Kenwood KAC-M1804 User manual

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.
• 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.
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 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 detects a low impedance at the speaker
connections.
7Wiring
• 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.
• 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.
7Speaker selection
• Using speakers with smaller input ratings than the
amplifier’s output power would result in smoke
generation or equipment failure.
• Use speakers that have an impedance of 4Ω or greater.
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>
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-M1804 Serial number
KAC-M1804
COMPACT 4 CHANNEL DIGITAL AMPLIFIER
INSTRUCTION MANUAL
Combined impedance
CANADA KENWOOD ELECTRONICS CANADA INC.
KENWOOD WARRANTY
KENWOOD ELECTRONICS CANADA INC. (hereinafter called
“KENWOOD”), gives the following written warranty to the
originalcustomerofeachnewKenwood productdistributedin
Canadaby KENWOOD and purchased from a dealer authorized
by KENWOOD.
KENWOOD warrants that each new Kenwood product, under
normal use, is free from any defects, subject to the terms and
conditions set forth below. If a defect should occur within the
warranty period, repairs will be made free of charge for parts
and labour when such defects are determined by KENWOOD
or its’ authorized service centres to be attributable to faulty
materials or workmanship at time of manufacture. Please
contact KENWOOD to confirm if a dealer or service centre is
authorized by KENWOOD.
WARRANTY PERIOD
This Kenwood product is warranted for parts and labour for a
period of one (1) year from the date of original purchase, lease
or rental, except for products which are used in a professional
or commercial application, which are warranted for a period
of ninety (90) days for parts and labour and are subject to the
terms and conditions of the warranty.
WARRANTY EXCLUSIONS
This warranty excludes:
(a) Products purchased in a foreign country or purchased in
Canada and taken to a foreign country.
(b) Products purchased from a dealer not authorized by
KENWOOD.
(c) Products with the serial number defaced, altered or
missing.
(d) Periodic check-ups which do not disclose any defects
covered by this warranty.
(e) Defects resulting from disaster, accident, abuse, misuse,
lightning, power surges, neglect or lack of periodic
maintenance,unauthorizedmodificationorfailuretofollow
instructions in the owner’s manual.
(f) Defects or damage as a result of repairs performed by a
person or party not authorized by KENWOOD.
(g) Defects resulting from the use of parts or devices that do
not conform to KENWOOD specifications.
(h) Damage or deterioration occurring to any exterior finishes,
cosmetic parts, tape heads, adaptors, antennas, cables,
tapes, discs or faults or damage caused by defective or
leaking batteries.
(i) Defects or damageoccurringduring shipping(claimsshould
be presented to the shipping company).
(j) Product voltage and /or line frequency conversions.
(k) Product installation or removal charges.
TO OBTAIN WARRANTY SERVICE
ShouldyourKenwood product requirewarrantyservice,deliver
it to any authorized KENWOOD service centre and present
the original copy of your bill of sale and this warranty card
as proof of warranty, or send your product fully insured and
freight prepaid to the nearest authorized KENWOOD service
centre. To avoid possible shipping damage, make sure the
product is properly packed. Include a copy of your original
bill of sale and this warranty card as proof of warranty along
with your name, home and /or work telephone number(s),
a complete return address and a detailed description of the
fault(s). Products repaired within warranty will be returned
freight prepaid to destinations within Canada. The customer
is responsible for all freight and related costs for the return of
product(s) to destinations outside Canada.
ENTIRE WARRANTY
This warranty constitutes the entire written warranty given
by KENWOOD. No person, party, dealer or service centre
or their agents or employees are authorized to extend or
enlarge this warranty on behalf of KENWOOD by any written
or verbal statement or advertisement or promotion, including
any extended warranty program or plan that may be offered
by the dealer or service centre, unless approved in writing
by KENWOOD.
DISCLAIMER
KENWOOD disclaims any responsibility for loss of time or use
oftheproductoranyotherindirect,incidentalor consequential
damage to other products or goods, inconvenience or
commercial loss.
NOTICE TO CONSUMER
Theprovisionscontained inthiswritten warranty arenotintended
to limit, modify, take away, disclaim or exclude any warranties
or rights you may have which are set forth in any applicable
provincial or federal laws or legislation.
