Sony CDP-S37 User manual

SERVICE

MANUAL

SPECIFICATIONS

Compact

disc

player

|_cpp.s207_

|

CDP-S37

|

Frequency

response

|

5

Hz—

20

kHz

(+92

dB)

|

Signal

to

noise

ratio

|

More

than

95

dB

|

Dynamic

range

|

More

than

90

dB

‘Harmonic

distortion

|

Less

than

0.05%

(at

1

kHz)

-

‘Channel

separation

=

More

than

90

dB

i

Outputs

|

cpp.s207

|

CDP.S37_

t

T

1

|

LINE

OUT

(FIXED)

|

Output

level

2

V(at

50

kilohms)

|

:

(phono

jacks)

jboad

impedance

over

10

kilohms

|

i

:

ay

i

Output

level

|

HEADPHONES

mad

mW.

(stereo

phone

jack);

_

|

Load

impedance

|

32

ohms

General

|

cpps207

|

CDP.S37

|

Power

'

AEP

model:

i

|

requirements

(CDP-S207

/CDP-S37)

i

H

220V

AC,

50/60Hz

i

}

UK

model:

i

(CDP-S207)

!

i

240V

AC,

50/60Hz

:

US

model:

|

(CDP-S207)

|

120V

AC,

60Hz

i

{

Canadian

model:

|

i

|

(COP-S207

/CDP-S37)

|

120V

AC,

60Hz

E

model:

(CDP-S37)

110~120

of

220~240V

AC

adjustable,

50/60Hz

1

|

Power

|

10W

|

consumption

:

enue

cchudinge

225

x

65

x

230

mm

(wihid)

t

:

yA

1

|

projections)

(8°

x

4°

x

9%

inches)

|

Weight

(approx.)

2.0

kg

(4

Ib

7

02)

MICROFILM

Canadian

Model

AEP

Model

UK

Model

E

Model

CDP-S37

US

Model

Canadian

Model

AEP

Model

UK

Model

CDP-S207

New

KSS-211A

BU-5F

Model

Name

Using

Similar

Mechanism

CD

Transport

Mechanism

Type

Optical

Pick-Up

Block

Type

Supplied

accessories

Ing

cone,

}

H

|

CDP-S207

:

CDP.S37_

|

oS

————

oe

Audio

cord

|

I

:

i@

phono

plugs

— 2

phono

plugs)

|

!

Connecting

cord

|

1

u

i

Design

and

specifications

subject

to

change

without

notice.

SAFETY-RELATED

COMPONENT

WARNING!!

COMPONENTS

IDENTIFIED

BY

MARK

A

OR

DOTTED

LINE

WITH

MARK

A

ON

THE

SCHEMATIC

DIAGRAMS

AND

IN

THE

PARTS

LIST

ARE

CRITICAL

TO

SAFE

OPERATION.

REPLACE

THESE

COMPONENTS

WITH

SONY

PARTS

WHOSE

PART

NUMBERS

APPEAR

AS

SHOWN

IN

THIS

MANUAL

OR

IN

SUPPLEMENTS

PUB-

LISHED

BY

SONY.

ATTENTION

AU

COMPOSANT

AYANT

RAPPORT

A

LA

SECURITE!

LES

COMPOSANTS

IDENTIFIES

PAR

UNE

MARQUE

/\

SUR

LES

DIAGRAMMES

SCHEMATIQUES

ET

LA

LISTE

DES

PIECES

SONT

CRITIQUES

POUR

LA

SECURITE

DE

FONCTIONNEMENT.

NE

REMPLACER

CES

COM-

POSANTS

QUE

PAR

DES

PIECES

SONY

DONT

LES

NUMEROS

SONT

DONNES

DANS

CE

MANUEL

OU

DANS

LES

SUPPLEMENTS

PUBLIES

PAR

SONY.

COMPACT

DISC

PLAYER

ONY.

CDP-S37/S207

TABLE

OF

COTENTS

Section

Title

SECTION1

GENERAL

1-1.

