What might seem to be a malfunction in your unit may just be the result of slight misoperation or
miswiring. Before calling service, first check the following table for possible problems.
The power does not turn
There’s a source you
The memory is erased
when the ignition
is
No sound can be heard,
or the volume is low.
The sound quality is poor
doesn’t work.
The fuse has blown.
No ACC position on vehicle
ignition.
The computer chip in the
unit is not functioning
normally.
There’s no CD inserted.
The battery wire has not
been connected to the
proper terminal.
The ignition and battery
wire are incorrectly
connected.
You’re using Non-fading
preout.
Tuner source is selected.
The fader or balance
settings are set all the way
to one side.
The input/output wires or
wiring harness are
connected incorrectly.
The values of Volume offset
are low.
One of the speaker wires is
being pinched by a screw in
the car.
The speakers are not wired
correctly.
The preout jack is being
used.
The Dimmer wire isn’t
connected correctly.
After checking for short circuits in the
wires, replace the fuse with one with the
same rating.
Connect the same wire to the ignition as
the battery wire.
Press the reset button on the unit.
Set the media you want to listen to. If
there’s no media in this unit, you can’t
switch to each source.
Connect the wire correctly, referring to the
section on <Connecting Wires to Termi-
nals>.
Connect the wire correctly, referring to the
section on <Connecting Wires to Termi-
Loudness has no effect in Non-fading
High-pitched tone isn’t compensated for
when in Tuner source. 1
Center the fader and balance settings.
Reconnect the input/output wires or the
wiring harness correctly. See the section
on <Connecting Wires to Terminals>.
Increase the values of Volume offset.
Check the speaker wiring.
Reconnect the speaker wires so that each
output terminal is connected to a different
speaker.
The Touch Sensor Tone can’t be output
from the preout jack.
I
Check the Dimmer wire connection.
I
DB625MP
25
The values of Volume offset Increase the values of Volume offset.
are
low.
The fader or balance Center the fader and balance settings.
settings are set all the way
to
one side.
Even
if
Loudness
is
turned Tuner source is selected.
ON, high-pitched tone isn't
compensated
for.
Connect the same wire to the ignition as
the battery wire.
Press the reset button
on
the unit.
After checking for short circuits
in
the
wires, replace the fuse with one with the
same rating.
Set the media you want to listen to.
If
there's no media
in
this unit, you can't
switch to each source.
Connect the wire correctly, referring to the
section on <Connecting Wires to Termi-
nals>.
Loudness has no effect
in
Non-fading
preout.
High-pitched tone isn't compensated for
when
in
Tuner source.
Connect the wire correctly, referring to the
section on <Connecting Wires to Termi-
nals>.
The Touch Sensor Tone can't
be
output
from the preout jack.
Check the speaker wiring.
Reconnect the input/output wires or the
wiring harness correctly. See the section
on
<Connecting Wires to Terminals>.
Reconnect the speaker wires so that each
output terminal is connected to a different
speaker.
Check the Dimmer wire connection.
There's no CD inserted.
The computer chip
in
the
unit
is
not functioning
normally.
No ACC position
on
vehicle
ignition.
The battery wire has not
been connected to the
proper terminal.
You're using Non-fading
preout.
The ignition and battery
wire are incorrectly
connected.
The speakers are not wired
correctly.
The input/output wires or
wiring harness are
connected incorrectly.
The preout jack is being
used.
The Dimmer wire isn't
connected correctly.
Nothing happens when
the buttons are pressed.
The memory is erased
when the ignition
is
turned
OFF.
There's no loudness
effect.
No sound can
be
heard,
or the volume is
low.
The sound quality is poor One of the speaker wires is
or distorted. being pinched by a screw
in
the
car.
The Touch Sensor Tone
doesn't sound.
The Dimmer function
doesn't work.
DB625MP
25
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