Technics Sl-1600mk2 User manual

i

Technics

Turntable

System

L-1600MK2

L-1610MK2

Operating

instructions

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Before

operating

this

set,

please

read

these

instructions

completely.

We

want

to

thank

you

for

selecting

the

SL-1600MK2/

SL-1610MK2.

For

optimum

performance,

we

recommend

that

you

read

these

instructions

carefully.

Before

use

Caution:

Never

connect

the

AC

power

plug

before

assembly

has

been

completed.

Attach

the

dust

cover

last,

so

that

assembly

and

adjustments

can

be

made

most

conveniently.

Note:

The

operating

instructions

are

commonly

applicable

to

units

with

cartridge

and

without

cartridge,

and

also

to

those

of

different

colors.

For

the

units

without

cartridge,

the

cartridge

section

of

the

spec-

ifications

may

be

neglected.

M@

Checklist

of

parts

LOrata

DIG

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caine

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Oats

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EAR

edie

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See

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snus

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tenes

sw

eee

hs

eas

1

MCACSHEl

nic.

acd

deocueeennens

dome

een

aginst

oe

oo

1

SHC

WIG

E

ikadastindeeacans

diver

es fob

hebeee

1

Overhang

gauge

(for

the

unit

without

cartridge)

.........

1

@

Remove

the

transport

screws

(See

Fig.

2.)

Remove

the

four

blue

fixing

screws

and

felt

washers.

The

screws

and

washers

are

necessary

whenever

you

trans-

port

the

unit,

so

store

them

in

a

safe

place.

Assembly

and

set-up

@

Installation

of

turntable

platter

1.

Place

the

turntable

platter

on

the

center

spindle.

Note:

The

rotor

is

connected

to

the

underside

of

the

turntable

platter.

(The

magnet

of

the

motor

is

attached

to

the

turn-

table

platter.)

To

maintain

optimum

performance,

extra

Care

should

be

taken

to

prevent

adhesion

of

dust

or

iron

filings

to

the

magnet

and

not

to

damage

the

magnet

by

dropping

it.

|

Do

not

remove

or

loosen

the

screws.

Should

the

position

of

the

fixed

magnet

be

altered

by

loosening

the

securing

screws,

the

rated

performance

of

the

unit

cannot

be

guar-

anteed.

(See

Fig.

3.)

2.

Place

the

turntable

mat

on

the

platter.

Match

the

protrusion

on

the

turntable

platter

(prism)

with

the

dent

on

the

turntable

mat

and

engage

them

onto

the

Spindle.

(See

Fig.

4.)

@

Installation

of

cartridge

(for

the

unit

without

cartridge)

(See

Fig.

5.)

When

you

install

a

cartridge,

refer

to

the

operation

instruc-

tions

of

that

cartridge.

During

installation,

attach

the

stylus

protector

to

guard

the

Stylus

tip

from

damage.

1.

Connect

the

lead

wires

to

the

cartridge

terminals.

The

terminals

of

most

cartridges

are

color

coded.

Connect

each

lead

wire

to

the

terminal

of

the

same

color.

White

(L+)............

Left

channel+

Bivie

C=

)hctcans

woe

nde

Left

channel—

Red

(Rt)

civereeued

4

Right

channel+

Green

(R-)..........

Right

channel—

2.

Install

a

cartridge

to

the

headshell,

and

tighten

it

with

screws

provided

with

the

cartridge.

Note:

Use

the

shell

weight

only

for

a

light

weight

cartridge.

(Less

than

6.0

g.).

(See

Fig.

6.)

@

Adjustment

of

overhang

(for

the

unit

with

overhang

gauge)

(See

Fig.

7-1)

1.

Insert

the

headshell

into

the

gauge.

2.

Loosen

the

mounting

screws

and

move

the

cartridge

for-

ward

or

backward

until

the

stylus

tip

lines

up

with

the

edge

of

the

gauge.

3.

Tighten

the

mounting

screws

without

moving

the

car-

tridge.

Note:

Your

cartridge

is

now

adjusted

for

lowest

tracking

error

and

minimum

distortion.

This

gauge

is

exclusively

designed

for

this

tonearm.

(for

the

unit

without

overhang

gauge)

(See

Fig.

7-2.)

The

overhang

of

this

unit

is

15

mm.

Loosen

the

mounting

screws

and

move

the

cartridge

forward

or

backward

until

the

distance

between

the

stylus

tip

and

the

plug

becomes

52

mm

(2-3/64")

as

shown

in

the

picture.

Tighten

the

mounting

screws

without

moving

the

cartridge.

Adjust

horizontal

zero

balance,

stylus

pressure

and

arm-lift

height

whenever

you

change

the

cartridge.

—

Installation

of

headshell

(See

Fig.

8.)

Insert

the

headshell

into

the

front

end

of

the

tubular

arm,

and

turn

the

locking

nut

clockwise

(in

the

direction

shown

by

the

arrow

“A”),

with

the

headshell

firmly

held

horizontally.

@

Installation

of

balance

weight

(See

Fig.

9.)

Place

the

balance

weight

on

the

rear

shaft

of

the

tonearm.

Note:

In

case

the

cartridge

weight

exceeds

10g,

it

is

necessary

to

fix

the

attached

auxiliary

weight

over

the

rear

shaft

of

the

arm.

(See

Fig.

10.)

