Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Models and
Features
Controls and
Lights
Front Bezel
Lights
Front Bezel
Buttons
Left Side
Components
Right Side
Components
Bottom of
Unit
Rear
Connectors
Power
Management
for Windows
98
Click here to download this Maintenance and Service Guide
(MSG) to your hard drive.
Welcome to the Maintenance & Service Guide (MSG). This online guide is designed to
serve the needs of those whose job it is to repair Compaq products. Many of the
components of the hardcopy MSG are contained in this online guide. The Notice,
contains the copyright and trademark information. The Preface shows symbol
conventions, Technician Notes and Serial Number locations on the unit.
This MSG will be periodically maintained and updated online as needed.
For content comments or questions, contact the Editor.
To report a technical problem, contact your Regional Support Center or IM Help
Center.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Notice
The information in this guide is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR
EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL
OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING,
PERFORMANCE, OR USE OF THIS MATERIAL.
This guide contains information protected by copyright. No part of this guide may be
photocopied or reproduced in any form without prior written consent from Compaq
Computer Corporation.
Ó 1998 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
Compaq, Presario Series Registered U. S. Patent and Trademark Office.
Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft Corporation.
Windows 98 is a trademark of Microsoft Corporation.
The software described in this guide is furnished under a license agreement or
nondisclosure agreement. The software may be used or copied only in accordance with
the terms of the agreement.
Product names mentioned herein may be trademarks and/or registered trademarks of
their respective companies.
Maintenance and Service Guide
Compaq Presario Series Portable Computer
First Edition (March 1999)
Compaq Computer Corporation
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Preface
This Maintenance and Service Guide is a troubleshooting guide that can be used for reference when servicing the Compaq
Presario Series Portable Computers.
Compaq Computer Corporation reserves the right to make changes to the Compaq Presario Series Portable Computers
without notice.
Symbols
The following words and symbols mark special messages throughout this guide.
WARNING: Text set off in this manner indicates that failure to follow directions in the warning could result in bodily harm or loss of
life.
CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of data.
IMPORTANT:
Text set off in this manner presents clarifying information or specific instructions.
NOTE:
Text set off in this manner presents commentary, sidelights, or interesting points of information.
Technician Notes
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 Series Portable Computer documentation set
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Product Description
Presario Series
Models and
Features
Controls and
Lights
Front Bezel
Lights
Front Bezel
Buttons
Left Side
Components
Right Side
Components
Bottom of
Unit
Rear
Connectors
Power
Management
for Windows
98
Compaq
Presario
Series
Portable
Computer is a
continuation
of the new
generation of
multimedia
portable
computers
with an
innovative
integrated
design,
outstanding
audio and
video,
advanced core
features, and
attractive
styling. This
full-function,
AMD-K6 based
portable
computer
allows full
desktop
functionality.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Troubleshooting
Presario Series
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
Series Portable Computers. The basic steps in troubleshooting include:
1. Follow the
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
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.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Illustrated Parts Catalog
System Unit
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Cable Kit
Miscellaneous
Hardware Kit
Miscellaneous
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
This section provides an breakdown and identifies the spare parts ordering
number associated with each item(s) for the Compaq Presario Series Portable
Computers.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Connector Pin Assignments
This appendix provides connector pin assignment tables for Compaq Presario 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
PinSignalPinSignal
1Strobe*10Acknowledge*
2Data Bit 011Busy
3Data Bit 112Paper Out
4Data Bit 213Select
5Data Bit 314Auto Linefeed*
6Data Bit 415Error*
7Data Bit 516Initialize Printer*
8Data Bit 617Select In*
9Data Bit 718-25Signal Ground
* = Active low
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Battery Pack Operating Time
This appendix covers the following information concerning battery pack operating time:
● Increase battery pack operating time
● Conditioning a battery pack
● Disposal of a used battery pack
Increasing Battery Pack Operating Time
Battery pack operating time differs depending on several variables. To avoid unnecessary replacement, consider the
following variables when determining how long a charged battery pack should last:
● Power management settings
● Hardware configuration
● Software applications
● Installed options
● Display brightness
● Hard drive usage
● Changes in operating temperature
● Type and number of installed PC Cards
NOTE:
The power consumption requirements for PC Cards vary widely. Some cards drain the battery pack
very rapidly.
Battery pack operating time can be increased by as much as 50 percent by controlling the energy required by the computer
and the energy stored in the battery pack.
