Technics SL-Q303 Manual de usuario

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ORDER

NO.

$D81061948C4

Service

Manual

CQUARTZ

Turntable

System

SL-Q303

Areas

[PA],

[

[PE],

],

[PC]

*

[PA]

is

available

in

far

East

PX.

*

(PE]

is

available

in

European

Military.

=

*

{PC]

is

available

in

European

Audio

Club.

[PC]

*The

colors

of

this

model

included

silver

and

black.

*

The

black

type

model

is

provided

with

(K)

in

the

Service

Manual.

Please

use

this

manual

together

with

the

service

manual

for

model

No.

SL-Q303/SL-0303

(K),

Order

No.

SD81061944C8.

Specifications

Specifications

are

subject

to

change

without

notice

for

further

improvement.

Weight

and

dimensions

shown

are

approximate.

@

General

®@

Tonearm

section

Power

supply:

~110-120/220-240V,

50

or

60

Hz

Type:

Universal

tonearm

Power

consumption:

7

W

S"'

shaped

tubular

arm

Dimensions:

43x

10.6x37.5cm

Static

balanced

type

(WxHxD)

(16-15/16

''x4-3/16''x

14-3/4'')

Effective

length:

230

mm

(9-1/16"')

43x

37x42

cm

Overhang:

15

mm

(19/32"’)

(16-15/16"'

x

14-9/16"

x

16-17/32"")

Tracking

error

angle:Within

2°32’

at

the

outer

groove

Maximum

height

when

top

of

30

cm

(12"’)

record

(dust

cover)

is

open.

Within

0°32’

at

the

inner

groove

Weight:

6.5

kg

(14.3

Ib.)

of

30

cm

(12"))

record

Friction:

Less

than

7

mg

(lateral,

vertical)

@

Turntable

section

Effective

mass:

11

g

(without

cartridge)

Type:

Quartz

direct

drive

Stylus

pressure

Automatic

turntable

adjustment

range:

0-2.5

9

Automatic

start

Applicable

cartridge

Auto

return

weight

range:

3.5—7.5g

Auto

stop

Repeat

play

Headshell

weight:

7.5g

Manual

play

Phono

cable

Drive

method:

Direct

drive

capacitance:

135

pF

Motor:

Brushless

DC

motor

;

Drive

control

method:

Quartz-phase-locked

control

@

Cartridge

section

;

.

Turntable

platter

Aluminum

die-cast

Type:

Moving

magnet

stereo

cartridge

Diameter

31.2

cm

(12-9/32"

inches)

Frequency

response:

20

Hz

to

25

kHz

Output

voltage:

2.5

mV

1

kHz,

Turntable

speeds:

33-1/3rpm

and

45

rpm

5

cm/s.

zero

to

peak

lateral

Wow

and

flutter:

0.012%

WRMS«

eat

0.025%

WRMS

(JIS

C5521)

velocity

+0.035%

peak

(IEC

98A

Weighted)

(7

Lane

De

TBI

ae

S00)

*This

rating

refers

to

turntable

assembly

alone,

ee

sis

velocity

|

excluding

effects

of

record,

cartridge

or

tonearm,

Channel

Sorararion:

22

dB

1

kHz

butincluding

platter.

Measured

by

obtaining

signal

Channel

balance:

Within

2

dB

at

1kHz

from

built-in

frequency

generator

of

motor

assembly.

Load

impedance:

47

kQ

to

100

ke

Stylus

pressure:

1.75+0.25

g

(17.5+2.5

mN)

Replacement

stylus:

EPS-74STSD

(ATN71)

Rumble:

—

56

dB

(IEC

98A

Unweighted)

~

78

dB

(IEC

98A

Weighted)

Panasonic

Tokyo

@

i

echnics

Matsushita

Electric

Industrial

Co.,

Ltd.

Matsushita

Electric

Trading

Co.,

Ltd.

1-2,

1-chome,

Shinbashi,

Minato-ku,

Tokyo

105

Japan

P.O.