With

this

auxiliary

weight

in

use,

it

is

possible

to

use

any

cartridge

whose

weight

is

in

the

range

of

9.5—13

g.

m™

Adjustments

of

horizontal

zero

(0)

balance

and

stylus

pressure

1.

Remove

the

stylus

protector,

if

your

cartridge

has

a

detach-

able

one.

Be

careful

not

to

touch

your

fingers

to

the

stylus

tip.

2.

Release

the

arm

clamp

and

lift

the

tonearm

from

the

arm

rest

to

free

It.

3.

Turn

the

entire

balance

weight

clockwise

(indicated

by

the

arrow

“A”)

or

counterclockwise

(indicated

by

the

arrow

“B”)

until

the

tonearm

is

approximately

balanced

horizon-

tally

(floats

freely).

(See

Figs.

11

and

12.)

Note:

(A)

Excessive

forward

advancement

of

the

balance

weight

causes

the

cartridge

side

to

be

lowered.

(B)

Excessive

backward

retreatment

of

the

balance

weight

causes

the

cartridge

side

to

be

raised.

(C)

Upon

balancing

between

the

balance

weight

and

Cartridge.

the

tonearm

is

held

horizontal.

During

the

adjustment

of

the

horizontal

zero

(0p

balance,

be

careful

that

the

stylus

tip

of

the

cartridge

does

not

contact

the

turntable

mat

or

turntable

base.

‘Assembly

and

ar

ar ir

Oe

a

er

a

pitch

%

2

ati,

|

8—13

mm

(5/16"—33/64")

Arm

-

ft

|

Sed

adj

Jus

simen:

a

Notes

and

maintenance

start

Stop

cueing

Ps

pressu

re

i

ing

“QO”

aay

ee

Stylus

PE

minator

switch

|

Parts

identification

@

Photo

sensor

®

Arm-height

adjustment

ring

@®

Balance

weight

@

Turntable

base

@®

Stylus

pressure

ring

@

Arm

lock

knob

@

Anti-skating

control

knob

@®

Arm

rest

®

Cueing

lever

@

Arm

clamp

©

Center

spindle

@

Tonearm

©

Turntable

platter

@

Turntable

mat

@

Strobe

dots

@®

Locking

nut

©

Strobe-illuminator/

@

Headshell

pilot

lamp

ee

:

Pale

Te

phy

oh

op

eee

gO

ee

@

Start/stop

button

Aaa.)

asa

ecient

Say:

cel

Co

tie

ae in

eae

i

I

)off(

)

@

Cueing

button

©

Speed

select

buttons

@

Power

switch

on(

©

Repeat

button

@®

Pitch

indicator

@

Pitch

control

knob

Shell

weight

|e

\

=a

Transport

screws

52

mm

(2-3/64")

Headshell

Lead

wire

Terminal

Stylus

tip

52

mm

(2-3/64")

4.

After

the

tonearm

is

horizontally

zero

(0)

balanced,

tem-

porarily

refasten

the

tonearm

with

the

arm

clamp.

5.

Hold

the

balance

weight

stationary

with

one

hand

as

shown

in

the

picture,

and

rotate

only

the

stylus-pressure

ring

to

bring

the

numeral

“0”

of

the

ring

into

alignment

with

the

center

line

on

the

tonearm

rear

shaft.

(See

Fig.

13.)

The

adjustment

of

the

horizontal

zero

(0)

balance

is

now

completed.

6.

After

adjusting

the

horizontal

zero

(0)

balance,

turn

the

balance

weight

in

the

direction

of

the

arrow

and

align

to

the

correct

stylus

pressure.

(See

Fig.

14.)

(Follow

the

cartridge

manufacturer's

recommendation.)

As

the

stylus-pressure

ring

moves

in

step

with

the

balance

weight,

proper

stylus

pressure

can

be

selected

by

directly

reading

the

graduated

ring.

@

Adjustment

of

anti-skating

control

Set

the

anti-skating

control

knob

to

the

same

value

as

the

stylus

pressure.

(See

Fig.

15.)

™

Adjustment

of

tonearm

height

(See

Fig.

16.)

The

height

of

the

tonearm

can

be

adjusted

up

to

6mm,

anda

scale

is

provided

on

the

adjust

ring

in

0.5

mm

increments.

Be

sure

to

set

the

proper

arm

height

using

the

adjust

ring

scale

and

referring

to

the

table.

Before

adjusting

the

tonearm

height,

unlock

the

tonearm

lock

by

turning

the

arm

lock

knob.

(See

Fig.

16.)

adjust

ring

(H)

i

eC

ee

eee

ee

ee,

For

example,

if

the

cartridge

height

is

17.5

mm,

the

arm-height

adjust

ring

should

be

positioned

at

the

intermediate

location

between

2

and

3

on

the

scale.

(See

Fig.

16.)

Caution:

.

Be

sure

to

lock

the

tonearm

by

turning

the

arm

lock

knob

in

the

direction

indicated

by

the

arrow

after

finishing

the

height

adjustment

for

the

tonearm.

(Refer

to

Fig.

16.)

Scale

reading

on

the

arm-height

Installation

of

dust

cover

(See

Fig.

17.)

Place

the

dust

cover

into

position

from

directly

above,

holding

it

at

both

sides.

For

detaching

the

dust

cover,

be

certain

first

to

raise

it

as

illustrated

before

removal.

Note:

Opening

or

closing

of

the

dust

cover

during

play

should

be

avoided.

This

may

not

only

cause

undesired

vibrations,

but

also

result

in

skipping

of

the

stylus.