Minimizing the Energy Required
To minimize the energy required by the computer, follow these steps:
● 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 LED light on the display stops blinking. Your
battery gauge may read 100 percent for a period of time before LED light on the display stops blinking. 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. Do not plug in the AC adapter during this process or you will need to restart with Step No. 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 the approximate battery pack charge times.
Li ion Battery Pack 4.5 hours premature termination2:50 hrs
Disposal 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.
Top of Page
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.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Power Management for Windows 98
The following power management features are available for conserving AC power and extending battery operating time:
● Power Management Settings
● Sleep
● Hibernation
● Battery operating time
● Rebooting After a Lockup
● Servicing Your Computer - Full Off Mode
Power Management Settings
Depending on your patterns of computer use, you can set different levels of power management. These different power
management levels can be activated based on the amount of time passed since the last system activity. System activity
examples include keyboard or mouse movement, CD or DVD playback (while under program control that monitors Sleep),
and modem use.
You can select different conditions or power schemes through Power Management.The optional settings are Home/Office Desk, Portable/ Laptop, and Always On. From the default settings, you can change the following settings:
● the System goes to Sleep (Standby) mode
● the screen times out and goes blank
● the hard drive spins down
Each of these system components will go to sleep after the selected or default periods of inactivity. (The setting for hard
drive must be less than or equal to the setting for System.)
IMPORTANT:
If you're on a network, it's recommended that you set System Standby to Never.
There are five categories of power management settings under the Control Panel. The default setting for each feature is
listed below in the tables.
Power Management Properties
Tab: Power Schemes:Plugged inRunning on Batteries
Always on System Standby: Never15 minutes
Turn OFF Monitor
Always on System Standby:After 15 minutesAfter 10 minutes
Tab: Monitor: Laptop Display (Maximum resolution according to unit display size)
Sleep
You can select Sleep mode instead of turning off the computer when you have finished using it. This allows the computer to
wake up faster than turning it completely off and saves power over the active (On) mode. Compaq Presario Series Notebook
computers have two levels of sleep, Hibernation and Sleep.
Hibernation – by pushing the power button once your computer will perform a save to disk followed by a shut down of the
computer into Off mode.
Sleep – is a low power mode, also referred to as Standby mode. 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 wake-up, or if you
lose power while using the AC adapter.
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 wake-up, or if you lose power while using
the AC adapter
.
Hibernation Mode
Hibernation helps conserve battery life and protects your data. Hibernation can be a routine power saving event, or can be
the result of a low battery condition. As it enters Hibernation your computer will display a progress screen, as it
automatically saves the machine state before it shuts down and turns itself off. Your computer will automatically go into
Hibernation, when the battery has little power left, or when the system (operating on battery power) has been in Sleep
mode for more than an hour. You can also manually initiate Hibernation by pressing the power button once while the
system is active. To restore the computer's previous state, simply press the power button once again. While waking up, the
computer will display a progress screen.
The following table shows the conditions and indicators for getting in and out of the various power management modes,
Sleep, Hibernation, and Off.
ModeTo InitiateTo EndIndicators
Sleep
Manual keys
combination
- Fn+F4
Press any keyFlashing green
Power LED
Time Out
Default 15
minutes. If on
Battery power
(system will not
go to Sleep if
on AC power)
HibernateManual - Press
Power Button
once
Time Out Default If
low battery or after
1 hour of sleep
(system will not
Hibernate if on AC
power)
Press Power
Button once
No Power LED,
blank screen
OffPerform normal
Windows
Press Power
Button once
No Power LED,
blank screen
shutdown via
the start
button, or press
and hold down
the power
button for 4
seconds
Servicing Your Computer – Full Off Mode
If you need to install or replace components in your system, you must turn the computer off completely. Follow the
instructions above for properly putting the computer into Off mode, unplug from the outlet, and remove the battery
battery section for instruction on removing battery).
(see
Rebooting After a Lockup
Occasionally you may encounter a frozen keyboard or a locked screen. To reboot your computer (as if from a cold start)
press and hold down the Power Button for at least four seconds, which will cause a manual shutdown. Then, restart it with a
single press of the Power Button. If it still doesn't recover, press the Power Button and hold it for four seconds to shut it
down, then, remove the battery or unplug the AC power for at least 30 seconds. Reinsert the battery or reconnect AC power
and press the Power Button once to reboot.