IMPORTANT
This warranty card by itself is not considered by KENWOOD as
a valid proof of purchase. When applying for warranty repairs,
you must present the original copy of your bill of sale and this
warrantycardas proofofwarranty,sowerecommend that theybe
kept in a safe place, should they be required in the future.
U.S.A. KENWOOD USA CORPORATION
This warranty will be honored only in the U.S.A.
KENWOOD LIMITED WARRANTY
FOR CAR STEREO COMPONENTS
HOW LONG IS THE WARRANTY
Kenwood U.S.A. Corporation (“Kenwood”) warrants this
product for a period of one (1) year from the date of original
purchase.
WHAT IS COVERED AND WHAT IS
NOT COVERED
Except as specified below, this warranty covers all defects in
materialandworkmanship in Kenwood carstereocomponents.
The following are not covered by the warranty:
1. Any product which is not distributed in the U.S.A. by
Kenwood or which is not purchased in the U.S.A. from an
authorized Kenwood car stereo dealer or an automobile
dealer, unless the product is purchased through the U.S.A
Military Exchange Service.
2. Any product on which the serial number has been defaced,
modified or removed.
3. Damage, deterioration or malfunction resulting from:
a. Any shipment of the product (claims must be presented
to the carrier).
b. Installation or removal of the product.
c. Accident, acts of nature, misuse, abuse, neglect,
unauthorized product modification or failure to follow
instructions supplied with the product.
d. Repair or attempted repair by anyone not authorized
by Kenwood.
e. Any other cause which does not relate to a product
defect.
WHO IS PROTECTED
This warranty is enforceable only by the original purchaser.
WHAT WE WILL PAY FOR
We will pay for all labor and material expenses for covered
items. Payment of shipping charges is discussed in the next
section of this warranty.
HOW TO OBTAIN WARRANTY
SERVICE
If your KENWOOD product ever needs service:
1. Take or ship it to any KENWOOD Authorized Service Center
in the U.S.A. along with & complete description of the
problem.
2. Althoughyoumust payany shippingcharges ifit isnecessary
toshipthe product forwarrantyservice,wewill pay thereturn
shipping charges if the repairs are covered by the warranty
within the United States.
3. Whenever your units are taken or sent for warranty service,
you must include a copy of the original dated sales receipt
as proof of warranty coverage.
LIMITATION OF IMPLIED
WARRANTIES
ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, ARE LIMITED IN DURATION TO THE LENGTH OF
THIS WARRANTY.
EXCLUSION OF DAMAGES
KENWOOD’S LIABILITY FOR ANY DEFECTIVE PRODUCT IS
LIMITEDTO THEREPAIRORREPLACEMENTOF THEPRODUCT
AT OUR OPTION. KENWOOD SHALL NOT BE LIABLE FOR:
1. INSTALLATION OR REMOVAL CHARGES, DAMAGE
TO OTHER PROPERTY CAUSED BY ANY DEFECTS IN
KENWOOD CAR STEREO COMPONENTS, DAMAGES
BASED UPON INCONVENIENCE, LOSS OF USE OF THE
PRODUCT; OR
2. ANY OTHER DAMAGES, WHETHER INCIDENTAL,
CONSEQUENTIAL OR OTHERWISE.
SOME STATES DO NOT ALLOW LIMITATIONS ON HOW
LONG AN IMPLIED WARRANTY LASTS AND/OR DO NOT
ALLOWTHEEXCLUSIONOR LIMITATIONOF INCIDENTALOR
CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS
AND EXCLUSIONS MAY NOT APPLY TO YOU.
This warranty gives you specific legal rights, and you may also
have other rights which vary from state to state.
Ifaproblem developsduringor after theLimitedWarranty Period,
or if you have any questions regarding the operation of the
product,youshould contact yourKENWOODAuthorizedDealer
orAuthorizedServiceCenter.
Units purchased through the U.S.A. military exchange service
overseas may be serviced under warranty in the continental
U.S.A., subject to the following conditions.
1) The original warranty is in effect.
2) Proof of purchase is provided to the servicer.
WARRANTY FOR MILITARY MARKET
Kenwood corporation is proud of the quality and workmanship
of its audio equipment. This unit has been properly designed,
tested and inspected before it was shipped to you. If properly
installedandoperated inaccordancewithinstructions furnished,
it should give you an optimum reliable performance.