If

you

must

open

the

dust

cover

during

play,

do

so

as

gently

as

possible.

Placement

M

Place

the

unit

in

a

stable

and

horizontal

position,

where

there

is

little

or

no

vibration.

The

unit

has

the

superior

feature

of

double-isolator

const-

ruction.

For

obtaining

the

maximum

effect

of

this

feature,

place

the

unit

in

a

stable,

level

place.

In

addition,

be

careful

not

to

put

anything

under

the

turntable

base.

Make

certain

that

the

surface

on

which

the

turntable

rests

is

large

enough

to

accommodate

the

legs

fully.

®@

Locate

the

unit

as

far

away

from

the

speakers

as

possible

and

isolate

the

unit

from

sound

radiation

from

them.

HM

Do

not

install

the

unit

where

there

is

strong

light,

such

as

direct

sunlight

or

spotlights,

in

order

to

prevent

malfunction

of

the

photo

sensor.

HM

Don’t allow

flashlights

or

other

infrared

remote

control

devices

near

the

photo

sensor

section

(within

50

cm)

to

avoid

inter-

ference

with

proper

automatic

operation

of

the

unit.

H™

Do

not

place

the

unit

where

it

is

exposed

to

dust,

moisture

or

heat.

M@

Keep

it

in

a

well

ventilated

place.

HM

When

a

radio

is

placed

too

close

to

the

turntable

and

is

played

while

the

turntable

is

in

operation,

interference

to

AM/FM

reception

may

result.

Connections

™

Connect

the

AC

power

plug

Connect

the

AC

power

plug

to

an

AC

wall

socket.

Caution:

Make

sure

that

the

turntable’s

AC

line-voltage

selector

is

matched

to

your

local

voltage

before

connecting

the

AC

power

plug.

Never

connect

to

a

DC

socket.

lf

the

pre-selected

voltage

is

different

from

your

local

voltage,

turn

the

AC

line-voltage

selector

with

a

screw-

driver

so

that

it

corresponds

to

your

local

voltage.

The

AC

line-voltage

selector

is

located

under

theturntable

platter.

(See

Fig.

18.)

™

Connect

the

output

terminals

(See

Fig.

18.)

Output

terminals

Amplifier

or

Receiver

L

(White)

———————_—>

[MJ

Channel

R

(Red)

—————_—————>

EBL

Channel

GND

(Spade

!ug)

———»

[e]{}»}

Note:

Be

sure

to

connect

the

ground

terminal

firmly

to

the

am-

plifier

or

receiver.

If

this

connection

is

not

made

or

is

loose,

a

power

source

“HUM?”

will

result.

How

to

operate

@

Automatic

play

1.

Place

a

record

on

the

turntable

mat.

2.

Push

the

power

switch

to

the

“on”

position

(im).

(See

Fig.

19.)

The

LED's

(Light

Emitting

Diodes)

at

the

speed

select

button

33

(33-1/3

rpm),

the

strobe-illuminata,

and

the

pitch

indicator

should

then

be

illuminated.

Note:

Since

the

unit

has

been

designed

to

select

3-1/3

rpm

automatically

each

time

you

push

the

power

syit

ch

to

the

“on”

position

(m=),

push

the

45

rom

speed

selet

button

if

you

wish

to

play

a

45-rpm

record.

(See

Fig.

21)

3.

Remove

the

stylus

protector,

if

your

Cartridge

was

a

de-

tachable

one

and

release

the

arm

clamp.

4.

Push

the

start/stop

button.

(See

Fig.

21.)

The

turntable

platter

will

start

to

rotate.

As

there

<ord

size

is

automatically

detected

by

a

photo

sensor,

te

tonearm

will

move

automatically

over

the

lead-in

growe

and

de-

scend

slowly

onto

the

record

to

start

playing

he

record.

5.

When

play

is

over,

the

tonearm

will

automatically

return

to

the

arm

rest

(auto-return)

and

the

turntable

will

stop

rotating.

*

When

play

is

finished,

push

the

power

switch

to

the

“off”

position

(mm).

Now,

secure

the

tonearm

with

the

arm

clamp

and

attach

the

stylus

protector

to

the

stylus.

Note:

!

e

The

turntable

will

stop

rotating

after

a

few

turns

f

you

happen

to

push

the

start/stop

button

without

placing

a

record

on

the

turntable

mat.

This

has

been

so

designed

to

protect

the

stylus

tip

and

is

not

a

malfunctioning

of

the

unit.

e

The

tonearm

will

not

begin

the

auto-start

function

if

pres-

sure

is

applied

to

the

turntable

(for

example,

with

the

record

cleaner)

after

depression

of

the

start/stop

button.

When

the

record

cleaner

is

removed

from

the

record,

then

the

tonearm

will

move

over

the

record

and

play

will

Start.

e

If

you

happen

to

push

the

start/stop

button

by

mistake,

depression

of

the

start/stop

button

again

before

the

tone-

arm

begins

to

move

will

stop

the

auto-start

function.

e

As

automatic

play

is

not

applicable

to

transparent

rec-

ords,

Sono-sheets,

and

non-standard-size

records

(other

than

17,

25,

30

cm).

play

those

records

manually.

HM

Cueing

operation

Both

the

cueing

button

(located

on

the

front

control

panel)

and

the

cueing

lever

(located

on

the

arm

base)

are

used

for

cueing

control.

