JVC KW-M741BT Instruction Manual Download

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Connection/Installation

Before Installation

Before installation of this unit, please note the
following precautions.

WARNINGS

• 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.

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 part
such as the heat sink and enclosure become
hot.

NOTE

• 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 12V

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 (“There is an

error in the speaker wiring. Please check
the connections.” is displayed), the speaker
wire may have a short-circuit or 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.

• If the console has a lid, make sure to install the

unit so that the front panel will not hit the lid
when closing and opening.

• If the fuse blows, first make sure the wires

aren’t 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 the connectors either
to both the front output terminals or to both
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.

• Reception may drop if there are metal objects

near the Bluetooth antenna.

Bluetooth antenna unit