Sony Cdp-c301m User manual

у

SERVICE

MANUAL

US

Model

CDP-C301M

AEP

Model

UK

Model

=o

CDP-C301M/C305M

ана

|

E

Model

;

CDP-C305M

PPE"

Australian

Model

CDP-C305M

Photo:

CDP-C305M

Model

Name

Using

Similar

Mechanism

|

CDP-C500M

SPECIFICATIONS

|

CDP-O305M

CDP-C301M

Compact

disc

digital

audio

system

Laser

Semiconductor

laser

(A

=

780

nm)

Laser

output

Emission

duration:

continuous

-

Frequency

Max.

44.6

uW*

response

*

This

output

is

the

value

measured

at

a

distance

of

about

200

mm

from

the

objective

lens

surface

on

the

Optical

Pick-up

Block.

2

Hz

-

20

kHz

(+?

dB)

7742

Signal

to

noise

More

than

93

dB

ratio

Harmonic

Less

than

0.05%

(1

kHz)

distortion

Channel

separation

Wow

and

flutter

|

Below

measurable

limit

Outputs

Output

level

2

V

(at

50

kilohms)

LINE

OUT

Load

impedance

over

10

kilohms

(phono

jacks)

HEADPHONES

|

Output

level

(stereo

phone

0-10

mW

jack)

(variable)

(at

32

ohms)

More

than

90

dB

(1

kHz)

General

Power

US

model:

requirements

120

V

AC,

60

Hz

UK,

Australian

model:

240

V

AC,

50/60

Hz

AEP

model:

220

V

AC,

50/60

Hz

E

model:

110

—

120

or

220

—

240

V

AC

adjustable,

50/60

Hz

Power

consumption

Dimensions

Approx.

355

x

110

x

385

mm

(w/h/d)

(not

including

(14

x

4Ys

x

15%

inches)

projecting

parts

and

controls)

Weight

Approx.

5.0

kg

(11

Ibs)

Supplied

accessories

|||

CDP-C308M CDP-C301M

(phono

plug

x

2

«>

phono

plug

x

2)

Audio

signal

1

connecting

cord

(for

other

countries

and

EC

only)

AC

plug

adaptor

Remote

commander

R6

(size

AA)

batteries

Design

and

specifications

subject

to

change

without

notice.

COMPACT

DISC

PLAYER

SONY.

CDP-C301M/C305M

x

TABLE

OF

CONTENTS

Section

Title

Page

Specifications

e e e

oe

ө

ө ө

ө

ө е ө ө ө

э

ө

е ө

ө ө

ө э

е

ө ө

ә

ө

ө э

ө

ө ө

ө

1

Safety

Check-out

+ +

+

о

о з ө ө ө ө е

ө

э ө ө ө

ө

ө э

ө ө ө ө о ө ө

ә

ө

э

ө

2.

1.

SERVICING

NOTES

Front

Panel

Assembly

Кетоуіпе

·

····

3

Notes

on

Hnandling

the

Optical

Pick-up

Block

or

Base

Unit

оета

ааа

ала

әта

еа

ааа

3

Notes

on

Laser

Diode

Emission

Check

::::

3

Laser

Diode

and

Focus

Search

Operation

Check

+

«э

о ө

ө

а э ө ө

ө

ө ө

ө

э ө

ө

э

е э

ө ө

ө +

3

Notes

on

the

Transit

Key

e e

e

o

oe

o o ө

ө

е ө ө

ө

э

э ө

ө

3

Protection

of

Eyes

from

Laser

Beam

during

Servicing

@ e

*

ө e ө

ө ө ө ө

ө

e€

е

e

ç

o

€*

*

* *

* * * о ө

ө

4

2.

СЕМЕНА."

еа

ver

We

sa

os

5

3.

ELECTRICAL

ADJUSTMENTS

6

4.

DIAGRAMS

4-].

Block

Diagram

*

e€

9

e€

e ө

q 9

э ө 9

€

?

9

*

ө ө ө

ө

*

ө

* * *

€

8

4-2.

Printed

Wiring

Boards

«-«::::

666

11

4-3.

Schematic

Diagram

«+оо

о

ө

е

ө

е

s

s o

oo

о

«е

ө

ә

ө

о

е

15

5.

EXPLODED

VIEWS

·....:...............

19

6.

