Safety precautions, To prevent injury or fire, take the following, To prevent damage to the machine, take the – Kenwood KAC-748 User Manual

Page 2: Cl»aning the unit, Protection function, Power indicator

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Safety precautions

▲WARNING

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.

•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

View

Number of

. Items

Terminal cover

(Power terminal)

Self-tapping screws

(04 X 16 mm)

Protection function

Power indicator

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

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.

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