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=

CEC

TURNTABLE

Serv

Ice

ae

|

CONTENTS

1.

TECHNICAL

SPECIFICATIONS.

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

1

2.

DISASSEMBLY

INSTRUCTIONS

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

2

3.

ADJUSTMENTS

3-1

TOOLS

REQUIRED

FOR

ADJUSTMENTS....

3

3-2

TURNTABLE

HEIGHT

ANDLEVEL

.......

3

3-3

STYLUS

POINT

HEIGHT

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

3

3-4

TURNTABLE

SHAFT

MOUNTING

POSITION:

icc

sts

Sein

wie

ae

eaters

Ba

eS

4

3-5

AUTO

RETURN

MECHANISM............

4

3-6

CUEING

LEVER

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

2:

eae

5

3-7

TURNTABLE

SPEED

................4..

5

3-8

VOLTAGE

CHANGEOVER

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

5

4.

TROUBLE

SHOOTING...........-........0-%

6

5.

PARTS

REPLACEMENT

...............0-22005

7

6.

EXPLODED

VIEW

6-1

MECHANISM

........-..

0.020

cee

eee

8

“6-2

CABINET...

6

6c

cee

ee

ee

et

ee

ee

eee

10

6-3

PACKING

.... 2...

cece

ec

eee

eee

eee

10

6-4

ACCESSORY

PARTS

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

10

6-5

SERVO

CONTROLLER

CIRCUIT

DIAGRAM.

.

10

6-6

WIRING

DIAGRAMS

............-+++0--

11

6-7

PRINTED

CIRCUIT

BOARDS.............

11

To

PARTS

LIST.

ccc

escent

ee

eee

Fe

eee

eles

Ae

6

12

8.

CIRCUIT

DIAGRAMS...............2-0

eee

ee

13

Destination

USA

(UL

Approval)

Canada

(CSA

Approval)

Europe

(Scandinavian

Approval)

General

territories

2-speed,

belt

drive,

auto-return

system

Aluminum

alloy

die-cast,

30.8

cm

Type

Platter

outer

diameter

featuring

stroboscopic

calibrated

rim

with

neon

lamp

Motor

FG

servo

DC

motor

Speed

2-speeds:

33-1/3

rpm,

45

rpm

Speed

calibration

Measured

at

3

kHz

signal

+3%

+2.5%

S/N

ratio

DIN

45539A

40

dB

36 dB

DIN

45539B

65

dB

60

dB

Wow

&

Flutter

Measured

at

3

kHz

signal

0.045%

WRMS

0.055%

WRMS

DIN

45507

0.07%

0.095%

Tone

arm

Headshell

Plug-in

type,

tubular

Overall

length

300

mm

Effective

length

215mm

Overhang

15mm

Adjustable

force

range

0

to

2.5g/I

turn

of

the

scale

ring

(directly

readable

in

0.5g

steps)

4to1i2g

MC-20

Moving

Magnet

type.

20

—

20,000

Hz

3.5

mV

at

1

kHz

50

mm/sec.

Acceptable

cartridge

weight

Cartridge

(Model

G)

Frequency

response

Output

voltage

2.5

—4.9

mV

at

TRS-1004

record

2

dB

at

1

kHz

20

dB

at

1

kHz

Channel

difference

Channel

separation

16

dB

at

1

kHz

at

TTR-102

record

Tracking

force

Stylus

tip

Power

source

2

grams

0.6

mil

diamond

stylus

117

Volts,

60

Hz

AC

117/220

Volts

switchable

50/60

Hz

117/220

Volts

switchable

50/60

Hz

Model

A

and

C

Model

E

Model

G

Power

consumption

Dimension

Weight

3

watts

139(H)

x

456(W)

x

335(D)

mm

7.5

kg

(Net)

@1

DISASSEMBLY

INSTRUCTIONS

1

TOOLS

REQUIRED

FOR

DISASSEMBLY

Phillips-head

screwdrivers

(for

M5,

M3

and

M2.6)

Slotted-head

screwdrivers

(medium

and

small

sizes)

Radio

pliers

Hexagon-head

wrench

(for

M3

and

M4)

Nippers

Soldering

iron

Hexagon

box

type

screwdrivers

(for

M5

and

M3)

DO

THE

FOLLOWING

PRIOR

TO

DISASSEMBLY:

(1)

Remove

the

dust

cover.

