Sony Cdp-c320m User manual

CDP-C320M/C422M

SERVICEMANUAL

UK

Model

E

Model

Australian

Model

i

§

DISC

AUTOMATIC

Disc

LOADING

SYSTEM

B

ef

Photo:

CDP-C325M

CDP-C225/C325

BU-5BD8B

SPECIFICATIONS

General

Power

requirements

UK,

Australian

model:

240

V

AC,

50/60

Hz

AEP,

East

European

model:

220—230

V

AC,

50/60

Hz

E

model:

110

—

120

or

220

—

240

V

AC

adjustable,

50/60

Hz

Power

12

W

consumption

Dimensions

Approx.

355

x

120

x

385

mm

(w/h/d)

(not

including

(14

x

4%

x

15%

inches)

projecting

parts

and

controls)

Approx.

5.0

kg

(11

Ibs

01

02)

fC

P-C325M

CDP-C422M

Compact

disc

digital

audio

system

Laser

Semiconductor

laser

(A

=

780

nm)

Emission

duration:

continuous

Laser

output

Max.

44.6

»W*

*

This

output

is

the-value

measured

at

a

distance

of

about

200

mm

from

the

objective

lens

surface

on

the

Optical

Pick-up

Block.

Frequency

2

Hz

—

20

kHz

(+0.5

dB)

response

Signal

to

noise

More

than

100

dB

ratio

More

than

98

d8

Harmonic

Less

than

0.005%

(1

kHz)

distortion

Channel

More

than

100

dB

(1

kHz)

separation

Wow

and

flutter

|

Below

measurable

limit

Outputs

Output

level

2

V

(at

50

kilohms)

LINE

OUT

Load

impedance

over

10

kilohms

(phono

jacks)

Supplied

accessories

|

CD

P-C825M

CDP-C422M

Audio

signal

1

connecting

cord

|

(phono

plug

x

2

«+

phono

plug

x

2)

Remote

commander

Sony

SUM-3

(NS)

batteries

Design

and

specifications

subject

to

change

without

COMPACT

DISC.

PLAYER

SON

Y.

HEADPHONES

|

Output

level

(stereo

phone

0

—

10

mW

jack)

(variable)

(at

32

ohms)

CDP-C325M/C422M

|

For

the

United

Kingdom

and

European

Countries.

This

Compact

Disc

player

is

classified

as

a

CLASS

1

LASER

product.

The

CLASS

1

LASER

PRODUCT

label

is

located

on

the

rear

exterior.

NOTES

ON

HANDLING

THE

OPTICAL

PICK-UP

The

laser

diode

in

the

optical

pick-up

block

may

suffer

electrostatic

breakdown

because

of

the

potential

di-

ference

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.

CLASS

1

LASER

PRODUCT

LUOKAN

1

LASERLAITE

KLASS

1

LASERAPPARAT

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

objec-

tive

lens

in

the

optical

pick-up

block.

Therefore,

when

checking

the

laser

diode

emission,

observe

from

more

than

30cm

away

from

the

objective

lens.

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.

Note

on

the

Transit

Key

The

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

place.

When

transporting

the

unit,

replace

the

key

in

its

original

hole

and

lock

it

in

place.

MODEL

IDENTIFICATION

—

Specification

Label

—

CDP-C325M

CDP-C422M

SONY:

COMPACT

DISC

PLAYER

MODEL

No.

AEP,

EE

model:

AC:

220—230V~50/60Hz

UK,

AUS

model:

AC:

240V~50/60Hz

E

model:

AC:

110—120,

220—240V~50/60Hz

12W

@

AUS:

Australian

model

EE

:

East

European

model

|

CDP-C325M/C422M

PROTECTION

OF

EYES

FROM

LASER

BEAM

DURING

SERVICING

This

set

employs

a

laser.

Therefore,

be

sure

to

follow

1.

Laser

Diode

Properties

carefully

the

instructions

below

when

servicing.

Material’.

GaAlAs

Wavelength:

780

nm

Emission

Duration:

continuous

Laser

Output

Power:

less

than

44.6

uW*

*

This

output

is

the

value

measured

at

a

distance

of

ce

:

200

mm

from

the

objective

lens

surface

on

the

of

procedures

other

than

those

specified

herein

Optical

Pick-up

Block.

may

result

in

hazardous

radiation

exposure.

CAUTION

Use

of

controls

or

adjustments

or

performance

2.

During

service,

do

not

take

the

Optical

Pick-up

Block

apart,

and

do

not

adjust

the

APC

circuit.

