NAD T775 - Manual (Page 42)

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