HDMIBefore requesting service or assistance, please follow these simple guides tosolve the problem.If the problem still persists, please contact your local Panasonic dealer forassistance.Sound is unusual● Check the setting of HDMI Audio Format in the Sound Menu to match theaudio signal from the connected equipment.Watching > For best audio > Advanced settings● Check the HDMI Input setting in the Sound Menu.Watching > For best audio > Advanced settings● If digital sound connection has a problem, select analogue soundconnection.Watching > External equipment > HDMI features● Set HDMI Auto Setting in the Setup Menu to Mode1.Watching > 4K resolution > HDMI Auto SettingPictures from external equipment are unusual when the equipment isconnected via HDMI● Check the HDMI cable is connected properly.Watching > External equipment > External connection● Turn the TV and equipment off, then turn them on again.● Check an input signal from the equipment.Watching > External equipment > Valid input signals● Use equipment compliant with EIA/CEA-861/861D.● Set HDMI Auto Setting in the Setup Menu to Mode1.Watching > 4K resolution > HDMI Auto Setting- 311 -