compaq presario 1230 1232 User Manual

							United States     January 3, 2003 
 
Maintenance & Service Guide
Presario 1200 Series
Models: 1230 and 1232  
 | Home Page | Notice | Preface | Product Description | Troubleshooting  
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications 
Pin Assignments | Battery Pack Operations
Clearing the Power-on Password
Clearing the power-on 
password requires 
removing all Setup 
attributes that are 
programmed in the 
CMOS. The 
 RTC 
battery is located on 
the system board.
If the password is not 
known, clear it by 
performing the 
following steps: 
1. Turn off the 
computer.
2. Disconnect the power 
cord.
3. Remove the battery 
pack.
4. Remove the Palmrest 
Cover with Touch Pad.
5. Remove the 
heatspreader.
6. Remove the 
keyboard.
7. The 
 dip switch 
contains four bits. Set 
the third bit to ON for 
30 seconds and return 
it to OFF position.
8. Reassemble the 
computer.
9. Turn on the 
computer to verify that 
the power-on password 
has been cleared. If it 
has not been cleared, 
repeat Steps 1 through 
10.
 
 
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Maintenance & Service Guide
Presario 1200 Series
Models: 1230 and 1232 
 | Home Page | Notice | Preface | Product Description | Troubleshooting  
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 t\
he 
Diagnostics utilities when you want to view or test system information a\
nd 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: 
n     Computer Checkup (TEST)
n     View System Information (INSPECT)
n     Prepare Computer for a Compaq Service Call (RemotePaq)
If you have a problem you cannot solve, run the Diagnostics utilities be\
fore 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 (IN\
SPECT) utility 
and select to print or to save that information. Have the files or the p\
rinted 
information available when you call for support. 
Computer Checkup (TEST) 
Computer Checkup (TEST) determines whether the various computer compon\
ents 
and devices are recognized by the system and are functioning properly. Y\
ou 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 cond\
ition could 
interrupt the program.)
2. Turn on the external devices that you want to test. Connect the print\
er 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, an\
d 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 prop\
erly. 
9. Select one of the following from the Test Option menu: 
n     Quick Check Diagnostics. Runs a quick, general test on each device with a 
minimal number of prompts. If errors occur, they display when the testin\
g is 
complete. You cannot print or save the error messages.
n     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.
n     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. Whe\
n 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 abo\
ut 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 C\
ompaq 
Diagnostics diskette:
1. Turn on the external devices that you want to test. Connect the print\
er 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, an\
d 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:
System Memory
ROM Audio
Keyboard Operating system
System ports System files
System storage Windows files
Graphics
7. Follow the instructions on the screen to cycle through the screens, t\
o return to the 
list and choose another item, or to print the information.
 
 
privacy statement
legal notices 
						

							United States     January 3, 2003 
 
Maintenance & Service Guide
Presario 1200 Series
Models: 1230 and 1232 
 | Home Page | Notice | Preface | Product Description | Troubleshooting  
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications 
Pin Assignments | Battery Pack Operations
Contacting Compaq Support
Obtain the following information before contacting Compaq Reseller Suppo\
rt: 
l     Product name
l     Product serial number 
l     Purchase date
l     Conditions under which the problem occurred
l     Any error messages that have occurred
l     Hardware configuration
l     Type of printer connected
l     Hardware/software being used
l     Printed result of Computer Checkup (TEST)
l     Printed copies of CONFIG.SYS and AUTOEXEC.BAT files, if possible
Shipping Preparation
To ship the computer, complete the following steps:
1.  Back up the critical hard drive files. Ensure that backup tapes/disk\
ette are 
not exposed to electrical or magnetic fields while stored in transit.
2.  Turn off the computer and external devices.
3.  Disconnect the external devices from their power sources, then from \
the 
computer. 
IMPORTANT:Ensure that there is no diskette in the diskette drive and that 
there are no PC Cards in the PC slots. 
4.  Close the display and all exterior doors of the computer.
5.  Pack the computer with sufficient packing material to protect it. Us\
e the 
original packing box or similar packaging.
 