Depression

of

the

cueing

button

interlinks

the

cueing

lever

with

the

up

and

down

movement

of

the

tonearm.

The

cueing

lever,

however,

can

be

independently

operated

manually.

They

should

be

used

depending

on

the

operating

conditions.

Note:

e

The

(¥)

indication

at

the

cueing

button

means

that

the

stylus

tip

is

raised

from

the

disc

surface,

and

(¥)

means

that

the

tonearm

is

lowered

so

that

the

tip

of

the

stylus

is

resting

on

the

disc

surface.

e

Depression

of

the

cueing

button

during

the

up

(¥)

or

down

(¥)

movement

of

the

tonearm

will

not

cause

the

tonearm

to

be

lowered

or

raised.

The

cueing

button

should

be

depressed

again

once

the

tonearm

has

completed

its

up

motion

(or

down

motion).

e

When

you

operate

the

cueing

button,

be

sure

to

release

the

arm

clamp.

If

you

operate

the

cueing

button

to

raise

the

tonearm

with-

Outreleasing

the

armclamp,

the

tonearm

will

ascend:

how-

ever,

in

rare

cases,

the

tonearm

will

not

descend

even

when

_

the

cueing

button

is

again

pushed.

In

this

case,

release

the

arm

clamp

and

push

the

cueing

button,

which

will

cause

the

tonearm

to

descend.

a

‘Manual

play

Push

the

power

switch

to

the

*

‘on”

position

(m),

set

the

“peed

select

button

to

the

desired

position

and

remove

the

Stylus

protector.

2.

Release

the

arm

clamp.

3.

Push

the

cueing

button

(

_

lever

manually.

4.

Move

the

tonearm

over

the

record.

The

turntable

will

start

to

rotate.

S.

Push

the

cueing

button

(y),

or

lower

the

cueing

lever

manually.

The

stylus

will

then

descend

onto

the

record

groove

and

play

will

start.

(Refer

to

Fig.

22.)

6.

When

play

is

finished,

the

tonearm

will

return

to

the

arm

rest

automatically

(auto-return)

and

the

turntable

will

stop

.

rotating.

Vv

)

(See

Fig.

22),

or

lift

the

cueing

M

Repeated

play

1.

Push

the

repeat

button.

(See

Fig.

23.)

The

LED

on

the

repeat

button

will

light

up.

2.

Push

the

start/stop

button.

3.

As

soon

as

play

has

finished

the

tonearm

will

ascend

auto-

matically

and

return

to

the

lead-in

groove

to

repeat

play.

Note:

Depress

the

repeat

button

once

more

if

the

repeat

play

is

to

be

discontinued.

Depression

of

the

start/stop

button

during

the

repeat

play

will

automatically

release

the

repeat

assignment,

and

the

tonearm

will

automatically

return

to

the

arm

rest.

@

How

to

stop

play

Push

the

start/stop

button.

The

tonearm

automatically

returns

to

the

arm

rest,

and

the

turntable

stops

rotating.

Note:

The

auto-return

will

not

function

if

the

start/stop

button

is

depressed

while

the

stylus

tip

is

raised

from

the

record

surface

by

depressing

the

cueing

button

(or

by

manually

raising

the

cueing

lever).

How

to

suspend

play

Push

the

cueing

button

(¥),

or

lift

the

cueing

lever

by

hand.

The

stylus

will

ascend

from

the

record.

When

you

play

a

45-rpm

record

with

a

large

center

hole

Place

the

45-rpm

adaptor

on

the

center

spindle.

Push

the

45

speed

select

button.

Stylus

illuminator

(See

Fig.

24.)

This

unit

is

provided

with

a

stylus

illuminator

for

illuminating

the

stylus

tip

during

play.

By

pressing

the

stylus

illuminator

switch,

the

stylus

illumina-

tor

is

raised

into

position

for

illuminating

the

stylustip.

When

not

in

use,

keep

the

stylus

illuminator

lowered

through

de-

pression.

Note:

The

switch

must

be

firmly

engaged.

Incomplete

depression

of

the

switch

will

not

raise

the

illu-

minator

even

though

the

lamp

is

lit.

Pitch

control

(fine

adjustment

of

speed)

(See

Figs.

25

and

26.)

As

soon

as

power

is

applied

to

the

unit

by

depressing

the

power

switch

(m),

the

LED

lamp

lights

up

indicating

that

the

unit

is

on.

When

the

pitch

control

knob

is

clicked

in

at

the

position

“0”,

the

regular

speed

(33-1/3

or

45

rpm)

is

held,

indicating

the

condition

with

the

green

LED

lamp.

However,

the

pitch

control

feature

of

this

unit

allows

speed

variation

in

a

range

of

0O~4

6%.

Proper

speed

variation

can

be

selected

while

watching

the

red

LED

lamp

and

the

s

ale

read-

ing

on

the

indicator.

Please

note

that

the

scale

reading

on

the

indicator

shows

only

an

approximate

percentage.

If

LED

lamps

light

up

at

two

locations

(e.g.

at

positions

[2]

and

[3]),

it

shows

that

the

pitch

variation

is

in

a

range

if

2

~

3%.

When

the

strobe

dots

in

4

stages

marked

at

the

;eripheral

edge

of

the

turntable

appear

to

be

stationary,

variation

of

individual

pitches

is

shown.

(See

Fig.

26.)

When

(1)

appears

stationary,

it

shows

a

+6%

pitchvariation.

