Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Notice
Preface
Product
Description
Maintenance & Service Guide
Presario 1200 Series
Models: 1230 and 1232
Pin Assignments|Battery Pack Operations
Troubleshooting
Illustrated Parts
Catalog
Removal &
Replacement
Procedures
Specifications
Connector Pin
Assignments
Battery Pack
Operations
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.
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 Registered U. S. Patent and Trademark Office.
Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft Corporation.
Windows 95 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 1200 Series Portable Computers
First Edition (June 1998)
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 1200 Series Portable Computers.
Compaq Computer Corporation reserves the right to make changes to the Compaq Presario 1200
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.
Text set off in this manner presents commentary, sidelights, or interesting points of
NOTE:
information.
Technician Notes
WARNING: Only authorized technicians trained by Compaq should repair this equipment. All troubleshooting and repair procedures
are detailed to allow only subassembly/module level repair. Because of the complexity of the individual boards and subassemblies,
the user should not attempt to make repairs at the component level or to make modifications to any printed circuit board. Improper
repairs can create a safety hazard. Any indications of component replacement or printed circuit board modifications may void any
warranty
Serial Number
When requesting information or ordering spare parts, the computer serial number should be
provided to Compaq. The serial number is located on the bottom of the computer.
Locating Additional Information
The following documentation is available to support this product:
● Compaq Presario 1200 Series Portable Computer documentation set
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Product Description
Models and
Features
Controls and
Lights
Left Side
Components
Right Side
Components
Bottom of
Unit
Rear
Connectors
Power
Management
for Windows
98
Compaq
Presario
Portable
Computer is
a
continuation
of the new
generation
of
multimedia
portable
computers
with an
innovative
integrated
design,
outstanding
Power
Management
for Windows
95
audio and
video,
advanced
core
features,
and
attractive
styling. This
full-function,
Cyrix-based
portable
computer
allows full
desktop
functionality.
This section covers troubleshooting information for the
Compaq Presario 1200 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
recommended actions.
If the problem is
intermittent, check the
NOTE:
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
Cables
Miscellaneous
Hardware and
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
1200 Series Portable Computers.
0022h-0023hMotherboard resources
0040h-0043hSystem timer
0060h-0060hKeyboard Controller
0061h-0061hSystem speaker
0064h-0064hStandard 101/102-Key or Microsoft Natural
Keyboard
0070h-0071hSystem CMOS/real time clock
0081h-008FhDMA Controller
0092h-0092hMotherboard resources
00A0h-00A1hProgrammable interrupt controller
00C0h-00DFhDMA Controller
00ECh-00EFhMotherboard resources
00F0h-00FFhNumeric data processor
0170h-0177hSecondary IDE controller
01F0h-01F7hPrimary IDE controller
0376h-0376hStandard IDE/ESDI Hard Disk Controller
0378h-037FhPrinter Port (LPT1)
0388h-038BhAUDIO(TM) 16-bit Sound
0398h-0399hMotherboard resources
03B0h-03BBhGraphics Controller
03C0h-03DFhGraphics Controller
03F0h-03F5hStandard Floppy Disk Controller
03F6h-03F6hStandard IDE/ESDI Hard Disk Controller
03F7h-03F7hStandard Floppy Disk Controller
03F8h-03FFhCommunications Port (COM1)
0480h-048FhMotherboard resources
04D0h-04D1hMotherboard resources
0CF8h-0CFFhPCI bus
3000h-307FhCyrix Cx5520 PCI to ISA bridge
4000h-401FhCyrix Cx5520 PCI to ISA bridge
5000h-500FhCyrix Cx5520 PCI to ISA bridge
System Memory Catalog
Memory AddressSystem Function
00000000h-0009FFFFhSystem board extension for PnP BIOS
System Memory Catalog
000A0000h-000AFFFFhGraphics Controller
000B0000h-000BFFFFhGraphics Controller
000C0000h-000C7FFFhGraphics Controller
000C8000h-000C8FFFhPCI-1221 CardBus Controller
000C9000h-000C9FFFhPCI-1221 CardBus Controller
000CC000h-000CFFFFhMotherboard resources
000E0000h-000FFFFFhSystem board extension for PnP BIOS
00100000h-01FFFFFFhSystem board extension for PnP BIOS
40008000h-4000FFFFhMotherboard resources
40010000h-40010FFFhCyrix Cx5520 PCI to ISA bridge
40018000h-41017FFFhMotherboard resources
FD000000h-FDFFFFFFhGraphics Controller
FEA00000h-FEBFFFFFhGraphics Controller
FEC00000h-FECFFFFFhGraphics Controller
FEDFE000h-FEDFEFFFhCompaq PCI to USB Open Host Controller
FFFC0000h-FFFFFFFFhMotherboard resources
Display (Information not available)
12.1" (Diagonal) HPA Display
Dimensions
Height
Width
Display Dimensions
Width
Height
U.S.Metric
Information
not available
Information
not available
Information
not available
Information
not available
Depth
Weight
Contrast Ratio
Brightness
Total Power Consumption
Memory Expansion
Information
not available
Information
not available
Information
not available
Information
not available
Information
not available
Information
not available
Information
not available
Information
not available
Memory Expansion
System MemoryExpansion Board
Memory
32-MB16-MB48-MB
32-MB32-MB64-MB
32-MB64-MB96-MB
Diskette Drive (Information not available)
Diskette Drive
Capacity per Diskette (High/Low)
Diskette Size
Information not available
Information not available
Total Memory
Number of LED Indicators
(Read/Write)
Number of Drives Supported
Drive Rotation (rpm)
Transfer Rate (Kbps)
Bytes per Sector
Sectors per Track (High/Low)
Tracks per Side (High/Low)
Access Times
Track-to-Track (ms)
Average (ms)
Setting Time (ms)
Latency Average (ms)
Information not available
Information not available
Information not available
Information not available
