Sony Cfd 8 Service Manual

							CFD-V8
21
21
6-8. SCHEMATIC DIAGRAMS – MAIN SECTION (3/3) –      • Refer to page 13 for IC Pin Function Description.
IC801
R801 C802
C851 R851
C841
C842 C843C844
KH801 R805
R810
R812
R813
R814
R815
R816 C810
R811
R809
CN801
CN802
S801 C805
Q801
C891 R819
R818
R806
C801
22
47
10V
22p 4.7k
0.1
0.1 0.10.1
2P 220k
100
1k
1k
1k
100
100 100p
10k
1k
16P
15P
CD DOOR
(OPEN/CLOSE) 0.1
KRC404-RTKRESET
1000p 100
100
220
CD DATAOUT
CD DATA IN
GFS
FOK
XLAT CLK
CD-RESET VPP
SQSO,ETC
S0
S1
S2
S3
S4
L-OUT
P.GND R-OUT
CD 6V
AU MUTE TU-GND
UCOM-GND TU +BD.GND
CD 3.3V *(TEST MODE)
SYSTEM CONTROL LCD DRIVER
PROCESSOR
DIGITAL SIGNAL
CND,AUS,TW,IT
AEP,UK,CET,KR,SP
*
C801
0.1
0.01
CND,AUS,TW,IT
(Page 23)
2
(Page 24) (Page 20)
Ver  1.2 
						

							22
22
CFD-V8
6-9. PRINTED WIRING BOARDS – CONTROL/POWER SECTION –    z Refer to page 14 for Circuit Boards Location.
Note:
• X : parts extracted from the component side.
• : Pattern from the side which enables seeing.
 D901 F-7
 D902 E-7
 D903 F-6
 D904 E-6
 IC301 B-3
 Q301 C-3
 Q303 C-2
Ref. No. Location
z Semiconductor
   Location
234567891
A
B
C
D
E
F
BATT(R)  BOARDBATT(L) BOARD
L-CH
R-CH
HP901
ERASE HEAD HRP901
RECORD/PLAY BACK HEAD
D
MAIN BOARDCNP305
(Page 18)
PRE BOARD
-1 -2
11
(11)1-861-502-
S403 l
S405
PLAY MODE
S401 s
S4047
S402L
CONTROL BOARD
 
 
 
 
B
MAIN BOARDCN801
(Page 18)
LCD401
LIQUID  CRYSTAL DISPLAY
S406
ENTER
11
(11)1-861-371-
T901
POWER TRANSFORMER
POWER BOARD
11
(11)1-861-376-
11
(11)
1-861-377-
CNJ901
- AC IN
INLET BOARD
C
11
(11)
1-861-373-
CNP908
11
(11)1-861-374- DRY BATTERY
SIZE D
(IEC DESIGNATION R20) 6PCS, 9V
S301
PBr
REC
MAIN BOARD KH902
(Page 18)
CN401
R421 R422R423R424
   
 
 
 
JW336
JW337
CNB907 JW338
JW339C905
R901C901
C903
 
        
KH901CNP902
D904
D902
D901 D903
CNP907
 
F901
KH904
 
R308C305
C306
R306
Q301
C307JC303
R205
R302
JC301
R303R211
R315 R314
R305
R203C203R204
R106
C205
R201
R206
R101
C105
R301
R111JC302R105
R304
R309R104C103R103
R102R110C104
C107
C101
C201
C207
C204R202
R210
R307
T301
C102
C302
C202
C301
C106
IC301
C303
CNP303C206
C304
S301
 : Uses unleaded solder. 
						

							CFD-V8
23
23
6-10. SCHEMATIC DIAGRAMS – CONTROL/POWER SECTION –
R203
C204
C202 R202
C201
C207
R201
C302
C203
C205
R204
C105
R101
C107 C101
R110 R104
R103
R102
C102
C104 R301
C301
IC301
JC302 C106
C206
R309
R205
R302
JC301R303 JC303
R304
R105
R307
C307
C304
C306
R308 R306
D901
D904 D903
D902
C901
C903
KH904
KH901
CNP907
C905
CNJ901
CNP902 R901
T901 S402
S406
S404
S405
S401
S403
CN401
F901
T301
R206
R210 R421
R422
R423
R424
C103
R211
R111
R106
R305 R315
R314
CNP908
Q301
C303
CNP303
C305 68k
0.0022
47
10V 68
1000p
470p
15k
100
10V
0.04747p
2.2k
47p
15k
470p 1000p
100 2.2k
68k
68
47
10V
0.0022 1M
100
10V
TA2068N
0 1
50V
1
50V
47
15k
4.7k
0
4.7k 0
1k
15k
10
0.0022
47
10V
0.01
22k 6.8k
1N4002B
1N4002B 1N4002B
1N4002B
0.022
0.022
2P
2P
3P
0.022
4P 2.2k 16P
BIAS COIL 2.2k
100 4.7k
4.7k
4.7k
4.7k
0.047
4.7k
4.7k
2.2k
470 470
470
2SC1623
BIAS OSC 470
10V 10P
470p
*
3.15A/250V
T2.5AL/250V *
F901
-1
-2
CND,TW
CET,IT,KR,SP AEP,UK,AUS,
(Page 21)
(Page 20)
(Page 20)
V er  1.2 
						

