NAD T175 owner manual Troubleshooting, Condition Possible Causes Possible Solutions

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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.
No sound from some channels.	•	Faulty/missing cables.	•	Check cables.
	•	“Speaker Configuration” channel (s) set to “OFF.”	•	Check “Speaker Configuration” menu.
No sound from surround	•	No surround listening mode is engaged.	•	Select appropriate listening mode.
channels.
	•	Surround-channels set to “OFF” on “Speaker Configuration”	•	Correct “Speaker Configuration” or “Speaker
		menu.		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.).	•	Play a known 5.1-channel recording or select
				Dolby Pro Logic IIx Music mode.
	•	Dolby Digital or DTS recording without center channel;	•	Correct “Speaker Configuration” or “Speaker
		Center set to “OFF” on “Speaker Configuration” menu.		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 175 digital	•	Check connections.
		input.
	• Source component not configured for multichannel digital		• Check source component setup.
		output.
T 175 does not respond to	•	Batteries are flat or incorrectly inserted	•	Check batteries
HTRC 1 remote.
	• IR transmitter window on remote or IR Receiver window on		• Check IR windows and ensure clear line-of-
		T 175 is obstructed.		sight from remote to T 175.
	•	T 175 front panel is in very bright sunlight or ambient light.	•	Reduce sunlight/room lighting.
T 175 does not respond to	•	Microprocessor error.	• Power-down the T 175 via the rear panel
front panel commands or				Power switch and unplug it from the AC
remote				outlet.
control.
	• T 175 may have over heated.		• Wait five 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 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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