Welcome to the Maintenance and Service Guide (MSG) for Compaq Presario 1200XL Series Portable
Notebooks. This online guide is designed to serve the needs of technicians whose job is to repair
Compaq products.
For copyright and trademark information, refer to the Notice
unit’s serial number, to see symbol conventions, or to view technician’s notes, see the Preface
section of this MSG. To locate your
. This
MSG is updated periodically online as needed.
For comments or questions about the contents of this MSG, contact Compaq
.
To report a technical problem, contact your Regional Support Center or IM Help Center.
For help on navigating in this guide, refer to Using this Guide
To effectively use this guide, refer to the list of bookmarks at the left of the screen. These
bookmarks help you navigate through the document quickly and easily. They are accessible from
anywhere in the Maintenance and Service Guide (MSG).
Viewing a Chapter
Click one of the bookmarks or one of the color-coded bubbles on the Welcome page to view a
chapter of this MSG.
Expanding & Hiding Topics
Click the + to expand or show the contents of a section, or click the – to hide the contents.
Opening another Chapter
Return to the Welcome page
by clicking the bookmark, 1200 Series Maintenance and Service
Guide, and then click the bookmark or color-coded bubble for another chapter.
Printing the MSG
For portable copies of this MSG, you can print single pages, multiple pages, or the entire guide. In
the Acrobat Reader, click File, and then Print... for printing options.
The information in this guide is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS
OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES
RESULTING FROM THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.
This guide contains information protected by copyright. No part of this guide may be photocopied or
reproduced in any form without prior written consent from Compaq Computer Corporation.
Compaq, Presario 1200 Series Registered U. S. Patent and Trademark Office.
Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft Corporation.
Windows 98 and Windows 2000 are trademarks of Microsoft
Corporation.
The software described in this guide is furnished under a license agreement or nondisclosure
agreement. The software may be used or copied only in accordance with the terms of the
agreement.
Product names mentioned herein may be trademarks and/or
registered trademarks of their respective companies.
Maintenance and Service Guide
Compaq Presario 1200 Series Notebook Computer
First Edition (July 2000) Compaq Computer Corporation
This Maintenance and Service Guide is a troubleshooting guide that is used as a reference guide
when servicing the Compaq Presario 1200 Series Notebook Computers.
Compaq Computer Corporation reserves the right to make changes to the Compaq Presario 1200
Series Notebooks without notice.
Symbols
The following words and symbols mark special messages throughout this guide.
WARNING: Text set off in this manner indicates that a failure to follow directions
Å
in the warning could result in bodily harm or loss of life.
CAUTION:
Ä
Ä
ÄÄ
could result in damage to equipment or loss of data.
Important: Text set off in this manner preseats 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
Å
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 repaires 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, you should provide the Notebook serial
number to Compaq. The serial number location
Text set off in this manner indicates that a failure to follow directions
This appendix provides connector pin assignment tables for Compaq Presario 1200 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 (*).
This chapter describes power management and proper battery operating practices for Presario 1200
Series Notebooks. These practices include conservation of AC power and effective control of energy
to extend the operating life of the battery. The following Power Mode sections also outline the
correct methods of starting and shutting down the Notebook in various situations.
Power Modes
Presario 1200 Series Notebooks have three levels of low power: Hibernation, Standby, and Full Off.
Hibernation
Hibernation mode helps conserve battery life and protect data. The Notebook automatically enters
Hibernation when the battery has little power left, or when the Notebook (operating on battery
power) is in Standby mode for more than one hour. As the Notebook enters Hibernation, it
automatically stores the contents of its memory to the hard drive before shutdown. When the
Notebook wakes from Hibernation, it returns to its former state.
Note: When the Notebook enters or wakes from Hibernation mode, a Progress window is
displayed.
To activate Hibernation mode, press the Power
To resume from Hibernation mode, press the Power
Standby
Standby is a low-power mode, also referred to as Sleep mode. The Notebook maintains system
information and open files while in Standby mode. Selecting Standby instead of turning off the
Notebook when your have finished working has two advantages: 1. It allows the Notebook to wake
up faster than it would if it had been turned off; 2. It saves more power than the Active-On mode.