When

(2)

appears

stationary,

it

shows

a+

3.3%

pitchyariation.

When

(3)

appears

stationary,

itshows

normal

turnta)

Je

speed,

33-1/3

or

45

rpm.

When

(4)

appears

stationary,

it

shows

a

—3.3%

pitchvyariation.

Note:

The

strobe-illumination

of

this

unit

employs

a

si

obe-illu-

minator

LED

synchronized

with

the

precise

qsartz

fre-

quency.

For

fine

adjustment

of

the

turntable

speed,

be

sue

the

adjustment

according

to

the

LED

illuminati

The

LED

illumination

is

not

synchronized

with

fly

oOrescent

lamps.

to

effect

M@

Adjustment

of

muting

timing

(height

of

arm

lift)

(See

Figs.

27

and

28.)

This

unit

is

fitted

with

a

muting

feature

which

is

used

to

cut

off

irritating

noise

caused

at

the

moment

the

stylus

is

brought

down

on

or

lifted

up

from

the

disc

surface.

Muting

timing

can

be

adjusted

by

the

height

of

the

arm

lift,

a

clearance

between

the

stylus

tip

and

the

disc

surface

while

the

top

of

the

tonearm

is

at

the

“up”

position

(¥),

by

depressing

the

cueing

switch

button.

The

height

of

the

arm

lift

was

adjust-

ed

to

arange

of

8~13

mm

before

shipment

from

the

factory.

(See

Fig.

27.)

Perform

the

adjustment

in

the

following

manner

when

adjustment

is

needed

for

the

cartridge

being

used.

e

To

begin

with,

protect

the

tip

of

the

stylus

with

the

stylus

cover.

e

Turn

off

the

power

switch

()

so

that

the

turntable

should

not

move.

e

The

top

of

the

adjust

screw

is

hexagonal.

While

holding

the

arm

lift

down,

turn

the

adjust

screw.

Remember

to

depress

the

arm

lift

downwards

in

turning

the

adjust

screw.

(See

Fig.

28.)

If

recorded

sound

cannot

be

reproduced

at

once

after

the

stylus

was

lowered

on

to

the

disc

surface,

try

to

adjust

the

timing

by

turning

the

adjust

screw

counter-

clockwise,

and

thus

increasing

the

distance

between

the

sty-

lus

tip

and

the

disc

surface.

In

case

irritating

noise

is

generated

when

the

stylus

is

lowered

on

to

the

disc

surface,

decrease

the

distance

by

turning

the

adjust

screw

clockwise.

Note:

As

the

adjusting

screw

has

a

hexagonal

head,

be

sure

to

make

the

adjustment

while

depressing

the

arm

lift,

or

the

screw

will

not

move

freely.

Also

be

sure

that

the

hexagonal

head

retracts

correctly

into

the

arm

lift

when

the

latter

is

released.

Adjustment

for

automatic

start

position

(See

Fig.

29.)

Auto-start

position

(where

the

stylus

tip

lowers

onto

the

re-

cord

surface

during

automatic

play

mode)

should

be

adjusted

with

arecord

on

the

turntable

platter.

If

the

tip

of

the

stylus

does

not

land

at

a

proper

location

on

the

record,

it

should

be

adjusted

in

the

following

manner.

Be

sure

to

use

a

30

cm

disc

for

adjusting

the

auto-start

position.

1.

Clamp

the

tonearm

to

the

arm

rest.

2.

Take

the

rubber

cap

off

the

auto-start

position

adjust-

ment

screw.

Then,

turn

the

adjustment

screw

clockwise

or

counterclockwise

with

a

screwdriver.

3.

If

the

stylus

tip

descends

onto

the

sound

grooves,

the

adjustment

screw

must

be

turned

clockwise.

4.

If

the

stylus

tip

descends

outside

the

record,

the

adjust-

ment

screw

must

be

turned

counterclockwise.

5.

The

auto-start

position

must

be

adjusted

so

that

the

tip

of

the

stylus

descends

1

to

2

mm

from

the

lead-in

groove.

Cross-sectional

view

of

record

Sound

groove

Groove

guard

Notes

and

maintenance

HM

Do

not

grasp

or

hold

the

tonearm

during

operation

of

the

automatic

mechanism.

Use

utmost

care

when

handling

the

platter

and

when

placing

it

on

the

motor

shaft

to

prevent

possible

damage

to

the

magnet.

Do

not

turn

“on”

the

power

supply,

with

the

turntable

platter

detached.

When

using

other

headshells,

make

sure

that

the

headshell

configuration

is

compatible.

(See

Fig.

30.)

When

other

types

of

headshells

are

employed,

the

handle

portion

of

the

headshell

may

strike

against

the

inner

upper

surface

of

the

dust

cover

during

automatic

motion

of

the

tone-

arm.

In

such

acase,

we

recommend

that

the

dust

cover

be

left

open

during

play.

Before

detaching

or

attaching

the

headshell,

be

sure

to

turn

the

power

of

the

amplifier

or

receiver

off.

Detaching

or

attaching

of

the

headshell

with

the

volume

con-

trol

turned

up

may

cause

damage

to

the

speakers.

Wipe

the

dust

cover

and

turntable

base

with

a

soft,

dry

cloth.

Never

use

any

cleaners

containing

alcohol,

benzine

or

thinner.

Use

of

a

chemical

dust

cloth

should

also

be

avoided.

Be

sure

that

the

dust

cover

is

not

exposed

to

insecticide

spray.

