Kenwood KX-W8040 Bedienungsanleitung

KX-W8040

lila

SERVICE

MANUAL

(1991-11

PRINTED

JAPAN

B51-4467-00

(S)

4134

Cassette

lid

Escutcheon*

Panel

Metallic

cabinet

Knob

Escutcheon*

Cassette

lid

(A53-1335-04)

(BO7-)

(A60-0196-02)

(A01-1935-01)

(K29-4149-04)

(BO7-)

(A53-1335-04)

KENWOOD

Knob

Dressing

pane!

Phone

jack

Knob

(K29-4141-03)

(A21-1790-03)

—§

(E11-0199-05)

(K29-4366-02)

(K29-4141-03)

Cassette

holder

ass'y

Knob

Cassette

holder

ass'y

(A53-1283-03)

(K29-4130-04)

(A53-1285-03)

inlet

(E03-0102-25)

CAUTION

ATTENTION

RISK

SLECTIMG

SHICK

{WSOC

CHOC

ELECTRMUE|

_NDT

OPEN

PAS

JUVE

Phono

jack

Miniature

phone

jack

Foot

(E13-0445-05)

(E11-0188-05)

(J02-1034-05)

“Refer

parts

list

pate

29.

Photo

KX-W8040Y

type.

KX-W8040

CONTENTS

DISASSEMBLY

FOR

REPAIR

..........ccseecesseeeeereeees

BOARD

sisesstcstensas

Degiltranapehesa

ise

atop

enetbesmetaasiuaee

BLOCK

DIAGRAM

sivisatcscvencsivesesesecnnsiteitncnsstyatuvacsues

SCHEMATIC

DIAGRAM

.........ccesssesesesssseeesseeeseees

CIRGUIE

DESCRIP

TION

wccscnssoceietnasccaeusctentens

rane

EXPLODED

VIEW

(MECHANISM)

..........

cee

ADJUSTMENT

..0..ccecccceeesssestssscsesseneesssreneesseees

EXPLODED

VIEW

(UNIT)

covcicsecctiticcs

Giteaartveee

REGLAGE

soseicccsis

Steak

lenteissiticsealvnsersssvacetoeannescie

PART

IST

ssitctiacircn

eciseaxguibenanniseataleniiess

ABGLEICH

vases

prsteretuiscinuscieccepocvanetvopnsaveceatsaesreenbetuas

SPECIFICATIONS.

ccccsccesecuavatessanecense

BACK

COVER

WIRING

DIAGRAM

siissiscossincieversisedesctisssstsotnedantans

Accessories

Audio

cord......

(E30-0505-05)

Instruction

manual

B60-0777-00

(English)

System

control

cord......

B60-0778-00

(French)

P,E

(E30-

1392-05)

B60-0779-00

(Chinese)

B60-0780-00

(GE,

Du,

It)

COM

cco

inacj

045956

B60-0830-00

(Spanish)

(Except

for

some

areas.)

(The

shape

may

vary

de-

pending

the

destination

Item

carton

case

area.)

(E30-1305-15:Y)

H50-0271-04

Prine

itil

;

Polystyren

formd

fixture

(Except

for

some

areas.)

H10-5101-12

For

the

unit

with

Europe-

plug

areas

other

H10-5102-12

than

Europe.

(E03-01

15-05)

KX-W8040

DISASSEMBLY

FOR

REPAIR

How

remove

the

front

panel

Press

the

EJECT

button

open

the

cassette

holder

then

remove

the

cassette

lid.

Two

claws

escutcheon

pulling

out

side

then

remove

the

escutcheon.

(same

both

deck)

Remove

the

four

screws

bottom

(@)

How

remove

the

mechanism

@®

Remove

the

four

screws

(@)

fxring

the

mechanism

assembly

KX-W8040

BLOCK

DIAGRAM

LOHSANO

329

—

PHWE

£3530

—

mea

PTs)

XIWIVW

dgWv¥

13A37

Sex

Otd-xH

wind

250

AQTIO0<

>~Ou

3s0_SvI9@

{ow

330

vane

pes

k—

Gud

dla

h—

7HO

woo-«

aSHd

Paine

vSHad

LHG

FOI

43A30

-43

q3gaan

94,

vivo>

s[leise

v9 vo

EEO

2rd

vivo

asna

ase

viv

~|bLsais

—

ear

WOMINOIWELS4S

;

oro

‘BtO

ino

Awd

AWOBE

SaP9~-

O38

y355N9

AWS

SEp0e-

-dS03

dSn3

-4-AGT

AG+

VHI3W

BHO)

“sto

Aztov

ASTOV

dl4

wON

woo-a

LAGS?