Box

288,

Central

Osaka

Japan

SL-Q303

@

REPLACEMENT

PARTS

LIST

Change

of

Part

No.

(Ki

-

marked

parts

are

used

for

black

type

only.

SL-Q303/0303

(K)

SL-@303/0303

(K)

(ORDER

NO.

SD81061944C8)

[PA,

PE,

PC]

Part

Name

&

Description

Remarks

at

Ee

CAPACITORS

E

A473MZ

Polyester,

250VAC

CQE2A473M

ECQE2A473Mz

|

Po

yester

‘

ECQU2A473MF

0.047uF,

+

20%

[

CABINET

and

CHSSIS

PARTS

SJA141

SFPEN3302

was

[|

Adan

SSCS

SJA139

SJA83

AC

Cord

1

SJA137

SFUMQ34NO09

FUMQ@34N

Bushing,

A

,

SFUMQ34NO1

s

09

|

ushing,

AC

Cord

She

SFNNQ34S01

SFNN@34P01

[PA,

PE]

Name

Plate

|

1

O

SFNNQ34G02

|

ta

ae

SFNNQ@34P01

[PC]

Name

Plat

i

1

O

e e

SFNNQ34R01

|

ame

Pla

TONEARM

PARTS

ss

|_|

ePc—u25s

EPC74SMAD

Cartridge

|__|

ePs—25cs

EPS74STSD

Stylus

1

SCREW

and

NUT

1n25

|

|

sFczvssoo

SFPEV7803

Screw,

Cartridge

2

Nut,

Cartridge

ACCESSORIES

SFNUQ34P01

Instructions

Book,

Printed

Matter

1

oO

SFNUQ34S01

Deletion

QJPO603S

Addition

2

Pin

Plug

0

Adaptor,

Gimens

1

PACKING

PARTS

SFNUQ34G01

O

|

SFHPQ34m01 SFHPQ34M01

SFNUQ34Xx01

SFDK119118

SFHPQ34M21

[PC]

only

©

|

SFHP@34C01

(Ki

SFHPQ34M21

Carton

Box

(Silver)

1

|

Carton

Box

(Black)

1

Printed

in

Japan

81070450)

TK/YW

*

The

colors

of

this

model

include

silver

and

black.

*

The

black

type

model

is

provided

with

(K)

in

the

Service

Manual.

English

Specifications

@

General

Power

supply:

~110-—120/220-240V,

50

or

60

Hz

Power

consumption:

7W

Dimensions:

43x

10.6x37.5cm

(WxHxD)

(16-15/16"'

x4-3/16''x

14-3/4"')

43x

37x42cm

(16-15/16''x

14-9/16"'

x

16-17/32"')

Maximum

height

when

top

(dust

cover)

is

open.

Weight:

6.5

kg

(14.3

Ib.)

@

Turntable

section

Type:

Quartz

direct

drive

Automatic

turntable

Automatic

start

Auto

return

Auto

stop

Repeat

play

Manual

play

Drive

method:

Direct

drive

Motor:

Brushless

DC

motor

Drive

control

method:

Quartz-phase-locked

contro!

Turntable

platter

Aluminum

die-cast

Diameter

31.2

cm

(12-9/32"’

inches)

33-1/3

rpm

and

45

rpm

0.012%

WRMS»*

0.025%

WRMS

(JIS

C5521)

+0.035%

peak

(IEC

98A

Weighted)

Turntable

speeds:

Wow

and

flutter:

‘Technics

Service

Manual

ORDER

NO.

SD81061944C8

COUARTZ

Turntable

System

SL-

Q303

[E],

[EK],

[XL],

[EG],

[EB],

[EF],

[XA],

Dea

[EH],

(Ei),

[EC]

SL-Q303(K)

[E],

[XL],

[XA],

=

Areas

*

[E]

is

available

in

Switzerland

and

Scandinavia.

*

[EK]

is

available

in

United

Kingdom.

*

[XL]

is

available

in

Australia.

*

[EG]

is

available

in

F.R.

Germany.