(2)

Remove

the

turntable

plater

and

prepare

the

unit

to

be

moved

by

locking

the

mechanism

in

place

with

the

three

red

screws.

(3)

Fix

the

tone

arm

in

place

with

the

lock

lever

of

the

arm

rest.

(4)

Place

the

set

on

a

suitable

bench

with

the

bottom

base

upward.

(Fig.

1)

REMOVE

THE

CABINET

(1)

Remove

with

a

Phillips-head

screwdriver

the

eight

screws

which

hold

the

bottom

base. (Fig.

2).

(2)

Remove

the

two

screws

which

hold

the

cord

mounting

plate

of

the

cabinet

(Fig.

3).

(3)

When

the

six

screws

which

hold

the

cabinet

are

removed,

the

cabinet

and

panel

board

can

be

lifted

off.

(Fig.

4).

REMOVE

THE

MOTOR

(1)

Remove

the

two

screws

D

which

fasten

the

servo

control

circuit

board

of

motor.

(2)

Cut

the

nearest

portion

to

the

servo

control

circuit

board

of

two

wires

from

printed

circuit

board

and

three

wires

from

rotaly

switch.

(3)

Cut

the

nearest

portion

to

the

lug

terminal

of

motor

grounding

wire.

(4)

Remove

from

the

surface

of

panel

board

the

three

screws

(M2.6)E

which

hold

the

motor.

Then

the

motor

can

be

removed.

(Fig.

5).

REMOVE

THE

SUB-CHASSIS

FROM

THE

UNIT.

(1)

Remove

the

arm

support.

(2)

Remove

the

three

red

screws.

(3)

Remove

the

shield

case.

(4)

Disconnect

from

the

lug

terminal

plate

the

five

leads

coming

from

the

tone

arm.

(5)

Turn

the

drive

gear

180°

so

that

the

return

plate

moves

over

the

nut

and

remove

the

arm

rest

fixing

nut.

And

pull

out

the

arm

rest.

(6)

Loosen

the

screw

of

the

tone

arm

fixing

plate

boss

and

remove

the

tone

arm

fixing

plate.

(7)

Remove

the

tone

arm

fixing

nut

and

remove

the

tone

arm.

(8)

Disconnect

the

release

wire

from

the

lifter

base

(Fig.

6).

(9)

Remove

the

reject

spring

spacer

(Fig.

7)

(10)

Remove

the

terminal

angle

B

from

the

panel

board.

(11)

Turn

the

set

over

and

remove

nuts

A,B

and

C

shown

in

Fig.

5.

(12)

Remove

the

suspension

spring

and

cushion

rubber.

(13)

Hold

the

turntable

shaft

and

lift,

and

remove

the

sub-chassis.

@2

t

D

(two

screws)

6.

REMOVE

THE

LIFTER

LEVER

A

AND

B

(Fig.

8)

(1)

Loosen

the

screw

A

of

the

lifter

lever

B,

remove

the

E

type

washer,

pull

out

the

lifter

lever

A,

remove

the

screws

B

and

C,

and

remove

the

lifter

lever

mounting

plate

B.

REMOVE

THE

VARIABLE

RESISTOR

AND

ROTALY

SWITCH

(1)

Remove

the

lifter

lever

A

and

B

as

described

in

the

above

step.

(2)

Pull

out

the

speed-change

lever

A

and

variable

resistor

knob.

(3)

Cut

the

wires

which

is

soldered

to

the

lug

terminal,

remove

the

screws

B

and

C,

and

remove

the

nuts

which

fasten

the

variable

resistor

and

rotaly

switch.

(Fig.

