Jvc Td-ws305tn a User manual

MB

TD-W305TN/-W304BK

warcrercsss

-

TD-W205TN/-W204BK

avercrevasss

TD-W77BK

c/su/TD-W75BK

cvs

JVC

SERVICE

MANUAL

TD-WS3O5TN

TD-W304BK

TD-W205TN

TD-W204BK

TD-W77BK

—cvs/u

TD-W75BK

cv

A/B/C/E/G/J/U

Area

Suffix

Bets

6

ayes

ars

Australia

Bion

ae

rege

U.K.

Cor

is,

Sanka

Be

os

ales:

Ws

Canada

E

...

Continental

Europe

Gog

58

Boat

Germany

Se

Bi

Wie

eae

tae

U.S.A.

WB

This

manual

describes

about

four

models

with

versions

of

TD-W305TN/TD-W304BK,

TD-W205TN/TD-W204BK,

TD-W77BK

and

TD-W75

together,

however,

the

contents

are

slightly

different

in

areas

as

noted

in

the

following.

e

C,

J

areas:

For

TD-W305TN/TD-W304,

TD-W205TN/TD-W204BK,

TD-W77BK

and

TD-W75BK

e

U

area:

For

TD-W305TN/TD-W304,

TD-W205TN/TD-W204BK,

TD-W77BK

e

A,B,

E,

G

areas:

TD-W305TN/TD-W304BK,

TD-W205TN/TD-W204BK

@

Main

difference

in

models

and

versions

are:

@

TD-W305TN

and

TD-W304BK:

Reverse

double-deck

type,

but

different

in

exterior

coloring

e

TD-W205TN

and

TD-W204BK:

1-way

double-deck

type,

but

different

in

exterior

coloring

e

TD-W77BK

:

Black

color.

Electric

circuits

of

TD-W305TN/TD-W304BK

are

partially

omitted.

e

TD-W75BK

:

Black

color.

Electric

circuits

of

TD-W205TN/TD-W204BK

are

partially

omitted.

®

Manual

numbers:

No.

4325

for

common

IBs

and

specifications

of

these

models

No.

4325-1

for

TD-W305TN/TD-W304BK

No.

4325-2

for

TD-W205TN/TD-W204BK

No.

4325-3

for

TD-W77BK

No.

4325-4

for

TD-W75BK

TD-W305TN/-W304BK

ABrerE/Gidsi

TD-W205TWN/-W204BK

warcyeras

TD-W77BK

ciu/TD-W75BK

cv

TD-WS3O5TN

TD-W304BK

TD-W205TN

TD-W204BK

TD-W77BK

TD-W75BK

e

For

external

appearance,

see

pages

12

and

13.

@

This

contains

common

things

for

the

above

models

and

versions.

Contents

Page

[1]

Safety

Precautions

....

2.6...

eee

ee

eee

2

Dl

Pastures

vs

Canis

ee

tree

a

eee

e

eet

eee

ears

3

[3]

Instruction

Book

(Extraction).

.........e.008:

4

e

Specifications

2.6...

ee

eee

ee

eee

4

[4]

Names

of

Parts

and

Their

Functions

........--..-

8

[5]

Operation

..

6...

eee

9

@

Playback

.

6...

ee

eee

9

e@

Recording

.....

2.

cee

ete

eee

10

e

Dubbing

.

0...

eee

ee

tees

11

[6]

Location

of

Main

Parts

......----+e+eeeee-

12

C/J/U

A/B/C/E/G/J/U

Safety

Precau

tion

:

.

The

design

of

‘this

product

contains

special

hardware

and

many

circuits

and

components

specially

for

safety

purposes.

For

continued

protection,

no

changes

should

be

made

to

the

original

design

unless

authorized

in

writing

by

the

‘manufacturer.

Replacement

parts

must

be

identical:

to

those

uséd

in

the

original

circuits.

Service

should

be

per-

formed

by

qualified

personnel

only;

=

—

RO

pepe,

FOP

GR

os

ae

_

:

.

Alterations

of

the

design

or

circuitry

of

the

product

should.

not

be

made.

Any

design

alterations

f

the

product

.

-ushould

not’be

made.

Any

design

alterations

or

additions

will

void

the

manufacturer's

warranty

and

will

further,’

relieve

the

manufacturer

of

responsibility

for

personal

injury

or

property

damage

resulting

therefrom.

3.

Many

electrical

and-mechanical

parts

in

the

product

have

special

safety-related

characteristics.

These

characteristics

are

often

not

evident

from

visual

inspection

nor

can

the

protection

afforded

by

them

necessarily

be

obtained

by

using

replacement

components:

rated

for

higher

voltage,

wattage,

etc.

Replacement

parts

which

have

these

special

safety

characteristics

are

identified

in

the

Parts

List

of

Service

Manual.

Electrical

components

having

such

features

are

identified

by

(

A\)

on

the

Schematic

Diagram

and

Parts.

List

in

the

Service

Manual.

The

use

of

a

substitute

replacement

which

does

not

have

the

same

safety

characteristics

as

the

recommended

replacement

part

shown

in

the

Parts

List

of

Service

Manual

may

create

shock,

fire,

or

other

hazards.

|

4.

The

leads

in

the

products

are

routed

and

dressed

with-ties,

clamps,

tubings,

barriers

and

the

like

to

be

separated

from

live

parts,

high

temperature

parts,

moving

parts

and/or

sharp

edges

for

the

prevention

of

electric

shock

and

fire

hazard.

When

service

is

required,

the

original

lead

routing

and

dress

should.

be

observed,

and

it

should

be

confirmed

that

they

have

been

returned

to

normal,

after.

re-assembling.

5,

Leakage

current

check

(Electrical

shock

hazard

testing)

(USA

only)

After

re-assembling

the

product,

always

perform

an

isolation

check

on

the

exposed

metal

parts

of

the

product

(antenna

termianls,

knobs,

metal

cabinet,

screw

heads,

headphone

jack,

control

shafts,

etc.)

to

be

sure

the

product

is

safe

to

operate

without

danger

of

electrical

shock.

:

Do

not

use

a

line

isolation

transformer

during

this

check.

e

Plug

the

AC

line

cord

directly

into

the

AC

outlet.

Using

a

“Leakage

Current

Tester’,

measure

the

leakage

current

from

each

exposed

metal

part

of

the

cabinet,

particularly

any

exposed

metal

part

having

a

return

path

to

the

chassis,

to

a

known

good

earth

ground.

Any

leakage

current

must

not

exceed

0.5

mA

AC

(r.m.s.).

e

Alternate

check

method

Plug

the

AC

line

cord

directly

into

the

AC

outlet.

Use

an

AC

voltmeter

having

1,000

ohms

per

volt

or

more

sensitivity

in

the

following

manner.

Connect

a

1,500

Q

10

W

resistor

paralleled

by

a

0.15

uF

AC-type

capacitor

between

an

exposed

metal

part

and

a

known

good

earth

ground.

Measure

the

AC

voltage

across

the

resistor

with

the

er]

at

VOLTMETER

aving

1000

ohms/volt,

AC

voltmeter.

or

more

sensitivity.)

Move

the

resistor

connection

to

each

exposed

metal

part,

particularly

any

exposed

metal

part

having

a

return

path

to

the

chassis,

and

measure

the

AC

volt-

age

across

the

resistor.

Now,

reverse

the

plug

in

the

AC

outlet

and

repeat

each

measurement.

Any

voltage

measured

must

not

exceed

0.75

V

AC

(r.mss.).

This

corresponds

to

0.5

mA

AC

(r.mss.).

Good

eae

ground

0.15

uF

AC

TYPE

Place

this

probe

on

each

exposed

1500

2

10W

.

metal

part.

Warning

1.

This

equipment

has

been

designed

and

manufactured

to

meet

international

safety

standards.

2.

It

is

the

legal

responsibility

of

the

repairer

to

ensure

that

these

safety

standards

are

maintained.

3.

Repairs

must

be

made

in

accordance

with

the

relevant

safety

standards.

4

5

.

Itis

essential

that

safety

critical

components

are

replaced

by

approved

parts.

.

If

mains

voltage

selector

is

provided,

check

setting

for

local

voltage.

2

(No.

4325)

@

important

Management

Points

Regarding

Safety

.

