HP omnibook xt1000 Service Manual
3-4
Troubleshooting and Diagnostics
HP Pavilion zt1100/xz100 Omnibook xt1000
Troubleshooting the Problem
Record pertinent information about the notebook:
• Model and serial number.
• Operating system and version.
• Software version (hidden file c:\version.inf).
• BIOS version.
• Accessories and peripherals used.
• Operating system and version.
• Software version (hidden file c:\version.inf).
• BIOS version.
• Accessories and peripherals used.
Analyze the problem:
•
Observe Symptoms.
Using the customer’s information, try to duplicate the problem. Determine
how the problem differs from proper behavior. Also, note the functions that do work properly.
•
Separate Problems.
If there is more than one symptom, separate them into distinct problems.
•
Consider Causes.
Keep in mind possible causes for each problem. Use the diagnostic tools and
troubleshooting suggestions to help find the possible causes.
The e-Diagtools diagnostic program tests most of the notebook’s components using automatic
and interactive tests, and will be your primary troubleshooting tool. Other tools include the
power-on self-test, the BIOS configuration utility, and the Sycard PCCtest. Table 3-1 on
page 3-5 shows how you can use these tools to isolate the cause of the notebook’s problem.
and interactive tests, and will be your primary troubleshooting tool. Other tools include the
power-on self-test, the BIOS configuration utility, and the Sycard PCCtest. Table 3-1 on
page 3-5 shows how you can use these tools to isolate the cause of the notebook’s problem.
The troubleshooting suggestions on page 3-5 include general suggestions for repairing units
that show specific failure symptoms.
that show specific failure symptoms.
Swapping modules that may be defective with others known to be good is generally an ideal way to
find the module responsible for the problem. A failure symptom is rarely caused by more than one
module, so you will not usually need to replace more than one to correct a particular failure.
find the module responsible for the problem. A failure symptom is rarely caused by more than one
module, so you will not usually need to replace more than one to correct a particular failure.
After you replace a module, the notebook will normally be in a confused state and lock up when you
apply power. If this happens, press the reset switch: this resets the notebook, so that you can restart it
in a known state.
apply power. If this happens, press the reset switch: this resets the notebook, so that you can restart it
in a known state.
Verifying the Repair
Before returning the repaired notebook to the customer, verify the repair by running the following
tests:
tests:
• e-
Diagtools Basic Diagnostic Test.
Run the basic test of the e-Diagtools diagnostic program
(page 3-22).
–and–
•
Function Tests.
Run tests that check the repaired function, such as in the e-Diagtools diagnostic
program (page 3-22).
–and–
•
Failed Tests.
Run any other tests that failed during troubleshooting.