Troubleshooting
Maintenance and Service Guide
2–7
Flowchart 2.1—Initial Troubleshooting
Connecting
to network
or modem?
Begin
troubleshooting.
Is there
power?
Is the OS
loading?
Is there video?
(no boot)
Is there
sound?
Beeps,
LEDs, or error
messages?
Keyboard/
pointing
device
working?
Go to
“Flowchart
2.17—Nonfunc-
tioning Device.”
Go to
“Flowchart
2.2—No Power,
Part 1.”
Go to
“Flowchart
2.6—No Video,
Part 1.”
All drives
working?
Y
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
End
N
N
N
Go to
“Flowchart
2.9—No Operating
System (OS)
Loading.”
Go to
“Flowchart
2.15—No Audio,
Part 1.”
Go to
“Flowchart
2.18—Nonfunc-
tioning Keyboard”
or
“Flowchart
2.19—Nonfunc-
tioning Pointing
Device.”
Check
LED board,
speaker
connections.
Go to
“Flowchart
2.20—No
Network/Modem
Connection.”
Summary of Contents for Compaq tc4400
Page 58: ...3 4 Maintenance and Service Guide Illustrated Parts Catalog Computer Major Components ...
Page 61: ...Illustrated Parts Catalog Maintenance and Service Guide 3 7 Computer Major Components ...
Page 63: ...Illustrated Parts Catalog Maintenance and Service Guide 3 9 Computer Major Components ...