(Items

Demanding

Special

Safety

Precautions)

“~~

a

-_———e

-

~

7

~

4

-Q905

1C901

Q903

N

@®

The

power

transformer

must

be

checked

by

the

follow-

ing

markings

as

well

as

managed

in

the

fastening

torque

of

the

screws.

Also

confirm

parts

number

according

to

the

parts

list.

:

J:

5216507

(UL

approved

No.)

C

:

VTP52A5-011F

(Marking)

@)

Power

cord

:

Make

sure

of

the

following

markings

and

inspect

exterior

scratch

and

damage.

SPT-1

KP-10

or

SU-1

SPT-1

KP-10

or

SU-1

VDE

KP-419C

BASEC

BS6500

@

Tags

to

bind

power

cords

must

be

soldered

after

being

twisted

in

order

to

prevent

them

from

coming

off.

@

The

end

of

respective

power

cords

is

soldered

in

the

air

and

the

space

from

others

must

be

3.2

mm

or

more

in

the

distance.

6)

The

strain

relief

which

is

specified

as

‘““NIFCO

2271”

Features

1.Double

auto-reverse

mechanism

for

recording/playback

in

deck

B

and

Mt

aBuog

7°

TO-W30d

-

The

DDRP

function

is

possible

oniy

when

used

with

a

suitable

JVC

CD

player.

RB303N

d>

@®

/10-W305

ony

~—

securely

fixes

the

power

cord.

©

The

primary

terminals

and

secondary

terminals

them

of

the

P.C.

board

must

not

be

stuck

out

by

the

round

end

to

keep

space

in

each

side.

Since

the

following

parts

are

heat

generating

ones,

they

must

not

contact

with

electrolytic

capacitors,

wires,

etc.

e

Parts

in

parentheses

(

)

are

inflammables.

Make

sure

of

their

lift-up

condition

for

this

purpose.

e

Parts

in

box

([_—)

are

out

of

JVC

control.

(R952),

(R919),

(R920),

(R913),

(R902),

(R901),

(R931),

(R912),

(R881),

(R875),

(RB403,

RB303)

4:

only

in

TD-W205

and

TD-W204

D902],

[R902],

[a903],

[ic90T],

[905],

[R973],

[O906],

[907],

[R937],

[Heat

sink]

R952

:

Must

not

touch

any

wire.

()

Wires

and

so

forth

must

be

securely

clamped

or

fixed

as

illustrated

on

the

left

(at

five

points)

to

keep

them

from

power

active

parts,

mobile

parts,

heating

units

and

sharp-

edged

parts.

*

:

TD-W75

has

no

need

of

this

clamp.

14,

COMPU

LINK-1/SYNCHRO

terminal

—

playback

in

deck

A

6.

Auto

tape

select

mechanism

(decks

A

*

Dolby

noise

reduction

and

HX

Pro

head-

2.

Full-logic

control

mechanism

in

both

and

B)

room

extension

manufactured

under

license

decks

7.

2-color

peak

level

indicator

from

Dolby

Laboratories

Corporation.

HX

Pro

Griginated

by

Bang

&

Olufsen.

e

High-speed

dubbing

function

reduces

tape

editing

time

by

half.

.

Dolby*

HX

PRO

headroom

extension

.

Dolby*

B

&

C

noise

reduction

system

e

Built-in

MPX

filter

.

DDRP

(Dynamics

Detection

Recording

Processor)

compatibility

8.

Synchro

start

(normal-/high-speed)

"Dolby",

the

double-D

symbol

DO

and

"HX

dubbing

PRO"

are

trademarks

of

Dolby

Laborato-

9.

Continuous

playback

ries

Licensing

Corporation.

10.

INPUT

LEVEL

control

:

.

11.

Digital

tape

counter

12.

Metal

tape

compatibility

13.

PHONES

jack

(No,

4325)

3

Instruction

Book

(Extraction)

~~

SPECIFICATIONS

(A/C/J/U-Version)

:

Stereo

double

cassette

deck

:

4-track,

2-channel

1

4.8cm

(1-7/8

inch/sec)

(Normal)

:

9.5cm

(3-3/4

inch/sec)

(High)

Frequency

response

:

(-20

dB

recording)

Metal

tape;

20

-

17,000

Hz

30

-

16,000

Hz

(+

3

dB)

Chrome

tape;

20

-

16,000

Hz

30

-

15,000

Hz

(+

3

dB)

‘Normal

tape;

20

-

16,000

Hz

30

-

15,000

Hz

(+3

dB)

:58

dB

(S

=

315

Hz,

k3

=

38%

N

=

A-weighted,

metal

tape)

The

S/N

is

improved

by

about

15

dB

at

500

Hz

and

by

max.

20

dB

at

1

kHz

~

10

kHz

with

Dolby

C

NR

on

and

improved

by

5

dB

at

1

kHz

and

by

10

dB

at

above

5

kHz

with

Type

Track

system

Tape

speed

S/N

ratio

DOLBY

B

NR

on.

{mprovement

of

14

dB

at

10

kHz

with

MOL

Dolby

C

NR

on.

Wow

and

flutter

:

0.08%

(WRMS)

Channel

separation

:

40

dB

(1kHz)

Crosstalk

:60

dB

(1

kHz)

Harmonic

distortion

:k3;

0.8%

(metal

tape,

315Hz

0

VU)

:Deck

A;

METAPERM

head

for

playback

x

1

Deck

B;

METAPERM

head

for

recording/

oe

2-gap

ferrite

jead

for

—

erasure;

Combination

head

x

1

:

Electric

governed

DC

motor

for

capstan

x

1,

DC

motor

for

reel

x

1,

DC

motor

for

mechanism

x

1

(For

both

decks

A

and

B)

Fast

forward/Rewind

:

Approx.

110

sec.

with

Heads

Motors

time

C-60

cassette

Input

lorminals

;

INE

IN

:

Input

sensitivity;

80

mV

(x

1

circuit)

(OV

;

)

Input

impedance

;

50

kQ

Output

terminals

ALINE

OUT

:

ain

level;

300

mV

(x

1

Circuit)

(0

VU)

Output

impedance;

5

kQ

PHONES

x

1

:

Output

level;

0.3

mW/

8Q(0

VU

Matching

impedance;

8Q-1k

:

COMPU

LINK-1/

SYN-

Other

terminals

:

CHRO

x

2

Power

requirement

A

version

:

AC

240

V,

50/60

Hz

C/J

version

:

AC

120V,

60

Hz

U

version

2

AC

230/127/110

V,

50/60

Hz

Power

consumption

i

ated

switch

on

With

power

switch

standby

1.6

W

Dimensions

;

(WxHxD)

1435

x

133

x

328

mm

(17-3/16

x

5-1/4

x

12-

15/16")

Weight

+

4.8

kg

(10.6

lbs.)

Accessories

+

plug

cord

..........

2

Remote

cable.........

1

Design

and

specifications

are

subject

to

change

without

notice.

4

(No.

4325)

CARACTERISTIQUES

TECHNIQUES

(version

A/C/J/U)

Type

reo

istrement

stéréo

Systémede

pistes

:4

pistes,

2

canaux

Vitesse

de

défilement

:

4,8cm/sec.

(normale)

9,5

cm/sec.(grande)

Réponse

en

fréquence:

(Enregistrement

&

-20

dB)

Bande

meétal;

.20

a

17.000

Hz

30

a

16.000

Hz

(+3

dB)

*

Bande

chrome;

20

&

16.000

Hz

30

4

15.000

Hz

(+3

dB)

Bande

normale;

20

&

16.000

Hz

30

&

15.000Hz

(+

3

dB)

:58

dB

(S

=

315

Hz,

k3

=

3%,

N

=

A-pondéré,

bande

"métai")

Le

rapport

S/B

est

amélorié

de

15

dB

env-

iron

4

500

Hz

et

de

20

dB

maximum

a

1

kHz

~

20

kHz

avec

le

Dolby

C

NR

en-circuit,

et

amélioré

de

5

dB

a

1

kHz

et

10

dB

environ

a

5

kHz

avec

le

Dolby

B

Rapport

signal/bruit

NR

en

circuit.

Amélioration

du

:4dB

a

10

kHz

avec

le

niveau

de

sortie

max.

Dolby

C

NR

en

circuit.

