Sony Discman D-50MkII Bedienungsanleitung

]

[REVISED

Discard

D-50MkH/D-7S

SERVICE

MANUAL

(No.

9-952-109-11)

previously

issued.

STEP/MIN

“SEC

Refer

BP-200

Service

Manual

issued

previously

for

information

rechargeable

battery

pack

supplied

with

this

set.

Model

Canadian

Model

‘D-SOMkII:

AEP

Model

AUS

Model

FRENCH

Model

Dutch

Model

Pisthan

SPECIFICATIONS

System

Compact

disc

digital

audio

system

General

Disc

Compact

disc

Power

requirements

Lead

acid

battery

(closed

type)

Material:

GaAlAs

Wavelength:

780nm

Emission

duration:

Continuous

Laser

output:

Max.

0.4mvV*

*This

output

the

value

measured

distance

about

1.6

from

the

objective

lens

surface

the

Optical

Pick-up

Block.

500r.p.m.

200r.p.m.

(CLV)

Laser

diode

properties

Spindie

speed

Scan

velocity

1.2-1.4misec.

Error

correction

Sony

Super

Strategy

Cross

Interleave

Reed

Solomon

Code

Number

channels

D-A

conversion

16-bit

linear

Frequency

response

20--20,000

Hz‘}dB

Total

harmonic

distortion

Less

than

0.008

Oynamic

range

than

90d8

kHz)

Wow

and

flutter

Below

measurable

limit

Outputs

(at

input

level)

Line

output

(stereo

minijack)

Output

level

1.6V

rms

Load

impedance

over

kilohms

Headphones

(stereo

minijack)

ohms

CAUTION

Use

controls

adjustments

performance

procedures

other

than

those

specified

herein

may

result

hazardous

radiation

exposure.

SAFETY-RELATED

COMPONENT

WARNING!!

COMPONENTS

IDENTIFIED

SHADING

AND

MARK

THE

SCHEMATIC

DIAGRAMS

AND

THE

PARTS

LIST

ARE

CRITICAL

SAFE

OPERATION.

REPLACE

THESE

COMPONENTS

WITH

SONY

PARTS

WHOSE

PART

NUMBERS

APPEAR

SHOWN

THIS

MANUAL

SUPPLEMENTS

PUBLISHED

SONY.

using

Sony

BP-200

rechargeable

battery

pack

(supplied),

Eight

IEC

designation

LR6

atkaline

batteries

(size

AA)

using

Sony

EBP-380

battery

case

(optional),

12V

jack

accepts;

Sony

power

adaptor

(supplied)

For

use

US,

Canadian

Model

120V

ac,

For

use

UK,

AUS

Model

240V

ac,

For

use

AEP,

Dutch

Model

220V

ac,

For

use

Model

110,

120,

220,

240V

ac,

50/60

Sony

DCC-120

car

battery

cord

(optional)

for

use

12V

car

battery

Power

consumption

2.6W

Dimensions

Approx.

125.927

125.9mm

(w/hid)

(5x

1/,x5

inches)

not

incl.

inclined

part

(depth)

not

inct.

projecting

parts

and

controls

Approx.

126.9

«31.5

132.5

(wihid)

(5x

1/,x5Y,

inches)

incl.

projecting

parts

and

controls

Weight

Approx.

510g

(11!b

2.02),

net

ATTENTION

COMPOSANT

AYANT

RAPPORT

SECURITE!

LES

COMPOSANTS

IDENTIFIES

PAR

UNE

TRAME

UNE

MARQUE

SUR

LES

DIAGRAMMES

SCHE-

MATIQUES

LISTE

DES

PIECES

SONT

CRITIQUES

POUR

SECURITE

FONCTIONNEMENT.

REM-

PLACER

CES

COMPOSANTS

QUE

PAR

DES

PIECES

SONY

DONT

LES

NUMEROS

SONT

DONNES

DANS

MANUEL

DANS

LES

SUPPLEMENTS

PUBLIES

PAR

SONY.

COMPACT

DISC

COMPACT

PLAYER

MICROFILM

SONY.

