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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Troubleshooting
This chapter covers troubleshooting and resolving common problems associated with
Compaq Presario 1800XL Series Notebooks. The basic steps in troubleshooting include:
1. Preparing the Notebook for troubleshooting as outlined in Preliminary Steps
on the
following page.
2. Performing the Power-On Self-Test (POST)
and observing any error messages
displayed.
Note: If the Notebook is unable to complete POST or an error message is displayed, skip
to Step 3 below to try to resolve the problem.
3. Taking the recommended steps described later in this chapter to solve the problems.
When following the recommended actions provided in POST
and Diagnostic Error Codes,
perform the steps in the order listed above. Rerun POST after each recommended action
until the problem is solved, even if no error message occurs. Once the problem is solved,
do not perform any remaining recommended solutions.
Note: If the problem is intermittent, check the Notebook several times to be sure that
the problem is resolved.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Preliminary Steps
Before running 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, clear the password (see Clearing the Power-On
Password later in this chapter).
2. Run Compaq Diagnostics
.
3. Turn off the Notebook and its external devices.
4. Disconnect any external devices you do not want to test.
Note: 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
Notebook, the problem may be related to the external device or its cable. Verify this by
running POST
both with and without the external device connected.
5. Install loopback plugs in the serial and parallel connectors if you would like to test
these ports.
6. Ensure that the hard drive is installed in the Notebook.
7. Ensure that the battery pack is installed and the Notebook is connected to an external
AC power source.
When these preliminary steps are completed, run POST
.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Clearing the Power-On Password
CAUTION: Clearing the Power-on password also removes all setup attributes that
are programmed in the CMOS.
Ä
If you do not know the Power-on password, clear it by performing the following steps:
1. Turn off the Notebook.
2. Disconnect the power cord.
3. Remove the battery
4. Remove the Palmrest cover
5. Remove the keyboard
6. Remove the heat sink
.
.
.
.
7. Locate the CMOS switch to the right of the CD/DVD drive on the system board.
1
8. Slide the black switch to the right
holding it in this position for at least 15 seconds
to ensure that the password is cleared.
9. Reassemble the Notebook (refer to the Removal and Replacement
chapter later in
this MSG).
10. Turn on the Notebook to verify that the Power-on password has been cleared. If it has
not been cleared, repeat this procedure.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Power-On Self-Test (POST)
To run POST, complete these steps:
Turn off the Notebook, then turn it on again. As soon as the Compaq logo appears, press
the ESC key to display the POST messages as they occur. Remember any POST error codes
that are displayed.
If the Notebook does not beep, POST has successfully completed its test and detected no
errors. The Notebook will automatically restart.
Note: If a bootable diskette is installed in the diskette drive, the system will boot from
the diskette instead of the hard drive.
However, if POST detects errors, the Notebook will beep and/or display a text message.
Note: If the Notebook 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
in this chapter.
later
POST Error Messages
A list of the POST error codes and their descriptions is shown in the tables below.
102-System Board Failure
Probable Cause Recommended Action
DMA, timers, and so on Replace the system board
162–System Options Not Set
Probable Cause Recommended Action
Incorrect configuration Run Setup.
CMOS reflects an invalid
Run Setup.
configuration setting.
RAM failure
1. Replace the memory
modules.
2. Replace the system board
Memory test data error
1. Replace the memory
modules.
2. Replace the system board
.
.
.
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Models: XL280, XL380, XL381,
and XL390
XX000YZZ 201–Memory Error
Probable Cause Recommended Action
Memory failure
301-Keyboard Error
Probable Cause Recommended Action
Keyboard failure
304–Keyboard or System Unit Error
1. Replace the memory
modules.
2. Replace the system board
1. Make sure the keys are not
depressed during POST.
2. With the Notebook in
Full-Off mode, reconnect
the keyboard.
3. Replace the keyboard
.
.
Probable Cause Recommended Action
Keyboard or system board
error
1. Replace the keyboard
2. Replace the TouchPad
3. Replace the system board
601–Diskette Controller Error
Probable Cause Recommended Action
Mismatch in drive type or
failure in the diskette
controller
1. Run Checkup (TEST)
2. Check or replace cables
3. Replace the system board
605–Diskette Drive Error
Probable Cause Recommended Action
Mismatch in drive type
1. Run Setup.
2. Check or replace cables
3. Replace the diskette drive
4. Replace the system board
.
