Sony MICROFILM CDP-502ES Manual de usuario

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1

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SPECIFICATIONS

COMPACT

DISC

PLAYER

System

Compact

disc

digital

audio

system

Disc

Compact

disc

Laser

Semiconductor

laser

(A

=

780

nm)

Laser.

output

Spindle

speed

Scan

velocity

Error

correction

Max.0.6

mW

*

*This

output

is

the

value

measured

at

a

distance

of

about

1.6

mm

from

the

objective

lens

surface

on

the

Optical

Pick-up

Block.

200

r.p.m.

to

500

r.p.m.

(CLV)

1.2

—

1.4

misec.

Sony

Super

Strategy

Cross

Interleave

‘Reed

Solomon

Code

Number

of

channels

2

D-A

conversion

16-bit

linear

Frequency

response

2

—

20,000

Hz

+0.5

dB

Harmonic

distortion

Dynamic

range

Channel

separation

Wow

and

flutter

Outputs

Less

than

0.0025%

(1

KHz)

More

than

96

dB

More

than

95

dB

Below

measurable

limit

Line

outputs

FIXED

(phono

jacks)

Output

level

2

V

rms

(at

MSB)

Load.

impedance

over

10

kilohms

VARIABLE

(phono

jacks)

Disc

Track

pitch

Sampling

frequency

Quantization

Modulation

system

Transfer

rate

General

Power

requirements

Power

consumption

Dimensions

Weight

CDP-620ES:

US

Model

Canadian

Model

CDP-502ES:

AEP

Model

UK

Model

E

Model

1.6

ym

44.1

kHz

16

bit

linear

quantizing/channel

EFM

2.03

Mbit/sec.

(before

modulation)

CDP-502ES

AEP.

Model:

220

V

ac

UK

Model:

240

V

ac

E

Model:

110,120,

220

or

240

V

ac

adjustable

50/60

Hz

CDP-620ES

US,

Canadian

Model:

120

V

ac,

60

Hz

16W

Approx.

430

x

80

x

335

mm

(w/hid)

(17

x

34/4

x

13%/4

inches)

including

projecting

parts

and

controls

Approx.

8.5

kg

(18

Ibs

12

02),

net

ATTENTION

AU

COMPOSANT

AYANT

RAPFORT

A

LA

SECURITE!

Max.

output

level

2

V

rms

(at

MSB)

Load

impedance

over

50

kilohms

Headphones

(stereo

phone

jack)

28

mW

at

32

ohms

SAFETY-RELATED

COMPONENT

WARNING!!

COMPONENTS

IDENTIFIED

BY

SHADING

AND

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

PUBLISHED

BY

SONY.

MICROFILM

|

LES

COMPOSANTS

IDENTIFIES

PAR

UNE

TRAME

ET

UNE

MARQUE

A

SUR

LES

DIAGRAMMES

=

SCHE-

MATIQUES

ET

LA

LISTE

DES

PIECES

SONT

CRITIQUES

POUR

LA

SECURITE

DE

FONCTIONNEMENT.

NE

REM-

PLACER

CES

COMPOSANTS

QUE

PAR

DES

PIECES

.

SONY

DONT

LES

NUMEROS

SONT

DONNES

DANS

CE

MANUEL

OU

DANS

LES

SUPPLEMENTS

PUBLIES

PAR

SONY.

;

COMPACT

DISK

PLAYER

SONY.

CDP-502ES/6205S

|

PROTECTION

OF

EYES

FROM

LASER

BEAM

DURING

SERVICING

This

set

employs

a

laser.

Therefore,

be

sure

to

fol-

low

carefully

the

instructions

below

when

servicing.

WARNING

!!

WHEN

SERVICING,

DO

NOT

APPROACH

THE

LASER

EXIT

WITH

THE EYE

TOO

CLOSELY.

