Troubleshooting - NAD T 977 Owner's Manual

REFERENCE

troubleShooting

condition
No power.
T 977 always at standby mode; cannot
be switched ON using the front panel
STANDBY button.
No sound.
No sound one channel.
One or more Channel Status LEDs remained
illuminated in red.
8
T977_eng_OM_v04.indd 8
poSSible cauSeS
• Mains power cord unplugged from mains
power source or from T 977's AC mains input.
• T 977 at standby mode.
• A mono plug is plugged-in at the +12V TRIGGER
IN port of the rear panel.
• No input signal applied through the INPUT
sockets.
• INPUT LEVEL CONTROL set to minimum level.
• Speaker not properly connected or damaged.
• Input lead disconnected or damaged.
• Protection circuit is engaged.
poSSible SolutionS
• Connect the mains power cord to T 977's
AC mains input and then plug into a mains
power source.
• Press Standby button to switch ON the T 977
from standby mode.
• Unplug the mono plug.
• Check that there is active input signal applied
through the INPUT sockets.
• Turn up INPUT LEVEL CONTROL to the correct
level.
• Check connections and speakers.
• Check leads and connections.
• 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.
17/04/2012 9:28am