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ENG-6
Troubleshooting
symptom
possible cause
action to take
no output
low or no remote turn-on
input
check remote turn-on voltage
output at amplifier and correct as
needed
fuse blown
check power wire integrity and
reversed polarity, repair as
needed and replace fuse
power wires not connected
check power wire and ground
connections and repair of replace
as needed
audio input not connected or
no output from source
check input connections and
signal integrity, repair or replace
as needed
speaker wires not connected
check speaker wires and repair
or replace as needed
audio cycles on
and off
speakers are blown
check system with known
working speaker and repair or
replace speakers as needed
thermal protection engages
when amplifier heatsink
temperature exceeds 90°C
make sure there is proper
ventilation for amplifier and
improve ventilation as needed
loose or poor audio input
check input connections and
repair or replace as needed
distorted output
amplifier level sensitivity set
too high; exceeding
maximum output capability of
amplifier
reset gain referring to the tuning
section of the manual for detailed
instructions
impedance load to amplifier
too low
check speaker impedance load if
below 2Ω stereo or 4Ω mono
rewire speakers to achieve a
higher impedance
shorted speaker wires
check speaker wire connections
and repair or replace as needed
speaker not connected to
amplifier properly
check speaker wiring and repair
of replace as needed refer to the
installation section of this manual
for detailed instructions
internal crossover not set
properly for speaker
reset crossovers referring to the
multi-cross crossover
configuration section of this
7


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