.
.
.
.
.
.
.
.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
1780–Primary Hard Drive 0 Failure
Probable Cause Recommended Action
Disk 0 failed to respond
Hard drive format error
1782–Hard Drive Controller
Probable Cause Recommended Action
Hard drive controller failure
1. Run Checkup (TEST)
2. Replace the hard drive
1. Run Checkup (TEST).
2. Replace the hard drive
1. Run Setup.
2. Replace the hard drive
.
.
.
.
Compaq Diagnostics
Compaq Diagnostics utilities come pre-installed on 1800XL Series Notebooks. Run the
diagnostic utilities to view or test system information and external devices. If you run
Compaq Diagnostics from a diskette, be sure that the diagnostic program is version 10.11
or later.
The Diagnostics menu includes the following utilities:
• Checkup (TEST)
• View System Information (INSPECT)
• Prepare Notebook for a Compaq Service Call (RemotePaq)
Customers are encouraged to run the Diagnostics utilities to try to solve a problem before
calling for support. Checkup (TEST)
to a file and printing or saving the error log. The View System Information (INSPECT)
should be run with the options for saving the device list
utility
should also be run with the option for printing or saving the information. Customers should
have these files or the printed information available when calling for support.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Checkup (TEST)
TEST is included on the Compaq Diagnostics Diskette. TEST determines if the various
Notebook components and devices are recognized by the system and are functioning
properly. You can display, print, or save the information generated by TEST.
Follow these steps to run TEST:
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 the diskette drive.
4. Turn on or restart the Notebook. The Notebook boots from the diskette, and after a
few seconds, the diagnostics Welcome screen is displayed.
5. Press Enter to continue. The Diagnostics menu is displayed.
6. Select Computer Checkup from the Diagnostics menu. The Test Option menu is
displayed.
7. Select View the Device List from the Test Option menu. A list of 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 and run
Checkup again.
9. Select one of the following from the Test Option menu:
• Quick Check Diagnostics. Runs a quick, general test on each device with
minimal prompts. If errors occur, they are displayed when the testing is complete.
You cannot print or save the error messages.
• Automatic Diagnostics. Runs unattended, maximum testing of each device with
minimal prompts. You can choose how many times to run the tests, stop on errors,
or print or save a log of errors.
• Prompted Diagnostics. You can choose attended or unattended testing. Allows
the most control over testing options. You can choose to stop on errors, or choose
to print or save a log of errors.
Continued on the next page.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
10. Follow the on-screen instructions as the devices are tested. When testing is complete,
the Test Option menu is displayed.
11. Exit the Test Option and Diagnostics menus.
View System Information (INSPECT)
The 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 INSPECT from the Compaq Diagnostics Diskette:
1. Turn on the external device(s) you want to test. Connect the printer if you want to
print the information.
2. Insert the Compaq Diagnostics Diskette in the diskette drive.
3. Turn on or restart the Notebook. The Notebook boots from the diskette, and after a
few seconds, 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. The
following list is displayed:
System Memory
ROM Audio
Keyboard Operating system
System ports System files
System storage Windows files
Graphics
6. Select the item you want to view and follow the on-screen instructions to cycle
through the screens, return to the list and choose another item, or print the
information.
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Models: XL280, XL380, XL381,
and XL390
Diagnostic Error Codes
Diagnostic error codes are displayed if the system recognizes a problem while running the
Compaq Diagnostics
damaged or defective.
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 has been
resolved, do not complete any remaining steps.
Note: Some of the solutions provided in this chapter involve replacing Notebook components.
Refer to the specific Removal and Replacement
component.
