Sony MEGA BASS CFD-DW83 Manuale utente

SERI|ICE

MANIJAL AEP Model

UK Model

E Model

Photo:

AEP

model n reABll$s

SPECIFICATIONS

player

sectlon

Syslom Compâct

dlsc

dlgltal

audlo

system

Laser

diode

prooerties

Material:

GaAlAs

Wavolength:

780nm

Emission

duration:

Conllnuous

Laser

outout:

Less

than44.6

rrW'

'This output

is thevalue

msasursd

at a

distance

of about

200mmfiom the

objective

lenssurtacs

on lhe opticâl

pick-up

block

2OOr.p.m:

to 500r.P.m.

(CLV)

Sony

Super

Strategy

Cross

Intarlsavê

Bead

Solomon

Corde

- 20,000

Hzli dB

Below

maasurable

limit

. Toral

withTYPE

| (NORMAL)cassette:

- '10,000

. Playback

with

TYPE| (NOBMAL)

cassatte:

- 12,000

Fullrangespeakers:

10cm dia.,

Super

wooler:

I cm dia.

Full-range

speakers:

2.5W + 2.5

W (at6

ohms,

315Hz, 100/oharmonic

distortion)

Super

wooter:

7 W (at6 ohms,100Hz'

10o/oharmonic

disiortion)

Mixing

microphono

input

jack(minijack)

sensitivity

2.5 mv

Forlow impedance

microphone

Twolineinput

jacks

(Phono

jacks)

Sensitivity

0.3V

Input

impedance

47 kilohms

or higher

Headphones

jack(stereominiiack)

For16

- 68 ohmsimpedance

headohones

TwoCD output

iacks

(Phono

jack)

Load

impedance

10kilohms

or higher

Ratedoutput

.26

V rmsat load

imDedance

47 kilohms

- Continued on next Page

Frequency

response

Speaker

Power

outpul

Inputs

Outpuls

Spindle

speed

Error

correction

Number

of channels

Frequency

response

Wowandllutter

Radio

section

Frequency

range

Antennas FM:

Telescopic

antenna

AM: Built'in

lerrite

barantenna

Tape recorder

sectlonand general

Recording

system 4-track

2-channel

stereo

Fastwinding

time Approx.

2 min withSony

casselte

C60 CD

RADIO

CASSETTE.CORDER

Model

NameUsing

Similar

Mechanism

CDSection NEW

Tape

Section NEW

9q{"3r_D_"1'j:

f3T_"_

Tape

Transport

Mechanism

Type

KSM-150BGN

-oEcr

À-

mr--ôwæPBbt

DECKB MF.DW83RP.62

Sales

areâ FM AM

AEP, UK model 87.ô

- 107

MHz 531

- 1602

kHz

Itâlian model 87.5

- 108

MHz 526.5

- 1606.5

kHz

Saudi

Arabia model 87.6

- 107MHz 530

- 'l605

kHz

E model 87.6

- 108

MHz

EF]

lMlcRoFlLM

ISONY

Powerrequirements 12VOC,

oight

R20

(slzo

O)bettorles

torCDradlocasselte.corder

4.5V

DC,thre6R6

(slze

AA)batteries

for

clocUtlmer

Batt€rylife Batt€risstor radio cassolte-corder

636.5

x211

x226 mm (w/h/d)

(25!/rx${sx9;ns6q5;

incl. poôcting parts and controls

Approx. 8.3 kg, incl. battories

(Approx. 18 lb 4.8 oz)

AC poworcord (1)

Specifications

TABLEOF CONTENTS

Title

SERVICING

NOTES

ModelIdentification

NotesonHandling

theOpticalPick-up

Blockor BaseUûit

ChuckPlate

Jigon Repairing

GENERAL

Location

andFunctionof Controls . . . . .

Section Page

Dimensions

Wsight

Suppliedaccsssory

Note

This appliancsconlorms with EEC Diroctivos761889

end O2l499

rsgardinginlerfsrsnce

suppression.

Designând spsciticationssubject

lo changowithout

notice.

SAFÊTY.RELATED

COMPONENT

WARNING!

COMPC'NENTS

IDENTIFIEDBY MARK A ON OOTTEO

LrNÊW|TH

MARK a ONrHE SCHEMAÏC

DTAGFAMS

AND IN THE PARTS LIST ARE CRITICAL TO SAFE

OPERATION. REPLACE

THESE COMPONENTS

WITH

SONY PARTS WHOSEPART NUMBERS

APPEAR AS

SHOWNIN ÎHIS MANUAL OR tN SUPPLEMENTS

PUB.

