Jvc L-f66 User manual

JVC

L-F66

FULLY

AUTOMATIC

DIRECT

DRIVE

TURNTABLE

No.

2526

March

1980

Contents

2.

1.

.

Service

Precautions

.

Block

Diagram

.......

'.

Adjustment

Procedures

Specifications.

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

.

Removal

Procedures

3(1)

Botton

Coverens

ico

sitesi

setincess

wesw!

2

3-(2)

Printed

Circuit

Board

wate:

Names

and

Their

Functions.

aes:

.

Exploded

Views

5-(1)

Turntable

and

Cabinet

Ass'y

5-(2)

Mechanism

Ass’y

5-(3)

Tonearm

Ass'y

. . .

7-(1)

Tonearm

Height

Elevator

7-(2)

Lead-in

7-(3)

Lead-out

WARNING!

|

11.

Accessories

List.

12.

L-F66

Schematic

Diagram.

13.

Packing

Materi

14.

Parts

List

with

Specified

Number

for

15.

Power

Specification

.

When

replacing

the

Parts

marked

with

A\

,

be

sure

to

use

the

designated

parts

to

ensure

safety.

Service

Precautions

=

NOTES

4,

No,

2526

When

the

tonearm,

turntable

mechanism

or

the

like

has

been

removed

or

serviced,

be

sure

to

adjust

lead-out.

Especially

when

the

tonearm

has

been

replaced,

be

sure

to

adjust

lead-in

together

with

lead-out.

.

Operating

the

turntable

while

listening

to

a

FM

broad-

cast,

especially

if

the

FM

tuner

is

set

off

station

will

cause

noise

to

be

induced

into

the

tonearm.

Therefore,

perform

correct

tuning

for

proper

use.

8.

Troubleshooting

Charts

8-(1)

Turntable

does

not

rotate..............-

8-(2)

Turntable

rotates

at

high

speed

.

. .

8-(3)

Tonearm

does

not

return

on

play.

.

8-(4)

Tonearm

does

not

reject

when

pressing

REJECT

Button

535.55:

015

sheus

sis

esi

eteie

we

10

8-(5)

Turntable

does

not

rotate

when

pressing

START

button

.

»

60°10)

9.

Connection

Diagram

-

ore

AT

10.

Printed

Circuit

Board

Ass’y

and

eae

List

Perk

i

|

Sere

Designated

Areas.

.

In

addition,

if

the

signal

cord

and/or

power

cord

of

the

turntable

is

located

near

the

AM

bar

antenna

harmonic

hum

will

occur.

.

On

Oiling

.

Oiling

the

motor:

Not

required.

turns

in

either

direction.

CHECKING

YOUR

LINE

VOLTAGE

(For

U.S.

Military

Market

and

Other

Countries)

Before

inserting

the

power

plug,

please

check

this

setting

to

see

that

it

corresponds

with

the

line

voltage

in

your

area.

If

it

doesn’t,

be

sure

to

adjust

the

voltage

selector

switch

to

the

proper

setting

before

operating

this

equipment.

The

voltage

selector

switch

is

located

on

the

cabinet

under

the

platter.

Simply

insert

a

screw

driver

into

the

voltage

selector

switch

and

turn

it

in

either

direction

while

pressing

slightly

and

in

such

a

way

that

desired

voltage

marked

on

the

switch

is

positioned

at

the

arrow

marked

on

the

cabinet

under

the

platter.

The

voltage

selector

switch

accommodates

up

to

three

2.

Specifications

TURNTABLE

Type

Drive

Motor

Speeds

Wow

and

Flutter

Signal

to

Noise

Ratio

Speed

Adjustment

Range:

Platter

CARTRIDGE

:

Fully

automatic

Direct-drive

turntable

:

DC

Servomotor

:

33-1/3

and

45

rpm

:

Less

than

0.03%

(WRMS)

0.05%

(DIN)

:

More

than

75

dB

(DIN-B)

More

than

+3%

:

30.8

cm

diameter

Die-cast

aluminum

alloy

(Except

the

L-F66

for

U.S.A.,

Canada)

Type

Stylus

Optimum

Tracking

Force:

Output

Frequency

Response

Separation

Load

Impedance

Compliance

3.

Removal

Procedures

3-(1)

Remove

the

13

screws

(1)

-

(13)

shown

in

the

diagram

:

Moving

magnet

:

0.6

mil.

conical

diamond

DT-21S

1.75g

+0.25g

:3

mV

(1

kHz)

:

10

to

25,000

Hz(DT-Z1S)

:

Better

than

25

dB

(1

kHz)

247

kQ

to

100kQ

:

30x

10°

cm/dyne

(Static)

10

x

10°

cm/dyne(Dynamic)

Bottom

Cover

below,

and

lift

the

bottom

board

off.

|

u

Fig.

1

TONEARM

Type

Effective

Arm

Length

Overhang

Applicable

Tracking

Force

Range

Applicable

Cartridge

Weight

GENERAL

Dimensions

Weight

Power

Supply

Power

Consumption

3-(2)

:

Statically

balanced

S-shaped

tubular

arm

with

JVC

developed

TH

(Tracing

Hold)

balancing

system

and

tracking

force

dial

in

0.1

gram

steps.

:

220mm

:

15mm

:

0

to3

grams

:

12.5~18.5

grams

(including

headshell)

:

13.4(H)

x

43.8(W)

x

38.2(D)cm

(With

cover

closed)

(5-9/32”

x

17-1/4"

x

15-1/32")

25.2

kg

(11.5

Ibs)

(Without

corrugated

cardboard

case)

:

See

table

on

the

back

cover

:

See

table

on

the

back

cover

Printed

Circuit

Board

1.

Remove

the

start

and

repeat

rods.

2.

Remove

screw

(1).

Note:

Screw

(2)

is

used

to

secure

the

heat

sink.

start

rod

repeat

rod

Fig.

2

NOTE:

When

remounting,

confirm

that

the

wiring

does

not

touch

any

transistor

on

the

printed

circuit

board.

No.

2526

Names

and

Their

Functions

Fig.

3

.

Stroboscopic

Pattern

The

stroboscopic

pattern

on

the

outer

circumference

of

the

platter

is

used

to

check

RPM.

