oneConcept X4-A4 - Troubleshooting

24
EN
TROUBLESHOOTING
Problems Cause / Solution
The power indicator does not light
up.
• The fuse is loose or blown. -
Fasten the fuse or change it with
a new one.
• The ground lead is not securely
connected. - Fasten to a metal
point of the car.
• The connection master unit
is not turned on. - Turn on the
master unit.
• The system employs too many
ampliers. - Use a relay.
• Check the battery voltage
(10.5 – 15 V).
The speaker output is off. The
protection indicator lights up in red.
• The speaker outputs are short-
circuited. - Turn o power
switch. Rectify the cause
of the short-circuit and
correct.
The unit heats up abnormally or
operating temperature.
• Use speakers with suitable
impedance (2 – 8 Ω stereo),
(4– 8 Ω, when used as a bridging
amplier).
• Make sure to place the unit in a
well ventilated location.
Alternator noise is heard. • The power connecting leads
are installed too close to the
RCA pin cords. - Tidy these
connecting leads and keep the
leads away from the cords.
• The ground lead not securely
connected. - Fasten the ground
lead securely to a metal point of
the car.
• Negative speaker leads are
touching the car chassis. - Keep
the leads away from the car
chassis.
The sound is mufed. • The FILTER switch must be set
to the “LPF” position.
The sound in too low. • The level adjustment
control must be set to the
“MIN”position.