Kenwood Kac-526 User manual

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2

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POWER

AMPLIFIER

KAC-

INSTRUCTION

MANUAL

KENWOOD

CORPORATION

©B64-0781-00

(K)(MC)

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-526

SeriaJ_number_;_

Safety

preCMutiom

I

awabwingI

Take

the

following

precautions

to

prevent

fire

and

avoid

personal

injury:

•

When

extending

the

battery

cable,

or

ground

cable,

use

3mm*

(AWG12)

or

larger

automotive

grade

cable

to

avoid

cable

deterioration

or

damage

to

the

covering.

•

Check

that

no

metal

objects

(coins,

tools,

etc.)

are

left

inside

the

unit

to

avoid

short

circuits.

•

If

you

smell

or

see

smoke,

turn

the

power

off

immediately

and

consult

your

Kenwood

dealer.

•

Do

not

touch

the

unit

during

use

because

the

surface

of

tfie

unit

becomes

hot

and

may

cause

burns

if

touched.

I

ACAUTiOin

Take

the

following

precautions

to

keep

the

unit

in

proper

working

order.

•

Be

sure

the

unit

is

connected

to

a

12V

DC

power

supply

with

a

negative

ground

connection.

•

Do

not

open

the

top

or

bottom

cover.

•

Do

not

install

the

unit

in

places

it

is

exposed

to

direct

sunlight,

high

heat

or

humidity,

water

may

splash

over

it,

or

dust

exists.

f

NOTE

I

•

If

you

have

difficulty

in

installing

this

unit

in

your

vehicle,

contact

your

Kenwood

dealer.

Cleaning

the

unit

•

If

the

surface

is

dirty,

wipe

it

clean

with

a

silicon

cloth

or

soft

dry

cloth

with

the

power

off.

I

ACAUTiOin

Do

not

use

hard

cloths

or

paint

thinner,

alcohol,

or

other

volatile

solvents.

These

may

damage

external

surfaces

or

remove

indicator

characters.

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

Self-tapping

screws

(04

16mm)

4

Terminal

cover

(Power

terminal

1

Controls

iifi

Operations

of

the

following

control

and

switches

are

required

in

accordance

with

the

center,

unit

and

speakers

connected

with

this

unit

0)

RCA

CABLE

GROUND

LEAD

terminal

(D

OPERATION

switch

This

switch

ailows

to

select

the

amplification

method

of

input

signals,

•

STEREO

position

The

input

left

and

right

signals

are

amplified

separately.

Use

this

position

when

the

unit

is

as

a

stereo

amplifier.

•

MONO

(Lch)

position

Amplifies

the

signal

input

from

the

left

side

only.

Set

to

this

position

and

make

bridged

connections

to

use

as

a

high-power

monaural

amplifier.

(The

input

right

signal

is

not

output.)

(3)

INPUT

SENSITIVITY

control

Set

this

control

according

to

the

pre-output

level

of

the

center

unit

connected

with

this

unit,

or

to

the

maximum

power

output

of

the

genuine-

accessory

car

stereo;

I

NOTE

2

For

the

pre-output

level

or

the

maximum

power

output,

refer

to

the

"Specifications”

in

the

instruction

manual

of

the

center

unit.

Maximum

power

output

of

genuine-

accessory

car

stereo.

10

W

15W

25

W

Center

unit

preout

level

300

mV

800-1000

mV

1.5V

2-4

V

Amplifier

input

sensitivity

MAX

(0.15

V)

0.3

V

0.5

V

1.0V~MIN

0

LINE

IN

terminal

0

SPEAKER

LEVEL

INPUT

terminal

®

FUSE

(15

A}

®

BATTERY

terminal

0

GROUND

terminal

0

POWER

CONTROL

(REMOTE)

LEAD

terminal

®

SPEAKER

OUTPUT

terminals

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.

.

.

This

unit

is

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.

The

protection

function

activates

in

the

following

situations:

•

When

a

speaker

output

contacts

ground.