Adjust

RPM

with

SPEED

ADJUST

knob

until

the

stroboscopic

pattern

looks

standing

still

—

the

specified

power

frequencies

and

RPM.

are

shown

on

the

front

panel

ass’y.

.

SIZE

SELECT

Switch

Setting

of

this

switch

is

made

according

to

the

record

size.

17

cm

record:

Press

this

switch

in

(=).

30cm

record:

Re-depress

this

switch

out

(Mf

).

Note:

When

it

has

been

already

pressed,

press

it

once

again.

.

SPEED

ADJUST

Knob

F<:

Turn

this

knob

in

this

direction

(counterclock-

wise)

to

increase

the

platter

rotating

speed.

S

»

:

Turn

this

knob

in

this

direction

(clockwise)

to

decrease

the

platter

rotating

speed.

.

SPEED

Indicators

This

indicator indicates

RPM

33

or

45.

When

RPM

changes,

the

indicator

lamp

lights

corresponding

to

that

functioning

RPM.

.

REPEAT

Indicator

This

indicator

indicates

the

repeat

play

of

the

record.

This

indicator

lights

by

pressing

the

REPEAT

switch

in

(m).

.

ANTI-SKATING

Knob

This

knob

is

used

to

eliminate

the

force

that

pulls

the

tonearm

inward

by

centripetal

force,

and

to

prevent

the

stylus

from

sliding

or

applying

too

much

force

to

the

inner

wall

of

the

record

groove.

10.

11.

With

a

conical

stylus,

set

the

knob

to

the

scale

gradua-

tion

marked

with

®@,

while

using

an

elliptical

stylus

or

Shibata

stylus,

set

the

knob

to

the

scale

graduation

marked

with

@@.

.

CUEING

Lever

To

lower

the

tonearm,

set

this

lever

to

“¥

"

side,

when

lifting

it,

set

this

lever

to’

¥”

side.

.

START

Switch

To

start

record

play,

press

this

switch.

Pressing

this

switch

causes

the

tonearm

to

automatically

detect

the

record

size

and

slowly

lower

at

the

set

position.

.

REJECT

Switch

To

stop

record

play

at

halfway,

press

this

switch.

NOTE:Even

though

REJECT

switch

is

pressed

to

stop

the

record

halfway,

if

the

REPEAT

switch

remains

pressed

(=),

the

repeat

play

function

continues.

When

turning

off

the

power,

re-

depress

the

REPEAT

switch

out

(M.)

and

then

press

the

REJECT

switch.

REPEAT

Switch

To

play

a

record

repeatedly,

press

this

switch

in

(m=).

NOTE:To

stop

repeated

play,

re-depress

to

set

it

off

out

(

M).

SPEED

Switch

Changes

the

turntable

RPM

to

correspond

to

the

record

RPM.

45

RPM

record:

Press

this

switch

in

(=).

33

1/3

RPM

record:

Re-depress

this

switch

out

(

EL

).

Note:When

it

has

already

been

pressed,

press

it

once

again

(Bl).

5.

Exploded

Views

5-(1)

Turntable

and

Cabinet

Ass’y

Ae

Parts

Number

Parts

Name

arty

ne

Parts

Number

Parts

Name

Q'ty

1

|

TXX-279C

P.C.

Board

1

40

|

E65921-002

Screw

4

2

|

MP-305S

Tonearm

Ass‘y

1

41

|

£65921-002

Screw

3

|

MC942E

Motor

Ass‘y

1

42

|

E67066-002

Start

Rod

1

4

|

F4041

Mecha.

Ass’y

1

43

|

E67067-001

Repeat

Rod

1

5

|

E10455-001

Cabinet

1

44

|

E65922-005

Screw

4

6

|

E35457-003

Frame

1

45

|

E65923-001

Screw

i

7

|

E65921-002

Screw

2

46

|

E65922-002

Screw

2

8

|

E23416-003

Panel

Ass’y

1

47

|

E65921-002

Screw

3

9

|

E23363-003

Panel

1

48

|

SBSB3008Z

Screw

1

10

|

E300750-002

Push

Button

5

49

|

E61824-007

Cushion

2

11

|

£67063-002

Spring

2

50

|

E65751-001

Plate

2

12

|

E67032-001

Prism

1

51

|

E65921-002

Screw

4

13

|

E67033-001

Ornament

1

52

|

£22884-002

Turn

Table

1

14

|

E65921-002

Screw

6

53

|

E22719-001

Turntable

Covering

1

15

|

E65759-001

Motor

Holder

1

54

|

QMLO002-051

|

Lug

Strip

Ass’y

1

16

|

E67480-001

Lever

1

55

|

E03697-003

Signal

Cord

1

17

|

E65759-001

Motor

Holder

1

56

|

E10299-001

Dust

Cover

Ass'y

1

18

|

E67481-001

Connecting

Rod

1

57

|

EG30133-001

Hinge

Ass’y

2

19

|

E67482-001

Rod

1

58

|

E67245-001

Shield

Base

1

20

|

E65923-001

Screw

3

59

|

E67246-001

Shield

Cover

1

21

=|

G8292-1

Rubber

Tube

1

60

|

E65921-002

Screw

1

22

|

Q03091-105

Washer

2

61

|

SBSB3008Z

Screw

2

23

|

E300753-002

Base

Ass’y

1

62

|

See

page

16

Power

Cord

1

24

|

E300752-001

Base

Sub

Ass’y

1

63

|

E03830-001

Connector

2

25

|

E300751-001

Base

1

64

|

E65465-001

C.S.

Plate

1

26

|

E67028-001

Stud

1

65

|

QHS3876-162

Cord

stopper

1

27

|

€67027-001

Shaft

1

66

|

EWS015-023

Socket

Wire

Ass‘y

1

28

|

E300755-001

Lever

4

67

|

E10456-001

Bottom

Board

1

29

|

REE3000X

“E”

Ring

1

68

|

E65922-007

Screw

14

30

|

E65921-002

Screw

3

69

|

E35857-005

Insulator

4

-

31

|

E300754-001

Link

1

70

|

E65923-002

Screw

2

32

|

E67468-001

Bracket

1

71

=|

E65923-001

Screw

2

33

|

E65921-002

Screw

1

72

|

E65395-002

Mask

Cap

1

34

|

E67029-001

Lever

1

181

|

E67479-001

Lever

|

35

|

E61713-001

Volume

Knob

1

182

|

QML1810-054

Lug

Strip

Ass’y

1

36

|

E67031-001

Prism

a)

183

|

See

Page

16

Transformer

1

37

|

E65921-003

Screw

2

184

|

See

Page

16

Fuse

1

38

|

E300755-001

Lever

1

185

|

See

Page

16

Cord

Clamp

1

39

|

E65922-002

Screw

2

No.

