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Troubleshooting; Specifications - JVC KS-AX4302 Instructions Manual

Power amplifier

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KS-AX4302 (For U.S.A)
2-speaker system plus subwoofer (1 amplifi er)
The minimum impedance should be 4 Ω for each of left and right speakers, and the
subwoofer.
*
1
Not provided for this unit.
*
2
Bridge wiring
3
*
Use a High-pass crossover (not provided).
4
*
Use a Low-pass crossover (not provided).
CONTROLS
KS-AX4504
KS-AX4302
Power lndicator
The blue lamp illuminates while the unit is turned on.
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").
BASS BOOST controller
Turning this boosts the 45 Hz frequency within the range of 0 dB to +12 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 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).
CROSSOVER frequency controller
Turning this adjusts the cutoff frequency within the range of 50 Hz to 400 Hz. Adjust the level
while listening to the sound. This control is preset to 50 Hz when the unit is shipped.

TROUBLESHOOTING

For more details, consult your "JVC IN-CAR ENTERTAINMENT" 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 amplifi ers.
• Confi rm 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.
• Confi rm 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 (MW/LW) tuner.
• Move the speaker and power cords away from the antenna (aerial) lead.
Subwoofer

SPECIFICATIONS

Signal-to-Noise Ratio
Maximum Power Output
Frequency Response
Input Sensitivity/Impedance
Dimensions (W×H×D)
Design and specifi cations are subject to change without notice.
Information for Users on Disposal of Old Equipment
This symbol is only valid in the European Union.
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
Postfach 10 05 52
61145 Friedberg
Germany
3
KS-AX4504: 65 W RMS x 4 channels at 4 Ω and ≤ 1% THD + N
Power Output
KS-AX4302: 100 W RMS x 2 channels at 4 Ω and ≤ 1% THD + N
80 dBA (reference: 1 W into 4 Ω)
600 W
4 Ω (2 Ω to 8 Ω allowance)
Load Impedance
4 Ω (4 Ω to 8 Ω allowance) (Bridge Mode)
5 Hz to 50,000 Hz* ( +0, –3 dB)
* Subsonic fi lter limits extremely low frequency signals less than
20 Hz.
2 V/45 kΩ (0.3 V to 6 V, variable)
Distortion
Less than 0.04% (at 1 kHz)
Power Requirement
DC 14.4 V (11 V to 16 V allowance)
Grounding system
Negative ground
300 mm × 63 mm × 265 mm (11-
Mass (approx.)
3.8 kg (8.4 lbs.)
Accessories
Speaker input connector
KS-AX4504: 8P × 1
KS-AX4302: 4P × 1
Mounting Screw (φ 4 × 20 mm (
Hex wrench
4 mm × 1
3 mm × 1
2 mm × 1 (KS-AX4504 only)
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.
13
/
in. × 2-
1
/
in. × 10-
7
/
in.)
16
2
16
13
/
in.)) × 4
16

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