Maintenance and Service Guide

3-14 Troubleshooting and Diagnostics Service Manual
Symptom Call Center: Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Region Code error DVDs contain embedded
regional codes that prevent
them from playing outside
region in which they are sold.
This error occurs when trying
to play DVD intended for
different region.
NOTE: Most DVD drives allow
region code to be changed only
a limited number of times
(usually no more than 4).
When this limit is reached, last
change is hard-coded on DVD
drive, and is permanent. Refer
to DVD player software help for
details.
HP warranty does
not cover expense of
correcting this
situation.
System Error: Unable
to read drive”
message
Make sure disk is clean,
undamaged, and inserted
correctly. Clean with soft cloth
or replace as needed.
Wait 5 to 10 seconds
after closing tray before
pressing Play.
Restart notebook.
CD/DVD drive
Motherboard
Make sure CD/DVD
drive is installed
properly.
No DVD or CD-RW
software on notebook
If software was removed, use
the Recovery CDs to reinstall
factory software.
All DVD play is erratic Some DVDs include software
called “PC Friendly”. This
software can cause errors
or erratic play. If needed,
uninstall PC Friendly and
restart notebook.
Keyboard
Some or all keys do
not work properly
Check settings in Control
Panel.
Keyboard
Motherboard
Try reinserting ribbon
cable in connector on
motherboard.
Embedded
numeric keypad
does not work
Press Fn+F8 to activate
numeric keypad, and Lock key
to turn on number lock.
Avoid touching touch pad while
booting or resuming.
KeyboarD
Motherboard
PS/2 keyboard
and mouse with Y-
adapter do not work
Check devices separately. Y-adapter
PS/2 device
Motherboard