2526

5-(2)

Mechanism

Ass‘y

Fig.

5

-

i

Parts

Number

Parts

Name

Q'ty

el

Parts

Number

Parts

Name

Q'ty

81

|

E300761-002

Base

Ass’y

1

103

|

E67353-001

Elevator

Cam

1

82

|

G8292-1

Rubber

Tube

1

104

|

E67047-001

Spring

1

83

|

E300763-001

Motor

1

105

|

E67157-002

Kick

Lever

1

84

|

E67244-001

Bracket

1

106

|

REE3000X

“E"

Ring

1

85

|

SPSP2003N

Screw

2

107

|

E67048-001

Guide

Lever

1

86

|

E67044-003

Worm

Gear

1

108

|

E67348-001

Spring

i}

87

|

E67243-001

Rubber

Bushing

3

109

|

E60912-001

Speed

Nut

1

88

|

SBSB3008Z

Screw

3

110

|

REE3OOOX

“E”

Ring

1

89

|

E67442-001

Spacer

3

111

|

E67049-001

Start

Lever

1

90

|

E300764-002

Driver

Ass’y

1

112

|

E67361-001

Repeat

Lever

Ass’y

1

91

|

E300765-002

Driver

1

113

|

E49651-002

Reject Spring

1

92

|

E60398-002

Lead-in

Lever

1

114

|

REE3O0OX

“E“

Ring

1

93

|

£65741-001

Push

Lever

1

115

|

€67052-001

Trigger

1

94

|

E60912-001

Speed

Nut

3

116

|

E49651-002

Reject

Spring

1

95

|

E60399-001

Spring

1

117

|

SBSB3008Z

Screw

1

96

|

REE4000

“E”

Ring

1

118

|

REE3000X

“E”

Ring

1

97

|

E67045-001

Connecting

Rod

1

119

|

E67053-001

Index

Lever 1

98

|

E67323-002

Gear

Ass’y

1

120

|

WSS4000N

Washer

1

99

|

REE3000X

“E”

Ring

1

121

|

£49651-001

Spring

1

100

|

E67046-001

Gear

1

122

|

REE3000X

“E"

Ring

1

101

|

E67365-001

Spring

1

123

|

E67054-001

Switch

Lever

1

102

|

LPSP3006ZS

Assy

Screw

1

124

|

REE3000X

“E”

Ring

1

125

|

E49651-002

Reject

Spring

1

5-(3)

Tonearm

Ass’y

NOTE:

190,

191,192...

Except

U.S.A

and

Canada.

Fig.

6

—

Parts

Number

Parts

Name

]

Q'ty

Hs

Parts

Number

Parts

Name

O'ty

131

|

€23378-001

Tonearm

1

156

|

£66011-001

Spring

Washer

1

132

|

E23379-001

Arm

Ass'y

1

157

|

E300807-001

Phot

Interrupter

Holder

1

133

|

£66423-001

Main

Weight

1

158

|

SBSB3008Z

Screw

1

134

|

E23380-001

Tonearm

Base

Ass’y

1

159

|

E67089-001

Spring

1

135

|

E23381-001

Tonearm

Base

Sub

Ass’y

1

160

|

YRS4008FS

Set

Screw

1

136

|

E60982-004

Arm

Rest

Ass’y

1

161

|

E300785-001

Arm

Lever

Ass‘y

1

137

|

E35900-003

Antiskating

Knob

1

162

|

G8292-1

Rubber

Tube

1

138

|

E49602-002

Wave

Washer

1

163

|

£67283-001

Roller

1

139

|

E35901-001

Antiskating

Lever

1

164

|

£67316-001

“C"

Ring

1

140

|

E65825-001

Antiskating

Plate

1

165

|

£49611-001

Spring

1

141

|

E65826-001

Spring

Holder

1

166

|

YRS3006FS

Set

Screw

2

142

|

E65827-001

Spring

1

167

|

E23194-003

Head

Shell

Ass’y

1

143

|

E300780-001

Cueing

Ass’y

1

168

|

E23189-003

Head

Case

Ass‘y

1

144

|

E67076-001

Cueing

Base

Ass’y

1

169

|

E60501-009

Wire

Ass‘y

1

145

|

£67077-001

Shaft

1

170

|

E60502-008

Screw

2

146

|

E67078-001

Spring

1

171

|

£60503-001

Nut

2

147

|

E67079-001

Bushing

1

172

|

£G82971

Washer

2

148

|

E300783-001

Cueing

Shaft

Ass‘y

1

173

|

REE2000

“EB”

Ring

1

149

|

E65829-002

Elevator

Ass’y

1

174

|

REE3000

“E”

Ring

1

150

|

E65835-001

Screw

1

175

|

REE4000

“E”

Ring

1

151

|

E49649-001

Spring

1

176

|

SBSB2608Z

Screw

1

162

|

E300784-001

Phot

Interrupter

Bracket

1

177

|

SBSB3008Z

Screw

5

153

|

E65923-001

Screw

1

178

|

SBSB3012Z

Screw

1

154

|

£67317-001

Spacer

1

179

|

E23158-001

Pipe

Holder

1

155

|

E67083-001

Adjustor

1

180

|

E300787-001

Rotor

Cover

1

190

|

MD-1025

Cartridge

Body

|

191

|

DT-Z1S

Stylus

Ass’y

1

192

|

E34268-001

Stylus

Cover

1

6.

Block

Diagram

Tonearm

—

LL

Shutter

Mecha

Turntable

#

Proto

Oreos

Drive

Motor

-~

interrupter

AWWA]

ee

__

Mechanism

Gear

|

Autovreturn

‘Meena

|

Drie

Circuit

Detector

Cireust

=

-

bey

ag)

SE

|

ee

eee

13

aL

_i|

Circuit

1

i

Fig.