Pleurage

et

:0,08

%

(WRMS)

scintillement

Séparation

du

canal

:

40

dB

(1

kHz)

Diaphonie

:

60

dB

(1

kHz)

Distorsion

1k3;

0,8%

harmonique

(bande

métal,

315

Hz

0

VU)

Tétes

:

Platine

A;

téte

META-

PERM

pour

lecture

x

1

Platine

B;

téte

META-

PERM

pour

enreg-

istrement/lecture,

Téte

de

ferrite

&

double-

entrefer

pour

l'efface-

men

Téte

combinée

x

Moteurs

:

Moteur

CC

a

asservissement

élec-

tronique

pour

le

cabestan

x

1

Moteur

CC

pour

bobine

x1,

Moteur

CC

pour

méchanique

x

1

(pour

les

deux

platines

AetB

Temps

d'avance

:

Environ

110

secondes

rapide/réembobinage

avec

une

cassette

C-60

Bornes

d'entrée

LINE

IN

:

Sensibilité

d’entrée;

(x

1

circuit)

80

mV

(0

VU)

Impédance

d’entrée;

50

kQ

Bornes

de

sortie

LINE

OUT

:

Niveau

de

sortie;

(x

1

circuit)

300

mV

(0

VU)

impédance

de

sortie;

5

kQ.

PHONES

x

1

:

Niveau

de

sortie;

0,3

mW/8

Q

(0

VU)

Impédance

caracteéris-

tique;

8

Q-

1

kQ

:

Double-platine

d’enreg-

ESPECIFICACIONES

(Version

A/C/J/U)

Tipo

Sistema

de

pista

Velocidad

de

la

cinta

Respuesta

de

frecuencia

Relacion

sefial-ruido

:

Magnetofono

doble

de

cassette:

estéreo

74

pistas,

2

canales

:4,8'cm/seg.

(normal)

9,5

cmiseg.

(Alta)

:(Grabacién

a—-20

dB)

Cinta

de

metal;

220

-

17.000

Hz

30

-

16.000

Hz

(+3

dB).

Cinta

de

.cromo;

°

20

-

16.000

Hz

30

-

15.000

Hz

(+3

dB)

Cinta

normal;

20

-

16.000

Hz

30

-

15.000

Hz

(+3

dB)

:58

dB

(S

=

315

Hz,

k3

=

3%

N

=

A

pondera-

do,

cinta

metalizada)

La

relacién

S-R

se

ha

mejorado

en

aprox.

15

dB

a

500

Hz,

por

un

~

max.

de

20.dB

a

4

kHz~10:kHz

con

Dolby

C

NR

activado

yen5dB

ai

kHzy

’

en

10dB

amas

de

5

Mejora

del

nivel

de

salida

maxima

Fluctuaci6n

y

tremolaci6n

Separacion

de

canal

Diafonia

Distorsién

armonica

Cabezas

kHz

con

Dolby

B

NR

activado.

:4

dB

10

kHz

con

Doiby

C

NR

activado

:0,08

%

(WRMS)

240

dB

(1

nee

:60

dB

(1

kHz.

:k3;

0,8%

(cinta

de

metal,

315

Hz

0

VU)

:

Magnetofono

A;

Cabeza

METAPERM

pe

reproduccién

x

1,

agnetofono

B;

Cabeza

METAPERM

para

jrabacion/repro-

.

ducci3n,

Cabeza

de

ferrite

de

2

entrehier-

-

oS

para

borrado;

Motores

Tiempo

de

avance

répido/rebobinado

Terminales

de

entrada

LINE

IN

(x

1

circuito)

Terminales

de

entrada

LINE

OUT

(x

1

circuito)

PHONES

x

1

Cabeza

para

combi-

nacion

x

1

:

Motor

electrénico

de

CC

para

el

eje

de

arrastre

x

1

Motor

de

CC

para

el

Carrete

x

1

Motor

de

CC

para

de

mechanismo

x

1

(para

ambos

magneté

fonosAyB

:

Aprox.

110

segundos

con

cassette

C-60

:

Sensibilidad

de

entra-

da;

80

mV

Impedancia

de

entrada;

50

kQ2

:

Nivel

de

salida;

300

mV

(0

VU)

Impedancia

de

salida;

5

kQ

:

Nivel

de

salida;

0,3

mW/8

Q

(0

VU)

impedancia

de

salida;

8Q-1kQ

TECHNISCHE

DATEN

(G-version)

Typ

Spursystem

Bandgeschwindigkeit

:

Frequenzgang

:

Stereo-Doppel-

Cassettendeck

:4-Spur,

2-Kanal

4,8

cm/Sek.

(Normal)

9,5

cm/Sek.(High)

:

(20

dB-Aufnahme)

Metaliband;

20

-

17.0000

Hz

(DIN)

30

-

16.000

Hz

(+3

dB)

Chromband;

*

20

-

16.000

Hz

(DIN)

30

-

15.000

Hz

(+3

dB)

Normalband;

20

-

16.000

Hz

(DIN)

30

-

15.000

Hz

(+3

dB)

Signal-Rauschabstand

:58

dB

(S

=

315

Hz,

k3

Verbesserung

des

Hoéchstausgangs-

pegels

Gleichtaufschwank-

ungen

Kanaitrennung

Ubersprechdampfung:

Kiirrfaktor

Képfe

Motoren

Schnellvorlaufzeit/

Rickspulzeit

Eingange

LINE

IN:

(x1

Schaltung)

Ausgange

LINE

OUT

(x

1

Schaltung)

PHONES

x

1

=3%N=

A-gewichtige,

Metallband)

Der

Signal-Rauschab-

stand

ist

um

15

cB

bei

500

Hz

und

um

max.

20

dB

bei

1

kHz

~

10

kHz

mit

eingeschai-

tetem

DOLBY

C

NR

verbessert

und

um

5

dB

bei

1

kHz

und

um

10

dB

Uber

5

kHz

mit

LA

eagle

DOLBY

B

NR.

:4

dB

bei

Re

kHz

mit

eingeschaltetem

OLBY

C

NR.

:£0,2

%

(DIN)

:40

dB

(1

kHz)

60

ob

ae

kHz)

7

K3;

0,8%

(Nietaibane,

315

Hz

VU)

:

Deck

A;

METAPERM-

Kopf

fur

Wiedergabe

x

eck

B;

META-

PERM-Kopf

fiir

Aufnahme/Wieder-

gabe,

2-Spalt

Ferrit-

kopf

fiir

L6schen;

Kombinationskopf

x

4

:

Elektronisch

ges-

teuerter

Gleichstrom-

Motor

ftir

Kapstan

x

1

Spulen-Gleichstrom-

motor

x

1,

Gleichstrommotor

_

fir

Lautwerk

x

1

(fur

beide

Decks

A

und

B)

:

Ca.

110

Sekunden

(C-

60

Cassette)

Eingangsempfindlic-

hkeit;

80

mV

(0

VU)

Eingangsimpedanz;

50

kQ

:

Ausgangspegel;

300

mV

(0

VU)

Ausgangsimpedanz;

§

kQ

:

Ausgangspegel;

0,3

mW/8

Q

(0

VU)

Passende

Impedanz;

8Q-1k

CARACTERISTIQUES

TECHNIQUES

(Version

E)

Type

Systéme

de

pistes

:

Doubie-piatine

d’enregistrement

stéréo

:4

pistes,

2

canaux

Vitesse

de

défilement

:

4,8cm/sec.

(normale)

9,5

cm/sec.(grande)

Réponse

en

fréquence:

(Enregistrement

a

-20

dB)

Rapport

signal/bruit

Amélioration

du

niveau

de

sortie

max.

Pleurage

et

scintillement

Séparation

du

canal

Diaphonie

Distorsion

harmonique

Tétes

Moteurs

Temps

d'avance

rapide/réembobinage

Bornes

d'entrée

LINE

IN

(x

1

circuit)

Bornes

de

sortie

LINE

OUT

(x

1

circuit)

PHONES

x

1

Bande

métal;

20

&

17.000

Hz

(DIN)

30

&

16.000

Hz

(+3

dB)

Bande

chrome;

20

4

16.000

Hz

(DIN)

30

a

15.000

Hz

(43

dB)

Bande

normale;

20

a

16.000

Hz

(DIN)

30

4

15.000Hz

(+3

dB)

:58

dB

(S

=

315

Hz,

k3

=

3%,

N

=

A-pondéré,

bande

"métal")

Le

rapport

S/B

est

amélioré

de

15

dB

environ

&@

500

Hz

et

de

20

dB

maximum

a

1

kHz

~

10.

kHz

avec

Je

Dolby

C

NR

en

circuit,

et

amélioré

de

5

dB

a1

kHz

et

10 dB

environ

a5

kHz

avec

le

Dolby

B

NR

en

circuit.