8)

ADJUSTMENTS

1,

TOOLS

REQUIRED

FOR

ADJUSTMENTS

Small

level

indicator

Hexagon

box

type

screwdrivers(M5

and

M4)

Phillips-head

screwdriver

(M3)

Slotted-head

screwdrivers

(M3

and

smaller

size)

Note:

Be

sure

to

set

the

bench

for

adjustment

level.

TURNTABLE

HEIGHT

AND

LEVEL

(1)

Place

the

set

with

the

bottom

base

removed

on

a

stable

table,

set

the

turntable,

the

platter

mat

and

a

record,

and

adjust

the

height

and

level

of

the

turntable

with

the

nutsA,

B

and

C

in

Fig.

5

to

the

dimensions

shown

in

Fig.

9.

Note:

Since

the

four

points

are

slightly

different

in

height

due

to

panel

board

distortion,

etc.,

be

sure

to

adjust

the

turntable

to

the

required

level.

(2)

After

height

adjustment,

put

a

level

indicator

on

the

turntable,

turn

the

nutsA,

Band

C,

and

adjust

the

level

of

the

turntable.

(Fig.

5).

Adjusted

turntable

height

should

be

within

a

range

of

21

+0.5~—1.5

mm.

STYLUS

POINT

HEIGHT

(1)

Auto

Up

Adjust

the

height

from

the

record

surface

to

the

stylus

point

in

the

following

order

so

that

it

conforms

to

the

dimensions

shown

in

Fig.

10

during

auto

return:

(a)

Turn

the

nut

Aof

the

return

plate

support

and

adjust

the

mounting

dimensions

of

the

return

plate.

For

the

fixed

type,

insert

a

plain

washer

(4.7

@

x

10

¢

x

0.5

t

—

0.3

t)

and

then

make

this

adjustment

(Fig.

11).

(b)

When

the

tone

arm

reaches

the

position

shown

in

Fig.

13

in

auto

return

operation,

stop

the

rotation

of

the

turntable

(turn

off

the

power)

and

measure

the

gap

between

the

stylus

point

and

record

surface.

(c)

If

the

gap

is

not

within

the

dimensions

specified

in

Fig.

10,

turn

the

nut

A

in

Fig.

11

and

make

another

adjustment.

@3

Less

than

5mm

More

than

Turn

counter-clockwi

i

oe

ur

0

wise

Note:

Do

not

give

more

than

two

turns.

Turn

clockwise

(d)

if

the

gap

between

the

record

surface

and

stylus

washer

point

does

not

yet

fall

within

the

dimension

specified

in

Fig.

10,

return

the

nut

A,

in

Fig.

11

into

the

original

position,

slightly

loosen

the

arm

support

attaching

screw,

fix

the

arm

support

about

0.5

—

1

mm

higher,

and

make

gap

adjustment

as

specified

in

Fig.

13.

—tone

arm

(2)

Manual

Up

Adjust

by

turning

the

screw

ain

Fig.14

so

that

the

gap

between

the

stylus

point

and

record

surface

becomes

equal

to

that

at

the

time

of

auto

up

when

the

cueing

lever

is

set

to

the

V

position.

tone

arm

support

TURNTABLE

SHAFT

MOUNTING

POSITION

(1)

Loosen

the

three

screws

which

hold

the

turntable

shaft.

.

(2)

Push

ratchets

A

and

BJ

attached

to

the

drive

gear

as

far

as

possible

in

the

direction

of

the

arrow

shown

in

Fig.

15.

(3)

Move

the

turntable

shaft

so

that

the

gap

between

the

turntable

gear

and

ratchet

A

becomes

as

shown

in

Fig.

15.

and

tighten

the

screws.

(4)

Turn

the

turntable

shaft

by

hand

to

make

sure

the

0.5~

turntable

gear

and

ratchet

A

do

not

touch

each

other.

If

they

come

in

contact,

move

the

turntable

shaft

slightly

forward.

Fig.

13

Keep

the

gap

between

the

turntable

and

ratchet

to

the

dimensions

shown

in

Fig.

15,

1mm

AUTO

RETURN

MECHANISM

(1)

Make

sure

the

tone

arm

fixing

plate

is

properly

in-

stalled

as

shown

in

Fig.