*

[EB]

is

available

in

Belgium.

*

[EF]

is

available

in

France.

*

[XA]

is

available

in

Southeast

Asia,

Oceania,

Africa,

Middle

Near

East

and

Central

South

America.

*

[XM]

is

available

in

Central

South

America.

*

[EH]

is

available

in

Holland.

*

[Ei]

is

available

in

Italy.

*

[EC]

is

available

in

Czechoslovakia.

Specifications

are

subject

to

change

without

notice

for

further

improvement.

Weight

and

dimensions

shown

are

approximate.

*This

rating

refers

to

turntable

assembly

alone,

excluding

effects

of

record,

cartridge

or

tonearm,

but

including

platter.

Measured

by

obtaining

signal

from

built-in

frequency

generator

of

motor

assembly.

Rumble:

—56

dB

(IEC

98A

Unweighted)

~

78

dB

(IEC

98A

Weighted)

@

Tonearm

section

Universal

tonearm

“S"

shaped

tubular

arm

Static

balanced

type

Effective

length:

230

mm

(9-1/16"')

Overhang:

15

mm

(19/32"’)

Tracking

error

angle:Within

2°32’

at

the

outer

groove

of

30

cm

(12"')

record

Within

0°32’

at

the

inner

groove

of

30

cm

(12"')

record

Less

than

7

mg

(lateral,

vertical)

11g

(without

cartridge)

Type:

Friction:

Effective

mass:

Stylus

pressure

adjustment

range:

0-2.5g

Applicable

cartridge

weight

range:

(See

page

14)

Headshell

weight:

7.5g

Phono

cable

capacitance:

135

pF

Matsushita

Electric

Trading

Co.,

Ltd.

P.O.

Box

288,

Central

Osaka

Japan

@

Cartridge

section

Type:

Frequency

response:

Channel

separation:

Channel

balance:

Compliance

(dynamic):

Stylus

pressure:

22

dB

at

1

kHz

Within

1.8

dB

at

1

kHz

10x

10-6

cm/dyne

at

100

Hz

1.75+0.25g

(17.5+2.5

mN)

47

kQ)

to

100

kQ)

Moving

magnet

10

H2~35

kHz

20

Hz~10

kHz

+1

dB

2.5

mV

at

1

kHz

Output

voltage:

5

cm/s.

zero

to

peak

lateral

velocity

(7mV

at

1

kHz

10

cm/s.

zero

to

peak

45°

velocity

[DIN

45 500])

Deutsh

@

Allgemeine

Daten

Stromversorgung:

~110-120/220-240

V,

50/60

Hz

Wechselstrom

Leistungsaufnahme:

7W

Abmessungen

(BxHxT):

43x10,6x37,5cm

43x

37x42

cm

Maximale

Hohe

bei

geéffnetem

Oberteil

(Staubabdeckung).

Gewicht:

6,5

kg

@

Plattenspieler

Typ:

Quarz-Direktantrieb

Automatischer

Plattenspieler

Startautomatik

Ruickfihrautomatik

Stopautomatik

Wiederhol-Betrieb

Manueller

Betrieb

Direktantrieb

Kollektorloser

Gleichstrommotor

Quarz-Steuerung

QPL

Aluminium-SpritzguB

Durchmesser

31,2

cm

Antrieb:

Motor:

Antriebsregel-Methode:

Plattentelier:

Piattenteller-

Drehzahlen:

33-1/3

und

45

U/min

Gleichlaufschwan-

kungen:

0,012

%

WRMS*

0,025%

WRMS

(JIS

C5521)

+0,035%

Spitze

(IEC

98A

bewertet)

“Diese

Nennleistung

bezieht

sich

auf

das

Laufwerk-Bauteil

allein,

ausschlieBlich

Einflisse

von

Schallplatte,

Tonab-

nehmer

oder

Tonarm,

aber

einschlieBlich

Plattenteller.

Gemessen

anhand

von

Signalen

vom

eingebauten

Frequenz-

generator

des

Motorbauteils.

