Sony CFD-770L User manual

cFIl-710

SERUICE

MANUAT AEP Model

UK Model

MreABl$S

Model

NameUsing

Similar

Mechanism CDSection cFD-7501t60L

Tape

Section NEW

ODtical

Device

Name KSM-21OBAN

TapeTransport

Mechanism

Type DECKA:MF-770P8-65

DECKB:MF.77ORP.65

oSPECIFICATIONS

Spindlespeed

Errorcorreclion

pla!/er

section

Syslem Compactdiscdigitalaudiosystem

Lâserdiode

properties

Radio

section

Frequency

range

IF FM MWLW

lo.7 MHz 450 kHz

Antennas FM: Telescopic

anlenna,Extemal

ant€nna

MWLW: Builtin ferritebarantenna

Taperecorder section and general

Recordingsystem 4-track2-channel

stereo

Fastwinding

time Approx.140

sec.with SonycassetleC-60

Frequency

response . TYPE | (NORMAL)

cassette:60-13,000

. TYPE ll (CrO2)

cassette:60

- 16,000Hz

Sæaker TwGwayspeakers:Wooter:10cm dia, cons

Po^,eroulput type,Tweeter:

5 cm

Two-wayspeakers:10W + 10W (at4

ohms,315Hz,100/oharmonicdislortion)

- Continuedonnext

page

Material:

GaAlAs

Wavelength78Onm

Emission

duration:Continuous

Lâser

outout: Lessthan 44.6aW'

'This outputis the valuemeasuredat a

distanceof about

200 mm lrom the

objectivelenssurlaceon the optical

pick-up

block.

2oo r.p.m.to 5Oorp.m. (CLu

SonySuperStrategyCrossInterleave

Bead

SolomonCode

Numbsrol channels 2

Frequency

response 20

- 2o,oooHzll dB

Wolvandtlutter Belowmeasurable

limit

Dolby noise reduction manufactured under license from

Oolbv Laboralories

Licensing

Corporatic

"DOLBY" and the double-DsYmbol

00 are

trademarks

Dolbv LaboratoriesLicensing

Corporation.

RADIO

CASSETTE.CORDER

FM LW

AEP,UK

Model 87.4-t

MHz 531-1602

kHz

(9kHz

STEP)

r53-279

kHz

Italian

Model 87.5-108

MHz

SONY

NEF.VOLIAGE

fq'*'*'p;11

J REL^Y

| |

,*ri,

lB 8oARD|

EN!

- ;- | cN606

I Tc suB I

cFD-770L

Inpuls Mixing

microphoneinput

jack

(minijack)

Sensitivity2.5mV

Forlow impedance

microphone

Outputs Headphones

jack (steroo

minijackl

For

16-68 ohmsimpedance

headphones

TwoCD outputjacks(phono

jack)

Loadimpedance10

kilohms-orhigher

Raledoutput0.98V rms at loadimpedance

47 kitohms

Maximumpower

output

10w+10w

Powerrequirements DC 12V,I R20(size

D) batteriesfor CD

radio

casselte-corder

DC ô V 4 RO

(size

AA)battêries

for

clock imer/memorv

AEP,ltalianmodel 220V AC,50Hz

UKmodel 240V AC,

50Hz

Model ldontitication

MODEL

NO,CFD-7701

CD RADIO

CASSETTE-CORDER

Powerconsumption

AEP,ltalian

model 45W

UKmodel 80w

Batterylife Batterieslor radiocassette-corder

Becording Playbâck CDplaying

SonySUM-I(NS) approx.2 H approx.0.5H approx.

0.5H

SonyAlkalineAMI (N) approx.5.5H approx.1.5H approx.1 H

Forclock/timer/memory:

Approx.1 year

Dimensions

Weight

686

x250

x 234 mm (Wh/d)

(271lgx 97/s

x 91/.inshss)

incl.poecting partsand controls

Apprrox.11kg incl.batleries

(Approx.

24 lb 4 oz)

SuppliedaccessoriesAC power

cord (1)

Remote

commander

(1)

Designand specifications

subjectlo changewithoutnotice.

CLASS I LASERPROOUCT

LUOKAN 1 LASERLAITE

KLASS1 LASEFAPPARAT

ThisCompaclDiscplayer

classifiedas a CLASS1

LASER

product.