7

7.

Adjustment

Procedures

7-(1)

Tonearm

Height

Elevator

Adjust

the

height

of

the

tonearm

with

the

adjustment

screw

so

that

the

distance

between

the

stylus

tip

and

the

surface

of

record

is

about

6

mm

when

the

stylus

is

cued

up.

Turn

the

height

adjustment

screw

clockwise

to

lower,

and

counterclockwise

to

raise

the

tonearm

level.

(Fig.

8)

Adjustment

Screw

Fig.

8

7-(2)

Lead-in

With

a

30-cm

record

on

the

platter,

adjust

lead-in

with

a

screwdriver

so

that

the

stylus

is

set

down

at

3

to

4mm

in-

ward

from

the

outermost

edge

of

the

record

disc.

Turning

the

lead-in

adjusting

screw

clockwise

makes

the

stylus

to

lower

inside

the

record

disc,

while

turning

the

lead-in

adjusting

screw

counterclockwise

causes

it

to

lower

outside.

NOTE:

Ensure

that

the

rubber

mat

does

not

float

and

contact

the

size

detecting

switch.

(Fig.

9)

The

adjustment

screw

for

changing

the

tone

arm

lead-in

position

is

located

at

the

bottom

of

the

hole.

Fig.

9

-6-

No.

2526

7-(3)

Lead-out

Adj

and

the

(A)

(1)

(2)

just

lead-out

in

accordance

with

the

following

Items

1

2.

The

TP

numbers

are

test

point

numbers

inscribed

on

logic

board.

(Fig.

10)

Start

Point

Measure

the

voltage

at

TP-4

with

the

tonearm

disengag-

ed

from

the

tonearm

rest.

(With

the

turntable

in

rota-

tion)

Adjust

the

lead-out

start

point

by

turning

the

lead-out

adjusting

screw

shown

in

Fig.

10

so

that

the

voltage

with

the

stylus

positioned

at

65

mm

away

from

the

platter

center

becomes

5%

lower

than

the

voltage

with

the

tonearm

secured

on

the

tonearm

rest.

NOTE:

Use

a

screwdriver

of

the

proper

size.

(B)

Sensitivity

°

(1)

(2)

M4)

(2)

If

lead-out

is

to

be

made

by

the

end

groove

(To

raise

the

sensitivity)

Connect

the

positive

and

negative

termindls

of

the

tester

to

TP-2

and

TP-3

respectively.

Decrease

the

indicated

voltage

by

0.2

V

decrements

by

turning

the

lead-out

adjusting

screw;

at

each

decre-

ment,

adjust

the

lead-out

sensitivity

until

the

tonearm

is

lead

out

from

the

record.

If

lead-out

is

to

be

performed

by

the

sound

groove.

(To

lower

the

sensitivity)

Connect

the

negative

and

positive

terminals

of

the

tester

to

TP-2

and

TP-3

respectively.

Increase

the

indicated

voltage

by

0.2

V

increments

by

turning

the

lead-out

adjusting

screw;

at

each

increment

adjust

the

lead-out

sensitivity

until

the

tonearm

does

not

lead

out

from

the

record.

Leadout

adjustment

screw

(C)

Photo-Interrupter

(1)

(2)

(3)

No.

2526

Measure

the

voltage

at

TP-4

with

the

tonearm

dis-

engaged

from

the

tonearm

test.

(With

the

turntable

in

rotation)

Connect

the

positive

and

negative

terminals

of

the

tester

to

TP-2

and

TP-3

respectively,

and

adjust

VR802

so

that

the

voltage

becomes

0.06

times

greater

than

the

voltage

initially

indicated.

After

adjusting,

check

the

lead-out

sensitivity

as

described

in

“lead-out

sensitvity

adjustment.”

How

to

handle

the

solderless

connector

(for

USA

and

Canada

only)

In

this

turntable,

a

solderless

connector

is

used

to

connect

the

power

cord

with

the

primary

lead

wire

of

the

power

transformer.

When

it

is

unavoidable

to

replace

this

connector

for

re-

placement

of

the

power

transformer,

or

the

like,

positively

perform

the

replacement

in

accordance

with

the

following

procedure

to

avoid

dangers.

Connector

part

number

£03830-001

(Assembly

diagram

No.

64)

Tools

Do

not

use

those

(small

cutting

pliers,

etc.)

other

than

regular

tools.

Replacement

.

Cut

both

the

power

cord

and

the

primary

lead

wire

at

near

the

edge

of

the

connector

to

be

replaced.

NOTE:

Do

not

re-use

the

used

connector.

.

Peel

off

the

coverings

so

that

the

respective

conductor

tops

appear

by

about

15mm.

NOTE:

In

the

case

of

stranded

wires,

twist

each

wire.

.

Adjust

the

tips

of

the

power

cord

and

the

primary

lead

wire

with each

other,

then

securely

insert

them

into

the

connector.

.

Secure

the

nearly

equal

central

part

of

the

metal

sleeve

with

the

second

concave

(2.0)

of

the

tool

for

solderless

securing

as

shown

on

the

right.

NOTE:

Perform

a

complete

securing.

.

After

solderless

securing,

check

the

following

four

points

shown

below.

go

a

about

15

mm

Ny

la

Va

Cut

at

near

the

edge.

Metal

sleeve

Solderless

connector

Tool

for

solderless

securing

The

clamped

markes

shall

locate

at

the

nearly

These

shall

not

be

easy

«equal

central

part

of

to

draw

out.

the

metal

sleeve.

—_—

han

4

2

More

than

4

mm.

Fig.

11

8.

Troubleshooting

Charts

9-(1)

Turntable

does

not

rotate

The

turntable

does

not

rotate.

Does

24V

DC

appear

at

the

motor

base

Check

the

connection

of

R21,

When

a

shorseiccult

to

see

whether

X13

or

X15

is

made

between

the

collector

{between

the

positive

and

negative

terminals)?

Does

the

voltage

appear

at

the

emitter

of

X814?

Does

the

voltage

appear

at

the

collector

of

X814?

Does

the

AC

voltage

appear

between

Pins

1

and

2?