BlHd

ce)

€

svig

$vIg

EDV

VSHd

nae

XIW1VH

usisisau

1938]

Vid

ar~ea

vores

now

zlz

zlzl8

yYle

eo8g

nnw

“Mw

H3-Vv

‘cto

soo

XIb1VvH

VAAAN

{

HBLSIS3aY

——

440

/NO

d/d

LPS.

z@o

dWv13A3a7

Avi+

AVE

3787340

dvui|

ino

avs

syra

ANWOLINOW

zor

3/8

AB100

AWBYS

Evol

sapc-

DOA+

AUS

Pease

s@po2-

[

xan

Ape+

WVH9OVIGO

TSAAATRHIONG

KX-W8040

CIRCUIT

DESCRIPTION

RECORD/PLAYBACK

AMPLIFIER

UNIT

(X28-2310-10)

Parts

Description

[Qi

28D1266(Q,

+12V

AVR

eee

2SA999(E,

-22V

AVR

sake

See

eee!

25C3940A

IAS

OSC

CONTROL

(A)

28C3940A__|

BIAS

OSC

CONTROL

(B)

fea,

(OGh

Use/Function

Operation/Condition/interchangeability

eee

ECHA(A)

SOL

CONT.

ECHA(B)

SOL

CONT.

UICK

REV.

AMP

Q11,

2SA933S(Q,R)

EVEL

AMP

LIMITTER

‘Controlled

Q5.

Since

the

level

amplifier

output

+5V.

> <

Be)

POs

2SC1740S(Q,R)[

+12VAVR

momentarily

when

the

power

switched

on.

Q25~28

2SA933S(Q,R)

[PLAYOUTMUTING

ControlledbyQ39

ontrolled

Q38_

OFF:

REC

DRIVER

ontrolled

Q42

and

Q43

ontrolled

IC3

OFF:

REC

ontrolled

IC3

OFF:

REC

ontrolled

1C4

pin12

OFF:

AREC

ontrolled

IC4

pini3

OFF:BREC

ontrolled

IC1

ontrolled

IC5

OFF:

High

speed

ontrolled

IC5

OFF:

Hich

speed

ontrolled

IC1

pins

and

ontrolled

IC4

pins

and2

OFF:

Normal

A-BIAS

CONTROL

-BIAS

CONTROL

-REC

MUTING

DRIVER

-REC

MUTING

DRIVER

LAY

OUT

MUTING

DRIVER

Q40.—S«

DTC124ES

_—|

A-CPM

SPEED

CONTROL

B-CPM

SPEED

CONTROL

FL,

DRIVER

DTC124ES

-NORMAL

BIAS

CONTROL

DTC124ES

-NORMAL

BIAS

CONTROL

ontrolled

IC4

pins

and

OFF:

Normal

IGH-DUBB

MUTING

DRIVER

Controlled

IC3

pin8

OFF:

High

speed

onl

-EH

BIAS

OSC

CONTROL

__|

Controlled

Q35

OFF:

REC

-EH

BIAS

OSC

CONTROL

Controlled

Q36

OFF:

REC

-BIAS(HX)

CONTROL

Controlled

Q35

OFF:

RES

-BIAS

(HX)

CONTROL

Controlled

Q36

OFF:

REC

-HEAD

R/P

CONTROL

Controlled

IC3

pin7

ON:

REC

-HEAD

R/P

CONTROL

Controlled

IC3

pin6

ON:

REC

IGH

SPEED

HEAD

Controlled

IC3

pin8

OFF:

High

speed

only

-BEQA/B

Controlled

IC1

OFF:

plaibaack

ontrolled

IC4

pin5

OFF:

Recodimg

ontrolled

1C4

pin1

ON:CCRSon!

ontrolled

IC4

ON:

Auto

bas

recording

ontrolled

IC4

pin4

ON:

Dolby

off

ontrolled

IC4

pin3

ON:

Dolby

ontrolled

IC4

pin6

ON:

Multipbx

filter

Controlled

IC4

pin5

ON:

Dolby

jlayback

DTCI24ES

P-BEQR/P

57S

DTC124ES

NOR/CCRS

asa

DTC124ES__

NOR/OSC

[ass

DTC124ES__|

DOLBY

ON/OFF

Fa60

DTC124ES_|

DOLBY

B/C

OFF

OLBY

R/P

KX-W8040

CIRCUIT

DESCRIPTION

RECORD/PLAYBACK

AMPLIFIER

UNIT

(X28-2310-10)

Use/Function

Operation/Condition/Interchangeability

M50945-129SP

Eee

Peg

IC3~5

CxD1067P_——

Extended

TC9213P_|

Electronic

volume

control

1C7,8

UPC1297CA

DolbyHX-PROU

ic9,10_

CxAiigssP_

RECEQ)

Pena

ara

eee

ene

BA10393_—

eae

A-REEL

COMP.