The CLASS1 LASER

PRODUCTlabelis localed

on the rearexterior.

3-362-604-01:UKmodel

3-362-605-01:ltalian

model

3-363-102-01:

AEPmodel

SAFETY-RELATED COMPONENT WARNING!

coMPoNENTS tDENTtFtEDBy MARK l\ On OOrreo

L|NEW|THMARK a ONTHE

SCHEMATTC

DtacRAMS

AND IN THE PARTS

LIST ARE CRITICAL

TO SAFE

OPERATION. REPLACETHESECOMPONENTS

WITH

SONY PARTS WHOSEPART NUMAERS

APPEAR AS

SHOWNIN THIS MANUAL OR IN SUPPLEMENÎS

PUB.

LISHEDBY SONY.

-2-

cFD-7701

Section Title

Specifications

Model

ldentification

" "

1. SERVIC]NG

NOTES .

2. GENERAL

Parts

ldentification

" "'

Setting

the

Clock

Playing

Discs

VariousDisc

PlaYing

Modes

Using

theBuilt-in

Timer

3. MECHANISM

OPERATION

TABLE OF CONTENTS

Page

sEcTloN

SERVICING

NOTES

Section Title Pege

6. DIAGRAMS

6-1. MainBlockPrinted

Wiring Boards " " " " ' 33

6-2. Main

BlockSchematic

Diagram " """ " 35

6-3. TC BlockSchematic

Diagram " ' " " "' 40

6-4. TC Block

Printed

WiringBoards ' "'''"" 45

6-5. CD

Control

Printed

WiringBoards

"''" "'47

6-6. CDControl

Schematic

Diagram

' "'""''" 49

6-7. Power

BlockSchematic

Diagram

" .'""" 53

6-8. Power

Block Printed

wiring Boards " " " " 57

7. EXPLODEDVIEWS. """""59

8. ELECTRICAL

PARTS

LIST .......,.." 66

4. DISASSEMBLY """" 16

5. ADJUSTMENTS

MechanicalAdjustment """""' 20

ElectricalAdjustment "'""""' 2l

Tape

Recorder

Section

.' """"" 21

Tuner

Section """""'24

Section """""" 26

)-1.

NOTESON HANDLINGÏHE OPTICAL

PICK.

UPBLOCKOR BASE

UNIT

The laser diode in the optical pick-up block may

suffer electrostatic

breakdown

becauseof the poten-

tial difference

generated

by the chargedelectrostatic

load,

etc.on clothingandthehuman

body.

During repair, pay attention to electrostatic

break-

down and also use the procedure in the printed

matterwhichisincluded

in therepair

parts.

The flexible board is easily damaged and should be

handled

with care.

NOTES ON LASER DIODE EMISSIONCHECK

The laser beam on this model is concentrated so

as to be focusedon the discreflectivesurfaceby the

objective lens in the optical pick-up block. There-

fore, when checkingthelaser

diodeemission,

observe

more than 25cm away

from the objectivelens.

cFD-7701

CHUCKPLATE

JIG ON REPAIRING

Onrepairing

CDsection,

playing

adiscwithout

the

CDlid,

use

ChuckPlate

Jig.

o CodenumberofChuckPlate

Jig:X-4918-255-l

NOTE ON REPAIRING

The spindle motor (M703) and the tumtable assembly

individually supplied

asrepairparts.

When repairingM703, please

order the tumtable assembly

together,

Dimension is asfollows.

19.4! 0.1

spindle

motot(M7O3)

LASERDIODE

AND FOCUS

SEARCTI

OPERATION

CHECK

l. Make

Function

switchto CDposition

withnodisc

inserted.

2. Open

the

lidforCD.

3. Tumon

S80lasfollowing

figure.

4. Prcss

) key.

5. Confirmthelaser

diodeemission

whileobserving

the

objecting

lens.Whenthere

isnoemission,

AutoPower

ControlcircuitorOpticalPick-up

isbroken.

Objectivelens

movesupand

down

oncefor thefocus

serarch.

"/'- ^>

lnsen

screwd vet and Push

5801.

laset

diode

cFD-7701

This section is extracted from

instruction manual. SECTION

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