Sony CFD-S550 Service Manual ▷ View online
CFD-S550
17
17
SECTION 6
DIAGRAMS
Pin No.
Pin Name
I/O
Pin Description
6-2. CIRCUIT BOARDS LOCATION
6-1. IC PIN DESCRIPTION
• IC802 uPD789477GC-A27-8BT (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Pin Description
1, 2
NC
—
Not used. (Open)
3 to 5
VLC2 to 0
I
LCD drive bias voltage input
6 to 9
COM0 to 3
O
LCD drive common output
10 to 26
S0 to 16
O
LCD drive segment output
27
REC
I
Tape record signal input H: REC
28
AC-CHK
I
AC power supply detection signal input L: AC in
29
CD-DOOR
I
CD door open/close switch input L: Close
30
S-ROCK
O
ROCK LED control signal output
31
S-POP
O
POP LED control signal output
32
S-JAZZ
O
JAZZ LED control signal output
33
S-VOCAL
O
VOCAL LED control signal output
34
LINE IN
O
LINE IN control signal output
35
A-MUTE
O
Audio mute output H: Mute
36
CD
O
CD function output H: CD
37
TAPE
O
Tape function output H: Tape
38
AVDD
—
Analog power supply pin for A/D converter (+3.3 V)
39
BTT-CHK-H
I
Battery check input for Hi-voltage
40
BTT-CHK-M
I
Battery check input for Mid-voltage
41
V CHECK
I
Voltage check input
42 to 45
KEY4 to 1
I
Key input
46
MODE CHK
I
Destination setting input
47
AGND
—
Analog ground for A/D converter
48
REMOTE
I
Sircs receiver data input
49
TC-PLAY
I
Tape play switch input L: Play
50
WP/INI
O
Wake-up/Initial setting read signal output
51
3.3V MONITOR
I
3.3V MONITOR signal input
52
C-WRQ
I
CD write request data input
53
C-DOUT
I
CD digital signal processor data input
54
C-DIN
O
CD digital signal processor data output
55
C-CLK
I
CD serial data transfer clock signal input
56
R-COUNT
I
Tuner PLL IF count input
57
R-DATA
O
Tuner PLL data output
58
R-CLK
O
Tuner PLL clock output
59
R-LAT
O
Tuner PLL latch output
60
B-MUTE
O
Tuner mute signal output H: Mute
61
C-DRF
I
CD DRF signal input
62
C-CE
O
CD chip enable output
63
C-FSEQ
I
CD frame SYNC input
64
C-XRT
O
CD system reset output
65
P-CON
O
System power control output H: PCON
66
ISS1
O
ISS1 output
67
ISS2
O
ISS2 output
68
DBB
O
MEGA BASS control output H: MEGA BASS off, L: MEGA BASS on
69
ICO
I
Connected to VSS.
70
XT1
I
Sub system oscillation input (32.768 kHz)
71
XT2
O
Sub system oscillation output (32.768 kHz)
72
VDD
—
Main power supply pin for A/D converter (+3.3 V)
73
VSS
—
Main ground
74
X1
I
Main system oscillation input (4.19 MHz)
75
X2
O
Main system oscillation output (4.19 MHz)
76
RST
I
System reset input
77
V-CLK
O
Volume clock output
78
V-DATA
O
Volume data output
79
SCL
O
EEPROM clock output
80
SDA
I/O
EEPROM input/output
TEN KEY board
TUNER board
TC board
BATTERY (1) board
BATTERY (2) board
MAIN board
LCD board
FUNCTION KEY board
HEADPHONE board
POWER board
VOL SEL board
(Saudi Arabia model only)
(Saudi Arabia model only)
LINE IN board
(US, Canadian model only)
(US, Canadian model only)
