TROUBLESHOOTING
Problems
Amplifier power up
failure
Protection LED lights on
when amplifier turn on
No sound output
Low sound output
Buzzing noise
Squealing noise
interference
Distorted sound output
Amplifier temperature
increased
Engine noise (static
sound) interference
Engine noise (alternator
whine) interference
Solutions
Examine if the ground connection is intact.
Examine if remote input has at least 5V DC.
Ensure supplied voltage is minimum 12V.
Examine if fuse is broken and replace if necessary.
Restart the device if protection LED light is on.
Examine speaker wire had short-circuit.
Turn colume down from head unit to prevent overdriving the device.
Device might need service or repair, if protection LED light is still on after resetting
the device.
Examine fuses and replace if necessary.
Examine ground connection is intact.
Examine if remote input has at least 5V DC.
Examine if RCA audio cables are connected to the right inputs.
Examine if speaker wiring is intact.
Reset Level Control.
Examine the Crossover Control setting.
Observe if the device is still producing noise after turning on and off the amplifier.
If yes, examine if the cables are correctly connected and if the cables and radio
are in good condition. Repair or replace if the cables or the radio are not in good
condition.
Ensure RCA connections are properly connected.
Ensure input level of the device matches the signal level of the head unit.
Always set the input level to the lowest.
Examine if crossover frequency is set correctly.
Examine if speaker wire had short-circuit.
Examine the minimum speaker impedance for the amp models is correct.
Ensure good air ventilation around the device. Add external cooling fan if necessary.
Usually caused by poor RCA cable quality, which release noise. Use only the best
quality cables, and route them away from power cables.
Examine if RCA cable are nowhere near or attached to the vehicle chassis.
Examine if head unit is properly connected to the wires.
If any of the following problem occur, please resort to Troubleshooting for the possible solutions. Consult Blaupunkt
authorized dealer if problem persist.
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