HP Nc4000 HP Compaq nc4010 Notebook PC - Maintenance and Service Guide - Page 38

Flowchart 2.1-Initial Troubleshooting, Troubleshooting, Maintenance and Service Guide

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Troubleshooting Flowchart 2.1-Initial Troubleshooting Begin troubleshooting. N Is there power? Go to "Flowchart 2.2-No Power, Part 1" Y N Beeps, LEDs, or error messages? Y N Check LED board, speaker connections. N All drives working? Y Go to "Flowchart 2.17-Nonfunctioning Device" Is there video? (no boot) Y N Is the OS loading? Y N Go to "Flowchart 2.6-No Video, Part 1" Go to "Flowchart 2.9-No Operating System (OS) Loading" N Keyboard/ pointing device working? Y N Connecting to network or modem? Y Go to "Flowchart 2.18-Nonfunctioning Keyboard" or "Flowchart 2.19-Nonfunctioning Pointing Device" Go to "Flowchart 2.20-No Network/Modem Connection" Is there sound? Go to "Flowchart 2.15-No Audio, Part 1" End Y Maintenance and Service Guide 2-11

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Troubleshooting
Maintenance and Service Guide
2–11
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”