Information not available
Information not available
Information not available
Information not available
Cylinders (High/Low)
Number of Read/Write Heads
Information not available
Information not available
Hard Drive (Information not available)
Hard Drives
Capacity Per Drive
Drive Type
Logical Configuration
Cylinders
Heads
3.2-GB2.1-GB
Information not available Information not available
Information not available Information not available
Information not available Information not available
Sectors per track
Bytes per sector
Seek Times
Information not available Information not available
(Typical, Including settling in
ms)
Single track
Average
Full stroke
Transfer Rate
Information not available Information not available
At interface
CD Drive (Information not available)
CD Drive
Dimensions
Weight
Rotational Speed
Typical Transfer Rate
24× CD Drive
Information not available
Information not available
Information not available
Information not available
Sustained Data Transfer Rate
Access Time
Information not available
Average Random Access Time
Spin Up time
Data Buffer Capacity
Information not available
Information not available
Battery Pack
Dimensions
Height
Length
Width
Weight
Battery Pack Operating
Time
Energy
Nominal Open Circuit Voltage
Capacity
Power
Battery Pack
Nickel Metal Hydride (NiMH)Lithium Ion (Li ion) *
0.8 in (20.3 mm)
5.7 in (145 mm)
3.1 in (78.7 mm)
0.8 in (20.3 mm)
5.7 in (145 mm)
3.1 in (78.7 mm)
1.01 Ib (458.1 g)0.90 Ib (408.2 g)
2:30 hr3:00 hr
9.6 V
3200mAH
40 W
14.4 V
2500mAH
40 W
Environmental
Requirements
Operating Temperature
Non-operating Temperature
Charging Temperature
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 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 (*).
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
The power consumption requirements for PC Cards vary widely. Some cards drain
NOTE:
the battery pack very rapidly.
Battery pack operating time can be increased by as much as 50 percent by controlling the energy
required by the computer and the energy stored in the battery pack.
Minimizing the Energy Required
To minimize the energy required by the computer, follow these steps:
● Set the power conservation levels in the Power Management utility to Maximum.
● Customize the timeout value to work more efficiently with the applications. The
amount of battery life depends on the values selected.
Maximizing the Energy Stored
To maximize the energy stored in the battery pack, follow these guidelines:
● Condition the battery pack at least every 30 days to improve overall battery
performance.
● Keep a battery pack in the computer when using it with AC power to supply the
battery pack with a constant trickle charge.
● Store the battery pack in a cool, dry place when not in use.
Conditioning a Battery Pack
CAUTION: To avoid a loss of data, ensure that all data is saved before discharging a
battery pack.
To condition a battery pack, complete the following steps:
1. Plug in the AC adapter and allow the battery to charge until the fast charge arrow on
the display disappears. Your battery gauge may read 100 percent for a period of time
before the arrow disappears. Do not unplug the AC adapter until the arrow disappears.
2. Unplug the AC adapter and allow the battery to drain until the computer reaches
hibernation and turns itself off. 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 battery pack charge times by model.
Battery Charge Time
ComputerOn LineOff Line
Model 1/NiMH Battery Pack4.0 hours premature termination2:00 hr
Model 2/Li ion Battery Pack 4.5 hours premature termination2:50 hr
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.
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.)
If you're on a network, it's recommended that you set System Standby to
IMPORTANT:
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
Always on System
Never15 minutes
Standby:
Turn OFF Monitor
Always on System
After 15 minutesAfter 10 minutes
After 15 minutesAfter 10 minutes
Tab: POWER METER: Monitor Laptop Display (Maximum resolution according to
unit display size)
System Properties
Tab: Device Manager
Default:
Disk Drives:
CD ROM:
X DMA
X DMA
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 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 wakeup, 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
Press any keyFlashing green
combination
- Fn+F4
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
Press Power
Button once
Power LED
No Power LED,
blank screen
battery or after
1 hour of sleep
(system will not
Hibernate if on
AC power)
OffPerform normal
Windows
shutdown via
the start
button, or press
and hold down
the power
button for 4
seconds
Press Power
Button once
No Power LED,
blank screen
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 (see battery section for instruction on removing battery).
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 Map | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Power Management for Windows 95
The following power management features are available for conserving AC power
and extending battery operating time:
● Power Management Settings
● Sleep
● Hibernation
● Battery Operating Time
Power Management Settings
You can select power conservation settings through Power Management located
on the System Features menu in Computer Setup. Computer Setup can be
accessed by pressing F10 when the Compaq logo appears on the screen. These
settings control the power conservation rate and the timeout values for various
system components. A timeout is a specified period of system or component
inactivity. After this period, the system or component (for example, the hard
drive) is shut down to conserve power until it is accessed again.
There are four categories of power management settings: Maximum Power
Saving, Maximum Performance, Customized, and Disabled. The default setting
for each feature is listed in below table.
