Kenwood KX-W894 Manual de usuario

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1

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2

Tabla de contenidos

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STEREO

DOUBLE

CASSETTE

DECK

KX-W894/W4060/W6060

SERVICE

MANUAL

|

KENWOOD

©

1994-4

PRINTED

IN

KOREA

B51-4850-00(K)

3696

(KX-W6060)

Badge(Logo)

(B43-0287-04)

Holdor

glass

Panel

(BO3-2893-04)

(B60-0519-11)

Knob(EJECT)

Front

glass

(K29-5858-14)

(B03-2868-13)

Cassette

holder

Knob

Knob

(A53-1455-12)

(K29-5827-03)

(K29-5824-02)

Phono

jack

(E63-0046-15)

Foot*

(J02-)

Phone

Jack

Knob

(E11-0208-05)

Miniature

phone

jack

(E11-0188-05)

(K29-5828-04)

Metallic

cabinet*

(A

01-)

Knob

Holder

glass

(K29-5826-03)

(B03-2893-04)

Knob

Cassette

holder*

(K29-5827-03)

(A53-)

Slide

switch

(S31-2131-05)

Power

cord

bushing

(J42-0083-05)

—e——_

AC

power

cord*

(E30-)

*Refer

to

parts

list

pa

ge

21

KX-W8Q4W/4060W6060

CONTENTS/ACCESSORIES

CONTENTS

BLOCK

DIAGRAM

2:00:00

5

SCHEMATIC

DIAGRAM

0.200000.

0eeee

15

CIRCUIT

DESCRIPTION

2-02

seesnecen

6

EXPLODED

VIEW

......0000--0-0--vvusnsunerstneeniint

19

ADJUSTMENT

ii

c6s5ieec

eu

anicatates

10

PARTS

LIS

Tastes

eet

aman

21

WIRING

DIAGRAM.

-.-.-ssscssscsssecseseccveenssevesenstesstesetnsstenee

12

SPECIFICATIONS

.....0.ccccccc

ce

ccceecenees

BACKCOVER

PC

BOARD

&.ckeiicecritid

acd

aatiniemnioe

13

ACCESSORIES

[Instruction

Manual]

(KX-W894)

B60-1425-00(ENGLISH)

:

K.P.

Y,M,

X,

R

B60-1426-00(FRENCH)

:P

B60-1427-00(CHINESE)

:M

Audio

cord

(E30-0615-05)

:

KX-W894

(E30-0505-05)

:

KX-W4060

:

KX-W6060

B60-1428-00(SPANISH)

:

M.R

System

control

cord

(E30-2733-05)

(KX-W4060)

AC

plug

adaptor

B60-1425-00(ENGLISH)

:

K,

PY,

M,

X,

T,

E,

R

AE

SCEAEIO

Some

arene)

B60-1426-00(FRENCH)

:

P.

E

(For

the

unit

with

a

European

>

B60-1427-00(CHINESE)

:

M

AC

plug

in

areas

other

than

Europe.)

(E03-0115-05)

B60-1428-00(SPANISH)

:™M,E,

R

B60-1429-00(GE,

BU,

IT):

E

(KX-W6060)

B60-1420-O0(ENGLISH)

:

K,

PY,

M,

X,

T,E,

R

B60-1421-00(FRENCH)

:

PE

B60-1422-00(CHINESE)

:M

B60-1423-00(SPANISH)

:M,E,R

B60-1424-00(GE,

BU,

IT):

E

AX-WRS4

4060/6060

(KX-W894)

Metallic

Cabinet*

(A01-)

Holder

glass

_—

Panel

Knob(EJECT)

‘Front

glass

Escutcheon

Holder

glass

(B03-2893-04)

(A60-0521-11)

(K29-5858-14)

(B03-2869-13)

(BO7-2258-03)

(BO3-2893-04)

=

Cassette

holder

Foot

Knob

Knob

Knob

Knob

Cassette

holder

(A53-1463-12)

(J02-0366-15)

(K29-5827-03)

(K29-5882-02)

(K29-5828-04)

(K29-5827-03)

(A53-1461-12)

(KX-W4060)

Metallic

cabinet*

(A01-)

