To Next PageTo Next PageWhy control panel keys do not work on ViewSonic VA3209U-4K?
If the control panel keys on your ViewSonic Monitor do not work, make sure you are pressing only one key at a time. If the problem persists, try restarting the computer.
Why some menus aren’t selectable in the OSD on ViewSonic VA3209U-4K Monitor?
If some menus aren’t selectable in the OSD of your ViewSonic Monitor, try adjusting the ViewMode or the input source. If that doesn't work, reset the monitor to factory settings.
How to fix no audio output on ViewSonic Monitor?
If there is no audio output from your ViewSonic Monitor, ensure the mini stereo jack is connected if you are using headphones. Also, make sure the volume is not muted and is not set to 0. Finally, check the Audio Input setting.
Why USB devices connected to ViewSonic VA3209U-4K do not work?
If USB devices connected to your ViewSonic Monitor do not work, ensure the USB cable is connected properly. Try changing to another USB port, if applicable. Some USB devices require a higher electric current, so connect the device directly to the computer.
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