Troubleshooting

Flowchart 2.5 - No Power, Part 4

Continued from

Flowchart 2.4,

No Power, Part 3.

Open

computer.

 

 

Y

 

 

 

Reseat loose

 

 

 

 

 

Loose or

 

 

components and

 

damaged

 

 

boards and

 

parts?

 

 

replace

N

 

 

damaged items.

 

 

 

 

 

 

 

 

 

Close

 

 

 

 

computer and

 

 

 

 

retest.

 

 

 

 

 

 

 

 

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