IN

CASE

IT

IS

NECESSARY

TO

CONFIRM

LASER

BEAM

EMISSION,

BE

SURE

TO

OBSERVE

FROM

A

DISTANCE

OF

MORE

THAN

30cm

FROM

THE

SURFACE

OF

THE

OBJECTIVE

LENS

ON

THE

OPTICAL

PICK-UP

BLOCK.

LASER

WARNING

LABELS

The

labels

shown

below

are

affixed.

1.

Protective

Housing

Label

DHHS

Non-Interlocked

Protective

Housing

Label

(US,

Canadian

model)

DANGER

INVISIBLE

LASER

RADIATION

WHEN

OPEN.

AVOIO

DIRECT

EXPOSURE

10

BEAM.4-908-401-01

2.

Interlock

defeatable

Label

(US,

Canadian

model)

DANGER

INVISIBLE

LASER

RADIATION

WHEN

OPEN

AND

INTERLOCK

DEFEATED.

AVOID.

DIRECT

EXPOSURE

TO

BEAM.

4-908-402-01

sete

e

US,

Canadian

model

Non-Interlocked

Protective

Housing

Label

DANGER

INVISIBLE

LASER

RACIATION

WHEN

Interlock

defeatable

Label

OIRECT

EXPOSURE

TO

BEAM.4-208-401-01

DANGER

INVISIBLE

LASER

RADIATION

WHEN

OPEN

ANDO

INTERLOCK

DEFEATED.

AVOID

DIRECT

EXPOSURE

TO

BEAM.

4-908-402-01

_~\

\

1.

Laser

Diode

Properties

f

Material:

GaAlAs

Wavelength:

780

nm

Emission

Duration:

continuous

Laser

Output:

max.

0.6

mW*

*

This

output

is

the

value

measured

at

a

distance

of

about

1.6

mm

from

the

objective

lens

surface

on

the

Optical

Pick-up

Block.

®@

Classification:

Class

IIb

.

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

(inclu-

ding

laser

diode),

replace

the

entire

Optical

Pick-

up

Block

(including

APC

board).

2.

Aperture

Label.

....,

(AEP,

UK,

E

model)

AVOID

EXPOSURE

INVISIBLE

LASER

RADIATION

IS

EMITTED

FROM

THIS

APERTURE.

4-908-404-01

@

See

figure

on

next

page

for

location

of

label.

3.

Caution

Label

(AEP,

UK,E

model)

CAUTION

ANO.

!INTERLOCKS

DEFEATED.

ADVARSEL

:

+

INVISIBLE

LASER

RADIATION

WHEN

OPEN

AVOID

EXPOSURE

TO

BEAM.

USYNLIG

LASEASTRALING

VED

ABNING

NAR

SIKKERHEOSAFBRYOERE

ER

UDE

AF

FUNKTION

UNDGA

UDSATTELSE

FOR

STRALING.

@

AEP,

UK,

E

model

Caution

Label

a

\

SS

Aperture

Label

oe

a

_

CDP-502ES/620ES

BESKYTTELSE

AF

OJNE

MOD

LASERSTRALING

UNDER

SERVICE

I

dette

apparat

anvendes

nedenstaende

instruktioner

naje

falges

under

service.

laserlys.

Derfor

Folg

iavrigt

instruktionerne

i

servicemanualen.

ADVARSEL!!

Under

service

ma

@jnene

ikke

komme

ner

objektiv-linsen

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

30cm

fra

den

optiske

pick-up.

1.

Data

for

Laser

Diode

@

Materiale:

GaAlAs

@

Bolgelengde:

780

nm

@

Udstraling:

Kontinuerlig

@

Laser

Output:

max.

0.6

mW*

*

malt

i

1.6

mm

afstand

fra

overfladen

af

objektiv-

linsen

pa

den

optiske

pick-up

enhsd.

Klassifikation:

Svarende

til

klasse

IIb

.

Adskil

aldrig

den

optiske

pick-up

enhed

under

service,

og

juster

ikke

APC

kredsloabet

(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

(AEP

model)

Folgende

mzrkning

findes

indvendig

i

apparatet:

1.

