Compaq NC4000 manual Flowchart 2.5-No Power, Part

Troubleshooting

Flowchart 2.5—No Power, Part 4

Continued from

Section 2.4,

No Power, Part 3.

Open

notebook.

		Y
	Loose or		Reseat loose
			components and
	damaged		boards and
	parts?		replace damaged
N			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