Toshiba NB505 User Manual

User’s Manual

6-14

NB500/NB505/NB520/NB525/NB550D/NB555D Series

No display

Try adjusting the contrast and brightness controls 

on the external monitor.
Press the FN + F5 hot key in order to change the 

display priority and ensure that it is not set for the 

internal display only.
Check to see if the external monitor is connected.
When the external monitor is set as the primary 

display device in extended desktop mode, it will not 

display when the computer wakes up from Sleep 

Mode if the external monitor has been disconnected 

while in Sleep Mode.
To keep this from happening, do not disconnect the 

external monitor while the computer is in Sleep or 

Hibernation Mode.
Remember to turn off the computer before 

disconnecting the external monitor.
When the display panel and an external monitor are 

set to clone mode and they are turned off by the 

timer, the display panel or the external monitor may 

not display when turned on again.
If this occurs, press FN + F5 to re-set the display 

panel and external monitor to clone mode.

Display error occurs Check that the cable connecting the external 

monitor to the computer is firmly attached.
If you are still unable to resolve the problem, 

contact your reseller, dealer or service provider.

Cannot access LAN  Check for a firm cable connection between the LAN 

jack and the LAN hub.

Wake-up on LAN 

does not work

Make sure the AC adaptor is connected. The Wake-

up on LAN function consumes power even when 

the system is off.
If problems persist, consult your LAN administrator.