Advarsel

Meerkning

CAUTION

—

=

invisiBLe

LASER

RAOLATION

WHEN

OPEN

AND

INTERLOCKS

DEFEATED.

AVOID

EXPOSURE

TO

BEAM.

ee

ADVARSEL

*<

usyniiG

LASERSTRALING

VED

ABNING

NAR

SIKKERHEDSAFBRYDERE

ER

UDE

AF

FUNKTION

UNDGA

UOSATTELSE

FOR

STRALING.

@

AEP,

UK

model

Aperture

Label

4

685

843

02

2.

Aperture

Label

AVOID

EXPOSURE

INVISIBLE

LASER

RADIATION

IS

EMITTED

FROM

THIS

APERTURE.

4-908-404-01

Aadvarsel

Mzerkning

CDP-502ES/620ES

|

SAFETY

CHECK-OUT

(US

Model)

‘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.

2.

<A

battery-operated

AC

milliammeter.

The

Data

Precision

245

digital

mvuitimeter

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

ia

(0.75

V)

=

Earth

Ground

Fig.

A.

Using

an

AC

voltmeter

to

check

AC

leakage.

FEATURES

With

the

CDP-502ES,

flat

frequency

response

(2

-

20,000

Hz),

low

wow

and

flutter

(lower

than

the

measurable

limit),

wide

dynamic

range

(more

than

96

dB),

minima!

distortion

(0.0025

%)

and

high

channel

separation

(more

than

95

dB)

are

achieved.

Quick

operation

@Feather-touch

function

keys

for

direct

mode

change.

e@Linear

motor

for

quick

selection

search.

Multi-functional

eA

variety

of

playing

modes:

In

the

PROGRAM

mode

the

desired

selections

can

be

played

back

in

any

desired

se-

quence.

In

the

CONTINUE

mode

playback

is

continuous

from

the

desired

selection

to

the

end

of

the

disc.

In

the

SINGLE

mode

only

one

selection

is

played

back.

eThe

shuffle-play

function

plays

selections

back

in

ran-

dom

order.

e@The

AMS

(Automatic

Music

Sensor)

for

quick

selection

location

eThe

index

function

allows

you

to

locate

quickly

the

part

you

want.

eThe

repeat

function

allows.you

to

repeat

play

con-

tinuous

in

any

mode.

eThe

auto

delay

function

allows

you

to

delay

the

playback

of

the

first

selection

2

seconds.

@An

RM-D502

remote

commander

supplied.

eLarge

and

easy-to-read

music

calender

display

shows

the

selection

numbers

on

the

disc

and

the

time

counter

shows

the

elapsed

or

remaining

playing

time.

he

CDP-502ES/620ES

—

CAUTION

FOR

ELECTROSTATIC

BREAKDOWN

—

NOTES

ON

HANDLING

THE

OPTICAL

PICK-UP

BLOCK

(BU-1)

The

laser

diode

in

the

optical

pick-up

block

may

1.

Place

a

conductive

sheet

on

the

workbench.

suffer

electrostatic

breakdown

because

of

the

poten-

(The

black

sheet

used

as

repair

parts

wrapping).

tial

difference

generated

by

the

charged

electrostatic

4.

Place

the

set

on

the

conductive

sheet

so

that

the

load,

etc.

on

clothing

and

the

human

body.

The

printed

matter

below

is

included

in

the

repair

parts.

During

repair,

use

the

procedure

in

the

printed

chassis

touches

the

sheet.

(This

makes

it

the

same

potential

as

the

conductive

sheet).

3.

Place

your

hands

on

the

conductive

sheet.

(This

matter.

The

following

method

is

an

example

for

reference

makes

them

the

same

potential

as

the

sheet).

purposes:

4.

Remove

the

optical

pick-up

block.

5.

Perfrom

work

on

top

of

the

conductive

sheet.

Be

careful

that

clothing

does

not

touch

the

optical

pick-up

block.