:4

dB

a

10

kHz

avec

le

Dolby

C

NR

en

circuit.

:£0,2

%

(DIN)

:40

dB

(1

kHz)

:

60

dB

(1

kHz)

:k3;

0,8%

(bande

métal,

315

Hz

0

VU)

:

Platine

A;

téte

META-

PERM

pour

lecture

x

{

Platine

B;

téte

META-

PERM

pour

enreg-

istrement/lecture,

Téte

de

ferrite

a

double-

entrefer

pour

l'efface-

Tren

Téte

combinée

:

Moteur

CC

a

asservissement

elec-

tronique

pour

le

cabestan

x

1

Moteur

CC

pour

bobine

x

1

Moteur

CC

pour

mécanique

x

1

(pour

tes

deux

Seon

Aet

B)

:

Environ

110

secondes

avec

une

cassette

C-

6

:

Sensibilité

d’entrée;

80

mV

(0

VU)

Impédance

d’entrée;

50

kQ

:

Niveau

de

sortie;

300

mV

(0

VU)

Impédance

de

sortie;

5

kQ

:

Niveau

de

sortie;

0,3

mW/8

Q

(0

VU)

Impédance

caractéris-

tique;

8

Q-1kQ

SPECIFIKATIES

(Versie

E)

Type

Systeem

Bandsnelheid

Frekwentiebereik

Signaal/ruisverhouding

:

Maximaal

uitgangsniveau

Wow

en

flutter

Snelheidsfluktuaties

Overspraak

Harmonische

vervorming

Koppen

Motoren

Snelspoeltijd

Ingangen

LINE

iN

(x

1

circuit)

Uitgangen

LINE

OUT

(x

1

circuit)

PHONES

x1

74

dB

bij

:

Stereo

dubbel

casset-

tedeck

:

4-sporen,

2

kanalen

:

4,8

cm/sek.

(Normaal)

9,5

em/sek.

(Hoog)

:(-20

dB

opname)

Metaalband;

20

-

17.000

Hz

(DIN)

30

-

16.000

Hz

(+3

dB)

Chroomband;

20

-

16.000

Hz

(DIN)

30

-

15.000

Hz

(+3

dB)

Normaatband;

20

-

16.000

Hz

(DIN)

30

-

15.000

Hz

(+3

dB)

58

dB

(S

=

315

Hz,

k3

=

3%

N

=

A-gemeten,

metaalband)

De

signaal/ruisver-

houding

wordt

met

ca.

15

dB

bij

500

Hz

ver-

beterd.

Bij

1

KHz~10

kHz

met

de

DOLBY

C

NR

op

“ON”

wordt

de

signaal

ruisverhouding

met

max.

20

dB

ver-

beterd.

De

signaal

/ruisverhouding

wordt

met

5

dB

bij

1

verbeterd

en

‘met

10

dB

bij

meer

dan

5

kHz,

als

de

Dolby

B

NR

schakelaar

tegeli-

jkertijd

op

“ON”

staat.

10

kHz

met

Dolby

C

NR

op

“ON”

:40;2%

:40

dB

(1

kHz)

:60

dB

(1

kHz)

£3;

0,8

%

(metaalband,

315

Hz

OV

U

:

Deck

A;

METAPERM-

kop

voor

weergave

x

1,

Deck

B;

META-

PERM-kop

voor

opname/weergave,

ferriet

wiskop

met

dubbele

spleet;

Kombinatiekop

x

1

:

Elektronisch

gestu-

urde

gelijkstroommo-

tor

voor

de

aandrijving

van

de

capstan

x

1

Gelijk

—

stroommotor

voor

spel

x

1

Gelijk

stroommotor

voor

mechanisme

x

1

peer

deck

A

en

deck

:Ca.

110

sek.

met

een

C-60

cassette;

:Invoergevoellgheid;

80

mV

(0

VU)

Ingangsimpedantie;

50

kQ

:

Uitgangsniveau;

300

mV

(0

VU)

pe

aempenames

:

Uitgangsniveau;

0,3

mMW/8

Q

(0

VU)

Geschikte

impedantie;

8Q-1kQ

(No.

4325)

5

TEKNISKA

DATA

(Version

E)

Typ

Sparsystem

Banhastighet

Frekvensomfang

Stdravstand

Férbattring

av

max

utniva

Svaj

Kanalseparation

Overhérning

Harmonisk

distorsion

Tonhuvuden

6

(No.

4325)

:

Dubbelt

strereokasset-

dack

:

4

spar,

2

kanaler

:

4,8

cm/sek

(normal

hastighet)

9,5

cm/sek

(hég

hastighet)

:

(-20

dB

inspelning)

Metalitband;

20

—

17.000

Hz

(DIN)

30

—

16.000

Hz

(+

3

dB)

Kromband;

20

—

16.000

Hz

(DIN)

30

—

15.000

Hz

(+

3

dB)

Normalband;

20

—

16.000

Hz

(DIN)

30

—

15.000

Hz

(+3

dB)

:

58

dB

(S

=

315

Hz,

k3

=

3%

N

=

A-vagt,

met-

allband)

Stéravstandet

férbat-

tras

med

omkring

15

dB

vid

500

Hz

och

med

max.

20

aB

vid

4

kHz

—-

10

kHz

med

Dolby

C.

Det

for

bat-

tras

med

5

dB

vid

1

kHz

och

med

10

dB

vid

éver

5

kHz

med

Dolby

B.

:

4

dB

vid

10

kHz

med

Dolby

C

=

+0.2%

(DIN)

:40

dB

(1kHz)

=

60

dB

(1

kHz)

2

k3;

0,8%

(metaliband,

315

Hz

0

VU)

:

Dack

A;

METAPERM

huvud

fér

avspeining

x

1,

Dack

B;

META-

PERM

huvud

fér

Autres

prises

“COMPU

LINK-1

/SYNCHRO

x

2

Alimentation

‘

Version

A

:

240

V

CA,

50/60Hz

Version

C/J

:

120

V

CA,

60

Hz

Version

U

:230/127/110

V

CA,

50/60

Hz

Consommation

:17

W

avec

alimenta-

tion

en

circuit

1,6

W

avec

alimenta-

tion

hors

circuit

Dimensions

(Lx

Hx

P)

2435

x

133

x

328

mm

Poids:

4,8

kg

Accessoires:

Fil

€

broches...........

2

Fil

de

télécommande....1

Otros terminales

:

COMPU

.LINK-4

ISYNCHRO

x

2

Alimentacion

Version

A

:

CA

240

V,

50/60

Hz

Version

C/J

:

CA

120

V,

60

Hz

Version

U

:

CA

230

/127/110

V,

50/60

Hz

Consumo

:

17

W

encendido

1,6

W

apagado

Dimensiones

(An

x

Al

x

F)

:

435

x133

x

328

mm

Peso

:

4,8

kg

Accesorios

:

Cordones

con

clavijas

t

eesndaseesiiesctaaevenensseaeee

2

Cable

de

mando

a

dis-

TANCIA

oo...

eee

1

Présentation

et

caractéristiques

modifiables

El

disefio

y

las

especificaciones

estan

sujetos

sans

préavis

a

cambio

sin

aviso.

in/avspelning,

2

spalts

feriithuvud

vor

radering;

Kombinationshuvud

x

1

Motorer

:

Elektroniskt

styrd

lik-

strémsmotor

fér

kap-

stan/spole

x

1

Likstromsmotor

fér

sna

bbspoining

x

1

Likstr6msmotor

for

fack

x

1

(Fér

bade

dack

A

och

B)

Snabbspolningstid

:Ca

110

sek.