Select error codes by number or type:
program. These error codes help identify subassemblies that may be
procedures later in this guide for each
101 - 114: Processor Test (pg 10)
•
•
200 - 215: Memory Test (pg 10)
•
300 - 304: Keyboard Test (pg 11)
•
401 - 403: Parallel/Printer Test (pg 11)
•
501 - 516: Video Test (pg 14)
•
600 - 699: Diskette Drive Test (pg 12)
•
1101: Serial Test (pg 12)
•
1701 - 1736: Hard Drive Test (pg 13)
•
2402 - 2418: Video Test (pg 15)
•
2419 - 2480: Video Test (pg 16)
•
3206: Audio Test (pg 16)
•
3301 - 6623: DVD or CD Test (pg 17)
•
8601 - 8602: TouchPad Test (pg 17)
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Processor Test Error Codes
Error Code Description Recommended Action
101-xx CPU test failed Replace the processor
102-xx Coprocessor or Weitek Error
1. Run the Configuration and Diagnostics
utilities.
2. Replace the processor
103-xx DMA page registers test failed The following solution applies to error
104-xx Interrupt controller master test
failed
codes 103-xx through 113-xx:
Replace the system board
105-xx Port 61 error
106-xx Keyboard controller self-test
failed
107-xx CMOS RAM test failed
108-xx CMOS interrupt test failed
109-xx CMOS clock test failed
110-xx Programmable timer load data
test failed
113-xx Protected mode test failed
114-01 Speaker test failed
1. Check system configuration.
2. Verify cable connections to speakers.
3. Replace the system board
and retest.
and retest.
and retest.
and retest.
Error Code Description Recommended Action
200-xx
202-xx
203-xx Write/Read test failed The following steps apply to error codes
204-xx Address test failed
211-xx Random pattern test failed
214-xx Noise test failed
215-xx Random address test failed
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Memory Test Error Codes
Memory machine ID test failed
Memory system ROM checksum
failed
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1. Flash the system ROM and retest.
2. Replace the system board
and retest.
203-xx through 215-xx:
1. Remove the memory module
and
retest.
2. Install a new memory module
and
retest.
1800 S
ERIES
Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Keyboard Test Error Codes
Error Code Description Recommended Action
300-xx Failed ID Test The following steps apply to error codes
301-xx Failed Self-Test/Interface Test
302-xx Failed Individual Key Test
304-xx Failed Keyboard Repeat Test
Parallel/Printer Test Error Codes
Error Code Description Recommended Action
401-xx Printer failed or not connected The following steps apply to error codes
402-xx Failed Port Test
403-xx Printer pattern test failed
300-xx through 304-xx:
1. Check the keyboard connection. If
disconnected, turn off the Notebook
and reconnect the keyboard.
2. Replace the keyboard
3. Replace the system board
and retest.
and retest.
401-xx through 403-xx:
1. Connect the printer.
2. Check power to the printer.
3. Install loopback connector on printer
port and retest.
4. Check port and IRQ configuration.
5. Replace the system board
and retest.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Diskette Drive Test Error Codes
Error Code Description Recommended Action
600-xx Diskette ID drive types test
failed
601-xx Diskette format failed
602-xx Diskette read test failed
603-xx Diskette write, read, compare
test failed
604-xx Diskette random read test failed
605-xx Diskette ID media failed
606-xx Diskette speed test failed
609-xx Diskette reset controller test
failed
610-xx Diskette change line test
697-xx Diskette type error
698-xx Diskette drive speed not within
limits
699-xx Diskette drive/media ID error
The following steps apply to error codes
600-xx through 698-xx:
1. Replace the diskette media and retest.
2. Check and/or replace the diskette
drive cables and retest.
3. Replace the diskette drive
4. Replace the system board
1. Replace media.
2. Run the Configuration and Diagnostics
utilities.
and retest.
and retest.
Error Code Description Recommended Action
1101-xx Serial port test failed
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Serial Test Error Codes
1. Check port configuration.
2. Replace the system board
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
and retest.
1800 S
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Hard Drive Test Error Codes
Error Code Description Recommended Action
1701-xx Hard drive format test failed The following steps apply to error codes
1702-xx Hard drive read test failed
1703-xx Hard drive write/read/compare
test failed
1704-xx Hard drive random seek test
failed
1705-xx Hard drive controller test failed
1706-xx Hard drive ready test failed
1707-xx Hard drive recalibration test
failed
1708-xx Hard drive format bad track test
failed
1709-xx Hard drive reset controller test
failed
1710-xx Hard drive park head test failed
1715-xx Hard drive head select test failed
1716-xx Hard drive conditional format
test failed
1717-xx Hard drive ECC* test failed
1719-xx Hard drive power mode test
failed
1724-xx Network preparation test failed
1736-xx Drive monitoring test failed
1701-xx through 1736-xx:
1. Run the Configuration and Diagnostics
utilities and verify drive type.