ELECTRICAL

PARTS

LIST

.----------::

23

MODEL

IDENTIFICATION

—

Specification

Labels

—

CDP-C301M

CDP-C305M

SON

Ye

COMPACT

DISC

PLAYER

MODEL

NO.

£

SERIAL

No.

y

MADE

IN

JAPAN

MADE

IN

FRANCE

US

model:

AC

120

V

—60

Hz

10W

AEP

model:

AC

220

V

—50/60

Hz

10

W

UK

model:

AC

240

V

~50/60

Hz

E

model:

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.

AC

110

—

120,

220

—

240

V

—50/60

Hz

10W

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-540A.

Follow

the

manufacturers’

instructions

to

use

these

instru-

ments.

tƏ

A

battery-operated

AC

milliammeter.

The

Data

Precision

245

digital

multimeter

is

suitable

for

this

job.

3.

Measuring

the

voltage

drop

across

a

resistor

by

means

of

a

VOM

or

battery-operated

AC

volt-

meter.

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.

A)

To

Exposed

Metal

Parts

on

Set

AC

voltmeter

Ee

|

(0.75

V)

=

Earth

Ground

Fig.

A.

Using

an

AC

voltmeter

to

check

AC

leakage.

ATTENTION

AU

COMPOSANT

AYANT

RAPPORT

A

LA

SECURITE!

LES

COMPOSANTS

IDENTIFIÉS

PAR

UNE

MARQUE

Å

SUR

LES

DIAGRAMMES

SCHÉMATIQUES

ET

LA

LISTE

DES

PIÈCES

SONT

CRITIQUES

POUR

LA

SÉCURITÉ

DE

FONCTIONNEMENT.

NE

REMPLACER

CES

COM-

POSANTS

QUE

PAR

DES

PIÈCES

SONY

DONT

LES

NUMÉROS

SONT

DONNÉS

DANS

CE

MANUEL

OU

DANS

LES

SUPPLÉMENTS

PUBLIÉS

PAR

SONY.

|

CDP-C301M/C305M

SECTION

1

SERVICING

NOTES

Front

Panel

Assembly

Removing

Note:

Follow

the

disassembly

procedure

in

the

numerical

order

given.

When

the

power

can

be

supplied

@

Unscrew

6

stopper

screws

and

remove

the

upper

cover.

Ө

Tum

the

power

on.

@

Push

OPEN/CLOSE

button

and

open

the

disc

table.

Q

BVTP3

X

10

Ө

ВИТРЗ

х

10

B

@

BVTP3

x

10

When

the

power

cannot

be

supplied

@

Unscrew

6

stopper

screws

and

remove

the

upper

cover.

©

Perform

items

@

to

@

of

“When

the

power

can

be

supplied.”

disc

table

loading

pulley

disc

table

Q

front

panel

ass'y

@

Turn

the

loading

pulley

in

the

arrow

(=>

)

direction:

First

chucking

is

released,

and

after

that

the

disc

table

is

out.

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

é

matter

which

is

included

in

the

repair

parts.

The

flexible

board

is

easily

damaged

and

should

be

handled

with

care.

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.

There-

fore,

when

checking

the

laser

diode

emission,

observe

more

than

30

cm

away

from

the

objective

lens.

(Laser

Diode

and

Focus

Search

Operation

Check]

When

turing

on

the

power

with

no

disc,

confirm

the

following

operation.

objective

lens

rear

panel

side

52

|

Bx

(NS

SS

a

:

m

vc

SS

J

a

Oey.

|

@

Confirm

the

laser

beam

is

spread.

€

The

objective

lens

moves

up

and

down

once.

Note

on

the

Transit

Key

Transit

key

The

white

transit

key

on

the

bottom

exterior

of

the

unit

protects

the

optical

system

against

shock

during

transportation.

Before

operating

the

CD

player,

be

sure

to

remove

the

key

by

following

the

instructions

on

the

label,

and

store

it

in

a

safe

piace.

When

transporting

the

unit,

replace

the

key

in

its

original

hole

and

lock

it

in

place.

CDP-C301M/C305M

PROTECTION

OF

EYES

FROM

LASER

BEAM

DURING

SERVICING

This

set

employs

a

laser.

Therefore,

be

sure

to

fol-

1.

Laser

Diode

Properties

low

carefully

the

instructions

below

when

servicing.

Material:

GaAlAs

e@

Wavelength:

780

nm

€

Emission

Duration:

continuous

€

Laser

Output:

max.

44.6

uW*

CAUTION

.