CAUTION: Unsaved information is lost if the Notebook is turned off prior to
system wake-up, or if a power loss occurs while using the AC adapter.
Ä
Ä
ÄÄ
To activate Standby/Sleep mode, press Fn+F4 or click Start. Select the Shut Down option, and
then Standby.
Full Off mode consumes no power. The battery charges continuously if the battery is installed while
the Notebook is in Full Off mode and if the Notebook remains plugged into external AC power.
Note: Unsaved information is lost if the Notebook is turned off without first saving the
data.
To activate Full Off mode, complete the following steps:
1. Click the Start button on the Windows taskbar.
2. Click Shut Down, then select Shut Down from the options.
To r es um e f ro m Full Off mode, press the Power button once.
CAUTION: The Notebook must be turned off (Full Off mode) when installing or
replacing components. Follow the instructions for putting the Notebook into
Ä
Ä
ÄÄ
Full Off mode. Be sure to unplug the Notebook from the outlet, and remove the
battery pack (refer to the removal procedures section: Battery Pack) before
servicing any parts.
The following table outlines the procedures for entering and exiting the various power modes, and
the external indicators for each mode.
Standby ModeHibernation ModeOff Mode
Automatic
Activation
15 minutes if using
battery power* (preset
default)
When battery is low or
after 1 hour of
Standby*
Standard Shutdown*:
click Start on the
Windows taskbar, click
Shut Down, and then
Shut Down from menu
options.
Manual
Activation
Press Fn+F4 key
combination or click
Start on the Windows
taskbar, Shut Down, and
then Standby.
Press the Power Ÿ
button once.
Manual Shutdown**:
Press and hold down the
Power
Ÿ button for
four seconds.
OR
Fn+Power (press and
hold the Fn key then
press the Power
button).
Resume/
Exit
Indicators
* T
The Notebook will not automatically enter Standby or Hibernation mode if using AC power.
Important: The Manual Shutdown procedure is not recommended unless the Standard Shutdown is
Power management modes can be initiated based on the amount of time passed since the last
system activity. System activity includes keyboard strokes, mouse movement, CD/DVD playback,
and modem usage.
Power Schemes
Different patterns of Notebook use determine the level of power management needed. The Power
management settings can be selected using several predefined Power Schemes. To access these
options, select Power Management on the Control Panel, then click the Power Schemes tab. The
default Power Schemes are Home/Office Desk, Portable/Laptop, and Always On. Power Schemes can
also be customized by changing the following options:
•
System Standby: the length of inactivity before the Notebook goes into Standby mode
•
Turn Off Monitor: the length of inactivity before the screen times out and goes blank
•
Turn Off Hard Disks: the length of inactivity before the hard drive goes into low-power
mode
Important: The setting for the Hard Disk must be less than or equal to the setting for
the System. If the Notebook is on a network, Compaq recommends that System
Standby be set to Never.
The following table shows the default settings for each Power Scheme.
Power SchemeAC PowerBattery Power
Always On
System Standby
Tur n OF F Mo nit or
Turn OFF Hard Disks
Hibernate
Never
20 minutes
Never
Never
Never
15 minutes
30 minutes
Never
Portable/Laptop
System Standby
Tur n OF F Mo nit or
Turn OFF Hard Disks
Hibernate
Never
3 hours
15 minutes
Never
15 minutes
Never
10 minutes
1 hour
Home/Office Desk
System Standby
Turn OFF Monitor
Turn OFF Hard Disks
Hibernate
The Notebook can be set to Alarm when the battery power level is reduced or when it reaches a
critically low level. The Notebook can also be set to enter a low-power mode when the battery
reaches a specific power level.
CAUTION: The settings on the Alarms tab are preset for the Notebook to run at
optimum efficiency. Changing any of these settings may cause the Notebook to
Ä
Ä
ÄÄ
function improperly. It is recommended that these settings be left at their default
values.