Power Conservation Default Time-out Settings
FeaturesMaximum
Power
Maximum
Performance
Customized Disabled
Saving
Idle ModeOnOffOffOff
Sleep Timeout5 minutes60 minutes15 minutesOff
Resume On TimeOffOffOffSelectable
Resume TimeSelectableSelectableSelectableSelectable
Hard Drive Timeout10 seconds15 minutes5 minutesDisabled
Sleep
Sleep is a power conservation mode that performs the following functions:
● Turns off the display after a selected period of inactivity.
● Automatically reduces the amount of power the computer uses.
● The computer is immediately ready for use when any key is pressed.
● Sleep mode is indicated by the blinking Power On LED.
The computer may be manually put in Sleep mode by pressing the Fn + F4
keys.
Hibernation Mode
Hibernation is a power conservation mode that performs the following functions:
● Saves all current information from memory to a file on the hard drive.
● Turns off the computer.
● Can be restored after any amount of time.
The Hibernation file is preinstalled on the hard disk. The Hibernation file is
slightly larger than the total RAM memory of the computer (system memory,
memory expansion board, video memory). The Hibernation 100-MB partition can
be reinstalled with the QuickRestore CD.
Hibernation is initiated by one of the following means:
● Automatically when the system is operating on Battery Power and
has been in Sleep Mode for 60 minutes.
● Automatically when the battery reaches a low battery level.
● Manually by pressing the power button.
When the Power button is pushed, the computer exits Hibernation.
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 Battery Pack
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:
Turn off the computer, then turn on the computer.
If POST does not detect any errors, the computer will not beep. This indicates successful
completion of POST test. POST has run successfully and boots from the hard drive (or from a
bootable diskette if one is installed in the diskette drive).
If POST detects errors, the errors are indicated by screen and/or audible messages. Refer to
"Power-On Self-Test (POST) Codes" in the tables for a list of POST codes and their relevant
descriptions.
If the system is not functioning well enough to run POST, or if the display is not functioning
NOTE:
well enough to show POST error messages, refer to the Troubleshooting tables.
Power-On Self-Test Messages
102-System Board Failure
Probable 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
Diagnostic Error Codes
Diagnostic error codes occur if the system recognizes a problem while running the Compaq
Diagnostic program. These error codes help identify possibly defective subassemblies.
The following tables list error codes, a description of the error condition, and the action required
to resolve the error condition.
IMPORTANT:
For the removal and replacement of a particular subassembly, see
Procedures.
Select error codes by number or type:
101 through 114Processor Test
200 through 215Memory Test
300 through 304Keyboard Test
401 through 403Parallel Printer Test
600 through 699Diskette Drive Test
Retest the system after completing each step. If the problem has been resolved,
do not proceed with the remaining steps.
Removal and Replacement
1101Serial Test
1701 through 1736Hard Drive Test
501 through 516Video Test
2402 through 2456
2458 through 2480
3206Audio Test
8601 through 8602Touch Pad Pointing Device Test
3301 through 6623CD Test
Processor Test Error Codes
Error
CodeDescriptionRecommended Action
101-xxCPU test failedReplace the processor and retest.
102-xxCoprocessor or Weitek Error1. Run the Configuration and Diagnostics
Utilities.
2. Replace the processor board and retest.
103-xxDMA page registers test failedReplace the system board and retest.
104-xxInterrupt controller master test failed
105-xxPort 61 error
106-xxKeyboard controller self-test failed
107-xxCMOS RAM test failed
108-xxCMOS interrupt test failed
109-xxCMOS clock test failed
110-xxProgrammable timer load data test
failed
113-xxProtected mode test failed
114-01Speaker test failed1. Check system configuration.
2. Verify cable connections to speaker.
3. Replace the system board and retest.
Memory Test Error Codes
200-xxMemory machine ID test failed1. Flash the system ROM and retest.
202-xxMemory system ROM checksum failed
2. Replace the system board and retest.
203-xxWrite/Read test failed1. Remove the memory module and retest.
204-xxAddress test failed
211-xxRandom pattern test failed
214-xxNoise test failed
215-xxRandom address test failed
Keyboard Test Error Codes
300-xxFailed ID Test1. Check the keyboard connection. If
301-xxFailed Selftest/Interface Test
302-xxFailed Individual Key Test
304-xxFailed Keyboard Repeat Test
Parallel Printer Test Error Codes
401-xxPrinter failed or not connected1. Connect the printer.
402-xxFailed Port Test
403-xxPrinter pattern test failed
2. Install a new memory module and
retest.
disconnected, turn off the computer and
connect the keyboard.
2. Replace the keyboard and retest.
3. Replace the system board and retest.
2. Check power to the printer.
3. Install the loop-back connector and
retest.
4. Check port and IRQ configuration.
5. Replace the system board and retest.
Diskette Drive Test
600-xx
601-xxDiskette format failed
602-xxDiskette read test failed
603-xx
604-xxDiskette random read test failed
605-xxDiskette ID media failed
606-xxDiskette speed test failed
609-xxDiskette reset controller test failed
610-xxDiskette change line test failed
697-xxDiskette type error
698-xxDiskette drive speed not within limits
699-xx
Diskette ID drive types test
failed
Diskette write, read, compare test
failed
Diskette drive/media ID error1. Replace media.
1. Replace the diskette media and retest.
2. Check and/or replace the diskette power
and signal cables and retest.
3. Replace the diskette drive and retest.
4. Replace the system board and retest.
2. Run the Configuration and Diagnostics
Utilities.