Printed

Matter

Included

in

the

Repair

Parts

When

opening

or

repairing

a

BU-1,

the

procedure

for

grounding

as

follows

is

required

to

prevent

damage

caused

by

static

electricity.

1.

Grounding

for

the

human

body.

Be

sure

to

put

on

a

wrist-strap

for

grounding

(with

impedance

lower

than

10°)

whose

other

end

is

grounded

The

strap

works

to

drain

away

the

static

electricity

built-up

on

the

human

body.

.

Grounding

for

the

work

table.

Be

sure

to

lay

on

the

table

a

cunductive

sheet

(with

impedance

lower

than

10°)

such

as

sheet

of

copper

which

is

grounded.

.

As

static

electricity

built-up

on

clothes

is

not

drained

away,

be

careful

not

to

let

your

clothes

touch

the

BU-1.

@)

Wrist-strap

for

grounding

transit

protective

cap

The

unit

BU-1

@)

Conductive

sheet

CDP-502ES

/620ES

NOTE

ON

REPAIR

@

Are

reset

signals

applied

to

each

IC?

During

power

ON,

a

“L”’

signal

is

made

momenta-

:

rily

at

R999

and

C995

and

applied

to

the

RESET

pin

of

each

IC.

During

power

OFF,

a

“L”

signal

is

made

by

Q991.

e@

Are

clock

signals

applied

to

each

IC?

The

microcomputer

clocks

except

for

remote

con-

trol

are

made

at

IC352

(67.7376

MHz)

and

then

divided

into

(4)(16.9344

MHz)

and

output

from

pin

(3).

The

clock

signals

from

pin

3

are

wave

shaped

at

1C351

and

applied

to

1C603

pin

(1).

Here

they

are

further

divided

into

two

and

8.4672

MHz

clocks

are

applied

to

IC601.

The

other

micro-

computers

use

the

4.2336

MHz

signal

(divided

at

[C603

and

output

from

pin

).

e@

Are

the

optical

block

and

servo

operating?

If

power

is

turned

on

when

a

disc

is

not

inserted,

the

laser

goes

up

and

down

three

times.

Correct

optical

block

and

servo

system

operation

can

be

checked

by

confirming

by

eye

that

the

laser

is

lit

up

at

this

time.

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,

from

more

than

30

cm

away

from

the

objective

lens.

2}

Confirm

that

laser

beam

is

spread,

(3)

Up

and

down

motion

of

the

objective

lens,

(3

times)

optical

pick-up

block

©

Hold

down

optical

pick-up

by

a

finger.

CDP-502ES/620ES

©

CDP-502ES/620ES

LOCATION

AND

FUNCTION

OF

CONTROLS

Front

panel

Photo:

CDP-502ES

@

Disc

compartment

The

disc

compartment

opens

when

the

OPEN/CLOSE

key

@

is

pressed.

The

disc

compartment

can

be

closed

by

pressing

the

front

of

it

lightly,

by

pressing

the

OPEN/CLOSE

key

again

or

by

pressing

the

B®

PLAY

key

6.

@

OPENICLOSE

key

The

disc

compartment

opens

when

this

key

is

pressed,

and

closes

when

it

is

pressed

again.

©

REMOTE

SENSOR

and

indicator

The

signal

transmitted

by

the

supplied

RM-D502

remote

commander

is

received

here.

The

indicator

blinks

to

in-

dicate

that

a

function

key

on

the

remote

commander

has

been

pressed.

@

Direct

selection

keys

The

keys

numbered

({1]

-

[20],

[+

10]

and

[0]

are

used

to

select

the

desired

selection

directly

by

number.

Except

during

the

PROGRAM

mode

(page

15),

the

selection

will

begin

to

play

when

the

numbered

key

is

pressed.

©

>

PLAY

key

Press

to

start

disc

play.

The

®

indicator

will

be

lit

up

during

play.

