Compaq Presario 1900 Series Maintenance and Service Guide Home Page
United States June 27, 2004
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
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 Notice
contains the copyright and trademark information. The
Preface shows symbol conventions, Technician Notes and
Serial Number locations on the unit. The Table of Contents
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Page 2
Compaq Presario 1900 Series Maintenance and Service Guide Home Page
provides the technician with easier navigation.
This MSG periodically will be maintained and updated online
as needed.
For content comments or questions, contact 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.
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Page 3
Specifications Section
United States June 27, 2004
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Specifications
This chapter covers the following specifications of Compaq Presario 1900 Series Portable
Computers:
Physical and Environmental
System Interrupts
System DMA
System I/O Addresses
System Memory Catalog
Display Information
Diskette Drive or LS-120 Drive
Hard Drive
CD ROM or DVD Drive
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Specifications Section
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Parts Catalog Section
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Illustrated Parts Catalog
System Unit
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Hardware and
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
Configure to
Order
This
section
provides
an
illustrated
parts
breakdown
and a
reference
for spare
parts for
the
Presario
1900
Series
Portable
Computer.
The
computer
serial
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number
should be
provided to
Compaq
whenever
requesting
information
or ordering
Page 6
Parts Catalog Section
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spare
parts. The
serial
number is
located on
bottom of
unit.
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Page 7
Removal & Replacement Section
United States June 27, 2004
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
This section explains the removal and replacement procedures for the computer.
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Modem
Serial
Number
Report the
computer
serial
number to
Compaq
when
requesting
information
or ordering
spare
parts. The
serial
number is
located
bottom of
unit.
on
Heatspreader
Processor
Display Panel
Assembly
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Removal & Replacement Section
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger
Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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Troubleshooting Section
United States June 27, 2004
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Troubleshooting
Preliminary
Steps
Clearing the
Power-On
Password
Power-On Self
Test (POST)
Compaq
Diagnostics
Diagnostic Error
Codes
Troubleshooting
Without
Diagnostics
Solving Minor
Problems
Contacting
Compaq
Support
This section covers troubleshooting information for the
Compaq Presario 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 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
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Troubleshooting Section
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recommended actions.
If the problem is
intermittent, check the
NOTE:
computer several times to
verify that the problem is
solved.
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Battery Pack Operations
United States June 27, 2004
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin
SpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
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
NOTE:
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.
The power consumption requirements for PC Cards vary widely. Some cards drain the battery
pack very rapidly.
Minimizing the Energy Required
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Battery Pack Operations
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
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Battery Pack Operations
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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Page 14
Product Description Section
United States June 27, 2004
STORE | PRODUCTS | SERVICES | SUPPORT | CONTACT US |
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Product Description
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
Components
Rear
Connectors
Port
Replicator
Connectors
Compaq
Presario
1900 Series
Portable
Computers,
a new
generation
of
multimedia
portable
computers,
present
ultimate thin
and lightweight
designs,
outstanding
audio and
video,
advanced
core
features,
and
attractive
styles.
The
Removable
Drive Wedge
provides
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Product Description Section
Port
Replicator
Components
Power
Management
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.
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This fully
functional
Intel
Celeron- and
Pentium IIbased
portable
computer
Page 16
Product Description Section
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provides full
desktop
versatility.
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Pin Assignments Section
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Pin Assignments
United States June 27, 2004
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Maintenance & Service Guide
Presario 1900 Series
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
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Pin Assignments Section
Connector Pin Signal
1
2
3
4
5
6
7
8
9
Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Ready to Send
Clear to Send
Ring Indicator
Keyboard/Mouse Connector
Connector Pin Signal
1
2
3
4
5
6
Data
Not defined
Ground
+5 VDC
Clock
Not defined
External VGA Monitor Connector
Connector Pin Signal
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Pin Assignments Section
1
2
3
4
5
6
7
8
9
10
Red Analog
Green Analog
Blue Analog
Not connected
Ground
Ground Analog
Ground Analog
Ground Analog
Not connected
Ground
11
12
13
14
15
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
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Pin Assignments Section
Connector Pin Signal
1
2
3
4
5
6
Unused
Unused
Tip
Ring
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
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Compaq.com - MSGS - Index
PRODUCTSSUPPORTSOLUTIONS SERVICES
Compaq logo: Link to Compaq.com home page
HOME & HOME OFFICE
SUPPORT
Support Home Page
United
States
...then...
