Akai AT-K02 Bedienungsanleitung

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MODEL

Beak

Vou

‘AMPLFIER

STEREO

INTEGRATED

wii

STEREO

TUNER

moom

AT-KO2

AKALI

aranco

wreanares

aAneumee

AKAI

AT-K02

AM-U0Q2

STEREO

TUNER

uoveLA

T-KO2

STEREO

INTEGRATED

AMPLFIER

uopeLAM-U02

ALSO

APPLICABLE

BLACK

PANEL

MODEL

SECTION

MODEL

AT-K02

SERVICE

MANUAL

SECTION

MODEL

AM-U02

SERVICE

MANUAL

SECTION

PARTS

LIST

..................----2455

SECTION

SCHEMATIC

DIAGRAM................-

SECTION

MODEL

AT-KO2

SERVICE

MANUAL

TABLE

CONTENTS

L..

SPECHNICAL

DATA.

sacred.

tmospe

hati

Wig

alate

date

OteeGss

“DISMANTLING:

OFUNIT

sh-1

ga-eutide

nseaten

binec

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Eun

UNS

Hs.

“CONTROLS

ss.

otter

ees

bane

weds

weenie

eee

Beaten

wabee

CRAG

eat

wees

Gay

TV.

“PRINCIPALPARTS

LOCATION’

24324

awies

Hoo

talel

Gots

cotatileys

ohare

ees

“VOLTAGE

CONVERSION

.iscit:o2t3

25.406

Saree

uae

Soroka

Sea

aes

eae

and

Vi.

STUNER

ADJUSTMENT:

sc.02.55

eae

bos

rhage

Sadao

ewes

Rae

TONER

SECTION

ADIUSTMENT

34.54

wate

soe

day

wad

eae

dadtawernees

TUNER:

SECTION

ADJUSTMENT

$224.65

$cc

4000

¥a-e

Sire

E9044

pee

bey

Peed

ees

Vil.

TUNING

CORD

THREADING

3.60225

aoe

opi

awed

wae

Wes

VIII.

CLASSIFICATION

VARIOUS

P.C

BOARDS

.........0

00000

cee

een

eens

P.C

BOARD

TITLES

AND

IDENTIFICATION

NUMBERS

............

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COMPOSITION

VARIOUSP.C

BOARDS

...........

0.00

cee

eee

ences

For

basic

adjustments,

measuring

methods,

and

operating

principles,

refer

GENERAL

TECHNICAL

MANUAL.

TECHNICAL

DATA

TUNER

SECTION

FREQUENCY

RANGE

|__87.5

MHz

108

MHz

SENSITIVITY

(IHF)

oan

CAPTURE

RATIO

;

1.2

ack

SELECTIVITY

(IHF)

____._

than

IMAGE

REJECTION

than60dB(98MHz)

REJECTION

than

85dB(98MHz)

SPURIOUS

REJECTION

than

(98

MHz)

SUPPRESSION

SIGNAL

NOISE

RATIO

HARMONIC

DISTORTION.

=MONO

Less

than

0.09%

(100%

modulation)

STEREO

_|_Less

than

0.12%

(100%

modulation)

TUNING

INDICATOR

;

LEDs

SIGNAL

INDICATOR

LEDs

MUTING

—

Switchable

ON-OFF

STEREO

SEPARATION

than

kHz)

SUB

CARRIER

SUPPRESSION

than

OUTPUT

VOLTAGE

"Fixed

(100%

modulation)

ANTENNA

INPUT

IMPEDANCE

300

ohms

balanced,

ohms

unbalanced

TUNER

SECTION

FREQUENCY

RANGE

520

kHz

1,605

kHz

SENSITIVITY

(IHF)

_150

pV/m

(bar

antenna),

(external

antenna)

SELECTIVITY

(IHF)

than

IMAGE

REJECTION

"More

than

(1,000

kHz)

REJECTION

than

SIGNAL

NOISE

RATIO

than

OUTPUT

VOLTAGE

«300

(30%

modulation)

ANTENNA

Built-in

ferrite

barantenna

epee

MISCELLANEOUS

SEMICONDUCTORS

Transistors:

26,

Diodes:

13,

LED:

ICs:

POWER

REQUIREMENTS

120

for

U.S.A.

and

Canada

220

for

Europe

except

240

for

and

Australia

110/220/240

50/60

internally

switchable

for

the

other

countries

POWER

CONSUMPTION

—

20W

;

DIMENSIONS

;

440

(W)

(H)

340

(D)

(17.3

3.1

13.4)

inches

WEIGHT

4.9

(10.8

Ibs)

For

improvement

purposes,

specifications

and

design

are

subject

change

without

notice.

il.

DISMANTLING

UNIT

case

trouble,

etc.

necessitating

dismantling,

please

dismantle

the

order

shown

the

Photographs.

Reassemble

reverse

order.

SCREWS

UPPER

COVER

FRONT

PANEL

SCREWS

il.

