HP Pavilion zv5000 Expansion Base - Maintenance and Service Guide - Page 15

Troubleshooting, Before Replacing Parts - drivers

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2 Troubleshooting Å WARNING: Only authorized technicians trained by HP should repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module level repair. Because of the complexity of the individual boards and subassemblies, do not attempt to make repairs at the component level or modifications to any printed wiring board. Improper repairs can create a safety hazard. Any indication of component replacement or printed wiring board modification may void any warranty or exchange allowances. This chapter contains troubleshooting information for the HP Notebook Expansion Base. Carefully match the symptoms of the malfunction against the problem description in the Troubleshooting tables to avoid a misdiagnosis. Refer to Chapter 5 for all removal and replacement procedures. Follow these guidelines when troubleshooting: ■ Complete the recommended actions in the order in which they are given. ■ When the problem is resolved, do not complete the remaining troubleshooting steps. Before Replacing Parts When troubleshooting a problem, check the following list for possible solutions before replacing parts: ■ Verify that cables are connected properly to the suspected defective part. ■ Verify that all required device drivers are installed on the notebook. Maintenance and Service Guide 2-1

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Maintenance and Service Guide
2–1
2
Troubleshooting
Å
WARNING:
Only authorized technicians trained by HP should repair
this equipment. All troubleshooting and repair procedures are detailed
to allow only subassembly/module level repair. Because of the
complexity of the individual boards and subassemblies, do not attempt
to make repairs at the component level or modifications to any printed
wiring board. Improper repairs can create a safety hazard. Any
indication of component replacement or printed wiring board
modification may void any warranty or exchange allowances.
This chapter contains troubleshooting information for the
HP Notebook Expansion Base. Carefully match the symptoms of
the malfunction against the problem description in the
Troubleshooting tables to avoid a misdiagnosis. Refer to
Chapter 5
for all removal and replacement procedures.
Follow these guidelines when troubleshooting:
■
Complete the recommended actions in the order in which
they are given.
■
When the problem is resolved, do not complete the remaining
troubleshooting steps.
Before Replacing Parts
When troubleshooting a problem, check the following list for
possible solutions before replacing parts:
■
Verify that cables are connected properly to the suspected
defective part.
■
Verify that all required device drivers are installed on the
notebook.