Holder

glass

Panel

Knob(EJECT)

Front

glass

Escutcheon

Holder

glass

(B03-2893-04)

(A60-0520-11)

=

(K29-5858-14)

(BO3-2869-13)

(BO7-2258-03)

(B0O3-2893-04)

Cassette

holder

Foot*

Knob

Knob

Phone

jack

Knob

Knob

Cassette

holder

(A53-1459-12)

(J02-)

(K29-5827-03)

(K29-5825-02)

(E11-0208-05)

(K29-5828-04)

(K29-5827-03)

(A53-1457-12)

*Refer

to

parts

list

on

page

21

KX-W8Q4

4060/6060

CONTROL

AND

OPERATIONS

Peak

level

meter

—-—-~

(Dolby

NR

reference

level)

Operation

indicators

-

----

Operation

indicators

(Deck

Al’

at ae

onion

a

at

a

i

fa

{

ae

(Deck

8)

he

se

<4,»

Direction

indicators

|

=

~,--1!.57..-7)---=--77-

lee

Soe

<4,»

Direction

indica-

DUBBING

indi

=

indicators

-----~-

Deck

A

counter

|

|

|

Deck

B

counter

®

REC

indicator

HIGH

,

NOR.

rot

Il

PAUSE

indicator

AUTO

BIAS

indicator

|

MPX

indicator

STAND

BY

indicator

|

NORMAL

DUBBING

key

EJECT

key

EJECT

key

HIGH

DUBBING

key

——---

—_——

|

|

ss

COUNTER

RESET

A/B

keys

*

KENWOOD)

HEREO

DOUBLE

CASSETTE

OFCK

KX

W5EU6

CCAS

MI

treme

|

==

OAL

ONLY

A

<a

e

~

al

ti

tije

(a)

oe)

‘a ae

Hix

PRO

|

Fast

reverse

|Stop

key

@

key

<<

Fast

forward

es

key

=

key

im.

Play

keys

<«,

>

Play

keys

«,

>.

Fast

forward

key

>>!

Fast

reverse

key

«<<

TIMER

switch

REC

LEVEL/BAL.

(BALANCE)/BIAS

knob

POWER

switch

MODE

key

DOLBY

NR

switch

---——_-__

PHONES

jack

DIRECTION

switch

Connect

headphones

plug

te

this

jack

INDEX

SCAN

key

CCRS

key

AUTO

BIAS

key

REC/ARM

key

e.

|

!

|

(

'

\

\

1

f

‘

ae

ea

;

ee

|

‘

t

'

:

MPX

FILTER

AUTO

BIAS

WREC

PAUSE]

@REC/ARM

\

\

.

\

\

1

\

\

'

1

!

I

!

!

|

|

!

1

:

MPX

FILTER

key

REY

PAUSE

key

i

u

[pte

inde

ap

SaaS

AE

Sees

bea

ei

SO

in

i

a

ee

]

_

STAND

BY

mode

of

POWER

switch

|

|

|

When

the

power

cord

of

thas

unt

is

plugged

into

an

AC

outlet,

the

STAND

BY

indicator

ights

up

regardless

st

the

ON/OFF

setting

of

the

POWER

switch.

This

mdicates

that

a

small

amount

of

current

1s

being

Supplied

to

the

unit

to

back

up

the

memory

contents

This

mode

is

|

|

referred

to

au

the

Stand

By

micae

S

Pr.)

=

S

=

S3

=

Ss

BLOCK

DIAGRAM

zs

=

Oo

o

9

z

|

le

38

33

2

0.28

a

Lt

+o

>

wo

J

AZL+

62'vZ0

8z'EZO

oss

svid

:

WR

gay

ag

—

—

—_—__—

—_

61D

...