CONTROLS

AKA

BTEREOD

TUNER

moc

AT-KDOE

vom

ane

SOCK

WALARD~

NOT

BPEN/

AKA!

ELECTRIC

co,

uD.

(Tea)

—

PAS

LEY

‘

DERORRENCSELF

RICHT

BETH!

MADE

JAPAN

Fig.

Controls

POWER

SWITCH

FMDIAL

SCALE

10.

SWITCH

DIAL

SCALE

11.

TUNING

KNOB

SIGNAL

STRENGTH

INDICATOR

12.

LOC

SWITCH

CENTER

TUNING

INDICATOR

13.

and

ANTENNA

TERMINALS

STEREO

LAMP

14.

FERRITE

BAR

ANTENNA

SERVO

LAMP

15.

OUTPUT

JACKS

(Left

and

Right)

MODE

SWITCH

16.

POWER

CORD

(Some

models

have

power

cord

inlets

instead.)

iv.

PRINCIPAL

PARTS

LOCATION

eee

CENTER

TUNING

SERVO

SELECTOR

INDICATOR

SWITCH

TUNING

D3toD5

swl

SHAFT

POWER

SIGNAL

STEREO

MOOE

SWITCH

STRENGTH

INDICATOR

SWITCH

90l

INDICATOR

Dé

SwW2

Fig.

Front

View

FUSE

HOLDER(A)

BAR

ANTENNA

ANT9OI

FRONTEND

ATT

BOARD

FFI26UI2

POWER

ATK=-

2003

TRANS

RORMER

T90!1

AYKO2T

)

ATAO2T-70_

79ad.T4

POWER

SWITCH

swesodl

TUNER

P.C

BOARD

ATK-2001A

Fig.

Top

View

VOLTAGE

CONVERSION

110V

AREAS:

400mA

220V

AREAS:

200mA

240V

AREAS

200mA

POWER

TRANS

ATKO2T-70

Models

for

Canada,

USA,

Europe,

and

Australia

are

not

equipped

with

this

facility.

Each

machine

preset

the

factory

according

destination

but

some

machines

can

set

110V,

220V

240V

required.

voltage

change

necessary,

this

can

accomplished

follows.

Disconnect

Power

Cord.

Loosen

holding

screws

and

remove

upper

case.

Remove

existing

line

voltage

fuse

proper

fuse

holder,

explicitly

following

instructions

printed

the

rear

panel.

Fig.

Fuse

Holder

(A)

(U/T

Model)

TUNER

ADJUSTMENT

VI.

®)

QNI

TVNOIS

LNSWLSNCOV

g3qa3N

(WT)

Sit

NOILVYVdAS

O3u3aLS

anoz gnoz

SUA

(Q3Y)

ZOA

Save

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[2].

191

Tuner

P.C

Board

ATK-2001A

Fig.

FREQUENCY

COUNTER

«gl

INPUT

—

VOLTMETE

pMpees

TERMINATION

PAD

76KHz

acd

input

ans

‘a

300

OHMS)

REC

OUTPUT

INPUT

ANTENNA

OUTPUT

TERMINAL

Rech

VOLT

METE

REC

OUTPUT

AT—KO2

INPUT

STEREO

DISTORTION

GENERATOR

METER

Lchd

Roh

Al.

[

output

inpuT

TUNER

SECTION

ADJUSTMENT

(Refer

Figs.

Fig.

Instrument

Connections

aaa

cence

cay

Step

Adjustment

Item

Adjustment

Point

Result,

_Remarks

Front

End

Maximum

Noise

Selector

PM,

and

Mode

]

MONO.

Tune

noise

only

Coil

(Front

End)

Level

without

broadcast

interference.

Funihe

jnidicaior

Center

indication

;

Centering

T3-a

rani

LEDs

MHz,

(mono)

input.

Distortion

Less

than

0.09%

Mee:

ves

(mono)

puke

T3-b

Less

than

0.09%

both

Factor

Distortion

Factor

‘

channels.

ets

somes

Contiimation

funing

indieatar

not

Tuning

indicator

centered,

re-adjust

Steps

and

Cente

ring

above.

High

Rane

TCo

Maximum

output

108

MHz,

(anisti9)

input.

Scale

(Giont

End)

Minimum

Distortion

Scale

indicator

108

MHz.

indication

Factor

Error:

Within

+250

kHz

Confirmation

Maximum

output

MHz,

(mono)

input.

Low

Range

Minimum

Distortion

Scale

indicator

MHz.

Scale

indication

Factor

Error:

Within

+250

kHz

el]

pera

High

Range

TCR,

TCA

Less

than

108

MHz,

ess

than

Sensitivity

Eten

Epa

Distortion

Factor

(mons)

inpue

CBunaation:

Less

than

MHz,

bess

“thas

Low

Range

Hisorhion

Pace

(mono)

input.

Scale

indication

Rel

NOTES

ues

tevel

VRI30kB

“No

Signal

emitted

Kode

STEREO.

from

output

MHz,

(mono)

input.

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