JVC KS-AX3002 Manual

JVC Modtager KS-AX3002

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KS-AX3004

KS-AX3002

POWER AMPLIFIER: INSTRUCTIONS

AMPLIFICATEUR DE PUISSANCE: MANUEL D’INSTRUCTIONS

LVT1908-001A

[J/E/U/US]

0508MNMMDWTKC

EN, FR

ENGLISH

 ank you for purchasing a JVC product. Please read all instructions carefully before operation, to ensure

your complete understanding and to obtain the best possible performance from the unit.

For safety....

• Do not raise the volume level too much, as this will block outside sounds, making driving dangerous.

• Stop the car before performing any complicated operations.

CAUTIONS AND NOTES

This unit is designed to operate on 12 V DC, NEGATIVE ground electrical systems.

• This unit uses BTL (Balanced Transformerless) ampliﬁ er circuitry, i.e., ﬂ oating ground system,

so comply with the following:

– Do not connect the “ ” terminals of the speakers to each other. ·

– Do not connect the “ ” terminals of the speakers to the metal body or chassis. ·

• Cover the unused leads with insulating tape to prevent them from short circuiting.

• When an extension lead is used, it should be as thick and short as possible; connect it ﬁ rmly

with insulating tape.

• Be sure to leave an appropriate space between the antenna (aerial) and the wires of this unit.

• When replacing the fuse, only use 25 A fuses.

• Do not let pebbles, sand or metallic objects get inside the unit.

• To keep the heat dissipation mechanism running effectively, wipe the accumulated dust off

periodically.

• Listening to the tape, radio, CD or digital audio player, etc. with the volume set at a high level for

a long period of time will exhaust the battery, while the engine is turned off or while the engine

is idling.

• This unit becomes very hot. Be careful not to touch the unit not only when using but after using.

DO NOT disassemble the unit since there are no user serviceable parts inside.

For Customer Use: Enter below the Model No. and Serial No. which are located on the top or

bottom of the cabinet. Retain this information for future reference.

POWER SUPPLY

Caution

To prevent short circuits while making connections, keep the battery’s negative terminal

disconnected.

1 Remote turn-on line (not provided)

a When you use a JVC car receiver with a remote lead, connect to the remote lead.

b When you use a car receiver without a remote lead, connect to the accessory circuit of

the car which is activated by the ignition switch. In this case, noise may occur when the car

receiver is turned on or off. To avoid this noise, do not turn on or off the car receiver itself.

You can turn it on or off along with the on/off operation of the ignition switch.

2 Ground lead (not provided)

3 Power cord (not provided)

• When using a power cord, add a 25 A fuse near the battery as shown.

• Connect to the battery’s “ ” terminal only after all the other connections have been made.ª

The proper lead connected to each POWER terminal is as follows:

– + B GND and : AWG 8 to AWG 4 (The cross section is about 8 mm2 to 21 mm2.)

– REM: AWG 18 to AWG 8 (The cross section is about 0.8 mm2 to 8 mm2.)

• Use ring terminals (not provided) for secure connection.

If you have any questions regarding the thickness of the power cord, etc., consult your nearest

“JVC IN-CAR ENTERTAINMENT” car audio dealer.

TERMINAL CONNECTIONS

When making terminal connections, properly ﬁ x each terminal with the

provided screw by turning it as illustrated.

• Use ring terminals (not provided) for secure connection.

Notes

• Make sure the screw is fixed in place to prevent disconnections.

• Avoid over-tightening as it may cause the damage to the screw or its

head slot.

SPEAKER SYSTEMS

This ampliﬁ er provides two types of speaker connections: Normal Mode and Bridge Mode

connections.

You can choose either type depending on the speakers equipped on your car.

Notes

• Be sure not to connect the “ ” terminals of the speakers to a common point. ·

• If the same lead is used for both left/right or front/rear speaker wirings, this unit cannot be used.

Always use the independent leads for each speaker. In this case, redo the wirings.

• Use the speakers with an impedance of 2 to 8 (4 to 8 : when used in Bridge Mode).Ω Ω Ω Ω

• Use the speakers which have sufficient capacity to the unit.

The proper lead connected to each SPEAKER OUTPUT terminal is AWG 18 to AWG 12 (The

cross section is about 0.8 mm2 to 3.3 mm2).

Model No.

INSTALLATION

The following illustration shows a typical installation. However, you should make adjustments

corresponding to your speciﬁ c car. If you have any questions or require information regarding

installation kits, consult your “JVC IN-CAR ENTERTAINMENT” car audio dealer or a company

supplying the kits.

Mount this unit on a ﬁ rm surface, such as in the trunk or under the front seat.

• Since heat is generated in the unit, do not mount it near inflammable objects. In addition,

mount it in an area that will not prevent the unit from dissipating the heat.

• Do not mount the unit in the places subject to heat: near a radiator, in a glove compartment

or in insulated areas such as under a car mat that will prevent the unit from dissipating heat.

• When mounting the unit under the front seat, make sure that adjusting the seat position will

not catch any wire of the unit.

When mounting this unit, be sure to use the provided screws.

