HP omnibook xt1000 Service Manual

3-12 

Troubleshooting and Diagnostics 

HP Pavilion zt1100/xz100 Omnibook xt1000 

“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. 
Make sure CD/DVD drive is 
installed properly. 

CD/DVD drive. 
Motherboard. 

 

DVD doesn’t play 
with two displays 

Before starting DVD player, 
press Fn+F5 to switch to one 
display. You cannot switch 
displays once DVD player is 
started. 
If using both displays, DVD 
image will not appear on any 
display set up as 
“secondary”. Open Display in 
Control Panel, click 
Advanced on Settings tab, 
and change settings. 

 

 

Problems with 
display resolution or 
color when playing 
DVDs 

Set resolution or color depth 
before starting DVD player. 
You cannot change these 
once DVD player is started. 
Some combinations of color 
depth and resolution not 
supported in DVD playback. 
If needed, reduce color depth 
or display resolution. 

 

 

No DVD or CD-RW 
software on 
notebook 

CD/DVD drive module may 
not have been properly 
installed first time notebook 
was booted. Make sure drive 
is correctly installed, and use 
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. 

 

 

 

 

 

Some or all keys do 
not work properly. 

Try reinserting ribbon cable 
in connector on motherboard. 

Keyboard. 
Motherboard. 

 

External keyboard 
does not work. 

Check connections. 

External keyboard. 
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.