Compaq 279362-002 manual Flowchart 2.5 No Power, Part

Troubleshooting

Flowchart 2.5 - No Power, Part 4

Continued from

Flowchart 2.4,

No Power, Part 3.

Open

computer.

Y

Loose or damaged parts?

N

Close

computer and

retest.

Reseat loose

components and

boards and

replace

damaged items.

Power on?

Y

Done

N

Replace the following items (if applicable). Check computer operation after each

replacement:

1.Internal DC-DC converter*

2.Internal AC adapter

3.Processor board*

4.System board*

*Replace these items as a set to prevent shorting out among components.

Maintenance and Service Guide 2–15