							24
24
CFD-V8
6-11. SCHEMATIC DIAGRAMS – CD SECTION –
R
721
R718 R
717
R716
C727
C723
C722
C720
C721
C725
C724
C726
R
722
R719
R720
C731
R710
R709
C703
C704 R708
R711 C705
C743
C734
C736 JC703
C706C707C708
IC702 R743R744
JC702
JC701
R712
C702
C701
C751
C733
CNP701
R706R705
R
704
R703
R702 R701
S
701 C744
C
747
C745
R729R730
R
728
R 727
C730
C728C729
R726
R725
R731
C717JC704
C716
C711 R715
R714
C735 C754C755
C740
C741 C709
R741 R723
R724
C732
C750 C742 CNP702
R 707
Q701
FB701L706
X701
IC701
C746
C738 C739 1k
1k 1k
1k
1000p
0.01
22p
22p
22p
1000p
22p
1000p
100
100
100
0.047
4.7k
22k
0.1
22p 10k
330 4700p
0.1
4700p
4700p 0
150V
1 100p
BA6998FP-E2 6.8k100k
0
0
100
47
10V
1000p
0.1
100
10V
16P
47k15k
15k 15k
15k 47k 0.1
100
10V 0.1
2201k
10k
2.2k
0.1
0.0471
680
680
2.2k
0.01220
0.01
0.01 150
150
1000 6.3V 0.010.01
470
10V
0.1 0.1
6.8k 100
47k
100
10V
100
10V 0.1 15P
10
KTN2907A S-RTK
O0
33.86M
Hz
LC78645NEUE
100
10V
0.1 0.1
(Page 21) 
						

							25
CFD-V8
Note:
•X : parts extracted from the component side.
• : Pattern from the side which enables seeing.
•
f: internal component.
 IC701 D-2
 IC702 A-3
 Q701 B-2
Ref. No. Location
z Semiconductor
   Location
2341
A
B
C
D
E
11
(11)
1-861-503- M702
SLED MOTOR
M
1
2 5
1015
16
CD BOARD
OPTICAL PICK-UP BLOCK
KSS-213C
M701
SPINDLE MOTOR
M
S701
(LIMIT)
A
MAIN
BOARD
(Page 18)IC701
Q701
IC702
 
 
 
 
 
 
 
C729
C730
R730
R728
R729
C704
R708
C728
R724
R722 R725
R726
R707
C701
C726C723
C725C724
R719
R717
R718
R716
C720
C721
C722
R731
R721
R720
C716
R715R714
C727 C711
C709 FB701
C736
C734
R709
C705
R704
R702
R711
R710
R703 R705R701C703
TP
(RF) C731R706
R727
R712
R723C708
R741
JC701R744
R743
 
 
 
   
C751
JC702
JC703 
C743
C744 C745
C742
  
C754
C755
 
C741
JC704
C707
   
 
 
 
L706
 
 
 
   
 
C717
 
 
 
C739 C738
 
 
C732 CNP701
X701
CNP702
C702
JW701
JW702
JW703
JW705
JW706
JW707 JW708
JW709
JW713
JW714
JW715
JW716
JW717JW718
JW721
JW722
JW723
JW725
JW728
JW730
C740
C750
C746C747 JW719
C735
 
JW720
JW711
C733
C706 JW712
JW710
 
6-12. PRINTED WIRING BOARD – CD SECTION –
          
z REFER TO PAGE 14 FOR CIRCUIT BOARDS LOCATION.  : USES UNLEADED SOLDER. 
						