@

i

PAUSE

key

Press

to

pause

during

play.

The

§4#

indicator

will

light

up.

To

release

the

pause

mode,

press

this

key

again.

The

#4

indicator

will

go

off

and

play

will

resume.

@

AMS

(Automatic

Music

Sensor)

keys

The

desired

selection

can

be

located

by

pressing

one

of

these

keys

during

play

or

during

pause.

-

kg:

Press

once

to

go

back

to

the

beginning

of

the

selection

being

played.

To

go

back

to

the

previous

selection,

press

two

times,

and

so

on.

bp:

Press

once

to

skip

ahead

to

the

beginning

of

the

next

selection.

Press

twice

to

skip

to

the

following

selection,

and

so

on.

©

INDEX

keys

Press

one

of

these

keys

to

search

for

a

particular

index

number

(signals

prerecorded

on

the

disc,

indicating

divi-

sions

within

a

selection),

to

start

play

from

the

desired

point

within.

a

selection.

The

index

numbers

are

displayed

in

the

display

window.

«_:

Press

once

to

return

to

the

previous

index

number.

—:

Press

once

to

skip

to

the

next

index

number.

If

the

key

is

pressed

during

playback

of

a

disc

on

which

no

index

numbers

have

been

recorded,

play

will

start

from

the

beginning

of

the

current

selection.

©

CHECK

key,

CLEAR

key

CHECK:

This

key

is

for

checking:

the

order

of

the

programmed

selections.

CLEAR:

In

order

to

clear

the

programmed

selections

one

by

one,

first

display

the

selection

number

with

the

CHECK

key,

then

press

this

key.

Also,

press

this

key

to

clear

[+

10]if

it

is

pressed

by

mistake.

@

PLAY

MODE

keys

CONTINUE:

Press

this

key

to

play

continuously

from

the

first

(or

desired)

to

last

selection,

in

order

from

the

lowest

number.

SINGLE:

Press

to

play

one

selection

only.

PROGRAM:

Press

to

program

the

desired

selections

in

the

desired

order

continuously.

@

STOP

(RESET)

key

When

this

key

is

pressed

during

play,

play

will

stop

and

the

player

will

stand

by,

waiting

for

your

instructions.

All

selection

numbers

are

displayed

in

the

display

window

and

the

TRACK

and

the

INDEX

indicators

show

7.

@

Manual

search

keys

These

keys

are

used

to

search

fora

particular

point.

You

can

monitor

the

sound

while

going

in

fast

forward

or

fast

reverse

during

search:

:

<4<q:

Keep

pressed

to

go

backwards

at

high

speed.

bp

:

Keep

pressed

to

go

forward

at

high

speed.

—7J—

Photo:

CDP-502ES

®

POWER

switch

@®

TIMER

switch

Using

an

optional

timer,

the

player

can

be

set

to

start

playing

automatically

at

a

particular

time.

®

HEADPHONES

jack

(stereo

phone

jack)

Accepts

any

stereo

headphones

equipped

with

a

stereo

phone

plug.

@®

REPEAT

key

Press

to

repeat

play.

There

are

five

types

of

repeat

play:

one

selection,

all

selections,

A

—

B

,

program

and

shuf-

fle

repeat.

@®

TIME

(elapsed

or

remaining

time)

key

When

this

key

is

pressed

during

play,

the

time

remaining

for

this

selection

or

the

time

remaining

on

the

disc

is

displayed.

®

AUTO

DELAY

key

When

this

key

is

pressed,

two

seconds

of

blank

space

are

inserted

before

play

of

the

first

selection

begins.

This

function

is

cancelled

by

pressing

the

key

again.

@®

SHUFFLE

PLAY

key

Selections

are

shuffled

and

played

in

a

random

order

when

this

key

is

pressed.

When

all

of

the

selections

on

the

disc

have been

played

once,

the

shuffle

play

is

cancelled.