 
privacy statement
legal notices 
						

							United States     January 3, 2003 
 
Maintenance & Service Guide
Presario 1200 Series
Models: 1230 and 1232 
 | Home Page | Notice | Preface | Product Description | Troubleshooting  
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 ru\
nning the Compaq 
Diagnostic program. These error codes help identify possibly defective s\
ubassemblies. 
The following tables list error codes, a description of the error condit\
ion, and the action required 
to resolve the error condition. 
IMPORTANT: Retest the system after completing each step. If the problem has been re\
solved, 
do not proceed with the remaining steps.
For the removal and replacement of a particular subassembly, see 
Removal and Replacement 
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
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 
Code Description Recommended Action
101-xx CPU test failed Replace the processor and retest.
102-xx Coprocessor or Weitek Error 1. Run the Configuration and Diagnostics 
Utilities. 
2. Replace the processor board and retest.
103-xx DMA page registers test failed Replace the system board and retest. 
104-xx Interrupt controller master test failed
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 speaker. 
3. Replace the system board and retest.
Memory Test Error Codes
200-xx Memory machine ID test failed 1. Flash the system ROM and retest.
2. Replace the system board and retest.
202-xx Memory system ROM checksum failed
203-xx Write/Read test failed 1. Remove the memory module and retest.
2. Install a new memory module and 
retest.
204-xx
Address test failed
211-xx Random pattern test failed
214-xx Noise test failed
215-xx Random address test failed
Keyboard Test Error Codes
300-xx Failed ID Test 1. Check the keyboard connection. If 
disconnected, turn off the computer and 
connect the keyboard.
2. Replace the keyboard and retest.
3. Replace the system board and retest.
301-xx
Failed Selftest/Interface Test
302-xx Failed Individual Key Test
304-xx Failed Keyboard Repeat Test
Parallel Printer Test Error Codes
401-xx Printer failed or not connected 1. Connect the printer.
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.
402-xx
Failed Port Test
403-xx Printer pattern test failed
Diskette Drive Test
600-xx Diskette ID drive types test 
failed 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.
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 failed
697-xx Diskette type error
698-xx Diskette drive speed not within limits
699-xx Diskette drive/media ID error
1. Replace media.
2. Run the Configuration and Diagnostics 
Utilities.
Serial Test Error Codes
1101-xx Serial port test failed
1. Check port configuration
2. Replace the system board and retest.
Hard Drive Test Error Codes
1701-xx Hard drive format test failed 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 and retest. 
4. Replace the system board and retest.
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
* ECC = Error Correction Code Video Test Error Codes
501-xx Video controller test failed The following apply to error codes 501-xx 
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.
502-xx
Video memory test failed
503-xx Video attribute test failed
504-xx Video character set test failed
505-xx Video 80 × 25 mode 9 × 14 character 
cell test failed
506-xx Video 80 × 25 mode 8 × 8 character 
cell test failed
507-xx Video 40 × 25 mode test failed
508-xx Video 320 × 200 mode color set 0 
test failed
509-xx Video 320 × 200 mode color set 1 
test failed
510-xx Video 640 × 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
2402-xx Video memory test failed The following steps apply to error codes 
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.
2403-xx
Video attribute test failed
2404-xx Video character set test failed
2405-xx Video 80 × 25 mode 9 × 14 character 
cell test failed
2406-xx Video 80 × 25 mode 8 × 8 character 
cell test failed
2408-xx Video 320 × 200 mode color set 0 
test failed
2409-xx Video 320 × 200 mode color set 1 
test failed
2410-xx Video 640 × 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
2419-xx ECG/VGC ROM checksum test failed 1. Run the Configuration and Diagnostics 
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.
2421-xx
ECG/VGC 640 × 200 graphics mode 
test failed
2422-xx ECG/VGC 640 × 350 16 color set test 
failed
2423-xx ECG/VGC 640 × 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 × 480 graphics test failure
2432-xx 320 × 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 The following step applies to error codes 
2458-xx through 2480-xx:
Replace the system board and retest.
2468-xx
Advanced VGA DAC test
2477-xx Advanced VGA data path test
2478-xx Advanced VGA BitBLT test
2480-xx Advanced VGA LineDraw test
Audio Test Error Codes
3206-xx Audio System Internal Error Replace the system board and retest.
TouchPad/Pointing Device Interface Test Error Codes
8601-xx Mouse test failed 1. Replace the TouchPad and retest.
2. Replace the system board and retest.
8602-xx Interface test failed
CD Drive Test Error Codes
3301-xx CD drive read test failed 1. Replace the CD and retest.
2. Verify that the speakers are connected.
3. Verify that drivers are loaded and 
properly installed.
4. Replace the CD drive and retest.
5. Replace the system board and retest.
3305-xx
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
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privacy statement
legal notices 
						

							United States     January 3, 2003 
 
Maintenance & Service Guide
Presario 1200 Series
Models: 1230 and 1232 
 | Home Page | Notice | Preface | Product Description | Troubleshooting  
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 drive Power
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, dis\
connect 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 par\
ts.
 
