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RD

40

Instruction

Manual

ARISTON

AUDIO

1.

INTRODUCTION.

2.

GENERAL

ASSEMBLY

AND

OPERATING

INSTRUCTIONS.

3.

FITTING

THE

TONE

ARM,

4,

SPECIAL

INSTRUCTIONS

—

MOTOR

CLUTCH

ASSEMBLY.

5.

HINTS

ON

TUNING.

fen)

SPECIAL

INSTRUCTIONS

—

ILLUSTRATIONS,

7.

WIRING

DIAGRAMS.

ARISTON

ACOUSTICS

LIMITED

RD

40

INSTRUCTIONS

Thank

you

for

your

purchase

of

the

Ariston

RD4Q

Turntable.

The

RD40

system

is

a

new

generation

of

turntable

designed

to

represent

the

tinest

value

tor

money

together

with

the

best

performance,

we

at

Ariston

can

produce.

Based

on

our

research

and

experience

over

long

years

the

RD4O

resolves

many

of

the

delicate

problems

associated

with

Super

Quality

Audiophile

turntables,

and

finally

brings

the

listening

pleasure

associated

with

these

turntables

within

the

reach

of

most

discerning

purchasers,

The

RD40

is

a

system,

and

may

be

tailored

to

suit

the

needs

of

the

individual.

its

specification

may

include

the

following

accessories:

—

Isolating

Base,

Cover,

D.C,

Module.

Heavy

Piatter.

Adjustable

Feet.

Heavy

Springs.

Ariston

Tone

Arm.

Mass

Rings,

SaaS

ee

Consult

your

dealer

for

details

since

most

of

these

parts

may

be

retro

fitted.

INTRODUCTION

1.

IMPORTANT

INSTRUCTIONS

1.1.

It

is

critical

that

the

main

bearing

housing

does

not

become

contaminated

by

dust

of

any

other

foreign

matter.

1.2

Do

not

attempt

to

dismantle

the

motor

assembly

as

this

unit

is

tuned

during

production

to

provide

optimum

performance,

1.3

Your

Ariston

turntable

can

be

supplied

for

service

an

220

-

240

valts

50

hz

or

110

volts

GO

hz

A.C.

mains

supply.

Before

connecting

to

the

mains

supply,

check

both

the

supply

voltage

and

other

information

on

the

rating

plate

on

the

rear

of

theunit.

Motors

coded

white

200

-

240

volts

50hz

A.C,

Motors

coded

red

100

-

120

volts

60

hz

A.C.

These

markings

are

placed

on

the

top

of

the

motor.

If

required

at

any

timne,

a

mains

supply

conversion

kit

may

be

obtained

from

Ariston

Acoustics

Ltd.,

through

your

local

Ariston

agent.

2.2

2.3

24

2.5

2.6

27

2.8

29

2.10

2.11

GENERAL

ASSEMBLY

AND

OPERATING

INSTRUCTIONS

If

no

tone

arm

or

cartridge

is

supplied,

refer

to

section

3

in

conjunction

with

the

fitting

instructions

supplied

with

the

tone

arm

and

cartridge

of

your

choice,

Place

the

turntable

on

a

flat

surface

and

remove

packing

pieces

as

necessary.

Place

the

entire

contents

of

the

Oil

Vial

supplied

into

the

bearing

housing.

Should

the

housing

require

subsequent

topping

up,

use

a

light

machine

oil.

Fit

the

platter

complete

with

drive

belt

allowing

the

shaft

to

descend

gently

into

the

bearing

housing.

DO

NOT

USE

FORCE.

With

your

index

finger

through

one

of

the

access

holes

in

the

platter,

hold

the

drive

bell

in

position

ready

to

pass

around

the

motor

pulley.

See

fig.

1.

The

small

pulley

for

33%

RPM,

the

large

pulley

for

45

RPM.

(The

last

sentence

is

not

applicable

on

the

D/C

version

with

electronic

speed

control).

The

platter

and

tone

arm

board

may

require

levelling.

This

is

achieved

by

rotating

the

spring

adjusters

on

the

top

of

the

three

spring

satellites,

anti-

ciockwise

to

raise,

clockwise

to

lower.

To

carry

out

this

operation,

the

platter,

mal

and

tone

arm

are

fitted

in

position.

The

chassis

and

platter

should

bounce

in

a

free

manner.

Should

the

tap

of

the

satellite

touch

the

spring

adjuster

stem,

rotate

the

top

of

the

satellites

whilst

holding

the

spring

adjusters

until

the

assembly

is

quite

free.