WARRANTY PERIOD
This product is warranted for a period of (1) year from the date
of the original purchase.
SCOPE OF WARRANTY
Except as specified below, this warranty covers all defects in
materials and workmanship of the Kenwood brand products.
During the warranty period, any authorized Kenwood Service
Center in the military market listed in the back of this warranty
card will provide you free-of-charge both parts and labor
required to correct any defect in materials or workmanship.
The following are not covered by this warranty.
1. Voltage conversions.
2. Periodiccheck-upswhich donot discloseany defectcovered
by the warranty.
3. Cabinets, grilles, other exterior finishes, belts, tape heads,
and other non-durable parts and accessories.
4. Units onwhich theserial number hasbeen effaced,modified
or removed.
5. Installation and/or removal charges.
6. Damaged magnetic tapes.
7. House call charges for any repairs.
8. Shipping or delivery charges to or from an authorized
Kenwood Service Center.
9. Thiswarrantywill notcover anyfailure thatis dueto anyof the
followingconditionsin accordance withthevisual inspection
of the authorized Kenwood Service Center:
* Improper maintenance or repair, including the installation of
parts or accessories that do not conform to the quality and
specifications of the original parts.
* Misuse, abuse, neglect, unauthorized product modification
or failure to follow instructions contained in the Owner’s
Manual.
* Accidental or intentional damages.
* Repairs or attempted repairs by an unauthorized agency.
(All repairs must be performed at an authorized Kenwood
Service Center.)
* Damages or deteriorations caused during shipment (Claims
must be presented to the carrier).
* Damages or deteriorations resulting from removal and/
or replacement.
PURCHASER’S RESPONSIBILITIES
As the purchased of a new Kenwood brand product, you are
requested to do the following in order to obtain Kenwood
warranty service.
1. Retainyoursales sliporotherevidenceof purchaseforproving
your eligibility for requesting Kenwood warranty service.
2. Make your unit available to an authorized Kenwood Service
Center in the military market for inspection and approved
warranty service, or ship your unit in its original carton box
or equivalent, fully insured and shipping charges prepaid,
to the authorized Kenwood Service Center.
LIMITATION OF IMPLIED
WARRANTIES
Any and all implied warranties, including warranties of
merchantability and fitness for a particular purpose, shall be
limited in duration to the length of this warranty.
EXCLUSION OF CERTAIN DAMAGES
KENWOOD’s liability for any defective product is limited to
the repair or replacement of said product, at our potion, and
shall not include damages of any kind, whether incidental,
consequential or otherwise, expect to the extent prohibited
by applicable law.
MILITARY
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L
L
R
R
A-2 B-2
Ground wire (Black)
L
L
R
R
L
L
R
R
FRONT L
Type A: RCA INPUT connection
Type B: SPEAKER INPUT connection
FRONT R
REAR L
REAR R
White
White/Black
Gray
Gray/Black
Green
Green/Black
Purple
Purple/Black
Power control wire (Blue)
(Azul) AFTER MARKET HEAD UNIT only
Car fuse box
Boîte de fusible
Caja de fusibles
del automóvil
Battery
Batterie
Batería
FACTORY INSTALLED
HEAD UNIT
SPEAKER OUTPUT
AFTER MARKET
HEAD UNIT
FRONT
REAR
LR
A-1 B-1
Battery wire (Yellow)
BATT
ACC
* 1
Connection
Troubleshooting Guide
What might appear 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.
PROBLEM POSSIBLE CAUSE SOLUTION
No sound.
(No sound from one
side.)
(Blown fuse.)
• Input (or output) cables are disconnected.
• Protection circuit may be activated.
• Volume is too high.
• The speaker cord is shorted.
• Connect the input (or output) cables.
• Check connections by referring to
<Protection function>.
• Replace the fuse and use lower volume.
• After check the speaker cord and fixing the
cause of the short, replace the fuse.
The sound quality is
bad.
(The sound is distorted.)
• The speakers wire are connected with
wrong ª/·polarity.
• A speaker wire is pinched by a screw in
the car body.
• Connect them properly checking the ª/·
of the terminals and wires well.
• Connect the speaker wire again so that it is
not pinched by anything.
WARNING Remove the ignition key and disconnect the negative ·terminal
of the battery to prevent short circuits.