Default Alarm Settings
SettingLow BatteryCritical Battery
Alarm power level10%0%
NotificationSoundNo Action
Power ModeNo ActionHibernation
ActiveEnabledEnabled
Rebooting After a Lockup
To reboot the Notebook when the keyboard is frozen, or when the screen is locked, press and hold
down the Power
Notebook with a single press of the Power
If the Notebook still does not recover, shut it down by pressing the Power
down for four seconds. Then remove the battery and unplug the AC power for at least 30 seconds.
Reinsert the battery or reconnect AC power, and press the Power
Ÿ button for at least four seconds to perform a Manual Shutdown. Then restart the
Ÿ button.
Ÿ button and holding it
Ÿ button once to reboot.
Recovering From a Loss of Electrical Power
Loss of electrical power causes the Notebook to turn off automatically. This may cause loss of data
because the Microsoft Windows operating system is not able to close all the files and programs
properly.
Loss of power may be caused by one of the following:
If power surges or sags, the display and status lights may flicker, and the Notebook may
automatically restart. If an improper shutdown occurs, the Microsoft Windows utility program,
ScanDisk, runs automatically once power is restored. ScanDisk determines whether the improper
shutdown has caused any errors on the hard disk. These errors may occur if the Microsoft Windows
operating system is not able to close all files correctly before the shutdown. If no errors are found,
the restart process continues. If ScanDisk does detect errors, follow the instructions on the screen
to continue the restart process. Work or information that was not saved before the loss of power or
shutdown may be lost.
If a power failure occurs, or if the power cord disconnects while the Notebook is turned on, turn it off
until normal service is restored. The next time the Notebook is turned on, ScanDisk may run to
check the hard disk for errors caused by improper shutdown.
Increasing Battery Pack Operating Time
Battery pack operating life is affected by several variables. To avoid unnecessary replacement,
consider the following when determining how long a charged battery pack should last:
•
Power conservation settings
•
Hardware configuration
•
Software applications
•
Installed options
•
Display brightness\\Server\projects\Compaq_Port\Portable TimesheetHard drive usage
Changes in operating temperatures
•
•
Type and number of installed PC cards
Note: Power consumption requirements for PC cards vary widely. Some cards drain the
battery pack very rapidly.
Battery pack operating life can be increased by as much as 50 percent by controlling the energy
required by the Notebook and the energy stored in the battery pack.
Minimizing the Energy Required
To minimize the energy required by the Notebook, follow these guidelines:
•
Set the power conservation levels in the Power Management utility to Maximum.
•
Customize the time-out value to work more efficiently with the applications. The length of
battery life depends on the values selected.
To maximize the energy stored in the battery pack, follow these guidelines:
•
Condition a Battery Packat least every 30 days to improve overall battery performance.
•
Keep a battery pack in the Notebook 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 loss of data, make sure that all information is saved before
completely discharging a battery pack.
Ä
Ä
ÄÄ
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
status display disappears. The battery gauge may read 100% for a period of time before the
arrow disappears.
Note: Do not unplug the AC adapter until the arrow disappears.
2. Unplug the AC adapter and allow the battery to drain until the Notebook enters Hibernation
mode. The Notebook can be used normally during this process.
Note: If the AC adapter is connected while the battery is draining, the process must be
repeated, beginning with Step 1.
The battery is now reconditioned. Plug in the AC adapter and begin using the Notebook.
The table below shows typical battery charging times for each model.
In the interests 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.
WARNING: Battery pack contains harmful components when exposed. Do not
Å
Å
ÅÅ
open, crush, puncture, or incinerate the battery pack. It contains no
field-serviceable parts. Dispose of battery packs properly. Failure to dispose
of battery packs properly may cause harm to humans, animals, and
the environment.
This section provides troubleshooting information for Compaq Presario 1200XL Series Portable
Notebooks. The basic steps in troubleshooting include:
1. Preliminary Steps.
2. The Power-On Self-Test (POST).
3. The recommended actions described in the diagnostic tables in case you are unable to run
POST, or if POST displays an error message.
When following the recommended actions in the sections on Power-On Self-Test (POST)
Diagnostic Error Codes
, perform the steps in the order listed above. Rerun POST after each
and
recommended action until the problem is solved, or until no error message occurs. Once the
problem is solved, do not continue with any remaining recommended actions.
