Acer Extensa 500 用户手册

If pressing a key does not turn the display back on, two 
things might be the cause:

❑

The contrast and/or brightness level might be too low.  
Press Fn-

↑

 and Fn-

↓

 to adjust the contrast level (only for 

models with HPA LCDs).  Press Fn-

←

 and Fn-

→

 to 

adjust the brightness level.

❑

The display device might be set to an external monitor.  
Press the display toggle hot key Fn-F6 to toggle the 
display back to the computer.

Make sure the resolution is set to 800x600.  Right-click on 
your Windows 98 desktop and select Properties to bring up 
the Display Properties dialog box.  Then click on the 
Settings tab to make sure the resolution is set to the 
appropriate resolution.  Resolutions lower than the 
specified resolution is not full-screen on the computer or on 
an external monitor.

Check the following:

❑

The volume may be muted.  In Windows 98, look at the 
volume control icon on the taskbar.  If it is crossed-out, 
click on the icon and deselect the Mute option.

❑

The speakers may be turned off.  Press Fn-F8 to turn 
the speakers on (this hot key also turns the speakers 
off).

❑

The volume level may be too low.  In Windows 98, look at 
the volume control icon on the taskbar.  Click on the 
icon and adjust the level.  You can also use the volume 
control knob on the front panel of the computer to 
adjust the volume.

500-e.book : 500-6e.fm  Page 97  Monday, August 17, 1998  9:36 PM