Adjust the Brightness of the
display by using Fn + F7 (¯ )
or
Fn + F8 (- ).
Computer screen is in direct
Tilt display or move computer.
light.
Screen is blank. Screen save was initiated by
Power Management due to
lack of user activity.
Display has overheated. If computer is in direct sunlight,
Display is blank and the Suspend
System is in Suspend mode. Press any key or touch the
icon is flashing.
Internal display is blank and the
screen on an external monitor
Display function was switched
to the external monitor.
displays information.
Internal display flashes or has
garbled characters when
computer is connected to
external monitor.
Using 1024 × 768 or higher
resolution on external monitor
and have toggled back to
internal display, which
supports up to
Press any key or touch the
Touch Pad.
move it and allow it to cool off.
Touch Pad.
Use Fn + F2 to switch between
LCD or CRT.
Restart the computer.
The light tubes on the edge of the
display panel do not light up at all and
Power-On Self-Test (POST) completes
when the unit is powered up.**
The light tubes on the edge of the
display panel do not light up at all and
Power-On Self-Test (POST) does not
complete when the unit is powered
up.**
Backlight (brightness) cannot be
adjusted with Fn + F7 (¯ ) or
Fn + F8 (- ).***
800 × 600.
Improper backlight or display cable
connections
Defective inverter board. Replace the display assembly.
Defective display cable. Replace the display assembly.
Defective display panel. Replace the display assembly.
Defective system board. Replace the system board.
Defective system board. Replace the system board.
Improper display cable connections. 1. Reseat the display cable to the
Replace the display assembly.
system board.
2. Replace the display assembly.
Defective inverter board. Replace the display assembly.
Defective display cable. Replace the display assembly.
Defective system board. Replace the system board.
Defective inverter board. Replace the display assembly.
Defective display cable. Replace the display assembly.
Defective system board. Replace the system board.
** This problem indicates that the backlight or its power circuitry has failed. Since you cannot observe the POST result on
the display panel when the backlight is not functioning, connect the unit to an external monitor before powering the unit
up. If an external monitor is not available, verify that POST completes by opening and closing the display, listening for the
single or double beep, and watching for the LEDs turn on at the front of the computer.
This display panel has a continuous pattern
across it (e.g., a "jailbars" pattern), has a
single color on it, or has garbled graphics
across the entire panel. This failure is for
patterns across the entire panel (not just on
one section).
Improper display cable
connections
Reseat the display cable to the following
until the problem is solved:
1. System board
2. Display assembly
Defective display cable. Replace the display assembly.
Defective inverter board. Replace the display assembly.
Defective system board. Replace the system board.
To perform a "self-test" on an external VGA color monitor, complete the following steps: The screen should be
NOTE:
white. A narrow black border may also appear on the left and right sides of the display. Either of these displays
indicates that the monitor is working properly.
Solving Hard Drive Problems
Some common causes and solutions for hard drive problems are listed in the following table.
CAUTION: To prevent loss of information, always maintain an up-to-date backup of your hard drive at all
times, in case of errors or failures.
Solving Hard Drive Problems
Problem Probable Cause Solution(s)
Reading hard drive takes an unusually
long time after restarting the computer.
Hard drive error occurs. Hard drive has bad sectors or has
Hard drive does not work. Hard drive is not seated properly. Turn off and unplug the computer,
System entered Hibernation due to
low battery condition and is now
exiting from it.
failed.
Give the system time to restore the
previously saved data to its exact state
before Hibernation.
Run Computer Checkup.
remove the battery pack, and remove
and then reinstall the hard drive.
Solving Hardware Installation Problems
Some common causes and solutions for hardware installation problems are listed in the following
table.
Solving Hardware Installation Problems
Problem Probable Cause Solutions(s)
A new device is not recognized as
part of the computer system.
Cable(s) of new external
device are loose or
power cables are unplugged.
Power switch of new external
device is not turned on.
Ensure that all cables are
properly and securely
connected.
Turn off the computer, turn on
the external device, then turn
on the computer to integrate
the device with the computer
system.
Device is not seated properly. Turn off the computer and
reinsert the device.
Solving Keyboard/Numeric Keypad Problems
Some common causes and solutions for keyboard/numeric keypad problems are listed in the
following table.
Solving Keyboard/Numeric Keypad Problems
Problem Probable Cause Solution(s)
Embedded numeric keypad on
computer keyboard is disabled.
Embedded numeric keypad is
disabled and Num Lock function is
Num Lock function is not
enabled.
External numeric keypad is
connected to the computer.
Press the Shift + NumLk
keys to enable the Num Lock
function and embedded
numeric keypad. The Num
Lock icon on the status panel
turns on.
Disconnect the external
numeric keypad from the
on.
computer.
Solving Memory Problems
Some common causes and solutions for memory problems are listed in the following table.
Solving Memory Problems
Problem Probable Cause Solution(s)
Memory count during Power-On SelfTest (POST) is incorrect.
Optional memory expansion
card is installed incorrectly,
is incompatible with
the computer, or is defective.
Ensure that the optional
memory expansion card is
installed correctly.
"Out of Memory" message is
displayed on the screen or
insufficient memory error occurs
during operation.
Solving Minor Problems (continued)
System ran out of
memory for the application.
Too many TSR (terminateand stay-resident)
applications are running.
Check the application
documentation for memory
requirements.
Install additional memory.
Remove from memory any
TSR applications that you do
not need.
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments Index
Specifications Parts Catalog
Battery Pack Operating Time
This section covers the following information concerning battery pack operating time:
● Increasing battery pack operating time
● Conditioning a battery pack
● Disposing 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
The power consumption requirements for PC Cards vary widely. Some cards drain
NOTE:
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:
● Set the power conservation levels in the Power Management utility to Maximum .
● Customize the timeout value to work more efficiently with the applications. The
amount of battery life depends on the values selected.
Maximizing the Energy Stored
To maximize the energy stored in the battery pack, follow these guidelines:
● Condition the battery pack at least every 30 days to improve overall battery
performance.
● Keep a battery pack in the computer when using it with AC power to supply the
battery pack with a constant trickle charge.
● Store the battery pack in a cool, dry place when not in use.
Conditioning a Battery Pack
CAUTION: To avoid a loss of data, ensure that all data is saved before discharging a
battery pack.
To condition a battery pack, complete the following steps:
1. Plug in the AC adapter and allow the battery to charge until the fast charge arrow
on the display disappears. Your battery gauge may read 100 percent for a period of
time before the arrow disappears. Do not unplug the AC adapter until the arrow
disappears.
2. Unplug the AC adapter and allow the battery to drain until the computer reaches
hibernation and turns itself off.
CAUTION: Do not plug the AC adapter during this process or you will need to restart
with step number 1. You may use the computer while the battery is draining.
3. Your battery is re-conditioned.
4. Plug in the AC adapter and begin using the computer.
The table below shows battery pack charge times by model.
Battery Charge Time
Computer On Line Off Line
Li ion Battery Pack 4.5 hours premature termination 2:50 hr
Disposing of a Used Battery Pack
In the interest of safeguarding our environment. Compaq Computer Corporation recommends that
nickel metal hydride (NiMH) and lithium ion (Li ion) battery packs be recycled. Battery packs
should be handled in accordance with country, state, province, or local regulations.
CAUTION: Never attempt to open or service a battery pack. Opening a battery pack not
only damages the pack and makes it unusable, but also expose potentially harmful
battery components.
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