JVC RC-X3 Manuale utente

RC-X3

B/E/G

EM

=

oliSe

DIGITAL

AUDIO

r

er

“|

|

Area

Suffix

|

a:

Seen

sam

rte

U.K.

|

In

CE.

senitanieoes

Continental

Europe

|

Gt

agelie

delet

vates

W.

Germany

LN

Contents

Page Page

[1]

Important

for

Laser

Products

..............c..cceceeeeees

2

Wiring

Connections

..............cccececececeeeeeeneeeeeetes

20

Safety

Precautions

...............ccccecccec

cece

teense

eens

3

Standard

Schematic

Diagram

(CD

Control)

.........

21

F@

atures:

«2.18.

cehscbseventeencete

tacidapliocnel

sspua

teed

eanies

sea

4

Location

of

P.C.

Board

Parts

and

Parts

List

........

22

[4]

Specifications

4

[11]

Location

of

P.C.

Board

and

parts

List

Names

of

Control

and

Their

Functions

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

5

(CD

Control

Board)

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

cece

cece cece sree

ee

eee

25

[6]

Location

of

Main

Parts

..........ccccccceeseeseeeeeeees

6

[12]

Block

Diagram

<.220..:.sc.ti.sccccccsadecdessstabiincdeaaders®

27

Removal

of

Main

Parts

..............cccceceecceee

reece

7

[13]

Exploded

View

of

Mechanism

Assembly

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

30

Main

Adjustment

and

Level

Check

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

12

Exploded

View

of

Enclosure

Assembly

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

32

[9]

Standard

Schematic

Diagram

(Tuner)

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

18

[15]

Packing

Illustration

and

Parts

List

..................655

35

Standard

Schematic

Diagram

(Amplifier)

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

19

ACGCeSSONICS.

<i

20s

tel

ecede

bien

katate

es

Back

Cover

No.

1755

June

1988

RC-X3

B/E/G

11]

Important

for

Laser

Products

PRECAUTIONS

1.

CLASS

1

LASER

PRODUCT

2.

DANGER:

Invisible

laser

radiation

when

open

and

in-

terlock

failed

or

defeated.

Avoid

direct

exposure

to

beam.

3.

CAUTION:

Do

not

open

the

rear

cover.

There

are

no

user

serviceable

parts

inside

the

unit,

leave

all

servicing

to

qualified

service

personnel.

4.

CAUTION:

The

compact

disc

player

uses

invisible

laser

radiation

and

is

equipped

with

safety

switches

which

pre-

vent

emission

of

radiation

when

the

disc

holder

is

open

and

the

safety

interlocks

have

failed

or

are

defeated.

It

is

dangerous

to

defeat

the

safety

switches.

5.

CAUTION:

Use

of

controls

of

adjustments

or

perfor-

mance

of

procedures

other

than

those

specified

herein

may

result

in

hazardous

radiation

exposure.

REPRODUCTION

OF

LABELS

AND

THEIR

LOCATION

ADVARSEL-Der

vil

udstrales

DANGER-Invisible

laser

osynlig

laserbestraling

nar

i¢-\olt-\

olan

7al-10

me)

L-1aRe-

Lalo}

Veer:

le-1(-1a-lelal--mele

W-tit-

ys

interlock

defeated.

ningsmekanismen

frigores.

AVOID

DIRECT

EX-

UNDGA

AT

BLIVE

UDSET

POSURE

TO

BEAM.

FOR

LASERBESTRALING.

VND4220-001

ND4221-001

Obs:

Apparaten

innehaller

laser

Komponent

av

hdger

laserklass

an

klass

1.

VAROITUS!

Laite

sisaltaa

laserdiodin,

joka

lahettaa

nakymatatonta

silmille

vaarallista

lasersateilya.

Warning

TO

REDUCE

THE

RISK

OF

FIRE

OR

ELECTRIC

SHOCK,

DO

NOT

EXPOSE

THIS

APPLIANCE

TO

RAIN

OR

MOISTURE.

The

lightning

flash

with

arrowhead

symbol,

within

an

equilateral

triangle,

is

intended

to

alert

the

user

to

the

presence

of

uninsulated

‘‘dangerous

voltage’

within

the

product’s

enclosure

that

may

be

of

suf-

/

Ay

ficient

magnitude

to

constitute

a

risk

of

electric

shock

to

persons.