16.

(2)

Put

on

a

record

and

let

the

stylus

drop

slightly

outside

the

end

groove

or

65

—

70

R

from

the

center

of

the

turntable.

When

the

record

ends,

make

sure

the

tone

arm

automatically

returns

from

any

of

the

following

positions:

(a)

For

LP

records,

a

click

is

heard

when

the

stylus

is

between

53

and

57.5

R

and

then

the

tone

arm

automatically

returns.

(b)

For

EP

records,

a

click

is

heard

when

the

stylus

is

between

48.5

and

53

R

and

then

the

tone

arm

automatically

returns.

(c)

For

the

auto

return

test

record

(CEC

RG-652),

a

click

is

heard

when

the

stylus

is

between

55

and

61

R

and

then

the

tone

arm

automatically

returns.

(3)

If

the

tone

arm

does

not

automatically

return

from

all

of

the

above

positions,

turn

the

adjusting

screw

in

Fig.

16

to

adjust

the

tone

arm

return

position.

Clockwise

turning

of

the

screw

brings

the

return

posi-

tion

close

to

the

center

of

the

turntable

and

counter-

clockwise

turning

of

the

screw

moves

the

return

posi-

tion

away

from

the

center

of

the

turntable.

@4

6.

CUEING

LEVER

Adjusting

screw

for

auto-return

Adjust

the

cueing

lever

so

that

it

returns

to

the

original

position

before

auto

return

operation

ends.

(1)

Remove

the

bottom

base

from

the

set

and

put

the

set

on

a

stable

table.

(2)

Fully

loosen

the

screw

in

Fig.

17.

(3)

Adjust

the

screw

in

Fig.

17

so

that

the

cueing

lever

returns

at

the

same

time

as

the

tone

arm

when

the

speed

change

lever

is

set

to

33

rpm

and

auto

return

operation

is

effected.

Note:

Overtightening

the

screw

causes

the

tone

arm

to

return

suddenly

in

mid-record,

and

under-

tightening

the

screw

makes

the

cueing

lever

fail

to

return.

Adjust

so

that

the

tone

arm

works

smoothly

and

the

cueing

lever

returns

completely.

Adjusting

screw.

Retum

plate

returns

tone

arm.

Fixing

plate

returns

tone

arm.

Pull

release

and

return

cueing

level.

7.

TURNTABLE

SPEED

The

rotating

speeds

of

the

turntable

can

be

adjusted

to

minimum

+2.5%

with

the

variable

resistor

knob.

If

the

specified

adjusting

range

cannot

be

obtained,

adjust

as

follows:

(1)

Place

the

variable

resistor

knob

at

the

center

(150°)

of

rotating

possible

angle

(300°).

(2)

Remove

the

platter

and

put

the

speed

adjusting

lebel

off

from

the

panel

board.

(3)

Rotate

from

the

two

holes

beneath

the

speed

adjusting

label

the

semi-fixed

variable

resistors.

Check

to

see

if

the

strobo

indexes

appear

stationary

after

placing

turntable

platter

and

belt.

(Fig.

18)

8.

VOLTAGE

CHANGEOVER

(MODEL

E

AND

G)

(1)

Remove

the

turntable

platter,

remove

the

screw

which

fasten

the

protector

and

remove

the

protector.

(Fig.

19)

(2)

Withdraw

the

plug

and

reinsert

it

in

such

a

way

that

the

desired

voltage

marking

is

exposed

in

the

cut

of

the

plug.

(3)

Fasten

the

protector

with

the

screw.

@5

a

if

TROUBLE

SHOOTING

1.

The

tone

arm

will

not

automatically

return.

Remove

the

turntable

platter

and

check

to

see

that

the

clearance

between

gear

of

center

shaft

and

ratchet

is

reasonable.

(Fig.

15)

No:

Yes:

Loosen

three

screws

which

fasten

the

center

shaft,

and

adjust.

Rotate

adjusting

screw(Fig.

