Troubleshooting:
Refer to the list below and follow the suggested procedures. Speakers and
speaker wires/connections should be tested first.
No Output:
Confirm that all wiring is firmly connected.
Both +12V and REM terminals must have +12volts present and GND must
be connected to chassis ground or the negative terminal of the battery
Confirm that signal source is connected and is supplying output signals.
To confirm that the amp is working, connect an RCA patch cord to the
line inputs of the amplifier (do not connect the other end of the patch
cord). Briefly tap the center pin of each (disconnected) RCA plug on the
other (disconnected) end with your finger. This action should produce a
noise (brief static or hum) in the speakers.
If the amp is hot, check the speaker impedance or load. The total
minimum impedance of all speakers should not be lower than the ratings
of the amp.
Weak output:
Check gain control adjustment
Check speaker impedance
Noise in Audio:
Speaker and input wires should never be routed next to wires that
interconnect lights and other accessories/equipment in the vehicle.
Rerouting of these wires can often reduce noise.
A ‘clicking’ or ‘popping’ noise at a rate that follows engine speed is often
induced by the vehicles ignition system. Confirm that the vehicle is
equipped with resistor spark plugs and wires. The ignition system may
need service.
If the noise is a ‘whine’ that goes up or down with engine speed, confirm
that the amp and source unit is properly grounded.
If above suggestions do not improve or reduce noise interference, the
system should be checked by a professional installer.
A.
B.
C.
D.
A.
B.
A.
B.
C.
D.
SS EE N
N SS
RR EE
AA
RR
SS EE N
N SS
FF RR O
O N
N TT
XX -- O
O VV EE RR
M
M O
O
D
D
EE
XX -- O
O VV EE RR
M
M IIN
N
M
M
AA
XX
RR EE
AA
RR
FF RR O
O N
N TT
M
M IIN
N M
M
AA
XX
IIN
N PP U
U TT
Low Level Input Wiring
Power Input Wiring
EEA720.4
