Technics SL-PJ37A User manual

Table of contents

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ORDER

NO.

MB9004007C2

i

=

Compact

Disc

Player

COMPACT

DIGIT/IL_

p y

OE

SL-PJ37A

Color

(K)...

Black

Type

Area

&

SPECIFICATIONS

@

Audio

@

General

No.

of

channels

2

(left

and

right,

stereo)

Power

supply

For

Great

Britain:

AC

50/60

Hz,

240V

For

others:

AC

50/60

Hz,

220V

Power

consumption

10

W

watines

780

nm

Dimensions

(WxHXD)

360x96x283

mm

Weight

3.6

kg

Specifications

subject

to

change

without

notice.

Weight

and

dimensions

shown

are

approximate.

&

CONTENTS

Page

Page

PCACEMENT

sc

icwoted

aie

ons

ar

he

aca

kG

Asan

eee

2

TERMINAL

GUIDE

OF

IC’S,

:

CLEANING

OF

LENS...................00000-

2

TRANSISTORS

&

DIODES

...........,....0000.4

26

ACCESSORIES.

20.

cc

ew

ete

ee

2

PRINTED

CIRCUIT

BOARDS

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

27

~

30

PRECAUTION

OF

LASER

DIODE

................,

3

WIRING

CONNECTION

DIAGRAM

..............:.

31

©

LOCATION

OF

CONTROLS.................2.05

4,5

REPLACEMENT

PARTSLIST................

32

~

36

CONNECTIONS

...........0.0......0

00000

be

eee

6

EXPLODED

VIEWS-

2.05

aren

See

ess

Save

aca

ha

ba

ae

35

~

37

DISASSEMBLY

INSTRUCTIONS

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

7~10

RESISTORS

&

CAPACITORS

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

0000.

38,

39

MEASUREMENTS

AND

ADJUSTMENTS

..........

11,12

TROUBLESHOOTING

GUIDE............

2.0002

eee

40~

42

TERMINAL

FUNCTIONS

OF

iC’S

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

13

~

16

PACKING

ocd.

ged

cre

ttad

alte

oot

oh

adel

Rerches

daeatd

whe

edie

43

INTERNAL

CONNECTION

OF

FL

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

17

*

TECHCNICAL

INFORMATION

B

POE

DIAGIONE

oie

each

rind

x

ate

daa

Uae

SIRS

1x1?

*This

technical

information

is

located

on

49

~

56

of

th

SCHEMATIC

DIAGRAM

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

20

~

26

PP

Poets

SL-PJ46A

Service

Manual

(Order

No.

AD8902036C2).

Therefore,

refer

to

that

Service

Manuai.

Matsushita

Electric

Industrial

Co.,

Ltd.

Central

P.O.

Box

288,

Osaka

530-91,

Japan

BE

PLACEMENT

Before

placement

Two

transport

security

devices

are

secured

to

prevent

the

optical

pickup

from

damage

during

transport.

Be

sure

to

release

them

before

use.

RELEASED

Insert

them

here

after

removing.

Turn

clockwise

by

90°

to

secure

them.

Soft

cloth

or

similar

material

(to

prevent

scratches)

Note:

When

transporting

the

unit,

be

sure

to

remove

the

compact

disc

from

inside

the

unit.

And

replace

the

transport

security

devices

again

following

the

reverse

order

not

to

damage

the

optical

pickup.

&

CLEANING

OF

LENS

If

the

lens

is

stained

causing

sound

skip

or

operation

failure,

open

the

top

cover

by

pressing

the

open

button,

and

clean

the

lens.

e

To

remove

dust

or

dirt

Blow

the

lens

with

the

biower

provided

in

the

cleaning

kit

to

remove

dust

or

dirt.

Dust

or

dirt

Fingerprint

«

To

remove

fingerprint

lf

the

blower

is

not

enough,

moisten

the

cotton

rod

with

the

lens

cleaner

solution

and

wipe

the

lens

with

it

from

center

of

the

lens

to

outside.

&

ACCESSORIES

@

AC

power

supply

cord........

1

SFDACO5E03

(E,

EG)

SJA188

(EB)

@

L-type

cable...............0.

