There is background noise:
• The earthing cable is not connected properly. Remove any rust or paint from the contact surfaces.
•
The earthing point of the car radio and of the amplifier are not on the same potential, try different earthing points.
•
The cables of the amplifier are positioned too close to the cables for the ignition system of the vehicle.
•
The ignition system is not shielded.
•
The cables of the amplifier input are installed too close to the power supply cables.
The amplifier switches on and off during operation:
• The earthing cable does not have proper contact. The cable or the battery terminal might be corroded.
•
The voltage supplied at the +12V connection of the power terminal (14) is too low, the cable or the battery terminal
is corroded, the battery is weak.
•
Loose contact of the remote cable, REM connection of power terminal (14) has a loose contact or is corroded.
No bass is audible:
• One loudspeaker is connected with reverse polarity.
•
The bass control on the car radio is set to minimum.
•
The active switch is not set correctly.
Mid-high-ranges are not played:
• The active switch is not set correctly.
•
The high-range control of the car radio is set to minimum.
Repairs other than those described above should only be carried out by an authorised
specialist.
15. Disposal
At the end of its service life, dispose of the product according to the relevant statutory regulations.
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