Check

the

soldered

points

of

the

connection

cord

and

the

power

board,

to

see

whether

the

connection

cord

is

in

con-

tact

with

the

power

board,

etc.

Check

whether

X812

or

-

X813

is

open

or

short-

circuited,

whether

D805

is

short-circuited,

whether

D805

or

R853

is

disconnect-

ed,

etc.

If

anything

is

defective

replace

it.

Check

whether

D806

is

open,

whether

the

printed

pattern

is

cut,

etc.

If

anything

is

defective

replace

Check

the

fuse

of

the

pri-

mary

winding

of

the

trans-

former,

the

connection

of

the

transformer,

the

solder-

ed

points

of

the

AC

cord,

etc.

If

anything

is

defective,

replace

or

repair

it.

—————

|

is

open,

or

whether

something

is

causing

the

base

of

X14

to

be

grounded...

and

emitter

of

X13,

does

the

turntable

rotate?

When

a

short-circuit

is

made

between

the

collector

and

emitter

of

X12,

does

the

turntable

rotate?

Check

to

see

whether

X12

is

open,

or

whether

the

printed

pattern

is

cut,

etc.

Check

to

see

whether

X11

is

open,

or

whether

the

printed

Pattern

between

the

collector

of

X12

and

the

base

of

X11

is

cut,

etc.

When

a

short

circuit

is

made

between

the

collector

and

emitter

of

X11,

does

the

turntable

rotate?

Does

the

output

appear

between

the

bases

of

X5

and

X7

or

between

the

bases

of

X6

and

X8?

Does

the

turntable

rotate

by

hand?

Does

the

output

appear

either

between

the

bases

of

X5

and

X7

or

between

the

bases

of

X6

and

X8?

Any

of

X1

-

X8

may

be

defective.

Or

check

the

connection

of

the

drive

coils.

Check

the

connection

of

R2-

R5,

ete.

Is

the

connection

wire

of

the

speed

selecting

circuit

dis-

connected?

Does

the

record

rotate

either

at

33-1/3

or

45

RPM?

Yes

Does

the

(one

changeover

switch

have

a

contact

failure?

Check

to

see

whether

CS

is

short-circuited,

or

whether

a

short-circuit

is

made

between

the

collector

and

emitter

of

X17.

Check

the

HG

between

those

bases

between

which

no

output

appears.

|

Replace

the

connection

wire.

Replace

the

change-

over

switch,

R31

or

R32

is

defec-

tive.

Or

check

to

see

whether

the

connec

tion

cord

is

dis-

connected.

‘No.

2526

9-(2)

Turntable

rotates

at

high

speed

|

The

turntable

rotates

at

high

speed.

Does

the

turntable

stop

when

TP-3

(the

collector

of

X13)

is

grounded?

Does

the

turntable

stop

when

the

base

of

X11

is

connected

to

the

+24

V

line?

Does

the

turntable

stop

when

the

collector

of

X11

is

grounded?

The

circuit

near

and

connected

to

the

connection

pattern

of

R11

and

R12

is

in

contact

with

the

+24

V

line.

Connect

the

base

of

X11

to

the

+24

V

line,

stop

the

drive

circuits,

then...

Check

to

see

whether

a

short-

circuit

is

made

between

the

collector

and

emitter

of

X810,

etc.

When

thhe

turntable

is

rotated

by

hand

ast

about

33-1/3

RPM,

does

the

FG

ouytput

of

0.8

mVp-p

anppear?

Check

the

connection

of

the

FG

pattern,

to

see

whether

the

rrotor

magnet

is

floating,

etc.

Check

to

see

whether

a

short-

circuit

is

made

between

the

collector

and

emitter

of

X11,

ete.

Replace

the

element

which

is

open.

Replace

X16.

No.

2526

=

Does

about

2

Vp-p

appear

at

the

1

of

1C1?

2Vp-p

Does

15.1

V

appear

at

8

of

101?

Check

the

connection

of

the

printed

pattern,

the

soldered

points

of

the

components,

etc.

Is

C7

or

D1

open?

Is

X16

open

between

its

collector

and

emitter?

X15

or

C6

is

dectetive,

or

the

like.

1C1

is

defective,

or

the

capacity

of

C11

is

lost,

‘or

check

the

connection

of

R42,

etc.

Does

@

square

wave

appear

at

TP-1

(the

7

of

1C1)?

1C1

is

defective,

the

capacity

of

CQ

is

lost,

or

the

like.

8-(3)

The

tonearm

does

not

return

‘tonearm

is

carried

quickly

to

the

inner

section

of

the

record

bby

hand,

does

it,

return?

When

this

re-

|

adjustment

is

of

no

effect,

and

when

less

than

BV

appears

at

|

Readjust

the

auto-return

(lead-out)

as

instructed

in

7413)

‘Check

to

see

whether

the

ad-

justed

VR802

is

greatly

out

Of

position,

or

whether

the

capacity

of

C805

is

lost,

or

whether

R827

or

R828

is

dis

connected,

or

whether

output

appears

at

TP-6.

If

anything

is

defective

repair

or

roplace

it.

on

record

play

‘When

TP-2

ie

grounded,

does

approx.

0'V

appear

at

the

1

of

18022,

10802

is

defective.

‘Or

cheek

the

connection

‘of

R832

and

R833,

etc

Since

the

capa-

city

of

C807

lost,

replace

TP-4

with

the

tonearm

put

‘on

the

tone-

‘arm

rest,

re

lace

P1802,

8-(4)

Tonearm

does

not

reject

when

REJECT

switch

is

pressed

‘The

tonoarm

doos

not

reject

when

REJECT

switch

is

pressed,

‘$0804

is

defective.

Or

the

pattern

in

its

vicinity

is

de

8-(5)

The

turntable

does

not

rotate

when

START

switch

is

pressed

‘The

turntable

doos

not

rotate

when

START

switch

is

pressad.

Does

Spprox

6

V

appear

fospectively

at

the

positive

‘and

negative

terminals

of

‘the

motor

£300763-00:

No

Does

approx

8V

appear

at

7

of

108027

Is

the

vol-

tage

at

6

of

1c

802

OV

oF

similar

vvalue

to

the

ground

voltage.