Software & Drivers
Documentation
Customer Communities
Available Help & Support
End-User Replaceable Parts
Email a Support Specialist
Service Upgrades
Memory Configurator
POINTS OF INTEREST
Online Store
Accessories & Options
Presario Online University
by Learn2.com
Rebates & Promotions
Minitowers, Microtowers, Desktops, Portables
To view PDF formatted MSGs, download Adobe Acrobat Reader free.
Buy Online or Call 1-880-888-0220
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privacy statement and legal notices
Page 22
Specifications Section
United States June 27, 2004
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Specifications
STORE | PRODUCTS |
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Physical and Environmental
Computer Specifications
DimensionsU.S.Metric
(Models with 12.1 in TFT display)
Height
Depth
Width
(Models with 13.3 in TFT display)
Height
Depth
Width
Weight
12.1 TFT
13.3 TFT
Wedge
1.1 in
11.6 in
9.2 in
1.2 in
11.6 in
9.2 in
4.5 lb
5.0 lb
1.8 lb
234mm
294.7mm
29mm
234mm
294.7mm
30.5mm
Stand-Alone (Battery Pack) Power Requirements
NiMH
Nominal Operating
Maximum Average
Peak Operating
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W @ 9.6 V
W @ 9.6 V
W @ 9.6 V
Li-ion
W @ 14.4 V
W @ 14.4 V
W @ 14.4 V
Page 23
Specifications Section
AC Power Requirements
Operating Voltage
Operating Current
Operating Frequency
100-240 V
0.8/0.4 A RMS
47-63 Hz
Meets IEC 801-4 and IEC801-5
Maximum Transient
1kV for 50 ns
Temperature
Operating50° to 95°F10° to 35°C
Nonoperating-4° to 140°F-20° to 60°C
Relative Humidity (noncondensing)
Operating10 to 90%35°C to 90%
Nonoperating (tw = 38.7°C max)5 to 95%60°C to 95%
Altitude
Operating0 to 10,000 ft0 to 3.15 km
Nonoperating0 to 30,000 ft0 to 9.14 km
Shock
Operating10 G, 11 ms, half sine
Nonoperating240 G, 2 ms, half sine
Vibration
Operating0.5 G
Nonoperating1.5 G
NOTE: Applicable product safety standards specify thermal limits for plastic surfaces.
Compaq Presario 1900 Series Portable Computers operate well within this range of
temperatures.
