Sony CFD-444L User manual

SERI|ICE
MANIJAL AEP Model
Model
Name
UsingSimilar
Mechanism cF5-3000L
Tape
Transport
Mechanism
TYPe MF-D444-75D
I
SPECIFICATIONS
CD playor
seclion
System Compact
disc
digital
audio
system
Laser
diodeproperlies lvaterial:
GaAlAs
Wavelength:
780nm
Emission
duration:
Conlinuous
Laser
outpul:
Max04
mw *
*Thisoutput is the value
measured
at a distance
of about l.6mm lrom theobiectivelenssurtace
onthe
optical
Pick'up
block
Frequencyresponse 20-20'000Hz1ldB
Radio s€ction
Frequency
range FM: 87.6-1og MHz
MW: 530- l ,605 kHz
LW: 150-285 kHz
SW:
6-18 MHz
Anlennas FM/SW: Telescopic
antenna
MWLW: Builf
inferritebar
antenna
Tage tecold€r sgclion and genetal
Recording
system 4'track2€hannel stereo
i""t *inO-ini ti." Approx.l.smin with Sonycassette
C6O
Frequency
response 80-10
000
H?
Speakers Full-range
speâkers:
tocm dia
' cone
type
Tweeler:2cm
dia.,ceramlc
lYæ
Peak
musicpower outPut
Outputs
Powerrequirements
Power
consumPtron
8atterylile
Batteries Sony
SUM.1
(NS) Sony Alkaline
AM1
FM recording Approx.
12 Approx.
l7
Disc recording Approx.3 Approx.3.5 (hour)
22W(11W+1lW)
Line
input
jacks
(phono
jacks)-2
Sensitivity
0.3V
Input
impedance
47kilohmsor higher
Headphones
jack (stereo
minijack)
For8-32ohms impedance
headphones
CD output jacks (phono
jack)-2
Loadimpedance
l0kilohms or higher
Ratedoutput
1.4V
rms
atloadimpedance
47kilohms
22OV AC, SOHz
DC 12V,8 size
D (R20)
batteries
AC40W
Dimensions
Weight
Supplied
accessory
67
4
\221x 177mm \w
lhldl
(æ%x8%xTinches)
incl. poecting Parts
and controls
6.2k9
(13lb
11oz)
incl.batteraes
AC powercord (1)
TM/MTI'/LVSIï
C
OMPACT
DISG
CASSETTE.GORDER
SONY.

SONY
SERI|ICE
MANIJAL AEP Model
c705 1-130483.00
c711 1-130-483{0
c'112 1-124-963-11
c713 1-r30.48300
(lncorrectl
MYLER O.O1MF
MYLER O.O1MF
ELECT 33MF
MYLER O.Ol IVF
(lncorrectI
none
(lncorrectl
none
50v
50v
16V
50v
lT"s"
461
c795
IP"r"4-1
RS701
F"s-"
48
|
R70'l
lT"r"4tl
(lncorrectl
1-249433-11 (RF
BOARD)...CAR8oN100K5%
RV701 1-237441-11
RV702 1-231442-1'l
(lncorrectl
RES, ADJ, METAL GLAZE
RÊS, ADJ, METAL GLAZE 20K 50K
22K
47K
{Correct}
1-230€95.11 RES, ADJ, MÊTAL GLAZE
1.230.608.11 RES, ADJ, MÊTAL GLAZE
Sony Corporation
Audio Group
CORRECTION-1
File
thiscorrection-1with
theservicemanual.
5%
50Â
20%
5%
À1-532439-21
1
|
4W 1
-249433-1
1
(Correctl
none
none
1-124469-'t1 E
LECT 220MF 20% 6.3V
none
(Correct)
1.102-110-00
CERAMTC
220PF
{Correctl
LINK, IC
(Correctl
(RF
BOARD)...
CARBON22K 5y. 1t4W
Englidt
aaao547-1
Printed
inJapan
@ 1988.
1
9.952-980-91