Serial Test Error Codes
1101-xx
1701-xxHard drive format test failed1. Run the Configuration and Diagnostics
1702-xxHard drive read test failed
1703-xx
1704-xxHard drive random seek test failed
1705-xxHard drive controller test failed
1706-xxHard drive ready test failed
1707-xxHard drive recalibration test failed
1708-xxHard drive format bad track test failed
1709-xxHard drive reset controller test failed
1710-xxHard drive park head test failed
Serial port test failed1. Check port configuration
2. Replace the system board and retest.
Hard Drive Test Error Codes
Utilities and verify drive type.
2. Verify that all secondary drives have
Hard drive write/read/compare test
failed
secondary drive capability.
3. Replace the hard drive and retest.
4. Replace the system board and retest.
1715-xxHard drive head select test failed
1716-xx
1717-xxHard drive ECC* test failed
1719-xxHard drive power mode test failed
1724-xxNetwork preparation test failed
1736-xxDrive monitoring test failed
* ECC = Error Correction Code
501-xxVideo controller test failedThe following apply to error codes 501-xx
502-xxVideo memory test failed
503-xxVideo attribute test failed
504-xxVideo character set test failed
505-xx
Hard drive conditional format test
failed
Video Test Error Codes
Video 80 × 25 mode 9 × 14 character
cell test failed
through 516-xx:
1. Disconnect external monitor and test
with internal LCD display.
2. Replace the display assembly and retest.
3. Replace the system board and retest.
506-xx
507-xxVideo 40 × 25 mode test failed
508-xx
509-xx
510-xxVideo 640 × 200 mode test failed
511-xxVideo screen memory page test failed
512-xxVideo gray scale test failed
514-xxVideo white screen test failed
516-xxVideo noise pattern test failed
2402-xxVideo memory test failedThe following steps apply to error codes
2403-xxVideo attribute test failed
2404-xxVideo character set test failed
2405-xx
2406-xx
Video 80 × 25 mode 8 × 8 character
cell test failed
Video 320 × 200 mode color set 0
test failed
Video 320 × 200 mode color set 1
test failed
Video 80 × 25 mode 9 × 14 character
cell test failed
Video 80 × 25 mode 8 × 8 character
cell test failed
2402-xx through 2456-xx:
1. Run the Configuration and Diagnostics
Utilities.
2. Replace the display assembly and retest.
3. Replace the system board and retest.
2408-xx
2409-xx
2410-xxVideo 640 × 200 mode test failed
2411-xxVideo screen memory page test failed
2412-xxVideo gray scale test failed
2414-xxVideo white screen test failed
2416-xxVideo noise pattern test failed
2418-xxECG/VGC memory test failed
2419-xxECG/VGC ROM checksum test failed1. Run the Configuration and Diagnostics
2421-xxECG/VGC 640 × 200 graphics mode
2422-xxECG/VGC 640 × 350 16 color set test
Video 320 × 200 mode color set 0
test failed
Video 320 × 200 mode color set 1
test failed
test failed
failed
Utilities.
2. Disconnect external monitor and test
with internal LCD display.
3. Replace the display assembly and retest.
4. Replace the system board and retest.
2423-xxECG/VGC 640 × 350 64 color set test
failed
2424-xxECG/VGC monochrome text mode test
failed
2425-xxECG/VGC monochrome graphics mode
test failed
2431-xx640 × 480 graphics test failure
2432-xx320 × 200 graphics (256 color mode)
test failure
2448-xxAdvanced VGA Controller test failed
2451-xx132-column Advanced VGA test failed
2456-xxAdvanced VGA 256 Color
test failed
2458-xxAdvanced VGA BitBLT testThe following step applies to error codes
2458-xx through 2480-xx:
2468-xxAdvanced VGA DAC test
2477-xxAdvanced VGA data path test
2478-xxAdvanced VGA BitBLT test
2480-xxAdvanced VGA LineDraw test
Audio Test Error Codes
3206-xxAudio System Internal ErrorReplace the system board and retest.
TouchPad/Pointing Device Interface Test Error Codes
Replace the system board and retest.
8601-xxMouse test failed1. Replace the TouchPad and retest.
2. Replace the system board and retest.
8602-xxInterface test failed
CD Drive Test Error Codes
3301-xxCD drive read test failed1. Replace the CD and retest.
2. Verify that the speakers are connected.
3305-xxCD drive seek test failed
6600-xxID test failed
6605-xxRead test failed
6608-xxController test failed
3. Verify that drivers are loaded and
properly installed.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Troubleshooting Without Diagnostics
This section provides information about how to identify and correct some common hardware, memory, and software
problems. It also explains several types of common messages that may be displayed on the screen. The following pages
contain troubleshooting information on:
AudioMemory
Battery/Battery gaugePC Card
CD drivePower
Diskette/Diskette drivePrinter
DisplayTouch Pad
Hard driveKeyboard/Numeric keypad
Hardware Installation
Since symptoms can appear to be similar, carefully match the symptoms of the computer malfunction against the problem
description in the Troubleshooting tables to avoid a misdiagnosis.
WARNING:To avoid a potential shock hazard during troubleshooting procedures, disconnect all power sources
before removing the keyboard cover or the display bezel.
Before Replacing Parts
Verify that cables are connected properly to the suspected defective parts.
■ Run Computer Setup after connecting external devices.
■ Verify that all required device drivers are installed.
■ Verify that all required changes have been made to the CONFIG.SYS file.
■ Verify that all required changes have been made to the AUTOEXEC.BAT file.