•

When

the

unit

malfunctions.and

a

DC

signal

is

sent

to

the

speaker

output.

•

When

the

temperature

of

internal

parts

exceeds

12Q°C

(248“F},

•

When

a

ground

cable

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

0

terminal.

Power

indicator

English

3

1.

Remove

the

ignition

key

and

disconnect

the

negative

0

terminal

of

the

battery

to

prevent

short

circuits.

2.

Connect

the

input

and

output

cables

of

the

units.

3.

Connect

the

speaker

cables.

4.

Connect

the

ground

cable

and

battery

cable

in

the

order

listed.

5.

Install

the

unit

in

the

car.

6.

Connect

the

negative

0

terminal

of

the

battery.

[

acautionI

•

If

the

fuse

blows,

check

cables

for

shorts,

then

replace

the

fuse

with

one

of

the

same

rating.

•

Check

that

no

unconnected

cables

or

connectors

are

touching

the

car

body.

Do

not

remove

caps

from

unconnected

cables

oj

connectors

to

prevent

short

circuits.

•

Connect

the

speaker

cables

to

appropriate

speaker

connectors

separately.

Sharing

the

negative

cable

of

the

speaker

or

grounding

speaker

cables

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.

InstaHation

I

ACAUTIOrn

Do

not

install

the

unit

under

the

carpet.

Otherwise

heat

build-up

occurs

and

the

unit

may

be

damaged.

Self-tapping

screw

(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..

ACAUTION

•

Install

this

unit

in

a

location

which

allows

heat

to

easily

dissipate.

Once

installed,

do

not

place

any

object

on

top

of

the

unit.

•

After

installing

the

unit,

check

to

make

sure

that

electrical

equipment

such

as.

the

brake

lamps,

turn

signal

lamps

and

windshield

wipers

operate

normally.

•

Install

the

unit

securely

in

a

location

that

does

not

interfere

with

driving.

4

English

With

the

KAC-526,

a

subwoofer

can

be

added

easily

to

the

speaker

system

by

marking

use

of

the

properties

of

coils

and

capacitors.

This

mode

of

operation

is

caliedTri-mode.

MPrincipie

of

Tri-mode

•

Method

of

frequency

band

division

using

a

coil

and

capacitor

***in

case

of

GdB/oct.

slope

Output

Output

I_

Frequency

Frequency

•

Coil

(U;

Passes

low

frequencies

and

blocks

high

frequencies.

(Low

pass}

•

Capacitor

(C):

Passes

high

frequencies

and

blocks

low

frequencies:

(High

pass)

Your

coil

and

capacitor

Use

the.following

formula

to

identify

the

coil

and

capacitor

you

need

in

your

system.

C=

159000

(mF)

fc

X

R

fc=Cut

of

Frequency

(Hz)

L=

-159xR

fc

(mH)

R=Speaker

Impedance

(£2)

Example:

When

it

is

required

to

set

a

crossover

frequency

of

120

Hz

using

speakers

with

an

impedance

of

4

ohms.

...

.

Prepare

commercially-avaiiable

coil

and

capacitor

with

the

closest

ratings

to

the

results

calculated

from

the

formula

above.

The

capacitor

rating

should

be

as

close

as

possible

to

331.25

(pF)

and

the

coil

rating

should

be

as

close

as

possible

to

5.3

(mH).

MSystem

example

To

use

the

Tri-mode

configuration,

set

the

OPERATION

switch

to

the

STEREO

position.

Subwoofer

{Monaural)

I

acautiopTI

If

you

wish

to

bridge-connect

a

speaker,

such

as

a

subwoofer,

as

shown

above,

the

speaker

impedance

must

be

no

less

than

4

ohms.

Connecting

a

speaker

with

an

impedance

lower

than

4

ohms

may

damage

the

unit.

English

5

\System

connection

RCA

cable

ground

lead

terminal

When

using

an

RCA

cable

with

a

ground

lead

attached,

connect

the

ground

lead

to

this

terminal.

