trouble shooting
-7-
R+M
This power amplifier is featured with a efficient protection system to prevent any damages like
over-heating, overvoltage, short-circuit and DC at the loudspeaker output.
Occuring an error the protection-LED will light in red.
In order to check the problem, first turn down all levels of the head unit, afterwards turn it off.
AMPLIFIER IS NOT
POWERED UP, NO LED
IS LIGHTENING
- ground connection professional connected?
- +12V powercable professional connected?
- remote cable professional connected?
- fuses inserted and alright?
- analyze voltage on the amplifier.
PROTECTION LED
ILLUMINATES GREEN
WHILE AMPLIFIER IS
SOUNDLESS
- cinch cable alright and professional connected?
- loudspeaker professional connected?
- head unit all right?
PROTECTION LED
ILLUMINATES RED
WHEN AMPLIFIER IS
POWERED UP
- amplifier too hot?
- short-circuit at the loudspeaker output?
- short-circuit caused by loudspeaker cable with vehicle
chassis (ground)?
- input voltage too high (e.g.faulty lighting dynamo)?
ERROR IN AMPLIFIER
FUSE
- ground professional connected?
- loudspeaker impedance alright?
! CAUTION !
Make sure when changing fuses to use the same value
SOUND TOO LOW OR
LOW-DISTORTED SOUND
- input level control “GAIN” is set to match the head unit?
- output level control of the head unit alright?
- loudspeaker error?
- loudspeaker cable checked?
- crossover frequencies has been properly set?
(Check head unit, amplilfier, DSP, soundprozessor,
equalizer, frequency bandpassfilter...)
HIGH HISS-ENGINE NOISE
IN SPEAKERS
- ground connection professional connected?
- short-circuit caused by loudspeaker cable with vehicle
chassi (ground)?
- cinchcable (RCA) and/or loudspeaker cabel installed too
close to the power connection cable?
- cinch ground (RCA) of the head unit alright?
Please contact your specialist dealer if the amplifier is still not working after it has been
checked with the error list!
For warranty adjustement / repairs the original invoice has to be attached!
Opening the power amplifier is leading to a lost of warranty in either case!
CAUTION
OVERHEATING
(PROTECTION LED
ILLUMINATES RED WHEN
AMPLIFIER IS POWERED UP)
- impedance alright?
- loudspeaker error?
- adequate airflow of the amplifier?
! CAUTION !
After cooling down, the amplifier turns on automatically.