Battery Operating Time
Battery operating time is affected by variables, such as the following:
● Power conservation settings
● Hardware configuration
● Software applications
● Installed options
● Display brightness
● Hard drive usage
● Power button
● Changes in operating temperature
● Type and number of installed PC Cards
For more information on increasing battery pack operating time, conditioning the battery pack, and disposing of a used
battery pack, refer to the
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Power-On Self Test (POST)
Running POST
To run POST, complete the following steps:
Presario Series
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:
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
Probable CauseRecommended Action
DMA, timers, etc.Replace the system board.
162-System Options Not Set
Probable CauseRecommended Action
Configuration incorrectRun Computer Setup.
CMOS reflects that an invalid
Run Computer Setup.
configuration has been set.
RAM failure1. Replace the memory modules.
2. Replace the system board.
Memory test data error1. Replace the memory modules.
2. Replace the system board.
XX000YZZ RAM failureReplace the system board.
XX000YZZ 201-Memory Error
Probable CauseRecommended Action
301-Keyboard Error
Probable CauseRecommended Action
Keyboard failure1. 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 CauseRecommended Action
Keyboard or system board error1. Replace the keyboard.
2. Replace the TouchPad or mouse.
3. Replace the system board.
601-Diskette Controller Error
Probable CauseRecommended 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 CauseRecommended Action
Mismatch in drive typeRun Computer Setup.
1780-Primary Hard Drive 0 Failure
Probable CauseRecommended Action
Disk 0 failed to respond1. Run Computer Checkup (TEST).
2. Replace the hard drive.
Hard drive format error1. Run Computer Checkup (TEST).
2. Replace the hard drive.
1782-Hard Drive Controller
Probable CauseRecommended Action
Hard drive controller failure1. Run Computer Setup.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
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:
■ Computer Checkup (TEST)
■ View System Information (INSPECT)
■ Prepare Computer for a Compaq Service Call (RemotePaq)
If you have a problem you cannot solve, run the Diagnostics utilities before you call for support.
Run Computer Checkup and select to save the device list to a file and to print or to save the log of
errors. Run the View System Information (INSPECT) utility and select to print or to 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. If the list of installed devices is correct, select OK. The Test Option menu appears.
NOTE:
If the list is incorrect, ensure that any new devices are installed 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 display 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 how many times to run the tests, to stop on errors, or to print or
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 or 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:
SystemMemory
ROMAudio
KeyboardOperating system
System portsSystem files
System storageWindows 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.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Documentation and Software
System Unit
Boards
Display
Assembly
Mass Storage
Devices
Miscellaneous
Cable Kit
Miscellaneous
Hardware Kit
Miscellaneous
Plastics Kit
Miscellaneous
Parts
Documentation
and Software
DescriptionSpare Part Number
Quick Restore CD, Belgium Windows 98
France Windows 98
Germany Windows 98
Netherlands Windows 98
UK Windows 98
Quick Reference Guide
QuickFind for Windows, North America, Latin America, Asia
Info. Not Available
Info. Not Available
Info. Not Available
Info. Not Available
Info. Not Available
Info. Not Available
Info. Not Available
Pacific
QuickFind for Windows, Europe, Middle East, Africa
Info. Not Available
*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.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
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
Event10%40%55%
Walking across carpet35,000 V 15,000 V7,500 V
Walking across vinyl floor12,000 V5,000 V3,000 V
Relative Humidity
Motions of bench worker6,000 V800 V400 V
Removing DIPS from plastic tubes2,000 V700 V400 V
Removing DIPS from vinyl trays11,500 V4,000 V2,000 V
Removing DIPS from Styrofoam14,500 V5,000 V3,500 V
Removing bubble pack from PCBs26,000 V20,000 V7,000 V
Packing PCBs in foam-lined box21,000 V11,000 V 5,000 V
NOTE: 700 volts can degrade a
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
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:
● Compaq screwdriver kit (Spare Part No. 161946-001)
● Torx T-9 screwdriver
● 3/16-inch and 5mm nut drivers (for screwlocks and standoffs)
● Small, standard screwdriver
● Small, Phillips screwdriver
● 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:
As each subassembly is removed from the computer, it should be placed away
from the work area to prevent damage.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Cables and Connectors
Most cables used throughout the unit are ribbon cables. Cables must be handled with extreme care to avoid 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 servicing 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 ribbon cable position for the
The ribbon cable position for the
The ribbon cable position for the
The cable position for the
speaker assembly.
