HP Compaq NX4820 Maintenance And Service Manual page 65

Flowchart 2.15—No Audio, Part 1
No audio.
Computer in
docking device
(if applicable)?
N
Go to
"Flowchart
2.16—No Audio,
Part 2."
Maintenance and Service Guide
Turn up audio
internally or
externally.
Y
Undock
Go to
"Flowchart
2.17—Nonfunctioning
Device."
N
Internal
Y
Replace the following docking device compo-
nents one at a time, as applicable. Check
audio status after each change.
1. Reseat docking device audio cable.
2. Replace audio cable.
3. Replace speaker.
4. Replace docking device audio board.
5. Replace backplane board.
6. Replace I/O board.
N
Y
Audio?
N
audio?
2.16—No Audio,
Y
Audio?
Troubleshooting
Done
Go to
"Flowchart
Part 2."
Done
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