(C-60

kassett)

Ingangar

LINE

IN

:

Inkanslight;

(x

1

krets)

80

mV

(0

VU)

Ingangsimpedans;

50

kQ

Utgangar

LINE

OUT

:

Utgangsniva;

300

mV

(0

VU)

(x

1

krets)

Utgangsimpedans;

5

kQ

PHONES,

1

st

:

Utgangsniva;

0,3

mW/8

Q

(0

VU)

Passande

impedans;

8Q-1kQ

Andra

kontakter

:

COMPU

LINK-1/

SYN-

CHRO

x

2

Strémart

:

~

230

V,

50/60

Hz

Effecktforbrukning

:

17

W

(Standby-lage;

1,6

W)

Matt

(B

x

H

x

D)

1435

x133

x

328

mm

Vikt

14,8

kg

Tillbehér

:

Kabel

med

stiftpluggar

ncteaesestuaivamvoseester

taut

2

Raitt

till

Andringar

férbehalles.

Weitere

Anschllisse

Spannungsversorgung

-

Leistungsaufnahme

Abmessungen

(BxHxT)

Gewicht

Zubehér

:

COMPU

LINK-1

/SYN-

CHRO

x

2

Netz

230

V,

50/60

Hz

:17

W

bei

Betrieb

1,6

W

bei

Betriebsbe-

reitschaft

2435

x

133

x

328.

mm

14,8

kg

:

Chinchkabel

2

Fernbedienkabel

....

1

Technische

Anderungen

vorbehalten

!

SPECIFICATIONS

(B-version)

Type

:

Stereo

double

cassette

deck

Track

system

:4-track,

2-channel

Tape

speed

:4.8cm

(1-7/8

inch/sec)

Frequency

response

S/N

ratio

Improvement

of

MOL

Wow

and

flutter

Channel

separation

(Normal)

:9.5cm

(3-3/4

inch/sec)

High

:

("58

de

recording)

Metal

tape;

30

-

16,000

Hz

(+

3

dB)

Chrome

tape;

30

-

15,000

Hz

(+

3

dB)

Normal

tape;

30

-

15,000

Hz

(+

3

dB)

:58

dB

(S

=

315

Hz,

k3

=

3%

N

=

A-weighted,

metal

tape)

The

S/N

is

improved

by

about

15

dB

at

500

Hz

and

by

max.

20

cB

at

1

kHz

~

10

kHz

with

Dolby

C

NR

on

and

improved

by

5

dB

at

1

kHz

and

by

10

dB

at

above

5

kHz

with

DOLBY

B

NR

on.

:4

dB

at

10

kHz

with

Dolby

C

NR

on.

:£0.2%

(DIN)

:60

dB

(1kHz)

Autres

prises

Alimentation

_

Consommation

-

Dimensions

(Lx

H

x

P)

Poids:

Accessoires:

:

COMPU

LINK-1

ISYNCHRO

x

2

:230

V

CA,

50/60

Hz

=

117°W

avec

alimenta-

tion

en

circuit

a,

1,6

W

avec

alimenta-

tion

hors

circuit

:435

x133

x

328

mm

.

4,8-kg

«Fil

&

broches.............

2

Fil

de

télécommande....1

Présentation

et

caractéristiques

modifiables

sans

préavis

Crosstalk

Harmonic

distortion

Heads

:40

dB

(1

kHz)

:k3;

0.8%

(metal

tape,

315

Hz

0

VU):

:Deck

A;

METAPERM

head

for

playback

x

1

Deck

B;

METAPERM

head

for

recording/

playback,

2-gap

ferrite

head

for

erasure;

-Combination

head

x

1

Motors

Fast

forward/Rewind

:

time

Input

terminals

LINE

IN

(x

1

circuit)

Output

terminals

LINE

OUT

(x

1

circuit)

:

Electric

governed

DC

motor

for

capstan

x

1

DC

motor

for

reel

x

1

DC

motor

for

mechanism

x

1

(For

both

decks

A

and

B)

Approx.

110

sec.

with

C-60

cassette

:

Input

sensitivity;

80

mV

(0

VU).

Input

impedance;

50

kQ

:

Output

level;

300

mV

(0

VU)

Output

impedance;

5

kQ

_

Stroomverbruik

Andere

aansluitingen

:

COMPU

LINK-1

ISYNCHRO

x

2

:230

V

wisselstroom,

50/60

Hz

:

Met

toestel

aan;

17

W

Met

toestel

uit-

geschakeld;

1,6

W

Netspanning

Afmetingen

2435

x

133

x

328

mm

-(BxHxD)

Gewicht

—

74,8

kg

Toebehoren

:Penstekkersnoer

oseuteducaseasateazavsesoeetis

2

Afstandsbedienings-

Kabol.s

siciisessiraie

1

Wijzigingen

in

ontwerp

en

specifikaties

voor-

behouden.

PHONES

x

1

:

Output

fevel;

0.3

mW/

82

(0

VU),

Matching

impedance

;

8Q-1kQ

:

COMPU

LINK-1/

SYNCHRO

x

2

:

AC

240

V,

50/60

Hz

:

With

power

switch

on

7W

Other

terminals

Power

requirement

Power

consumption

With

power

switch

standby

1.6

W

Dimensions

(W

xH

x

D)

1435

x

133

x

328

mm

Weight

14.8

kg

Accessories

:

plug

cord

..........

2

Remote

cable.........

1

Design

and

specifications

are

subject

to

change

without

notice.

(No.

4325)

7

[4]

Names

of

Parts

and

Their

Functions

@

POWER

switch

©

Cassette

holder

(deck

A)

©

A

DECK

EJECT

button

@

Indicators

DECKA

“«<

:

This

lights

when

rewinding

the

tape

right

to

left.

PLAY

:

This

lights

when

in

the

playback.

>>

:.

This

lights

when

rewinding

the

tape

left

to

right.

@,»:

Indicates

the

direction

of

tape

travel.

HIGH

DUB

>

:

This

lignts

when

in

the

high-speed

dubbing.

DUB»

:

This

lights

when

in

the

normal-speed

dubbing.

DDRP

:

Lights

when

in

DDRP

operation

mode.

c2)

_:

Indicates

reverse

mode.

DECK

B

<<

:

This

lights

when

rewinding

the

tape

right

to

left.

PLAY

:

Lights

when

the

unit

is in

the

playback

and

record

modes.

This

flashes

when

in

the

record-

pause

mode.

>>

:

This

lights

when

rewinding

the

tape

left

to

right.

REC:

Lights

when

the

unit

is

in

the

record

and

record-pause

modes;

blinks

during

record

muting.

“,®

:

Indicates

the

direction

of

tape

travel.

©

PEAK

LEVEL

INDICATOR

These

indicators

fight

according

to

the

level

of

the

signal

being

recorded

or

the

level

of

the

signal

recorded

on

the

tape.

Note:

0

dB

:

IEC

(DIN)

STANDARD

LEVEL

(250

nWb/m)

0

VU

:

EIAJ

STANDARD

LEVEL

(160

nWb/m)

Da

:DOLBY

NR

STANDARD

LEVEL

@

B

DECK

EJECT

buiton

@

Cassette

holder

(deck

B)

©

INPUT

LEVEL

control

8

(No.

4325)

©

Digital

counter

(A

or

B)

setting

button

When

this

button

is

pressed,

the

digital

counter

indicator

changes

between

deck

Aand

B.

@

Digital

counter

‘The

“A”

indicator

lights

during

counter

indication

of

deck

A.

The

indicator

goes

off

during

counter

indication

of

deck

B.

When

the

power

is

‘turned

on,

the

digital

counter

displays

the

status

of

deck

B.

When

the

power

is

turned

off,

the

counter

is

cleared.

@

Counter

RESET

button

Press

this

button

to

set

the

digital

counter

to

"0000"

@

REVERSE

MODE

switch

Select

the

single

side

or

full

record/play-

back

mode,

or

the

continuous

play

mode.

(See

page

31.)

e=@

:

For

single-side

recording

or

play-

back.

e

=:

To

play

or

record

both

sides

A

and

B.

eC

:

To

play

sides

A

and

B

continuous-

ly.

@

PHONES

jack

Connect

headphones

(with

an

impedance

of

8Q

to

1

kQ).

@

Cassette

operation

buttons

(deck

A)

<i>

(direction):

Press

to

change

the

direction

of

tape

travel.

<<

:Press

to

wind

the

tape

quickly

from

right

to

left.

PLAY:Press

to

play

the

tape.

>>

:Press

to

wind

the

tape

quickly

from

left

to

right.

ll

(stop):

Press

to

stop

the

tape.

(The

tape

automatically

stops

when

it

reaches

the

end.)