FEATURES

Extremely

compact

size

for

easy

carrying

High

performance

and

high

fidelity

AMS

(Automatic

Music

Sensor)

for

quick

location

selections

function

for

quick

location

desired

point

particular

selection

RMS

(Random

Music

Sensor)

allows

selections

played

specified

order.

Shuffle-play

function

repeatedly

plays

selections

random

order.

Repeat

functions

for

the

whole

disc

and

for

particular

portion

Digital

readout

display—the

track

number

the

disc

and

the

elapsed

re-

maining

playing

time

are

shown

the

LCD

(Liquid

Crystal

Display)

window.

TROUBLE

SHOOTING

GUIDE

Disc

play

does

not

start.

The

POWER

switch

set

OFF.

The

disc

inserted

with

the

labeled

surface

face

down.

The

disc

incorrectly

inserted.

Dusty

defective

disc

Dirty

dusty

lens

The

disc

compartment

lid

not

closed.

Moisture

condensation

The

power

adaptor

not

plugged

the

wall

outtet.

Weak

battery

The

car

battery

cord

not

firmly

connected.

sound

from

headphones

The

headphones

plug

not

firmly

connected

the

PHONES

jack.

sound

from

speakers

Incorrect

connections

The

amplifier

not

turned

on,

Skipping

sound

Dirty

defective

disc

Dirty

lens

Strong

vibration

MAINTENANCE

CLEANING

THE

CASING

‘

Clean

the

casing

with

soft

cloth

slightly

moistened

with

water

mild

dete:

gent

solution.

not

use

any

type

abrasive

pad,

scouring

powder

solve=i

such

alcohol

benzine

they

may

mar

the

finish

the

casing.

CLEANING

THE

LENS

you

have

accidentally

touched

the

lens

with

dirty

finger

the

dust

ont

lens

prevents

the

set

from

operating

properly,

open

the

disc

compartment

with

the

OPEN

button

and

clean

the

lens.

remove

dust

Blow

the

lens

few

times

with

commercially

available

blower,

brush

dust

away

the

direction

the

arrow,

then

blow

the

lens

again.

Blower

NOTES

COMPACT

DISCS

Handle

the

disc

its

edge,

and

keep

the

disc

clean

not

touch

rainbow

colored

surface.

apa

not

stick

paper

tape

nor

wer?

anything

the

labeled

surface.

not

expose

the

disc

direct

sunlight

heat

sources

such

hot

air

duct

nor

leave

car

parked

direct

sunlight

where

there

can

considera

rise

the

temperature.

Before

playing,

clean

the

disc

with

the

optional

cleaning

cloth.

Wipe

the

disc

from

the

center

out.

not

use

solvents

such

benzine,

thinner,

commercially

available

cleaners

anti-static

spray

intended

for

analog

discs.

After

playing,

store

the

disc

its

case.

perpen

mae

gap

eee

pny

EET

FPR

pre

eee

epee

omens

Servicehilfe

Datum:

25.08.86

Ref.:

DA-O3886

Modell:

D-SOMKII

(D-7S)

DISC-TELLER

DREHT

SICH

NICHT

Code:

Has/scho

Fehlererscheinung:

Der

Disc-Teller

drenht

sich

nicht,

obwohl

der

Disc-Motor

lauft.

Ursaches

Das

Yahnmrad

des

Disc-Tellers

ist

auf

der

Welle

ver-

ruts\ent.

Gbhilfe:

Zahnrad

des

Disc-Tellers

aut

die

Messinghiilse

der

Welle

schieben,

Sicherungslack

auftragen

und

das

Zahnrad

mit

}

dem

Stopper

festsetzen.

Varfahrens

Disc-Teller

Ffeilrichtung

driicken

und

Zahnrad

aufstecken

(siehe

Bild

1).

Zahnrad

Poa

\pise-Teller

Messinghiilse

weit

herunterdriicken,

dai

sie

biindig

mit

der

Oberflache

des

Zahnrades

abschliefit

(Bild

2).

tehatoen)

Fephod

a2:

Arieibeatiies

Abteilung

Technische

Information

“SONY

DEUTSCHLAND.

