Troubleshooting

Flowchart 2.5—No Power, Part 4

Continued from

“Flowchart

2.4—No Power,

Part 3.”

Open

computer.

 

 

Y

 

 

Loose or

Reseat loose

 

 

 

 

 

 

components and

 

damaged

 

 

boards and

 

parts?

 

 

replace damaged

N

 

 

items.

 

 

 

 

 

 

 

 

 

 

 

 

Close

 

 

 

 

computer and

 

 

 

 

retest.

 

 

 

 

 

 

 

 

N

Power on?

Y

Done

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*

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

Maintenance and Service Guide

2–15