Display

window

‘CDP-502ES/620ES

CDP-502ES/620ES

@

LINE

OUT/PHONE

LEVEL

control

This

control

adjusts

the

output

levels

for

both

the

LINE

OUT

VARIABLE

jacks

@

on

the

rear

panel

and

the

HEAD-

PHONES

jack

@®

on

the

front

panel.

Output

level

in-

creases

when

it

is

turned

to

MAX.

This

control

also

turns

automatically

when

operated

using

the

supplied

remote

commander

RM-D502.

@

DISC

indicator

This

indicator

lights

up

when

the

disc

compartment

is

moving,

when

the

disc

compartment

has

closed

with

a

disc

in

place

and

during

disc

playing.

You

can

tell

whether

a

disc

is

inserted

or

not

even

when

the

disc

compartment

is

closed

by

checking

this

in-

dicator.

@

TRACK

indicator

When

the

disc

is

inserted

using

the

OPEN/CLOSE

key

@

or

by

pressing

on

the

front

of

the

disc

compartment

@,

the

number

of

selections

on

the

disc

is

displayed

for

several

seconds.

When

play

begins,

the

number

of

the

selection

being

played

is

displayed.

When

the

®

key

@

is

pressed

continuously

and

you

go

past

the

end

of

the

last

selection,

77is

displayed.

If

the

<q

key

®

is

kept

pressed

and

you

go

past

the

beginning

of

the

first

selection,

_~is

displayed.

®

Time

counter

When

the

disc

is

inserted

and

the

disc

compartment

°

closed,

the

total

time

of

all

the

selections

on

the

disc

is

displayed

for

several

seconds.

(When

the

m®

PLAY

key

@

is

used,

this

display

does

not

appear.)

When

play

begins,

the

elapsed

time

the

selection

has

been

playing

is

displayed.

When

the

TIME

key

®

is

pressed,

the

time

remaining

un-

till

the

selection

ends

is

displayed

after

a

minus

‘‘—”

symbol.

When

this

key

is

pressed

again,

the

play

time

re-

maining

is

displayed

after

a

minus

symbol.

The

display

varies

depending

on

the

setting

of

the

PLAY

MODE

key

@

and

SHUFFLE

PLAY

key

@®.

@

PGM

indicator

This

indicator

lights

up

when

the

PLAY

MODE

PRO.

GRAM

key

@

is

pressed

in

stop

mode,

then

goes

out

after

the

disc

has

begun

to’play.

|

The

indicator

also

lights

up

when

the

programmed

selections

are

being

checked

even

during

play.

®

INDEX

indicator

This

displays

the

index

numbers

of

the

selection

being

played.

After

programming

but

before

play,

or

when

checking

the

programmed

selections,

the

INDEX

in-

dicator

displays

the

order

the

selection

currently

displayed

on

the

TRACK

indicator

@

was

programmed.

(At

this

time

the

red

PGM

indicator

@

lights

up.)

@

Music

calendar

display

window

.

When

a

disc

is

inserted

and

the

player

is

on

stand-by,

the

number

of

selections

on

the

disc

is

displayed.

For

a

disc

with

21

or

more

selections,

1

—

20

light

up,

as

well

as

the

OVER

indicator

@.

,

The

display

changes

according

to

the

mode

and

which

function

keys

are

pressed.

@

OVER

indicator

This

indicator

lights

up

when

a

disc

with

more

than

21

selections

is

inserted.

—9Q—

@

LINE

OUT

jacks

This

unit

is

equipped

with

two

pairs

of

LINE

OUT

jacks.

The

FIXED

jacks

have

a

constant

output

level

and

the

VARIABLE

jacks

output

level

can

be

changed

with

the

LINE

OUT

control

@.

The

VARIABLE

jacks

are

convenient

to

use

for

matching

the

playback

sound

levels

of

a

tuner

or

other

audio

equipment.

and

the

CD

player

without

having

to

adjust

the

volume

control

of

the

amplifier.

The

VARIABLE

jacks

output

level

can

be

also

adjusted

_

with

supplied

remote

commander.