Q90

122)

fe)

ro)

zu

AGTL

asna

88

3

5

g

x

Q)=<—

joor

viva

a

s

2

r

Pa

w

>

|

XIV

wo

wo

3

WOO-4

(z9)1)

LL~LS

——

eee

ai

ta

as

ici

scam

8~L9

i

eee

ee

ewe

4

mim

(0900M

SIs

‘0909M-X>)

|

ial

a

i

a

a

|

SANOHd

(0S'6v0)

dt

bal

vr‘erv0

ava

~avaH

Bs

re,

Vv

,

l

|

19

avay

38OULS

Ra

Ba

sce

ene

ee

are

49079

|

div

dH

|

viva

Z'10

L--——-4

v0

[13834]

43834

m—-&

Qn

=

ie

no

19

(Q@)

<i

1

|

WALSAS

(E91)

+

RUIGLL

a6

W810

zs'190

ms

wi

w=

|

NI

=

ae

|

10/'3

|

bit

iil

am

+7

+

+

er

|

04

934

ova

and

oe

ee

ee

Ligg

|

O

|

1938

|

Lyn

Asioa}—o-+o

<<

O—>O—{

10/3

|

|

0

SS

——

ee

ene

0

&)

ZO

svig'v

XIBLVIA)

YOLSISIY

OXY

O

LL

ad

V

W/GAAWOS

ZHSLE

KX-We94W4060W6060

CIRCUIT

DESCRIPTION

Microprocessor[CXP82540-105Q]

IC2

Pin

Connection

x

32

ont

mane

>

5

2

.

=

<

=

iw

topo

ee

eSees

Sua

FelMod

cet

ae

A

Wee

eels

Beles

65

66

67

68

69 70

71

72 73 74 75

76

77

78

79

80

\

FLG7

<—

|64

1\—

Cr02B

FLG8

<—

|63

2|—

BINHF

FLSeg15

<—

|62

3|——

BINHR

FLSeg

1

<—

|61

4|—

NOR/A.BIAS

FL

Seg

9

<—

|60

5|—>

OSC

OUT

FL

Seg

2

<—

|59

6|<>

S.BUSY

FLSeg10

«<—

|58

7|<>

S.DATA

FL

Seg

6

<—

|57

8|—

CLK

FL

Seg11

<—

|56

(e)

9|-—>

STB

|

System

IC

FL

Seg

7

<—

[55

a

10|—>

DATA

FLSeg17

<—

|54

=

11)»

B

MECHA.

BIAS

FLSeg

8

<—

|53

=

12|—»

READ

FL

Seg

3

<—

|52

i

13|—>

400/12.5K

FLSeg14

«—

|51

©

14|<+

E2PROM

DATA

FLSeg

3

<—

|50

7

15

|<»

E2PROM

CLK

FLSeg

5

«<—

|49

O

16

|<—

CW

FLSegi2

<—

|48

17|}«—

CCW

|

ENCODEL

FL

Seg

16

<—

|47

18

|}<—

PHA

FL

Seg

4

<—

|46

19

|«-—

PHB

BMECHA

<—

|45

20

|

R.MUTE

BMECHAR/P

«<—

|44

21|—»

L.MUTE

PLAY

A/B

<—

|43

22

|«—

LEVEL.R

INPUT

MUTE

<—

/42

23

|«—

LEVEL.L

7OHSP

<—

{41

24|<—

K3

|

40

39

38

37

36

35

34

33 32

31

30

29

28

27

26

25

|

VEE

ded

ted

i

aye

SRESHESRs

ERE

ERY

*

2

Kime

s

&

as

Cr

A

MECHA

:

B

MECHA

|

KX-W8Q4W4060/6060

CIRCUIT

DESCRIPTION

Pin

Connection

Pin

No.

_

YO

Name

Description

_

1

|

Cro2

B

B-mechanism

Cr02

tape

detection

H:

Cr

O2

3

2

|

B

INH.F

B-mechanism

FWD

recording

prohibition

detection

H:

PROHIBITION

_

3

|

B

INH.R

B-mechanism

RVS

recording

prohibition

detection

H

:

PROHIBITION

4

O

NOR/A.BIAS

OS

C

attenuator

L:

ON

5

O

OSC

OUT

400/12.5KHz

rectangle

wave

output

6

VO

S.BUSY

Serial

BUSY

input/output

7

YO

S.DATA

Serial

data

input/output

8

O

CLK

System

IC

clock

output

a

i

9

o

|

STB

System

IC

strobe

signal

input

0

O

DATA

System

IC

serial

data

output

_

-

11

O

B

MECHA.

