Kenwood KAC-PS702EX Instruction Manual

KAC-PS702EX
KAC-5207
STEREO/BRIDGEABLE POWER AMPLIFIER
INSTRUCTION MANUAL
AMPLIFICATEUR DE PUISSANCE STEREO/COMPATIBLE
Take the time to read through this instruction manual.
Familiarity with installation and operation procedures will help
you obtain the best performance from your new power amplifier.
Installation
Accessories
Self-tapping screws
ø 4 x 20 mm
Speaker level input cable
230 mm (9-1/16")
Installation board, etc. (thickness : 15 mm or more)
Installation procedure
Since there are large variety of settings and
connections possible according to applications,
4
read the instruction manual well to select the
proper setting and connection.
1
1. Remove the ignition key and disconnect the
negative terminal of the battery to prevent
short circuits.
2. Set the unit according to the intended usage.
3. Connect the input and output wires of the
units.
56 mm (2-3/16")
4. Connect the speaker wires.
5. Connect the power wire, power control wire
and grounding wire following this order.
6. Install the installation fittings in the unit.
7. Attach the unit.
8. Connect the negative
CAUTION
• Do not install in the below locations;
(Unstable location, In a location that interferes
with driving, In a location that gets wet, In a
dusty location, In a place that gets hot, In a place
that gets direct sunlight, In a location that gets
hit by hot air)
• Do not install the unit under the carpet.
Otherwise heat build-up occurs and the unit
may be damaged.
• Install this unit in a location which allows heat to
easily dissipate.
Once installed, do not place any object on top
of the unit.
• The surface temperature of the amplifier will
become hot during use. Install the amplifier in a
place where people, resins, and other substances
that are sensitive to heat will not come into
contact with it.
Parts included
• When making a hole under a seat, inside the
trunk, or somewhere else in the vehicle, check
that there is nothing hazardous on the opposite
side such as a gasoline tank, brake pipe, or wiring
harness, and be careful not to cause scratches or
other damage.
• Do not install near the dashboard, rear tray, or air
bag safety parts.
• The installation to the vehicle should securely
fasten the unit to a place in which it will not
obstruct driving. If the unit comes off due to a
shock and hits a person or safety part, it may
cause injury or an accident.
• After installing the unit, check to make sure that
electrical equipment such as the brake lamps,
turn signal lamps and windshield wipers operate
normally.

Safety precautions

WARNING
To prevent injury or fire, take the following
precautions:
• Mounting and wiring this product requires skills and
experience. For safety's sake, leave the mounting and
wiring work to professionals.
• When extending the ignition, battery, or ground wires,
make sure to use automotive-grade wires or other wires
with the range of 5 mm2 (AWG 10) or more to prevent
wire deterioration and damage to the wire coating.
• To prevent a short circuit, never put or leave any
metallic objects (such as coins or metal tools) inside the
unit.
• If the unit starts to emit smoke or strange smells, turn
off the power immediately and consult your KENWOOD
dealer.
• Do not touch the unit during use because the surface of
the unit becomes hot and may cause burns if touched.
CAUTION
To prevent damage to the machine, take the
following precautions:
• Be sure the unit is connected to a 12V DC power supply
with a negative ground connection.
• Do not open the top or bottom covers of the unit.
• 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.
• When replacing a fuse, only use a new one with the
prescribed rating. Using a fuse with the wrong rating
may cause your unit to malfunction.
• To prevent a short circuit when replacing a fuse, first
disconnect the wiring harness.
NOTE
• If you experience problems during installation, consult
your KENWOOD dealer.
• If the unit does not seem to be working right, consult
your KENWOOD dealer.
Cleaning the unit
If the front panel gets dirty, turn off the power and wipe
the panel with a dry silicon cloth or soft cloth.
CAUTION
Do not wipe the panel with a hard cloth or a cloth
dampened by volatile solvents such as paint thinner and
alcohol. They can scratch the surface of the panel and/or
cause the indicator letters to peel off.
To prevent battery rise
When the unit is used in the ACC ON position without
turning the engine ON, it depletes the battery. Use it after
starting the engine.
terminal of the battery.
Protection function
The protection function is activated in the following
situations:
This unit is equipped with a protection function for
protecting this unit and your speakers from various
accidents or problems that can occur.
When the protection function is triggered, the power
indicator goes off and the amplifier stops operating.
• When a speaker wire may be short-circuited.
• When a speaker output contacts ground.
• When the unit malfunctions and a DC signal is sent to
the speaker output.
• When the internal temperature is high and unit won't
operate.
Wiring
• Take the battery wire for this unit directly from the
battery. If it's connected to the vehicle's wiring harness,
it can cause blown fuses etc.
• If a buzzing noise is heard from the speakers when the
engine is running, connect a line noise filter (optional)
to each of the battery wire.
• Do not allow the wire to directly contact the edge of
the iron plate by using Grommets.
• Connect the ground wire to a metal part of the car
chassis that acts as an electrical ground passing
electricity to the battery's negative terminal. Do not
turn the power on if the ground wire is not connected.
• Be sure to install a protective fuse in the power cord
near the battery. The protective fuse should be the
same capacity as the unit's fuse capacity or somewhat
larger.
• For the power cord and ground, use a vehicle type
(fireproof) power wring cord. (Use a power wiring cord
with the range of 5 mm2 (AWG 10) or more.)
• When more than one power amplifier are going to be
used, use a power supply wiring wire and protective
fuse of greater current-handling capacity than the total
maximum current drawn by each amplifier.
Speaker selection
• Using speakers with smaller input ratings than the
amplifier's output power would result in smoke
generation or equipment failure.
• The impedance of the speakers that are going
to be connected should be 2Ω or greater (for
stereo connections), or 4Ω or greater (for bridged
connections). When more than one set of speakers are
going to be used, calculate the combined impedance
of the speakers and then connect suitable speakers to
the amplifier.
<Example>
Combined impedance