If

there

isa

breakdown

in

the

APC

circuit

(including

laser

diode),

replace

the

entire

Optical

Pick-up

Block

(including

APC

board).

A

a

II

tat

A

Mad

tA

tt

ta

a

NN

St

0

IN

SO

BE

A

mt

PN

DEA

A

at

\

08

RYN

Yt

A

BESKYTTELSE

AF

@JNE

MOD

LASERSTRALING

UNDER

SERVICE

I

dette

apparat

anvendes

laserlys.

Derfor

skal

1.

Laser-didoe

data

nedenstaende

instruktioner

neje

folges

under

service.

@

Materiale:

GaAlAs

@

Belgelangde:

780

nm

Folg

iovrigt

instruktionerne

i

servicemanualen.

@®

Udstraling:

Kontinuerlig

@

Laseroutput:

Max.

0,4

mW*

*

Malt

i

1,6

mm

afstand

fra

overfladen

af

objektiv-

‘ADVARSEL!!

linsen

pa

den

optiske

pick-up

enhed.

Under

service

ma

gjnene

ikke

komme

ner

objektiv-linsen

@

Klassifikation:

Klasse

Ib.

pa

den

optiske

pick-up

enhed.

|

tilfeelde

af

at

det

er

ngdvendigt

at

kontrollere

udsendelsen

af

laserlys,

skal

det

ske

i

en

afstand

af

mere

end

25cm

fra

den

optiske

pick-up.

2.

Adskil

aldrig

den

optiske

pick-up

enhed

under

service,

og

juster

ikke

APC

kredslobet

(Automatic

Power

Control).

Hvis

APC

kredslobet

(incl.

laser-

dioden)

bryder

ned,

skal

hele

den

optiske

pick-up

enhed

(incl.

APC

printkortet)

udskiftes.

LASER

ADVARSEL

MAERKNING

Folgende

mzerkning

findes

indvendig

i

apparatet:

1.

Advarsel

Mzerkning

CAUTION)

«<

INVISIBLE

LASER

RADIATION

WHEN

OPEN

AND

INTERLOCKS

DEFEATED

AVOID

EXPOSURE

TO

BEAM.

ea

Re

ADVARSEL

<

usvNitG

LASERSTRALING

VEO

ABNING

NAR

SIKKERHEDSAFBRYDERE

ER

UDE

AF

FUNKTION

UNDOGA

UDSATTELSE

FOR

STRALING.

VAROITUS:

Laite

sisaltaa,

laserdiodin,

joka

lahettaa

(nakymatonta)

silmille

vaarallista

lasersateilya.

CDP-C325M/C422M

|

SECTION

1

GENERAL

This

section

is

extracted

from

1-1.

LOCATION

AND

CONTROLS

instruction

manual.

Front

Panel

Refer

to

the

pages

indicated

in

( )

for

details.

[1]

POWER

switch

(page

18)

[2]

PLAY

MODE

buttons

CONTINUE

button

(page

18)

SHUFFLE

button

(page

28)

PROGRAM

button

(page

30)

[3]

DISC

1-5

buttons

(page

18)

[4

]

(play)

button

(page

18)

[5

}

Il

(pause)

button

(page

18)

[6

|

@

(stop)

button

(page

18)

I<</PPI

(AMS*)

buttons

(page

24)

</>

(manual

search)

buttons

(page

26)

[9

]

DISC

SKIP

button

(page

18)

=

OPEN/CLOSE

button

(page

18)

[11]

FADER

button

(page

44)

EDIT/TIME

FADE

button

(page

36)

CLEAR

(program

clear)

button

(page

34)

CHECK

(program

check)

button

(page

34)

[15]

TIME

button

(page

22)

Disc

tray

(page

18)

Display

window

PEAK

SEARCH

button

(page

48)

MUSIC

SCAN

button

(page

42)

Remote

sensor

(CDP-C325M

only)

[21]

REPEAT

button

(page

42)

[22]

TIMER

switch

(CDP-C325M

only)

(page

50)

[23]

PHONE

LEVEL

control

(CDP-C325M

Only)

(page

18)

HEADPHONES

jack

(CDP-C325M

only)

*

AMS

is

the

abbreviation

of

Automatic

Music

Sensor.

Remote

Commander

Refer

to

the

pages

indicated

in

(

)

for

details.