CAUTION:

TO

REDUCE

THE

RISK

OF

ELECTRIC

SHOCK,

DO

NOT

REMOVE

COVER

{OR

BACK).

The

exclamation

point

withi

uilateral

triang]|

NO

USER-SERVICEABLE

PARTS

INSIDE.

ae

po

within

an

eq

ng

e

REFER

SERVICING

TO

QUALIFIED

SERVICE

PERSONNEL.

is

intended

to

alert

the

user

to

the

presence

of

im-

portant

operating

and

maintenance

(servicing)

in-

structions

in

the

literature

accompanying

the

appliance.

2

(No.

1755)

RC-X3

B/E/G

_|2)

Safety

Precautions

1.

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

used

in

the

original

circuits.

Service

should

be

performed

by

qualified

personnel

only.

2.

Alterations

of

the

design

or

circuitry

of

the

product

should

not

be

made.

Any

design

alterations

of

the

product

should

not

be

made.

Any

design

alterations

or

additions

will

void

the

manufacturer’s

warranty

and

will

further

relieve

the

manufacturer

or

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

(AA)

on

the

schematic

diagram

and

Parts

List

in

Service

Manual.

The

use

of

a

substitute

replacement

which

does

not

have

the

same

safety

characteristics

as

the

recommended

replace-

ment

part

shown

in

the

Parts

List

in

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)

After

re-assembling

the

product,

always

perform

an

isolation

check

on

the

exposed

metal

parts

of

the

product

(antenna

terminals,

knobs,

metal

cabinet,

screw

heads,

headphone

jack,

control

shafts,

etc.)

to

be

sure

the

pro-

duct

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

2

10

W

resistor

paralleled

by

a

0.15

pF

AC-type

capacitor

between

an

exposed

metal

part

and

a

known

good

earth

ground.

‘

;

AC

VOLT

Measure

the

AC

voltage

across

the

resistor

with

the

AC

fa

eng

haa

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

voltage

across

Baa

gy

O-

0.15

uF

AC

TYPE

the

resistor.

Now,

reverse

the

plug

in

the

AC

outlet

and

pe

dae

:

,

Place

this

probe

repeat

each

measurement.

Any

voltage

measured

must

t

rere

peracetic

not

exceed

0.75

V

AC

(r.m.s.).

TEGO

TO

aN

rae

art

This

corresponds

to

0.5

mA

AC

(r.m.s.).

Good

earth

ground

Warning

Please

note

that,

as

a

safety

precaution,

the

wirings

of

the

power

supply

sections

of

RC-X3

and

RC-X3

B/G

are

different,

as

shown

in

the

illustration.

PUT

WIRES

INTO

RIB

BONDING

NOT

TO

FLOAT

RC-X3

B/G

(No.

1755)

3

RC-X3

B/E/G

|

Features

1.

Portable

system

incorporating

multi-function

CD

player.

¢

CD

player

with

program

play

of

up

to

20

tunes/repeat

play/random

play/intro

play

function.

*

Digital

LCD

(Liquid

Crystal

Display)

indicates

the

playback

time

of

each

tune

and

the

number

and

total

playback

time

of

programmed

tunes.

¢

8-cm

(3-3/16'’)

‘’CD

singles’’

capability.

2.

Synchro-record

start

for

CD

recording

convenience.

3.

Double-cassette

mechanism

(Deck

A

for

recording

and

playback,

Deck

B

for

playback).

¢

Metal

and

CrO2

tape

can

be

played

back,

for

superior

tone

quality.

Specifications

Compact

disc

player

section

Type

Signal

detection

system

Number

of

channels

Frequency

response

Signal-to-noise

ratio

Wow

&

flutter

Radio

section

Frequency

ranges

Antennas

Tape

deck

section

Track

system

Motor

Heads

Frequency

response

Signal-to-noise

ratio

Wow

&

flutter

Fast

wind

time

(No.

1755)

:

Compact

disc

player

:

Non-contact

optical

pickup

(semiconductor

laser)

:

2

channels

(stereo)

:

20

Hz~

20,000

Hz

:

76

dB

:

Less

than

measurable

limit

>FM

88—108

MHz

SW

6—18

MHz

MW

540—1600

kHz

LW

150—350

kHz

(B/E)

150—280

kHz

(G)

:

Telescopic

antenna

for

FM

&

SW

Ferrite

core

antenna

for

MW

&

LW

:

4-track

2-channel

stereo

:

Electronic

governor

DC

motor

for

capstan

:

Deck

A;

Hard

permalloy

head

for

recording/playback,

2

gap

ferrite

head

for

erasure

Deck

B;

Hard

permalloy

head

for

playback

:

60

Hz—

14,000

Hz

(with

normal

tape)

:

49

dB

(weighted,

at

1

kHz)

:

0.11%

(WRMS)

:

Approx.