BA10303____|

B-REELCOMP._—=—Ssd|—SSSSCSCSCSCSCSSCC~*r

Piozi_

[tastes

——SC«dARPBEQSSCSC~dSC“‘SWOCOC~“‘“*

[icx2

[tastes

_—-[BPBEQ

SSCs

SSSSCSCSCSSCC*r

arena

aad

eee

KX-W8040

CIRCUIT

DESCRIPTION

Micro

processor

(M50945-129SP)

Vref

O-

Vcc

LEVEL

AVcc

PHTA

PHSA

PHTB

PHSB

QRA

QRB

P17

KR4

P10

P11

P12

CLK

P13

DATA

P14

STB

P15

RST

P16

CLK

DATA

0«————

STB

OSC

OUT

Gé

BUSY

DATA

RESET

Xin

O———

KRO

Xout

KR1

KR2

KR3

Vss

KX-W8040

CIRCUIT

DESCRIPTION

Description

Name

LEVEL

PHTA

PHSA

PHTB

PinNo.}|

I/O

A/B

switching

output

_H:

deck

Line

mute

output

MUTE

OFF

MUTE

ant

\X|

DIM

O|0

ala

lass

ive]

CLK

Extended

clock

output

—ss—SSCSC‘“~*“‘~*~‘“‘~*~*~*~*~S~*S

Extended

data

output

__—S—SC~—~—“—S~—SsSC‘“—SsSCSSS

Extended

strobe

output

SSS

PAC

off

detection

H:ACON

LACOFFSSOS~—~SCS

[

400-Hz/10-kHz

output

forautobias——SSCSC—C~—~S~—~S~SY

Serial

busy

inputoutpat——SSSSSSSCSCSCS~—S

Serial

data

inpuvoutput_____—SSSSSSCSCSCS—CS—S

Connect

ground

———SSSSSCSC—~—SCSSY

PO]

PO}

a/fajoa}/oa}/ojoa}aol{a]oajou

iw)

O)NO,

OOM

Mmm

<<<

OW}

M|]

><]

O<]

O<|

MD]

S519)

(aigeiar

>|<

Sala

na 7)

XCIN

Connect

GND.

for

clock

pulses

for

time

display

COUT

OPEN.

for

clock

pulses

for

time

display

PG@oundpin

ROPENS

Key

input

_FEKEVON

L:KEYORFE

"Key

input

KEY

L:KEVOFF

SSCS

Key

input

KEY

OFF

Key

input

KEY

OFF

Connect

-30

High-voltage-resistant

port

pulldown

voltage

input

Wd]

Ww]

WIN]

MIN

(00)

DOI

ODIQ

OOOO)

AAA]

Zl <|

09]

63]

G1]

NI]

Co]

MBBS

Banal

ced

Pood

Rael

bd bo

KX-W8040

CIRCUIT

DESCRIPTION

Description

eee

UNO

Fluorescent

segment

output

Fluorescent

segment

output

luorescent

segment

output

Analog-to-digital

converter

power

supply.

Connect

backed-up

+5V.

Power

supply

pin.

Connect

backed-up

+5V.

™N

rir

ie)

ain

COIN

fo?)

hel

ro)

KX-W8040

CIRCUIT

DESCRIPTION

EXPANDER

(CXD1067P)

1/0

BIAS3

YDD

BIAS2

CLK

BIAS]

DATA

BIAS

STB

BIAS

RESET

R/P

SET

R/P

EQSP

Pl2

BIAS3

70u

Pll

BIAS2

P10

BIAS1

1/0

CCRS/NOR

VDD

OSC/NOR

CLK

DOLBY

B/C

DATA

DOLBY

ON/OFF

STB

DOLBY

R/P

RESET

MPX

SET

METAL

Cr02

P12

RECMUTE

METAL

Pid

RECMUTE

P10

Cr02

SOL

HOLD

CPK

CSP

RRW

REF

B SOL

HOLD

CSP

B CPH 9

RRW

REF

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