GmbH,

Hugo-Eckener-StraBe

20,

5000

Koln

30,

Tel.:

(02

21)

5966-1

SONY

Servicehilfe

Sicherungslack

auf

die

Anschiufistelle

auftragen,

dabei

den

Disc-Teller

drehen.

aN)

Sicherungslack

Disce-Teller

entsprechend

Hild

nach.oben

driicken

und

gleich-

zeitiqg

den

Stopper

anbringen

und

mit

dem

dazugehorigen

Stabchen

fest

andritcken.

Reparatursatz

ET.-Nr.:

X-4907-035-1

Abstandsstiicke

Stabchen

FTrvrcsineenoe

snot

HULL

——————

Hoheneinstellung

des

Disc-Tellers

Konterschraube

entsprechend

der

Dicke

des

Abstandsringes

justieren;

die

Disc-Tellerhdhe

lafst

sich

durch

Abstandsstiicke

verandern.

(Im

Reparatursatz

enthalten)

Zahnrad

Disc-Teller

Finstellverfahren:

Konterschraube

120

Grad

nach

rechts

dre-

hen.

Konterschraube

mit

Lack

sichern.

Anmer

kung:

Die

Konterschraube

nicht

fest

anziehen,

Sich

sonst

die

Héhe

verandert,

sobald

der

Schraubendreher

herausgezogen

wird.

Abteilung

Technische

Information

SONY

DEUTSCHLAND

GmbH,

Hugo-Eckener-StraBe

20,

5000

KOin

30,

Tel:

(0221)

-1

'—

CAUTION

FOR

ELECTROSTATIC

BREAKDOWN

—

NOTES

HANDLING

THE

OPTICAL

PICK-UP

BLOCK

(KSS-110G)

The

laser

diode

the

optical

pick-up

block

may

Place

conductive

sheet

the

workbench.

suffer

electrostatic

breakdown

because

the

poten-

(The

black

sheet

used

repair

parts

wrapping).

tial

difference

generated

the

charged

electrostatic

Place

the

set

the

conductive

sheet

that

load,

etc.

clothing

and

the

human

body.

}

the

chassis

touches

the

sheet.

(This

makes

the

The

printed

matter

below

included

the

repair

same

potential

the

conductive

sheet).

arts,

During

repair,

use

the

procedure

the

printed

P 7

Place

your

hands

the

conductive

sheet.

(This

matter.

The

flexible

board

easily

damaged

and

should

makes

them

the

same

potential

the

sheet).

handled

with

care.

Remove

the

optical

pick-up

block.

The

following

method

example

for

reference

Perform

work

top

the

conductive

‘sheet.

purposes:

careful

that

clothing

does

not

touch

the

optical

pick-up

block.

Printed

Matter

Included

the

Repair

Parts

When

opening

repairing

the

unit,

the

procedure

for

grounding

follows

required

prevent

damage

caused

static

electricity.

Grounding

for

the

human

body

sure

put

wrist-strap

for

grounding

(with

impedance

lower

than

10®

(2)

whose

other

end

grounded,

The

strap

works

drain

away

the

static

electricity

build-up

the

human

body.

Grounding

for

the

work

table

sure

lay

the

table

conductive

sheet

(with

impedance

lower

than

10°

such

sheet

copper,

which

grounded.

static

electricity

build-up

clothes

not

drainded

away,

careful

not

let

your.clothes

touch

the

unit.

Handling

the

flexible

board

The

flexible

board

easily

damaged

and

should

handled

with

care.

Wrist-strap

for

grounding

The

unit

Chip

Component

Indications

The

official

specifications

which

are

presently

indicated

are

EIAJ

standard.

(1)

MELF

(leadless):

EIAJ

RC-8001

(2)

Square

chip

components

(laminated

ceramic):

EIAJ

RC-3699.

Square

chip

resistors

are

presently

under

study

EIAJ.

The

following

explanation

covers

square

chip

components

(MELF

omitted).

2-letter

Method

(EIAJ

RC-3699)

Letter

combination:

Letter

meaning:

letter

number

letter

effective

numeric

“number

multiplier

The

units

used

are

for

capacitors

and

(ohm)

for

resistor.

(This

mainly

used

for

Symbol

and

Numeric

and

Multi-

plist

capacitors.)