Location

of

Controls

.................00..

0.

cee

SECTION2

ELECTRICAL

ADJUSTMENTS

SECTION3

DIAGRAMS

3-1.

Semiconductor

Lead

Layouts

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

3-2.

Waveforms

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

0.

cece

eee

ees

3-3.

Printed

Wiring

Board

3-4.

Schematic

Diagram

SAFETY

CHECK-OUT

After

correcting

the

original

service

problem,

perform

the

following

safety

check

before

releasing

the

set

to

the

customer:

Check

the

antenna

terminals,

metal

trim,

‘‘metallized”’

knobs,

screws,

and

all

other

exposed

metal

parts

for

AC

leakage.

Check

leakage

as

described

below.

LEAKAGE

TEST

The

AC

leakage

from

any

exposed

metal

part

to

earth

ground

and

from

all

exposed

metal

parts

to

any

exposed

metal

part

having

a

return

to

chassis,

must

not

exceed

0.5mA

(500

microampers).

Leakage

current

can

be

measured

by

any

one

of

three

methods.

1.

A

commercial

leakage

tester,

such

as

the

Simpson

229

or

RCA

WT-S40A.

Follow

the

manufacturers’

instructions

to

use

these

instru-

ments.

tu

A

battery-operated

AC

milliammeter.

The

Data

Precision

245

digital

multimeter

is

suitable

for

this

job.

ee

ee en

en

ee

en

er

ee

Page

Section

.

Title

3-5.

Circuit

Description

.....................000.0.

3

3-6.

IC

Block

Diagram

................0..0000

eee

4

SECTION4

EXPLODED

VIEWS

4-1.

Cabinet

Section

4-2.

CDM13

Section

6

4-3.

BU-5F

Section

........0.

0000.0

3.

Measuring

the

voltage

drop

across

a

resistor

by

means

of

a

VOM

or

battery-operated

AC

volt-

The

“‘limit”

indication

is

0.75

V,

so

analog

meters

must

have

an

accurate

low-

voltage

scale.

The

Simpson

250

and

Sanwa

SH-63Trd

are

examples

of

a

passive

VOM

that

is

suitable.

Nearly

all

battery

operated

digital

multimeters

that

have

a

2V

AC

range

are

suitable.

(See

Fig.

Aj

meter.

To

Exposed

Metal

Parts

on

Set

{

AC

voltmeter

(0.75

V)

cn

Earth

Ground

Fig.

A.

Using

an

AC

voltmeter

to

check

AC

leakage.

ne

SERVICING

NOTE

NOTES

ON

HANDLING

THE

OPTICAL

PICK-

UP

BLOCK

OR

BASE

UNIT

The

laser

diode

in

the

optical

pick-up

block

may

suffer

electrostatic

breakdown

because

of

the

poten-

tial

difference

generated

by

the

charged

electrostatic

load,

etc.

on

clothing

and

the

human

body.

During

repair,

pay

attention

to

electrostatic

break-

down

and

also

use

the

procedure

in

the

printed

matter

which

is

included

in

the

repair

parts.

The

flexible

board

is

easily

damaged

and

should

be

handled

with

care.

CAUTION

Use

of

controls

or

adjustments

or

performance

of

procedures

other

than

those

specified

herein

may

result

in

hazardous

radiation

exposure.

NOTES

ON

LASER

DIODE

EMISSION

CHECK

The

laser

beam

on

this

model

is

concentrated

so

as

to

be

focused

on

the

disc

reflective

surface

by

the

objective

lens

in

the

optical

pick-up

block.

Therefore,

when

check-

ing

the

laser

diode

emission,

observe

from

more

than

30

cm

away

from

the

objective

lens.

—2—

MODEL

IDENTIFICATION

(Specfication

Label)

CDP-S37

CDP-S207

SONY.

—

move.

no.

