DB Drive Euphoria Xpert Manuale d'uso - Pagina 6

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4. TROUBLE SHOOTING

NO SOUND ( NO OUTPUT )

1) Please check all connections, cables' routing, short and voltage at amplifier and headunit.

2) Please check built-in or external fuses, If it is blown, please repalce with new one.

3) Please check whether speakers work well, you can test speakers by connecting to another amplifiers.

PROTECTION

1) Please check overload, overheat ( thermal ) , short, voltage and DC offset.

2) Minimum working impedance for EX4 is 2ohm stereo or 4ohm bridged.

EX4 working voltage is 10 ~ 16 volts.

3) If the amplifier is shut down due to overheat, Reset by turning off the remote input and allowing time to cool down.

Please make sure there are no airflow obstructions around amplifier to prevent thermal protection.

WHINING NOISE

1) Engine noise is caused by poor grounding of amplifier, headunit, other components, battery or

alternator, so please check all grounding connections.