							26
CFD-V8
•Waveforms
Note on Schematic Diagram:
• All capacitors are in  µF unless otherwise noted.  pF:  µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in  Ω and 
1/4
 W or less unless otherwise
specified.
•
f: internal component.
• A : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
•V oltage and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM (RADIO SECTION),   TAPE PLAY (TAPE SECTION)
() : AM (RADIO SECTION),
  REC (TAPE SECTION)
•V oltages are taken with a VOM (Input impedance 10 M Ω).
V oltage variations may be noted due to normal produc-
tion tolerances.
•W aveforms are taken with a oscilloscope.
V oltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F : FM
f : AM
E : PB
a : REC
J : CD
• Abbreviation
CND   : Canadian
CET : East European & Russian
SP : Singapore
AUS : Australian
TW : Taiwan
KR : Korean
1
2
Q301    C
T301VOLT/DIV : 1 V AC
TIME/DIV : 5  µsec
VOLT/DIV : 1 V AC (ATT : 1/10)
TIME/DIV : 5  µsec
– CONTROL/POWER SECTION –
3.1Vp-p
17.95  µsec
30Vp-p
17.95  µsec
– CD SECTION –
1
IC701    4
RF
2
VOLT/DIV : 0.5 V AC
TIME/DIV : 0.5  µsec
IC701    rk
XOUTVOLT/DIV : 0.5 V AC
TIME/DIV : 0.2  µsec
0.7–1.0Vp-p
(LPC ON)
1.1Vp-p
29.53nsec
3
IC701    qd
(FE)
4
VOLT/DIV : 0.5 V AC
TIME/DIV : 1 msec
IC701    qg
(TE)VOLT/DIV : 0.5 V AC
TIME/DIV :1 msec
0.6Vp-p
0.6Vp-p
(PLAY MODE)
(PLAY MODE)
Note:
The components identi- fied by mark  0 or dotted
line with mark  0 are criti-
cal for safety.
Replace only with part number specified. Note:
Les composants identifiés par
une marque 
0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
V er 1.1 
						

							27
CFD-V8
• IC BLOCK DIAGRAMS  –MAIN SECTION–
IC1   TA2111N
IC301   TA2068N
AM RF IN
FM RF OUT FM RF IN
RF GND
AM LOW-CUT
FM/AM
MIX OUT
AGC
VCC
AM IF IN
FM IF IN
GND
TUN LED
ST LED
QUADFM OSC
AM OSC
AFC
DET OUT
MPX IN
LPF2
LPF1
L-OUT
R-OUT
754312689121011
14151617181921202423
RF VCC
2213
DECODER
VCO
DIVIDER
ST/MONO
FM/AM
AF
AMP
FM
MUTE
AF BUFFER
FM
DETAM
DET
AM
RF AMP
FM
RF AMPFM
MIX
FM
OSCAM
OSC
AM
MIX
TUN
LEDST
LEDFM IF
AMPAM IF
AMPAGC
LEVEL
DET
21222324
235467891011112
1314151617181920
LOGIC
7dB
26dB 26dB7dB
ALC1ALC2
DET
MIC
AMP1
1k
10k NAB
AMP2 NAB
AMP1ON MUTE
MUTE
MUTE
BUF    AMP
A2 BUF    AMP
A1BUF    AMP
B1BUF    AMP
B2
TAPE
TAPE –––––TAPE –––––
LINERADIO
10k 10k
10k1k 1k
10k
10k
10k
10k10k10k
10k10k 10k 10k
15k6k1k
6k
LINE
RADOI
TAPE
REC
AMP1REC
AMP2
REF         AMP2.1
ONON
MONITOR
AMPMONITOR
AMP
L. LIN
MIC
I/EX
L. RAD
L. LO REC
TAPE
R. LIN
MIC
IN R. LO
LINE
R. RADVCC
MIC
NF R. POR. NF R. ROR. INGNDREF L. IN L. ROL. NF L. POAGC
• IC BLOCK DIAGRAMS  –CONTROL/POWER SECTION– 
						

