Sony CFD-770L User manual

cFIl-710
1
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
CO
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
Hz
. 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
n.
"DOLBY" and the double-DsYmbol
00 are
trademarks
o{
Dolbv LaboratoriesLicensing
Corporation.
CD
RADIO
CASSETTE.CORDER
FM LW
AEP,UK
Model 87.4-t
07
MHz 531-1602
kHz
(9kHz
STEP)
r53-279
kHz
Italian
Model 87.5-108
MHz
SONY

NEF.VOLIAGE
fq'*'*'p;11
I
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 is
classifiedas a CLASS1
LASER
product.
The CLASS1 LASER
PRODUCTlabelis localed
on the rearexterior.
I
I
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
I
2
3
5
7
8
9
l0
12
sEcTloN
1
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
CD
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
mm
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.
!
il
laset
diode

cFD-7701
This section is extracted from
instruction manual. SECTION
2
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