User manual JVC 4VR-5446 schematic

[. . . ] X Y Bracket (I) Bracket (I) Spacer Spacer Bracket (L) Bracket (L) 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) amplifier circuitry, i. e. , floating 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. [. . . ] Line Out (Rear) or Subwoofer Out JVC car receiver, etc. Subwoofer Subwoofer Subwoofer Subwoofer Note Use subwoofers with an impedance of 4 Ω to 8 Ω. 5-speaker system plus subwoofer—5. 1-channel (3 amplifiers) Note Incoming signals are emitted through the PRE OUT jacks. *1 RCA pin cords (not included with this unit) *2 Be sure to connect the line output from the receiver to the left (L/MONO) jack on this unit. ARSENAL amplifier, etc. (purchased separately) Front Speaker Rear Speaker (left/right) (left/right) Line Out (Front) Line Out (Rear) Subwoofer Out JVC car receiver, etc. (purchased separately) Center Speaker 2 EN_4VR-5446[J]4. indd 2 07. 12. 10 7:47:01 PM CONTROLS To operate the following controls, detach the control cover. Attach it again after operation. TROUBLESHOOTING For more details, consult your JVC car audio dealer. • Confirm the connections for the power supply (see “POWER SUPPLY” on page 1). (Clipping*) • Lower the input level with the Input LEVEL controller until the lamp lights in violet a few times. * It means that the amplifier circuits are overloaded and the sound may distort due to too much input from the car receiver. • Confirm the connections for the power supply (see “POWER SUPPLY” on page 1). • Confirm the speaker wirings (See “SPEAKER CONNECTIONS” on page 2). Control cover Status lamp The lamp normally lights in blue while the unit is turned on. • 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. (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. 1 Remote turn-on line (not included with this unit) a When you use a JVC car receiver with a remote lead, connect to the remote lead. b When you connect 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. You can turn on or off the car receiver along with the on/off operation of the ignition switch. 2 Ground lead (not included with this unit) 3 Power cord (not included with this unit) • When using a power cord, be sure to add a 40 A fuse near the battery as shown. • Connect to the battery’s “ª” terminal only after all the other connections have been made. Note If the Status lamp (see “CONTROLS” on page 3) lights in red, it indicates incorrect speaker wiring or connections. [. . . ] (purchased separately) Front Speaker Rear Speaker (left/right) (left/right) Line Out (Front) Line Out (Rear) Subwoofer Out JVC car receiver, etc. (purchased separately) Center Speaker 2 EN_4VR-5446[EU]2. indd 2 07. 12. 10 8:12:03 PM CONTROLS To operate the following controls, detach the control cover. Attach it again after operation. TROUBLESHOOTING For more details, consult your “JVC IN-CAR ENTERTAINMENT” car audio dealer. • Confirm the connections for the power supply (see “POWER SUPPLY” on page 1). [. . . ]