No

Yes]

10802

is

detective

or

R811

is

Since

the

motor

is

dis-

connected,

replace

it.

Yes

|

813

is

disconnected

or

X803

is

defective,

replace

it.

disconnected,

replace

it.

1s

the

output

at

§

of

1C801

at

“H"level?

1s

the

output

at

3

of

1803

at

“H"level?

Since

1C803

is

defect

place

it.

When

this

replace-

ment

is

not

effective,

Yes

Since

1C801

is

detective,

replace

it.

Yes

No,

“L"

level

Fe

START

switch

(S805)

is

defective,

Or

check

its

wiring,

‘Check

to

see

whether

the

pattern

and

circuit

REJECT

switch

is

dis-

connected

or

short-circuited.

=~10-

No.

2526

9.

Connection

Diagram

Direct

Drive

Motor

MC942E

Switch

P.C.

Power

Transformer

Lille

apy

Motor

Board

Ass‘y

TX

X-279-3

‘i

m

"eG

+

Lead-out

P.C.

Board

Ass’y

TXX-279-5

|

2

)

|

=——

/

1

|=

Y

im

1

Strobosicopic

LED

Volume

Control

P.C.

Board

Ass’y

P.C.

Board

Ass’y

Fig.

12

TXX-279-4

TXX-279-2

19.

i

ircuit

Board

Ass’

d

Parts

List

10.

Printed

Circuit

Board

Ass’y

and

Parts

Lis

OE

ie,

a,

.

_

ampaneoe-—

aoe

=

|

ye

i

cet,

See

ee

Eee

be

-

|

cs

7.

:

eh

ee

CALs

419.001

.

®

[oy

2

ie

yn,

DBOG

.

ESABCIOZA.

@

MN

BE

g

ABUIEOGA

,

@)

|

st

8

Fe

inc

y

x

©)

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;

2

4 i

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t.

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Dew

ec]

of

&

ae

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rr

2

one

Re

ahah

2

Aja

2

Pad

sae

SY

=

end’

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fies

J

ye

Aya

x

5

F802

33

0®@

ate

Ss,

:

be

;

ot

Kees

=

j

exr-8

ag

aa

3

6.2EB3

2

(P,

2

3

a

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ey

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10K

eRe

GP

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—

=

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R08

“SEK

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3

pes

aeR

®

ered

a

Pe

xe18

a6

Rao.

S50

:

scan

)\,

a

RELI.

KS

&X805

2S

571K,

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al

(PQ)

5

Fe

o=a

,

R035,

3

R830),

2.7K

-

:

gi

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+e

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ks

25

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|

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2atgasa

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ks

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res

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ba

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(aa

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oy)

ascsusamo

a

XBI6

2SCS45A(5Q)

Je

.

(ie

caeee,

Each

Individual

P.C.

Board

Location

ped

R032,

3.9K

R838,

R839

ir

7

@@

F

dans

=

z

‘

7,

,

5

1

po

Gp

>

®

|

LEOBC3.

SR5O3C

1.6

080.4-SG203

7A

ws

D803:966

2037,

l

Fig.

13

@)

TXX-279-1:

Logic

&

Power

Supply

P.C.

Board

Ass’y

@)

TXX-279-2:

Volume

Control

P.C.

Board

Ass’y

()

TXX-279-3:

Rest

Switch

P.C.

Board

Ass’y

@)

TXX-279-4:

Stroboscopic

LED

P.C.

Board

Ass’y

Fig.

14

(5)

TXX-279-5:

Lead-out

Censor

P.C.

Board

Ass‘y

44

Transistors

Capacitors

Trem

Ts

alumbe

re

item

No]

Part

Number

Rating

_[__

Description

No.

areameee

nis

c801

|

QETSIAR-476H

|

47uF

10V

|

Electrolytic

Po

7

Maker

C803

|

QFM31HK-473

|

0.047uF

SOV

Mylar

C804

QET51HR-476H

|

47uF

=

Electrolytic

X802

|2SC945A(P,Q)

|

0.25W

|

250

MHz

|

Silicon

NEC

ca0s

|

Q&z0046-476

”

“

as

X803

|2SD571(L,K)

|0.8W

|110MHz

|

“

re

C807

QEZ0046-224

O.22uFO

w

X804

|2scg45aiP,a)

|0.25w

|

250MHz

|“

6

csos

|

OFMsiHK-223

|

0.02qIF

“

Mylar

X805

|2SD571(L,K)

|o.8w

|110MHz|

“

7

803

|

QETSICR-476H

|

47UF

16v

|

Electrolytic

X808

|2SC945A(P,Q)

|0.25W

}250MHz]

”

a

C810

|

QETSIHR-476H

|“

SOV

2

811

|

QFM81HK-102

|

1000pF

Mylar

x810

|2sco4sa(p,a)|

”

"

a

3

C812

|

QETSIHR-476H

|

47uF

t

Electrolytic

x811

|2S8511(E)

tow

8MHz|

“

—

Sanyo

cai3

|

QETSIHR-108H

|

1000F

7

x812

|2sCo4saiP,a)

|0.25w

|250MHz|

“

NEC

814

|

QCE22HP-103A

|

0,01uF

500V

X813

|2SD438(D,E)

|0.75W}100MHz}|

”

—

Sanyo

C815

|

QET51AR-107H

|

100uF

10V

Electrolytic

Ps

3

817

|

QFM8iHK-103

|

0.01uF

Sov

|

Mylar

x814_

|28D313V(D,)

|

30W

8

MHz

cata:

|

Genevneeee.

|

os

o

My

X815

|2SC945A(P,Q)

|

0.25W

|250MHz

|

“

=

NEC

820

|

OFM31HK-223

|

0.022uF

SOV

Mylar

XB16

|2SC945A(P,Q)

|

“

.

id

#

821

|

QEZ0046-105

IMF

50v

|

Nonpolar

x818

|2scasa(r,a)

|

”

de

a

Electrolytic

Pig02

|ON1128

Photo

Matsushita

Integrated

Circuits

Resistors

fin

1

&r

=

Te

Vien

|

ss

SRiumnber

Rating

Description

Item

No.

|

Part

Number

Rating

Description

No.

