TROUBLESHOOTING

Problem

Cause

Solution

 

 

 

NO SOUND

• Power AC lead unplugged or power not

• Check AC lead

 

switched on

 

 

• Signal leads incorrectly connected

• Check connections to amplifier

 

• Station not selected or weak signal with

Re-tune or switch off FM Mute

 

FM Mute on.

 

 

• Internal fuse blown

• Consult dealer

 

 

 

NO SOUND IN ONE CHANNEL

• Signal leads to amplifier disconnected

• Check leads and connections

 

or damaged

 

 

 

 

NOISE, HISS

• Weak signal

• Check station tuning. Adjust or replace

 

 

antenna.

 

 

 

DISTORTION

Multi-path signals or interference from

• Check station tuning. Adjust or replace

 

another station

antenna

 

 

 

WHISTLES OR BUZZES ON FM & AM

• Interference from other electrical

• Check station tuning. Switch off or

 

sources - computers, games consoles

move the source of the electrical noise

 

 

 

WHISTLES OR BUZZES ON AM

• Interference from fluorescent lighting

• Check station tuning. Adjust or replace

 

or electrical motors

AM antenna

 

 

 

NO RDS INFORMATION

• Station signal too weak.

• Check station tuning. Adjust or replace

 

 

antenna

 

• Station not transmitting RDS data

• No remedy

 

 

 

GB

7

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Image 7
NAD C440 owner manual Troubleshooting