NAD T755 - Reference; Troubleshooting Common Issues

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.
•
No sound from some channels. Faulty/missing cables. • Check cables. •
“Speaker Conguration” channel (s) set to “OFF”. • Check “Speaker Conguration” 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 Conguration”
menu.
• Correct “Speaker Conguration” or “Speaker
Levels” settings.
•
Surround-channels level set too low on “Speaker Levels”
menu.
•
No sound from Subwoofer. Subwoofer is o, not powered or improperly connected. • Power-up subwoofer, check Sub’s AC outlet
or check connections.
•
Subwoofer set to “OFF” on “Speaker Conguration” menu. • Correct “Speaker Conguration” or “Speaker
Levels” settings.
•
Sub level set too low on “Speaker Levels” menu. •
No sound from Center channel. Source is a 2/0 (etc.). • Play a known 5.1-channel recording or select
Dolby Pro Logic IIx Music mode.
•
Dolby Digital or DTS recording without center channel;
Center set to “OFF” on “Speaker Conguration” menu.
• Correct “Speaker Conguration” 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 755 digital
input.
• Check connections. •
Source component not congured for multichannel digital
output.
• Check source component setup. •
T 755 does not respond to
HTR 3 remote.
Batteries are at or incorrectly inserted. • Check batteries. •
IR transmitter window on remote or IR Receiver window on
T 755 is obstructed.
• Check IR windows and ensure clear line-of-
sight from remote to T 755.
•
T 755 front panel is in very bright sunlight or ambient light. • Reduce sunlight/room lighting. •
T 755 does not respond to
front panel commands or
remote control.
Microprocessor error. • Power-down the T 755 via the rear panel
Power switch and unplug it from the AC
outlet.
•
T 755 may have over heated. • Wait ve minutes, re-connect and power up. •
12V TRIGGER IN/OUT is set to AUTO position. • Switch to 12V TRIGGER IN/OUT OFF position. •
NOTES
• 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 Setup settings along with other stored presets and settings will all be deleted upon restoring your T 755 to its factory defaults.
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