If operations become unstable when connected to a
Turn VIERA Link off.
1Press and hold [MUTE] on the remote control and [VOLUME s] on this unit for more than 2 sec.
≥The setting is changed when the 
D, DTS and
PCM indicators blink.
2After the setting has changed, turn off and then
on all the connected devices.
≥To reset the setting, return to the factory preset. (> 21)
≥When VIERA Link is turned off the ARC function is not available. Be sure to connect the optical digital audio cable. (> 15)
Sound
No sound (or image).≥Turn muting off. (> 18)
≥Check the connections to the other devices. (> 15, 16)
≥Make sure that the received audio signal is compatible with this unit. (> 23)
≥Turn this unit off and then on again.
≥If this unit is connected to the TV with an HDMI cable. Make sure that the TV’s HDMI terminal is labeled “HDMI (ARC)”. If not, connect using the optical digital audio cable. (> 15)
≥If this unit is connected to a Panasonic TV and this unit is turned on using the button on this unit or the remote control, sound might not be output from this unit’s speakers. In this case, turn this unit on using the TV’s remote control. (> 20)
≥If the connections are correct, there might be a problem with the cables. Reconnect the unit with different cables.
≥Check the audio output settings on the connected device.
≥When the 
D and DTS indicators blink and there is no audio output from this unit, turn the unit off, remove the AC power supply cord and consult you dealer.
≥If the BD/DVD indicator flashes and there is no audio output, try the following.
1 Turn the connected device off and then on.
2 Turn off this unit, remove the HDMI cable, then reconnect the HDMI cable and turn this unit back on.
DTS audio cannot be output from this unit. Make sure that the digital audio output setting on
22 the connected device is set to “Bitstream”.
If the digital output setting of TV or player is set to “Bitstream” change the audio output on this unit.
1Press and hold [BD/DVD] for more than 2 sec.
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BC
2While the indicator of the current setting is
flashing, press [BD/DVD] to change the setting.
AMain and secondary B Main
C Secondary (SAP: Secondary Audio Program) ≥ The setting is maintained until it is changed
again.
The volume is lowered when the unit is turned on.If this unit is turned off with the volume setting in the greater half (above 50), this unit will automatically lower the volume to the middle (50) when the unit is turned on.
To turn off this function:
1Press and hold [MUTE] on the remote control and [VOLUME r] on this unit for more than 2 sec.
≥The setting is changed when the 
D, DTS and PCM indicators blink.
≥To reset the setting, return to the factory preset. (> 21)
The audio from the TV is distorted.Change the TV’s digital audio output settings to “Bitstream”.
The dialog is too persistent or the dialog does not sound natural.This unit has a function to make the dialog stand out when the volume is low.
To turn off this function:
1Press and hold [TV] on the remote control and [VOLUME s] on this unit for more than 2 sec.
≥The setting is changed when the 
D, DTS and PCM indicators blink.
≥To reset the setting, return to the factory preset. (> 21)