16)

of

tone

arm

fixing

plate

counter-clockwise.

2.

The

tone

arm

returns

some

seconds

after

the

end

of

the

performance.

Rotate

adjusting

screw

(Fig.

16)

of

tone

arm

fixing

plate

counter-clockwise.

3.

The

tone

arm

returns

before

the

end

of

the

performance.

Rotate

adjusting

screw

(Fig.16)of

tone

arm

fixing

plate

clockwise.

4.

The

turntable

platter

will

not

rotate

even

though

the

tone

arm

is

above

the

disc.

Check

to

see

that

the

strobo

light

is

ON.

Yes:

Check

to

see

that

the

belt

is

in

place

on

the

pulley.

No:

Check

to

see

that

the

power

|

©

‘Yes:

Check

the

fuse.

No:

Yes:

Check

to

see

that

the

motor

is

rotating.——|_

No:

Fit

the

belt.

plug

is

securely

connected.

No:

Connect

the

plug.

5.

The

turntable

platter

will

not

stop

rotating.

Check

to

see

if

the

turntable

will

stop

rotating

when

knob

of

microswitch

is

sufficiently

pushed.

oe

Adjust

the

clearance

between

the

knob

of

microswitch

and

tip

of

tone

arm

fixing

plate

to

1

mm.

(Fig.

16)

No:

Check

the

wiring.

No:

Yes:

No:

Yes:

Replace

wiring

according

to

the

circuit

diagram.

Check

the

microswitch.

Microswitch

defective.

Capacitor

defective.

6.

Adjustment

of

turntable

speed

cannot

be

made.

+

Strobo

indexes

appear

not

to

stand

still.

Readjust

semi-fixed

variable

resistors

referring

to

TURNTABLE

SPEED

of

ADJUSTMENTS.

\

+

No

speed

adjustments

with

variable

resistor

knob.

Check

the

wirings

including

the

motor

servo

control

circuit.

No:

Yes:

No:

Yes:

No:

Yes:

7.

Noise

from

turntable.

Replace

wiring

according

to

the

wiring

diagrams.

Check

the

variable

resister.

Variable

resister

defective.

Check

the

rotaly

switch.

Rotaly

switch

defective.

Motor

defective.

Check

for

noise

with

turntable

platter

removed.

Yes:

No:

Check

motor.

Yes:

No:

Check

if

turntable

platter

touches

the

other

parts.

Adjust

the

height

of

turntable

platter.

Turntable

shaft

is

defective.

Yes:

Check

the

turntable

bearing.

Check

to

see

that

10+1V

is

available

from

the

secondary

of

the

transformer.

No:

Ok:

Check

the

microswitch.

:

Replace

the

fuse.

@6

:

Replace

the

microswitch,

:

Transformer

defective.

:

Check

the

leads

from

the

AC

:

Motor

defective.

:

Check

to

see

that

proper

voltage

is

available

at

the

primary

of

the

transformer.

circuit

board

to

the

primary

of

the

transformer.

8.

No

sound

from

the

speaker.

Check

to

see

that

the

output

cords

are

securely

connected

to

the

amplifier

(receiver).

No:

Connect

the

cord.

Yes:

Check

to

see

that

connections

are

made

to

the

PHONO

input

terminals

of

the

amplifier.

No:

Connect

to

PHONO.

Yes:

Check

to

see

that

the

select

switch

of

the

amplifier

is

placed

to

PHONO.

No:

Place

select

switch

to

PHONO.

Yes:

Remove

the

headshell,

touch

the

upper

two

pins

at

the

end

of

the

arm

with

a

metal

screwdriver

and

listen

for

the

speaker

to

produce

a

humming

noise.

(Fig.

20)

|

ne

Perform

continuity

test

between

the

arm

and

output

cords.

No:

:

:

Make

correct

connections.

Yes:

Check

the

connections

between

the

cartridge

and

headshell.

—(

Ves:

Cartridge

defective.

9.

The

tone

arm

will

not

go

down

even

with

the

lifter

lever

in

¥

position.