ESOC

cone

fwamere|t

[i.fra[valis|ie|tal2

[ealaaiaa|

juste

[wwe

otal

|r}

uly

(wl

[Numeio|3_|3.3]36/2.0]4.9|4.7/6.1[5.6]82]6¢/7.5|

eee

10!

1.5

10°

(or,

1022)

1500

(or,

1.5

kQ)

3-number

Method

(Mainly

used

for

chip

resistors)

Number

meaning:

Ist

and

2nd

number

effective

numeric

3rd

number

multiplier

Unit:

.pF

for

capacitor,

for

resistor

—

1000092

(or,

0.01

uF)

2200002

220

(or,

0.22

uF)

Ex.:

103

10°

224

10*

4-letter

Method

(used

for

capacitor)

Letter

combination:

Letter

meaning:

numbers

letter

number

effective

numeric

multiplier

(same

3-number

method)

letter

capacitor

response

Symbol

and

Response

(

For

temperature

compensation

)

emis

[*[*

[8]

[vor

[Rewonm

[os]

[na

[se

[ra

[us

[st

temperature

coefficient

tolerance,

and

J,K.

(For

high

dielectric

constant)

—

symoo

[

Frenne

|e [F

Ex.:

47x

10°

47000pF

0.047uF

response

[Fe

sss

150pF

?|>

22x10?

2200pF

response

Replacing

chip

components

All

chip

components

should

connected

and

disconnect-

ed,

using

tapered

soldering

iron

[temperature

the

iron

tip:

less

than

280°C

(536°F)],

pair

tweezers

and

braid-

wire.

Precautions

for

replacement

not

disconnect

the

chip

component

forcefully.

Otherwise,

the

pattern

may

peel

off.

Never

re-use

disconnected

chip

component.

Dispose

all

old

chip

components.

protect

the

chip

component,

heating

time

for

attach-

ing

the

component

should

within

seconds.

Removing

chip

components

(1)

Removing

solder

electrode

Remove

the

solder

the

electrode,

using

thin

braided

wire.

not

remove

the

solder

the

part

(chip

component)

attached

adjacent

the

electrode.

Pattern

Soldering

iron

Braided

wire

(2)

Disconnecting

chip

components

Turn

the

tweezers

with

the

soldering

iron

alternately

applied

both

electrodes,

and

the

chip

component

will

disconnected.

Take

careful

precautions

while

disconnecting,

because

the

chip

component

force-

fully

removed

the

land

may

peel

off.

Never

re-use

disconnected

chip

component.

Tweezers

—

Turn

(3)

Smoothing

the

soldered

surface

hoied

After

disconnecting

the

chip

component,

remove

the

solder

using

braided

wire

smooth

the

land

surface.

;

Connecting

chip

components

The

value

chip

components

not

displayed

the

main

body.

Take

due

precautions

avoid

mixing

new

chip

components

with

other

ones.

(1)

Applying

solder

land

one

side

Apply

thin

layer

solder

the

land

one

side

where

the

chip

component

connected.

Too

much

solder

may

cause

bridging.

Small

quantity

solder

(2)

Speedy

soldering

Hold

the

chip

component

the

desired

position,

using

tweezers,

and

apply

the

soldering

iron

the

arrow-marked

direction.

protect

the

chip

compo-

nent,

heating

time

should

within

seconds.

Soldering

iron

Land

Printed

circuit

board

(3)

Speedy

soldering

electrode

the

other

side

Solder

the

electrode

the

other

side

the

same

—

way

(2)

above.

Flexible

Circuit

Board

Repairing

make

thermal

controller

soldering

iron

connector

Keep

the

temperature

the

soldering

iron

270°

10°C

during

repairing.

You

can

maintain

the

temperature

the

soldering

iron

around

270°C

using

the

ther-

mal

controller

illustrated

the

right.

not

touch

the

soldering

iron

than

seconds

times

the

same

conductor

the

circuit

board.

not

apply

force

the

conductor

when

soldering

unsoldering.

(voltage

resistant:

1.4kV)

Part

No.

8-719-210-66

Tip

soldering

iron

solder

good

wrong

eee

EEA

COE

soldering

iron

ASS

wind

insulating

tape.

