Reference; Troubleshooting - NAD T 777 Owner's Manual

REFERENCE

TROUBLESHOOTING

CONDITION
No sound from all channels.
No sound from some channels.
No sound from surround channels.
No sound from Subwoofer.
No sound from Center channel.
No Dolby Digital/DTS.
T 777 does not respond to remote control
commands.
No RDS information.
Display shows "No Service List".
Reset T 777 to factory default settings: Press and hold [ a SOURCE ] and [FRONT INPUT/MP] front panel buttons until "Factory Reset..complete. " is shown
in the VFD.
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POSSIBLE CAUSES
AC power unplugged.
Power not switched on.
Outlet has no power.
Mute function is activated.
Faulty/missing cables.
"Speaker Configuration" channel (s) set to "OFF".
No surround listening mode is engaged.
Surround channels set to "OFF" on "Speaker
Configuration" menu.
Surround channels level set too low on
"Speaker Levels" menu.
Subwoofer is off, not powered or improperly
connected.
Subwoofer set to "OFF" on "Speaker
Configuration" menu.
Subwoofer level set too low on "'Speaker Levels"
menu.
Source is a 2/0 (etc.). Dolby Digital or DTS
recording without center channel.
Center set to "OFF" on "Speaker Configuration"
menu.
Center level set too low on "Speaker Levels"
menu.
Source's digital output is not connected to a
T 777 digital input.
Source component not configured for
multichannel digital output.
Batteries are flat or incorrectly inserted.
Infrared receiver (IR) window of T 777 or IR
transmitter of the remote control is obstructed.
T 777 front panel is in very bright sunlight or
ambient light.
Station signal too weak.
Station not transmitting RDS data.
DAB antenna not connected properly.
No DAB coverage in the area.
POSSIBLE SOLUTIONS
Check AC cable connection and outlet.
Toggle [MUTE] button to deactivate Mute
function.
Check cables.
Check "Speaker Configuration" menu.
Select appropriate listening mode.
Correct "Speaker Configuration" or "Speaker
Levels" settings.
Power up subwoofer, check subwoofer's
AC outlet or check connections.
Correct "Speaker Configuration" or "Speaker
Levels" settings.
Play a known 5.1-channel recording or
select Dolby Pro Logic IIx Music mode.
Correct "Speaker Configuration" or "Speaker
Levels" settings.
Check connections.
Check source component setup.
Check batteries.
Check IR windows and ensure clear line-
of-sight from remote to T 777.
Reduce sunlight/room lighting.
Check station tuning. Adjust or replace
antenna.
Tune to an RDS station that supports
program-service name (PS mode) and
radio-text mode (RT).
Check the connection and position of DAB
antenna.
Call your local DAB broadcast providers for
coverage information.