Reference; Troubleshooting - NAD T175 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 175 does not respond to
HTRC 1 remote.
T 175 does not respond to
front panel commands or
remote
control.
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 Auto Calibration settings along with other stored presets and settings will all be deleted upon restoring your T 175 to its factory defaults.
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POSSIBLE CAUSES
• AC power unplugged.
• Power not switched on.
• Outlet has no power.
• 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.
• Sub 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 175 digital
input.
• Source component not configured for multichannel digital
output.
• Batteries are flat or incorrectly inserted
• IR transmitter window on remote or IR Receiver window on
T 175 is obstructed.
• T 175 front panel is in very bright sunlight or ambient light.
• Microprocessor error.
• T 175 may have over heated.
• 12V TRIGGER IN/OUT is set to AUTO position.
POSSIBLE SOLUTIONS
• Check AC cable connection and outlet
• Check cables.
• Check "Speaker Configuration" menu.
• Select appropriate listening mode.
• Correct "Speaker Configuration" or "Speaker
Levels" settings.
• Power-up subwoofer, check Sub'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 175.
• Reduce sunlight/room lighting.
• Power-down the T 175 via the rear panel
Power switch and unplug it from the AC
outlet.
• Wait five minutes, re-connect and power up.
• Switch to 12V TRIGGER IN/OUT OFF position.