n     Run Computer Setup after connecting external devices.
n     Verify that all required device drivers are installed.
n     Verify that all required changes have been made to the CONFIG.SYS file.
n     Verify that all required changes have been made to the AUTOEXEC.BAT file.
n     Verify that all printer drivers have been installed for each application\
.
 
 
privacy statement
legal notices 
						

							United States     January 3, 2003 
 
Maintenance & Service Guide
Presario 1200 Series
Models: 1230 and 1232 
 | Home Page | Notice | Preface | Product Description | Troubleshooting  
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 provi\
ded with the software.
Solving Audio Problems
Some common audio problems and solutions are listed in the following tab\
le.
Solving Audio Problems
Problem Probable 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
Problem Probable CauseSolution(s)
Computer wont turn on when battery 
pack is inserted and power cord is 
unplugged. Battery pack is discharged.
Connect the computer to an external 
power source and charge the battery 
pack.
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.
Computer is beeping and battery LED 
icon is blinking. Battery charge is low.
Immediately save any open file(s). Then 
do any one of the following:
l     Connect the computer to an 
external power source to charge 
the battery pack.
l     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. Volume is turned down too low.
Adjust the volume. 
Battery LED icon doesnt light and 
battery pack wont fast charge. Battery pack is already charged.
No action is necessary.
 Battery pack was exposed to 
temperature extremes.Allow time for the battery pack to return 
to room temperature.
 Battery pack is at end of its life.
Replace battery pack.
You have to set the date and time every 
time you turn on the computer. RTC battery is dead.
Replace the RTC battery. 
 
ProblemProbable Cause Solution(s)
Battery charge does not last as long 
as expected. Battery is being exposed to high 
temperatures or extremely cold 
temperatures. 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 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.Turn off or disconnect external devices 
when not using them.
Battery pack is warm to the touch 
after charging. Normal warming has occurred due to 
charging. No action is required.
Battery pack operating time is far 
less than the documented average 
operating time. Power management is turned off or 
disabled.
Enable power management in Computer 
Setup and in Windows Power Properties. 
 An external device or PC Card is draining 
the battery.Turn off or disconnect external devices 
when not using them.
 Battery pack has partially self-
discharged.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
Problem Probable CauseSolution(s)
CD drive cannot read a compact disc. Compact disc is upside down or is 
improperly inserted in the CD drive.Open the CD loading tray, lay the 
compact disc in it (label side up), then 
close the tray.
 CD is CD Plus or Pregap/Track 0 type.
Cannot read these type CDs in 24x. 
Remove the CD.
 
Solving Diskette and Diskette Drive Problems
Some common causes and solutions for diskette and diskette drive problem\
s are listed in the 
following table.
Solving Diskette and Diskette Drive Problems
Problem Probable CauseSolution(s)
Diskette drive cannot write to a 
diskette. Diskette is write-protected.
Disable the diskettes write-
protect feature or use a 
diskette that is not write-
protected.
  Computer is writing to 
the wrong drive.Check the drive letter in the 
path statement.
  Not enough space is left 
on the diskette.Use another diskette. 
  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:
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 
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.Put the bootable diskette in 
drive A. 
  Diskette Boot has incorrect 
setting in Computer Setup. 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 monochro\
me monitor by 
disconnecting the monitor from the computer. To do so, complete the foll\
owing 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 th\
e left and right sides of 
the display. Either of these displays indicates that the monitor is work\
ing properly.
Solving Display Problems
Problem Probable CauseSolution(s)
Screen is dim. Control for brightness or 
contrast (if applicable) is not 
set properly.Adjust the Brightness of the 
display by using Fn + F7 (¯ ) 
or 
Fn + F8 (­ ).
Adjust the Contrast of the 
display by using Fn + F5 (¯ ) 
or 
Fn + F6 (­ ).
  Computer screen is in direct 
light.Tilt display or move computer.
Screen is blank. Screen save was initiated by 
Power Management due to 
lack of user activity.Press any key or touch the 
Touch Pad.
  Display has overheated.If computer is in direct sunlight, 
move it and allow it to cool off.
Display is blank and the Suspend 
icon is flashing. System is in Suspend mode.
Press any key or touch the 
Touch Pad.
Internal display is blank and the 
screen on an external monitor 
displays information. Display function was switched 
to the external monitor.
Use Fn + F2 to switch between 
LCD or CRT.
 