I

ACAUTIOW

I

Do

not

connect

cables

and

leads

to

both

RCA

cable

input

jacks

and

the

speaker

input

terminals

simultaneously,

for

this

may

cause

malfunction

or

damage.

Left

output

(White)

Right

output

(Red)

r^AUTION

I

Do

not

.use

this

terminal

for

r.

power

source

grounding.

=^1==

This

unit

will

be

damaged

if

^—j

the

power

source

if

^

grounding

wire

is

1

connected

to

this

terminal,

v

Battery

terminal

Ground

terminal

/y

Power

control

terminal

/

Power

terminal

Pass

battery

and

ground

cables

through

supplied

terminal

cover

and

connect

to

respective

terminals.

After

completing

connections,

fasten

terminal

cover

over

terminal

bracket.

Lead

terminal

(Commercially

available

part^

.

^^TerminaJ

cover

CENTER

UNIT

(Casstte

receiver,

Graphic

equalizer

etcj

Power

control

lead

(Commercially

available

part]

J[

KENWOOD

1^1

RightXX

uj

speaker\^\^^^

(

I_=rf1

Left

\\

'-kj

speaker

\

Terminal

cover

Speaker

output

terminal

Connect

the

speaker

output

cables

to

these

terminals.

Speaker

terminal

polarity

Le

L0

Re

R©

Battery

cable

/Power

control

cable

'Ground

cable

Lead

terminal

tODmmercieliy

available

part)

■

S

peaker

output

cable

If

a

buzzing

noise

is

heard

from

the

speakers

when,

the

engine

is

running,

connect

a

line

noise

filter

(optional)

to

each

of

the

battery

cable.

I

AWARNING

To

prevent

fire

caused

by

a

short

in

the.

wiring,

connect

a

fusible

link

or

breaker

nearby

the

battery's

positive

terminal.

Battery

Connect

the

ground

cable

to

a

metal

part

of

the

car

chassis

that

acts

as

an

electrical

ground

passing

electricity

to

the

battery's

negative

0

terminal,

Do

not

turn

the

power

on

if

the

ground

cable

is

not

connected.

6

English

[Connection

with

genuine-accessoty

car

stereo

Genuine-accessory

car

stereo

Ignition

key

)

switch

Car

fuse

box

{TI

Right

Speaker

Left

speaker

|0

©I

TTO

^

Power

control

lead

tCommercially

available

part)

I

Speaker

level

Input

terminal

Connect

the

speaker

level

input

cable

to

this

terminal.

Polarity

of

speaker

input

terminals

L@|L©lR©|Re

-Speaker

level

input

cable

KBvraOOD

Power

controt

terminal

ACAUTIOWi

The

genuine-accessory

car

stereo

shall

have

a

maximum

power

output

of

no

more

than

25

W.

Do

not

connect

the

speaker

output

leads

from

a

power

amplifier

(Optional)

to

the

speaker

input

terminals

of

this

unit,

for

this

may

cause

malfunction

or

damage.

Do

not

connect

rabies

and

leads

to.both

RCA

cable

input

jacks

and

the

speaker

input

terminals

simultaneously,

for

this

may

cause

malfunction

or

damage.

Connect

the

power

control

lead

to

a

power

supply

which

can

be

turned

ON/OFF

by

the

ignition

key

switch

(ACC

line).

With

this

connection,

shock

noise

may

be

generated

when

the

power

of

the

genuine-accessory

car

stereo

is

switched

ON/OFF.

:;.iL:

pmwmptesg

By

combining

the

switches

and

functions

of

the_KAC-526,

you

can

implement

a

wide

range

of

audio

system

configurations.