@

A>

BSYNCHRO

DUBBING

button

e

NORM

SPEED:

Press

to

perform

nor-

mal-speed

dubbing.

«

HIGH

SPEED:

Press

to

perform

high-

speed

dubbing.

@

DOLBY

NR

switch

Set

to

B

or

C

for

recording

using

the

Dolby

NR

system

or

for

playing

back

a

tape

that

was

recorded

using

the

Dolby

NR

system.

Set

to

OFF

when

the

Dolby

NR

system

is

not

used.

@

Cassette

operation

buttons

(deck

B)

ii

PAUSE:

Press

to

stop

the

tape

tem-

porarily

during

recording

and

play-

back.

Press

the

PLAY

button

to

release

the

pause mode.

©

REC/REC

MUTE:

Press

the

PLAY

but-

ton

while

pressing

this

button

to

_

Start

recording,

and

press

to

leave

an

appropriate

non-recorded

sec-

tion.

(See

page

23.)

@

(stop):

Press

to

stop

the

tape.

Also

press

to

stop

both

decks

simul-

taneously

during

dubbing.

<<:

Press

to

wind

the

tape

quickly

from

right

to

left.

PLAY:

Press

to

start

recording/playback.

>>:

Press

to

wind

the

tape

quickly

from

left

to

right.

<i>

(direction):

Press

to

change

the

direc

tion

of

tape

travel.

Operation

PLAYBACK

POWER

=

TANDBY

DOLBY

NR

<i>

B

OFF

C

Playback

of

deck

A

Operate

in

the

order

of

the

numbers

in

the

illustration.

@

Press

the

POWER

switch

to

set

to

ON

(=).

@

Load

a

prerecorded

cassette

with

side

A

facing

out.

©

Select

the

side

to

be

played

back.

Side

A...

Forward

direction

(PLAY

>>)

Side

B...

Reverse

direction

(@

PLAY)

@

Set

the

DOLBY

NR

switch

to

the

same

position

as

when

the

tape

was

recorded.

@

Select

the

REVERSE

MODE.

(See

page

31.)

@

Press

the

PLAY

button

of

deck

A

to

start

playback.

REVERSE

MODE

ee

[tH]

<_>

Playback

of

deck

B

Perform

steps

@

to

@

of

the

above

proce-

dure

for

deck

B.

Continuous

play

First

set

the

REVERSE

MODE

switch

to:c%..

Load

cassette

tapes

in

both

decks

and

press

the

PLAY

button

of

the

deck

to

be

played

first

for

continuous

play

of

both

decks.

«

When

playback

in

the

reverse

direction

ends,

the

deck

switches

to

the

standby

mode

in

the

forward

direction.

At

this

time,

the

other

deck

starts

playback.

This

oper-

ation

is

repeated

between

decks

A

and

B.

While

one

deck

is

playing

back,

the

cas-

sette

in

the

other

one

can

be

replaced.

This

is

convenient

to

the

long-time

play-

back

of

background

music.

e

Press

the

ll

(stop)

button

of

the

deck

that

is

running

to

stop

continuous

play.

Note:

e

Use

recorded

tapes

with

the

same

noise

reduction

mode

in

decks

A

and

B.

PLAY

(No.

4325)

9

RECORDING

Operate

in

the

order

of

the

numbers

in

the

illustration.

;

e

Make

sure

the

safety

tab

of

the

cassette

has

not

been

broken

off.

Deck

B

only

Nur

Deck

B

Platine

B

seulement

Alleen

deck

B

Magnetdofono

B

solamente

QO

_x2

2]

DOLBY

NR

REVERSE

MODE

e

B

OFF

C

>

Dect

+

<

_

ep

3)

—_

@

Press

the

POWER

switch

to

set

to

ON

(=).

@

Load

a

cassette

for

recording.

@

Set

the

DOLBY

NR

switch

as

required.

@

Select

the

REVERSE

MODE.

(See

page

31.)

@

Select

the

side

to

be

recorded.

@

Press

the

i

PAUSE

button

and

O

REC/REC

MUTE

button

(record-pause

mode}.

REC

lights

and

PLAY

indicator

flashes.

@

Adjust

the

recording

level.

(See

page

25.)

@

Press

to

“0000”.

©

Press

the

PLAY

button

to

start

recording.

WARNING

It

may

be

unlawful

to

record

or

playback

copyrighted

material

without

the

consent

of

the

copyright

owner.

10

(No.

4325)

DDRP

(Dynamics

Detection

Recording

Processor)

recording

DDRP

recording

is

performed

with

suitable

JVC

CD

players

and

the

recording

level

adjustment

is

performed

automatically.

Since

recording

tevel

adjustment

is

performed

automatically

for

different

types

of

tape

(nor-

mal,

CrOz

and

metal),

the

adjustment

of

INPUT

LEVEL

control

is

not

required.

Read

the

instruction

book

of

your

CD

player

carefully.

Erasing

When

recording

on

a

prerecorded

tape,

the

is

automatically

erased

and

only

the

new

program

is

recorded

on

the

tape.

To

erase

a

tape

without

making

a

new

record-

ing...

Follow

the

section

“RECORDING”

but

in

step

@,

set

the

INPUT

LEVEL

contro!

to

MIN.

|

DDRP

(Dynamics

Detection

Recording

Processor)

recording

The

DDRP

function

makes

possible

fully

automatic

recording

when

used

with

a

suit

able

JVC

CD

player.

When

the

DDRP

button

of

a

suitable

JVC

CD

player

is

pressed,

the

’

recording

level

is

first

adjusted

automatically,

then

recording

starts;

it

is

not

necessory

to

start

recording

by

the

normal

procedure.

Notes:

¢

Synchronized

recording

or

DDAP

record-

ing

stops

automatically

when

the

CD

play-

er

stops

playing.

e

Synchronized

recording

does

not

start

except

when

the

record-pause

mode

is

set

by

simultaneously

pressing

the

O

REC/REC

MUTE

and

&l

PAUSE

buttons

in

the

stop

mode.

¢

To

cancel

synchronized

recording

or

DDRP

recording,

press

the

STOP

button

of

the

CD

player

or

cassette

deck.

¢

The

source

is

locked

to

the

CD

position

during

synchronized

recording

or

DDRP

recording

to

avoid

accidental

stops

or

switch-over

to

another

component.

To

switch

over

the

components,

cancel

syn-

chronized

recording

or

DDRP

recording

first.

The

INPUT

LEVEL

control

does

not

function

during

DDRP

recording.

DUBBING

B-DECK

EJECT

e

Synchro

dubbing

@

Press

the

POWER

switch

to

set

to

ON

(

=

).

@

Insert

a

prerecorded

tape

into

deck

A

with

side

A

facing

out

and

press

the

<I>

(direc-

tion)

button

to

select

the

travel

direction.

@

Insert

the

blank

tape

with

side

A

facing

out

into

deck

B,

and

press

the

I>

(direction)

button

to

select

the

side

to

be

recorded.

-

@

Press

to

“0000”.

@

Press

the

SYNCHRO

DUBBING

(NORM

or

HIGH

SPEED)

button

to

start

dubbing.

@

Press

the

Ml

(stop)

button

of

deck

B

to

stop

dubbing.

When

deck

B

stops,

the

dubbing

mode

is.

automatically

released.

e

Synchro

record

muting

When

deck

A

stops

or

enters

any

mode

other

than

the

playback

mode

during

dub-

bing,

deck

B

enters

the

record

mute

oper-

ation

automatically

and

then

enters

the

record-pause

mode.

«

Before

pressing

the

SYNCHRO

DUB-

BING

button

Confitm

that*deck

B

is

in

the

stop

mode

before

starting

dubbing.

Dubbing

and

DOLBY

NR

switch

During

dubbing,

the

same

NR

mode

selected

for

the

playback

cassette

is

applied

to

the

recording

cassette,

regardless

of

the

position

of

the

NR

switch.

Input

level

Recording

is

performed

at

the

same

level

as

the

playback

tape

during

dubbing

regardless

of

the

position

of

the

INPUT

LEVEL

control.

rT

a

rc

~

[~~

—_

~

a

APBSYNCHRO

DUBBING

HIGH

SREED

.

pre

editing

.

Press

the

©

REC/REC

MUTE

button

when

finished

dubbing

a

tune.

