No Power, Part 3; Flowchart 2.5—No Power, Part 4 - HP Compaq NC4010 Maintenance And Service Manual

Troubleshooting
Flowchart 2.5—No Power, Part 4
Continued from
Section 2.4,

No Power, Part 3.

Open
notebook.
Loose or
damaged
parts?
N
Close
notebook and
retest.
Power on?
Y
Done
2–16
Y
Reseat loose
components and
boards and
replace damaged
items.
N
Replace the following items (if applicable)
in the order given. Check notebook operation
after each of the two following replacements
steps
1. Internal DC-DC converter, processor,
and system board*
2. Internal AC adapter
*NOTE: Replace these items as a set to
prevent shorting out among components.
Maintenance and Service Guide