Troubleshooting - NAD C740 Owner's Manual

NO SOUND
NO SOUND ONE CHANNEL
WEAK BASS/ DIFFUSE STEREO IMAGE
REMOTE CONTROL HANDSET NOT
WORKING
NO SOUND WITH TUNER
NOISE, HISS ON AM AND FM
DISTORTION ON FM
WHISTLES OR BUZZES ON FM & AM
WHISTLES OR BUZZES ON AM
NO RDS INFORMATION
GB
10
Problem
• Power AC lead unplugged or power not
switched on
• Tape 2 Monitor selected
• Mute on
• Rear Pre-out/Main-in amp links not fitted
• Speakers not switched on
• Balance control not centered
• Speaker not properly connected or
damaged.
• Input lead disconnected or damaged
• Speakers wired out of phase
• Batteries flat, or incorrectly inserted
• IR transmitter or receiver windows
obstructed
• IR receiver in direct sun or very bright
ambient light
• Antenna leads incorrectly connected
• Station not selected or weak signal with
FM Mute on.
• Internal fuse blown
• Weak signal
• Multi-path signals or interference from
another station
• Interference from other electrical
sources - computers, games consoles
• Interference from fluorescent lighting
or electrical motors
• Station signal too weak.
• Station not transmitting RDS data

TROUBLESHOOTING

Cause Solution
• Check if AC lead is plugged in and
power switched on
• De-select Tape 2 Monitor mode
• Switch off Mute
• Fit links
• Switch Speakers A or B on
• Center Balance control
• Check connections and speakers
• Check leads and connections
• Check connections to all speakers in
the system
• Check or replace batteries
• Remove obstruction
• Place unit away from direct sun, reduce
amount of ambient light
• Check antenna connections to receiver
• Re-tune or switch off FM Mute
• Consult dealer
• Check station tuning. Adjust or replace
antenna.
• Check station tuning. Adjust or replace
antenna
• Check station tuning. Switch off or
move the source of the electrical noise
• Check station tuning. Adjust or replace
AM antenna
• Check station tuning. Adjust or replace
antenna
• No remedy