DB Drive Okur A7 Series A7300.2 Benutzerhandbuch - Seite 11
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4. TROUBLE SHOOTING
NO SOUND ( NO OUTPUT )
1) Please check all connections, cables' rounting, short and voltage at OKUR amplifiers and headunit.
2) Please check built-in or external fuses ,If it is brown, please replace with new one.
3) Please check whether speakers work well, you can test speakers by connecting to another amplifier.
PROTECTION
1) Please check overload, overheat ( thermal ), short, voltage and DC offset.
2) Minimum working impedance for 2 and 4 channel amplifiers is 2 ohm stereo or 4 ohm mono
minimum working impedance for all Class D mono amplifiers is 1 ohm for single unit and 2 ohm for
linked operation.
3) If the OKUR amplifiers are 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 OKUR amplifiers to prevent thermal
protection.
4) A7 750.1, A7 1100.1, A7 1500.1, A7 2000.1 and A7 2500.1 have voltage protection as 8.5V~16V
If Voltage is out of range as above, Platinum series amplifiers will be protected.
POOR BASS RESPONSE
1) Please check speaker polaritys.
WHINING NOISE
1) Engine noise is caused by poor grounding of OKUR amplifiers, headunit, other components, battery or
alternator, so please check all grounding connections.
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