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Specifications Section
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Specifications
System Interrupts
IRQDevice(s)
0System Timer
1Standard 101/102-Key or Microsoft Natural
2Programmable Interrupt Controller
3Ambit Modem
4Communications Port (COM1)
5ESS 1946 Audio Controller
Keyboard
6Standard Floppy Disk Controller
7Printer Port (LPT1)
8System CMOS/Real Time Clock
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Specifications Section
9Intel 82371AB/EB PCI to USB Universal Host
Controller
10PCI Fast Ethernet DEC 21143 Based Adapter
11Texas Instruments PCI-1225 CardBus Controller
ATI M1 Graphics Controller
12PS/2 Compatible Mouse Port
13Numeric Data Processor
14Intel 82371AB/EB PCI Bus Master IDE Controller
15Intel 82371AB/EB PCI Bus Master IDE Controller
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Specifications Section
United States June 27, 2004
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Specifications
System DMA
DMADevice(s)
0ESS 1946 Audio Controller
1ESS 1946 Audio Controller
2Floppy Disk Controller
3Parallel Port (ECP Mode)
5Free
6Free
7Free
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Next
Page 27
Specifications Section
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Page 28
Specifications Section
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Specifications
United States June 27, 2004
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
System I/O Address
I/O AddressSystem Function (Shipping Configuration)
0000 - 000FDirect Memory Access Controller
0020 - 0021Programmable Interrupt Controller
0040 - 0043System Timer
0060 - 0060Standard 101/102-Key or Microsoft Natural Keyboard
0061 - 0061System Speaker
0064 - 0064Standard 101/102-Key or Microsoft Natural Keyboard
0070 - 0071System CMOS/Real Time Clock
0081 - 008FDirect Memory Access Controller
00A0 - 00A1Programmable Interrupt Controller
00C0 - 00DFDirect Memory Access Controller
00E0 - 00E1Motherboard Resources
00F0 - 00FFNumeric Data Processor
0170 - 0177Intel 82371AB/EB PCI Bus Master IDE Controller
01F0 - 01F7Intel 82371AB/EB PCI Bus Master IDE Controller
0201 - 0201Gameport Joystick
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Page 29
Specifications Section
0274 - 0277IO Read Data Port for ISA Plug and Play Enumerator
0376 - 0376Intel 82371AB/EB PCI Bus Master IDE Controller
0378 - 037FPrinter Port (LPT1)
03B0 - 03BBATI M1 Graphics Controller
03C0 - 03DFATI M1 Graphics Controller
03F0 - 03F5Standard Floppy Disk Controller
03F6 - 03F6Intel 82371AB/EB PCI Bus Master IDE Controller
03F7 - 03F7Standard Floppy Disk Controller
03F8 - 03FFCommunications Port (COM1)
03D0 - 04D1Motherboard Resources
0CF8 - 0CFFPCI Bus
1000 - 103FMotherboard Resources
1040 - 104FMotherboard Resources
1050 - 105FIntel 82371AB/EB PCI Bus Master IDE Controller
1060 - 107FIntel 82371AB/EB PCI to USB Universal Host Controller
1080 - 10FFPCI Fast Ethernet DEC 21143 Based Adapter
1400 - 14FFPCI Communication Device
1800 - 1807PCI Communication Device
System Memory Catalog
Memory
Address
Device
00000000 0009FFFF
000A0000 000AFFFF
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System Board Extension for PnP BIOS
ATI M1 Graphics Controller
Page 30
Specifications Section
000B0000 000BFFFF
000C0000 000CBFFF
000E4000 000FFFFF
00100000 03FFFFFF
04000000 04000FFF
04001000 04001FFF
F4000000 F40000FF
F4000400 F40007FF
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
PCI Communication Device
PCI Fast Ethernet DEC 21143 Based Adapter
F4100000 F41FFFFF
F4100000 F47FFFFF
F4200000 F42FFFFF
F4400000 F47FFFFF
F4C00000 F4FFFFFF
F4C00000 F5FFFFFF
F5000000 F5FFFFFF
F8000000 FBFFFFFF
ATI M1 Graphics Controller
Intel 82443BX Pentium(r) II Processor to AGP Controller
PCI Multimedia Audio Device
ATI M1 Graphics Controller
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)
FFF80000 -
Motherboard Resources
FFFFFFFF
Display Information
12.1 in and 13.3 in TFT Display
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QuickFind for Windows, North America, Latin
America, Asia Pacific
QuickFind for Windows, Europe, Middle East, Africa Not Available
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Not Available
Page 50
Parts Catalog Section
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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
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Page 51
Parts Catalog Section
Maintenance & Service Guide
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Illustrated Parts Catalog
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
Presario 1900 Series
Configure To Order Features
Compaq Presario 1900T Portable Computer Configure To Order Features
Microsoft Office 2000 SBE CD
Microsoft Office 2000 Professional CD
Other CTO OptionsAC Adapter
Briefcase
External Zip
Folio Case
Port Replicator
Security Lock
Xircom 10/100 NIC
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Page 52
Parts Catalog Section
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Back to Models and Features
Back to Illustrated Parts Catalog
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Page 53
Removal & Replacement Section
United States June 27, 2004
STORE | PRODUCTS |
Compaq logo: Link to
SERVICES | SUPPORT |
CONTACT US | SEARCH
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
Electrostatic Discharge
A sudden discharge of static electricity from a finger or other conductor can destroy staticsensitive 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
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Page 54
Removal & Replacement Section
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.