Adjust

the

suspension

wilh

the

bell

fitted,

Whilst

adjusting

the

three

springs,

bounce

the

platter

yently

in

the

area

of

the

appropriate

spring

to

ensure

the

suspension

is

entirely

tree.

If

a

spirit

level

is

employed

please

take

into

account

that

the

platter

is

concave

and

therefore

a

correct

reading

may

not

be

obtained.

It

is

normally

sufficient

having

ensured

the

turntabie

is

on

a

level

surface

to

set

the

suspension

by

sighting

the

bottom

of

the

chassis

to

the

base

of

the

turntable.

{If

a

heavy

tone

arm

is

fitted,

the

centre

of

gravity

of

the

assembly

can

be

corrected

by

fitting

mass

rings

which

are

available

through

your

Ariston

agent.

Should

the

turntable

have

a

tendency

to

shed

its

belt,

check

the

motor

is

correctly

seated

in

its

housing,

and

the

pulley

is

parallel

to

the

platter.

Do

not

carry

out

this

operation

whilst

the

turntable

is

connected

ta

the

mains

electricity

supply.

It

is

recommended

that

for

the

purpose

of

bedding

the

bearing

that

the

turntable

be

run

in

for

a

period

of

a

few

hours.

When

the

tone

arm

and

cartridge

are

fitted

and

properly adjusted

the

unit

can

be

cannected

for

operation.

Ensure

the

tone

arm

is

earthed

through

the

amplifier,

and

if

undue

hum

is

detected,

disconnect

the

mains

earth

to

the

turntable

should

your

supply

specify

same,

Ensuring

the

turntable

speed

is

compatable

with

the

record,

the

deck

may

be

switched

on,

3.

3.1

3.2

3.3

3.4

3.5

3.6

4.1

42

4.3

44

4.5

FITTING

THE

TONE

ARM

Please

refer

to

the

relevant

manufacturers

instructions

in

all

cases.

The

tone

arm

board

is

removed

for

cutting

and/or

fitting

the

arm

by

with-

drawing

the

retaining

screws

using

the

socket

wrench

supplied

in

the

accessory

pack,

Tone

arm

cables

should

be

fed

through

the

access

hole

to

the

inside

of

the

turntable

base,

where

they

may

be

securely

held

with

the

tle

supplied.

The

tie

should

be

as

tight

as

possible,

and

the

tone

arm

cable

between

the

tie

and

the

tone

arm

should

be

sufficiently

complient

to

move

with

the

turntable

suspension,

generally

for

that

purpose

it

will

be

found

thata

coupleof

inches

of

cable

should

be

allowed

extra

over

the

distance

trom

tone

arm

to

cable

tie.

A

tone

arm

earth

point

is

provided

on

the

sub

chassis.

When

the

tone

arm

is

correctly

fitted,

refer

to

section

2

for

levelling

the

turntable.

When

fitting

a

cartridge

always

adhere

to

the

instructions

provided

by

the

manufacturer,

To

assist

with

fitting

the

cartridge

to

the

Carrier

on

the

tone

arm,

an

alignment

protractor

is

supplied.

Place

the

protractor

over

the

turntable

spindle

and

insert

the

cartridge

stylus

at

the

arrow

point.

The

cartridge

may

then

be

tightened

up

in

that

position.

Dust

on

the

stylus

tip

may

cause

a

deterioration

in

sound

quality,

the

diamond

should

be

cleaned

with

a

soft

brush.

Average

age

of

an

elliptical

stylus

is

somewhere

trom

400

to

600

hours.

It

is

advisable

for

optimum

performance

to

replace

it

periodically.

SPECIAL

INSTRUCTIONS

Motor

Clutch

Assembly.

The

clutch

should

be

lubricated

once

every

three

months

by

placing

a

small

drop

of

light

machine

oil

between

the

pulley

top

and

the

clutch

spring

retaining

washer

Fig,

2

(standard

motor

Not

DC).

The

motor

employed

on

the

standard

motor

ts

a

24

pote

AC

synchronous

type

and

by

its

nature

wil!

generate

a

vibration

or

imperceptible

noise,

neither

wil!

affect

listening

pleasure

since

the

motor

is

totally

isolated.

To

maintain

optimum

performance,

regularly

clean

the

bearing

housing

with

a

cotton

wool

bud

and

top

up with

light

machine

oil,

as

necessary.

The

periphery

of

the

drive

pulley

and

the

belt

should

be

kept

free

from

any

traces

of

oil

or

grease.

Should

they

become

contaminated,

clean

them

with

a

lint

free

cloth

dampened

with

lighter

fuel

or

methylated

or

similar

type

spirit.

