HP Omnibook 500 Service Manual

HP Omnibook 500 Troubleshooting and Diagnostics 3-19
Diagnostic Tools
This section describes the following diagnostic tools you can use for troubleshooting and repairing the
Omnibook:
 
• e-DiagTools program (below).
 
• Power-on self-test (page 3-26).
 
• Sycard PCCtest 450 PC Card (page 3-29).
 
• Desktop Management Interface (page 3-30).
 
• BIOS Setup utility (page 3-31).
e-DiagTools
The e-DiagTools hardware diagnostic program provides two levels of testing:
 
• Basic user-level hardware test.
 
•...

3-20 Troubleshooting and Diagnostics HP Omnibook 500
Running e-DiagTools
 1.
 Restart the computer.
 2.
 When the HP logo appears, press F10 to start the diagnostic test.
 3.
 When the menu appears, press ENTER to run e-DiagTools.
 4.
 The first time you run the program, you are prompted to select the language for the program.
 5.
 Press F2 to proceed with the basic tests.
 You can also proceed directly to the advanced tests from this point by pressing CTRL-F9
(in which case skip to step 10, below).
 6....

HP Omnibook 500 Troubleshooting and Diagnostics 3-21
Note that the serial and parallel port tests are more thorough if you connect a loop-back connector to
the port before running the test for that port. See the wiring diagrams below.
141
25 13
6
19 5
Figure 3-3. Serial and Parallel Loopback Connectors
These connections
are not used.
Diodes are 1N4004
or equivalent
(I
F=1A, VF=1V@1A,
V
R=30-400V) 

3-22 Troubleshooting and Diagnostics HP Omnibook 500
Interpreting the Results
The following table lists test groups, error codes, and suggestions for follow-up actions. Consider
these suggestions in combination with other troubleshooting information.
 Table 3-3. e-DiagTools Error Codes
CodeSuggestions
Note: If the BIOS IC appears to be corrupted, you can try
to repair it (see page 2-31).
System Tests
0001h –
0040hReplace the motherboard.
0041h Run BIOS Setup and check IRQ assignments
for all devices....

HP Omnibook 500 Troubleshooting and Diagnostics 3-23
CodeSuggestions
02F3h –
02F5hRun SCANDISK or an equivalent. Use a
Recovery CD to restore the original factory
configuration.
02FFh Check the hard disk installation. Replace the
hard drive/LED flex cable. Replace the hard
disk. Replace the motherboard.
9602h –
9607h(See the Hard Disk Tests at the end of the
table.)
Floppy Disk Tests
0301h –
0304hCheck the USB cable (if any). Replace the
floppy drive. Replace the motherboard.
0305h Make sure the floppy...

3-24 Troubleshooting and Diagnostics HP Omnibook 500
CodeSuggestions
2150h Replace the display assembly. Replace the
motherboard. If this error also occurs with
external monitor, replace the motherboard.
9016h Reset the computer. Reprogram the BIOS IC.
Replace the motherboard.
9017h See chapter 5 for cosmetic guidelines. If
warranted, replace the display assembly.
CD-ROM Tests
0A00h Insert a CD in the drive module.
0A01h Repeat the test. Replace the CD-ROM module.
0A02h No repair. (Automatic close not...

HP Omnibook 500 Troubleshooting and Diagnostics 3-25
CodeSuggestions
9088h Replace the expansion base.
Hard Disk Tests
9602hFailure may occur soon. Back up data and
replace the hard disk.
9603hPerform the IDE disk test (in the Advanced
section). If other errors occur, follow the
instructions for those errors.
9604h Back up data if possible. Use a Recovery CD
to restore the original factory configuration,
then reinstall applications.
9605h –
9606hRun the full HDD test. Use a Recovery CD to
restore the...

3-26 Troubleshooting and Diagnostics HP Omnibook 500
Power-On Self-Test
  Note
 
If Quiet Boot is enabled in BIOS Setup (the default setting), press ESC during boot to see POST
messages.
The POST (Power-On Self-Test) is a series of initialization routines and diagnostic tests that the
system BIOS runs when the computer boots. The system BIOS will not boot the operating system if
the system memory, CPU, DMA, or interrupt controller fails the POST diagnostic tests. POST
progress is indicated by a sequence...

HP Omnibook 500 Troubleshooting and Diagnostics 3-27
 Table 3-5. POST Messages
MessageDescription
0200 Failure Fixed Disk
The hard disk is not working or is not configured properly. Make sure the disk is installed
properly. Use BIOS Setup to make sure the hard disk type is correctly identified.
0210 Stuck key
A key is stuck on the keyboard.
0211 Keyboard error
The keyboard is not working.
0212 Keyboard Controller Failed
The keyboard controller failed its test. The motherboard may need to be replaced...

3-28 Troubleshooting and Diagnostics HP Omnibook 500
MessageDescription
02F7: Fail-Safe Timer NMI Failed
ServerBIOS2 test error: Fail-Safe Timer takes too long.
device
 Address Conflict
Address conflict for the specified device.
Allocation Error for: device
Run the ISA or EISA Configuration Utility to resolve a resource conflict for the device.
CD ROM Drive
CD-ROM Drive identified.
Entering SETUP ...
Starting the BIOS Setup program
Failing Bits: nnnn
The hex number nnnn is a map of the bits at the RAM...