To

remove

stubborn

finger

prints

or

grease

spots,

detach

the

dust

cover

and

disconnect

the

AC

power

plug.

Use

a

soft

cloth

slightly

moistened

with

a

mild

soap

and

water

solution.

Do

not

wipe

the

dust

cover

during

play,

or

the

tonearm

may

be

attracted

toward

the

dust

cover

due

to

the

generation

of

static

electricity.

Dust

and

dirt

should

be

carefully

removed

from

stylus

tip

or

records.

Dust

and

dirt

on

the

stylus

tip

or

record

may

not

only

result

in

deterioration

of

tone

quality,

but

also

cause

undue

wear

ofthe

record

and

the

stylus

tip

itself.

Special

stylus

tip

brushes

and

record

cleaners

can

be

pur-

chased

in

most

electronic

supply

houses.

Wipe

the

headshell

terminals

from

time

to

time.

Dust

and

dirt

at

the

headshell

terminals

may

result

inincreased

“HUM”

noise

or

intermittent

sound.

Use

a

soft

dry

cloth

to

clean

the

headshell

terminals.

Also

wipe

the

prism

(protrusion

on

the

turntable

platier)

witha

soft,

dry

cloth.

Lubrication

(See

Fig. 31.)

Apply

2

or

3

drops

of

oil

once

after

every

2000

hours

of

opera-

tion.

The

time

interval

is

much

longer

than

that

for

conventional

type

motors

(200—500

hours).

Please

purchase

original

oil.

(Part

number

is

SFWVO

010.)

Do

not

use

a

stabilizer

since

it

may

lessen

the

effects

of

the

double

floating

structure

employed

in

this

unit.

Replacement

of

stylus

(See

Fig.

32.)

(for

set

with

cartridge)

The

unit

is

furnished

with

a

diamond

stylus.

The

life

of

the

stylus

differs

depending

on

the

conditions

of

use,

but

it

is

recommended

that

you

replace

the

styuss

atthe

first

sign

of

wear.

About

500

hours

of

use

is

an

appr

Oximate

standard.

The

replacement

stylus

for

the

unit

is

the

EPS-207E

D.

1.

Remove

the

headshell/cartridge

from

the

tubular

arm.

Hold

the

stylus

assembly

with

your

fingers

andwithdraw

it

slantwise,

as

shown

in

the

picture.

2.

Align

the

new

stylus

assembly

with

the

square

opening

of

the

cartridge

main

body,

and

push

it

into

the

Opening

positively

as

far

as

it

will

go.

Transportation

of

the

unit

to

distant

places

for

remoOva

fandthe

like.

Pack

up

the

unit

in

the

reverse

order

to

that

for

un

packing,

using

the

packing

materials

furnished

when

the

uni

$vas

pur-

chased.

Should

there

be

no

such

packing

materials,p

€

Sure

to

take

the

following

steps.

e

Remove

the

turntable

platter

together

with

the

turntable

mat,

and

wrap

it

up

to

prevent

any

damage

to

them.

e

Return

the

tonearm

to

the

arm

rest,

and

affix

if

with

tape

or

the

like.

.

e

Remove

the

balance

weight

and

the

headshell/cartridge

from

the

tonearm

and

then

wrap

them

up

to

avoid

any

damage

to

them.

e

Wrap

up

the

turntable

base

with

a

blanket

or

soft

paper

also

to

prevent

any

possible

damage

to

it.

Total

Quartz

Locked

Continuous

Pitch

Adjust-

ment

+6%

Quartz-phase-locked

control

provides

rotational

accuracy

that

is

not

approached

by

other

turntable

servo

systems.

With

the

large

majority

of

quartz-controlled

turntables,

how-

ever,

the

quartz

servo

system

must

be

defeated

when

speed

changes

are

required

(such

as

for

matching

musical

pitch

to

an

instrument).

Technics

was

the

first

company

to

develop

a

“quartz

synthesizer”

system

which

maintained

quartz

accu-

racy

in

pitch-altered

modes.

This

system

permitted

quartz-

controlled

speed

changes

in

increments

of

0.1%.

Now,

with

the

SL-1600MK2/SL-1610MK2,

pitch

is

variable

continuously

(analogically)

by

up

to

+6%,

under

quartz

con-

trol.

Pitch

changes

are

made

by

turning

a

knob

on

the

front

panel.

As

this

is

done,

a

series

of

thirteen

LED’s

light

to

indi-

cate

percentage

of

pitch

change—plus

and

minus

1,

2,

3,

4,

5,

and

6%,

and

exactly

on

speed.

In

any

case,

the

unsurpassed

accuracy

of

the

quartz

system

remains

in

effect.

Double

Isolated

Suspension

System

with

TNRC

Inner

Base

Acoustic

feedback

is

a

potential

problem

whenever

the

turn-

table

is

located

in

the

same

room

as

the

speakers,

as

is

the

case

innearly

all

home

systems.

Technics

developed

a

double

isolated

suspension

system

to

drastically

reduce

the

potential

for

feedback.

The

outer

base

is

made

from

diecast

aluminum

and

is

supported

by

a

carefully

tuned

set

of

isolators.

The

inner

base

which

supports

the

all-important

platter,

motor

and

tonearm

base,

is

made

from

our

heavy,

anti-resonant

“TNRC”

material

(Technics

Non-Resonance

Compound).

This

inner

base

is

supported

by

a

second

set

of

isolators.