4.3-GB and 6.4-GB hard drive.
CD or DVD drive.
diskette drive.
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.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
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.
Back to
CAUTION: When servicing this
computer, ensure that cables are placed
in their proper location during the
reassembly process. Improper cable
placement can damage the computer.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Removing the Palmrest Cover with Touch Pad
Disassembly
Sequence
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Palmrest
Cover with
Touch Pad
Keyboard
Heatspreader
Processor
Hard Drive
The palmrest cover
with touch pad must
be removed to gain
access to any of the
interior components
of the computer,
and it is the first
component that has
to be removed to
gain access to the
interior
components.
It is not
necessary
to remove
the display
panel
NOTE:
assembly to
access the
interior
components
of the
computer.
DVD or
CD Drive
Battery
Charger Board
Modem
Display
Panel
Assembly
Upper CPU
Cover
Speaker
Assembly
Diskette Drive
Fan Assembly
System Board
To remove the
palmrest cover with
touch pad, complete
the following steps:
1. Prepare the
computer for
disassembly.
2. Close the
computer and turn
the computer upside
down.
3. Remove four
screws from the
bottom of the
computer.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
4. Turn the computer over
(right side up), pull forward on
the display latches to release
and open the display
assembly.
5. Lift up front end of the
palmrest cover with touch pad
and remove it from the groove
in the chassis.
6. Tilt the palmrest cover with
touch pad, allowing it to rest
on top of the keyboard, and
disconnect the flex cable from
the LIF connector on the
palmrest cover.
CAUTION:When
replacing the palmrest
cover with touch pad,
ensure that the cable is
fully inserted into the
LIF connector on the
system board. If the
metal end should come
in contact with the
keyboard, damage may
occur to the computer.
To replace the palmrest cover
with touch pad, reverse the
previous procedures.
When replacing the
palm rest cover
NOTE:
Return to Removal &
Replacement Procedures
ensure the cable is
properly routed
through the slot on
the Upper CPU cover.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Removing the Processor
Disassembly
Sequence
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Palmrest Cover
with Touch Pad
Keyboard
Heatspreader
To remove
the
processor,
complete the
following
steps:
1.
Prepare
the computer
for
disassembly.
2. Remove
the palmrest
cover with
touch pad.
3. Remove
the keyboard.
Processor
Hard Drive
DVD or
CD Drive
Battery
Charger Board
Modem
Display
Panel
Assembly
Upper CPU
Cover
Speaker
Assembly
Diskette Drive
4. Remove
the
heatspreader.
5. Insert a
small blade
screw driver
into the
bottom slot
opening on
the processor
and push
toward the
display to
release the
processor
from the
chassis slot.
Fan Assembly
System Board
Dip Switch
Settings
Memory
Module
6. Lift the
processor out
of the
processor
chassis slot.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
7. Disconnect the flex data
cable attached to the display
panel assembly from the Low
Voltage Differential Signal
(LVDS) connector the on the
system board.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
10. Remove the connector
on the end of the display flex
data cable.
Compaq
recommends
replacing the
LVDS interface
IMPORTANT:
connector on
the display flex
data cable
after
removing.
CAUTION:The
connector on the end
of the flex cable must
be removed before the
cable can be routed
through the slot on the
Upper CPU cover.
11. Gently pull the flex data
cable and backlight cable
attached to the display panel
assembly through the slot on
the Upper CPU cover and
remove the display panel
assembly with flex data and
backlight cable attached.
When removing the
display panel
NOTE:
To replace the display panel
assembly, reverse the previous
procedures.
Return to Removal &
Replacement Procedures
assembly, observe the
display panel
assembly flex cable
routing and position.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
18. Pull the PCMCIA eject lever out (straight), lift up the right
side of the system board and pull forward to remove the
system board from the chassis.
To replace the system board, reverse the previous
procedures.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
For Models: 1670 and 1675
CAUTION: Only change settings 1-5 on SW1 . Settings 6-10 vary by model and should not be changed when replacing the
system board. Ensure the dip switch voltage settings (SW1
model and processor voltage marked on the processor chip. If the system board dip switch voltage settings are not correct, damage
may occur to the computer and/or system board.
and SW3 ) on the system board are correct for the computer
NOTE:
The black area on the dip switch indicates the position of the switch.