Problem Probable 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 
have toggled back to 
internal display, which 
supports up to 
800 × 600.Restart the computer.
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.**
Improper backlight or display 
cable connections
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.
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.** Defective system board.
Replace the system board.
Backlight (brightness) cannot be adjusted with 
Fn + F7 (¯ ) or 
Fn + F8 (­ ).*** Improper display cable 
connections.
1. Reseat the display cable to the 
system board.
2. Replace the display assembly.
 Defective inverter board.
Replace the display assembly.
 Defective display cable.Replace the display assembly.
 Defective system board.Replace the system board.
Contrast cannot be adjusted with 
Fn + F5 (¯ ) or Fn + F6 (­ ). Improper display cable 
connections.1. Reseat the display cable to the 
system board.
2. Replace the display assembly.
 Defective inverter board.
Replace the display assembly.
 Defective display cable.Replace the display assembly.
 Defective system board.Replace the system board.
** This problem indicates that the backlight or its power circuitry has fai\
led. Since you cannot observe the POST result on 
the display panel when the backlight is not functioning, connect the uni\
t 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.
 
Problem Probable 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
Reseat the display cable to the following 
until the problem is solved:
1. System board
2. Display assembly
Defective display cable. Replace the display assembly.
Defective inverter board. Replace the display assembly.
Defective system board. Replace the system board.
Ghost bars extending from graphics on the 
display. Common characteristic of STN 
displays.1. Change the background colors.
2. Adjust the Contrast of the display by 
using Fn + F5 (¯ ) or Fn + F6 (­ ).
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 display panel.
Replace the display assembly.
 
NOTE:To perform a self-test on an external VGA color or monochrome monitor,\
 complete the following steps: The 
screen should be white. A narrow black border may also appear on the lef\
t 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 t\
he 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
Problem Probable CauseSolution(s)
Reading hard drive takes an unusually 
long time after restarting the computer. System entered Hibernation due to 
low battery condition and is now 
exiting from it.Give the system time to restore the 
previously saved data to its exact state 
before Hibernation.
Hard drive error occurs. Hard drive has bad sectors or has 
failed.Run Computer Checkup.
Hard drive does not work. Hard drive is not seated properly.Turn off and unplug the computer, 
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
Problem Probable 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.Ensure that all cables are 
properly and securely 
connected.
  Power switch of new external 
device is not turned on.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 ar\
e listed in the 
following table.
Solving Keyboard/Numeric Keypad Problems
Problem Probable 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 f\
ollowing table.
Solving Memory Problems
Problem Probable CauseSolution(s)
Memory count during Power-On Self-
Test (POST) is incorrect. Optional memory expansion 
card is installed incorrectly, 
is incompatible with 
the computer, or is defective.Ensure that the optional 
memory expansion card is 
installed correctly.
Out of Memory message is 
displayed on the screen or 
insufficient memory error occurs 
during operation. System ran out of 
memory for the application.
Check the application 
documentation for memory 
requirements.
Install additional memory.
Too many TSR (terminate-
and stay-resident) 
applications are running. Remove from memory any 
TSR applications that you do 
not need.
 
 Solving Minor Problems (continued) 
 
 
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Maintenance & Service Guide
Presario 1200 Series
Models: 1230 and 1232 
 | Home Page | Notice | Preface | Product Description | Troubleshooting  
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
Problem Probable 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.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.
  Speaker is turned off or 
volume is turned down.Press volume buttons to 
turn the speaker on, then 
increase the volume.
  PC Card drivers are not 
installed.Double click the Add New 
Hardware icon in the 
Control Panel 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 your Compaq 
authorized service provider 
for a list of PC Cards tested 
successfully in Compaq PC 
Card platforms.
PC Card modem, fax, or 
network card does not work. Card is not fully inserted into 
the slot or is not inserted 
properly.Ensure the card is inserted 
in the correct orientation.
  Telephone cord is not 
plugged in all the way.Check and secure telephone 
connection.
  Necessary drivers are not 
installed (turned on).Install drivers.
PC Card modem or fax card 
does not work. You are trying to access the 
card using the wrong COM 
port.See 
Specifications to verify 
COM port.
  The card conflicts with a 
serial device.See 
Specifications to verify 
address.
  The card is not supported.Use supported cards only.
Modem network PC Card 
does not work. Network driver is not installed or is 
not set up properly. Install driver.
  Telephone cord is not properly 
connected. Verify telephone 
connection.
Memory or storage card 
does not work. SRAM and flash memory cards 
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. Install 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 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
Problem Probable CauseSolution(s)
Computer wont turn on and 
battery pack is not inserted. Computer is not connected to 
a power source.
Power cords to the external 
power source are unplugged.Insert battery or connect 
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.
Computer turned off while it was 
left unattended and the power icon 
is off. 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 
after a preset timeout. Turn on the computer.
 