: ;

*

This

output

is

the

value

measured

at

a

distance

of

Use

of

controls

or

adjustments

or

performance

about

200

mm

from

the

objective

lens

surface

on

of

procedures

other

than

those

specified

herein

the

Optical

Pick-up

Block.

may

result

in

hazardous

radiation

exposure.

2.

During

service,

do

not

take

the

Optical

Pick-up

©

Block

apart,

and

do

not

adjust

the

APC

circuit.

If

there

is

a

breakdown

in

the

APC

circuit

(includ-

ing

laser

diode),

replace

the

entire

Optiocal

Pick-

up

Block

(including

APC

borad).

-—À

o

ooo

S

m

——

o

A

м

з

жол

o

hm

BESKYTTELSE

AF

ØJNE

MOD

LASERSTRÅLING

UNDER

SERVICE

I

dette

apparat

anvendes

laserlys.

Derfor

skal

1.

Laser-didoe

data

nedenstáende

instruktioner

noje

felges

under

service.

@

Materiale:

GaAlAs

€

Belgelaengde:

780

nm

Felg

ievrigt

instruktionerne

i

servicemanualen.

®

Udstraling:

Kontinuerlig

€

Laseroutput:

Max.

0,4

mW*

*

Målt

i

1,6

mm

afstand

fra

overfladen

af

objektiv-

ADVARSEL!!

linsen

pä

den

optiske

pick-up

enhed.

Under

service

må

øjnene

ikke

komme

nær

objektiv-linsen

e

Klassifikation:

Klasse

Hlb.

på

den

optiske

pick-up

enhed.

I

tilfælde

af

at

det

er

nødvendigt

at

kontrollere

udsendelsen

af

laserlys,

skal

det

ske

i

en

afstand

af

mere

end

25

cm

fra

den

optiske

pick-up.

2.

Adskil

aldrig

den

optiske

pick-up.

enhed

under

service,

og

juster

ikke

APC

kredslebet

(Automatic

Power

Control).

Ilvis

APC

kredslebet

(incl.

laser-

dioden)

bryder

ned,

skal

hele

den

optiske

pick-up

enhed

(incl.

APC

printkortet)

udskiftes.

LASER

ADVARSEL

MÆRKNING

Følgende

mærkning

findes

indvendig

i

apparatet:

1.

Advarsel

Mærkning

CAUTION

=<

INVISIBLE

LASER

RADIATION

WHEN

OPEN

AND

INTERLOCKS

DEFEATED.

AVOID

EXPOSURE

TO

BEAM

ADVARSEL

|

USYNLIG

LASERSTRÅLING

VED

ÅBNING

NÅR

SIKKERHEDSAFBRYDERE

ER

UDE

AF

FUNKTION

UNDGÅ

UOSATTELSE

FOR

STRÅLING.

4

885.843

02

-—

49404

4

0-4

44

4

04

4

04

4

00-404

042942404249^40440404040404

04040404

^4

0449420404294

9404094904

»4^04^0^5202sc^o^i^

VAROITUS:

Laite

sisaltaà,

laserdiodin,

joka

lahettaa

(nàkymatonta)

silmille

vaarallista

lasersateilyà.

CDP-C305M

SECTION

2

GENERAL

CDP-C301M/C305M

POWER

switch

|

2

|

TIME

button

|

3

|REPEAT

button

|

4

|TIME

FADE

button

|

5

|CONTINUE

button

|

6

|SHUFFLE

button

PROGRAM

button

[8

H««

«-«/»»

»»1

(AMS*/RMS*/manual

search)

buttons

|

9

|i

(play/pause)

button

W

(stop)

button

RM-D306

(CDP-C305M)

—

|

md

|

$

a

|

f

md

AIM]

aye

—

e

Бө

[еюм

HEADPHONES

jack

(CDP-C305M

only)

TIMER

switch

*

AMS

is

the

abbreviation

of

Automatic

Music

Sensor.

**

MS

is

the

abbreviation

of

Random

Music

Sensor.

MUSIC

SCAN

button

[2

|REPEAT

button

|

3

|DISC

1

—5

buttons

DISC

SKIP

button

|

5

|

FADER

button

|

6

|I««

P»

(AMS)

buttons

«44»

(manual

search)

buttons

[

8

|i

(stop)

button

[

9

]l

(pause)

button

p=

(play)

button

CONTINUE

button

SHUFFLE

button

PGM

(program)

button

CDP-C301M/C305M

SECTION

3

ELECTRICAL

ADJUSTMENTS

1.