COMPACT

DISC

PLAYER

WML

US

model:

AC

120V

60Hz

10W

Canadian

model:

AC

120V

60Hz

10W

AEP

model:

AC

220V~50/60Hz

UK

model:

AC

240V~50/60Hz

E

model:

AC

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

10W

SECTION

1

GENERAL

1-1.

LOCATION

OF

CONTROLS

12

(Li)

[id

POWER

switch

Disc

compartment

PROGRAM

button

SHUFFLE

button

&

(open/close)

button

mil

(play/pause)

button

™

(stop)

button

Ke

Pt

(AMS

)

button

<4

>

(manual

search)

buttons

REPEAT

button

CONTINUE

button

TIME

button

Display

window

HEADPHONES

jack

(only

for

S37)

PHONE

LEVEL

(headphone

Level)

control

(only

for

S37)

Bl

oi

Bi wl

NE}

BSE

aw@ag

I

ey

ed

SECTION

2

ELECTRICAL

ADJUSTMENTS

Perform

adjustments

is

the

order

given.

Use

YEDS-18

(Part

No:

3-702-101-01)

disc

unless

other-

wise

indicated.

Use

the

oscilloscpe

with

more

than

10

MOQ

impedance.

RF

PLL

Frequency

Adjustment/Lock

Frequency

Check

Procedure:

frequency

counter

main

board

TP

(PCK)

TP

(AG)

<r

D

>+

o_O

-

1.

Connect

test

point

TP

(ASY)

to

ground

with

lead

wire.

2.

Turn

POWER

switch

on.

3.

Connect

the

frequency

counter

to

test

point

TP

(PCK)

and

TP

(AG).

4.

Adjust

RV4

so

that

the

reading

on

the

frequency

counter

is

4.3218MHz+30kHz....

(RF

PLL

frequency

adjust-

ment).

5.

Remove

lead

wire

connecting

TP

(ASY)

to

ground.

6.

Put

disc

(YEDS-18)

in

and

press

>

button.

7.

Confirm

that

the

reading

on

frequency

counter

is

4,3218MHz....

(Lock

frequency

check).

E-F

Balance

Adjustment

This

adjustment

should

be

made

when

replacing

TOP

(T-

type

Optical

Pick-up).

Procedure:

,

oscilloscope

(OC

range)

main

board

C)

TP

(TEO)

Om———-©

+

TP

(AG)

ee

he

Connect

test

point

TP

(ADJ)

and

test

point

TP

(TEI)

to

ground

with

lead

wire.

2.

Connect

oscilloscope

to

test

point

TP

(TEO)

and

TP

(AG).

3.

Turn

POWER

switch

on.

4.

Put

disc

(YEDS-18)

in

and

press

>

button.

5.

Adjust

RV1

so

that

the

traverse

waveform

is

symmetrical

above

and

belew.

6.

After

adjustment,

remove

the

lead

wire

connected

in

step5.

fon

S

Easy

to

see

sweep

time

is

lodg.

A

ov

>

ov

B B

A=B A=B

(Within

5%}

(Within

5%)

Focus

Bias

Adjustment

This

adjustment

should

be

made

when

replacing

TOP

(Ttype

Optical

Pick-up).

Procedure:

oscilloscope

(DC

range)

main

board

ae

oO)

TP

(RF)

O«———O

+

TP

(RFG)9«—o

=

EN

Connect

oscilloscope

to

test

point

TP

(RF)

and

TP

(RFG).

Turn

POWER

switch

on.

Put

disc

(YEDS-18)

in

and

press

>

button.

Adjust

RV102

for

an

optimum

waveform

eye

pattern

or

so

that

the

peak

is

maximum.

Optimum

eye

pattern

means

that

shape

“©”

can

be

clearly

distinguished

at

the

center

of

the

waveform.

RF

signal

waveform

S/

YY}

WAAAY

Wi

YY)

\X

WW)

AAA

Ce

NY

A=1.3+0.3

(Vp-p)

Adjustment

Location:

main

board

RF

PLL

FREQUENCY

ADJ/

LOCK

FREQUENCY

CHECK

—_—_—_—__—_.

