- 179 -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● Set the sound setting of the connected equipment to “2ch L.PCM”.● 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 featuresPictures 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.