NAD 712 Manuel D'installation page 11

ceases to glow, return the amplifier to a NAD dealer
for service.
TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSE
No sound Power AC lead unplugged or power not switched on. Check AC lead.
Tape 1 Monitor selected. De-select Monitor mode.
Mute on. Switch off Mute.
Rear Pre/power amp links not fitted correctly. Fit links..
Internal fuse blown. Consult dealer.
No sound in one channel Balance control not centered. Center Balance control.
Speaker not properly connected or damaged. Check connections and
speakers.
Input lead disconnected or damaged. Check leads and connections.
Connecting cable pulled loose or making poor contact in socket. Rotate plugs
in sockets to restore contact.
Short-circuit in a defective connecting cable. Wiggle all cables, especially
where they enter plugs.
Weak bass; diffuse Speakers wired out of phase. Check connections to all speakers in the system
stereo imaging
Remote Control not working Batteries flat, or incorrectly inserted. Check or replace batteries.
IR transmitter or receiver windows obstructed. Remove obstruction.
Tuner noise Hiss - Weak signal. Check station tuning. Adjust or replace antenna.
Distortion - Multipath signals. Check station tuning. Adjust or replace antenna.
Whistles or buzzes on FM & AM: Interference from other electrical sources -
computers, games consoles. Check station tuning. Switch off or move the
source of the electrical noise.
Whistles or buzzes on AM: Interference from fluorescent lighting or electrical
motors. Check station tuning. Adjust or replace AM antenna.
GB
NAD
11