2

(SJP2257T)

Notes

of

placement

&

This

unit

is

a

precision

instrument.

Be

sure

to

place

it

ona

flat

surface.

B

Avoid

places

such

as

the

following:

Near

any

equipment

or

device

that

generates

strong

magnetism.

®On

any

heat-generating

equipment

or

device,

or

in

any

place

where

the

temperature

is

high

(35°C

or

higher).

*Extremely

cold

places

(5°C

or

below).

eNear

a

tuner

or

TV

(it

may

cause

noise

in

the

broadcast,

or

disturbance

of

the

TV

picture.)

@

When

carrying

or

storing

the

unit,

handle

it

with

care

so

itis

not

subjected

to

any

strong

bumps.

Always

remove

the

disc

before

storing

the

unit

for

any

period

of

time.

@

To

avoid

problems

due

to

vibration.

eDo

not

place

a

book

or

similar

object

under

this

unit.

Do

not

route

the

connection

cables

(of

this

or

other

units)

across

the

operation

panel,

across

the

top,

or

under

the

unit.

Cautions:

©

Do

not

directly

apply

the

cleaner

solution

to

the

lens.

Do

not

apply

too

much

solution

to

the

cotton

rod

or

otherwise

the

solution

will

flow

into

the

player.

Wipe

the

lens

carefully.

Do

not

give

too

much

stress

to

the

lens

or

otherwise

it

may

scratch

the

lens

or

cause

optical

pickup

trouble.

If

the

solution

should

be

too

much

applied,

wipe

the

lens

with

a

dry

cotton

rod.

Lens

cleaning

kit

(Part

No.

:

SZZP1038C)

®

Optical-fiber

cable

.........

1

(SUPD

16)

sf

PRECAUTION

OF

LASER

DIODE

CAUTION:

This

product

utilizes

a

laser

diode

with

the

unit

turned

“on“,

invisible

laser

radiation

is

emitted

from

the

pick

up

lens.

:

Wave

length:

780

nm

Maximum

output

radiation

power

from

pick

up:

100

wW/VDE

Laser

radiation

from

the

pick

up

lens

is

safety

level,

but

be

sure

the

followings:

.

Do

not

disassemble

the

optical

pick

up

unit,

since

radiation

from

exposed

laser

diode

is

dangerous.

.

Do

not

adjust

the

variable

resistor

on

the

pickup

unit.

It

was

already

adjusted.

.

Do

not

look

at

the

focus

lens

using

optical

instruments.

.

Recommend

not

to

look

at

pick

up

lens

for

a

long

time.

kon

—

ACHTUNG:

Dieses

Produkt

enthalt

eine

Laserdiode.

Im

eingeschalteten

Zustand

wird

unsichtbare

Laserstrahlung

von

der

Lasereinheit

abgestrahlt.

Wellenlange:

780

nm

Maximale

Strahlungsleistung

der

Lasereinheit:

100

u.W/VDE

Die

Strahlung

an

der

Lasereinheit

ist

ungefahrlich,

wenn

folgende

Punkte

beachtet

werden:

.

Die

Lasereinheit

nicht

zerlegen,

da

die

Strahlung

an

der

freigelegten

Laserdiode

gefahrlich

ist.

.

Den

werksseitig

justierten

Einstellregler

der

Lasereinheit

nicht

verstellen.

.

Nicht

mit

optischen

Instrumenten

in

die

Fokussierlinse

blicken.

.

Nicht

Gber

langere

Zeit

in

die

Fokussierlinse

blicken.

BOM

+

ADVARSEL:

|

dette

a

apparat

anvendes

laser.

CONTROL

OIG

ITAL

OU

FEI

OPTICAL

A

SQWD7

|

BLASER

PRODUC

‘sowo?

Obs:

Apparaten

innehaller

laser

Komponent

av

héger

laserklass

an

klass

1.

RQLS0022

ADVARSEL:

USYNLIG

LASERSTRALING

VED

ABNING,

NAR

SIKKERHEDSAF-

BRYDERE

ER

UDE

AF

FUNKTION.

UNDGA

UDSATTELSE

FOR

STRALING.