R806

|

ORD141J-103SY

[10K2

1/4w

|

Carbon

R807

|

QRD141J-473SY

[47%kKQ

="

af

Re0s

|

ORD141J-563SY

|

56kQ

="

a

TC40116P

IC"

Toshiba

R809

|

QRD141J-272SY

|2.7kQ2

=”

a

'c802

|NJM4558D

0.5W

“JRC

R810

|

QRD141J-103SY

|10KQ

w

1cg03_|TC4011BP

Toshiba

hit

anoianier

|

=

zs

7

R812

|

QRDI41J-103sy

|

”

¥ a

R813

|

QRD141/-152SY

]1.5kQ

a

Diodes

R814

|

QRD141J-152sy

|

“

a ¢

7

R815

|

QRD141J-154sY

|

150kK2

%

vem

|

Part

Number

Rating

Description

rete

|

aRDiaiv-t0ssy

[10%KQ

“

No.

R817

|

QRD141J-152SY

]1.5kQ

=”

#

Maker

R818

QRD141J-222SY

|

2.2k2

~

cal

77

F

R819

|

aRDI29-560

|

5622

1/2w

i

D802

|182076-31

Bilicon

;

sen

R820_|

aRO141N-153SY

|

15kK2

_1/4W

a

0803

|

ERB12-02RKL

te

ui

a

R821

QRD141J-473SY

|

47kQ

is

ba

0805

|

RD6,2EB3

NEC:

R822

|

aRDI49-470s

|

472

i

pesos

|EsAB03-02A

|

AV

“Fuji

R826

|

QRD141J-271SY

|

2702”

a

0807

|

1S2076-31

“Hitachi

R827

|

QRD141J-103SY

|10K2

=”

is

Saas

Ras

a

NEE

R828

|

QRD141N-473SY

|

47kKQ

it

_|

fii

ack

Re29

|

QRD141J-473SY

|

“

«

‘

0811

|

182076-31

icon

R830

|

QRD148-2728

|

2.7%K2

wh

0812

|1S2076-31

R832

|

ORD141J-103SY

|

10k2

# i

L801

|

sR603c

LED

NEC

R833

|

QRD1414-132SY

|

1.3kQ2

”

LDg02|sR603c

x

By

R834

|

QRD141/-103SY

|

10k2

”

D803

|

SR603D

ae

Uj

L804

|sG203TA

-

e

L805

|

SG203TA

is

:

NOTE:

A\SAFETY

PARTS

No.

2526

=i2=

Resistors

Others

‘iptir

Ite

Jeom

iNo:,|

__

Bart

Number

Description:

om

|

Part

Number

Rating

Description

R835,

QRD141J-221SY

Carbon

No.

R836

QRD141J-683SY

x

eee.

|

Qupiar

eaey

-

‘swg01

|

QSP2210-062

Push

Sw.

R838

|

QRD129J-122

Sw802

|

QSP0230-104

R839

|

QRD129J-122

‘sw803

|

0SP0029-002

a

Reo

|

QRD141J-563SY

*

SW804|Q5P0029-001

ia

R41

|

QRD141J-184SY

“

swg0s

|

QSP2210-401

”

R844

|

ORD141J-562SY

he

@

R845,

QRD141J-562SY

:

‘Swe0e

|

Csk0020-002

neag

|

ORD141J-564SY

EWR33A-20NN

Flat

Wire

R847

QRD141J-103SY

ee

EWRSGA-1SNN

B

R849

|

QRV144F-9101

CMF

£43727-003

Tab

Reso

|

aRV144F-3601

"

£45524-002

Fuse

Clip

(Large)

R851

QRD141J-392SY

Carbon

£48965-002

*

(Small)

BGS2:

-

|

SORDIAA2208

£61537-001

Heat Sink

R853

|

QRD129J-103

fe

€67156-001

L.E.D.

Spacer

R854

|

QRD141J-331SY

“

R855

|

QRD141J-4738Y

"

R856

QRD141J-473SY

R857

QRD141J-103SY

=

Reco

|

QRD148J-473S

“

R861

|

QRD149J-470S

?

vrgo1

|

QVF3A78-014

Variable

vrgo2

|

avz3501-102

*

.

11.

Accessories

List

U.S.

Military

Market

and

Description

USA.

Canada

Europe

U.K,

Australia

other

countries

INSTRUCTION

BOOK

|

€30580-8594

|

E30580-8594

|

€30580-859

|

£30580-8594

|

£30580-859

|

£30580-859A

WARRANTY

CARD.

81200328

8T20025C

8720013

87200298

8T20032B(P)

SERVICE

PROCEDURE

|

8120042

8T20042(P)

DO

IT

BETTER

BT

20042

8T20042(P)

ENVELOPE

£41202-2

EP

ADAPTER

€66329-001 £66329-001 £66329-001 £66329-001 £66329-001

£66329-001

SIEMENS

PLUG

£04056

No.

2526

a

12.

L-F66

Schematic

Diagram

A

B

C

D

E

F

FyYy_ozva_a)

71

TXX-279-4

VRBO!

10K

£300763-001

SREOSC

RE

|

MECH

MOTOR

|

LEDBO!

LED8O2

|

an

© e

swsol

;

|

Sree.

——

|

DP

OM

sg

Hilo

an

1)

1

|

im

7e

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MC942E

a

!

|

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i

5611/2)

1

|

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0803

2

RBI:

|

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\,

it

gf

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+

z

7

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cals

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7

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;

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5

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pa

fy

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R857

XN.

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x16

é

87

xsis

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pasairia)

D807

ghese

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1S20/76-31)

IC

801,

1C803

XBll,

XBI4

R86!

47

+

1S2076-31

R833

|Cgga/23-3K

t

|

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for

K

|

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TP4OIIBP

NJM4558D

2SBSIKE),

280313V(D,E)

|

RE30

13K

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|

as

27K

Tay

|

EJ

&

EC

(for

USA

&

Canada)

ol

£03032-310

P,

TRANS

fsi¥

)LED803;

REO

{orn

+

X803,

X805

0802,

D807

Vane

|

ACI20V

6OHz

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LED801~

LED805

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l

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805

REST

SW.806

CAM

SW.803

|

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Sa

es

ee

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EP

&

EU

(for

Pacex

&

Other

areas)

°

—

D805,

D808

x802,

X804

ov

sty

EE

(for

Europe)

EA

(for

Australia)

aia

xoie.

