Troubleshooting
Maintenance and Service Guide 2–15
Flowchart 2.5—No Power, Part 4
Y
N
Continued from
“Flowchart 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) in the
order given. Check notebook operation after each
of the following two replacement 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.
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