LISHED BY SONY.

Settingthe Clock

Usingthe Built-in Timer

3. DISASSEMBLY

4. ADJUSTMENTS

4-1. Mechanical

Adjustment ...... l0

4-2. Electrical

Adjustments ....... 11

Tape

Recorder

Section. ..... 11

Radio

Section .....12

CDSection .......14

5. DIAGRAMS

5-1. Radio,

Audio Section

Block Diagram ....

5-2. CD SectionBlock Diagram

5-3. Radio SectionPdnted Wiring Boardsand

Schematic Diagram

5-4, Tape RecorderSection

SchematicDiagram ......... 27

5-5. Power

Amp,Power

SupplySection

SchematicDiagram ......... 30

5-6. Tape

Recorder,Power

Amp,Power

Supply

SectionPdntedWiringBoards.

. . . . . . . . 33

5-7. CDSection

SchematicDiagram

......., 37

5-8. CDSectionPrinted

Wtuing

Board

. . . . . . . 4l

6. EXPLODEDVTEWS. .......46

7. ELECTRICAL

PARTS

LIST......... 56

Requirem€nts

UK model 240VAC.

50Hz

AEP model 220VAC.50Hz

Emodel 110-120V,

220-240VAC,

ad,iusrâbl€,

50/60H2

Power

consumptlon

UK model 30w

AEP model 28W

E model 35W

Recording Playback CD playing

SonySUM-I

(NS) approx.2.5H âpprox.2H approx.lH

SonyAlkaline

AMl (N) approx.

3.5H approx.

3H approx.I.5H

-2-

sEcTtoN

SERVICING

NOTES

MODEL

IDENTIFICATION

UK model

AC: 240V-50H2 30W

E SaudiArabianmodel

AC: 110

- 12O,/22O

- 240V-5O,/60H2

35W

CAUÏION

Use

of controlsor adjuslmenlsor performance

of procedures

other than thosespecifiedherein

may resultin hazardousradiation

exposure.

NOTES

ON HANDLING

THE OPTICAL

PICK-

UPBLOCKOR BASEUNIT

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 clothingand

thehuman

body.

During repair, pay attention to electrostatic

break-

down and also use the procedure in the printed

matterwhlch

tsincluded

the

repair

parts.

The flexible board is easily

damaged

and shouldbe

handled

with care.

NOTES ON LASER DIODE EMISSION

CHECK

The laserbeam on this model is concentrated

as to be focused

on the disc

reflective

surlace

by thc

obJective

lens in the optical pick-up block. There-

fore, when checking

thelaser

diodeemission.

observe

than

25cmawayfrom

theobjective

lens.

LASER DIODE AND FOCUS SEARCH

OPERATION CHECK

I. Turn POWER switch on with no disc

insertedand

makeFunction

switch

to CD position.

2. Openthelid for CD.

3. Turn on S702 asfollowing figure.

4. Press

) key.

5. Confirm the laser diode emissionwhile observing

the objecting lens. When there is no emission,

Auto Power Control circuit or Optical Pick-up is

broken.

Objective lens moves up and down three times for

the focussearch.

Turn on S7O2with

a slenderscrewdriver.

MODEL

NO.CFD-DW83

RADIO

CASSETTE.CORDER

12V

-_ FLASHLIGHI

BATTERY

R2O

SIZEDX8 OR EOUIVALENT

4.5V

:_ FLASHLIGHT

BATTERY

(COMPUTER//CLOCK)

R6 SIZE

AAX3 OR EOUIVALENT

MADEIN JAPAN

AEPmodel

AC: 220V-50H2 2B\N

-3-

CHUCK

PLATEJtG ON REPAIRING

On repairing CD section, playing a disc without the

CD lid, useChuck Plate

Jig.

. Code

number

of Chuck

PlateJig:

X-4918-255-l

NOTE ON REPAIRING

The spindle

motor (M702) and

theturntable

assem-

bly are

individually

supplied

repair

parts.

When repalringM702, please

order the turntable

assembly

together.

