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LG 31HN713DB Owner's Manual page 37

Medical monitor

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Some features are disabled.
Are some functions not available when you press the Menu button?
- The OSD is locked. Disable [OSD Lock] in [General].
No sound from the headphone port.
Are images displayed without sound?
- Make sure that the headphone port connections are made properly.
- Try increasing the volume with the joystick.
- Set the audio output of the PC to the monitor you are using. (The settings may differ depending on the
operating system (OS) you use.)
4K resolution is unavailable.
Did you check the cable connection?
- Check if the cable is properly connected.
- It is recommended to use the accessories supplied with the product.
Is the resolution and refresh rate set properly?
- Set the proper resolution and refresh rate in the PC screen resolution settings or the player's option
menu.
Does the connected external device support 4K resolution?
- It is available only on external devices that support 4K resolution.
- Check if the connected external device supports 4K resolution.
37

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