Note: If the problem is intermittent, check your computer several times to verify that
the problem is solved.
Before running the Power-On Self-Test (POST), complete the following steps:
1. If a Power-on password is established, type the password and press the Enter key. If you do
not know the password, see Clearing the Power-On Password
.
2. Run Compaq Diagnostics
.
3. Turn off the computer and its external devices.
4. Disconnect any external devices you do not want to test. Do not disconnect the printer if you
want to test it or use it to log error messages.
Important: If the problem only occurs when an external device is connected to the
computer, the problem may be related to the external device or its cable. Check this
problem by running POST
both with and without the external device connected.
5. Install loop-back plugs in the serial and parallel connectors if you want to test these ports.
6. Ensure that the hard drive is installed in the Notebook.
7. Ensure that the battery pack is inserted into the Notebook, and that it is connected to an
external AC power source.
When these preliminary steps are completed, you are ready to run POST
7. To clear the password, remove the RTC battery by prying it out of the socket on the system
board with a non-metallic
Simultaneously make contact with the two pads located at R37 on the system boarding, using
a conductive piece of material such as a piece of wire or tool.
object. Replace the battery after at least 10 seconds.
8. Reassemble the Notebook.
9. Turn on the Notebook to verify that the Power-on password has been cleared. If it has not
been cleared, repeat Steps 1 through 7.
Turn off the Notebook, then turn it on again. As soon as the Compaq logo appears, press ESC to
clear the logo and display the POST messages as they occur.
If the Notebook does not beep, POST has successfully completed its test and detected no errors.
POST will automatically boot up the Notebook. If a bootable diskette is installed in the diskette drive,
the Notebook will boot from the diskette instead of the hard drive.
However, if POST detects errors, the Notebook will beep and may display a text message.
Note: If the system is not functioning well enough to complete POST, or the display is unable
to show POST error messages, refer to the section Solving Minor Problems.
POST Messages
A list of the POST error codes and their descriptions are shown in the following tables:
Compaq Diagnostics is installed on the hard drive of the Notebook. Run the Diagnostic 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 the diagnostic program is version 10.11 or
later.
The Diagnostics menu includes the following utilities:
•
Computer Checkup (TEST)
•
View System Information (INSPECT)
•
Diagnostic Error Codes
•
Troubleshooting without Diagnostics
•
Before Replacing Parts
•
Solving Minor Problems
•
Solving Hard Drive Problems
•
Solving Hardware Installation Problems
•
Solving Keyboard/Numeric Keypad Problems
•
Solving Memory Problems
•
Solving PC Card Problems
•
Solving Power Problems
•
Solving Printer Problems
•
Solving TouchPad/Pointing Device Problems
•
Contacting Compaq Support
If you have a problem you cannot solve, run the Diagnostics utilities before calling for support. Run
Computer Checkup, and select to save the device list to a file and print or 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) 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 Notebook into an external power source. (A low-battery condition could interrupt the
program.)
2. Turn on the external devices 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 Notebook. The Notebook starts from drive A, and the Diagnostics
Welcome screen is displayed.
5. Press Enter to continue. The Diagnostics menu is displayed.
6. Select Computer Checkup on the Diagnostics menu to display a Test Option menu.
7. Select View the Device List from the Test Option menu. A list of the installed Compaq
devices is displayed.
8. If the list of installed devices is correct, select OK. The Test Option menu is displayed.
Note: If the list is incorrect, ensure that any new devices are installed properly.
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 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.
9. Follow the instructions on the screen as the devices are tested. When testing is complete, the
Test Option menu is displayed.
10. Exit the Test Option menu and the Diagnostics menu.
The View System Information (INSPECT) utility provides information about the Notebook 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 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 Notebook. The Notebook starts from drive A, and the Diagnostics
Welcome screen is displayed.
4. Press Enter to continue. The Diagnostics menu is displayed.
5. Select View System Information (INSPECT) from the Diagnostics menu.
6. Select the item you want to view from the following list:
System
Memory
ROMAudio
KeyboardOperating system
System portsSystem files
System storageWindows files
Graphics
7. Follow the on-screen instructions to cycle through the screens, return to the list and choose
another item, or print the information.