Deck

B

automatically

enters

the

record

muting

mode

and

leaves

a

non-recorded

section

of

about

4

seconds

then

enters

the

record-pause

mode.

2.

Press

the

I

(stop)

button

of

deck

A

and

search

for

the

you

want

by

using

the

>>

,

««,

or

PLAY

button.

Then

stop

the

cassette

just

before

the

begin-

ning

of

the

tune.

3.

Press

the

same

SYNCHRO

DUBBING

but-

ton

pressed

before

ihe:

pause

again,

and

dubbing

will

start.

:

Notes

at

dubbing

1.

Normal-speed

dubbing

is

recommended

to

obtain

good

sound

quality.

2.

Television

receivers

placed

close

to

the

deck

may

cause

interference

on

the

recorded

signal

when

the

deck

is

used

in

the

high-speed

dubbing

mode.

If

this

hap-

pens,

either

turn

off

the

television

receiver

or

use

the

normal-speed

dubbing

mode.

@

e

POWER

-

TANDBY

cle

3

5

wt

e0

(No.

4325)

11

[6]

Location

of

Main

Parts

©

TD-W305TN

Power

Transformer

Main

Body

Ass’y

Reverse

Mechanism

Direction

Switch

Direction

Switch

Reverse

Mode

Switch

FL

Board

Ass‘y

Power

Switch

Ass’y

Leaf

Switch

Board

Ass’y

Leaf

Switch

Board

Ass’y

Mechanism

|B]

Ass’y

Machanism

Ass’y

©

TD-W205TN

Power

Transformer

Main

Body

Ass‘y

1-way

Mechanism

Headphone

Jack

FL

Board

Ass’

.

Power

Switch

Ass‘y

.

Leaf

Switch

Board

Ass’y

Leaf

Switch

Board

Assy

Mechanism

Ass'y

Mechanism

Ass'y

12

(No.

4325)

@®

TD-W75BK

Power

Transformer

Main

Body

Ass’y

Direction

Switch

Direction

Switch

Reverse

Mode

Switch

FL

Board

Ass’y

;

Power

Switch

Ass’y

Leaf

Switch

Board

Ass'y

Leaf

Switch

Board

Ass’y

Mechanism

|B}

Assy

Machanism

Ass’y

©

TD-W77BK

Power

Transformer

Main

Body

Ass’y

Headphone

Jack

FL

Board

Ass’y

Ree

SOMES

ROY

Leaf

Switch

Board

Ass’y

Leaf

Switch

Board

Ass’y

Mechanism

B

Ass'y

Mechanism

Ass'y

(No.

4325)

13

Mi

1C701

MB88514B-1366T

VV

VY

rail

mis

|

efile

pNaga0

@)

|

é

B

A,

PLAY

SPEED

B.

PLAY

SPEED

alt

re}

TT

5)

ajul8

lea

>

oe

ai

ile

Se

eo

g—L.

LEVEL

ah

R,

LEVEL

BUGBRUE

r=

£

E

SSS

B. F.

REEL

A. R.

DOOR

B.

F.

DOOR

B.

R.

DOOR

Q44

B.

Re

CAM

B.

F.

CAM

A.

Ae

REEL

A.

Fs

REEL

;

Av

Re

CAM

FePt=|

oo

|

b>

A.

F.

CAM

BIAS

raTee|

|

EC

a4

|

rial

os

BMS:

A.

F.

DOOR

laa

|

os

|

14

(No.

4325)

FUNCTION

ACTIVE

:

as

PORT

SIGNALNAME

|‘VEVyer

FUNCTION/OPERATION

1

EO

GO

H

-

FL

GRID

OUTPUT

(used

in

common

with

DYNAMIC

SCAN

SELECT

OUTPUT)

H

2

-

FL

ANODE

OUTPUT

(For

segment

arrangement,

see

ports

location

diagram.)

H

MECHANISM

A

PB

AMP.

SWITCHING

OUTPUT

Mechanism

A

in

PB:

“’H”

H

MECHANISM

B

PB

AMP.

SWITCHING

OUTPUT

Mechanism

B

in

PB:

“H”

H

In

Dubbing

mode

(both

in

Normal

speed

dubbing

and

High

speed

dubbing)

:

‘‘H”’

4

In

High

speed

dubbing

:

“L”

CLOCK

OUTPUT

for

Port

Expander

(clock

pulse

width

:

500

ns

or

more.

)

(For

timing,

see

another

section.)

DDRP

AMP

SWITCHING

OUTPUT

ON:

“H"

OFF:

“L”

®

With

input

of

DCS

““B6’":

ON

®@

With

input

of

DCS

’B7"'/At

the

end

of

Recording

:

OFF

@

When

DDRP

of

DYNAMIC

SCAN

INPUT

is

‘H”

:

No

operation

DATA

OUTPUT

for

Port

Expander

(For

timing,

see

another

section.)

MUSIC

DETECTION

INPUT

for

Music

Scan.

When

requested

music

is

detected

:

'’H”

[Music

Detection

Time]

@

Presence

(being

played)

of

requested

music

is

judged

when

’‘H”’

continues

for

150

msec

or

longer

after

‘’L”’

period

of

10

msec

or

longer.

e@

Absence

(play

finishes)

of

requested

music

is

judged

when

“L”

continues

for

10

msec

or

longer

after

’’H”

period

of

150

msec

or

longer.

e@

Music

detection

is

prohibited

for

200

msec

after

MS

mode

starts.

@

No

operation

in

W305/W205

mode.

33

|

RO

A.F.

CAM

NORMAL

ROTATION

OUTPUT

of

Mechanism

A

Cam

Motor.

R.

PLAY

>

F.

PLAY

:

“H”

28

E24

CLOCK

le

oe

DDRP

H

S

ieen

30

E26

DATA

31

E27

MS

SIG

H

34

A.R.

CAM

H

REVERSE

ROTATION

OUTPUT

of

Mechanism

A

Cam

Motor.

F.

PLAY

>

R.

PLAY

:

“H”

ae

NORMAL

ROTATION

OUTPUT

of

Mechanism

A

Reel

Motor.

F.

PLAY,

“D>”:

“H”

36

A.R.

REEL

REVERSE

ROTATION

OUTPUT

of

Mechanism

A

Reel

Motor.

R.

PLAY,

*<k]”

:

““H”

37

|

R4

B.F.CAM

|

_H__-|

NORMAL

ROTATION

OUTPUT

of

Mechanism

B

Cam

Motor.

R.

PLAY

>

F.

PLAY

:

“H”

[ss

|

R5

|

B.R.cAM

|

H__

|

REVERSE

ROTATION

OUTPUT

of

Mechanism

8

Cam

Motor.

F.

PLAY

>

R.

PLAY

:

“H’’

39

R6

B.F,

REEL

H

NORMAL

ROTATION

OUTPUT

of

Mechanism

B

Reel

Motor,

F.PLAY,

*DD>”:

“H”

40

R7

B.R.

REEL

H

REVERSE

ROTATION

OUTPUT

of

Mechanism

B

Reel

Motor.

R.

PLAY,

*<KI”:

“H"

41

E37

DCS

IN

L

DCS

INPUT.

Inverted

input

signal

of

DCS

line

(For

detail,

refer

to

another

section.)

42

E36

DCS

OUT

L

DCS

OUTPUT.

Externally

interverted

output.

(For

detail,

refer

to

another

section.)

47

E35

B.

PLAY

SPEED.

H

Mechanism

B

REEL

MOTOR

REGULATION

OUTPUT

(SPEED

CONTROL}

When

Mechanism

B

in

PLAY,

REC/PLAY,

REC

MUTE,

N.S.

DUB,

H.S.

DUB

:

“H’”’

48

E34

A.

PLAY

SPEED

H

Mechanism

A

REEL

MOTOR

REGULATION

OUTPUT

(SPEED

CONTROL)

When

Mechanism

A

in

PLAY,

N.S.

DUB,

H.S.

DUB:

“H”

ae

iol

Diet

—

|Reh

)

eVEL

METER

A/D

INPUT

(For

detail,

refer

to

another

section.)

54

|

ANO

L.

LEVEL

-

L-ch

55

R8

B.

CPLS

MECHANISM

B

COUNTER

PULSE

INPUT

:

;

:

]

for

Reel

End

Detection,

Electronic

Counter

56

RQ

A.

