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Problem
Ensure that connection to the device is correct and that all cables are fully inserted.
There is no picture/
Remove and reconnect all cables connected to the TV and the external devices. Try new cables if possible.
sound or distorted
Restart the connected devices by unplugging each device's power cord and then plugging it in again.
picture/sound from
an external device
If "No Signal" is displayed on the TV, ensure that the correct input source has been selected.
When using a 4K playback device, ensure the cable is a High-Speed HDMI cable.
Ensure the volume is not muted. If it is, press the VOL+ button to restore the sound.
If earphones are connected, unplug them.
Ensure that connection to the external audio device is correct and that all cables are fully inserted.
Ensure correct input source and audio settings have been selected on the external audio device.
There is no/
distorted sound
Move the TV away from electronic equipment or devices that could cause interference.
When using an external audio device via a HDMI cable, ensure that the device supports HDMI-ARC and, if applicable,
the ARC setting is turned On (refer to the connection guide in the user manual of the connected device).
When using an external audio device via an optical cable, check that the Menu > Sound > Sound Out > Select
Optical and then Menu > Sound > Additional Settings > Digital Sound Out is set to PCM.
Ensure the TV is connected to the Internet.
The smart apps
Ensure the TV has a high-speed internet connection to get the best-streaming picture resolution.
are not working
properly
An unstable internet connection may cause delays or interruptions. In addition, applications may terminate automatically
depending on the network environment. If this occurs, check your internet connection and try again.
Solution
TROUBLESHOOTING | 47
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