Rumpel-Fremd-

Spannungsabstand:

—56

dB

(IEC

98A

unbewertet)

Rumpel-Gerausch-

Spannungsabstand:

—78

dB

(IEC

98A

bewertet)

TECHN

ISCHE

DATEN

Anderungen

de

technischen

Daten

vorbehalten.

Die

angegebenen

Gewichts-

und

Abmessungsdaten

sind

circa

Werte.

Load

impedance:

Weight:

Replacement

stylus:

@

Tonarm

Typ:

Effektive

Lange:

Uberhang:

Spurfehlwinkel:

Lagerreibung:

Effektive

Masse:

Auflagekraft-

Einstellbereich:

Zulassiger

Ton-

abnehmer-

Gewichtbereich:

Tonarmkopf-Gewicht:

Phonokabl-Kapazitanz:

@

Tonabnehmer

Typ:

Frequenzgang:

Ausgangsspannung:

Kanaltrennung:

Kanalabweichung:

Nachgiebigkeit

(dynamisch):

Auflagekraft:

Impedanz:

Gewicht:

Ersatznadel:

5

g

(cartridge

only)

EPS-25CS

Equivalent

replacement

stylus

EPS-25ES

(Elliptical

stylus).

}

Universal-Tonarm

S-férmiger

Rohrtonarm

Statisch

ausbalanciert

230mm

15mm

2°32’

bei

der

Einlaufrille

einer

30

cm-Platte

0°32’

bei

der

Auslaufrille

einer

30

cm-Piatte

Weniger

als

7

mg

(horizontal,

vertikal)

11

g

(ohne

Tonabnehmer)

0—2,5g

(Siehe.

Seite

14)

7,59

135

pF

Magnetischer

Tonabnehmer

10

Hz

bis

35

kHz

20

Hz

bis

10

kHz+1

dB

15

mV

bei

1

kHz

5

cm/s.

Null-zu-Spitze,

lateral

[7mV

bei

1

kHz

10

cm/s.

Null-

zu-Spitze,

45°

(DIN

45

500)]

22

dB

bei

1

kHz

Innerhalb

1,8

dB

bei

1

kHz

10x

10°€

cm/dyn

bei

100

Hz

1,75+0,25

g

(17,5+2,5

mN)

47

kQ

bis

100

kQ

5

g

(nur

Tonabnehmer)

EPS-25CS

(Gleichwertige

Ersatznadel

EPS-25ES.)

Francais

CARACTERISTIQUES

@

Géneéralités

Alimentation:

Alternatif

110-120/220-240V,

50

ou

60

Hz

Consommation:

7W

Dimensions:

43x10,6x37,5cm

(LxHxP)

Hauteur

maximum

lorsque

le

dessus

(couvercle

protége-

poussiére)

est

ouvert.

43x37x42

cm

Poids:

6,5kg

@

Platine

de

lecture

Type:

Entrainement

direct

a

quartz

Piatine

automatique

Démarrage

automatique

Retour

automatique

Arrét

automatique

Audition

répétée

Audition

4

commande

manuelle

Systeme

d’entraine-

ment:

Entrainement

direct

Moteur:

Moteur

C.C.

sans

balai

Groupe

de réglage:

Réglage

d’accrochage

de

phase

par

quartz

En

aluminium

moulé

sous

pression

Diamétre

31,2

cm

Vitesses

de

rotation:

33-1/3

et

45t/p.m

Pleurage

et

scintille-

ment:

0,012%

de

valeur

efficace*

0.025%

de

valeur

efficace

(JIS

C5521)

+0,035%

de

créte

(IEC

98A

Pondéré)

Plateau

de

lecture:

“Ce

régime

nominal

se

rapporte

a

|’ensemble

du

tourne-

disque

seul,

exciuant

les

effets

du

disque,

de

la

cellule

pick-up

ou

du

bras

de

lecture,

mais

comprenant

le

plateau,

Mesuré

par

I’obtention

d'un

signal

provenant

du

généra-

teur

de

fréquences

incorporé

de

|’ensemble

du

moteur.