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Page 55
Removal & Replacement Section
United States June 27, 2004
STORE | PRODUCTS |
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
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:
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As each subassembly is removed from the computer, it should be placed
away from the work area to prevent damage.
Page 56
Removal & Replacement Section
Return to Removal & Replacement Procedures.
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Page 57
Removal & Replacement Section
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
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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 .
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Page 58
Removal & Replacement Section
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 .
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Page 59
Page 60
Page 61
Removal & Replacement Section
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Modem
Heatspreader
Processor
Removing the
Battery Pack
To remove the battery
pack, complete the
following steps:
Prepare the
1.
computer for
disassembly .
2.
Turn the unit
over.
Slide the
3.
battery pack
release button
located in the
center of the
bottom of the
unit.
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
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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
Page 62
Removal & Replacement Section
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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.
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Page 63
Removal & Replacement Section
Compaq logo: Link to
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
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
Upper CPU
Cover with
Palmrest and
TouchPad
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.
3.
Pull the hard
drive from the
chassis slot.
To replace the hard
drive, reverse the
previous procedures.
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Page 64
Removal & Replacement Section
Hard Drive/
Battery
Charger
Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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Page 65
Removal & Replacement Section
Compaq logo: Link to
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
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
Keyboard
To remove the
keyboard, complete
the following steps:
1.
Prepare the
computer for
disassembly.
Partially close
2.
the unit and
place it on its
side.
Slide the
3.
keyboard eject
switch located
in the center of
the bottom of
the unit to the
right to release
the keyboard.
Upper CPU
Cover with
Palmrest and
TouchPad
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Next Step
Page 66
Removal & Replacement Section
Hard Drive/
Battery
Charger
Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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Page 67
Removal & Replacement Section
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
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
Upper CPU
Cover with
Palmrest and
TouchPad
Removing the
Memory Module
To remove the
memory module,
complete the
following steps:
1. Prepare the
computer for
disassembly.
2. Release and lift
up the
keyboard .
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.
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Page 68
Removal & Replacement Section
Hard Drive/
Battery
Charger
Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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Page 69
Removal & Replacement Section
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
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
Modem
To remove the
modem, complete the
following steps:
Prepare the
1.
computer for
disassembly.
Release and lift
2.
up the
keyboard.
Remove two
3.
screws securing
the modem and
pull the modem
off the
connector on
the system
board.
Upper CPU
Cover with
Palmrest and
TouchPad
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Next Step
Page 70
Removal & Replacement Section
Hard Drive/
Battery
Charger Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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Page 71
Removal & Replacement Section
Compaq logo: Link to
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
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
Upper CPU
Cover with
Palmrest and
TouchPad
Removing the
Heatspreader
with Thermal Pad
To remove the
heatspreader with
thermal pad, complete
the following steps:
1. Prepare the
computer for
disassembly.
2. Release and lift
the keyboard.
3. Remove two
screws from the
smaller half of
the heatspreader
with thermal
pad. You will
remove eight
screws total to
remove
heatspreader.
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Page 72
Removal & Replacement Section
Hard Drive/
Battery
Charger
Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
NOTE:
Next Step
When
replacing the
heatspreader,
ensure that
the thermal
pad under the
heatspreader
is properly
replaced.
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Page 73
Removal & Replacement Section
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
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
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Removing the
Processor
To remove the processor,
complete the following
steps:
Prepare the
1.
computer for
disassembly.