Diagnostic error codes are displayed if the system recognizes a problem while running the Compaq
Diagnostics program. These error codes help to identify subassemblies with possible damage or
defects.
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 any remaining steps.
For the removal and replacement of a particular subassembly, see Removal Sequence
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 about:
Audio
BatteryPC Card
CD or DVD DrivePower
Diskette DrivePrinter
DisplayTouchPad
Hard DriveKeyboard/Numeric Keypad
Hardware Installation
Since symptoms can be similar, carefully match the symptoms of the computer malfunction against
the problem description in the tables to avoid a misdiagnosis.
WARNING: To avoid a potential shock hazard during troubleshooting procedures,
Å
disconnect all power sources before removing the keyboard cover or the display
bezel.
Memory
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.
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
ProblemProbable CauseSolution
Computer does not
beep after the PowerOn Self-Test (POST).
Solving Battery Pack/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.
This is typical; it indicates
successful completion of the
Power-On Self-Test (POST).
No action is required.
Solving Battery Pack/Gauge Problems
ProblemProbable CauseSolution(s)
Computer won’t turn
on when battery pack
is inserted and power
cord is unplugged.
Battery pack is discharged.• Connect the computer to an
external power source and
charge the battery pack.
OR
• Replace the battery pack with a
fully charged battery pack.
Check the battery connectors on
the system board to verify that
they are evenly spaced and are
not bent or broken.
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 Notebook, then completing the following steps:
Diskette is not formatted.Format the diskette. At the
system prompt, enter
FORMAT A:
Bootable diskette is not in
drive A.
Diskette Boot has incorrect
setting in Computer Setup.
Put the bootable diskette in drive
A.
Run Computer Setup and set
diskette as first to boot.
1. Turn off the monitor.
2. Turn off the Notebook.
3. Disconnect the monitor signal cable from the Notebook.
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
ProblemProbable CauseSolution(s)
Screen is dim.Brightness Control
(if available) is not set
properly.
Computer screen is in direct
light.
Screen is blank.Screen save was initiated by
Power Management due to
lack of user activity.
Display has overheated.If the Notebook is in direct
Display is blank and
System is in Suspend mode.Press any key or touch the
the Suspend icon is
flashing.
Internal display is
blank and the screen
Display function was switched
to the external monitor.
on an external monitor
displays information.
Internal display
flashes or has garbled
characters when
Notebook is connected
to external monitor.
The light tubes on the
edge of the display
Using 1024 x 768 or higher
resolution on external monitor
and toggling back to internal
display, which supports up to
800 x 600.
Improper back-light or display
cable connections
panel do not light up
at all and the PowerOn Self-Test (POST)
completes when the
unit is powered up.**
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.
Adjust the Brightness of the
display by pressing Fn+F7 or
Fn+F8.
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.**
Back-light (brightness)
cannot be adjusted
with Fn+F7 or Fn+F8.
(Continued)Defective inverter board.Replace the display assembly.
**This problem indicates that the back-light or its power circuitry has failed. If the backlight is not functioning, the POST result cannot be observed. Connect the unit to an external
monitor before powering up the unit. If an external monitor is not available verify that POST
is complete by opening and closing the display, listening for the single or double beep, and
watching for the icons to turn on at the front of the notebook.
Defective system board.Replace the system board.
Improper display cable
connections.
1. Re-seat the display cable to the
system board.
2. Replace the display assembly.
Defective display cable.Replace the display assembly.
This display panel has
a continuous pattern
across it (e.g.,
“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).
A single line, small
group of lines, or block
appears on the display
panel. This failure
occurs in only a
section of the display
panel.
Improper display cable
connections.
Defective display cable.Replace the display assembly.
Defective inverter board.Replace the display assembly.
Defective system board.Replace the system board.
Defective display panel.Replace the display assembly.
Re-seat the display cable to the
following until the problem is
solved:
1. System board
2. Display assembly
Note: When you perform a "self-test" on an external VGA color or monochrome monitor,
the screen 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.