—

56

dB

(IEC

98A

Non

pondéré)

—78

dB

(IEC

98A

Pondéré)

Ronflement:

Espafiol

ESPECIFICACIONES

Les

spécifications

sont

susceptibles

d’étre

modifiées

sans

préavis.

Le

poids

et

les

dimensions

donnés

sont

approximatifs.

@

Bras

de

lecture

Type:

:

Bras

de

lecture

universel

Bras

tubulaire

en

forme

de

‘‘S”’

De

type

a

équilibrage

statique

Longueur

effective:

230

mm

Porte-a-faux:

15mm

Angle

d’erreur

de

piste:

En

deca

de

2°

32’

au

sillon

extérieur

d'un

disque

de 30

cm

En

dega

de

0°

32’

au

sillon

intérieur

d’un

disque

de 30

cm

Moins

de

7

mg

(latéral

et

vertical)

11

g

(sans

la

cellule

pick-up)

Frottement:

Masse

réelle:

Plage

de

réglage

de

la

pression

d’appui:

Gamme

du

poids

des

cellules

pick-up

utilisables:

Poids

de

la

coque

porte-cellule:

7,59

Capacitance

propre

du

cable

pick-up:

135

pF

0-2.5g

(Voir

page

14.)

@

Cellule

pick-up

Type:

Aimant

mobile

Réponse

en

fréquence:

10

Hz

a

35

kHz

20

Hz

a10kHz+1dB

2,5mV

a1kHz;

5cm/s.,

zéroa

vitesse

latérale

de

créte

(7mV

a1

kHz

10

cm/s.,

zéro

a

vitesse

45°

de

créte

[DIN

45

500])

22

dB

a

1kHz

Tension

de

sortie:

Séparation

de

canal:

Equilibrage

des

canaux:

En

deca

de

1,8

dB

a1

kHz

Elasticité

(dynamique):

10

x

10-6

cm/dyne

a

100

Hz

Pression

de

la

pointe

de

lecture:

1,75+0,25g

(17,5+2,5

mN)

Impedance

de

charge:

47k‘)

to

100

ki)

Poids:

5g

(cellule

seule)

Pointe

de

lecture

de

remplacement:

EPS-25CS

(

Pointe

de

lecture

de

oo)

équivalente:

EPS-25ES

Las

especificaciones

quedan

sujetas

a

cambios

sin

aviso

previo.

EI

peso

y

las

dimensiones

indicados

son

aproximados.

@

En

general

Alimentacion

de

corriente:

~110-120/220-240

V,

50 6 60

Hz

Consumo

de

corriente:

7

W

43x10,6x37,5cm

43x37x42cm

Altura

maxima

cuando

la

parte

de

arriba

(tapa

contra

el

polvo)

esta

abierta.

6,5

kg

Dimensiones:

(Anchox

Alto

x

Prof.)

@

Seccion

del

plato

giratorio

Tipo:

Accionamiento

directo

por

cuarzo

Plato

giratorio

automatico

Arranque

automatico

Retorno

automatico

Parada

automatica

Ejecucién

repetida

Ejecuci6én

manual

Método

de

acciona-

miento:

Accionamiento

directo

Motor:

Motor

de

corriente

continua

sin

escobillas

Método

de

control

de

accionamiento:

Control

enclavado

de

fase

de

cuarzo

Platillo

del

plato

giratorio:

Aluminio

fundido

Diametro

31,2

cm

Velocidades

del

plato

giratorio:

33-1/3

y

45

rpm

Ululaciones

y

trémolo:

0,012%

WRMS”*

0,025%

WRMS

(JIS

C5521)

+0,035%

cresta

(IEC

98A

Ponderado)

“Estas

caracteristicas

se

refieren

unicamente

al

conjunto

del

plato

giratorio,

con

exclusi6n

de

los

efectos

provenientes

del

disco,

cartucho

o

del

brazo

sonoro,

incluyendo,

empero,

el

platillo.