Dimension

isas

follows.

i9.410.lmm

spindle

molor (M7O2)

-4-

CFD-DW83

Ëe

;E T

>;- - ='

Eg:ËE

E;:ii

c g

i:ë

Elg'e

;EiËE

+ËieF

eËE'i

iË!-EÊ

€F

Eç

Ëst

.ç

a-E;;

=P *

-f

o Adt

eË Ia

âo =d

Ef "3Êà: E2z

EË E=E=

ag à.:

èË

ËË=Ëg*È

ÊËliE fi

=ù B Èôtr à

'.F,9

El/^r

st p

9E rr 1

oË Y

ô9 3l

:-g i I

2nt

=Ê

{ ---r-

E ,Ë:àl

HIF

EË -;';

-tP

È;

ô^

gË t

tÈ

çÈ

;

Ë:

êE

ÈË è

'EE"E

c> I :

Ë8È:

r3ÉE

<ir ç !r,

3cÈâ

E= 5

ËF

-:_ P

:8aË

Ë E€ g

ç tË *

Ën!isE

E F...!:sg

ËË!iiiiÏi

8.9 a

F=Ë

lÈ sE

h :r =È

; :g ;r

:;sÈËunË

.Eo'fi'?^

u-l = ^ r ^ i I

, 96

s ià

9 E;

s fÈ e

ËB Ë

ÊE:

!e €

rts

tÉl

I Ol

t6l

I!,I

l.')l

tol

tql

tot

tclj

sEcTtoN

GENERAL

;.o

-o

;

9 >9

Ë B€

ËaÉ!

> R(,)€

ËÈ?ÈgÈ

Ë;ËËEgË

o.g ô

Ez Âa

Ë "

gË

. : ç e

à€

a 6 :;:€à

! T HèJ;t

â Ë êEEÈE-

s t Ê:Ë$s*

3;E

sËËËËË'

g slËËËPrFE

i 42;EP-

ë;

È 3i'ââai33

È;

9eE

!Je

FEË

E:E

Ex*È*

,:e

Ë!

ËË

Èi

'6E

Ëg

Èts

^ Y=

c9;ii

; tàêa

;;;rvo

è9

aâ

-n>

ht: è9

t:J :i ==

tLq '' È€

r.sr p È

-5-

4.2. ELECTRICAL

ADJUSTMENTS

TAPE RECORDER

SECTION

PRECAUTION

l. Adjustments should be performed in the order

given.

Generally playback circuit adjustments should be

completed before performing recording circuit

adjustments.

2. Adjustments should be performed for both L ch

and R-ch.

Switches and controls should be set as follows

unless

otherwisesPecified.

a Positionsof switches

and control knobs

FUNCTION ....... TAPE

ISS ... .....2

DIRECTION

MODE,. .... ?

GRAPHTC

EQUALIZER... ' mechanical

center

MEGA BASS . . scale5

BALANCE . mechanical

center

odB- 0.775V

Frequency difference between FWD and REV should be within

r.5%.

Adiusimont Localion: TC board

Short-circuil with

a screwdriver

for the

highspeedadjustment.

ad-

the

CNP121_L

TÏ

,uilZ

o'c*

Eyi33i

ii?;idt</

n.n, o I RV308 (normal)

"-''' " I RV309 (hish)

Tope

speed

Adlustment

FEEK Al TDFCK

Procedure:

Mode : FWD playback

test

tape

ws-48A

kH2.0dB)

Perform high speed

iustment

Play back the test

specifications

below.

Adiustm€nt

Valuer

speed

checker

32l? trequency

counter

PHONES

jack

adjustment before mormal speed

tape WS48A and adjust to meet

speod deck Adiustmenl

pan t€st

cN121

speedchscker

heading

frrquancy

counlea

reading

high RV307 short 4.17to

+O.l'77"

6,000t

10Hz

BRV3O9

normal RV306 open -0.1'7

+O.l'l% 3,000t5

BRV308

a Standa

rd input level

Input Pin Mtx Mlc LINE

Signalsource

imPcdance 300

n10kn

lnput signallevel 0.775

(-60 dB) 0.436

(-5 dB)

Frequency I kHz IkHz

a Standard

output level

Outpul Pin SP OUT (L.R} PHONES

Signal

source

impedance 6s} 32n

Output signâl

level 0.775

(0dB) 0.245

(- 10

dB)

. Test

tape

T6st Tapo Signâl Usedfor

ws48A 3kHz,

0dB Tape speedadjustment

P4-A063 6.3

kHz,

-10

dB Headazimuth adiustment

Record,/Playback Head Azimuth Adjustment

lpFcK

Al l-pFcK

Procodure:

l. Mode: FWD playback

testtape

P4-A063

(6.3

kHz,

-10

dB)

RADIO SECTION

See

page

13for AdjustmentLocation.

