BenQ Joybook S73 series User Manual page 40

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 set external video
signal enabled.
• Refer to the user's manual of the external monitor to check the settings.
• Connect the cable to the Joybook and reboot the system. If there is no
display on the external monitor after system reboot, connect Joybook to
a standard VGA monitor and wait until you can see things properly on
that VGA monitor. Then connect the target display to Joybook again.
• Check if you have connected devices to both the S-Video and VGA
output on the Joybook. If yes, disconnect the device connected to the S-
Video output on the Joybook to enable normal signal output from the
VGA output. In general, if you have connected devices to both S-Video
and VGA output on the Joybook, the S-Video output will be selected in
first priority.
How can I judge if my LCD panel is out of order and what should I do if
it happens?
If your Joybook cannot display images at the default resolution, please
visit the BenQ website to download and update the latest Joybook display
drivers.
Contact your BenQ dealer if either of the following phenomena occurs:
• The screen shakes when the system started up normally.
• Fonts displayed on the screen are unclear and strange codes appear.
• There is no display when the hard drive is running normally.
• Colors on the screen are strange and turn into white.
• Vertical or horizontal lines appear on the screen.
• When playing back a media file using Windows Media Player, the frame
speed is abnormal.
• The sound changes while the screen remains the same when playing
games.
36 FAQ and Troubleshooting