■ Verify that all printer drivers have been installed for each application.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Solving Minor Problems
Some minor problems and possible solutions are outlined in the following tables. If the problem
appears related to a software application, check the documentation provided with the software.
Solving Audio Problems
Some common audio problems and solutions are listed in the following table.
Solving Audio Problems
ProblemProbable CauseSolution(s)
Computer does not beep after the Power-On
Self-Test (POST).
This is typical; it indicates successful
completion of the Power-On Self-Test
(POST).
No action is required.
Solving Battery Pack and Battery Gauge Problems
Some common causes and solutions for battery pack problems are listed in the following table. The
"Solving Power Problems" section in this chapter may also be applicable.
Solving Battery Pack and Battery Gauge Problems
ProblemProbable CauseSolution(s)
Computer won't turn on when battery
pack is inserted and power cord is
unplugged.
Computer is beeping and battery LED
icon is blinking.
Battery pack is discharged.Connect the computer to an external
power source and charge the battery
pack.
Replace the battery pack with a fully
charged battery pack.
Check the battery connectors on the
system board to verify they are evenly
spaced and that they are not bent or
broken.
Battery charge is low.Immediately save any open file(s). Then
do any one of the following:
● Connect the computer to an
external power source to charge
the battery pack.
● Turn off the computer or initiate
Hibernation until you can find
another power source or charge
the battery pack.
Computer battery LED icon (front on the
unit) blinks to indicate low battery
condition, but computer does not beep.
Battery LED icon doesn't light and
battery pack won't fast charge.
You have to set the date and time every
time you turn on the computer.
ProblemProbable CauseSolution(s)
Battery charge does not last as long
as expected.
Volume is turned down too low.Adjust the volume.
Battery pack is already charged.No action is necessary.
Battery pack was exposed to
temperature extremes.
Battery pack is at end of its life.Replace battery pack.
RTC battery is dead.Replace the RTC battery.
Battery is being exposed to high
temperatures or extremely cold
temperatures.
Allow time for the battery pack to return
to room temperature.
Keep the battery pack within the
recommended operating temperature
range 50° F to 104° F (10° C to 40° C)
or recommended storage range
-4° F to 86° F (-20° C to 30° C ).
Recharge the battery pack.
Battery pack is warm to the touch
after charging.
Battery pack operating time is far
less than the documented average
operating time.
Battery has partially self-discharged.Recharge the battery. Discharge the
battery completely and then recharge it.
Power management is disabled.Set a power management level in
Computer Setup.
An external device or PC Card is draining
the battery.
Normal warming has occurred due to
charging.
Power management is turned off or
disabled.
An external device or PC Card is draining
the battery.
Battery pack has partially selfdischarged.
Turn off or disconnect external devices
when not using them.
No action is required.
Enable power management in Computer
Setup and in Windows Power Properties.
Turn off or disconnect external devices
when not using them.
Condition the battery pack by fully
charging, fully discharging, then fully
recharging it.
To maintain the charge, leave battery
packs in the computer when it is
connected to external power.
If the computer is disconnected from
external power for more than two
weeks, remove battery packs from the
computer to reduce the discharge rate.
Battery pack is being exposed to high
temperatures or extremely cold
temperatures.
Keep the battery pack within the
recommended temperature ranges.
Operating: 50° F to 104° F
(10° C to 40° C)
Storage: -4° F to 86° F
(-20° C to 30° C )
Recharge the battery pack.
Solving CD Drive Problems
Some common causes and solutions for CD drive problems are listed in the following table.
Solving CD Drive Problems
ProblemProbable CauseSolution(s)
CD drive cannot read a compact disc.Compact disc is upside down or is
improperly inserted in the CD drive.
CD is CD Plus or Pregap/Track 0 type.Cannot read these type CDs in 24x.
Open the CD loading tray, lay the
compact disc in it (label side up), then
close the tray.
Remove the CD.
Solving Diskette and Diskette Drive Problems
Some common causes and solutions for diskette and diskette drive problems are listed in the
following table.
Solving Diskette and Diskette Drive Problems
ProblemProbable CauseSolution(s)
Diskette drive cannot write to a
diskette.
Diskette is write-protected.Disable the diskette's write-
protect feature or use a
diskette that is not writeprotected.
Computer is writing to
the wrong drive.
Not enough space is left
Check the drive letter in the
path statement.
Use another diskette.
on the diskette.
Drive error has occurred.Run Computer Checkup from
the Compaq Diagnostics
Diskette drive cannot read a
diskette.
diskette.
Diskette is not formatted.Format the diskette. At
the system prompt, enter
FORMAT A:
The wrong type of diskette is
being used.
Use the type of diskette
required by the drive.
Diskette has a bad sector.Copy files to hard drive or
another diskette. Reformat bad
floppy.
Drive error has occurred.Run Computer Checkup from
the Compaq Diagnostics
diskette.
Diskette is not
formatted.
Format the diskette. At the
system prompt, enter
FORMAT A:
Cannot boot from diskette.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.
Solving Display Problems
This section lists some common causes and solutions for computer display and external monitor
problems.
You can perform a monitor self-test on an external VGA color or monochrome monitor by
disconnecting the monitor from the computer. To do so, complete the following steps:
1. Turn off the monitor.
2. Turn off the computer.
3. Disconnect the monitor signal cable from the computer.
4. Turn on the monitor and allow it to warm up for one minute.
The display should be white. A narrow black border may also appear on the left and right sides of
the display. Either of these displays indicates that the monitor is working properly.