FUNCTIONswtich: RADIO

IAM]

BANDswitch:AM

RFSSG Put th6 lêad-wirs

antenna closg to

ths sst.

pHONES

iack

Turn the adjustmentscrew for the maximum output

levels.If theselevelsdo not match, turn the adjustment IFM]

30% amplitud€

modulation by

400 Hz signal

Output level:

aslow as

Possible

BANDswitch: FM

22.5 kHz lr€quency

dsviâlion by 400 Hz

srgnal

Output level:

low as

possible

CN3

(ANT

IN)

. Rcpcat thc procedurc3 in cach adjustmcnt

severaltime3,and thc frcqucncy covcragcand

lrackinS

adjustmcntsshould

bc finallydoncby

thètrimmer

câpacitors.

3. Phase Check

Mode : playback

lesÎ lape

P-4.AO63

(6.3

kHz,

-10

dB)- _

LCH

Screon

pattorn

e@@os

In ph.. 46. 90. r36c t8O.

good vaonS

4. Set in the REv mode

and repectthe slep I to

5. After the adjustment,

lock the screws with locking

compound,

Adjustmsnt Locltion : Record,/Playback head

AM RF SSG

o6cillo6copa

PHONES

jack

PHONES

jack

AM FREOUENCYCOVERAGEADJUSTMENT

Adjust for a maximum readina on VTVlvl

T1 Ercept ltaliatr: 518 kHz

Italiar | 516 kHz

cT14 Except Italian : 1,680kHz

Italian: 1,630kHz

AM TRACKINGADJUSTMENT

Adiust for a maximum readins on VTVI\4

620 kHz

cT1-3 1.400 KHz

FM FREOUENCYCOVERAGE

ADJUSTMENT

Adjust for a maximum reading on VTVIVL

L2 E : 86.5 MHz

AEP, UK, Italian, Saudi Arabia: 87.35 MHz

ctt2 E : 109.5MHz

AEP.

ItK, SâudiArabia: 107.8MHz

Italian: 108.25MHz

FM TRACKINGADJUSTMENT

Adjust for a maximum readirg on VTVlvl

L1 E : 86.5 MHz

AXP, IrK, Italian, Saudi Arabia: 87.35 MHz

cT1-1 E : 109.5 MHz

AEP. IIK. Saudi Arabia: 10?.8 MHz

Italian : LO8.25M}Iz

oIFM VCO ADJUSTMENTI

Procaduro:

FM NF SSG

0.AOl

pF rctoin@

C.rrirr Frcqurncy: Accordingto the color of the mark on

ceramic

filter (CF2).

Output L!v.l: 80 - 90dB

1) Adjust with RV1 so that the readingon the frequency

counter

becomes?6.0

t0.3 kHz.

IAdjustments

Location]

Adiustment Locationl

IRsdio Boârdl

AM TrackingAdiudmont

cT1.3

L1 cTl.1

FM Trrckino Adiunment

Frequency

Covrraga

Adiunm.ni [crt-z

tLz-

isas:i

M.rk Crraiar Frtquancy

red 10.7 MHz

blue 10.6?MHz

orange 10.73

MHz

black 10.64MHz

white 10.76MHz

-13-

lîosecrroNI

NotesonAdjustment

l Performadjustmentin servicemode.

After adjustment,be sure to releaseservice

mode.

Perform

adjustments

in theorder

given.

Usethedisc

(YEDS-I

8,PartNo.3-702-10l

-Ol

)

only when

indicated.

BeforeAdjustment

Put the set into servicemode and perform the

followingchecks,Repairif there

are

any

problems.

o Sled

MotorCheck

1 Press

) key-+1 ç"t.

2. PresslN,

K{ keysand confirmthat tlre'FOP

moves

smoothlyfrom the innermost

to outer-

most circumference

and back smoothly and

with no catching

orabnormalnoises.

>> : FOP

movesto theoutercircumference

l( : FOPmovesto theinnercircumference

. Focus

SearchCheck

l. Press

) key. (Focus

searchoperationis per-

formed

continuously.)

2. Look at the FOP objective

lens

and confirm

that it movesup anddownsmoothly,with no

catchingor abnormalnoises.

3. Press'I key.

Confirmthat focussearchoperationstops.If it

doesnot,pressI keyagainlonger,

Howto Put

the

SetintoServicêMode

l. Short-circuit

following

portions

onthe

CDcontrol

board.

2. Turnthe

POWER

on.

VCO

Adjustment

Adjustm€nt Procedure:

l. Short-cfcuit@ portionon CD mainboard.

2. Adjust with RV703 so that the readingon

frequency

counter

becomes4.3218MHz.

3. Releasetheshort-circuit

@ portion.

Adjustment Location: ICD

Main

Boardl

frequency counter

-14-

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