Check

to

see

that

release

assy

(No.

22)

moves

to

cooperate

with

operating

plate

assy

(No.

20)

when

the

lifter

lever

A

is

pushed

down.

No:

Check

to

see

that

the

screw

(No.

211)

is

correctly

fastened

to

lifter

lever

B.

:

No:

Fasten

the

screw.

i

No:

Mount

the

release.

Yes:

Check

to

see

that

the

release

is

correctly

mounted.

—{_

Yes:

The

release

is

defective.

Yes:

Check

to

see

that

the

lifter

shaft

assy

(No.

22)

moves

down

when

the

lifter

lever

A

is

pushed

down.

pe:

Replace

lifter

shaft

assy

or

lifer

boss

(No.

23).

Yes:

Loosen

the

screw

which

fastens

tone

arm

support

and

adjust

the

clearance

between

stylus

point

and

record

surface

to

5—10mm

when

lifter

lever

is

in

position,

referring

to

STYLUS

POINT

HEIGHT

of

ADJUSTMENTS,

10.

The

turntable

is

rotating

but

the

strobo

light

will

not

light.

Check

the

12

k&

resistor

which

is

connected

with

neon

lamp

in

series.

Yes:

Neon

lamp

is

defective.

No:

Replace

12

kQ

resistor.

PARTS

REPLACEMENT

1.

TONE

ARM

Remove

tone

arm

referring

to

DISASSEMBLY

INSTRUC-

TIONS,

5

step

(1)

to

(7)

and

replace.

To

reassemble,

use

é

;

DIASSEMBLY

INSTRUCTIONS

in

reverse.

Adjust

the

Connection

pin

tone

arm

referring

to

ADJUSTMENTS,

3,

5

and

6.

2.

TURNTABLE

SHAFT

Remove

the

three

screws

which

hold

the

turntable

shaft,

and

adjust

the

gap

between

the

turntable

gear

and

ratchet

A

referring

to

the

ADJUSTMENTS,

4.

Be

sure

to

check

auto

return

operation.

3.

MOTOR

Remove

bottom

base

in

accordance

with

DISASSEMBLY

INSTRUCTIONS,

3.

Remove

the

motor

as

shown

in

DiS-

ASSEMBLY

INSTRUCTIONS,

4.

Replace

the

new

motor

and

fasten

it

by

screws.

After

binding

the

wires

to

lug

ter-

minal

tightly

and

solder

them.

4.

LIFTER

LEVER

A

(CUEING

LEVER)

With

DISASSEMBLY

INSTRUCTIONS,

6

as

a

guide,

re-

move

lifter

leverA.Replace

the

lifter

lever

A

so

that

it

becomes

parallel

with

the

edge

of

panel

board

when

cueing

lever

lines

up

to

Y

position

(Fig.

21).

5.

CUEING

(LIFTER

SHAFT)

Remove

return

plate

(No.

36

in

EXPLODED

VIEW)

from

sub-chassis.

Remove

lifter

base

(No.

17),

and

remove

tone

arm

support

(No.

27)

from

lifter

shaft.

Pull

out

the

lifter

shaft

in

the

direction

of

downward.

Replace

new

lifter

shaft

after

adhering

10°

CS

silicon

oi!.

After

finishing

reassembl-

ing,

be

sure

to

check

the

gap

between

stylus

point

and

re-

cord

surface

referring

to

ADJUSTMENTS,

3.

(Fig.

22)

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Buulp,

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Internal

motor

R6

1.5K

WW

$

R4

180K

psig

FICE

te

Dt

HV-23G

On

n

mm

C4047

u

91K)

(

R2

82K

$=

LE

C8

10n

Cq

0.0022”

(0.033%)

Note

Servo

Controller

Circuit

Diagram

Accessory

Parts

onnection

:

as_metioned

above

|point

A

to

B(B-C=open)

circuit

constant

IC

code

numbe:

1003.2

C1003

f

@11

as

mentioned

in(__)|point

B

to

C

(A-B=open)

C3

0.047244

Code

Number

R7

33K

VRI

20K