Control

section

@P

Power

switch

(POWER

EOFF

=

ON)

@

Disc

holder

3)

Repeat

button

(@>

REPEAT)

€@}

Skip

buttons

(<<

SKIP

>!)

These

buttons

can

be

used

to

skip

by

track

in

the

forward

or

reverse

direction.

@

Search

buttons

(<<

SEARCH

PP)

These

buttons

can

be

used

to

move

rapidly

forward

or

backward

on

the

disc

during

play.

The

search

speed

is

slow

when

the

button

is

pressed

at

first

and

becomes

faster

if

the

button

is

pressed

and

held

continuously.

G

Numeric

buttons

(+10,

0,

1~9)

These

buttons

can

be

used

to

select

the

track

numbers

and

the

recording

time.

&

Buttons

for

program

function

eProgrammed-play

button

(PROGRAM)

Pressing

this

button

initiates

the

programmed

play

mode.

You

can

then

enter

specific

tracks

using

the

numeric

buttons.

e

Clear

button

(CLEAR)

Each

pressing

this

button

makes

one

track

cleared

from

the

programmed

sequence.

©

Buttons

for

CD

edit

function

(CD

EDIT)

©

Edit

tape

length

button

(EDIT

TAPE

LENGTH)

When

compact

discs

are

to

be

recorded

to

tape,

this

button

can

be

used

to

calculate

the

number

of

tracks

that

can

be

recorded

on

each

side

of

the

tape,

depending

on

the

length

of

the

cassette

tape

used,

so

that

as

little

tape

as

possible

is

wasted.

®Tape-side

select

button

(TAPE

SIDE

A/B)

When

recording

compact

discs

to

tape,

this

button

can

be

used

to

check

the

number

of

tracks

and

amount

of

tape

left

over

for

side

A

or

B.

©

Time

mode

select

button

(TIME

MODE)

Use

this

button

to

select

the

desired

time

display

mode.

@)

Auto

cue

button

(AUTO

CUE)

Pressing

this

button

causes

the

unit

to

skip

automatically

to

the

beginning

of

the

next

track

on

the

disc

and

switch

to

the

play

standby

mode.

®

Play

button

(

[>>

PLAY)

@®

Pause

button

(If

PAUSE)

®

Stop

button

(K

STOP)

This

button

can

be

used

to

stop

the

disc

play,

as

well

as

to

cancel

the

various

play

modes.

@®

Disc

holder

open/close

button

(4

OPEN/CLOSE)

—

It

t_lacue

TRACK

NO.

INDEX

MIN

sEC

@D-—

Indicators

section

15)

Programmed-play

indicator

( )

&

“Over”

mark

(5>)

This

indicator

lights

if

the

total

number

of

tracks

on

the

disc

is

©

Track

number

display

(TRACK)

17

or

more.

®

Auto

cue

indicator

(A.

CUE)

@)

Track

number

indicator

(1-6)

®

index/program

number

display

(NO./INDEX)

€

Tape

side

indicator

(A/B)

®

Time

display

(MIN/SEC)

@

Compact

disc

edit

indicator

(EDIT)

@

Pause

indicator

(E1)

&

Play

indicator

((>>)

€)

Repeut

indicator

(@>)

if

this

unit

is

connected

with

Technics

Hi-Fi

component

system

whose

remote

control

transmitter

has

[>

/4§]

button

for

compact

disc

operation,

the

pause

function

may

not

be

activated

by

pressing

the[>/at]

button

during

compact

disc

play.

CONNECTIONS

Notes:

Turn

power

off

on

all

components

before

making

connections.

@See

the

operating

instructions

of

the

tuner

for

details.

To

the

‘DIGITAL

INPUT”

terminal

of

the

amplifier

[1]

Optical-fiber

cable

(inctuded)

This

cable

can

be

used

only

with

an

amplifier

having

the

“DIGITAL

INPUT”

terminal.

A

dust-protection

cap

is

inserted

in

the

“DIGITAL

OUT/OPTICAL"

terminal

of

this

unit.

Remove

this

cap

only

when

a

connection

is

to

be

made

to

this

terminal.