Release and lift the
2.
keyboard.
Remove the
3.
heatspreader with
thermal pad.
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
center
slot .
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B. Twist
Page 74
Removal & Replacement Section
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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.
IMPORTANT:
The
bottom of
the
processor
contains
socket
pins
which can
be easily
damaged,
if not
properly
removed.
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WARNING:
The Pentium
Processor may
be very hot
when the unit
has been
running. Allow
the processor
to cool before
handling it.
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Page 75
Removal & Replacement Section
Compaq logo: Link to
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
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
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Removing the
13.3 inch
Display Panel
Assembly
To remove the 13.3
inch display panel
assembly, complete
the following steps:
1.
Prepare the
computer for
disassembly.
2.
Remove the
keyboard.
Close the
3.
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
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Page 76
Removal & Replacement Section
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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unit.
Use a pair of
tweezers to
properly
NOTE:
remove the
display
hinges from
the unit.
Next Step
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Page 77
Removal & Replacement Section
Compaq logo: Link to
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Modem
Heatspreader
Processor
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.
Remove the
2.
keyboard.
Remove the
3.
Heatspreader.
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
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4.
Remove the
display
assembly with
flex cables
attached.
5.
Remove four
screws located
at the top of the
Page 78
Removal & Replacement Section
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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Upper CPU
Cover with
Palmrest and
TouchPad.
6.
Remove a fifth
screw located
just to the top
right of the fan.
(Not shown).
Next Step
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Page 79
Removal & Replacement Section
Compaq logo: Link to
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
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
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Removing the
Hard Drive/
Battery Charger
Board
To remove the hard
drive/battery charger
board, complete the
following steps:
Prepare the
1.
computer for
disassembly.
2.
Remove the
keyboard.
3.
Remove the
heatspreader.
4.
Remove the
display assembly
with flex cables
attached.
Remove the
5.
Upper CPU
Cover with
Palmrest/
TouchPad/Fan.
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Page 80
Removal & Replacement Section
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
1.800.AT.COMPAQ
Remove four
6.
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.
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Page 81
Removal & Replacement Section
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
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
Upper CPU
Cover with
Palmrest and
TouchPad
Removing the
Converter Board
To remove the
converter board,
complete the
following steps:
Prepare the
1.
computer for
disassembly .
Remove the
2.
keyboard .
3.
Remove the
display panel
assembly.
Remove the
4.
Upper CPU
cover with
Palmrest Cover
and TouchPad.
Remove the
5.
hard drive.
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6.
Remove the
Page 82
Removal & Replacement Section
Hard Drive/
Battery
Charger Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
modem.
Remove two
7.
screws and
disconnect the
converter board
from the
system board
connector and
remove from
the chassis.
To replace the
converter board,
reverse the previous
procedures.
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Page 83
Removal & Replacement Section
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
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Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Modem
Heatspreader
Processor
Removing the
Low Voltage
Differential
Signal (LVDS)
Interface Board
To remove the LVDS
Interface Board,
complete the following
steps:
Prepare the
1.
computer for
disassembly.
2.
Remove the
keyboard.
3. Remove the
heatspreader.
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
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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.
Page 84
Removal & Replacement Section
Hard Drive/
Battery
Charger
Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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Page 85
Removal & Replacement Section
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
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
Upper CPU
Cover with
Palmrest and
TouchPad
Removing the Fan
Assembly
To remove the fan
assembly, complete the
following steps:
Prepare the
1.
computer for
disassembly.
Remove the
2.
keyboard.
Remove the
3.
heatspreader. Fan
is attached
to heatspreader
assembly.
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.
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Page 86
Removal & Replacement Section
Hard Drive/
Battery
Charger
Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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Page 87
Removal & Replacement Section
United States June 27, 2004
STORE | PRODUCTS |
Compaq logo: Link to
SERVICES | SUPPORT |
CONTACT US | SEARCH
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
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 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.