POWER KEY board
SOUND board
VOL board
CD BUTTON board
CD board
CFD-S550
18
18
A
C
B
F
E
D
A
C
B
D
LD
PD
VR
F
T+
T–
F+
F–
F–
SL+
SL–
SL–
SP+
SP–
E
VREF
LD
PD
LD POWER
CONTROLLER
Q701
APC
FIN2
FIN1
LDD
LDS
TIN2
TIN1
VREF
RF
10
9
11
80
7
79
4
8
9
12
11
TRACKING
COIL
DRIVE
19
7
FOCUS
COIL
DRIVE
TIN
FIN
25
SLIN
SLED
MOTOR
DRIVE
3
SPINDLE
MOTOR
DRIVE
SPIN
VREF
OPIN
MUTE
T+
T–
17
18
F+
F–
26
27
SL+
SL–
2
1
SP+
SP–
TRACKING
COIL
FOCUS
COIL
OPTICAL PICK-UP
BLOCK
(KSS-213R)
M
M
M702
SLED
MOTOR
M701
SPINDLE
MOTOR
SLED/SPINDLE
MOTOR DRIVER,
TRACKING/FOCUS
COIL DRIVER
IC702
S701
(LIMIT)
EFMIN
HFL
AGC
PH(RFENV)
FE
TE
VREF
CONT1
FSEQ
CONT4
DRF
RES
DI
CE
CL
WRQ
DO
XOUT
XIN
LCHO
RCHO
1
3
67
TDD
TD
FD
SP
SL
31
72 25
66
63 61 62
49
48
65 64
42
45
RF AMP,
SYSTEM SERVO PROCESSOR,
DIGITAL SIGNAL PROCESSOR
IC701
39
29
61 63
54 62 55 52 53
64
X701
16.93MHz
C-CE
C-DIN
C-CLK
C-WRQ
C-XRT
C-DRF
C-FSEQ
C-DOUT
CD-DOOR
CD
BTT-CHK-H
65
P-CON
28
AC-CHK
SYSTEM CONTROLLER
IC802 (1/2)
CD +3.3V
REG
Q957-959,D957
BATTERY
CHECK
Q804,806
POWER
CONTROLLER
Q819,D802
AUDIO+6V
REG
Q955,D953
+3.3V REG
IC801
POWER
SWITCH
Q952,953
POWER
SWITCH
Q951
CD 3.3V
CD-CONT
S801
PUSH
OPEN/
CLOSE
3.3V
VDD (SW)
AUDIO 6V
D901 – 904
RECT
F902
T901
POWER
TRANSFORMER
J901
AC IN
Signal path
: CD
CLV,CAV
CONTROL
PLL
VCEC
SWITCH
ERROR
CORRECTION
AUDIO CD
A/D
CONVERTER,
SERVO
PROCESSOR
FRAME SYNC
DETECT,PROTECT
INSERT
EFM DECODER
INTERPOLATION
MUTE
&
ATTENUATION
DEEMPHASIS
8FS
DIGITAL
FILTER
&
1-bit DAC
LPF
SLICE
LEVEL
CONTROL
GENERAL
PURPOSE
PORT
COMMAND
INTERFACE
INTERFACE
CLOCK
GENERATOR
23
15
FD
SL
SP
TD
VREF
VREF
VREF
CD_IN_R
CD_IN_ L
DRY BATTERY
SIZE " D "
(IEC DESIGNATION R20)
6PCS, 9V
4.5V
4.5V
D/A
CONVERTER
PH/BH
RADIO 6V
CD 6V
40
BTT-CHK-M
41
V-CHECK
20
FDD
SPDO
SLDO
21 22 23
2
3
51
3.3V MONITOR
2
F901
D951
Q801
VDD
Q815
BATT COM
VDD
AC-HI
U-COM
(VDD)
AUDIO
OUT
DOUT
39
EA,KR,SP,CND
MODEL
MODEL
EXCEPT EA MODEL
EA MODEL
US,E92,MX
MODEL
MODEL
S901
VOLTAGE
SELECTOR
220-240 110-127V
6-3. BLOCK DIAGRAM — CD SECTION —
(Page 19)
(Page 19)
CFD-S550
19
19
2
5
21
22
16
4
L-CH
R-CH
HRP301
RECORD/PLAYBACK
HEAD
HE301
ERASE HEAD
DET
Q204
Q112
ALC 2
RADIO L
18
15
L.LO
R.LO
LINE
TAPE
R-CH
TU_IN_R
TU_IN_L
TAPE
LOGIC
13
SC
14
SI
POWER AMP
IC304
D322
LINE IN
BUFFER
6V
(Q111,205)
AUDIO
6V
R-CH
SP201
SPEAKER
(L-CH)
SP101
SPEAKER
(R-CH)
J321
REF
L.LINE
L.RO
REC
L.RAD
R.RAD
T301
REC BIAS OSC
Q301
ISS1
66
TAPE
37
V-CLK
V-DATA
CD
CD-CONT
D810
26–10
6 – 9
LIQUID CRYSTAL
DISPLAY PANEL
LCD401
SYSTEM CONTROLLER
IC802 (2/2)
77
36
78
DBB
68
LINE IN
34
COM0
|
COM3
S0
|
S16
EEPROM
IC803
REMOTE
CONTROL
RECEIVER
IC401
SCL
SAD
46
MODE CHK
50
WP/INI
Q813
Q812,D807
VOL
48
1
3
KEY1
45
KEY2
44
KEY3
43
KEY4
42
Signal path
: FM
: AM
: TAPE PLAY
: TAPE REC
: CD
: FM
: AM
: TAPE PLAY
: TAPE REC
: CD
R-ch is omitted due to same as
L-ch.
L-ch.