BIAS

B

BIAS

ON/OFF

control

H:

ON

12

e)

READ

Read

12.5KHz

H:ON

-

13

O

400/12.5K

Rectangle

wave

filter

selector

L

:

400Hz

14

YO

E2P

DATA

E2PROM

DATA

input/output

15

VO

E2P

CLK

E2PROM

CLOCK

input/output

16

|

ENCODER

CW

Encoder

clock

signal

input

H

:

RETURN

17

|

ENCODER

CCW

Encoder

clock

signal

input

H

:

RETURN

18

|

PHA

A-mechanism

rotation

detection

input

:

19

|

PHB

B-mechanism

rotation

detection

input

_

20

O

R

MUTE

REC

MUTE

CONTROL

hae

21

O

LMUTE

LINE

MUT

CONTROL

-

22

|

LEVEL

R

CCRS,

DPSS

Rch

signal

input

L:ON

23

|

LEVEL

L

CCRS,

DPSS

Lch

signal

input

L:ON

24

I

A

MECHA

KEY{K3)

Action

key

input

25

|

CENTER

KEY(K2)

Action

key

input

7

26

|

B

MECHA

KEY{(K1)

Action

key

input

27

||

TIMER

SW

Slide

switch

input

28

I

DOLBY

SW

Slide

switch

input

-

29

|

DIR

SW

=

Slide_switch

input

ers

:

30

|

RESET

Reset

signal

input

L:

RESET

31~32

|

EXTAL,

XTAL

Clock

oscillator

connection

terminal(10

MHz)

|

33

|

Vs

GND

=

34

ie)

SOLA

A-Solenoid

contro!

H:

ON

35

O

CPMA

A-Capstan

motor

control

H:

ON

36

O

CSPA

A-Capstan

motor

switching

H

:

NORMAL

L:

HIGH

SPEED

37

O

SOLB

dt

B-Solenoid

contro!

H:

ON

|

38

O_

|

CPMB

B-Capstan

motor

control

H:

ON

39

oO

CSPB

B-Capstan

motor

switching

H

:

NORMAL

L:

HIGH

SPEED

40

QO

|

70NSP

EQ

SP

NORMAL

&

BIAS

70%s

H:ON

41

oO

70

HSP

EQ

SP

HIGH

&

BIAS

70#s

H:ON

42

O

INPUT

MUTE

Outside

input

MUTE

switching

H:

ON

43

0

PLAY

AVB

AJB

HEAD

switching

H

:

BHEAD

ON

44

ie]

B

MECHA

R/P-

B

REC/PLAY

switching

H

:

REC

45

O

B

MECHA

ERASE

-[_B

ERASE

HEAD

ON/OFF

switching

H:

ON

]

46~62

O

Seg

17~1

FL

tube

segment

signal

output

H:ON

63~70

O

Grid

8~1

FL

tube

grid

signal

output

H:

ON

7

71

VFDP

FL

tube

driving

voltage(-30V)

H:

ON

72

VDD

Positive

power

supply

terminal(+5V)

_

73

NC

Unusedi(pull

up)

Sen

74

|

VERSION

Model

changeover

L:

KXWw894/W4060_

HH:

KX-W6060

;

75

|

PLAY

A

A-mechanism

head

position

detection

L:

PLAY

|

76

|

PACK

A

A-mechanism

half

detection

L:

Half

present

77

|

Cr02

A

A-mechanism

Cr02

tape

detection

H

:

Cr

Oz

78

I

CE

Backup

detection

terminal

L:

BACK

UP

79

I

PLAY

B

B-mechanism

head

position

L:

PLAY

80

|

PACK

B

B-mechanism

half

detection

L:

Half

present

Pin

Connection

CIRCUIT

DESCRIPTION

KX-W8Q4W4060/W6060

Pin

No.

VO

Name

i

Description

_

-

1

|

Cr02

B

B-mechanism

Cr02

tape

detection

H:

Cr

O2

as.

