User manual JVC KSAX3500E-KS-AX3500 INSTRUCTION MANUAL

[. . . ] · To keep the heat dissipation mechanism running effectively, wipe the accumulated dust off periodically. · 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. [. . . ] 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. i 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. 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 filter) switch. You can use the following terminals for a subwoofer system. KS-AX3500: REAR SPEAKER OUTPUT KS-AX3300: SPEAKER OUTPUT (For HPF switch--only for KS-AX3500) Set to this position when you want to turn on the HPF (High-pass filter) switch. The low frequency signals are not applied to the left/ right speaker when a subwoofer is connected. i 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. . . Properly fix the terminal with the screw provided by turning it in the direction as illustrated. SPEAKER SYSTEMS This amplifier provides two types of speaker connections: Normal mode and Bridge mode. You can choose either type of connections depending on the speakers configuration equipped on your car. Make sure to comply with the following notes: · 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. · Use the speakers with an impedance of 2 to 8 (4 to 8 : when used in Bridge mode). · Use the speakers which have sufficient power to the unit. Note 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. 1 SPEAKER CONNECTIONS Connection varies depending on the number of the speakers used in your car. Select the appropiate connection referring to the diagrams below. Before connecting: Securely connect all the parts. If the connections are loose, due to contact resistance etc. , heat will break out and may cause an accident. Secure and cover the cords with insulating tape and run them under the car mats. · Depending on the manufacturer and model of the car, speaker wiring may have been finished when purchased. [. . . ] · Confirm if the ground lead is connected securely to a metal part of the car. · Confirm if the negative speaker leads are touching the car chassis. · Confirm if the noise originates in the receiver. · Replace the plugs or use plugs with load resistors. [. . . ]