Kenwood KAC 748 Owners Manual

Page 1

KENWOOD

KAC-848
KAC-748

4-CHANNEL POWER AMPLIFIER D Page 2-11

INSTRUCTION MANUAL

AMPLIFICATEUR DE PUISSANCE 4 CANAUX > Page 12-21
MODE DEMPLOI

AMPLIFICADOR DE POTENCIA DE 4 CANALES D 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. '
Model KAC-848/748 Serial number

© PRINTED IN USA 864435000 (KM)

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To prevent injury or fire, take the following

precautions: ,

-When extending the ignition, battery. or
ground wires, make sure to use automotive-
grade wires or other wires with a 5mm
(AWG10) or more to prevent wire
deterioration and damage to the wire coating.

0 To prevent a short circuit, never put or leave
any metallic objects (such as coins or metal
tools) inside the unit.

0 If the unit starts to emit smoke or strange
smells, turn off the power immediately and
consult your Kenwood dealer.

0 Do not touch the unit during use because the
surface of the unit becomes hot and may
cause burns if touched.

To prevent damage to the machine, take the

following precautions:

0 Be sure the unit is connected to a 12V DC
power supply with a negative ground
connection.

0 Do not open the top or bottom covers of the
Unit.

0 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.

Protection function

0 If you experience problems during
installation, consult your Kenwood dealer.

0 if the unit does not seem to be working right,
consult your Kenwood dealer.

Cleaning the unit

If the front panel gets dirty, turn off the power
and wipe the panel with a dry silicon cloth or
soft cloth.

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 Number of
View . Items
Terminal cover 1
(Power terminal)
Self-tapping screws
. (04 x 16 mm) @111) 4

This unit ls equipped with a protection function for protecting this unit and your speakers
from various accidents or problems that can occur.
When the protection function is triggered, the Power indicator goes off and the amplifier

stops operating.
I 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.

I The protection function activates in the following

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).

0 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 6) terminal.

2 English