2. Verify that all secondary drives have
secondary drive capability.
3. Replace the hard drive
4. Replace the system board
and retest.
and retest.
*ECC = Error Correction Code
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Video Test Error Codes
Error Code Description Recommended Action
501-xx Video controller test failed The following steps apply to error codes
502-xx Video memory test failed
503-xx Video attribute test failed
504-xx Video character set test failed
505-xx Video 80 x 25 mode 9 x 14
character cell test failed
506-xx Video 80 x 25 mode 8 x 8
character cell test failed
507-xx Video 40 x 25 mode test failed
508-xx Video 320 x 200 mode color set
0 test failed
509-xx Video 320 x 200 mode color set
1 test failed
510-xx Video 640 x 200 mode test
failed
511-xx Video screen memory page test
failed
512-xx Video gray scale test failed
514-xx Video white screen test failed
516-xx Video noise pattern test failed
501-xx through 516-xx:
1. Disconnect external monitor and test
with the Notebook display.
2. Replace the display assembly
and
retest.
3. Replace the system board
and retest.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Video Test Error Codes
Error Code Description Recommended Action
2402-xx Video memory test failed The following steps apply to error codes
2403-xx Video attribute test failed
2404-xx Video character set test failed
2405-xx Video 80 x 25 mode 9 x 14
character cell test failed
2406-xx Video 80 x 25 mode 8 x 8
character cell test failed
2408-xx Video 320 x 200 mode color set
0 test failed
2409-xx Video 320 x 200 mode color set
1 test failed
2410-xx Video 640 x 200 mode test
failed
2411-xx Video screen memory page test
failed
2412-xx Video gray scale test failed
2414-xx Video white screen test failed
2416-xx Video noise pattern test failed
2418-xx ECG/VGC memory test failed
2402-xx through 2418-xx:
1. Run the Configuration and Diagnostics
utilities.
2. Replace the display assembly
and
retest.
3. Replace the system board
and retest.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Video Test Error Codes
Error Code Description Recommended Action
2419-xx ECG/VGC ROM checksum test
failed
2421-xx ECG/VGC 640 x 200 graphics
mode test failed
2422-xx ECG/VGC 640 x 350 16-color set
test failed
2423-xx ECG/VGC 640 x 350 64-color set
test failed
2424-xx ECG/VGC monochrome text
mode test failed
2425-xx ECG/VGC monochrome graphics
mode test failed
2431-xx 640 x 480 graphics test failure
2432-xx 320 x 200 graphics (256-color
mode) test failure
2448-xx Advanced VGA Controller test
failed
2451-xx 132-column Advanced VGA test
failed
2456-xx Advanced VGA 256 Color test
failed
2458-xx Advanced VGA BitBLT test failed The following solution applies to error
2468-xx Advanced VGA DAC test failed
2477-xx Advanced VGA data path test
failed
2478-xx Advanced VGA BitBLT test failed
2480-xx Advanced VGA LineDraw test
failed
The following steps apply to error codes
2419-xx through 2456-xx:
1. Run the Configuration and Diagnostics
utilities.
2. Disconnect external monitor and test
with the Notebook display.
3. Replace the display assembly
and
retest.
4. Replace the system board
and retest.
codes 2458-xx through 2480-xx:
Replace the system board
and retest.
Error Code Description Recommended Action
3206-xx Audio System Internal Error Replace the system board
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Audio Test Error Codes
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
and retest.
1800 S
ERIES
Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
TouchPad Interface Test Error Codes
Error Code Description Recommended Action
8601-xx Mouse test failed The following steps apply to error codes
8602-xx Interface test failed
DVD or CD Drive Test Error Codes
Error Code Description Recommended Action
3301-xx DVD or CD drive read test failed The following steps apply to error codes
3305-xx DVD or CD drive seek test failed
6600-xx ID test failed
6605-xx Read test failed
6608-xx Controller test failed
6623-xx Random read test failed
8601-xx through 8602-xx:
1. Replace the TouchPad
2. Replace the system board
and retest.
and retest.