• If any other screws are used, there is a risk of loosening the unit or damaging the parts under

the car floor.

• Before drilling holes in the trunk to install the unit, make sure that there is a sufficient space

under the trunk so that you do not drill holes in the fuel tank, etc.

Serial No.

Under the front seat

Onto the trunk floor

Provided screw

φ 4 × 20 mm (13/ in.)16

Drilled hole

25 A fuse

To metallic body or chassis

JVC car receiver, etc.

Ignition switch

Car battery

(To an accessory terminal)

* Not provided

KS-AX3004 KS-AX3002

Remote turn-on line

KS-AX3004

4-speaker system—Normal Mode

2-speaker system plus subwoofer—Bridge Mode

2-speaker system—Bridge Mode

SPEAKER CONNECTIONS

Connection varies depending on the number of the speakers used in your car. Select the

appropriate connection referring to the following diagrams.

Notes

• Securely connect all the parts. If the connections are loose, due to contact resistance etc., heat

will break out and may cause an accident.

• Run the connection leads under the car mats to prevent accidental disconnections.

a When your receiver is equipped with line output, connect the line output (through the

receiver) to the INPUT jacks on this unit.

b When your receiver is NOT equipped with line output, connect the provided speaker input

connector (through the receiver) to the HIGH INPUT terminal on this unit.

• Connect each lead of the speaker input connector to a speaker positive lead or *chassis 1 of

the receiver.

• Cover the terminals of unused speaker negative leads of the receiver with insulating tape to

prevent short circuits.

KS-AX3002

2-speaker system—Normal Mode

2-speaker system (2 ampliﬁ ers)—Bridge Mode

Subwoofer system—Bridge Mode

2 RCA pin cords (not provided)

FRONT FRONTREAR REAR

REAR

FRONTFRONT

FRONT

*2*2

Front speaker

(Left/Right)

Rear speaker (Left/Right)

Line out

(Rear)

Line out

(Front)

Filter switches

FRONT FRONTREAR REAR

REAR

FRONTFRONT

FRONT

*2*2

JVC car receiver, etc.

Front speaker

(Left/Right)

Subwoofer

Line out

(Rear) or

Subwoofer

out

Line out

(Front)

Filter switches

JVC car receiver, etc.

b Speaker input connector

Connector lead To Receiver

Å Gray "FRONT RIGHT (+)" =Front right (+) lead

ı White "FRONT LEFT (+)" =Front left (+) lead

Ç Black "RECEIVER GND" =Chassis*1

Î Purple "REAR RIGHT (+)" =Rear right (+) lead

‰ Green "REAR LEFT (+)" =Rear left (+) lead

FRONT FRONTREAR REAR

REAR

FRONTFRONT

FRONT

b Speaker input connector

Connector lead To Receiver

Å Gray "FRONT RIGHT (+)" =Left (+) lead

ı White "FRONT LEFT (+)"

Ç Black "RECEIVER GND" =Chassis*1

Î Purple "REAR RIGHT (+)" =Right (+) lead

‰ Green "REAR LEFT (+)"

Line out

JVC car receiver, etc.

Front speaker

(Left/Right)

Left

speaker

Right

speaker

b Speaker input connector

Connector lead To Receiver

Å White "LEFT (+)" =Left (+) lead

ı Black "RECEIVER GND" =Chassis*1

Ç Gray "RIGHT (+)" =Right (+) lead

Line out

JVC car receiver, etc.

Left speaker

Right speaker

Filter switches

Filter switch

b Speaker input connector

Connector lead To Receiver

Å White "LEFT (+)" =Left (+) lead

ı Black "RECEIVER GND" =Chassis*1

Ç Gray "RIGHT (+)" =Right (+) lead

Subwoofer

b Speaker input connector

Connector lead To Receiver

Å White "LEFT (+)" =Right (+) lead

ı Black "RECEIVER GND" =Chassis*1

Ç Gray "RIGHT (+)" =Right (+) lead

b Speaker input connector

Connector lead To Receiver

Å White "LEFT (+)" =Left (+) lead

ı Black "RECEIVER GND" =Chassis*1

Ç Gray "RIGHT (+)" =Left (+) lead

JVC car receiver, etc.

Line out (Rear) or

Subwoofer out

b Speaker input connector

Connector lead To Receiver

Å Gray "FRONT RIGHT (+)" =Front right (+) lead

ı White "FRONT LEFT (+)" =Front left (+) lead

Ç Black "RECEIVER GND" =Chassis*1

Î Purple "REAR RIGHT (+)" =Rear right (+) lead

‰ Green "REAR LEFT (+)" =Rear left (+) lead

RECEIVER

GND JVC car receiver, etc.

Black lead of the speaker input connector

Rear ground terminal

*1 Example:

Produkt Specifikationer

Mærke:	JVC
Kategori:	Modtager
Model:	KS-AX3002
Produktfarve:	Sort
Frekvensområde:	5 - 50000 Hz
Impedens:	2 ohm (Ω)
klirfaktor (THD):	0.04 %
Antal kanaler:	2 kanaler
Signal/støjforhold:	76 dB
Udgangseffekt beskrivelse:	370