KAC-848
KAC-748
4-CHANNEL POWER AMPLIFIER ► Page 2-11
INSTRUCTION MANUAL
AMPLIFICATEUR DE PUISSANCE 4 CANAUX ► Page 12-21
MODE D’EMPLOI
AMPLIFICADOR DE POTENCIA DE 4 CANALES ► Page 22-31
MANUAL DE INSTRUCCIONES
KENWOOD CORPORATION
Take the time to read through this instruction manual. Familiarity with installation and operation procedures will help you obtain the best performance from your new power amplifier.
For your records
Record the serial number, found on the back of the unit, in the spaces designated on the warranty card, and in the space provided below.
Refer to the model and serial numbers whenever you call^upon your KENWOOD dealer for information or service on the product.
Mode! KAC-848/748 Serial number_____________ •
© PRINTED IN USA B64-1350-00 (KM)
Safety precautions
▲WARNING
To prevent injury or fire, take the following precautions:
•When extending the ignition, battery, or ground wires, make sure to use automotivegrade wires or other wires with a 5mm^
(AWG10) or more to prevent wire deterioration and damage to the wire coating.
•To prevent a short circuit, never put or leave any metallic objects (such as coins or metal tools) inside the unit.
•If the unit starts to emit smoke or strange smells, turn off the power immediately and consult your Kenwood dealer.
•Do not touch the unit during use because the surface of the unit becomes hot and may cause bums if touched.
▲CAUTION
To prevent damage to the machine, take the following precautions:
•Be sure the unit is connected to a 12V DC power supply with a negative ground connection.
•Do not open the top or bottom covers of the unit.
•Do not install the unit in a spot exposed to direct sunlight or excessive heat or humidity. Also avoid places with too much dust or the possibility of water splashing.
•When replacing a fuse, only use a new one with the prescribed rating. Using a fuse with the wrong rating may cause your unit to malfunction.
•To prevent a short circuit when replacing a fuse, first disconnect the wiring harness.
NOTE
•If you experience problems during installation, consult your Kenwood dealer.
•If the unit does not seem to be working right, consult your Kenwood dealer.
Cl»aning the unit
If the front panel gets dirty, turn off the power and wipe the panel with a dry silicon cloth or soft cloth.
▲CAUTION
Do not wipe the panel with a hard cloth or a cloth dampened by volatile solvents such as paint thinner and alcohol. They can scratch the surface of the panel and/or cause the indicator letters to peel off.
FCC WARNING
This equipment may generate or use radio frequency energy. Changes or modifications to this equipment may cause harmful interference unless the modifications are expressly approved in the instruction manual. The user could lose the authority to operate this equipment if an unauthorized change or modification is made.
Accessories
Part name |
External |
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Terminal cover |
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1 |
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(Power terminal) |
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Self-tapping screws |
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4 |
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(04 X 16 mm) |
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Protection function
This unit is equipped with a protection function for protecting this unit and your speakers from various accidents or probiems that can occur.
When the protection function is triggered, the Power indicator goes off and the amplifier stops operating.
■ Power indicator:
When the power is turned on, the Power indicator lights.
If the Power indicator does not light when the power is turned on, the Power indicator protection function may be activated. Check whether there is any
indication of trouble.
■ The protection function activates in the foiiowing situations:
•When a speaker wire may be short-circuited.
•When a speaker output contacts ground.
•When the temperature of internal parts exceeds 120°C (248°F).
•When a ground wire of the center unit (cassette receiver, CD receiver, etc.) or this unit is not connected to a metal part serving as an electrical ground passing electricity to the battery's negative © terminal.
2 English
Installation procedure
1.Remove the ignition key and disconnect the negative © terminal of the battery to prevent short circuits.
2.Set the unit according to the intended usage.
3.Connect the input and output cables of the units.
4.Connect the speaker wires.
5.Connect the power wire, power control wire and grounding wire following this order.
6.Install the unit in the car.
7.Connect the negative 0 terminal of the battery.
ACAUTIOISI
•Be sure to turn the power off before changing the setting of any switch.
•If the fuse blows, check wires for shorts, then replace the fuse with one of the same rating.
•Check that no unconnected wires or connectors are touching the car body. Do not remove caps from unconnected wires or connectors to prevent short circuits.
•Connect the speaker wires to appropriate speaker connectors separately. Sharing the negative wire of the speaker or grounding speaker wires to the metal body of the car can cause this unit
to fail.
• After installation, check that the brake lamps, winkers, and wipers work properly.
Installation
Self-tapping screw ••••
{o4 X 16 mm)
Installation board, etc. (thickness : 15 mm or more)
•Since the power amplifier has no parts which require operation, it can be installed at a position away from the driver's seat without any hindrances.
As generally accepted positions for its installation, places such as inside the trunk, etc. can be considered.
•Use the extension cables. (Optional.)
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0.5m |
1m |
2m |
4m |
5m |
6m |
RCA cable |
CA-2SL |
CA-12SL CA-22SL |
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CA-52SL |
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RCA cable (07mm) |
CA-3WL |
CA-13WL CA-23WL |
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CA-53WL |
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RCA cable (0l2mm) |
CA-5W |
CA-15W |
CA-25W |
CA-45W |
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CA-65W |
ACAUTION |
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Do not install the unit under the carpet. Otherwise heat build-up occurs and the unit may be |
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damaged. |
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Install this unit in a location which allows heat to easily dissipate. |
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Once installed, do not place any object on top of the unit. |
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The surface temperature of the amplifier will become hot during use. Install the amplifier in a |
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place where people, resins, and other substances that are sensitive to heat will not come into |
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contact with it. |
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When making a hole under a seat, inside the trunk, or somewhere else in the vehicle, check |
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that there is nothing hazardous on the opposite side such as a gasoline tank, brake pipe, or |
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wiring harness, and be careful not to cause scratches or other damage. |
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Do not install near the dashboard, rear tray, or air bag safety parts. |
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The installation to the vehicle should securely fasten the unit to a place in which it will not ; |
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obstruct driving. If the unit comes off due to a shock and hits a person or safety part, it may |
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cause injury or an accident. |
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After installing the unit, check to make sure that electrical equipment such as the brake lamps, |
■..'M |
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turn signal lamps and windshield wipers operate normally. |
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Bngtfsh 3
Controls
This is a 4 channel amplifier including 2 stereo amplifiers in a body. One amplifier is referred to as amplifier A and the other is amplifier B. This unit is compatible with a large variety of systems by combining the switches and functions described in the following.
KAC-848
KAC‘748
KAC-848
KAC-748
® ® ® ®
® Fuse (20 Ax 2 : KAC-848)
(30 Ax 1 : KAC-748) (2) Battery terminal
Ground terminal
0 Power control (REMOTE) terminal
®Amplifier A speaker output terminals
0 Amplifier B speaker output terminals
4 English
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