La

medida

fue

tomada

por

medio

de

la

sefal

obtenida

del

generador

de

frecuencia

incorporado

del

conjunto

del

motor.

Ruido

de

rodadura:

~56

dB

(IEC

98A

No

ponderado)

—

78

dB

(IEC

98A

Ponderado)

®

Seccidn

del

brazo

sonoro

Tipo:

Brazo

sonoro

universal

Brazo

tubular

en

forma

de

‘‘S"

Tipo

equilibrado

estatico

Longitud

efectiva:

230

mm

Proyeccion:

15mm

Angulo

de

error

de

seguimiento:

Inferior

a

2°32’

en

el

surco

exterior

de

un

disco

de 30

cm

Inferior

a0°32’

en

el

surco

interior

de

un

disco

de

30

cm

@

CONTENTS

Page

LOCATION

OF

CONTROLS.........-..000

cee

eeese

5

TECHNICAL

EXPLANATION...........-.202005

6,7

DISASSEMBLY

INSTRUCTIONS

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

8~10

REPLACEMENT

OF

HALL

ELEMENT...............-

10

MEASUREMENTS

AND

ADJUSTMENTS

(English)........

11

MESSUNGEN

UND

JUSTIERUNGEN

(Deutsch)

.........

12

MESURAGES

ET

REGLAGES

(Frangais)............

12,

13

MEDICIONES

Y

AJUSTES

(Espafiol).............-

13,14

CARTRIDGE

INSTALLATION

............-.00000s

14

ABOUT

CARTRIDGE

WEIGHT

............000000%

14

Friccion:

Menos

de

7

mg

(en

sentido

lateral

y

vertical)

Masa

efectiva:

11g

(sin

cartucho)

Radio

de

ajuste

de

la

presion

de

laaguja:

0a2,5qg

Radio

de

peso

de

cartucho

utilizable:

(Véase

en

la

pagina

14)

Peso

de

la

capsula

de

la

cabeza:

7,59

Capacitancia

de

cable

de

fono:

135

pF

Seccion

del

cartucho

Tipo:

Iman

movil

Respuesta

de

frecuencia:

de

10

Hz

a

35

kHz

de

20

Hza10kHz+1dB

2,5mVa1kHz

Con

velocidad

lateral

de

cero

a

cresta

de

5cm/s

[7

mV

a

1

kHz

Velocidad

de

45°

de

cero

acresta

de

10

cm/s

(DIN

45

500)}

Separacion

de

canales:

22

dB

a

1

kHz

Equilibrio

de

canales:

Sin

exceder

1,8dBa

1

kHz

Elasticidad

(dinamica):

10x

10°76

cm/dina

a

100

Hz

Presion

de

la

aguja:

1,75

+0,25

9

(17,5

+2,5mN)

Impedanciadecarga:

47k{)a

100k!)

Peso:

5

9(cartucho

sélo)

Aguja

de

recambio:

EPS-25CS

ae

de

recambio

spene!)

Voltaje

de

salida:

EPS-25ES.

Page

CIRCUIT

BOARD

AND

WIRING

CONNECTION

DIAGRAM

............000c008

15,

16

SCHEMATIC

DIAGRAM

...........0000

ee

eae

17~19

BLOCK

DIAGRAM.

............0

00.

ccc

eeeeeee

20

TROUBLE

SHOOTING

GUIDE

.............000%

21

~23

REPLACEMENT

PARTS

LIST

Electrical

Parts.

2...

ce

ee

23,

24

Cabinet,

Chassis

and

Packing

Parts...

.---.-++.-

25,

27,29

EXPLODED

VIEWS

..........

