NAD T 775 - Reference; Troubleshooting

CONDITION POSSIBLE CAUSES POSSIBLE SOLUTIONS
No sound from all channels. r AC power unplugged. r Check AC cable connection and outlet.
r Power not switched on.
r Outlet has no power.
r Speaker A (or Speaker B) is not activated. r Activate Speaker A (or Speaker B) by pressing
the corresponding front panel or HTR 3
button.
No sound from some channels. r Faulty/missing cables. r Check cables.
r ’Speaker Conguration’ channel (s) set to
“OFF”.
r Check ‘Speaker Conguration’ menu.
r Power-amp or speaker-connections faulty. r Check power amp, cabling, and speakers.
No sound from surround channels. r No surround listening mode is engaged. r Select appropriate listening mode.
r Surround-channels set to “OFF” on ‘Speaker
Conguration’ menu.
r Correct ‘Speaker Conguration’ or ‘Speaker
Levels’ settings.
r Surround-channels level set too low on
‘Speaker Levels’ menu.
No sound from Subwoofer. r Subwoofer is o, not powered or improperly
connected.
r Power-up subwoofer, check Sub’s AC outlet
or check connections.
r Subwoofer set to “OFF” on ‘Speaker
Conguration’ menu.
r Correct ‘Speaker Conguration’ or ’Speaker
Levels’ settings.
r Sub level set too low on ‘Speaker Levels’
menu.
No sound from Center channel. r Source is a 2/0 (etc.). Dolby Digital or DTS
recording without center channel.
r Play a known 5.1-channel recording or select
Dolby Pro Logic IIx Music mode.
r Center set to “OFF” on ‘Speaker Conguration’
menu.
r Correct ‘Speaker Conguration’ or ‘Speaker
Levels’ settings.
r Center level set too low on ‘Speaker Levels’
menu.
No Dolby Digital/DTS. r Source’s digital output is not connected to a
T 775 digital input.
r Check connections.
r Source component not congured for
multichannel digital output.
r Check source component setup.
T 775 does not respond to HTR 3 remote. r Batteries are at or incorrectly inserted. r Check batteries.
r IR transmitter window on remote or IR A/V
Receiver window on T 775 is obstructed.
r Check IR windows and ensure clear line-of-sight
from remote to T 775.
r T 775 front panel is in very bright sunlight or
ambient light.
r Reduce sunlight/room lighting.
T 775 does not respond to front panel
commands or remote control.
r Microprocessor error.
r Power-down the T 775 via the rear panel Power
switch and unplug it from the AC outlet.
r T 775 may have over heated. r Wait ve minutes, re-connect and power up.
r 12V TRIGGER IN/OUT is set to AUTO position. r Switch 12V TRIGGER IN/OUT to OFF position.
Factory defaults for 120V version only : Press simultaneously Source
+ Front Input/MP
Factory defaults for 230V version only : Press simultaneously Source + Front Input/MP
Audyssey Auto Calibration settings along with other stored presets and settings will all be deleted upon restoring your T 775 to its factory
defaults.
REFERENCE
TROUBLESHOOTING
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