3301-xx through 6623-xx:
1. Replace the DVD or CD media and
retest.
2. Verify that the speakers cables are
properly connected.
3. Verify that drivers are loaded and
properly installed.
4. Replace the CD/DVD drive
5. Replace the system board
and retest.
and retest.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
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.
CAUTION: Carefully match the symptoms against the problem described to avoid
a misdiagnosis.
Ä
WARNING: To avoid a potential shock hazard during troubleshooting procedures,
disconnect all power sources before removing the keyboard cover or the display
Å
bezel.
Select from the following to diagnose and solve problems related to each topic:
Audio Keyboard/Numeric Keypad
Battery Memory
CD or DVD Drive PC Card
Diskette Drive Power
Display Printer
Hard Drive TouchPad
Hardware Installation
Before Replacing Parts
• Verify that all cables are properly connected to the parts that are to be tested.
• Run 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.
• Check the printer connection.
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Models: XL280, XL380, XL381,
and XL390
Solving Minor Problems
Some problems and possible solutions are outlined in the following tables. If the problem
appears to be related to a software application, check the documentation provided with the
software.
Audio Solutions
A common audio problem and solution are listed in the following table.
Audio
Problem Probable Cause Solution
Notebook does not
beep after the
Power-On Self-Test
This is typical; it indicates
successful completion of the
Power-On Self-Test (POST).
(POST).
Battery Pack/Gauge Solutions
No action is required.
Some causes and solutions for common battery pack problems are listed in the following
table. Power Solutions
later in this chapter may also be applicable to the following
problems.
Battery Pack/Gauge
Problem Probable Cause Solution(s)
Notebook won’t turn
on when battery pack
is inserted and power
cord is unplugged.
Battery pack is discharged.
•
Connect the Notebook 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 not
bent or broken.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Battery Pack/Gauge
Problem Probable Cause Solution(s)
Notebook is beeping
and battery (
icon is blinking.
Battery (
icon on the front of the
unit blinks to indicate
low-battery condition,
but Notebook does not
beep.
Battery charging
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
Notebook.
Battery charge does
not last as long as
expected.
;
;
)
9
Battery charge is low. Immediately save any open
)
Volume is turned down too
low.
Battery pack is already
charged.
Battery pack was exposed to
temperature extremes.
Battery pack is at the end of
its life.
RTC battery is dead. Replace the RTC battery.
Battery is exposed to high or
extremely cold temperatures.
file(s). Then complete one of the
following steps:
•
Connect the Notebook to an
external power source to
charge the battery pack.
•
Turn off the Notebook or initiate
Hibernation until you can find
another power source or charge
the battery pack.
Adjust the volume.
No action is necessary.
Allow time for the battery pack to
return to room temperature.
Replace the battery pack
Keep the battery pack within the
recommended temperature range
for operation or storage.
•
Operating Range: 50°F to
104°F (10°C to 40°C)
•
Storage Range: -4°F to 86°F
(-20°C to 30°C)
Recharge the battery pack.
.
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Models: XL280, XL380, XL381,
and XL390
Battery Pack/Gauge
Problem Probable Cause Solution(s)
Battery charge does
not last as long as
expected.
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.
Power management is
disabled.
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
self-discharged.
Battery pack is exposed to
high or extremely cold
temperatures.
Recharge the battery. Discharge
the battery completely and then
recharge it.
Set a power management level in
Setup.
Turn off or disconnect external
devices when not in use.
No action is required.
Enable power management in
Setup and in Windows Power
Properties.
Turn off or disconnect external
devices when not in use.
Condition the battery pack by fully
charging, fully discharging, then
fully recharging it.
To maintain the charge, leave
battery packs in the Notebook
when it is connected to external
power.
If the Notebook is disconnected
from external power for more
than two weeks, remove battery
packs from the Notebook to
reduce the discharge rate.
Keep the battery pack within the
recommended temperature range
for operation or storage.