0.2.0

ce

cua

eveene

25

~29

PACKINGS

a:

556)

5

fa

cecfepes

dio

epee.

eta

Sasa

ilar

Sete

ue

Bh

edd

30

m

LOCATION

OF

CONTROLS

Counterweight

Hinge

~

gh

Headshell

stand

Weight

ring

Anti-skating

control

Turntable

base

Turntable

mat

Arm

rest

Record

size

sensor

Arm

clamp

Center

spindle

Tonearm

Turntable

platter

Locking

sleeve

Headshell/

cartridge

Strobe-illuminator/

pilot

lamp

Start/stop

switch

Power

switch

(off

@

,

on

=

)

Speed

selectors

Cueing

control

Repeat

switch

(off

M,

on

=)

Automatic

mechanism

plate-

Main

base

Arm

base

Hall

element

(H1,

H2)

Tonearm

Drive

circuit

P.C.B

Controt

IC

(1C201)

Drive

1C

(1C101)

-Power

switch

(S402)

Repeat

switch

Speed

selector

P.C.B.

Cueing

lever

Strobe

LED

P.C.B.

Cueing

rod

Repeat

rod

Cueing

rink

Power

transformer

(T1)

Ey

Power

source

circuit

P.C.B.

m@

TECHNICAL

EXPLANATION

e

Principles

of

Auto

Size

Detection

This

unit

employs

a

mechanical

detection

system

instead

of

a

conventional

electrical

detection

system.

The

mechanical

system

makes

it

possible

to

detect

the

presence

of

a

record

and

the

size

(30cm/17cm)

of

the

record.

However,

it

is

unable

to

detect

a

25cm

record.

It

is

detected

as

a

17cm

record.

In

that

case,

manual

operation

is

required.

Note:

Playing

special

records

Follow

‘‘Manual

play”

for

playing

the

following

types

of

records.

(Special

records

may

interfere

with

correct

auto-

matic

operation.)

This

is

not

a

malfunction

of

the

turntable.

*

Non-standard

size

records

(standars

size

(EIA,

IEC,

DIN,

JIS.)

are

17,25

and

30

cm).

(However,

25

cm

(10’’)

records

can

not

be

selected

automatically

by

sensor.)

*Sono-sheets,

on

light

record

and

thin

records.

*

Badly

warped

records.

e

Mechanism

operation

for

auto

size

detection

The

mechanism

and

the

part

names

necessary

for

auto

size

detection

are

shown

in

Fig.

A.

30cm

record

detection

pin

Size

detection

base

Turntable

17cm

record

detection

pin

Drive

cam

Detection

pin

\

Record

size

Reset

lever

detection

plate

PU

fixing

plate

Index

sub-plate

Drop

position

setting

pin

@

index

plate

Fig.

A

Drop

position

setting

pin

@

Turntable

rotating

'

direction

/

Detection

of

a

record

1.

When

the

start

button

is

pressed

without

putting

a

record

on

the

turntable,

the

drive

cam

rotates

in

the

direction

of

arrow

@

to

turn

the

index

sub-plate

in

the

direction

of

arrow

@).

At

that

time,

the

index

plate

moves

in

the

same

manner

as

the

index

sub-plate.

(See

Fig.

A)

2.

The

record

size

detection

plate

interlocked

with

the

index

sub-plate

rotates

in

the

direction

of

arrow

oe.

(See

Fig.

A)

3.

Then,

the

reset

lever

of

the

size

detection

base,

attached

to

the

turntable,

is

pushed

by

the

record

size

detection

plate

and

moves

in

the

direction

of

arrow®.

(See

Fig.

B)

4.

When

the

reset

lever

is

pushed,

the

record

detection

pins

are

projected

on

both

inside

and

outside.

In

this

case,

as

both

detection

pins

are

up,

they

do

not

touch

the

index

plate

even

when

the

turntable

rotates.

(See

Fig.

B,

C-a)

5.

The

index

plate

does

not

move

when

no

record

is

on

the

turntable

(dotted

line

in

Fig.

D).

Then,

the

turntable

rotates

3

times

for

detecting

3

times.

(The

same

holds

true

for

record

size

detection.)

6.

When

the

index

plate

position

has

been

determined,

the

PU

fixing

plate

tends

to

move

the

arm,

but

the

arm

does

not

move

because

the

short

drop

position

setting

pin@

of

the

PU

fixing

plate

touches

the

no-record

detecting

part

of

the

index

plate.

