HP Compaq nx9600 Maintenance And Service Manual page 31

Flowchart 2.1—Initial Troubleshooting
Begin
troubleshooting.
Is there
power?
Y
Beeps,
LEDs, or error
messages?
Y
Is there video?
(no boot)
Y
Is the OS
loading?
Y
Is there
sound?
Y
Maintenance and Service Guide
N
Go to
"Flowchart
2.2—No Power,
Part 1."
N
Check
LED board,
speaker
connections.
N
Go to
"Flowchart
2.6—No Video,
Part 1."
N
Go to
"Flowchart
2.9—No Operating
System (OS)
Loading."
N
Go to
"Flowchart
2.15—No Audio,
Part 1."
N
All drives
working?
Y
N
Keyboard/
pointing device
working?
Y
N
Connecting
to network
or modem?
Y
End
Troubleshooting
Go to
"Flowchart
2.17—Nonfunctioning
Device."
Go to
"Flowchart
2.18—Nonfunctioning
or
Keyboard"
"Flowchart
2.19—Nonfunctioning
Pointing Device."
Go to
"Flowchart
2.20—No
Network/Modem
2–7