The

mat

may

be

cleaned

with

warm

soapy

water.

-

—

5.

HINTS

ON

TUNING

Acoustic

Feedback.

Acoustic

Feedback

occurs

when

the

isolation

of

the

pick

up

from

the

loudspeakers

is

inadequate.

Vibrations

from

the

latter

are

received

by

the

pick

up,

turned

into

an

electrical

signal

and

returned

via

the

amplifiers

to

the

loudspeakers,

The

process

is

rapidly

repeated

and

unless

the

equipment

is

switched

off

or

the

volume

control

retarded

the

resulting

signal

level

may

cause

overload

damage

to

the

amplifiers

and

loudspeakers.

If

feedback

is

suspected,

carry

out

a

simple

check

as

follows:

a)

Switch

off

the

turntable

and

place

the

stylus

on

a

stationary

record,

slowly

advance

the

volume

control

up

to

and

a

little

beyond

the

normal

maximum

listening

level.

b)

Hf

and

when

feedback

occurs

it

will

be

heard

as

a

howl

of

rapidly

rising

intensity,

so

be

ready

to

retard

the

volume

control

quickly.

c)

If

the

test

shows

that

feedback

occurs

within

or

close

to

normal

listen-

ing

levels,

attention

should

be

given

to

the

foregoing

points.

d}

Experiment

with

the

positioning

of

the

turntable

should

reveal

marked

differences

in

the

level

of

feedback.

Ensure

the

sub

chassis

is

not

short-

circuited

and

is

quite

free

to

move

both

vertically

and

horizontally.

e}

The

spring

suspension

should

be

adjusted

to

as

low

a

pitch

as

possible.

The

higher

the

platter

and

chassis

sits

on

the

turntable

the

greater

acoustic

feedback

likelyhood.

Mechanical

Noise

There

are

various

areas

which

may

contribute

to

mechanical

noise,

the

likeliest

of

these

are

the

bearings

which

may

require

oil,

the

suspension

which

may

be

short-

circuited

or

the

motor.

Check

the

electrics

and

all

connections,

ensure

the

wiring

is

correct

tor

the

electrical

current

and

frequency.

Wow

The

most

likely

source

of

wow

is

the

drive

belt,

which

may

have

become

contam-

inated

with

oil,

Remove

the

belt

and

clean

it

with

lighter

fuel,

subsequently

dusting

it

with

chalk.

Clean

the

belt

faces

on

both

the

pulley

and

the

hub

with

lighter

fuel.

Rumble

As

the

word

implies,

this

term

describes

the

intermittent

low

frequency

sounds

heard

through

the

loudspeakers

and

can

be

caused

by

foreign

matter

or

imperfect-

ions

in

the

moving

parts

of

theturntable,

The

importance

of

mechanical

excellence

in

these

areas

Cannot

be

overstated

since

the

pick

up

cannot

discriminate

between

the

information

on

the

record

and

unwanted

vibrations

within

the

turntable.

Always

ensure

the

bearing

is

topped

up

with

light

machine

oi].

Ensure

the

sub

chassis

is

decoupled,

6.

SPECIAL

INSTRUCTIONS

6.1

Remove

the

packing

piece

from

under

the

motor

pulley

and

fit

the

drive

belt

on

the

motor

pulley

and

drive

hub.

Small

pulley

for

33%

r.p.m.

Large

pulley

for

45

r.p.m.

6.2

With

your

index

finger

through

one

of

the

access

holes

in

the

platter

hald

the

drive

belt

in

position

ready

to

pass

around

the

pulley

(fig.

1).

6.3

Motor

Clutch

Assembly.

The

clutch

assembly

stiouid

be

lubricated

once

every

three

months

by

placing

a

small

drop

of

light

machine

oi!

between

the

pulley

top

and

the

clutch

spring

retaining

washer

(fig.

2).

SS

—!

Ore

CIRCLIP

“D"

WASHER,

—————

a=

_——————_

SPRING

>

WwASHER.

«

Se

FELT

WASHER

———————————

PULLEY

—

————_—_

MOTOR

EXTENSION

—

SPINOLE

Fig.

2.

|

woror

_————————

ell

7.

WIRING

DIAGRAM

—

RD

40

A.C.

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—

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SLIOA

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-

07e

7.

WIRING

DIAGRAM

—

RD

40

A.C.

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09

SLIOA

OFF

ARISTON

ACOUSTICS

LIMITED

Unit

176,

Brieryside,

Prestwick

Airport,

Prestwick,

Ayrshire

KA9

2RB,

Scotland

Ariston

Acoustics

Limited

reserve

the

right

to

change

the

specifications

without

notice.