JVC KS-AR8004 - Manuel (Page 3)

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KS-AR8004D
KS-AR8002D
Status lamp
The lamp normally lights in blue while the unit is turned on.
• When the lamp does not light
• When the lamp lights in red
• When the lamp lights in violet frequently
– It indicates there may be a problem. See “TROUBLESHOOTING” on the right column.
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.
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.
CROSSOVER frequency controller
Turning this adjusts the cutoff frequency within the range of 30 Hz to 500 Hz. Adjust the level
while listening to the sound. This control is preset to 30 Hz when the unit is shipped.
CROSSOVER fi lter switch
OFF: Normally, set to this position. The switch is preset to this position when the unit is
shipped.
LPF: Set to this position when you want to turn on the LPF (Low-Pass Filter) switch (the
Low-Pass Filter transmits frequencies lower than the cutoff frequency).
HPF: Set to this position when you want to turn on the HPF (High-Pass Filter) switch (the
High-Pass Filter transmits frequencies higher than the cutoff frequency).
TROUBLESHOOTING
For more details, consult your “JVC IN-CAR ENTERTAINMENT” car audio dealer.
The Status lamp does not light.
• Change the fuses if the current one is blown.
• Confi rm the connections for the power supply (see “POWER SUPPLY” on page 1).
• 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 so many amplifi ers.
• Confi rm the battery voltage (11 V to 16 V).
The Status lamp lights in red and/or the unit heats up abnormally.
• Use speakers of a suitable impedance.
• Correct the speaker wirings if they are short-circuited.
• Leave the unit turned off for a while to cool it down.
The Status lamp lights in violet frequently. (Clipping*)
• Lower the input level with the Input LEVEL controller until the lamp lights in violet a few times.
* It means that the amplifi er circuits are overloaded and the sound may distort due to too much
input from the car receiver.
No sound is heard.
• Confi rm the connections for the power supply (see “POWER SUPPLY” on page 1).
• Connect the RCA pin cords to the INPUT jacks.
• Confi rm the speaker wirings and the position of the CROSSOVER fi lter switch (See “SPEAKER
CONNECTIONS” on page 2).
Alternator noise is heard.
• Keep the leads of the POWER terminals 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 (MW/LW) tuner.
• Move all the leads of this unit away from the antenna (aerial) lead.
CONTROLS
To operate the following controls, detach the control cover. Attach it again after operation.
SPECIFICATIONS
Maximum Power Output 600 W
RMS Power Output KS-AR8004D: 120 W RMS x 4 channels at 4 Ω and ≤ 1% THD + N
KS-AR8002D: 150 W RMS x 2 channels at 4 Ω and ≤ 1% THD + N
Load Impedance 4 Ω
(Normal mode: 2 Ω to 8 Ω allowance)
(Bridge Mode: 4 Ω to 8 Ω allowance)
Frequency Response 5 Hz to 40 kHz* (+0, –3 dB)
* Subsonic fi lter cuts off extremely low frequency signals less than
18 Hz.
Input Sensitivity/Impedance 2 V /44 k Ω (0.3 V to 6 V, variable)
Distortion Less than 0.01% (at 1 kHz)
Signal-to-Noise Ratio 80 dBA (reference: 1 W into 4 Ω)
Power Requirement DC 14.4 V (11 V to 16 V allowance)
Grounding system Negative ground
Dimensions (W×H×D) 250 mm × 62 mm × 182 mm
Mass (approx.) KS-AR8004D: 2.8 kg
KS-AR8002D: 2.6 kg
Accessories Screw ( φ 4 × 20 mm) × 4
Hex Screw (M4 × 10 mm) × 8
Hex wrench
4 mm × 1
3 mm × 1
Spacer × 4
Bracket
L × 4
I × 4
Design and specifi cations are subject to change without notice.
Control cover
The illustration above is for KS-AR8004D.
Dear Customer,
This apparatus is in conformance with the valid European directives and standards regarding
electromagnetic compatibility and electrical safety.
European representative of Victor Company of Japan, Limited is:
JVC Technology Centre Europe GmbH
Company name changed in:
JVC Technical Services Europe GmbH
Postfach 10 05 52
61145 Friedberg
Germany
Information for Users on Disposal of Old Equipment
This symbol indicates that the product with this symbol should not be
disposed as general household waste at its end-of-life. If you wish to
dispose of this product, please do so in accordance with applicable
national legislation or other rules in your country and municipality. By
disposing of this product correctly, you will help to conserve natural
resources and will help prevent potential negative effects on the
environment and human health.
This symbol is only valid in the European Union.
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