HP Pavilion zx5000 Maintenance And Service Manual page 50

Troubleshooting
Flowchart 2.5—No Power, Part 4
Continued from
"Flowchart 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 2 following 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.
Maintenance and Service Guide