MFuH-range

2-channel

system

(LINE

(RCA)

input)

Switch

setting_

QpERATioN

■

■

»

•

■

...

output

r^—D

-IX]

Left

speaker

CENTER

UNIT

-^

CE|

Right

speaker

CENTER

UNIT

—

\

^

^_y

J

-

[Full-range

2-channel

system

(Speaker

level

input)

,—

Switch

setting

r

ZIZIZTZZI]

output

_

CENTER

UNIT

Left

speaker

Right

speaker

[High-power

full-range

1-channel

system

^

-Switch

setting

l-

CENTER

UNIT

output

Left

speaker

(Bridged)

Right

speaker

(Bridged)

English

7

tmitbieshoofing^iie

Often,

what

appears

to

be

a

malfunction

is

due

to

user

error.

Before

calling

for

service,

please

consult

the

following

table.

Symptom

Cause

Remedy

No

sound.

(No

sound

from

one

side.)

Input

(or

output)

cables

are.

disconnected.

Connect

the

input

Cor

output)

cables.

The

output

level

is

too

small

(or

too

large).

The

input

sensitivity

adjusting

control

Is

not

set

to

the

correct

position.

Adjust

the

control

correctly

referring

to

’Controls".

The

sound

quality

is

bad.

(The

sound

is

distorted.)

The

speakers

cable

are

connected

with

wrong

@/©

polarity'.

Connect

them

properly

checking

the

©/©

of

the

terminals

and

cables

well.

A

speaker

cable

is

pinched

by

a

screw

in

the

car

body.

Connect

the

speaker

cable

again

so

that

it

is

not

pinched

by

anything.

Specifications

Specifications

subject

to

change

without

notice.

Audio

Section

Max

Power

Output

(4

Q)

Normal.

Bridge.

Rated

Power

Output

(4

Q)

Normal.

Bridge.

Rated

Power

Output

(2

O)

Normal.....

Frequency

Response..

Signal

to

Noise

Ratio..

Sensitivity

(MAX)..

Sensitivity

(MIN).

Input

Impedance...

.70

W

X

2

.200

W

X

1

.35

W

X

2

(20

Hz

~

20

kHz,

less

than

0.08

%THD)

..

l

O

OWxl

(1

kHz,

0.8%THD)

.50

Wx

2

(1

kHz,

0.8

%

THD)

.

1

0

H

z

~

4

5

kHz(+0,

-1

dB)

.100

dB

.0.15

V

(rated

output)

.4.0

V

(rated

output)

.10

kil

General

Operating

Voltage

........14.4

V

(11

-

16

V

allowable)

Current

Consumption

(1

kHz,

10%

THD)

.i.15

A

Dimensions

(W

x

H

x

D}.220

x

52

x

160

mm

(8-11/16x2-1/16

X

6-5/16

in.)

Weight.....1-6

kg

(3.5

lb)

8

English

KENWOOD

AMPLIFICATEUR

DE

PUISSANCE

KAC-526

MODE

D'EMPLOl

KENWOOD

CORPORATION

O

B64-0781-00

(K)

(MC)

lAAVERTISSEMEIMTl

Pour

eviter

tout

risque

de

feu

et

de

blessures

physiques,

observer

ies

precautions

suivantes:

•

Si

le

besoin

de

rallonger

I'un

des

cables

d'alimentation

(masse,

la

batteria...)

utiliser

des

cables

de

catbgorie

automobile

d'une

section

minimum

de

3

mm*

(AWG12)

ou

plus

afin

d'6viter

toute

deterioration

de

ces

derniers.

•

verifier

que

Ton

n'a

pas

laisse

d'objets

metailiques

(pieces

de

monnaie,

outils,

etc.)

a

I'intdrieur

de

J'appareil,

afin

d’eviter

Ies

courts-

circuits.

•

Lors

d'un

degagement

d'odeur

ou

de

fumee,

eteindre

imm6diatement

I'appareil

et

consulter

son

agent

Kenwood.

■

“

■

•

Ne

pas

toucher

I'appareil

quand

il

est

en

_

service

car

la

temperature

de

sa

surface

est

suffisamment

eievee

pour

provoquerdes

brQlures.