PCK,

ASY,

RV4,

AG

j

i

/

|

:

ADJ,

AG,

TEI,

TEO,

RVI

Ss

E-F

BALANCE

ADJ

FOCUS

BIAS

ADJ

AG,

RV2,

FEI,

FEO

\

IC3

2

REFERENCE

Focus/Tracking

Gain

Adjustments

A

frequency

responce

analyzer

is

necessary

in

order

to

perform

this

adjustment

exactly.

However,

this

gain

has

a

margin,

so

even

if

it

is

slightly

off,

there

is

no

problem.

Therefore,

do

not

perform

this

adjust-

ment.

Focus/tracking

gain

determines

the

pick-up

follow

up

(ver-

tical

and

horizontal)

relative

to

mechanical

noise

and

shock

when

the

2-axis

device

operate.

However,

as

these

reciprocate,

the

adjustment

is

at

the

point

where

both

are

satisfied.

@

When

gain

is

raised,

the

noise

when

the

2-axis

device

oper-

ates

increases.

@When

gain

is

lowered,

mechanical

shock

and

skipping

occurs

more

easily.

@

When

gain

adjustment

is

off,

the

symptoms

below

appear.

symptoms

Tracking

@

The

time

until

music

starts

becomes

longer

fori

~>

or

automatic

selection.

(Kid,

DDI

buttons

pressed.)(Normal-

ly

takes

about

1

seconds.)

low

or

high

@Music

does

not

start

and

disc

continues

to

rotate

for

@—>>

or

automatic

selec-

tion.

(Kil,

DDI

buttons

pressed.)

@Disc

table

opens

shortly

after

>>.

low

or

high

@Sound

is

interrupted

during

PLAY

or

time

counter

dis-

play

stops

progressing.

@More

noise

during

2-axis

device

operation.

The

following

is

a

simple

adjustment

method.

—Primary

Adjustment—

Note:

Since

exact

adjustment

cannot

be

performed,

remem-

ber

the

positions

of

the

controls

before

performing

the

adjustment.

If

the

position

after

the

primary

adjust-

ment

are

only

a

little

different,

return

the

controls

to

the

original

position.

Procedure:

oscilloscope

(DC

range)

main

board

C)

TP

(FEO)

So

+

t

_

TP

(TEO)

Omm-

-7

|

1.

Keep

the

set

horizontal.

If

the

set

is

not

horizontal,

this

adjustment

cannot

be

|

performed

due

to

the

gravity

against

the

2-axis

device.

2.

Insert

disc

(YEDS-18:

Fifth

Selection)

and

press

>

but-

ton.

3.

Connect

oscilloscope

to

main

board

TP

(FEO).

4.

Adjust

RV3

so

that

the

waveform

is

as

shown

is

the

figure

below.

(focus

gain

adjustment)

5.

Connect

oscilloscope

to

main

board

TP

(TEO).

6.

Adjust

RV5

so

that

the

waveform

is

as

shown

is

the

figure

below.

(tracking

gain

adjustment)

VOLT

/DIV

TIME

/DIV

ov

e@

Incorrent

Examples

(DC

level

changes

more

than

on

adjust-

ed

waveform)

low

focus

gain

OV

high

focus

gain

TIME

/DIV

:

75m

ov

VOLT/DIV

:

TIME

/DIV

:

2mS

:

100mV

:

2msS

100mV

:

100mv

250mV

VOLT/DIV

:

100mV

2ms

100mV

v

TIME

/DIV

ov

e

Incorrect

Examples

(fundamental

wave

appears)

low

tracking

gain

TIME

/DIV

ov

high

tracking

gain

higher

fundamental

wave

than

for

low

gain)

ov

Adjustment

Location

:

main

board

TRACKING

GAIN

ADJ

RV5,

TEO

VOLT/DIV

:

VOLT

/DIV

:

VOLT/DIV

:

TIME/DIV

:

SECTION

3

DIAGRAM

3-1.