Perform

adjustments

in

the

order

given.

Use

YEDS-18

(Part

No:

3-702-101-01}

disc

unless

other-

wise

indicated.

3.

Use

the

oscilloscope

with

more

than

10

MQ

impedance.

RF

PLL

Free

Run

Frequency

Adjustment/Lock

Frequency

Check

Procedure:

frequency

counter

TP

(PLCK)

Ото

+

h

==

Put

the

set

into

test

mode.

Connect

test

point

TP

(ASY)

to

ground

with

lead

wire.

Turn

POWER

switch

on.

Connect

the

frequency

counter

to

test

point

TP

(PLCK).

Adjust

RV5

so

that

the

reading

on

frequency

counter

is

4.3218

MHz

+30

kHz.

Ez

sq

(RF

PLL

frequency

adjustment)

Remove

lead

wire

connecting

TP

(ASY)

to

ground.

Set

disc

(YEDS-18)

and

press

P

PLAY

button.

8.

Confirm

that

the

reading

on

frequency

counter

is

4.3218

MHz.

iles

(Lock

frequency

check)

9.

Turn

POWER

switch

off.

Q

+

Q

м

ч

©

E-F

Balance

Adjustment

This

adjustment

should

be

made

when

replacing

TOP

(T-

type

Optical

Pick-up).

Procedure:

oscilloscope

(DC

range)

main

board

—-

TP

(TEO)

O————O

+

TP

(RFG)

dou

de

us

1.

Put

the

set

into

test

mode.

2.

Connect

test

point

TP

(TES)

and

TP

(ADJ)

to

ground

with

lead

wire.

3.

Connect

oscilloscope

to

test

point

TP

(TEO)

and

test

point

TP

(RFG).

4.

Set

disc

(YEDS-18)

and

turn

POWER

switch

on.

5.

Adjust

RV1

so

that

the

traverse

waveform

is

symmetrical

above

and

below.

6.

Turn

POWER

switch

off.

7.

After

adjustment,

remove

the

lead

wire

connected

in

step

2.

A-B

A

(within

596)

B

VOLT/DIV

:

IV

TIME/DIV

:

1ms

Focus

Bias

Adjustment

This

adjustment

should

be

made

when

replacing

TOP

(T-

type

Optical

Pick-up).

Procedure:

oscilloscope

(DC

range)

main

board

aa

TP

(RF)

o——

+

TP

(RFG)

б-———-О

—

1.

Put

the

set

into

test

mode.

2.

Connect

oscilloscope

to

test

point

TP

(RF)

and

test

point

TP

(RFG).

4.

Adjust

RV2

for

an

optimum

waveform

eye

pattern

or

so

that

the

peak

is

maximum.

Optimum

eye

pattern

means

of

the

waveform.

5.

Turn

POWER

switch

off.

Wi

X900

WM

WAN

Focus/Tracking

Gain

Adjustments

A

frequency

responce

analyzer

is

necessary

in

order

to

However,

this

gain

has

a

margin,

so

even

if

it

is

slightly

off,

there

is

no

problem.

Therefore,

do

not

perform

this

adjust-

Focus/tracking

gain

determines

the

pick-up

follow

up

(verti-

cal

and

horizontal)

relative

to

mechanical

noise

and

shock

However,

as

these

reciprocate,

the

adjustment

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are

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ates

increases.

e

When

gain

is

lowered,

mechanical

shock

and

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e

When

gain

adjustment

is

off,

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symptoms

below

appear.

==

“=

[=

e

Music

does

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start

and

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continues

to

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т

low

or

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(4€,

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buttons

pressed.)

ing

PLAY

or

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(YEDS-18)

and

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POWER

switch

on.

that

shape

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clearly

distinguished

at

the

center

RF

signal

waveform

ANA

|

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(Vp-p)

REFERENCE

perform

this

adjustment

exactly.

ment.

when

the

2-axis

device

operate.

e

When

gain

is

raised,

the

noise

when

the

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device

oper-

occurs

more

easily.

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time

until

music

starts

becomes

longer

for

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STOP

>

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—

Primary

Adjustment

—

Note

:

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cannot

be

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positions

of

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controls

before

performing

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adjustment.

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position

after

the

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adjustment

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E

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due

to

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gravity

against

the

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device.

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POWER

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100mV

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e

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Sony CDP-C301M User manual

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