KENWOOD KAC-6402 Owner's Manual

Cover page of KENWOOD KAC-6402 Owner's Manual

Owner's Manual for KENWOOD KAC-6402, downloadable as a PDF file.

We also have service manual to this model.

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© B64-3045-00/00 (KV/EV)
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.
For your records
Record the serial number, found on the back of the unit, in the spaces
designated on the warranty card, and in the space provided below.
Refer to the model and serial numbers whenever you call upon your
KENWOOD dealer for information or service on the product.
Model KAC-6402
Serial number
KAC-6402
4/3/2 CHANNEL POWER AMPLIFIER
7 page 2-13
INSTRUCTION MANUAL
AMPLIFICATEUR DE PUISSANCE 4/3/2 CANAUX
7 page 14-25
MODE D'EMPLOI
AMPLIFICADOR DE POTENCIA DE 4/3/2 CANALES
7 página 26-37
MANUAL DE INSTRUCCIONES
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© B64-3045-00/00 (KV/EV)
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.
For your records
Record the serial number, found on the back of the unit, in the spaces
designated on the warranty card, and in the space provided below.
Refer to the model and serial numbers whenever you call upon your
KENWOOD dealer for information or service on the product.
Model KAC-6402
Serial number
KAC-6402
4/3/2 CHANNEL POWER AMPLIFIER
7 page 2-13
INSTRUCTION MANUAL
AMPLIFICATEUR DE PUISSANCE 4/3/2 CANAUX
7 page 14-25
MODE D'EMPLOI
AMPLIFICADOR DE POTENCIA DE 4/3/2 CANALES
7 página 26-37
MANUAL DE INSTRUCCIONES
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2 English
Safety precautions
2
WARNING
To prevent injury or fire, take the following
precautions:
· When extending the ignition, battery, or ground
wires, make sure to use automotive-grade wires
or other wires with a 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.
FCC WARNING
This equipment may generate or use radio
frequency energy. Changes or modifications to
this equipment may cause harmful interference
unless the modifications are expressly approved
in the instruction manual. The user could lose
the authority to operate this equipment if an
unauthorized change or modification is made.
2
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.
This Product is not installed by the manufacturer of a
vehicle on the production line, nor by the professional
importer of a vehicle into an EU Member State.
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.
2
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.
Protection function
There is a Protection function installed in the unit
to protect the unit and speakers from various
problems. When Protection operates, the indicator
informs you of the condition. (Refer to page 5)
Accessories
Part name
Number of
Items
External View
Self-tapping screws
(ø4 × 16 mm)
4
Terminal cover (Power
terminal)
1
Speaker level input
cable
1
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English
3
Installation
2
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.
· 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.
Installation board, etc.
(thickness : 15 mm or more)
Self-tapping screw
(ø4 × 16 mm)
330 mm
231 mm
Ø4.6
232
mm
227
mm
242
mm
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4 English
Controls / Indicator
5
3
2
1
4
(W)
30
40
20
10
5
1 FILTER switch (A.ch/B.ch)
This switch allows to apply high-pass or low-pass
filtering to the speaker outputs.
· HPF (High-Pass Filter) position:
The filter outputs the band of higher frequencies
than the frequency set with the FILTER
FREQUENCY control.
· OFF position:
The entire bandwidth is output without filtering.
· LPF (Low-Pass Filter) position:
The filter outputs the band of lower frequencies
than the frequency set with the FILTER
FREQUENCY control.
2 OPERATION switch (A.ch/B.ch)
This switch is used to select the operation mode
of the amplifier.
· STEREO position:
The amplifier can be used as a stereo amplifier.
· MONO (Lch) position:
Amplifies the signal input from the left side
only. Set to this position and make bridged
connections to use as a high-power monaural
amplifier. (The input right signal is not output.)
3 INPUT SELECTOR switch
This switch selects the input method of
the signals to be amplified by amplifiers A
and B.
· A B position:
Amplifies both of the signals input to
amplifiers A and B.
· A position:
Amplifies only signal input amplifier A with
both amplifiers A and B.
4 FILTER FREQUENCY control (A.ch/B.ch)
Sets the cutoff frequency when the FILTER switch
is set to LPF or HPF.
5 INPUT SENSITIVITY control (A.ch/B.ch)
Set this control according to the pre-output level
of the center unit connected with this unit, or
to the maximum power output of the genuine-
accessory car stereo.
The sensitivities of amplifiers A and B can be
adjusted independently regardless of the
position of the input selector switch.
Use the diagram on the right as a guide.
NOTE
For the pre-output level or the maximum power
output, refer to the <Specifications> in the
instruction manual of the center unit.
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English
5
6
6 Power indicator
When the power is turned on, the Power
indicator lights.
If the Power indicator does not light when the
power is turned on, the protection function
may be activated. Check whether there is any
indication of trouble.
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.
· When a ground wire of the center unit
(cassette receiver, CD receiver, etc.) or this unit
is not connected to a metal part serving as
an electrical ground passing electricity to the
battery's negative - terminal.

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