2

|

B

INH.F

B-mechanism

FWD

recording

prohibition

detection

1:

PROHIBITION

3

I

B

INH.R

B-mechanism

RVS

recording

prohibition

detection

:

PROHIBITION

4

O

NOR/A.BIAS

OS

C

attenuator

_L:

ON

5

O

OSC

OUT

400/12.5KHz

rectangle

wave

output

6

VO

S.BUSY

Serial

BUSY

input/output

-

7

VO

S.DATA

|__

Serial

data

input/output

8

0

CLK

System

IC

clock

output

|

9

e)

STB

System

IC

strobe

signal

input

7

|

10

O

DATA

System

IC

serial

data

output

_

"1

0

B

MECHA.

BIAS

B

BIAS

ON/OFF

control

___H:ON

12

O

READ

Read

12.5KHz

:

H:

ON

A

13

O

400/12.5K

Rectangle

wave

filter

selector

L

:

400Hz

14

VO

E2P

DATA

E2PROM

DATA

input/output

-

15

/O

E2P

CLK

E2PROM

CLOCK

input/output

16

|

ENCODER

CW

Encoder

clock

signal

input

H:

RETURN

7

17

|

ENCODER

CCW

Encoder

clock

signal

input

H

:

RETURN

18

|

PHA

A-mechanism

rotation

detection

input

:

19

|

PHB

B-mechanism

rotation

detection

input

7

-

20

O

R

MUTE

REC

MUTE

CONTROL

r

er

|

21

O

LC

MUTE

LINE

MUT

CONTROL

22

|

LEVEL

R

CCRS,

DPSS

Rch

signal

input

L:ON

23

|

LEVEL

L

CCRS,

DPSS

Lch

signal

input

__L:ON

|

24

I

A

MECHA

KEY(K3)

Action

key

input

25

|

CENTER

KEY{K2)

Action

key

input

_

26

I

B

MECHA

KEY(K1)

Action

key

input

27

I

TIMER

SW

Slide

switch

input

[

28

I

DOLBY

SW.

Slide

switch

input

29

I

DIR

SW

Slide

switch

input

a

30

|

RESET

Reset

signal

input

L:

RESET

31

~32

|

EXTAL,

XTAL

Clock

oscillator

connection

terminal(10

MHz)

-_

33

Vs

GND

7

[34

O

SOLA

__|_AsSolenoid

control

H:ON

_

|

35

O

|

CPMA

A-Capstan

motor

control

H:

ON

|

36

O

CSPA

A-Capstan

motor

switching

H

:

NORMAL

L:

HIGH

SPEED

37

O

SOLB

|__B-Solenoid

control

H:ON

4d

38

Oo

CPMB

B-Capstan

motor

control

H:ON

39

O

CSPB

B-Capstan

motor

switching

H

:

NORMAL

L:

HIGH

SPEED

40

O

70

NSP

EQ

SP

NORMAL

&

BIAS

70s

H:ON

4

L

O

|

70

HSP

_

EQ

SP

HIGH

&

BIAS

704s

H:

ON

|

42

O

INPUT

MUTE

|

Outside

input

MUTE

switching

H:

ON

43

O

PLAY

AVB

AJB

HEAD

switching

H:

B

HEAD

ON

44

O

B

MECHA

R/P

B

REC/PLAY

switching

H:

REC

45

O

B

MECHA

ERASE

B

ERASE

HEAD

ON/OFF

switching

H:ON

A6~62

0

Seg

17~1

FL

tube

segment

signal

output

H:

ON

63~70

oO

Grid

8~1

FL

tube

grid

signal

output

H

:

ON

71

VEDP

FL

tube

driving

voltage(-30V)

H:ON

—

72

VDD

Positive

power

supply

terminal(+5V)

73

NC

Unused(pull

up)

re

74

|

VERSION

Model

changeover

L:

KX-W894

/W4060

HH

:

KX-W6060

75

|

PLAY

A

A-mechanism

head

position

detection

L:

PLAY

76

|

PACK

A

A-mechanism

half

detection

L:

Half

present

77

|

Cr02

A

A-mechanism

Cr02

tape

detection

H

:

Cr

O2

78

|

CE

Backup

detection

terminal

L:

BACK

UP

79

|

PLAY

B

B-mechanism

head

position

L:

PLAY

5

80

|

PACK

B

B-mechanism

half

detection

L:

Half

present

KX-WWBS4W/4060(W6060

CIRCUIT

DESCRIPTION

KX-W894/W4060(

74)

pin

PULL

DOWN)

Function

Voltage.