sEcTroN1
OUTLINE
ThoCFD"444
isa casseilecorder
equip@ wltha FM/AM
luner,
compact
dlscplayer,
andlh€ separato
speakers.
CDplayer
3octlon
. Repeal
play
to rep€at
one
orallthsselecÙons.
. Shuttlo
play
to ptay
theselections
inrandom
order.
o
Program
plây
to play
the
selections
in
adosired
order.
Caseette
decksectlon
o
Synchronlzcd
CDæcodlng stad lyltem
General
. $band
graphlc
equallzer
toadiustthe
tone
quality
to
your
preference.
. Powor
outpul
of 4W+4W (measur€d
attheFTC
regulation)
NOTES
ON HANDLING THE OPTICALPICK.
UP BLOCKOR BASEUNIT
The laser diode in the optical pick-up block may
suffer electrostatic breakdown because
of the poten-
tial difference generatedby the chargedelectrostatic
load,etc.
on clothing
and
thehumanbody.
During repair, pay attention to electrostatic break-
down and also use the procedure in the printed
matter which is included in the repair parts.
The flexible board is easily damaged and should be
handled with care.
SAFETY.RELAlED
COMPONENl
WARNING!
!
COMPONENTS
IOENTIFIED
BY SHADING
AND MARK
7\ orrr rxe scHEMATtc DIAGRAMS AND tN THE
PARTSLIST ARE CRITICAL
TO SAFE OPERATION.
REPLACETHESE COMPONENTS
WITH SONY PARTS
WHOSE
PART NUMBERS
APPEAR
AS SHOWN
IN THIS
MANUAL
OR INSUPPLEMENTS
PUBLISHED
BYSONY.
CAUTION
a use ot controts
or adjustments
or pertormance
ol
proceOures
olherthanthose
specitjed
he.ein
mav
reSull In hazardoL,'s
radialron
erposure
-2-

l"ro\
4t/
Chuck PlateJig for Repair
When repairing the CD section, use the chuck plate
jig in order to play a discwithout usingthe CD cover.
Chuck platejig part No.: X4918-255-l
Chuck platejig component parts:
Noteson SpindleMotor Repairing
Thespindle
motor (M702)
usedin thissetis pressed
into turntableassy,but the repair
parts
âre
suppûed
separately.
rfihen
replacing,order
bothturntableassyandspindle
motor.
Theinstallationdimension
isasshown
below.
19.4x0.
I mm
TABLE OF CONTENTS
Title
Section
Specifications
Features
Noteson Handling The Optical Pick-up
Block or BaseUnit
Chuck Plate Jig for Repair
Noteson SpindleMotor Repairing
Location and Function of Controls
ServiceMode(serviceprogram). . . . .
Notes
onLaserDiodeEmission
Check .......
1. BLOCK DIAGRAMS
Page
I
+
q
I
2
2
J
4
6
7
8
9
l-l. Radio/RecorderSection
1-2. CDSection
2. DTSASSEMBLY ....11
3. ADJUSTMENTS
3-l . Mechanical
Adjustments
3-2. Electrical Adjustments
AM Section
FM Section
RecorderSection .
CD Section
Reference
4. DIAGRAMS
4-1. Radio/Recorder Section
Mounting Diagram
4-2. Radio/Recorder Section
Schematic
Diagram
4-3. CD Section MountingDiagram
4-4. CD Section Schematic Diagram
4-5. IC Block Diagrams
EXPLODED
VIEWS
AND
PARTSLIST .....36
ELECTRICAL
PARTS
LIST......... 42
l3
l4
14
l5
t7
l8
2l
z5
25
28
JI
5.
6.
Troubleshootion
Guide
.. ........ 50

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o
o
o

cFD-444L IPage
29,
30 | 17 ,correcred porrion

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cFD-444L
23
22
21
Fati
Notr:
. Atl capacitors
are in tlF unlessotherwisenoted. pFt rjpF
50WV or lessare not indicated except for electrolytica
and tantalums.
All resistorsare in O and %W or less
unle$ otherwise
soecified.
- i B+ bus.
f: : adjustment
tor repair.
Vollages
are dc wilh respect to ground
unlessolherwise
L/u
U L .*', noted.
o Readings are taken under service mode with a VOM
(50
kç}/v).
no mark
: STOP
( ):
PLAY
. Voltagevariat;ons
may be noted due to nofmal
produc
lton tolerances.
Waveformsaretakento ground
in service
oscilloscope.
Voltagevariôtions
may be noted dueto
tio
n tolerance_
S : CD signal
path
mooe Dy usrn!]
norma i proouc
Yzav---o
1;.1:'':-*E'
c302
cxP502aH0270
?BnArsa
n PAUST
sÊrR,cH
sroP
iErArn/Ex1€R
aiiF;iiTtS
*,9.L,,"e
Switch
R€f. No, Swilch P6ition
s602
s701
s801
s802
s803
s804
s805
s806
s807
s808
s809
s810
MD pause
LIMITIN
l<<
>>l
REMAIN/ENTÉR
REPEAT 1/ALL
SHUFFLE/RMS
I>/aa
CD HOLDER
OFF
OFF
OFF
UFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
",/)'^""".,
-6-