Troubleshooting - NAD C 425 Owner's Manual

Reference

TROUBLESHOOTING

PROBLEM
NO SOUND
NO SOUND IN ONE CHANNEL
NOISE, HISS
DISTORTION
WHISTLES OR BUZZES ON FM & AM
WHISTLES OR BUZZES ON AM
NO RDS INFORMATION
10
CAUSE
• Power AC lead unplugged or power not
switched on
• Signal leads incorrectly connected
• Station not selected or weak signal with FM
Mute on
• Internal fuse blown
• Signal leads to amplifier disconnected or
damaged
• 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
SOLUTION
• Check AC lead
• Check connections to amplifier
• Re-tune or switch off FM Mute
• Consult dealer
• Check leads and connections
• 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