User manual JVC 4ED-1205 service manual

[. . . ] • 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. 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. Fuse* To metallic body or chassis (To an accessory terminal) Remote turn-on line Ignition switch Car battery JVC car receiver, etc. Caution To prevent short circuits while making connections, keep the battery’s negative terminal disconnected. [. . . ] • 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. Drilled hole SPEAKER SYSTEMS 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. • 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 sufficient capacity to the unit. The proper lead connected to each SPEAKER OUTPUT terminal is as follows. KS-AX3104/4ED-1205: AWG 18 to AWG 12 (The cross section is about 0. 8 mm2 to 3. 3 mm2). KS-AX3101D: AWG 18 to AWG 8 (The cross section is about 0. 8 mm2 to 8 mm2). SAFETY INSTRUCTIONS “SOME DOS AND DON’TS ON THE SAFE USE OF EQUIPMENT” This equipment has been designed and manufactured to meet international safety standards but, like any electrical equipment, care must be taken if you are to obtain the best results and safety is to be assured. DO read the operating instructions before you attempt to use the equipment. Notice: The sign Pb below the symbol for batteries indicates that this battery contains lead. Battery 1 KSAX310_EN_GE_NL_FR_UK_AR. indd 1 11/3/10 2:40:29 PM SPEAKER CONNECTIONS Connection varies depending on the number of the speakers used in your car. Select the appropriate connection referring to the following diagrams. 4ED-1205 2-speaker system—Normal Mode • Use the speakers with an impedance of 2 Ω to 8 Ω. 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. Å When your receiver is equipped with line output. ı When your receiver is NOT equipped with line output. KS-AX3104 4ED-1205 KS-AX3101D Å JVC car receiver, etc. Line out ı Speaker input connector. Connector lead a White "LEFT (+)" b Black "RECEIVER GND" To Receiver = Left (+) lead = Chassis*1 = Right (+) lead *2 INPUT HIGH INPUT L/MONO LEVEL c Gray "RIGHT (+)" CROSSOVER LPF OFF HPF FRONT REAR MIN MAX R • 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. *1 Example: connecting to the ground Rear ground terminal Black lead of the speaker input connector RECEIVER GND 2-speaker system plus subwoofer • Use the speakers with an impedance of 2 Ω to 8 Ω. Line out (Rear) or Subwoofer out Å JVC car receiver, etc. [. . . ] • Leave the unit turned off to cool it down if it heats up abnormally. Å JVC car receiver, etc. *2 *2 JVC amplifier, etc. (Purchased separately) Line out (Center) *2 Subwoofer out Line out (Rear) ı Speaker input connector. *2 PRE OUT L INPUT HIGH INPUT L/MONO Front Speaker Rear Speaker No sound is heard. • Confirm the connections for the power supply (see "POWER SUPPLY" on page 1). • Connect the RCA pin cords to the INPUT jacks, or the speaker input connector to the HIGH INPUT terminal. • Confirm the speaker wirings and the position of the CROSSOVER filter switch (See “SPEAKER CONNECTIONS” on page 2). Connector lead a White "LEFT (+)" b Black "RECEIVER GND" c Gray "RIGHT (+)" To Receiver = Left (+) lead = Chassis*1 = Left (+) lead R R Alternator noise is heard. • Keep the leads of the POWER terminals away from the RCA pin cords. [. . . ]