Solving Display Problems
ProblemProbable CauseSolution(s)
Screen is dim.Control for brightness or
Adjust the Brightness of the
contrast (if applicable) 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 computer is in direct sunlight,
display by using Fn + F7 (¯ )
or
Fn + F8 (- ).
Adjust the Contrast of the
display by using Fn + F5 (¯ )
or
Fn + F6 (- ).
Tilt display or move computer.
Press any key or touch the
Touch Pad.
move it and allow it to cool off.
Display is blank and the Suspend
icon is flashing.
Internal display is blank and the
screen on an external monitor
System is in Suspend mode.Press any key or touch the
Touch Pad.
Display function was switched
to the external monitor.
Use Fn + F2 to switch between
LCD or CRT.
displays information.
ProblemProbable CauseSolution(s)
Internal display flashes or has garbled
characters when computer is
connected to external monitor.
Using 1024 × 768 or
higher resolution on
external monitor and
Restart the computer.
have toggled back to
internal display, which
supports up to
The light tubes on the edge of the display panel
do not light up at all and Power-On Self-Test
(POST) completes when the unit is powered
up.**
The light tubes on the edge of the display panel
do not light up at all and Power-On Self-Test
(POST) does not complete when the unit is
powered up.**
Backlight (brightness) cannot be adjusted with
Fn + F7 (¯ ) or
Fn + F8 (- ).***
800 × 600.
Improper backlight or display
cable connections
Defective inverter board.Replace the display assembly.
Defective display cable.Replace the display assembly.
Defective display panel.Replace the display assembly.
Defective system board.Replace the system board.
Defective system board.Replace the system board.
Improper display cable
connections.
Replace the display assembly.
1. Reseat the display cable to the
system board.
2. Replace the display assembly.
Contrast cannot be adjusted with
Fn + F5 (¯ ) or Fn + F6 (- ).
** This problem indicates that the backlight or its power circuitry has failed. Since you cannot observe the POST result on
the display panel when the backlight is not functioning, connect the unit to an external monitor before powering the unit
up. If an external monitor is not available, verify that POST completes by opening and closing the display, listening for the
single or double beep, and watching for the LEDs turn on at the front of the computer.
Defective inverter board.Replace the display assembly.
Defective display cable.Replace the display assembly.
Defective system board.Replace the system board.
Improper display cable
connections.
Defective inverter board.Replace the display assembly.
Defective display cable.Replace the display assembly.
Defective system board.Replace the system board.
1. Reseat the display cable to the
system board.
2. Replace the display assembly.
ProblemProbable CauseSolution(s)
This display panel has a continuous pattern
across it (e.g., a "jailbars" pattern), has a
single color on it, or has garbled graphics
across the entire panel. This failure is for
patterns across the entire panel (not just on
one section).
Improper display cable
connections
Defective display cable.Replace the display assembly.
Defective inverter board.Replace the display assembly.
Reseat the display cable to the following
until the problem is solved:
1. System board
2. Display assembly
Ghost bars extending from graphics on the
display.
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.
Defective system board.Replace the system board.
Common characteristic of STN
displays.
Defective display panel.Replace the display assembly.
1. Change the background colors.
2. Adjust the Contrast of the display by
using Fn + F5 (¯ ) or Fn + F6 (- ).
To perform a "self-test" on an external VGA color or monochrome monitor, complete the following steps: The
NOTE:
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.
Solving Hard Drive Problems
Some common causes and solutions for hard drive problems are listed in the following table.
CAUTION:To prevent loss of information, always maintain an up-to-date backup of your hard drive at all
times, in case of errors or failures.
Solving Hard Drive Problems
ProblemProbable CauseSolution(s)
Reading hard drive takes an unusually
long time after restarting the computer.
Hard drive error occurs.Hard drive has bad sectors or has
Hard drive does not work.Hard drive is not seated properly.Turn off and unplug the computer,
System entered Hibernation due to
low battery condition and is now
exiting from it.
failed.
Give the system time to restore the
previously saved data to its exact state
before Hibernation.
Run Computer Checkup.
remove the battery pack, and remove
and then reinstall the hard drive.
Solving Hardware Installation Problems
Some common causes and solutions for hardware installation problems are listed in the following
table.
Solving Hardware Installation Problems
ProblemProbable CauseSolutions(s)
A new device is not recognized as
part of the computer system.
Cable(s) of new external
device are loose or
power cables are unplugged.
Power switch of new external
device is not turned on.
Ensure that all cables are
properly and securely
connected.
Turn off the computer, turn on
the external device, then turn
on the computer to integrate
the device with the computer
system.
Device is not seated properly.Turn off the computer and
reinsert the device.
Solving Keyboard/Numeric Keypad Problems
Some common causes and solutions for keyboard/numeric keypad problems are listed in the
following table.
Solving Keyboard/Numeric Keypad Problems
ProblemProbable CauseSolution(s)
Embedded numeric keypad on
computer keyboard is disabled.
Num Lock function is not
enabled.
Press the Shift+NumLk keys
to enable the Num Lock
function and embedded
numeric keypad. The Num
Lock icon on the status panel
turns on.
Embedded numeric keypad is
disabled and Num Lock function is
on.
External numeric keypad is
connected to the computer.
Disconnect the external
numeric keypad from the
computer.
Solving Memory Problems
Some common causes and solutions for memory problems are listed in the following table.
