BenQ Joybook S33 Series User Manual page 69

• The screen's brightness may have been set too low. Use
the <Fn> + <F4> hotkey combination to increase the
brightness.
• The display may have been switched to use an
connected external display device. Use the <Fn> +
<F3> hotkey combination to switch the display back to
the Joybook or to use simultaneous display.
When I connect the Joybook to an external monitor, the display
is abnormal.
The instructions below will guide you through the
troubleshooting process.
• Use the <Fn> + <F3> function key combination to make
external video signal enabled.
• Refer to the user manual that came with the external monitor
to check the settings.
• Connect the VGA cable to the Joybook and reboot the system.
If there is no display on the external monitor after system
reboot, connect the Joybook to a standard VGA monitor, and
wait until you can see things properly on that VGA monitor.
Then, connect the target display to the Joybook again.
How can I judge if my LCD panel is out of order and what
should I do if this happens?
If your Joybook cannot display images at the default resolution,
please visit the BenQ web site to download and update the latest
Joybook display drivers.
Contact your BenQ dealer if you encounter the following
situations:
• The screen flickers when the system starts up normally.
• Fonts displayed on the screen are unclear and strange codes
appear.
• There is no display when the hard disk is running normally.
• Colors on the screen are strange and turn into white.
• Vertical or horizontal lines appear on the screen.
• When playing a media file using Windows Media Player, the
frame speed is abnormal.
• The sound changes while the screen remains the same when
playing games.
FAQ and troubleshooting 65