@®

PLAY

MODE

initializing

switch

This

switch

performs

the

same

function

as

the

PLAY

MODE

keys

@

on

the

front

panel.

The

setting

of

this

switch—CONTINUE,

SINGLE

-or

PROGRAM—deter-

mines

the

mode

when

power

is

turned

on,

so

set

this

switch

to

the

mode

most

often

used.

After

the

power

is

turned

on,

change

the

mode

with

the

PLAY

MODE

keys

@,

as

this

switch

does

not

work

once

the

power

is

turn-

ed

on.

@

ACCESSORY

CONNECTOR

This

connector

can

be

used

to

connect

an

optional

equipment

which

will

be

available

in

the

future.

CDP-502ES/620ES

SECTION

1

OUTLINE

CIRCUIT

DESCRIPTION

1-1,

OUTLINE

10101

1C601

1C603

CX20109 CX23035

CX23034

D/A

LINE

OUT

OPTICAL

CON-

PICK-UP

DIGITAL

VERTER

BLOCK

FILTER

FILTER

AMP

1¢501

CX20108

uv

SERVO

N

KEY

INPUT

TRACK

{

REMOTE

CONTROL

JUMP

INPUT

Above

block

diagram

shows

configuration

of

this

set.

Master

control

IC

(IC702)

serves

as

the

center

of

all

operation.

Master

control

IC

(IC702)

assumes

interface

between.

man

and

machine

like

key

input

and

remote

control

input.

Mechanical

control

IC

(IC701)

assumes

interface

between

master

control

IC

(IC702)

and

machine,

For

example,

if

PLAY

button

is

pressed

from

key

input,

master

control

(IC702)

gives

mechanical

con-

trol

IC

(1C701).a

command

to

make

PLAY

mode.

When.

this

command

is

given,

mechanical

control

IC

(IC701)

works

in

routine

operation

to

make

PLAY

mode.

It

gives

every

kind

of

commands

for

ICS501,

601

and

they

are

in

PLAY

mode.

Through

[C501

and

IC601

use

common

data

bus,

they

distinguish

a

command

for

IC501

or

IC601

by

a

higher

rank

4

bit

value

of

each

command

from

mechanical

control

IC

(IC701).

Command

for

ICS01:

higher

rank

4

bit

0000-0011

(0-3

with

sexadecimal

number

system)

are

used.

Command

for

IC601:

higher

rank

4

bit

1010-1110

(A-E

with

sexadecimal

number

system)

are

used.

IC501

controls

servo

(focus,

tracking,

sled)

mainly.

IC601

checks

EFM

demodulation

and

CRC.

CDP-502ES/620ES

The

illustration

below

shows

flow

chart

of

simple

operation

after

power

is

ON.

POWER

ON

CONFIRM

NO

THAT

TOC

WHEN

SLED

POSITION

IS

READ.

IS

OUT-OF

NORMAL

ONE.

EACH

IC

RESET

INITIAL

SETTING

ta

YES

ae

YES

IS

DISC

TABLE

CLOSED?

NO

CLOSE

DISC

TABLE

RETURN

AT

THE

BEGINNING

OF

THE

SELECTION

BY

100

TRACK

JUMP.

IN

CASE

OF

OPPOSITE

SIDE

DISC

MAY

RUN

AWAY.

DOES

PLAY

NO

LAMP

GO

ON?

MOVE

SLED

MOTOR

AND

SET

IT

AT

INNERMOST

CIRCUMFERENCE.

PLAY

MAKE

FOCUS

SEARCH

AND

CHECK

IF

DISC

IS

INSERTED.

MAKE

STOP

MODE.

iS

THERE

REMOTE

CONTROL

INPUT?

1S

DISC

NO

INSERTED?

YES

STOP

MODE

TO

EACH

MODE

ROTATE

DISC

TO

EACH

MODE

MOTOR

CONFIRM

THAT

TOC

IS

READ.