JVC KS-AR7501D Instructions - Page 3

CONTROLS Hex screw Hex wrench (3 mm) Control cover To operate the following controls, remove the hex screws with a provided hex wrench (3 mm) and detach the control cover. Attach it again after your operation. TROUBLESHOOTING For more details, consult your JVC car audio dealer. The POWER/PROTECTOR lamp does not light. • Change the fuses if the current one is blown. • Connect the ground lead securely to a metal part of the car. • Turn on the equipment connected to this unit. • Use a relay if your system employs too many amplifiers. • Confirm the battery voltage (11 V to 16 V). The POWER/PROTECTOR lamp lights in red and/or the unit heats up abnormally. • Use the speakers of suitable impedance. • Correct the speaker wirings if they are short-circuited. • Leave the unit turned off for a while to cool it down. No sound is heard. • Confirm the connections for power supply (see "POWER SUPPLY" on page 1). • Connect RCA pin cords to the INPUT jacks, or the speaker input connector to the HIGH INPUT terminal. Alternator noise is heard. • Keep the power cords away from the RCA pin cords. • Keep the RCA pin cords away from other electrical cables in the car. • Connect the ground lead securely to a metal part of the car. • Make sure the negative speaker leads do not touch the car chassis. • Replace the plugs or use plugs with load resistors. • Connect a bypass capacitor across the accessory switches (horn, fan, etc.). Noise is made when you connect the unit to an AM tuner. • Move the speaker and power cords away from the antenna lead. SPECIFICATIONS Power Output Signal-to-Noise Ratio KS-AR7501D: 400 W RMS x 1 channels at 4 Ω and ≤ 1% THD + N KS-AR7001: 250 W RMS x 1 channels at 4 Ω and ≤ 1% THD + N 60 dBA (reference: 1 W into 4 Ω) Input LEVEL controller The input level can be adjusted with this control when this unit is connected to other source equipment. Adjust the level while listening to the sound. This control is preset to MIN when the unit is shipped. LPF (Low-Pass Filter) controller Adjust the cutoff frequency (the Low-Pass Filter transmits frequencies lower than the cutoff frequency) within the range of 50 Hz to 300 Hz. Adjust the level while listening to the sound. This control is preset to 50 Hz when the unit is shipped. PHASE switch Select either normal (NOM) or reverse (REV), which reproduce a better sound. This switch is preset to NOM when the unit is shipped. BASS BOOST controller Turning this boosts the 45 Hz frequency within the range of 0 dB to +18 dB. Adjust the level while listening to the sound. This control is preset to MIN when the unit is shipped. SUBSONIC filter controller Adjust the cutoff frequency (the subsonic filter rejects frequencies lower than the cutoff frequency) within the range of 20 Hz to 50 Hz. This control is preset to 20 Hz when the unit is shipped. POWER/PROTECTOR lamp The lamp lights in green while the unit is turned on. When the lamp does not light or lights in red with the unit on, it indicates there may be any trouble (see "TROUBLESHOOTING"). Power lndicator The blue lamp illuminates while the unit is turned on. Maximum Power Output Load Impedance Frequency Response Input Sensitivity/Impedance Distortion Power Requirement Grounding system Dimensions (W×H×D) Mass (approx.) Supplied Accessories KS-AR7501D: 1200 W KS-AR7001: 600 W KS-AR7501D: 4 Ω (1 Ω to 8 Ω allowance) KS-AR7001: 4 Ω (2 Ω to 8 Ω allowance) 20 Hz to 300 Hz* (+0, -3 dB) * Subsonic filter cuts off extremely low frequency signals. ( The cutoff frequency is adjustable within the range of 20 Hz to 50 Hz.) 2 V/45 kΩ (0.3 V to 6 V, variable) Less than 0.1% (at 100 Hz) DC 14.4 V (11 V to 16 V allowance) Negative ground 15-3/4 inch × 2-3/8 inch × 11-3/8 inch (400 mm × 60 mm × 288 mm) KS-AR7501D: 12.6 lbs. (5.7 kg) KS-AR7001: 11.5 lbs. (5.2 kg) Speaker input connector 4P × 1 Screw (Dia. 3/16 inch (4 mm) × 13/16 inch (20 mm)) × 4 Hex wrench 4 mm × 1 3 mm × 1 Spacer × 6 Bracket L × 1 S × 2 Screw (M4 × 1/2 inch (12 mm)) × 6 Washer (M4) × 6 Spring Lock Washer (M4) × 6 Design and specifications are subject to change without notice. [European Union only] EN, FR © 2007 Victor Company of Japan, Limited 3 0207MNMMDWTKC