•
Operating Range: 50°F to
104°F (10°C to 40°C)
•
Storage Range: -4°F to 86°F
(-20°C to 30°C)
Recharge the battery pack.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
CD and DVD Drive Solutions
Some causes and solutions for CD and DVD drive problems are listed in the following
table.
CD or DVD Drive
Problem Probable Cause Solution(s)
CD or DVD drive
cannot read a Compact
Disc or Digital Versatile
Disc is upside down or is
improperly inserted in the CD
or DVD drive.
Disc.
CD is CD Plus or
Pregap/Track 0 type.
Diskette Drive Solutions
Some causes and solutions for diskette drive problems are listed in the following table.
Diskette Drive
Open the loading tray, lay the
compact disc in it (label side up),
then close the tray.
Cannot read these type CDs in
24X. Remove the CD.
Problem Probable Cause Solution(s)
Diskette drive cannot
write to a diskette.
Diskette is write-protected. Disable the diskette’s
write-protect feature or use
a diskette that is not
write-protected.
Notebook is writing to the
wrong drive.
Not enough space is left on
Check the drive letter in the path
statement.
Use another diskette.
the diskette.
Drive error has occured. Run TEST from the Compaq
Diagnostics diskette.
Diskette is not formatted. Format the diskette. At the
system prompt, enter
FORMAT A:
Diskette drive cannot
read a diskette.
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 diskette.
Drive error has occurred. Run TEST from the Compaq
Diagnostics diskette.
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Diskette Drive
Problem Probable Cause Solution(s)
Diskette drive cannot
read a diskette.
Cannot boot from
diskette.
Display Solutions
This section lists some causes and solutions for common Notebook display and external
monitor problems.
You can perform a monitor self-test on an external VGA color or monochrome monitor
by completing the following steps:
1.Turn off the monitor.
Diskette is not formatted. Format the diskette. At the
system prompt, enter
FORMAT A:
Bootable diskette is not in the
diskette drive.
Diskette Boot has incorrect
setting in Setup.
Put the bootable diskette in the
diskette drive.
Run Setup and set diskette as first
to boot.
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.
Display
Problem Probable Cause Solution(s)
Screen is dim. Brightness control
(if applicable) is not set
properly.
The Notebook display is in
direct sunlight.
Screen is blank. Screen saver was initiated or
display was turned off by
Power Management due to
lack of user activity.
Adjust the display brightness by
using Fn+F7 or Fn+F8.
Tilt the display or move the
Notebook.
Press any key or touch the
TouchPad.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Display
Problem Probable Cause Solution(s)
Display has overheated. Turn off the Notebook, and if
necessary move it out of direct
sunlight to allow it to cool.
Display is blank and
the Standby
icon is
é
flashing.
Notebook display is
blank and the screen
on an external monitor
displays information.
Notebook display
flashes or has garbled
characters when
Notebook is connected
to external monitor.
The light tubes on the
edge of the display
panel do not light up at
all and the Power-On
Self-Test (POST)
completes on
startup.**
The light tubes on the
edge of the display
panel do not light up at
all and the Power-On
Self-Test does not
complete on startup.**
System is in Standby mode. Press any key or touch the
TouchPad.
Display function was switched
to the external monitor.
Press Fn+F3 to switch between
the external monitor and the
Notebook display (you may have
to press more than once).
The external monitor is set for
Restart the Notebook.
1024 x 768 or higher
resolution and view is toggled
back to the Notebook display,
which supports up to
800 x 600.
Improper backlight or display
cable connections.
1. Check the display cable
connections and retest.
2. Replace the display assembly
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
.
.
.
.
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**The backlight 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 restarting 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.
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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ERIES
Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Display
Problem Probable Cause Solution(s)
Backlight (brightness)
cannot be adjusted
with Fn+F7 or Fn+F8.
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 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 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
1. Reseat the display cable to the
system board.
2. Replace the display assembly
Reseat 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.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Hard Drive Solutions
Some causes and solutions for hard drive problems are listed in the following table.
CAUTION: To prevent loss of information, maintain an up-to-date backup of your
hard drive in case of errors or failures.