===

BOARDS/SWITCH/MOTOR

LAYOUTS

optical

pick-up

block

(FOP)

sled

motor

(M901)

open/close

switch

limiter

board

KSS-110G

(S802)

servo

board

laser

switch

(S507)

LCD

module

(ND801)

Power

switch

(S401)

spindle

motor

(M902)

board

limit

switch

(S807)

SERVICE

MODE

(service

program)

shown

page

17,

the

program

this

set

selects

either

service

program

routine

normal

routine

after

power

supply

connected

and

RESET

signal

enters.

When

enters

service

program

routine,

the

microcomputer

brings

the

necessary

job

from

each

subroutine

corresponding

the

key

input,

and

executes

that

job.

Opera-

tion

check

can

performed

efficient-

using

this

mode.

The

operation

method

service

mode

explained

below.

MKEY

PRESSED?

s809

CHECK

(IC8o1

‘®)

YES

SERVO

ALL

OFF

POWER

INITIAL

SETTING

LCD

LIGHTING

START

PERKEY

—-—

POWER

RESET

PRESSED?

YES

$806

CHECK

(1c801

(14))

FOCUS

ARE

SPINDLE

veg

“

MOTOR

ROTATED?

(PAGE

FIG.

SPINDLE

AUTO

PRIOR

KEY

PRESSED?

YES

$807,

808_CHECK

(1C801

42),

43)

TRACKING

SERVO TURNS

OFF

AND

OPTICAL

PICK-UP

MOVES.

IS’

KEY-MODE

KEY

PRESSED?

YES

S805

CHECK

(1C801

)

TRACKING,

SLED

SERVO

REMAIN

KEY

PRESSED?

$804

CHECK

(IC801

@6))

YES

LCD.

DISPLAY

STOP

Fig.

Service

Program

Flow

Chart

—7J—-

NOTES

LASER

DIODE

EMISSION

CHECK

The

laser

beam

this

model

concentrated

focused

the

disc

reflective

surface

the

objec-

tive

lens

the

optical

pick-up

block.

Therefore,

when

checking

the

laser

diode

emission,

observe,

from

than

away

from

the

objective

lens,

Laser

Diode

Check

Procedure

The

laser

diode

this

set

will

not

emit

unless

the

top

panel

closed

and

S501

(terminal

sorting

type),

$802

(leaf

type)

are

turned.

on.

Focus

can

operated

service

mode

even

S802

OFF,

that

the

laser

diode

will

emit

$501

(terminal

shorting

type)

are

turned

this

mode.

The

laser

diode

checked

using

the

current

value

which

flows

the

laser

diode

inside

the

FOP.

Procedure

(service

mode

normal

operation).

Check

the

laser

diode

emission

with

the

eye.

Open

upper

panel

and

turn

$501,

802

Fig.

the

service

mode,

turn

$501

only.

Press

the

pill

key.

Observe

the

objective

lens

and

confirm

that

the

laser

diode

emitting

light.

this

time,

the

laser

diode

goes

about

seconds

due

focus

search.

does

not,

APC

circuit

FOP

defective.

Short-circuit

with

tweezers.

Procedure

(service

mode

normal

operation).

Check

the

curent

with

flows

the

laser

diode.

the

top

panel.

Remove

the

main

board

and

read

the

current

value

the

label

affixed

the

FOP.

(Label

FOP)

SONY

Japan

LASER

POWER

0.4mW

MAX.

KSS-110G

07740

current

value

This

means

49.9

mA,

The

current

value

varies

with

the

set.

Connect

VOM

shown

Fig.

Press

the

key,

Calculate

the

current.

the

VOM

reading.

VOM

reading

(V)

19.5

current

(A).

ex.

VOM

reading

0.97

;

0.97

19,5

0.0497

(A)

49.7

(mA)

Confirm.that

the

ammeter

reading

within

the

range

given

below,

value

label

}mA

(25°C)

variation

relative

temperature:

0.4

mA/°C

(Current

increases

when

temperature

rises

and

decreases

when

drops.)

the

value

than

the

range

given,

APC

circuit

has

been

defective

the

laser

diode

has

deteriorated,

less,

APC

circuit

FOP

defective.

VOM

(dc

range)

Fig.

VOM

Connection

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