120

sec

(C-60

cassette)

e

Synchro

start

dubbing

function

(normal/high

speed

dubbing).

e

Relay

playback

(from

Deck

B

to

Deck

A).

¢

Microphone

mixing

facility

during

tape

playback.

¢

Full

auto-stop

mechanism.

.

Automatic

level

loudness

control.

¢

Dynamic

sound

reproduction

of

low

level

sound.

®

Clear

sound

reproduction

with

less

distortion

at

high

outputs.

.

CD

OUT

jacks.

General

Speakers

Input

terminal

Output

terminals

DIN

socket

(RC-X3

G)

Power

output

Power

sources

(RC-X3

E

only)

Power

consumption

Dimensions

Weight

Accessory

provided

:

12

cm

(4-3/4’’)

full

range

x

2

(3

Q)

:

MIC

x

1

(Min.

Input

level:

3

mV

(—50

dBv)

Matching

impedance:

200

2—2

kQ)

:

CD

OUT

x

2

(1.0

V/4.3

kQ)

PHONES

x

1

(Output

level:

O—40

mW/32

Q,

Matching

impedance:

8

2—1

kQ)

:

Min.

input

level;

0.6

mV/kQ

Input

impedance;

9

kQ

Output

level;

500

mV

Output

impedance;

6

k2

:16W

(8

W+8

W)

at

3

Q

(Max.)

10

W

(5W+5W)

at

32

(10%

THD)

:

AC

220—240

V/110—120V,

50/60

Hz

DC

12

V

(‘’R20”'

cells

x

8)

>

Ext.

DC

IN12

V

(car

battery

via

optional

CN-332

car

adapter)

:

27

watts

:

591(W)

x

181(H)

x

228(D)

mm

:

Approx.

4.9

kg

without

batteries

:

AC

power

cord

Design

and

specifications

are

subject

to

change

without

notice.

|

RC-X3

B/E/G

5]

Names

of

Control

and

Their

Functions

@2)

Seen

em

————D

IMTTINTTNN

|

ITE

|

REEBEILOSESEER

/

sees

%

|

BERBERS

Fig.

5-1

Disc

holder

Open

button

(Disk

holder)

Display

window

(CD

player

section)

CD

operation

buttons

POWER

switch

TAPE

(PLAY)

switch

Set

this

switch

according

to

the

type

of

tape

to

be

used.

METAL/CrOz2:

(playback

only)

Set

to

this

position

to

listen

to

a

metal

(type

IV)

or

chrome

(type

Il)

tape.

NORMAL:

Set

to

this

position

to

listen

to

a

normal

(type

|)

tape.

FUNCTION

switch

TAPE/DUBBING

e

NORMAL

SPEED:

¢

HIGH

SPEED:

Set

to

NORMAL

SPEED

when

listening

to

a

cassette

or

recording

from

the

external

microphone;

also

set

to

this

position

when

dubbing

at

normal

speed.

Set

to

HIGH

SPEED

when

dubbing

at

high-speed.

Set

to

this

position

when

listening

to

or

recording

from

the

radio.

[CD

]

(RC-X3

B/E)

Set

to

this

position

when

recording

from

or

listening

to

a

CD.

:

CD/DIN

|

(RC-X3

G

only)

Set

to

this

position

when

recording

from

or

listening

to

a

CD

player

or

a

unit

connected

to

the

DIN

jack

on

the

rear

panel.

If

the

CD

player

and

a

unit

connected

to

the

DIN

jack

are

both

playing,

and

the

FUNCTION

switch

is

set

to

CD/DIN,

their

output

sound

will

be

mixed.

TONE

control

VOLUME

control

FM

MODE

switch

STEREO:

Set

to

this

position

when

receiving

FM

stereo

broadcasts.

MONO:

Set

to

this

position

when

FM

stereo

reception

is

obscured

by

noise.