I

AATTENTION

|

Pour

maintenir

I'appareil

en

parfait

etat

de

marche,

observer

les

precautions

suivantes.

Accessoires

Bien

verifier

que

I'appareil

est

raccord6

1

une

source

d'alimentation

CC

de

12

V

avec

raccordement

de

masse

negative.

Ne

pas

ouvrir

le

couvercle

du

dessus

ni

le

couvercle

du

fond.

Ne

pas

installer

I'appareil

de

fagon

qu'il

soit

expose

en

plein

soleil,

^

des

chaleurs

ou

des

humidit6s

intenses,

e

des

Pciaboussements

d'eau

ou

ci.

la

poussidre.

•

Si

Ton

rencontre

des

diffic.ult6s

pour

installer

I'appareil

dans

le

v^hicule,

consulter

son

agent

Kenwood.

Nettoyage

de

I'appareil

•

Si

la

surface.de

Ilappareil

sale,

I'essuyer

avec

un

chiffon

au

silicone

ou

un

chiffon

doux

et

sec

aprfes

avoir

bteint

('appareil.

I

AATTEIMTION

|

Ne

pas

utiliser

de

chiffons

durs

ni

de

diluant

pour

peinture,

alcool

ou

autre

solvant

volatile.

Ces

produits

risqueraient

d'abtmer

les

surfaces

externes

ou

d'effacer

les

inscriptions..

Nom

de

la

piece

Vue

exterieure

Quantite

Vis

taraudeuses

(04

X16nnm)

Cache

de

bornier

(Borne

d'alirnentation)

Fonctimnemeni

Les

rSglages

suivants

doivent

§tre

effe.ctu^s

pour

adapter

Cappareil

k

I'unit^

centrale

et

aux

haut-parleurs

qui

lui

sent

raccord6s.

0

Borne

RCA

CABLE

GROUND

LEAD

(fil

de

mise

a

la

masse

du

cdble

RCA)

(0

Commutateur

OPERATION

Ce

commutateur

est

destine

a

la

sdlection

du

mod

d'amplification

des

signaux

d'entr6e.

•

Position

STEREO

Les

signaux

d'entrde

droit

et

gauche

sont

amplifies

s^pardment.

C'est

la

position

^

utiliser

lorsque

I'appareil

sert

d'amplificateur

stdrdo.

•

Position

MONO{L}

SeuI

le

signal

present

^

I'entrde

de

la

vole

gauche

estamplifid.

Utiliser

cette

position

et

effectuer

les

pontages

pour

disposer

d'un

amplificateur

monaural

de

plus

forte

puissance.

(Le

signal

d'entrde

droit

n'est

pas

reproduit.)

®

Commande

INPUT

SENSITIVITY

(sensibillte

d'entree)

Rdgler

cette

commande

en

fonction

du

niveau

de

sortie

du

prdampli

de

I'unitd

centrale

ou

du

niveau

de

sortie

maximum

de

I'autoradio

stdrdo

d'origine.

[

REMARQUE

I

A

propos

du

niveau

de

sortie

du

prdampli

ou

du

niveau

de

puissance

maximum,

se

reporter

aux

"Specifications"

du

manual

d'instructions

de

^

runits

centrale.

0

Borne

d'entree

de

ligne

LINE

IN

®

Borne

SPEAKER

LEVEL

INPUT

®

FUSIBLE

(15

A)

®

Borne

POWER

(alimentation)

®

Borne

GROUND

(masse)

@

Borne

POWER

CONTROL

(REMOTE)

LEAD

(fil

de

commande

d'alimentation)

®

Bornes

SPEAKER

OUTPUT

Puissance

maximalel

de

sortie

d'un

autoradio

d'origine

Niveau

de

sortie

de

pr6amplificateurde[

Tappareil

central

Sensibility

d'entree

de

Pamplificateur

300

mV

low

MAX

(0,15

V}

800-1000

mV

0.3

V

15

W

1.5V

0,5

V

25

W

2-4

V

1,0V~MIN

2

French