Ä
Hard Drive
Problem Probable Cause Solution(s)
Reading hard drive
takes an unusually
long time after
restarting the
Notebook.
Hard drive error
occurs.
Hard drive does not
work.
System entered Hibernation
due to low-battery condition
and is now exiting from it.
Hard drive has bad sectors or
has failed.
Hard drive is not seated
properly.
Give the system time to restore
the previously saved data to its
exact state before Hibernation.
Run Checkup (TEST).
Turn off and unplug the Notebook,
remove the battery pack
remove and then reinstall the
hard drive.
, and
Hardware Installation Solutions
The possible cause and some solutions for a hardware installation problem are listed in
the following table.
Hardware Installation
Problem Probable Cause Solution(s)
A new device is not
recognized as part of
the system.
Cable(s) of new external
device are loose or power
cables are unplugged.
Power switch of new external
device is not turned on.
Device is not seated properly. Turn off the Notebook and reinsert
Ensure that all cables are
proplerly and securely connected.
Turn off the Notebook, turn on the
external device, then turn on the
Notebook to integrate the device
with the system.
the device.
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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ERIES
Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Keyboard/Numeric Keypad Solutions
Some causes and solutions for keyboard/numeric keypad problems are listed in the
following table.
Keyboard/Numeric Keypad
Problem Probable Cause Solution(s)
Embedded numeric
keypad on Notebook
keyboard is disabled.
Embedded numeric
keypad is disabled and
Num Lock function is
on.
Memory Solutions
Some causes and solutions for memory problems are listed in the following table.
Num Lock function is not
enabled.
External numeric keypad is
connected to the Notebook.
Press the Shift+NumLk keys to
enable the Num Lock function and
embedded numeric keypad
(Num Lock light
is on).
à
Disconnect the external numeric
keypad from the Notebook.
Memory
Problem Probable Cause Solution(s)
Memory count during
Power-On Self-Test
(POST) is incorrect.
“Out of Memory”
message is displayed
on the screen or
insufficient memory
error occurs during
Optional memory expansion
card is installed incorrectly, is
incompatible with the
Notebook, or is defective.
System ran out of memory for
the application.
Ensure that the optional memory
expansion card is installed
correctly, and then restart the
Notebook.
Check the application
documentation for memory
requirements.
If necessary, install additional
memory.
operation.
Too m any TS R
(terminate-and-stay-resident)
Remove from memory any TSR
applications you do not need.
applications are running.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
PC Card Solutions
The following table lists some causes and solutions for PC card problems.
PC Card
Problem Probable Cause Solution(s)
While turned on, the
Notebook does not
beep when a PC card is
inserted.
PC card modem, fax,
or network card does
not work.
PC card modem or fax
card does not work.
Card is not inserted properly. Make sure that the card is
inserted properly.
PC card beeps are disabled. From Control Panel, double-click
PC Card, click the Global
Settings tab, and enable
PC Card sound effects.
Speaker is turned off or
volume is turned down.
Press Volume buttons to turn the
speaker on and then increase the
volume.
PC card drivers are not
installed.
From Control Panel, double-click
Add New Hardware for
installation instructions.
If PC card or drivers are not
compatible with Windows, install
drivers and use the PC card in
MS-DOS mode.
Card or card driver is not
supported.
Contact a Compaq authorized
Service Provider for a list of
PC cards tested sucessfully in
Compaq platforms.
Card is not fully inserted into
the slot or is not inserted
Ensure that the card is inserted in
the slot in the correct orientation.
properly.
Telephone cord is not plugged
in all the way.
Necessary drivers are not
Check and secure telephone
connection.
Install drivers.
installed (enabled).
You are trying to access the
card using the wrong COM
See the Specifications
verify the correct COM port.
port.
The card conflicts with a serial
device.
See the Specifications chapter to
verify the correct address.
chapter to
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
1800 S
ERIES
Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
PC Card
Problem Probable Cause Solution(s)
PC card modem or fax
card does not work.
Modem network
PC card does not work.
Memory or storage
PC card does not work.
The card is not supported. Use supported cards only.
Network driver is not installed
Install driver.
or is not set up properly.
Telephone cord is not properly
Verify telephone connection.
connected.