(See

Fig.

D)

Detection

of

30cm

record

1.

The

operation

is

the

same

as

for

record

detection,

but

as

a

record

is

on

the

turntable,

both

inside

and

outside

detection

pins

are

down.

(See

Fig.

C-b)

2.

As

the

detection

pins

are

down,

only

the

inside

detec-

tion

pin

is

down.

(See

Fig.

C-b)

3.

The

detection

pin

touches

the

index

plate

and

pushes

it

in

the

direction

of

arrow

e.

Then,

the

index

plate

Position

is

as

shown

by

the

solid

line

in

Fig.

D.

4.

When

the

index

plate

position

has

been

determined,

the

PU

fixing

plate

moves

the

arm

inward,

but

the

30cm

record

detecting

part

of

the

index

plate

touches

the

drop

Position

setting

pin

@

of

the

PU

fixing

plate,

causing

the

arm

to

drop

at

the

position.

(See

Fig.

D)

Be

i

we

30cm

record

e

oF

>|

a.

No

record

30cm

record

detection

pin

Turntable

sheet

17cm

record

detection

Pin

LLL

Turntable

Reset

lever

Detection

pin

b.

30cm

record

detection

Record

SSSSSSSSSSSSSS

SSSA

SAE

SS pa

and

FSD

1,

NY

(

TS

ES

Fig.

C

Detection

of

17cm

record

1.

In

the

case

of

17cm

record,

the

outside

detection

pin

is

up

and

the

inside

pin

is

down.

Therefore,

both

detec-

tion

pins

are

down.

(See

Fig.

C-c)

2.

The

detection

pin

touches

the

index

plate

to

push

it

in

the

direction

of

arrow

@.

In

this

case,

the

index

plate

position

is

as

shown

by

the

broken

line

in

Fig.

D.

(As

both

detection

pins

are

down,

the

index

plate

is

pushed

much

more

than

in

30cm.)

3.

When

the

index

plate

has

been

determined,

the

PU

fixing

plate

moves

the

arm

inward,

but

the

17cm

record detec-

ting

part

of

index

plate

touches

the

drop

position

setting

pin

@

of

the

PU

fixing

plate,

causing

the

arm

to

drop

at

the

position.

(See

Fig.

D)

PU

fixing

plate

Pin@

30cm

record

17cm

record

Index

plate

Fig.D

DISASSEMBLY

INSTRUCTIONS

®

How

to

remove

the

main

base

and

cabinet

1.

2.

3.

4,

5.

11,

Fix

the

tonearm

on

the

rest.

Remove

the

headshell

and

counter

weight.

Remove

the

turntable.

Remove

the

panel

cover

setscrews

@

~

©

and

earth

lead

setscrew@.

(See

Fig.

1)

Remove

the

connectors

@

and

@

of

the

drive

circuit

P.C.B..

(See

Fig.

1)

.

Close

the

dust

cover,

and

turn

over

the

unit,

taking

care

not

to

scratch

it.

.

Remove

the

insulator

setscrews

@

~

@

and

phono

cord

clamper

setscrew

@.

(See

Fig.

2)

Turn

the

unit

up,

holding

the

main

base

and

cabinet.

Remove

the

dust

cover.

Remove

the

tonearm

from

the

rest,

shift

the

tonearm

inward,

and

lift

the

cabinet.

Then,

the

main

base

and

cabinet

can

be

disassembled.

(See

Fig.

3)

When

assembling

the

main

base

and

cabinet,

make

sure

that

the

cueing

lever

of

the

arm

base

is

engaged

with

the

cueing

ring

of

the

cabinet.

(See

Fig.

4)

Panel

cover

Cabinet

oF

aise

Se

%

Drive

circuit

P.C.B.

Fig.

1

*

The

insulator

spring

(black)

at

this

position

is

different

from

other

three

springs.

o

ah

beg

e-

Insulato

=

1

°

spring

Main

base

Fig.

2

Cueing

rink

Cueing

lever

Fig.

4