Owner's Manual

APPENDIX D: TROUBLE SHOOTING
"How do I properly set the input sensitivity on
my
amplifier"
Please refer to Appendix A (page
14)
to set the input sensitivity for
maximum, low-distortion output.
liMy amplifier doesn't turn on"
Check
the fuse, not just visually, but with a continuity meter. It
is
possible for a fuse to have poor internal connections that
cannot be found by visual inspection.
It
is
best to take the
fuse out
of
the holder for testing.
If
no problem
is
found with
the fuse, inspect the fuse-holder.
Check
the integrity
of
the connections made to each
of
the
"+12VDC", "Ground",
and
"Remote" terminals. Ensure
that no wire insulation
is
pinched by the terminal set screw
and that each connection
is
tight.
Check to make sure there
is
+
12V
at the "Remote" connection ofthe
amplifier. In some cases, the turn-on lead from the source unit
is
insufficient to
turn
on multiple devices and the use
of
a relay
is
required.
To
test for this problem, jump the "+12VDC" wire
to the "Remote" terminal
to
see if the amplifier turns on.
If
this
does not work, proceed
to
the next step.
"l get a distorted I attenuated sound coming out ofthe speaker(s)"
Check
the speaker wires for a possible short, either between the
positive and negative leads
or
between either speaker lead
and the vehicle's chassis ground.
If
a short
is
present, you
will experience distorted and/or attenuated output. The
"Protect" light will illuminate in this situation. It may be
helpful to disconnect the speaker wires from the amplifier
and use a different set ofwires connected to a test speaker.
Check
the nominal load impedance to verify that each channel
of
the amplifier
is
driving a load equal to or greater
than
2 ohms in stereo mode
(4
ohms bridged).
Check
the input signal
and
input signal cables to make sure signal
is
present at the "Amplifier
Inputs"
and
the cables are not
pinched or loose.
It
may be helpful to
try
a different set
of
cables and/or a different signal source to be sure.
liMy amplifier's
output
fluctuates when I tap on
it
or hit a bump"
Check
the connections to the amplifier. Make sure that the
insulation for all wires has been stripped back far enough to
allow a good contact area inside the terminal block.
Check
the input connectors to ensure that they all are making good
contact with the input jacks on the amplifier.
16
..JL
AUDIO
M43DD