WARNING
Particular attention must be given to making good
electrical contact at the amplifier-output and speaker
terminals.
Poor or loose connections can cause sparking or
burning at the terminals because of the very high power
that the amplifier can deliver.
CAUTION
• If sound is not output normally, immediately turn power
off and check connections.
• Be sure to turn the power off before changing the setting
of any switch.
• If the fuse blows, check wires for shorts, then replace the
fuse with one of the same rating.
• Check that no unconnected wires or connectors are
touching the car body. Do not remove caps from
unconnected wires or connectors to prevent short
circuits.
• Connect the speaker wires to appropriate speaker
connectors separately. Sharing the negative wire of the
speaker or grounding speaker wires to the metal body of
the car can cause this unit to fail.
• After installation, check that the brake lamps, turn signal
lamps and windshield wipers work properly.
Installation
7 Accessories
1DC cable / Câble CC / Cable CC 1
2RCA cable / Câble RCA / Cable RCA 2
3350 mm
(13-3/4) Wire band / Serre-câble / Atadura de cables 2
4100 mm
(3-15/16) Wire band / Serre-câble / Atadura de cables 2
5ø 4 x 16 mm Self-tapping screws / Vis taraudeuses / Tornillo autorroscantes 4
Installation board, etc. (thickness : 15 mm or more)
Tableau d’installation, etc. (épaisseur: 15 mm ou plus)
Tablero de instalación, etc. (grosor: 15 mm o más)
5Parts included
Pieces comprises
Partes incluidas
Example A: using the screws Example B: using the wire bands
2Parts included
1Parts included
4Parts included
Pieces comprises
Partes incluidas
100 mm (3-15/16)
7Installation procedure
Read the instruction manual well to select the proper connection.
1. Remove the ignition key and disconnect the negative · terminal
of the battery to prevent short circuits.
2. There are two options:
* Refer to “Connection”as below.
Type A: RCA INPUT connection
A-1 Connect the battery wire.
A-2 Connect the ground wire to chassis ground of vehicle.
A-3 Connect the power control wire.
A-4 Connect the speakers.
A-5 Connect the DC cable into the connector at KAC-M1804.
A-6 Connect the RCA cable.
Type B: SPEAKER INPUT connection
B-1 Connect the battery wire.
B-2 Connect the ground wire to chassis ground of vehicle.
B-3 Connect the speakers.
B-4 Connect the DC cable into the connector at KAC-M1804.
B-5 Cut off the RCA cable, then connect the correct corresponding
speaker output from the HEAD UNIT directly.
3. Attach the unit.
4. Connect the negative · terminal of the battery.
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 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 the unit on 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.
Fuse (15 A)
NOTE
If you can’t find the specified capacity fuse at your store etc.,
consult your Kenwood dealer.
152 mm (16”)
140 mm (5-1/2”)
90 mm (3-9/16”) 65 mm (2-9/16”)
34 mm
(1-5/16”)
&
Prevent a short circuit !
*1
*2
*2
*2
The output from the FACTORY INSTALLED HEAD UNIT up to 50W can be input. The power is turned on and off as the
unit detects input signal (SIGNAL SENSING TURN-ON). Therefore it is not necessary to connect the power control wire.
CEA-2006
RMS Watts per channel @ 4 ohms, ≤ 1% THD+N.........................45 W × 4
Signal to noise ratio (Reference: 1Watt into 4 ohms)...........74 dBA
Specifications
Specifications subject to change without notice.
Audio section
Max power output...............................................................................400 W
Speaker impedance..................................................................................4 Ω
Frequency response (+0, –1 dB)............................ 20 Hz – 20 kHz
Signal to noise ratio..............................................................................90 dB
Input impedance...................................................................................10 kΩ
General
Operating voltage................................ 14.4 V (11 – 16 V allowable)
Current consumption............................................................................15 A
Dimensions (W × H × D)......................................140 × 34 × 90 mm
5-1/2 × 1-5/16 × 3-9/16 inch
Weight.......................................................................................0.5 kg (1.1 lbs)
A-6
B-5
A-3
A-5 B-4
A-4 B-3
3Parts included
Pieces comprises
Partes incluidas
350 mm (13-3/4)
KAC-M1804KEnFrEs.indd2KAC-M1804KEnFrEs.indd2 2014/01/2314:442014/01/2314:44