Solving Memory Problems
ProblemProbable CauseSolution(s)
Memory count during Power-On SelfTest (POST) is incorrect.
"Out of Memory" message is
Optional memory expansion
card is installed incorrectly,
is incompatible with
the computer, or is defective.
System ran out of
Ensure that the optional
memory expansion card is
installed correctly.
Check the application
displayed on the screen or
insufficient memory error occurs
during operation.
Solving Minor Problems (continued)
memory for the application.
Too many TSR (terminateand stay-resident)
applications are running.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Solving PC Card Problems
Some common causes and solutions for PC Card problems are listed in the following table.
Solving PC Card Problems
ProblemProbable CauseSolution(s)
When turned on, the computer
does not beep when a PC Card
is inserted.
Card is not inserted properly.
PC Card beeps are disabled.
Speaker is turned off or
volume is turned down.
PC Card drivers are not
installed.
Ensure the card is inserted
in the correct orientation.
Double-click the PC Card
icon in the Control Panel,
click the Global Settings
tab, the enable PC Card
sound effects.
Press volume buttons to
turn the speaker on, then
increase the volume.
Double click the Add New Hardware icon in the
Control Panel for installation
instructions.
PC Card modem, fax, or
network card does not work.
Card or card driver is not
supported.
Card is not fully inserted into
the slot or is not inserted
properly.
Telephone cord is not
plugged in all the way.
Necessary drivers are not
If PC Card or drivers are not
compatible with Windows,
install drivers and use the
PC Card in MS-DOS mode.
Contact your Compaq
authorized service provider
for a list of PC Cards tested
successfully in Compaq PC
Card platforms.
Ensure the card is inserted
in the correct orientation.
Check and secure telephone
connection.
Install drivers.
PC Card modem or fax card
does not work.
Modem network PC Card
does not work.
Memory or storage card
does not work.
installed (turned on).
You are trying to access the
card using the wrong COM
See
COM port.
Specifications to verify
port.
The card conflicts with a
serial device.
See
Specifications to verify
address.
The card is not supported.Use supported cards only.
Network driver is not installed or is
Install driver.
not set up properly.
Telephone cord is not properly
connected.
SRAM and flash memory cards
Verify telephone
connection.
Install driver.
require the memory card driver to be
loaded (turned on).
Flash memory cards require the
Microsoft FlashFile System to
be loaded.
Hard drives on flash mass storage
cards require the PC Card ATA driver
to be loaded.
You are trying to access the hard
drive card using the wrong drive
letter.
Double-click My
Computer to verify
the drive letter
assigned to the card.
The card is not
supported.
Contact your
Compaq authorized
service provider for a
list of PC Cards
tested successfully in
Compaq PC Card
platforms.
Solving Power Problems
Also see "Solving Battery and Battery Gauge Problems" in this section.
Solving Power Problems
ProblemProbable CauseSolution(s)
Computer won't turn on and
Computer is not connected to
Insert battery or connect
battery pack is not inserted.
Computer turned off while it was
left unattended and the power icon
is off.
a power source.
Power cords to the external
power source are unplugged.
an external power source.
Ensure that power cords
connecting the computer
and the external power
source are plugged in
properly.
Power adapter is defective.Replace AC Adapter and
restart.
System board is defective.Replace the system board.
System initiated Hibernation
due to a critical low-battery
condition.
Replace the battery pack
with a fully charged
battery pack or connect
the computer to an
external power source.
Then turn on the
computer.
System initiated Hibernation
Turn on the computer.
after a preset timeout.
Solving Printer Problems
If you experience problems printing, run a printer self-test. Refer to the documentation provided with your printer for
instructions. If the self-test fails, it is a printer-specific problem. Also refer to the printing section of your application
documentation.
Solving Printer Problems
ProblemProbable CauseSolution(s)
Printer will not turn on.The signal cable may not be
Ensure that the signal
connected properly, or the
printer is unplugged.
Printer will not print.Printer is not turned on or is
off line.
The device drivers for your
application are not installed.
Printer that is set up for a
network is not connected to
the network.
cable is properly
connected and that the
power cord is connected to
the electrical outlet.
Turn the printer on and set
it to on line.
Refer to the printer
documentation to install
the correct printer driver.
Connect the printer to the
network.
Printer cable is too long,
unshielded, or defective.
Paper tray is empty.Fill the paper tray with
Printer prints garbled information.Correct printer drivers
are not installed.
Cable is not
connected properly.
Cable is defective.Replace the printer cable
Replace the cable.
paper and set the printer
to online.
Refer to the printer
documentation to install
the correct printer driver.
Ensure that the printer
signal cable is properly
connected to the
computer.
and retest.
Solving Touch Pad/Pointing Device Problems
Some common causes and solutions for Touch Pad/pointing device problems are listed in the
following table.
Solving Touch Pad/Pointing Device Problems
ProblemCauseSolution(s)
Touch Pad or mouse does not work. Incorrect or no device driver
is installed.
The device driver is not
installed in Windows.
Install the device driver
and add to the
AUTOEXEC.BAT file or
CONFIG.SYS file.
Install the Touch
Pad/mouse driver in
External mouse does not work.Mouse is not securely
connected or is connected to
an incorrect external
connector.
Touch Pad or mouse does not work
Mouse is not enabled.Enter MOUSE at the
even though the device is enabled
in Windows.
Cable not properly seated in
Windows.
