NAD T 977: REFERENCE

condition

poSSible cauSeS

poSSible SolutionS

No power.

• 

Mains power cord unplugged from mains 

power source or from T 977’s AC mains input.

• 

Connect the mains power cord to T 977’s 

AC mains input and then plug into a mains 

power source.

• 

T 977 at standby mode.

• 

Press Standby button to switch ON the T 977 

from standby mode.

T 977 always at standby mode; cannot 

be switched ON using the front panel 

STANDBY button.

• 

A mono plug is plugged-in at the +12V TRIGGER 

IN port of the rear panel.

• 

Unplug the mono plug.

No sound.

• 

No input signal applied through the INPUT 

sockets.

• 

Check that there is active input signal applied 

through the INPUT sockets.

• 

INPUT LEVEL CONTROL set to minimum level.

• 

Turn up INPUT LEVEL CONTROL to the correct 

level.

No sound one channel.

• 

Speaker not properly connected or damaged.

• 

Check connections and speakers.

• 

Input lead disconnected or damaged.

• 

Check leads and connections.

One or more Channel Status LEDs remained 

illuminated in red.

• 

Protection circuit is engaged.

• 

Check if all speaker wires are connected 

correctly and that none of the wires are 

damaged, causing a short circuit.

• 

Make sure there is adequate ventilation 

around the amplifier and that none of its 

ventilation slots, top or bottom are blocked.

REFERENCE

troubleShooting

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T977_eng_OM_v04.indd   8

17/04/2012   9:28am