
3-2
Troubleshooting Flowcharts for Portable Computers
1. Initial Troubleshooting
Beeps,
LEDs, or error
messa
es?
Is there
sound?
Is the O/S
loadin
?
Is there video?
(no boot)
Is there
power?
Be
in
Troubleshootin
Go to pa
e 3-16,
No Audio
Go to Pa
e 3-10,
No O/S Loadin
Go to Pa
e 3-7,
No Video
Go to Pa
e B-1,
Error Messa
es
Go to Pa
e 3-3,
No Power
Y
Y
N
N
N
Y
Y
N
N
End
Y
Connectin
to network
or modem?
Keyboard/
Mouse
workin
?
All drives
workin
?
Go to pa
e 3-20,
Network or
Modem
Connection
Go to Pa
e 3-19,
Keyboard/Mouse
Go to Pa
e 3-18,
Non-Functionin
Device
N
Y
Y
N
N
Y
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