HP Nc4000 Maintenance and Service Guide: HP Compaq Notebook nc4000 Series - Page 39
Flowchart 2.5—No Power, Part 4
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Flowchart 2.5-No Power, Part 4 Continued from Section 2.4, No Power, Part 3. Troubleshooting Open notebook. Y Loose or damaged parts? N Reseat loose components and boards and replace damaged items. Close notebook and retest. N Power on? Y Done Replace the following items (if applicable). Check notebook operation after each replacement: 1. Internal DC-DC converter* 2. Internal AC adapter 3. Processor board* 4. System board* *NOTE: Replace these items as a set to prevent shorting out among components. Maintenance and Service Guide 2-15
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Troubleshooting
Maintenance and Service Guide
2–15
Flowchart 2.5—No Power, Part 4
Y
N
Continued from
Section 2.4,
No Power, Part 3.
Reseat loose
components and
boards and
replace damaged
items.
Open
notebook.
Loose or
damaged
parts?
Y
Close
notebook and
retest.
Power on?
Done
N
Replace the following items (if applicable).
Check notebook operation after each
replacement:
1. Internal DC-DC converter*
2. Internal AC adapter
3. Processor board*
4. System board*
*
NOTE:
Replace these items as a set to
prevent shorting out among components.