SRAM and Flash memory
Install driver(s).
cards require the memory
card driver (loaded and
enabled).
Flash memory cards require
the Microsoft FlashFile
System.
Hard drives on Flash mass
storage cards require the
PC card ATA driver.
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 a Compaq-authorized
Service Provider for a list of
PC cards tested successfully in
Compaq platforms.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Power Solutions
Some causes and solutions for power problems are listed in the following table. See also
Battery Pack/Gauge Solutions
Problem Probable Cause Solution(s)
Notebook will not turn
on and the battery
pack is not inserted.
Notebook turned off
while it was left
unattended and the
Power
ª icon is off.
in this chapter.
Power
Notebook is not connected to
a power source.
Power cords to the external
power source are unplugged.
Power adapter is defective. Replace AC Adapter and restart.
System initiated Hibernation
after a preset timeout.
System initiated Hibernation
due to a critical low-battery
condition.
System board is defective. Replace the system board.
Insert battery or connect an
external power source.
Ensure that power cords
connecting the Notebook and the
external power source are
plugged in properly.
Turn on the Notebook.
Replace the battery pack with a
fully charged battery pack, or
connect the Notebook to an
external power source. Then turn
on the Notebook.
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Printer Solutions
If you experience problems printing, run a printer self-test. Refer to the documentation
provided with the printer for instructions. If the self-test fails, the problem is associated
with the printer, not the Notebook. To diagnose other printing problems, refer to the
printing section of the application documentation.
Printer
Problem Probable Cause Solution(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
offline.
Paper tray is empty. Fill the paper tray with paper and
The device drivers for the
application are not installed.
Printer is set up for a
network, but is not connected
to the network.
Printer cable is too long,
unshielded, or defective.
Printer prints garbled
information.
Correct printer drivers are not
installed.
Cable is not connected
properly.
Cable is defective. Replace the printer cable and
Make sure 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.
set the printer to online.
Refer to the printer
documentation to install the
correct printer driver.
Connect the printer to the
network.
Replace the cable.
Refer to the printer
documentation to install the
correct printer driver.
Make sure that the printer signal
cable is properly connected to the
Notebook.
retest.
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
TouchPad/Pointing Device Solutions
The following table lists some causes and solutions for TouchPad/pointing device
problems.
TouchPad/Pointing Device
Problem Probable Cause Solution(s)
TouchPad or mouse
does not work.
External mouse does
not work.
TouchPad or mouse
does not work even
though the device is
enabled in Windows.
Cursor skips or moves
abnormally when using
the TouchPad.
Incorrect or no device driver
is installed.
Install the device driver and add
to the AUTOEXEC.BAT file or
CONFIG.SYS file.
The device driver is not
installed in Windows.
Mouse is not securely
connected or is connected to
an incorrect external
Install the TouchPad/mouse driver
in Windows.
Ensure that the mouse is securely
connected to the appropriate
external connector.
connector.
Mouse is not enabled. Enter mouse at the system
prompt to activate the mouse
device driver.
Add a line in the AUTOEXEC.BAT
file to automatically activate the
mouse driver each time the
computer is turned on or
restarted.
Cable is not properly seated
Reseat cable.
on TouchPad board.
Defective TouchPad board. Replace the TouchPad board.
Defective system board. Replace system board
Device driver is not correctly
installed in Windows.
The TouchPad needs to be
cleaned.
Install the appropriate device
driver in Windows.
Clean the TouchPad with a cloth
dampened with alcohol or an
.
ammonia-based glass cleaner.
Wipe up liquid with a dry cloth.
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RESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE
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Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Contacting Compaq Support
Customers should provide the following information when contacting Compaq Reseller
Support:
• Product name
• Product serial number
• Purchase date
• Conditions under which the problem occurred
• Any error messages that have occurred
• Hardware configuration
• Type of printer connected
• Hardware/software installed
• Printed result of Checkup (TEST)
• Printed copies of CONFIG.SYS and AUTOEXEC.BAT files, if possible.
Shipping Preparation
Before shipping 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 all external devices.
3. Disconnect the external devices from their power sources, then from the Notebook.
Important: Make sure 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.
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