CDP-C325M

only

[1]

PROGRAM

button

(page

30)

[2

]

DISC

SKIP

button

(page

18)

[3]

>10

(over

10)

button

(page

24)

[4

]

REPEAT

button

(page

42)

[5

|

™

(stop)

button

(page

18)

[6

|

MUSIC

SCAN

button

(page

42)

FADER

button

(page

44)

<<

>>

(manual

search)

buttons

(page

26)

[9

]

<4

mht

(AMS)

buttons

(page

24)

b>

(play)

button

(page

18)

Il

(pause)

button

(page

18)

[11]

Numeric

buttons

(1-10)

(page

24)

[13]

DISC

1-5

buttons

(page

18)

CONTINUE

button

(page

18)

[15]

SHUFFLE

button

(page

28)

SECTION

2

ELECTRICAL

BLOCK

CHECKING

Note:

1.

CD

Block

basically

constructed

to

operate

without

adjus-

tment.

Therefore,

check

each

item

in

order

given.

2.

Use

YEDS-18

disc

(3-702-101-01)

unless

otherwise

indicat-

ed.

3.

Use

the

oscilloscope

with

more

than

10MQ

impedance.

4.

Clean

an

object

lens

by

an

applicator

with

neutral

deter-

gent

when

the

signal

level

is

low

than

specified

value

with

the

following

checks.

S

Curve

Check

oscilloscope

BD

board

C)

ti

TP(FEO)

Om

—

0+

TP(VC)

O=u-——O

-

Procedure

:

1.

Connect

oscilloscope

to

test

point

TP

(FEO)

on

BD

board.

2.

Connect

between

test

point

TP

(FES)

and

TP

(VC)

by

lead

wire.

3.

Turned

Power

switch

on

and

actuate

the

focus

serch.

(actuate

the

focus

serch

when

disc

table

is

moving

in

and

out.)

4.

Check

the

oscilloscope

waveform

(S

curve)

is

symmetri-

cal

between

A

and

B.

And

confirm

peak

to

peak

level

within

3+1Vp-p.

S

curve

waveform

symmetry

within

3

£1Vp-p

5.

After

check,

remove

the

lead

wire

connected

in

step

2.

Note:

©

Try

to

mesure

several

times

to

make

sure

that

the

ratio

of

A:

B

or

B:

A

is

more

than

10:

7.

e

Take

sweep

time

as

long

as

possible

and

light

up

the

brightness

to

obtain

best

waveform.

RF

Level

Check

oscilloscope

BD

board

()

’

eaten’

TP(RFO)

Ot

OF

TP(VC)

O=t—

0

-

Procedure

:

1.

Connect

oscilloscope

to

test

point

TP

(RFO)

on

BD

board.

2.

Turn

Power

switch

on.

3.

Put

disc

(YEDS-18)

in

and

playback.

4,

Confirm

that

oscilloscope

waveform

is

clear

and

check

RF

signal

level

is

correct

or

not.

Note:

Clear

RF

signal

waveform

means

that

the

shape

“©”

can

be

clearly

distinguished

at

the

center

of

the

waveform.

VOLT/DIV:

200mvV

TIME/DIV:

500nS

RF

signal

waveform

WX

\

i)

f

WY

NY

Haaaue

A

\ i

AA)

ay

Tf

A)

V

level

:

|

1.2

203

Vp-p

oscilloscope

BD

board

C)

mmc,

TP(TEO)

Owg—toy

TP(VC)

gGeg—lo

-

ANY

()

X)

WM

E-F

Balance

Check

Procedure

:

1.

Connect

test

point

TP

(ADJ)

to

ground

and

TP

(TES)

to

TP

(VC)

with

lead

wire.

2.

Connect

oscilloscope

to

test

point

TP

(TEO)

on

BD

board.

3.

Turn

Power

switch

on.

4.

Put

disc

(YEDS-18)

in

and

playback.

5.

Confirm

that

the

osilloscope

waveform

is

symmetrical

on

the

top

and

bottom

in

relation

to

0V,

and

check

this

level.

Traverse

oscilloscope

symmetry

level:

2£1Vp-p

6.

Remove

the

lead

wire

connected

in

step

1.

RF

PLL

Free-run

Frequency

Check

Procedure:

1.

Connect

frequency

counter

to

test

point

(PCK)

with

lead

wire.

frequency

counter

Main

board

ki

:

TP(PCK)

Ot

10+

tr

Confirm

that

reading

on

frequency

counter

is

4.3218MHz.

Turn

Power

switch

on.

Focus/Tracking

Gain

This

gain

has

a

margin,

so

even

if

it

is

slightly

off.

There

is

no

problem.

Therefore,

do

not

perform,

this

adjustment.

Please

note

that

it

should

be

fixed

to

mechanical

center

position

when

you

moved

and

do

not

know

original

position.