Alto-

gether,

this

double

suspension

makes

it

very

unlikely

that

you'll

ever

encounter

a

feedback

problem.

Even

the

platter

is

doubledamped,

with

a

specially

fabricated

rubber

mat

placed

on

the

underside

of

the

turntable

as

well

as

the

top.

Fully-Automatic

Tonearm

Action

with

Micro-

Computer

Control

and

Muting

Circuit

A

micro-computer

governs

and

controls

all

tonearm

functions—auto-start,

auto-stop,

auto-return,

auto-repeat

and

double

cueing

control.

You'll

discover

that

the

auto-

matic

operation

of

the

tonearm

is

so

quiet

that

you'll

almost

have

to

look

at

it

to

know

it’s

moving.

Technics

uses

mechan-

ically

quiet,

precision-molded,

rugged

synthetic

parts

to

avoid

deterioration.

The

result

is

smooth

virtually

noise-free

operation.

An

automatic

muting

circuit

cuts

off

output

from

the

cartridge

whenever

the

arm

is

picked

up

or

set

down

either

by

the

automatic

mechanism

or

the

cueing

control.

This

avoids

irritating

shock

noises.

Automatic

Disc

Size

Sensing

and

Repeat-

Play

Control

with

Infrared

Sensor

With

the

SL-1600MK2/SL-1610MK2,

disc

size

selection

(i.e.

12”,

10”,

7”)

is

made

automatically.

An

invisible

infrared

ray

is

generated

from

the

underside

of

the

platter.

Through

three

Small

openings

in

the

platter,

it

reaches

a

sensor

installed

in

a

pole

near

the

tonearm

base.

The

record

on

the

turntable

mat

blocks

a

portion

of

the

in-

frared,

and

from

this

the

size

of

the

record

is

determined.

The

micro-computer

mentioned

above

handles

the

information

and

causes

the

tonearm

to

descend

at

the

appropriate

point.

If

there

is

no

record

on

the

platter

when

the

“start”

switch

is

pushed,

the

tonearm

will

not

move,

so

accidental

operation

is

impossible.

In

addition,

the

repeat

action

of

the

tonearm

is

improved

over

our

past

designs.

If

you

operate

the

turntable

in

a

repeat-play

mode,

the

tonearm

will

return

to

the

lead-in

grooves

and

descend

rather

than

going

back

to

the

tonearm

rest

as

in

past

models.

All

Front-Panel

Controls

Operational

convenience

is

enhanced

by

putting

all

controls,

even

the

cueing

control

and

LED

display,

in-line

on

the

front

panel.

The

control

buttons

are

precision-designed

to

require

a

moderate

but

definite

amount

of

pressure

for

activation.

This

design

gives

a

sense

of

positive

control

and

minimizes

the

possiblility

of

its

accidental

activation.

High-Sensitivity,

Low

Mass

Gimbal

Suspension

Tonearm

The

highly

sensitive

tonearm

suspension

features

a

genuine

“gimbal”

design,

the

rotational

center

of

which

is

precisely

defined

at

a

single

point.

Bearings

are

finished

to

atolerance

of

10.5

microns.

This

and

the

close-proximity

of

the

bearings

to

the

pivot

center,

result

in

an

effective

friction

of

7

mg

(0.007

grams)

for

both

horizontal

and

vertical

movement.

Add

to

this

the

low,

12-gram

effective

mass

of

the

tonearm

(includ-

ing

the

headshell)

and

you

have

a

tonearm

compatible

with

the

wide

range

of

compliances

found

in

today’s

cartridges.

Quartz

Oscillator-Controlled

Strobe

Illuminator

with

Four

Indication

Lines

A

quartz

controlled

LED

strobe

illuminates

four

lines

of

Stroboscope

markings

on

the

platter

edge.

These

markings

correspond

to

percentages

of

speed

change:

+6%,

+3,3%,

0%

(standard

speed)

an

-3%.

When

the

line

of

markings

seem

to

stand

still,

this

means

that

the

platter

is

rotating

at

precisely

the

indicated

speed.

Stylus

Illuminator

for

Low-Light

Conditions

Other

Fine

Features

High

torque

for

fast

starts

Excellent

load

characteristics

for

steady

speed

Helicoid

tonearm

height

adjustment

Electronic

braking

system

brings

platter

to

a

quick

stop.

Prism

strobe

illuminator,

governed

by

quartz

oscillator

rather

than

potentially

unstable

AC

line

frequency.

e

Soft-touch

switches

provide

positive

Control

while

mini-

mizing

chances

of

accidental

operation.

e

Technics

integral

rotor/platter

structure

with

full-cycle

detection

FG.

Specifications

General

Power

supply:

Power

consumption:

Dimensions:

(WxXHxD)

Weight:

~110-120/220-240V,

50

or

60

Hz

18.5

W

45.3

x

14.9x

39.9

cm

(17-27/32”"

*

5-7/8"

X

15-45/64")

10

kg

(22

Ib.)

Turntable

section

Type:

Quartz

direct

drive

Automatic

turntable

Auto

start

Auto

return

Auto

stop

Repeat

play

Direct

drive

Brushless

DC

motor

Aluminum

die-cast

Diameter

33.2

cm

(13-5/64"’)

Weight

2

kg

(4.4

Ib.)