SEMICONDUTOR

LEAD

LAYOUTS

1v

:

2ms

2SK381-C

RD6.8FS-B1

1V

:

2ms

saincge

K

1V

2ms

10E2

i

athoge

a

\

anode

ot

FOCUS

GAIN

FEO

ADJ

ot

be

)

vice.

-

but-

s

the

s

the

T/DIV:

100mV

©/DIV:

2mS

—

100mv

~

OV

djust-

r/DIV

:

100mV

/DIV:

2mS

~

250mV

-

OV

/DIV:

100mvV

/DIV:

2mS

-

100mV

-

75mV

-

OV

VOLT/DIV:

1V

TIME

/DIV

:

2mS

e

Incorrect

Examples

(fundamental

wave

appears)

low

tracking

gain

VOLT/DIV:

IV

TIME/DIV

:

2mS

high

tracking

gain

higher

fundamental

wave

than

for

low

gain)

VOLT/DIV:

IV

TIME

/DIV

;

2mS

Adjustment

Location:

main

board

TRACKING

GAIN

—_——

RV5,

TEO

RV3

\

FOCUS

GAIN

FEO

ADJ

3

1.

SECTION

3

DIAGRAM

SEMICONDUTOR

LEAD

LAYOUTS

2SK381-C

RD6.8FS-B1

3-2.

WAVEFORMS

4

osc

5

MDS

9

FE

250n

SEC

PLAY

«

PLAY:

|

he

Moo

OY

5.6Vp"p

Shere

|

APPROX.

200m

p-p

@

MOP

@

LRCK

10

TE

PLAY:

550

ySEC

;

-—

22ySEC

PLAY:

|

2

Ep

mot

ili

lava

lin

4

:

ae

5.3Vp-p

LAT

ONT

Oa

ov

este

APPROX.

GOOmVp-p

>

vco

1

7

C20

V1

RF

PLAY:

480nSEC

CAKAK

KAS

sors

XY

95

nSEC

saan

|

+0000.09

eee

i

6Vp-p

WN}

SVp-p

.

an

I

we

|

tN,

lI

Vp-p

@4

vco0

8

BCK

12

XTAL

P|

fe

240

nSEC

—

59n

SEC

4.3Vp-p

26mVp-

at

EP

5.6Vp-p

3-3.

PRINTED

WIRING

BOARD

e

Refer

to

page

6

for

Semiconductor

Lead

Layouts.

1

2

3

5

6

7

8

a

aa

e

Semiconductor

Location

PCE

HEE

CNJ7

SYSTEM

CONTROL

IN

=2

[Rh

PNI

LINE

OUT

C

“I

(L}

{SL/SP

MOTOR

BOARD]

OPTICAL

PICK

UP

BLOCK

(KSS-2IIA)

$002

LOABING

|

QUT

SW

2

E

Diy

POW

F

BOA

-

—\

<<

5

G

3

t—

[DISPLAY

BOARD]

FL301

FLUORESCENT

INDICATOR

TUBE

a

i

e

:

Parts

extracted

from

the

component

side.

ri]

[—

a0

iat

a

IF

e

:

parts

mounted

on

the

conductor

side.

PGM

ns

=

Pll

bs

SHUFFLE

SPACE

FADE

REPEAT

!

A-B

EDIT

e

=

1

Pattern

on

the

side

which

is

seen.

|

e

:

Pattern

of

the

rear

side.

Ci

2

95678

9

ON 21

4

17

1819

20

21

22

2324

25

27

28

'

Se

=

J

PRINTED

WIRING

BOARD

e

Refer

to

page

6

for

Semiconductor

Lead

Layouts.

1

2

3

4

[|

5

|

6

7

8 9

(0

ne

ae

eae

3

14

15

q

2

ee

Sn

~)

[TRANSFORMER

BOARD]

[MAIN

BOARD}

US,CANADIAN

MODEL

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Sony CDP-S37 User manual

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