Troubleshooting
Before requesting service, make the following checks. If you are in doubt about some of the check points, or if the solutions indicated in the following guide do not solve the problem, consult your dealer for instructions.
General operation
To return to the factory preset.
≥While this unit is on, press [Í/I] on this unit for more than 4 sec.
(All the indicators will blink twice when the unit is reset.)
The remote control doesn’t work properly.
≥It is possible that the insulation sheet has not been removed. Remove the insulation sheet. (> 7)
≥The remote control and this unit are using different codes. Change the code on the remote control. (> 17)
≥It may be necessary to set the code of the remote control again after changing the battery of the remote control. (> 17)
This unit does not operate correctly.
≥If the HDMI cable is connected to the wrong terminal (HDMI AV IN or HDMI AV OUT), this unit will not operate correctly. Turn this unit off, disconnect the AC mains lead and reconnect the HDMI cable(s). (> 10)
When operating the connected device, this unit reacts in an unwanted manner.
≥HDAVI Control commands may use a different signal depending on the make of the device. In this case, set “VIERA Link” to “Off”. (> 17, “VIERA Link”)
VIERA Link related operations no longer function properly.
≥Check the “VIERA Link” setting on the connected devices.
≥When the HDMI connections are changed, after a power failure or after the AC mains lead has been removed, VIERA Link operations may not function properly.
Power
No power.
Power of this unit is turned off when the input for the TV is changed.
≥This is a normal feature when using VIERA Link (HDAVI Control 4 or later). For details please read the operating instructions for the TV.
Sound
No sound (or image).
≥Turn muting off. (> 12)
≥Check the connections to the other devices. (> 10)
≥Check the audio output settings on the connected device.
≥Turn this unit off and then on again.
≥When connected to an ARC compatible TV, check if the TV’s connected terminal is ARC compatible.
≥If the connections are correct, there might be a problem with the cables. Reconnect the unit with different cables.
≥When using the optical digital audio cable, this system is not able to play audio with a sampling frequency greater than 48 kHz.
Sound is not heard when playing
≥This may occur due to digital copyright protection of the disc when using the optical digital audio cable. This system is not able to play audio with a sampling frequency greater than 48 kHz.
If the “ 
D/DTS” indicator is blinking, unplug the AC mains lead and consult your dealer.
If the “TV, BD/DVD” indicator is blinking, try the following to correct the problem. Consult your dealer if the problem persists.
≥Turn the connected device off and on again.
≥Turn this unit off and reconnect the HDMI cables and then turn this unit on again.
≥Insert the AC mains lead securely. (> 11)
≥After turning this unit on, if the “TV, BD/DVD”
indicator or the “ 
D/DTS” indicator blinks and this unit immediately turns off, unplug the AC
16 mains lead and consult your dealer.