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
ProblemProbable CauseSolution(s)
Printer will not turn on. The signal cable may not be
connected properly, or the
printer is unplugged.
Printer will not print.Printer is not turned on or is
off-line.
The device drivers for the
application are not installed.
Printer that is set up for a
network is not connected to
the network.
Printer cable is too long,
unshielded, or defective.
Paper tray is empty.Fill the paper tray with paper and
Printer prints garbled
information.
Correct printer drivers are not
installed.
Cable is not connected
properly.
Cable is defective.Replace the printer cable and
Ensure that the signal cable is
properly connected and that the
power cord is connected to the
electrical outlet.
Turn the printer on and set it to
online.
Refer to the printer
documentation to install the
correct printer driver.
Connect the printer to the
network.
Replace the cable.
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
Notebook.
Obtain the following information before contacting Compaq Reseller Support:
•
Product name.
•
Product serial number.
•
Purchase date.
•
Conditions in which the problem occurred.
•
Any error messages that have occurred.
•
Hardware configuration.
•
Type of printer connected.
•
Hardware/software installed.
•
Printed results of Computer Checkup (TEST).
•
Printed copies of CONFIG.SYS and AUTOEXEC.BAT files, if possible.
Shipping Preparation
To ship the Notebook, complete the following steps:
1. Back up the critical hard drive files. Ensure that backup tapes/diskettes are not exposed to
electrical or magnetic fields while stored or in transit.
2. Turn off the Notebook and external devices.
3. Disconnect the external devices from their power sources, then from the Notebook.
Important: Ensure that there is no diskette in the diskette drive and that there are no
PC Cards in the PC slots.
4. Close the display and all exterior doors of the Notebook.
5. Pack the Notebook with sufficient packing material to protect it. Use the original packing box
or similar packaging.
This chapter describes the removal and replacement process for the Presario 1200XL Series
Notebook.
Electrostatic Discharge
When removing or replacing parts, be careful to discharge static electricity before touching the
internal Notebook components. 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 that has been exposed to electrostatic discharge
(ESD) may not seem to be affected and work perfectly throughout a normal cycle. Although it may
function normally for a period of time, it may have been degraded 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 below shows the amount of static electricity generated during common activities
associated with servicing computers.
Electrostatic Voltage
Event
Walking across carpet35,000V15,000V7,500V
Walking across vinyl floor12,000V5,000V3,000V
Motion of bench worker6,000V800V400V
Removing DIPS from plastic tubes2,000V700V400V
Removing DIPS from vinyl trays11,500V4,000V2,000V
Removing DIPS from styrofoam14,500V5,000V3,500V
Removing bubble pack from PCBs26,000V20,000V7,000V
Packing PCBs in foam-lined box21,000V11,000V5,000V
CAUTION:
Ä
Ä
ÄÄ
ground yourself before touching the Notebook or its subassemblies.
As little as 700 Volts can degrade Notebook components. Be sure to
The following items are required to service the Notebook:
•
Torx T-9 screwdriver
•
5mm nut drivers (for screwlocks and standoffs)
•
Small standard screwdriver
•
Small Phillips screwdriver
•
Diagnostics software
Screws
The screws used in the Notebook 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 Notebook, place it away from the
work area to prevent damage.
Note: Compaq Presario 1200XL Series Portable Notebooks have several screws of
various sizes that are not interchangeable. Care must be taken during reassembly to
ensure that the correct screws are used in their correct location. During removal keep
respective screws with their associated subassembly.
Connectors and Plastic Parts
Plastic parts can be damaged by the use of excessive force during disassembly and reassembly.
When handling plastic parts, use care. Apply pressure only at the points designated in the
instructions. Most of the connectors in these Notebooks are ZIF Connector
Most cables used throughout the unit are ribbon cables.
Cables must be handled with extreme care to avoid damage. Use the following precautions when
handling cables to avoid damage to the cable and Notebook:
•
Always handle cables by their connectors.
•
In all cases, avoid bending, twisting, pulling, or tearing cables.