Modem
Heatspreader
Processor
Display Panel
Assembly
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5. Remove the processor.
Next Step
Page 88
Removal & Replacement Section
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
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Page 89
Removal & Replacement Section
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
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
Upper CPU
Cover with
Palmrest and
TouchPad
Removing the
Speaker Assembly
To remove the
speaker assembly,
complete the following
steps:
Prepare the
1.
computer for
disassembly.
Remove the
2.
keyboard .
Remove the
3.
display panel
assembly.
4. Remove the
Upper CPU
cover with
Palmrest Cover
and TouchPad.
5.
Remove two
screws from the
speaker
assembly,
disconnect the
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Page 90
Removal & Replacement Section
Hard Drive/
Battery
Charger Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CD
Drive
1.800.AT.COMPAQ
speaker cables
from the
system board,
and lift out of
the unit.
To replace the
speaker assembly,
reverse the previous
procedures.
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Page 91
Removal & Replacement Section
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removal and Replacement Procedures
United States June 27, 2004
STORE | PRODUCTS |
SERVICES | SUPPORT |
CONTACT US | SEARCH
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
Upper CPU
Cover with
Palmrest and
TouchPad
Removing the
DVD or CD-ROM
Drive
To remove the CDROM or the DVD
Drive with shield
attached, complete
the following steps:
1.
Prepare the
computer for
disassembly.
Disassemble
2.
the wedge.
Remove two
3.
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.
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To replace the CDROM or DVD Drive
Page 92
Removal & Replacement Section
Hard Drive/
Battery
Charger Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly
System Board
Speaker
Assembly
DVD or CDROM Drive
with shield attached,
reverse the previous
procedures.
Next Step
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Page 93
Troubleshooting Section
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STORE | PRODUCTS |
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Troubleshooting
Preliminary Steps
Before running POST, complete the following preliminary steps:
If a power-on password has been established, type the password and press the
1.
Enter key. If the password is not known, clear the password.
Run Compaq diagnostics.
2.
Turn off the computer and its external devices.
3.
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
IMPORTANT:
computer, the problem may be related to the external device or its cable.
Verify this by running POST with and without the external device
connected.
5.
Install loopback plugs in the serial and parallel connectors if you would like to test
these ports.
6.
Ensure the hard drive is installed in the computer.
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Page 94
Troubleshooting Section
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
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POST .
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Page 95
Troubleshooting Section
United States June 27, 2004
Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Troubleshooting
Clearing the Poweron Password
If the password is not
known, clear it by
performing the following
steps:
1.
Turn off the
computer.
Disconnect the
2.
power cord.
3.
Remove the battery
pack .
4.
Remove the
keyboard.
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Disconnect the
5.
backlight cable from
the connector on the
system board .
Page 96
Troubleshooting Section
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.
Turn on the
8.
computer to verify
that the power-on
password has been
cleared. If it has not
been cleared, repeat
Steps 1 through 7.
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Page 97
Troubleshooting Section
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Troubleshooting
Running POST
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
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.
NOTE:
Probable Cause Recommended Action
DMA, timers, etc. Replace the system board.
Probable Cause Recommended Action
Configuration incorrect Run Computer Setup.
CMOS reflects that an invalid
configuration has been set.
RAM failure 1. Replace the memory modules.
If the system is not functioning well enough to run POST, or if the display is not functioning well enough to
show POST error messages, refer to the Troubleshooting tables.
Power-On Self-Test Messages
102-System Board Failure
162-System Options Not Set
Run Computer Setup.
2. Replace the system board.
Memory test data error 1. Replace the memory modules.
2. Replace the system board.
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Page 98
Troubleshooting Section
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 diskette
1. Run Computer Checkup (TEST).
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.
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Page 99
Troubleshooting Section
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Page 100
Troubleshooting Section
United States June 27, 2004
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Compaq logo: Link to
SERVICES | SUPPORT |
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Maintenance & Service Guide
Presario 1900 Series
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
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.
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