CPLS

MECHANISM

A

COUNTER

PULSE

INPUT

@

Pulse

whose

minimum

edge

width

is

3.5

msec

must

be

received

without

fail.

@

Auto

Stop

Period:

When

COUNTER

PULSE

does

not

vary

in

reel

motor

rotation

for

the

following

period,

Auto

Stop

mode

takes

place:

In

Fast

Foward

operation

(

<j,

DD

,

MS):

1.5

sec

{in

Normal

operation

(PLAY,

REC/PLAY)

:

15

sec

In

normal

operation,

counting

is

not

operated

for

3.5

sec

after

start

of

reel

motor

and

auto

stop

takes

place

1.5

sec

after

the

non-counting

period

for

3.5

sec.

(No.

4325)

15

EXPLANATION

OF

FL601

Respective

indications

by

the

FL

indicator

are

as

shown

in

the

figure.

When

all

or

some

indications

do

not

go

on,

inspect

the

cause

in

the

following

manner.

1.

Confirm

power

supply

to

F1

and

F2.

2.

When

characters/symbols

shown

in

the

figure

do

not

light,

check

up

according

to

the

anode

and

grid

matrix

table.

[f

both

anode

and

grid

have

high

potential,

it is

considered

that

the

condition

is

generally

good

and

the

trouble

results

from

fault

in

the

FL

tube.

terminal

of

the

FL

tube.

4.

Example

of

trouble:

G4

L

dB

#20

2

«=6©10

siz6

4/0VU

2

DO

O

2

+4

R

[A]

HIGH

DUB

[BJ

44s:

S72

>

DDRP

44

REC

pp®

<4

PLAY

B>C

4—

)

<4

PLAY

b>

$3

$4

S6

$5

6$9

Sjo0

G3

ANODE

CONNECTION

>

a

Qa

yl

rl]

>rie

‘

OT

Ni=

nD

bh

w

fee]

N

&

Ag

=

rs)

JVC

VICTOR

COMPANY

OF

JAPAN,

LIMITED.

AUDIO

PRODUCTS

DIVISION

MAEBASHI

PLANT

“PLAY”

does

not

light.

Make

sure

of

high

level

both

at

A5

and

G3.

10-1,

1-chome,

Ohwatari-cho,

Maebashi-city

371,

Japan

@

3.

Measurement

of

terminal

voltage

should

be

done

at

the

Printed

in

Japan

—H0212

—S—

TD-W304BK/-W305TN

wercreven

TD-W304BK

TD-W305TN

wercre/av

SERVICE

MANUAL

STEREO

DOUBLE

CASSETTE

DECK

No.

4325-1

TD-W305

and

TD-W304

are

the

same

model

but

different

only

in

the

exterior

coloring.

TD-W305

is

in

titanium

color

while

TD-W304

is

in

black.

For

servicing,

refer

to

the

parts

comparison

table

on

page

22.

Contents

Page

:

Page

[1]

Removal

of

Main

Parts.

..........50

202200

ee

2

[6]

Location

of

Main

Board

Parts

and

Parts

List

.....

16

e

Enclosure

Section

.........

2.020

eee

2

ao

Main

Board

fox

cs

ea

Gs

dhabewe

Red

towws

16

e

Mechanism

Section...

......

0000

eee

4

e

Other

Board/Power

Supply

Board

...........

20

[2]

Main

Adjustments...

6...

6.

eee

ee

eee

ee

eens

8

[7]

Exploded

View

of

Enclosure

Assembly

.........

21

[8B]

Block

Diagram

1.1...

eee

ee

eee

ee

12

[8]

Exploded

View

of

Mechanism

Component

Parts...

24

[4]

Wiring

Connections

.....

2...

eee

13

[GS]

Packing...

2...

eee

ee

ett

25

[5]

Standard

Circuit

Diagram

........-.--

ee

eee

14

[1]

Removal

of

Main

Parts

©

~

Wi

Enclosure

Section

ola:

So

™

Top

cover

1)

Remove

four

screws

@

retaining

the

top

cover

from

both

sides.

2)

Remove

two

screws

@)

retaining

the

top

cover

from

the

back

side.

;

®

Front

panel

assembly.

1)

Remove

the

top

cover.

2)

Remove

two.

screws

retaining

the

foot.

of

the

front

side.

:

ae

3)

Remove

four

screws

3)

retaining

the

mechanism

holder

to

chassis.

4)

Remove

three

screws

@

retaining

the

front

panel

ass’y

from

bottom

side.

;

5)

Release

the

front

panel

ass’y

from

two

pawls

in

the

front

and

bottom

sides

and

draw

it

to

the

front

side.

:

8p

™

Mechanism

assembly

24

Main

Board

@—{15)

(for

deck

A

anddeck

B

in

common)

ae

Although

the

mechanism

assembly

can

be

removed

without

eo

detaching

the

front

panel

ass’y,

it is

recommended

to

de-

2

CNS

RENCE

tach

the

front

panel

ass’y

to

do

the

work

with

ease.

5

Geni

eNO

AINE

ones

1)

Remove

four

screws

®

and

©)

or)

and

(6!)

from

the

corners

of

the

mechanism.

,

2)

Open

the

door

and

remove

the

mechanism

assy.

(At

that

time,

door

lock

arm

spring

and

door

lock

arm

are

removed

together

with.)

3)

For

moving

the

mechanism

ass’y

only,

disconnect

the

following

wirings.

a)

Mechanism

ass’y

side

Top

side

connector

of

the

cam

switch

board

Connector

of

the

motor

board

b)

Main

board

ass’y

side

-

Disconnect

wire

coming

from

the

leaf

switch

from

CN710

and

CN711.

(In

case

of

deck

A,

disconnect

from

CN705.)

Fig.

1-3

{

Pull

2

Push

1

Pull

2

Push

up

with

a

screwdriver,

etc.

1

Fig.

1-4

2

(No.

4325-1)

TD-W304BK/-W305TNaacreciu

«|

Power

Switch

'

TD-W305

R.

Mode’}

only

Switch

|

oll

Volume

i

Dd)

_|

TD-W305

J

only

Headphone

Jack

=

Volume

assembly

1)

Remove

the

volume

knob

while

pulling

it.

2).

Remove

two

screws(7)

retaining

the

board

ass’y.

How

to

engage

the

lock

arm

spring

Mechanism

'

s

Ass'y

=

FL

indicator

assembly

_

1)

Pull

F.

card

cable

from

the

main

board

for

disconnec-

tion.

2)

Remove

two

screws(8)

retaining

the

FL

holder.

=

Power

switch

assembly

1)

Remove

two

screws

(9)

retaining

the

switch.

2)

Switch

knob

can

be

removed

by

pulling

the

switch

ass’y.

Engage

with

;

door

hook,

=

Reverse

mode

switch

assembly

(TD-W305/TD-W304

only)

1)

Remove

two

screws

@

and

(2)

retaining

the

reverse

mode

switch

ass’y.

™

Headphones

jack

assembly

(TD-W205/TD-W204)

1)

Remove

the

front

panel

ass’y.

ineare

tip:

Hk

2)

Remove

a

screw

@

retaining

the

jack

ass’y.

the

hole

of

ene

M.

holder.

=

Dolby

NR

switch

assembly

Fig.

1-6

1)

Remove

the

deck

A

anddeck

B.

2)

Remove

two

screws

retaining

the

eject

holder

assy.

Remove

before

replacing

mechanism

button

or

operation

switch.

3)

Remove

a

screw

retaining

the

switch

board.

®

Mechanism

operation

switch

board

assembly

1)

Remove

the

front

panel

ass’y.

2)

Remove

the

mechanism

ass’y.

3)

Detach

the

mechanism

bracket

from

the

cassette

holder,

and

remove

the

cassette

holder

from

the

front

panel

ass’y.

’

.

4)

Remove

six

screws

@

retaining

the

switch

board.

=

6Main

board

assembly

1)

Remove

four

screws

retaining

jack,

heat

sink

and

synchro

jack

from

the

rear

side.

;

2)

Disconnect

power

connector

CN901.

3)

Remove

four

screws

45)

retaining

the

main

board

ass’y.

Draw

the

board

ass’y

slightly

to

the

front

side

and

raise

it

by

the

rear

side.

~ -

(No:

4325-1)

3

JVC TD-WS305TN A User manual

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