How to unlock the control panel buttons on a BenQ Monitor?
If the control panel buttons on your BenQ Monitor do not work, check if you have locked the control panel buttons. If so, unlock them and try again.
Why is there an image but no sound on my BenQ CS6501 Monitor?
If your BenQ Monitor has an image but no sound, check if the mute button is pressed. If so, unmute it. Also, try adjusting the volume using the VOL+/VOL- buttons and ensure the audio line is correctly connected.
How to remove vertical lines or streaks on my BenQ Monitor's background?
If the background of your BenQ Monitor has vertical lines or streaks, try selecting automatic correction in the menu. If that doesn't work, adjust the clock and phase position in the menu.
Why does my BenQ CS6501 have no picture and no sound?
If your BenQ Monitor has no picture and no sound, first check if the machine is turned on. Then, ensure the signal wire is properly plugged in and that the INPUT setting corresponds to it. If you are in internal computer mode, verify that the internal computer is started.
Why does my BenQ Monitor have horizontal or vertical stripes or image dithering?
If your BenQ Monitor displays horizontal or vertical stripes or image dithering, check whether the signal wire is well connected. Also, check whether other electronic equipment or power tools are placed around the machine, as they may cause interference.
Why does only one speaker have sound on my BenQ CS6501?
If only one speaker on your BenQ Monitor has sound, adjust the sound balance in the menu. Also, check whether the computer sound control panel only sets up one sound channel and ensure the audio line is connected correctly.
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