							28
CFD-V8
IC701   LC78645NE-U-E
1
APCPLL
VCECGATEGATE
GENERAL-
PURPOSE
PORTSDRF
SLICE
LEVEL
CONTROL
MIXEQAGC
LPFPH
BH
TBAL
LEVEL SET
LPF
SW
MONI
CONT
JITTER
DETECT
A/DSERVO
PROCESSOR
RAM
AUTO
ADJUST
FRAME SYNC DETECT,
PROTECT INSERT,
EFM DECODE
TRACK
JUMP
SWD/A
COMMAND
INTERFACE
8FS
DIGITAL
FILTER
1BIT
DAC
SUBCODE
DECODE CRC
CLV, CAV
CONTROLMONITOR
SIGNAL
SELECTORAUDIO
OUT
CLOCK
GENERATOR
ERROR
CORRECTION
AUDIO CD
C1-1, C2-2RAM
SERIAL
OUT
EXTERNAL
AUDIO IN
23
456
7
8
9
+
–
+
–
+
–
+
–
+
–
10
13
12
11
+
+ –
+
+ –TBAL
1415
16
17
1819
20
LPF
S/H
21222324
+–
+–
+–
252627282930
8079787776757473727170
RUPTURE
DEFECT
323334353631
PCK
LPF
INTERPOLATION
MUTE
ATTENUATION
DEEMPHASIS
696867656463626166
37383940
605958
575655
5352
54
5150
494847
464544
434241
SLCO
SLCIST
EFMIN
RF
RFVDD
RFVSS
FIN1
FIN2
TIN1
TIN2
VREF
REFI
FE
TEC
TE
RFMON
JITTC
ADAVDD
ADAVSS
TDO
FDO
SPDO
SLDO
GPDAC
CONT4
CONT5
SBCK/CONT6
SBCK/FG
DEFECT
MONI1
MONI2
MONI3
MONI4
MONI5
(3.3V)VSS
VDD
DOUTCL
CE FSEQ
TEST*RES
*WRQ
DO
DI VSS
VDD5VCONT1
DRF CONT2
CONT3PCKIST
VVSS
PD02
PD01 LDD
LDS
FR
VVDD
V/*P
LVSS LCHO
LVSS RVSS RCHORVSS XVDD XOUTXIN FSX/16MIN XVSS16MOUT ASLRCK ASDACKASDFIN  LRSY DATACKDATA
C2F EFLG
• IC BLOCK DIAGRAMS  –CD SECTION– 
						

							29
CFD-V8
IC702   BA6998FP-E2
6
5
LATCH
VOUT NCVH
DET
VL
DET
7TC
8VCC
3
4
2
1
GNDVMNC CONT
VCC
–
+
VCC
2827262524232221201918171615
LEVEL
SHIFT
–
+
VCC
LEVEL
SHIFT
+
–
123567891011121314
LEVEL
SHIFT
+
–
+
–
DRIVE
BUFFER
DRIVE
BUFFERDRIVE
BUFFER DRIVE
BUFFER
REGULATOR VOLTAGE DETECT,
BIAS VOLTAGE DETECT,
THERMAL SHUT DOWN
4
–
+
DRIVER
MUTING
GND
T +
T –
TIN
NC
VREFI
VCC
VCC
NC
SLIN
SL +
SL –
VREF
SPI F –
F +
FIN
RESET
REG-B
REGOUT
MUTE
GND
SPIN
NC
SP –
     SP +
GND
SPOUT
LEVEL
SHIFT
IC401   MM1468XD • IC BLOCK DIAGRAMS  –MAIN SECTION– 
						

							30
CFD-V8SECTION 7
EXPLODED VIEWS
NOTE :
• -XX,  -X mean standardized parts, so they
may have some difference from the original
one.
• Items marked “ * ”are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference
number in the exploded views are not
supplied.
• Hardware (# mark) list and accessories and
packing materials are given in the last of this
parts list. •
Abbreviation
CND : Canadian
CET : East European & Russian
IT : Italian
SP : Singapore
AUS : Australian
TW : Taiwan
KR : Korea
Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark
7-1. FRONT CABINET SECTION
#1
SP101 #2
#2#2
#2#
2
#1
SP201
#1
#11111
11
11 10
11
11              
5 14
1
8
1513
12
96
23
4
13-259-518-01 WINDOW (LCD) (AEP,CET,KR,SP,UK)
1 3-259-518-11 WINDOW (LCD) (IT)
1 3-259-518-21 WINDOW (LCD) (CND,AUS,TW)
2 3-259-520-01 BUTTON (CD/P) ( BX)
3 3-259-912-01 BUTTON (CD/R) ( .)
4 3-259-911-01 BUTTON (CD/F) ( >)
5 3-259-521-01 BUTTON (CD/S) ( x)
6 3-031-552-61 KNOB (TU)
8 3-259-519-01 KNOB (VOL)
9 3-031-551-01 POINTER 10 3-031-558-02 SHAFT (TU)
11 4-951-620-01 SCREW (2.6X8), +BVTP
*12 A-4542-902-A CONTROL BOARD, COMPLETE
13 X-3384-195-1 CABINET (FRONT) SUB ASSY
14 3-259-913-01 FRAME (BUTTON)
15 3-259-517-01 PANEL
SP101 1-529-723-21 SPEAKER (10cm) (L-CH)
SP201 1-529-723-21 SPEAKER (10cm) (R-CH)
#1 7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S
#2 7-685-648-79 SCREW +BVTP 3X12 TYPE2 N-S
The components identified by
mark 
0 or dotted line with mark
0  are critical for safety.
Replace only with part number
specified.
Les composants identifiés par une
marque  0 sont critiques pour la
sécurité.
Ne les remplacer que par une
piéce portant le numéro spécifié.
V er 1.2