X816,

X818

A

x8

13

FUSE!

|

TXX-

Fuse

|

FUSE

|

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LIVE

BRN

VOLTAGE

SELECT

oo

j

ony

we

|

rseomel

ac

240v~,

necomss

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240v~,

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ae

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act

ra

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oes

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a

[eae

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BRN

az

4

£03032-31R

P.

TRANS

A

£03032-31R

"P.TRANS

eORCsETSINGD

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4

=f

E

AC

i10V/120v/220v/240V

50/

60Hz

T

|

re

i

4--+4—1----4

240v

|

220v

7

TONE-ARM

COVER

EARTH

CONNECTION

|

1-5,

2-6

|

1-4,

3-6)

3-4

2-5

VOLT

tov

|

120v

A

B

Cc

D

E

F

Notes:

1.

The

voltage

indicated

in(__]

is

measured

by

a

tester

having

an

internal

impedance

of

33kKQ/V:!

2.

«mm

indicates

signal

path.

3.

When

replacing

the

parts

in

the

darkened

area

and

those

marked

with

A\,

be

sure

to

use

the

designated

parts

to

ensure

safety.

4.

This

is

the

standard

circuit

diagram.

The

design

an-|

contents

are

subject

to

change

without

notice.

MC

942E

1S-20mS

15-20mS

MC

942E

Janko

SS

co

NJUM78LI5A

15~20mS

-\.

cio

3V

6.001

DI

R40

SS

SSS

a=

her

R22

R23

X15

270.0

2700

1780"

on

2SK34(C

xI4

|

7.5V

2SA73.

:

c2

‘

—(_)

Por.

cK

>

VRS

at

33w/25V

R39;

i

S

fo2vi}

ZY

47K

NuMas580-D

10K

;

P

R26

X13]

2SA733Pork

~~

at

RIS

Ris

Qo

3.3K

loons

xii

(K)

SjA7

33

Pork

+

x9

pvt

iT

12K

OV

xl2

eon

i5

RIG

Sosoen

SX

RERZ

LE

Ee

|

2SDS71

(KT,

K2,L1,L2)

NJM

4558D-D

NJM78LI5A

2S$D571(K1,K2,L1,L2)

2SK34(C)

P

Warning

!

5~X14

,

X16,X17

Be

careful

not

to

allow

metallic

dust,

etc.

to

enter

inside

the

unit,

because

-its

motor

is

comprised

of

magnetic

elements.

Notes:

1.

The

voltage

indicated

in[-__]

is

measured

by

a

tester

having

an

internal

impedance

of

33kQ/V!

2.

[==

indicates

signal

path.

3.

This

is

the

standard

circuit

diagram.

The

design

and

contents

are

subject

to

change

without

notice.

%

The

TP4011BP

is

defective,

replace

the

TC4011BP.(C,3)

13.

Packing

Materials

E-22490-007

Packing

Pad

£-22490-007

Packing

Pad

<

“py

eA)

Var

E36997-020

Protector

Sheet

E65754-002

Spacer

Hinge

Pad

£61530-002

£23214-010

Pc

Packing

Case

€61225-001

£66670.001

§°

Spacer

€-22490-007

Packing

Pad

E-22490-007

.

a

Packing

Pad

£61530-002

Motor

Holder

_

Sh

(6

1546-001

rew

Fig.

15

£22949-019

eet

Ass’y

E34725-005

E61225.001

Nylon

Cover

Hinge

Pad

14.

Parts

List

with

Specified

Numbers

for

Designated

Areas

U.S,

Military

Description

USA.

Canada

Europe

UK.

Australia

Market

and

other

countries

TONEARM

ASS'Y

|

ARM-537

‘ARM-537

MP-305S

MP-305S MP-305S MP-305S

PLATTER

COVER

|

£22719-002

|

£22719-002

|

£22719-001

£22719.001

POWER

£03032-310

|

£03032-310

|

£03032-31R

£03032-31R8S

|

£03032-31R

£03032-31S

TRANSFORMER

A\

FUSE

a

PoweRCORD

A\

corpcLame

4S

CORD

STOPPER

C.S.

PLATE

C.

BOARD

Ass'y

A\

FOOT

ASS’Y

FOOT

ASS'Y

VOLTAGE

SELECTOR

MASK

CAP

CONNECTOR

LUG

STRIP

ASSY

CABINET

BOTTOM

BOARD

A

OMF61U1-R80

OMF61U1-R80:

QMFS1A2-R80L

OMF51A2-R80LBS

OMF51A2-R80L.

QMF61U1-R80

QMP1200-200

|

QMP1200-200

|

QMP3900-200

QMP9017-008BS

|

QMP2560-244

QMP7600-250

A37897

A37897BS

A37897 A37897

QHS3876-162

|

QHS3876-162

£65465-001

E£65465-001

TXX-279A,

TXX-279A

TXX-279C TXX-279C TXX-279C

TXX-279B

E35857-003

£35857-003

E35857-005

£35857-005

E35857-005

£35857-008

€35857-006

£35857-006

OSRO0085-001

U

E65395-002

£65395-002

£03830-001

QML1810-054

OML1810-054

QML1810-054

£10455-002

|

£10455-002

|

£10455-003

E£10456-002

£10456-002 £10456-003

€10456-003 £10456-003

E£10456-003

NOTE:

A\SAFETY

PARTS

-16-

No.

2526

15.

Power

Specification

Countries

Line

Voltage

&

Frequency

Power

Consumption

U.S.A.

&

CANADA

AC

120V~,

60Hz

9.5

watt

CONTINENTAL

EUROPE

AC

220V~,

50Hz

aS:

7!

>

-

U.K.

&

AUSTRALIA

AC

240V~,

50Hz

95

U.S.

MILITARY

MARKET

AC

110/120/220/240V~50/60Hz

Selectable

95

”

=

OTHER

AREAS

AC

110/120/220/240V~50/60Hz

Selectable

95

"

VICTOR

COMPANY

OF

JAPAN,

LIMITED,

TOKYO,

JAPAN

Os

ae

JVC L-F66 User manual

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