FINE

TUNING

knob

BAND

(LW/MW/SW/FM)

switch

Dial

scale

POWER

indicator

Headphones

jack

(PHONES)

(3.5

mm

dia.

stereo

mini)

Connect

headphones

(impedance

8

Q—1

kQ)

to

this

jack.

The

speakers

are

automatically

switched

off

when

headphones

are

connected.

oO

(2)

(3)

(4)

5)

6)

@

QOS)

GOO)

=

(RC-X3G

only)

(RC-X3E

only)

Cassette

holder

(Deck

A)

Cassette

operation

buttons

(Deck

A)

©

REC:

Press

this

button

to

start

recording.

m

PLAY:

Press

to

play

to

tape.

“@4REW:

Press

to

rewind

the

tape

rapidly.

mr

FF:

Press

to

wind

the

tape

forward

rapidly.

B

/&

STOP/EJECT:

Press

to

stop

the

tape.

Pressing

this

button

when

the

tape

is

stopped

opens

the

cassette

holder.

HE

PAUSE:

Press

to

stop

the

tape

temporarily.

Press

again

to

release

the

pause

mode.

Cassette

operation

buttons

(Deck

B)

>

PLAY:

Press

to

play

the

tape.

“<4

REW:

Press

to

rewind

the

tape

rapidly.

bP

rr:

Press

to

wind

the

tape

forward

rapidly.

@

/4

STOP/EJECT:

Press

to

stop

the

tape.

Pressing

this

button

when

the

tape

is

stopped

opens

the

cassette

holder.

(19)

Cassette

holder

(Deck

B)

@0)

TUNING

knob

Q1)

Telescopic

antenna

for

FM

and

SW

@2)

CD

OUT

jacks

Connect

to

another

stereo

amplifier,

etc.

to

listen

to

the

CD

sound

from

other

equipment.

3)

MIX

MIC

jack

(3.5

mm

dia.

mini)

When

recording

or

mixing

using

a

microphone,

connect

the

microphone

(with

an

impedance

of

200

Q

to

2

kQ)

to

this

jack.

The

microphone

sound

is

recorded

mo-

naurally.

Battery

compartment

cover

DIN

jack

(REC/PB)

(RC-X3

G

only)

BEAT

CUT

switch

(See

page

)

DC

IN

12

V

jack

(

~-®-+

_

)

(RC-X3

E

only)

VOLTAGE

SELECTOR/AC

IN

(AC

input)

jack

Qe)

24)

25)

26)

@7)

28)

(No.

1755)

5

RC-X3

B/E/G

|

6

16]

Location

of

Main

Parts

Tuner

Board

Ass’y

CD

Mechanism

Assy

Amplifier

Board

Ass‘y

Speaker

Cassette

Mechanism

Ass‘y

Fig.

6-1

Amplifier

Board

Ass’y

CD

Mechanism

Ass’y

Tuner

Board

Assy

Fig.

6-2

Power

Supply

Board

Ass’y

AC

Jack

Antenna

Terminal

THE

HE

HEH

Power

Trans.

DC

IN

Jack

DIN

Jack

(RC-X3G

only)

Fig.

6-3

(No.

1755)

RC-X3

B/E/G

Removal

of

Main

Parts

B

Rear

Cabinet

Ass’y

1.

Remove

the

ten

screws

Qa),

(2)

and

G3),

(4)

and

(6)

retaining

the

Rear

Cabinet

Ass’y.

.

Pull

off

the

Rear

Cabinet

Ass’y

from

the

Front

Cabinet

Ass’y.

.

Remove

the

Connector

(CN901)

and

the

Antenna

ter-

minal

(TP1)

from

Amplifier

and

Tuner

Boards.

BCD

Unit

Ass’y

1.

Remove

two

screws

6)

and

@

retaining

both

Cassette

door.

(Fig.

7-2)

.

Remove

two

screws

retaining

both

cassette

door,

(Fig.

7-3).

.

Push

CN-1

connector

and

remove

two

wires

from

Tuner

Board

Ass’y,

and

Amplifier

Board

Ass’‘y.

.

Pull

CD

unit

forward

to

front.

.

Remove

four

screws

@)

and

retaining

CD

Control

Circuit

Board

Ass’y.

(Fig.

7-3)

*

Be

careful

not

to

touch

or

exert

excessive

pressure

on

the

pickup

section.

HCD

Mechanism

Ass‘y

1

3.

.

Remove

CD

unit

from

Front

Cabinet

Ass’y

2.