CAUTION

When

using

the

optical-fiber

cable,

please

keep

the

following

points

in

mind:

1.

The

maximum

length

of

optical-fiber

cable

to

be

used

with

this

unit

is

3

m

(approx.

10

ft.).

2.

Always

make

sure

the

plug

is

fully

inserted.

If

the

plug

is

not

inserted

all

the

way,

an

imperfect

connection

will

result.

3.

The

optical-fiber

cable

must

never

be

bent

or

coiled

tightly.

Doing

so

will

permanently

damage

the

optical-fiber

in

the

cable

and,

therefore,

prevent

proper

data

transmission.

If

the

cable

must

be

coiled

(for

storage,

etc.),

the

diameter

of

the

loop

should

be

at

least

15

cm

(approx.

6

inches).

4.

Handle

the

optical-fiber

cable’s

plug

very

carefully.

Keep

the

plug

free

from

dust

or

damage.

Dust

can

be

removed

by

wiping

the

plug

with

a

soft

cloth.

Do

not

use

any

cleaners

or

solvents

to

clean

the

plug.

To

the

“AC

OUTLET”

&

-

of

the

amplifier

~

or

the

graphic

equalizer

or

the

household

AC

outlet

To

the

‘REMOTE

OUT”

terminal

of

the

graphic

equalizer

or

the

tuner

To

the

“CONTROL”

terminal

of

the

cassette

deck

[2]

L-type

cable

(included)

This

cable

can

be

used

only

with

a

Technics

graphic

equalizer

or

a

tuner

having

the

appropriate

“REMOTE

OUT"

terminal.

L-type

cable

(included)

This

cable

can

be

used

only

with

a

Technics

cassette

deck

having

the

appropriate

“CONTROL”

terminal.

[4]

“UNSWITCHED”

outlet

Power

is

always

available,

regardless

of

power

switch.

This

outlet

is

exclusively

for

the

connection

of

other

audio

equipment,

such

as

a

cassette

deck,

etc.

Be

sure

the

power

consumption

does

not

exceed

the

wattage

specified

near

the

AC

outlet.

AC

power

supply

cord

(included)

Note:

The

configuration

cf

the

AC

outlet

and

AC

power

supply

cord

differs

according

to

area.

m

DISASSEMBLY

INSTRUCTIONS

Warning:

This

product

uses

a

laser

diode.

Refer

to

caution

statements

on

page

3.

ACHTUNG:

¢

Die

lasereinheit

nicht

zeriegen.

e

Die

lasereinheit

darf

nur

gegen

eine

vom

hersteller

spezifizierte

einheit

ausgetauscht

werden.

*

This

CD

player

is

equipped

with

FPC

board,

so

handle

them

with

care

during

disassembly

and

reassembly.

Removal

of

the

ornament

of

disc

holder

and

the

front

panel

2

Procedure!

A.

Ornament

of

disc

holder

1-2

1.

Push

the

disc

holder

slowly

in

the

direction

of

the

arrow.

2.

Release

the

1

claw

and

the

ornament

in

the

direction

of

the

arrow

(@)

).

Removal

of

the

cabinet

1.

Remove

the

5

screws

(@

~

@).

Cabinet

B.

Front

panel

1.

Remove

the

1

screw

(@

).

2.

Slightly

pull

out

the

front

panel

in

the

direction

of

the

arrow

({

),

3.

Remove

the

front

panel

in

the

direction

of

the

arrow

{

©)).

4

\

G

Front

Panel

Removal

of

the

operation

P.C.B.

Procedure

1+2-—3

1.

Remove

the

4

screws

(Q@~

@).

2.

Release

the

8

claws.

Operation

PC.B.

_

Remove

the

4

screws

(@~@G).

|

How

to

check

the

main

P.C.B.

2.

Remove

the

4

connectors

(CN11,

CN12,

CN401,

CN431).

3.

Lift

the

main

P.C.B.

off

the

retention

1.

posts

on

the

chassis.

4.

Remove

the

main

P.C.B.

in

the

direction

2.

of

the

arrow.

Bere:

Removal

of

the

disc

lid

and

holder

Procedure

1,

Remove

the

spring.