Ensure that the mouse is
securely connected to the
appropriate external
connector.
system prompt to activate
the mouse device driver.
Add a line in the
AUTOEXEC.BAT file to
automatically activate the
mouse device driver each
time computer is turned
on or restarted.
Reseat cable.
Cursor skips or moves abnormally
when using the Touch Pad.
Touch Pad board.
Defective Touch Pad board.Replace Touch Pad board.
Defective system board.Replace system board.
Device driver is not correctly
installed in Windows.
The Touch Pad needs to be
cleaned.
Install the appropriate
device driver in Windows.
Clean the Touch Pad with
a cloth dampened with
alcohol or an ammoniabased glass cleaner. Wipe
up liquid with a dry cloth.
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
Cables
Miscellaneous
Hardware and
Plastics Kit
Miscellaneous
Parts
DescriptionSpare Part Number
Quick Restore CD, Belgium* Windows 98346862-381
Belgium* Windows 95346861-381
France* Windows 98346862-051
France* Windows 95346861-051
Germany* Windows 98346862-041
Germany* Windows 95346861-041
Netherlands* Windows 98346862-331
Netherlands* Windows 95346861-331
UK* Windows 98346862-031
UK* Windows 95346861-031
NOTE:* Quick Restore CD's listed above only apply to Model 1230.
Quick Reference Guide162212-001
Documentation
and Software
QuickFind for Windows, North America, Latin America, Asia
Pacific
QuickFind for Windows, Europe, Middle East, Africa
*QuickFind is updated monthly. To complete the QuickFind part number, add the
suffix from the table below for the desired month. If you do not specify the 3-digit
suffix, the default is the current month in which the order is placed.
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 static-sensitive devices or microcircuitry. Often the spark is neither
felt nor heard, but damage occurs. An electronic device exposed to
electrostatic discharge (ESD) may not be affected at all and will work
perfectly throughout a normal cycle. Although, it may function normally for a
while, then degrade in the internal layers, reducing its life expectancy.
Networks built into many integrated circuits provide some protection, but in
many cases, the discharge contains enough power to alter device parameters
or melt silicon junctions.
Generating Static
The table shows how different activities generate static electricity and at
different electrostatic voltage levels.
Typical Electrostatic Voltages
Event10%40%55%
Walking across carpet35,000 V 15,000 V7,500 V
Walking across vinyl floor12,000 V5,000 V3,000 V
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 serving these computers, ensure that cables are placed in
their proper location during the reassembly process. Improper cable placement
can cause severe damage to the unit.
Select the desired illustration.
Removing a Cable from a ZIF Connector.
The ribbon cable position for the
The ribbon cable position for the
The ribbon cable position for the
The cable position for the
speaker assembly.
2.1-GB or 3.2 hard drive.
CD 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
ZIF Connectors
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.
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
Preparing the Computer for Disassembly
Before beginning removal and replacement procedures,
complete the following procedures:
Electrostatic
Discharge
Service
1. Disconnect AC power and any external devices.
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Palmrest
Cover with
Touch Pad
Heatspreader
Keyboard
Processor
Hard Drives
CD Drive
2. Remove the battery pack.
3. Remove any PC Cards.
The battery pack should be removed before
IMPORTANT:
performing any internal maintenance on the
computer.
WARNING:Metal objects can damage the battery pack
as well as the battery contacts in the battery
compartment. To prevent damage, do not allow
metal objects to touch the battery contacts. Place
only the battery pack for the Compaq Presario 1200
Series Portable Computers into the battery
Battery
Charger Board
Modem
Display Panel
Assembly
Upper CPU
Cover
Speaker
Assembly
Diskette Drive
Fan Assembly
System Board
Memory
NOTE:
compartment. Do not force the battery pack into the
bay if insertion does not occur easily.
CAUTION:Do not crush, puncture, or incinerate the
battery pack. Do not open a battery pack, as this
damages the pack, makes it unusable, and exposes
potentially harmful battery components. There are
no field-serviceable parts located inside the battery
pack.
The Compaq Presario 1200 Series Portable
Computers have several screws of various sizes
which are not interchangeable. Care must be taken
during reassembly to ensure that the correct screws
Module
are used in their correct location. During removal
please keep respective screws with their associate
sub-assembly.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
Removing the Palmrest Cover with Touch Pad
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Palmrest
Cover with
Touch Pad
Heatspreader
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.
Keyboard
Processor
Hard Drives
CD Drive
Battery
Charger Board
Modem
Display Panel
Assembly
Upper CPU
Cover
Speaker
Assembly
Diskette Drive
It is not
necessary
to remove
the display
panel
NOTE:
assembly to
access the
interior
components
of the
computer.
To remove the
palmrest cover
with touch pad,
complete the
following steps:
Fan Assembly
System Board
Memory
Module
Prepare the
1.
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.
When replacing
the palm rest
cover ensure
the cable is
NOTE:
properly routed
through the
slot on the
Upper CPU
cover.
To replace the palmrest
cover with touch pad,
reverse the previous
procedures.
Illustrated Parts Catalog | Removal & Replacement Procedures|Specifications
Pin Assignments|Battery Pack Operations
10. Gently pull the flex
cable attached to the
display panel assembly
through the slot on the
Upper CPU cover and
remove the display
panel assembly with
flex and backlight cable
attached.
To replace the display
panel assembly, reverse
the previous
procedures.
When removing
the display panel
assembly,
observe the
NOTE:
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.