33-1/3

rom

and

45

rpm

Drive

method:

Motor:

Turntable

platter:

Turntable

speeds:

Pitch

control:

+6%

range

Por

Starting

torque:

1.5

kg-cm

(1.3

Ib-in)

Build-up

characteristics:

0.7s.

from

standstill

to

33-1/3

rom

Braking

system:

Electronic

brake

Speed

change

due

to

load

torque:

Wow

and

flutter:

0%

within

1.0

kg-cm

(0.87

Ib-in)

0.01%

WRMS*

0.025%

WRMS

(JIS

C5521)

+0.035%

peak

(IEC

98A

Weighted)

“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

gen-

erator

of

motor

assembly.

Rumble:

—56

dB

(IEC

98A

Unweighted)

—78

dB

(IEC

98A

Weighted)

Tonearm

section

Type:

Universal

Effective

length:

230

mm

(9-1/16")

Arm

height

adjustment

O—6

mm

range:

:

Overhang:

15

mm

(19/32")

12

g

(without

cartridge)

Within

2°32’

at

the

outer

groove

of

30

cm

(12")

record

Within

0°

32’

at

the

inner

groove

of

30

cm

(12”)

record

Effective

mass:

Tracking

error

angle:

Offset

angle:

22°

Friction:

Less

than

7

mg

(lateral,

vertical)

Stylus

pressure

adjustment

range:

0—2.5g

Applicable

cartridge

weight

range:

6—10g

13.5—17.5

g

(including

headshell)

(with

auxiliary

weight):

95—13

9g

17—20.5

g

(including

headshell)

(with

shell

weight):

06,09

11—14

g

(including

headshell)

Headshell

weight:

reome

|

Cartridge

section

(for

set

with

cartridge)

Model

No.

EPC-207C

Type:

Moving

magnet

20

Hz

to

25

kHz

20

Hz

to

15

kHz

+2

dB

3

mV

at

1

kHz

5

cm/s.

zero

to

peak

lateral

velocity

[8.5

mV

at

1

kHz,

10

cm/s.

zero

to

peak

45°

velocity

(DIN

45500)]

25

dB

at

1

kHz

Within

2

dB

at

1

kHz

10

x

10°

cm/dyne

at

100

Hz

1.75

+0.25

g

(17.5

2.5

mN)

47

kQ

to

100

kQ

5.6

g

(cartridge

only)

EPS-207ED

(Elliptical

stylus)

Frequency

response:

Output

voltage:

Channel

separation:

Channel

balance:

Compliance

(dynamic):

Stylus

pressure:

Load

impedance:

Weight:

Replacement

stylus:

Specifications

subject

to

change

without

notice.

Weight

and

dimensions

shown

are

approximate.

For

longer

and

safer

use

of

this

unit

In

order

to

receive

the

best

service

from

this

unit,

and

for

the

safest

operation,

carefully

read

the

following

information.

Power

source

It

is

very

dangerous

to

use

this

unit

at

a

voltage

which

is

different

from

the

rated

voltage.

;

-

.

There

is

danger

of

combustion

if

the

unit

is

connected

to

a

power

source

which

is

different

from

the

rated

voltage.

Be

very

careful

concerning

this

point.

Direct

current

cannot

be

used.

There

are

some

places,

such

as

ships,

where

direct

current

is

used

as

the

power

source.

Before

connecting

the

unit,

confirm

the

power

source.

Connection

of

power

cord

Be

sure

to

never

touch

the

power

cord

with

wet

hands

because

there

is

danger

of

electric

shock.

This

is

true,

of

course,

of

all

electric

equipment.

Do

not

pull

the

power

cord.

Never

pull

the

power

cord

to

disconnect

it.

Always

pull

the

plug

only.

Location

of

unit

Choose

a

place

which

is

not

in

direct

sunlight.

Select

a

place

which

will

assure

good

ventilation.

Never

place

heating

equipment

nearby.

Be

sure

to

keep

stoves

and

other

sources

of

heat

away

from

this

unit,

because

heat

radiated

by

such

equipment

may

cause

deformation

of

plastic

parts

or

damage

the

cabinet.

or,

at

worst,

cause

a

fire.

Especially

for

families

with

children

Take

care

that

no

small

items,

such

as

metal

objects,

are

put

inside

this

unit.

In

addition,

children

should

be

especially

warned

not

to

put

anything

into

the

ventilation

holes,

such

as

toys

or

a@

screw-

driver,

because

these

things

may

cause

an

electric

shock

or

result

in

a

malfunction

of

the

unit.

If

water

spills

on

the

unit

If

water

should

happen

to

spill

on

the

unit.

from

an

overturned

vase

for

example,

there

is

danger

of

fire

or

electric

shock.

Disconnect

the

power

plug

from

the

electric

outlet

imme-

diately,

and

contact

the

store

from

which

the

unit

was

pur-

chased.

Reconstruction

can

cause

accidents

Absolutely

never

try

to

remodel,

reconstruct

or

repair

this.

unit

yourself.

Do

not

attempt

to

touch

any

internalparts

be-

cause

to

do

so

may

result

in

an

electric

shock

oro

ther

ac-

cident.

Be

sure

the

power

is

off.

After

you

have

finished

using

this

unit,

check

once

more

to

be

sure

that

the

power

is

off.

If

the

unit

is

left

with

he

power

on

for

a

long

period

of

time,

it

may

not

only

be

damaged,

thus

shortening

its

useful

life,

but

may

also

lead

toa

danger-

Ous

accident.

Technics SL-1600MK2 User manual

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