JVC KS AX3500 User Manual

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KS AX3500  
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KS AX3300  
POWER AMPLIFIER: INSTRUCTIONS  
1204MNMMDWASH  
EN, FR  
© 2004 Victor Company of Japan, Limited  
AMPLIFICATEUR DE PUISSANCE: MANUEL D’INSTRUCTIONS  
LVT1329-001A  
[J/E/U]  
POWER SUPPLY  
ENGLISH  
KS-AX3500  
KS-AX3300  
Thank 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  
CAUTION  
This unit is designed to operate on 12 V DC, NEGATIVE ground electrical systems.  
This unit uses BTL (Balanced Trans-formerless) amplifier circuitry, i.e., floating ground system,  
so please comply with the following:  
To prevent short circuits while making connections, keep the battery’s negative terminal  
disconnected.  
When using a power cord, be sure to place the 30 A fuse near the battery as shown.  
Connect the lead wire (purchased separately) through which power is supplied directly to the  
batterys ªterminal only after all the other connections have been made.  
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 terminals 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 rmly  
with insulating tape.  
The lead wire connected to the + B terminal of this unit should have a cross-section of more  
than 5 mm2. Be sure to use a ring terminal (optional) for secure connection.  
Be sure to leave an appropriate space between the antenna (aerial) and the wires of this unit.  
When replacing the fuse, only use a 25 A fuse for KS-AX3500 and 30 A fuse for KS-AX3300.  
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.  
If you have any questions regarding the thickness of the power cord, etc., consult your nearest  
JVC IN-CAR ENTERTAINMENTcar audio dealer.  
When connecting a unit 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 on or  
off the car receiver along with the on/off operation of the ignition switch.  
Listening to the tape, radio, CD or MD, etc. with the volume on loud for a long period of time will  
exhaust the battery, while the engine is turned off or while the engine is idling.  
DO NOT disassemble the units since there are no user serviceable parts inside.  
If you use JVC car receiver with a remote lead (), connect to the REM terminal on this unit.  
For Customer Use:  
Enter below the Model No. and Serial No. which  
If the POWER/PROTECTOR lamp lights in red, it indicates incorrect speaker wiring or  
connections. In normal status, the POWER/PROTECTOR lamp lights in green. Make sure to  
correct speaker wiring and other connections.  
Model No.  
are located on the top or bottom of the cabinet.  
Serial No.  
Retain this information for future reference.  
INSTALLATION  
CONTROLS  
The following illustration shows a typical installation. However, you should make adjustments  
corresponding to your specific 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 kits.  
KS-AX3500  
KS-AX3300  
Å Crossover filter switch  
OFF: Normally, set to this position. (Preset to this position at the factory.)  
ON: (For LPF switch) Set to this position when you want to turn on the LPF (Low-pass  
lter) switch.You can use the following terminals for a subwoofer  
system.  
Å Mount on a firm surface, such as in the trunk room or under the front seat.  
Since heat is generated in this unit, do not mount near inflammable objects. In addition,  
mount in an area that will not prevent the unit from dissipating heat.  
Do not mount the unit in the places subject to heat such as 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.  
KS-AX3500: REAR SPEAKER OUTPUT  
KS-AX3300: SPEAKER OUTPUT  
(For HPF switchonly for KS-AX3500)  
Set to this position when you want to turn on the HPF (High-pass  
lter) switch. The low frequency signals are not applied to the left/  
right speaker when a subwoofer is connected.  
ı When mounting this unit, be sure to use the screws provided. If any other screws are used,  
there is a risk of loosening the unit or damaging parts inside it.  
ı Input LEVEL controller  
The input level can be adjusted with this control when this unit is connected to other source  
equipments. Turn it in the clockwise direction when the output level of the car audio seems low.  
TERMINAL CONNECTIONS  
When making the terminal connections…  
SPEAKER SYSTEMS  
Properly fix the terminal with the screw provided by turning it in the  
direction as illustrated.  
This amplier provides two types of speaker connections: Normal mode and Bridge mode.You  
can choose either type of connections depending on the speakers conguration equipped on  
your car.  
Note  
Make sure to comply with the following notes:  
When you tighten the screw, make sure that the screw is securely fixed in  
place to prevent disconnection of the terminal. Avoid over-tightening as it  
may cause damage to the screw or its head slot.  
Be sure not to connect the ·terminals of the speakers to a common point.  
If the ground wire is common to both left/right and front/rear speaker wirings, this unit cannot be  
used. Always use the independent lead wires for the speakers to be used. In this case, redo the  
wirings.  
Use the speakers with an impedance of 2 Ω to 8 Ω (4 Ω to 8 Ω: when used in Bridge mode).  
Use the speakers which have sufcient power to the unit.  
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