1-5

2.

Move

the

disc

lid

in

the

direction

of

the

/

arrow

(@)and

pu!l

out

this

in

the

direction

of

the

arrow

(®).

When

checking

the

soldered

surface

of

the

main

P_C.B.

and

replacing

the

parts,

do

as

shown

below.

Connect

the

main

P.C.B.

ground

terminal

(LINE

OUT

terminal)

to

the

chassis

with

a

lead

wire.

Connect

the

operation

P.C.B.

ground

terminal

to

the

chassis

with

a

lead

wire.

Lead

Wire

3.

Pull

out

the

holder

in

the

direction

of

the

arrow

(@).

a,

v2

Holder

qe

he

Holder

&

Ring

b.——~

Small

Ball

Holder

Caution:

Be

sure

to

handle

the

small

bal

carefully.

4.

Remove

the

ring

in

the

direction

of

the

arrow

we

obit

Ref.

No.

Removal

of

the

disc

holder

and

power|

Ref.

No.

Removal

of

the

loading

unit

6

switch

rod

7

Procedure

1—-2—5-6

A.

Disc

holder

1.

Pull

the

disc

holder

siowly

in

the

direction

of

the

arrow

until

the

disc

tray

comes

up.

2.

Pull

the

disc

holder

until

it

stops.

3.

Push

the

bracket

of

tray

SW

($1001)

in

the

direction

of

the

arrow.

Pull

out

the

disc

holder

further

to

remove

it.

.

Power

switch

rod

_

Set

the

power

switch

in

the

“OFF”

position.

.

Remove

the

power

switch

rod

by

using

a

screwdriver.

Now

A

Bracket

of

tray

SW(SIOO1)

Screwdriver

|

Power

Switch

||

Rod

Dise

Tray

pos

Checking

of

the

servo

P.C.B.

Procedure

;

+

2-5

eWhen

checking

the

soldered

surface

—

J—

of

the

servo

P.C.B.

and

replacing

the

parts,

do

as

shown

below.

Note:

insert

the

loading

unit

into

the

tabs

of

the

front

panel.

(Fixed

loading

unit)

Secure

the

optical

pickup

assembly

with

a

clip.

(Otherwise

the

clamper

will

interfere

with

the

disc,

restricting

turntable

rotation.)

Servo

PC.B.

Front

Panel

Procedure

1+2+5+6-7

1.

Remove

the

3

screws

(@~

@).

2.

Remove

the

3

connectors

(CN12,

CN401,

CN431).

ag

(To

play

a

disc)

1.

Place

the

test

disc.

2.

Reinstall

the

disc

lid

to

the

loading

unit.

3.

Turn

“ON”

the

power

switch

of

the

player.

4.

Push

the

bracket

of

tray

SW

($1001)

in

the

direction

of

the

arrow

and

release

it.

Note:

|f

the

test

disc

fails

to

rotate,

press

the

tray

switch

again.

Test

Disc

\

Tray

SW

(SI001)

Loading

Unit

Procedure

1-2-5

-+6-7-9

Procedure

4—-2--5

6-10

Procedure

4-256

—>4{2

1.

Remove

the

4

screws

|

@~

9).

2.

Remove

the

FPC

board

(CN101)

3.

Remove

the

1

connector

(CN102)

Caution

:

Drive

Belt

To

prevent

the

breakdown

of

the

laser

diode,

antistatic

shorting

pin

is

inserted

into

the

FPC

board.

4.

Remove

the

drive

belt.

2.

Release

the

clamping

spring.

3.

Unsolder

the

2

terminals

of

the

lead

wire

of

the

loading

motor.

1.

Remove

the

5

screws

(@9~®).

2.

Remove

the

1

connector

(CN11).

3.

Unsolder

the

2

terminals.

from

the

optical

pickup.

of

the

turntable

motor.

£40

Procedure

4--2-—

5-6

—-7-

9-11

screws

(@

~

@).

the

optical

pickup.

1.

Remove

the

4

2.

Remove

the

FPC

board

from

Optical

Pickup

Unit

/

[-

Optical

Pickup