Kenwood DDX771 - Manual (Page 53)

ENGLISH 53
CONNECTION/INSTALLATION
Before installing the unit
V WARNING
• If you connect the ignition wire (red) and the
battery wire (yellow) to the car chassis (ground),
you may cause a short circuit, that in turn may
start a fire. Always connect those wires to the
power source running through the fuse box.
• Do not cut out the fuse from the ignition wire (red)
and the battery wire (yellow). The power supply
must be connected to the wires via the fuse.
V Precautions on installation and connection
• Mounting and wiring this product requires
skills and experience. For best safety, leave the
mounting and wiring work to professionals.
• Make sure to ground the unit to a negative 12 V
DC power supply.
• Do not install the unit in a spot exposed to direct
sunlight or excessive heat or humidity. Also avoid
places with too much dust or the possibility of
water splashing.
• Do not use your own screws. Use only the screws
provided. If you use the wrong screws, you could
damage the unit.
• If the power is not turned on (“Miswiring DC Offset
Error”, “Warning DC Offset Error” is displayed),
the speaker wire may have a short circuit or
have touched the chassis of the vehicle and the
protection function may have been activated.
Therefore, the speaker wire should be checked.
• If your car’s ignition does not have an ACC
position, connect the ignition wires to a power
source that can be turned on and off with the
ignition key. If you connect the ignition wire to a
power source with a constant voltage supply, such
as with battery wires, the battery may be drained.
• Only for DDX771:
If the console has a lid, make sure to install the
unit so that the monitor panel will not hit the lid
when closing and opening.
• If the fuse blows, first make sure the wires are not
touching to cause a short circuit, then replace the
old fuse with one with the same rating.
• Insulate unconnected wires with vinyl tape or
other similar material. To prevent a short circuit,
do not remove the caps on the ends of the
unconnected wires or the terminals.
• Connect the speaker wires correctly to the
terminals to which they correspond. The unit may
be damaged or fail to work if you share the
wires or ground them to any metal part in the car.
• When only two speakers are being connected to
the system, connect both connectors either to
the front output terminals or to the rear output
terminals (do not mix front and rear). For example,
if you connect the connector of the left speaker
to a front output terminal, do not connect the
connector to a rear output terminal.
• After the unit is installed, check whether the brake
lamps, blinkers, wipers, etc. on the car are working
properly.
• Mount the unit so that the mounting angle is 30°
or less.
• Do not press hard on the panel surface when
installing the unit to the vehicle. Otherwise scars,
damage, or failure may result.
V CAUTION
Install this unit in the console of your vehicle.
Do not touch the metal part of this unit during and
shortly after the use of the unit. Metal parts such as
the heat sink and enclosure become hot.
Supplied accessories for installation
1 Wiring harness x 1
2 Trim plate x 1
3 Extension wire x 1
4 Extraction keys x 2
5 Flat head screws (M5 x 7 mm) x 6
6 Round head screws (M5 x 6 mm) x 6
7 Microphone x 1 *
* Only for DDX771/DDX491HD/DDX471HD/DDX371/DDX310BT/
DDX3071BT.
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