Remove

four

screws

(9)

and

retaining

CD

Con-

trol

Circuit

Board

Ass’y.

(Fig.

7-3)

Remove

four

screws

27)

}

retaining

CD

Mechanism.

(Fig.

7-4)

@

Tuner

Board

Ass’y

(Fig.

7-3)

1.

2.

p

Remove

tuning

knob.

Remove

two

screws

a3

retaining

front

cabinet

ass’y.

>

.

Pull

out

tuner

board

ass’y.

.

Remove

the

earth

wire.

.

Remove

four

screws

a1)

and

a2

retaining

tuner

chassis.

Fig.

7-4

(No.

1755)

7

RC-X3

B/E/G

H

Amplifier

Board

Ass’y

(Fig.

7-5)

1.

Remove

three

knobs

(power,

tape

select,

function)

retaining

unit.

2.

Remove

three

screws

and

a5)

retaining

front

cabinet

ass’y.

3.

Remove

two

screws

and

a?

retaining

front

cabinet.

4.

Remove

two

connectors

CN-701

and

CN702

from

amplifier

board

ass’y.

--

Warning

When

replacing

heads,

be

sure

to

turn

the

head

wires

of

the

A

and

B

mechanisms

two

turns

to

the

right

before

wiring.

@

Mechanism

Ass’y

1.

Remove

three

screws

and

retaining

Mechanism

B.

(Fig.

7-6)

2.

Remove

two

screws

20

and

21)

retaining

Mechanism

B.

(Fig.

7-7)

3.

Remove

two

screws

Q2)

retaining

Mechanism

A.

(Fig.

7-8)

@

Speaker

Unit

1.

Remove

the

CD

unit

Ass’y

and

the

Tuner

Board

Ass’y

and

the

Amplifier

Board

Ass’y.

2.

Next,

remove

eight

screws

retaining

Front

Cabinet.

@

Power

Supply

Board

Ass’y

(Fig.

7-9)

1.

Remove

two

screws

5)

retaining

power

trans.

2.

Next,

remove

three

screws

6)

retaining

AC

Socket.

8

(No.

1755)

@

CD

Mechanism

Section

ick

up

Board

CD

mechanism

Ass’y

Fig.

7-12

RC-X3

B/E/G

1.

Remove

one

screw

Q)

retaining

Gear.

2.

Remove

the

Gear.

3.

Remove

the

shaft

stopper.

4.

Pull

up

the

pick

up

Ass’y

and

remove

the

Connector.

Pick

up

replacement

can

be

done

without

any

adjustments.

Parts

No.

KSS-150B

(H)-RS

*

To

lessen

the

effects

of

static

electricity,

the

above

part

has

a

soldered

bridge.

Remove

this

soldered

bridge

before

using

the

part.

Soldered

bridge

Pick

up

Board

Pattern

side

Fig.

7-13

Part

No.

KSM-150B-AJRS

(No.

1755)

9

RC-X3

B/E/G

Hi

Location

of

Machanism

Parts

Rewind/F.

Forward

Clutch

Ass’y

Rewind/F.Forward

Clutch

Ass‘y

Front

Section

Erase

head

R/P

Head

Pinch

Roller

Ass’y

P.B

Head

Pinch

Roller

Ass’y

Fig.

7-14

Motor

Rear

Section

‘

Flywheel

Ass’y

Flywheel

Ass’y

Fig.

7-15

@

Motor

bracket

(Recording/playback

deck)

1)

Remove

the

three

screws

q).

2)

Remove

the

chassis

and

Motor

bracket

from

the

button

side.

Then

remove

the

bracket

arm

(panel).

(The

synchro

arm

can

be

removed

from

the

pause

lock.

Return

the

pause

lock

after

it

is

removed

from

the

pro-

per

position.}

M@

Head

section

Fig.

7-16

1)

Remove

the

record/playback

head’s

mounting

screw

(2)

and

loosen

screw

(3).

2)

Remove

the

erase

head

mounting

screw

(4)

and

G).

@

Pinch

roller

1)

Remove

the

pinch

roller

arm

stopper

(6).

Rec

Play

Rew

FF

Stop

Pause

@

Fiywheel

ass’y

Eject

1)

Remove

the

C

washer

@

securing

the

capstan

shaft.

Fig

949

ig.

7-

2)

Pull

out

the

flywheel

ass‘y.

ss

10

(No.

1755)

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