User`s manual
Troubleshooting
If you experience operation or performance problems with this product, compare your
installation with the electrical wiring diagram on the previous pages. If problems persist,
read the following troubleshooting tips which may help eliminate the problems.
SYMPTOM
POSSIBLE
REMEDY
Amplifier
will
not
Check
to make sure you have a
good
ground
connection.
power
up.
Check
that the Remote
Input
(Turn-On) has
at
least 3VDC.
Check that there is battery
power
on
the(+)
terminal.
Check that there is
at
least
12v.
Check
all fuses, replace
if
necessary.
Make sure that the Protection LED is
not
illuminated.
If
it
is lit,
shut
off
the amplifier briefly,
and
then
repower
it.
Protection LED
Check
for
short
circuits on speaker leads.
comes
on
when
Turn
down
the volume control on the
head
unit to
prevent
overdriving.
amplifier
is
Remove speaker leads,
and
reset the amplifier.
If
the Protection LED still
powered
up.
comes on, then the amplifier is faulty
and
needs servicing.
No output.
Check that all fuses are OK.
Check that amplifier is
properly
grounded.
Check that the Remote
Input
(Turn-On) has
at
least 3VDC.
Check that the RCA audio cables are
plugged
into the
proper
inputs.
Check all speaker wiring.
Low
output.
Reset the Level Control.
Check the Crossover Control settings.
Audio
present
in
Check the RCA interconnect cables.
only
one
channel.
Check all speaker wiring.
High hiss in
the
Disconnect all RCA inputs to the amplifiers.
If
the hiss disappears, then
speakers.
plug
in the
component
driving the amplifier
and
unplug its inputs.
If
the
hiss disappears
at
this point,
go
on until the faulty/noisy
component
is
found.
It
is
best
to
set
the amplifierls
input
level
control
as
low
as possible. The
best
subjective signal-to-noise ratio is achieved in this manner.
Try
to
set
the
head
unit
as high as possible (without distortion)
and
the
amp
input
level as
low
as possible.
Squealing noise
Check
for
improperly
grounded
RCA interconnects.
from
speakers.
Distorted
sound.
Check that the
Input
Level Control is
set
to match the signal/eve/
of
the
head
unit. Always
try
to
set
the
Input
Level as
low
as possible.
Check
that all crossover frequencies are
properly
set.
Check
for
short
circuits on the speaker leads.
Amplifier
gets
Check that the minimum speaker impedance for the amp model
is
correct.
very hot.
Check that there is
good
air
circulation
around
the amp.
In
some
applications,
it
may
be
necessary to
add
external cooling fan(s).
Engine noise
This is usually caused
by
poor
quality RCA cables, which can
pick
up
(static type)
radiated noise. Use only the
best
quality cables,
and
route them away
from
power
cables.
Engine noise
Check that speaker leads are
not
shorted
to the vehicle chassis.
{alternator
Check that the RCA grounds are
not
shorted
to the vehicle chassis.
whine)
Check that the
head
unit is
properly
grounded.
CHAOS EXXTREME II MOSFET
Amplifier
User's
Manual-
page
16