Solving Printer Problems
If you experience problems printing, run a printer self-test. Refer to t\
he 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
Problem Probable CauseSolution(s)
Printer will not turn on. The signal cable may not be 
connected properly, or the 
printer is unplugged.Ensure that the signal 
cable is properly 
connected and that the 
power cord is connected to 
the electrical outlet.
Printer will not print. Printer is not turned on or is 
off line.Turn the printer on and set 
it to on line.
The device drivers for your 
application are not installed. Refer to the printer 
documentation to install 
the correct printer driver.
Printer that is set up for a 
network is not connected to 
the network. Connect the printer to the 
network.
Printer cable is too long, 
unshielded, or defective. Replace the cable.
Paper tray is empty. Fill the paper tray with 
paper and set the printer 
to online.
Printer prints garbled information. Correct printer drivers 
are not installed.Refer to the printer 
documentation to install 
the correct printer driver.
Cable is not 
connected properly. Ensure that the printer 
signal cable is properly 
connected to the 
computer.
Cable is defective. Replace the printer cable 
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
Problem CauseSolution(s)
Touch Pad or mouse does not work. 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.Install the Touch 
Pad/mouse driver in 
Windows.
External mouse does not work. Mouse is not securely 
connected or is connected to 
an incorrect external 
connector.Ensure that the mouse is 
securely connected to the 
appropriate external 
connector.
Touch Pad or mouse does not work 
even though the device is enabled 
in Windows. 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 device driver each 
time computer is turned 
on or restarted.
  Cable not properly seated in 
Touch Pad board.Reseat cable.
  Defective Touch Pad board.Replace Touch Pad board.
  Defective system board.Replace system board.
  Device driver is not correctly 
installed in Windows.Install the appropriate 
device driver in Windows.
Cursor skips or moves abnormally 
when using the Touch Pad. The Touch Pad needs to be 
cleaned.Clean the Touch Pad with 
a cloth dampened with 
alcohol or an ammonia-
based glass cleaner. Wipe 
up liquid with a dry cloth.
 
 
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							United States     January 3, 2003 
 
Maintenance & Service Guide
Presario 1200 Series
Models: 1230 and 1232 
 | Home Page | Notice | Preface | Product Description | Troubleshooting  
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications 
Pin Assignments | Battery Pack Operations
System Unit 
System Unit
Boards
Display 
Assembly
Mass Storage 
Devices
Miscellaneous 
Cable Kit
Cables
Miscellaneous 
Hardware and 
Plastics Kit
Miscellaneous 
Parts
Documentation 
and Software
Description Spare 
Part 
Number
1. 
Keyboard
2. Palmrest Cover 330965-
001
3.  Upper CPU Cover w/Cable and Power Switch 
(Top Plastics) 330963-
001
4.  Speaker Assembly w/Cable  330960-
001
5.  CPU Base Assembly Enclosure,(Bottom 
Plastics) 330948-
001
6.  Battery Pack, E.S. NiMH 330935-
001
 
 
privacy statement
legal notices 
						

							United States     January 3, 2003 
 
Maintenance & Service Guide
Presario 1200 Series
Models: 1230 and 1232 
 | Home Page | Notice | Preface | Product Description | Troubleshooting  
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications 
Pin Assignments | Battery Pack Operations
Boards
System Unit
Boards
Display 
Assembly
Mass Storage 
Devices
Miscellaneous 
Cable Kit
Cables
Miscellaneous 
Hardware and 
Plastics Kit
Miscellaneous 
Parts
Documentation 
and Software
Description Spare 
Part 
Number
1.Heatspreader 330961-
001
2. Modem, M+ 
56.0 Kbps 
Data/Fax 138610-
001
2. Modem, K-
56.0 Kbps 
Data/Fax 138657-
001
3. Fan w/Cable 293747-
001
4. Voltage 
Converter 330962-
001
5.Processor, 
233 MGX 330937-
001
6. System 
Board, 
w/processor, 
w/32-MB 
memory  330938-
001
 
 
privacy statement
legal notices 
						

							United States     January 3, 2003 
 
Maintenance & Service Guide
Presario 1200 Series
Models: 1230 and 1232 
 | Home Page | Notice | Preface | Product Description | Troubleshooting  
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications 
Pin Assignments | Battery Pack Operations
System Unit
Boards
Display 
Assembly
Mass Storage 
Devices
Miscellaneous 
Cable Kit
Cables
Miscellaneous 
Hardware and 
Plastics Kit
Miscellaneous 
Parts
Documentation 
and Software
Description Spare 
Part 
Number
Display 
Assembly 
w/Cable, 
12.1 inch 
HPA 330939-
001
 
 
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