Adjustment

Locations

:

(BD

Board)

—Conductor

Side—

{MAIN

Board}

—Component

Side—

SECTION

3

DIAGRAMS

3-1.

CIRCUIT

BOARDS

LOCATION

BD

BOARD

LOADING

MOTOR

BOARD

POWER

SW

BOARD

OPEN/UP

SW

BOARD

SW

BOARD

DISPLAY

BOARD

3-2.

SEMICONDUCTOR

LEAD

LAYOUTS

BA6297AFP

CXD25019

LA5602

M5293L

2SA1175-HFE

letter

side

12345

(TOP

VIEW)

pc*F

CXA1291P

CXD2560M

M5F7807L

DTA114ES

DTC114ES

6

4

1

38

DTC144ES

I

3

6

8

(TOP

VIEW)

(TOPVIEW)

E

CxXD2500AQ

CXD2561BM

M5218AP

SBX1610-59

“8

CXP50116-2879Q

CASE

7

6:5

CXP50120-0200

i

GU

UU

1

od

me

(TOP

VIEW)

CHORE)

i

2?

1]=Voo

2=SIRCS

3=GND

TABLE

MOTOR

BOARD

MAIN

BOARD

GP-1A521

11ES2

1N4148M

RD8.2ES-B2

cathode

anode

©

IC

Block

Diagrams

1¢301

CXD2500AQ

IC101

CXD2501Q

0]

1]

>

oO

az

O@

IC202

LA5602

EN

ES

Ww

a

oa

ao

Zz

aa

Ww

aa

Qa

>

>oagaunno

Lt

aagazu2zn

Zz

bh

CNEDENEDENESENED

(S)

IGEN

SHAPER

TFDR

and

NC

PWM

MOOULATOR

(45)

TEST

MIRA/

NC

DFCTY JUMP?

FOK

SEACH

DETECTOR

CONTROL

SRDR

#-COM

INTERFACE

SOUT

OIRC

ASYMMETRY

CORRECTOR

REF

ERENCE

VOL

TAGE

IC306

LA9215

VARIABLE

PITCH

CONTROL

DIGITAL

AUOIO

INTERFACE,

ADRESS

GENERATOR

AMP

REFERENCE

VOLTAGE

(7)

V

OUT

OVER

CURRENT

LIMITTER

RESET

cen

|

OVER

HEAT

(5)

PROTECTION

ON/OFF

7

ay

m

(,)

$s8so

SCOR

WFCK

(61)

EMPH

oouT

MD2

C16M

C4M

FSTT

XTSL

XTAO

vss

APTL

APTR

DAQ1

DA02

DA03

DAOSL

DAOS

OA06

DA07

OA08

DAO?

CDP-C325M/C422M

|

_

CDP-C325M/C422M

e

Semiconductor

Location

3-3.

PRINTED

WIRING

BOARDS

e

Refer

to

page

7

for

Semiconductor

Lead

Layouts.

[

RefNo.

|

Location

felee

ea

a

I

ee

Oe

Se

es

Oe

es

Oe

OO

I

Se

ee

29

34

A

{BD

BOARD

}

B

(MAIN

BOARD}

(CHASSIS)

OPTICAL

Pigg

4

PICK-UP

BLOCK

(KSS

240A)

|

C

/

seo!

!

SELECTOR]

a

10

~-120V

pos

|

[SW

BOARD}

:

y

CL

I

a

CD

Natl

ie

La

220-240V

[

NS

l

D

#

ss

.

ae

l

|

Eb

r

ome

A

1

|

SW72

|

SW7I9

SW718

SW716

SNe

SW7l2

SW7II

SW7l0

SW709

SW708

SW707

No

&

OPEN/

41a

I

|

Cost

[ow]

ise

THE

Sad

peerelstaeaieisteleel|

[i2]

EF

yee

POWER

CECE

EEE

ECE

i

baseeaceiese

_

TRANSFORMER

=

:

AC

se

IN

FL60I

FLUORESCENT

INDICATOR

TUBE

Sie

E

LOADING

Note:

F

:

|

MOTOR

BOARD

@®

oO——§:

parts

extracted

from

the

component

side.

i

e

@

=:

Through

hoie.

|

:

e

:

Pattern

on

the

side

which

is

seen.

|

®

:

Pattern

of

the

rear

sice.

i

ms

CN502

Gye

MOTOR

M70:

SHUFFLE

é

Au

BUS

LOADING

PROGRAM

=

f

REPEAT

1

=

‘Aa

:

iii

|

wm

Recs

I-6

38-7305

3751

RV751

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Sony CDP-C320M User manual

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