@K

1

K

2

K

3

Voltage

®

®

OV

B

POWER

A

0.42V

Bo

LS

A

>

1.03V

B

>

CCRS

A

4

1.52V

B

€

N.DUBB

A

hy»

2.00V

B

h»>

H.DUBB

A

€

2.51V

A.RST

ee

LV/BL

3.01V

B.RST

——_.

B

@/11

3.50V

———~

——_-

B

@

4.00V

TEST2

M.ADJ

TEST1

4.50V

S16bit

5.00V

OPEN

OPEN OPEN

KX-W6060(

74)pin

PULL

UP)

Function

Voltage.

K

1

K2

ss

ae

a

@ @

OV

B

Sf

POWER

0.42V

Bo

ILS

1.03V

B

>

MPX

1.52V

B

4

A.BIAS

2.00V

B

D>

CCRS

2.51V

A.RST

H.DUBB

LV/BL

3.01V

B.RST

De

B

@/11

3.50V

N.DUBB

——

B

®@

4.00V

TEST2

M.ADJ

TEST1

4.50V

S16bit

5.00V

OPEN OPEN OPEN

Slide

switch(S26,

$23, S24)

Function

Voltage.

$26

$23

$24

of

@~@

|

@TIMER

@DOLBY

@

DIR

\

OV

PLAY

C

GS

2.5V

REC

B

—

5.0V

OFF

OFF

D

The

function

mode

of

K1~K2

is

change

by

the

voltage

value

(0~5V)

of

#

-com

port(K1~K3)

The

function

mode

of

slide

switch

(S26

S23

S24)is

change

by

the

voltage

value(0~5V)

of

»

-com

port

G)~@9

KX-W8Q4W4060/W"6060

j

‘

:

:

:

3

CIRCUIT

DESCRIPTION

Test

Mode

The

system

enters

this

test

mode

when

KS3(TP3)

and

KR10

(TP4)

are

shorted

together

with

a

diode

and

the

AC

power

plug

connect

to

the

AC

outlet.

Cancel

method

:

Press

the

REC

pause

key

or

disconnect

the

AC

power

plug

from

the

AC

outlet.

(1)

Lamp

display

:

All

the

indicators

turn

on

500

ms

after

the

power

is

switched

on

and

remain

on

for

1500ms.

(2)

Mechanical

switch

display

:

Each

switch

state

is

displayed

on

the

level

meter

when

the

line

muting

signal

is

on.

~c

=

-25

-15

-9

-6

-3

0

+3

(dB)

(A)

L

|

pest

isihy

3

B

OFF

C

HALF

Cr

O2

(B)

R

|

Pea

(iat),

la)

2

5

cD

HALF

F.REC

Cr:O2

R.REC

(3)

The

level

meter

lights

when

the

mechanical

switch

is

set

to

ON.

Deck

A

set

to

the

left

channel

and

deck

B

to

the

right

channel.

(4)

Recording

level

:

The

recording

level

is

changed

to

three

steps(-codB

«>

—25dB

<>

+3dB)

with

the

HI-DUBB/NOR-

DUBB

key.

(5)

Twice

speed

reeerding

:

Recording

is

initiated

at

HIGH

speed

with

the

|.SCAN

Key.

(6)

4

SECONDS

RECORDING

|

Record

for

4

seconds,

retums

to

the

begining,

and

plays

|

back(can

be

repeated).

:

REC

PLAY

RWD

(7)

Playback

speed

switching

:

The

tape

is

played

back

at

high

speed

in

the

forward

direction

by

pressing

the

FF

key.(The

Forward

PLAY,

Reverse

PLAY,

and

RWD

keys

cannot

be

used

for

playback.)

(8)

Input

level

attenuation

:

The

REC

PAUSE

mode

is

entered

by

pressing

the

CCRS

key.

In

this

case,

an

attenuator

is

activated

so

that

the

output

is

OdBm

when

a

signal

is

input.When

deck

A

stops

and

deck

B

has

a

recordable

tape}