•
Apply only the minimum force required to seat or unseat 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:
Ä
Ä
ÄÄ
proper location during the reassembly process. Improper cable placement can
cause severe damage to the unit.
The following illustrations show the proper placement for each cable:
•
Diskette Drive Ribbon Cable
•
Speaker Assembly Cable
When servicing these Notebooks, ensure that cables are placed in their
The cable position for the speaker assembly is shown below. The cable is routed under the battery
charger board and under the edge of the system board.
Ä
Ä
ÄÄ
6 R
EMOVAL SEQUENCE
CAUTION:
proper location during the reassembly process. Improper cable placement can
damage the Notebook.
When servicing this Notebook, ensure that cables are placed in their
Before beginning the removal or replacement of any Notebook components, complete the
following steps:
1. Disconnect AC power and any external devices.
2. Remove the battery pack (pg 10
3. Remove any PC Cards.
Important: The battery pack should be removed before performing any internal
maintenance on the Notebook.
WARNING: The Battery Pack contains harmful components when exposed. Do not
Å
open, crush, puncture, or incinerate the battery pack. It contains no
field-serviceable parts. Dispose of battery packs properly. Failure to dispose of
battery packs correctly may cause harm to humans, animals, and
the environment.
CAUTION:
Ä
Ä
ÄÄ
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 1200XL Series Portable Notebooks into the battery compartment. Do not
force the battery pack into the bay if insertion does not occur easily. Do not open
a battery pack; opening causes damage to the pack, making it unuseable.
Note: Compaq Presario 1200XL Series Portable Notebooks have several screws of
various sizes that are not interchangeable. Care must be taken during reassembly
to ensure that the correct screws are used in their correct location. During removal
keep respective screws with their associated subassembly.
Metal objects can damage the battery pack as well as the battery
).
Important: As each component is removed from the Notebook, place the screws
and its associates away from the work area to prevent damage.
To remove the battery pack, complete the following steps:
1. Slide
2. Pull
To replace the battery, reverse these procedures.
1 the battery compartment door down and remove it from the chassis.
2 the battery from the chassis by the tab located on the end of the battery pack.
Important: The battery pack should be removed before performing any internal
maintenance on the Notebook.
Å
Ä
Ä
ÄÄ
10 R
EMOVAL SEQUENCE
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 Compaq
Presario 1200XL Series Portable Notebooks 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; this action damages the pack, makes it unusable, and exposes
potentially harmful battery components. No field-serviceable parts are located
inside the battery pack.
Note: Compaq Presario 1200XL Series Portable Notebooks have several screws of
various sizes that are not interchangeable. Care must be taken during reassembly
to ensure that the correct screws are used in their correct location. During removal
keep respective screws with their associated subassembly.
Note: components of the Notebook.
To remove the Palmrest cover with TouchPad, complete the following steps:
1. Prepare the Notebook for disassembly (pg 9
).
2. Close the display and turn the Notebook upside down.
3. Remove five screws from underneath the Notebook.
To remove the keyboard, complete the following steps:
1. Prepare the Notebook for disassembly (pg 9
2. Remove the Palmrest cover with TouchPad (pg 14
).
).
3. Gently lift up the front of the keyboard, slide it forward, and then turn the keyboard over
allowing it to rest where the Palmrest cover normally sits.
4. Disconnect the flex cable from the ZIF Connector
on the system board and remove the
keyboard.
To replace the keyboard, reverse these procedures.
When replacing the keyboard, the Keyboard Ribbon Cable
rather than underneath the keyboard.
Note: Illustrations may show parts removed that are not part of this procedure. It is
necessary to remove only the parts listed in the written procedure.
To remove the Internet Zone cover, complete the following steps:
1. Prepare the Notebook for disassembly (pg 9
2. Remove the Palmrest Cover with TouchPad (pg 14
3. Remove the Keyboard (pg 16
).
).
).
4. Open the display, squeeze the sides of the display hinge covers and slide them off the hinges.
5. Close the Display, turn the unit upside down, and then remove two screws that secure the
Internet Zone cover to the chassis located in the back of the Notebook.