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The display flickers when I launch or close a program.
• The signal may not be stable. Check the cable connection or try with another video cable.
• The panel backlight may be unstable. Contact the BenQ authorized service partner for
replacement.
Audio
The image is displayed but no sound is heard.
Possible causes
Your graphic card driver is not
installed or updated.
The audio cable is loose.
Not external speakers are
connected.
The audio output device is not
consistent with the display setting.
Either the display's or PC's
Speaker has been muted.
The main board could be
damaged.
(If the signal source is HDMI/DP)
The Speakers in your OS is not
set properly.
Your display's audio input is not
set to DisplayPort or HDMI.
Remote control
The remote control does not work.
Possible causes
The remote control does not
work.
The battery drained out.
The remote control is damaged.
The IR receiver could be damaged.
It is out of the IR remote control
range.
Update the driver through Windows Update (for
Windows Operating Systems) or the graphic card's
manufacturer.
Power off the display and re-connect the audio cable.
Power on the display again.
Connect external speakers to the display and adjust the
volume appropriately.
Make sure the setting in Speaker on your display is the
same with the audio output device.
Disable mute by pressing the MUTE button on the remote
control.
Contact the BenQ authorized service partner for
replacement.
Set DisplayPort or HDMI as the default speaker in your
operating system and launch the media player again.
Set the Audio Source of your display to DisplayPort or
HDMI.
Refer to
Notes on using the remote control on page
Replace with a new battery.
Try with a new remote control.
Check if the LED indicator of the IR receiver lights red or
does not light up. If so, contact the BenQ authorized
service partner for replacement.
Check the specifications and adjust the distance between
the remote control and the display.
Possible solutions
Possible solutions
8.
Troubleshooting
71
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Table of Contents
Troubleshooting