REC/PB
PRE AMP
IC301
11
5
MEGA
BASS
CONTROLLER
Q122
POWER
CONTROL
Q816,817
20
6
14
R.LINE
8
R.IN
L.IN
9
R.RO
i
A-MUTE
35
MUTE
Q124
LEVEL
DETECT
D323
TC-PLAY
49
M
TAPE PLAY
DETECT
Q808
24
REC
27
-1
-2
S301
(REC/PB)
REC
PB
VDD (SW)
KEY4
KEY3
KEY3
KEY1
KEY2
S301
(TAPE PLAY)
M301
CAPSTAN/REEL
MOTOR
17
CD_IN_R
CD_IN_L
S417-424
S413-416,425-428
S409-411,429-433
S401,402,434-438
S413-416,425-428
S409-411,429-433
S401,402,434-438
6
5
79
80
Q406
3.3V
S439
AUDIO 6V
Q302
AC-HI
REMOTE
U-COM
(VDD)
VDD (SW)
1
ISS2
67
Q303
KEY NETWORK
D405
OPR/BATT
D804
VIN2
VOUT2
IC303
ELECTRONIC VOLUME
6
16
VOL AMP
LED
DRIVER
Q401-404
D401
D402
D403
D404
AUDIO
6V
S-VOCAL
33
S-JAZZ
32
S-POP
31
S-ROCK
30
J303
LINE IN
Q205
Q111
LINE
US,CND MODEL
EXCEPT
US,CND MODEL
US,CND MODEL
US,CND MODEL
Q814
18
11 12
20
19
AM IN
FM IN
XOUT
XIN
13
MO/ST
10
IF IN
LPF2/MO-ST
LPF1/BAND
ST-IND
OSC-OUT
7
BAND
8
ST-IND
LP-OUT
17 LP-IN
16 PD
AM
OSC
AM
MIX
FM
MIX
FM
OSC
AM
RF-IN
RF-IN
FM
RF-IN
RF-IN
FM
RF-OUT
RF-OUT
X1
75kHz
FM/AM PLL
IC2
14
17
13
18
16
15
11
12
19
20
22
4
6
7
10
2
21
24
T1
CF4
L2
L1
CT1
RADIO 6V
RADIO 6V
D1
D2
CT3
D3
L3
AM
FERRITE-ROD
ANTENNA
CT3,L3
AM
TRACKING
CT1,L1
FM
TRACKING
ANT1
FM
TELESCOPIC
ANTENNA
IF
BUFFER
AM
DET
FM
DET
IF CUT
AF
BUFFER
FM
MPX
MUTE
IF CUT
R-OUT
L-OUT
TU_IN_R
RADIO 6V
QUAD
FM/AM FRONT END, IF AMP,
FM MPX
IC1
AM
FREQUENCY
COVERAGE
L4
RADIO 6V
L4
CF2
RADIO 6V
RADIO 6V
RADIO 6V
FM OSC
AM OSC
MIX-OUT
AM
IF-IN
IF-IN
FM
IF-IN
IF-IN
IF-OUT
DET-OUT
MPX-IN
T2
T2
FM IF
L2
FM
FREQUENCY
COVERAGE
VDD (SW)
T1
AM IF
D324
57
59
58 56
60
R-LAT
R-CLK
R-DATA
R-COUNT
76
RST
B-MUTE
74
X1
75
X2
TUNER
X802
4.19MHz
RESET
IC804
70
XT1
71
XT2
X801
32.768kHz
3.3V
1
2
1 2 3 4
CE
CL
DI
DO
6-4. BLOCK DIAGRAM — MAIN SECTION —
(Page 18)
(Page 18)
CFD-S550
20
20
1
A
B
C
D
E
F
G
2
3
4
5
6
7
M
M
OPTICAL
PICK-UP
BLOCK
(KSS-213R)
1
15
10
2
16
M701
SPINDLE
MOTOR
M702
SLED
MOTOR
IC701
Q701
IC702
C729
C730
R730
R728
R729
C704
R708
C728
R724
R722
R725
R726
R707
C701
C726
C723
C725
C724
R719
R717
R718
R716
C720
C721
C722
R731
R721
R720
C716
R715
R714
1-688-377-
(11)
11
C727
C711
C709
FB701
C736
C734
R709
C705
R704
R702
R711
R710
R703
R705
R701
C703
C731
R706
R727
R712
R723
C708
R741
JC701
R744
R743
C751
JC702
JC703
C743
C744
C745
C742
C754
C755
C741
JC704
C707
L706
C717
C739
C738
TP
(VREF)
TP
(TE)
TP
(FE)
TP
(RF)
TP
(R-CH)
TP
(L-CH)
R732
S701
(LIMIT)
C732
CNP701
X701
CNP702
C702
JW701
JW702
JW703
JW705
TY
FY
TX
FX
JW706
JW707
JW708
JW709
JW713
JW714
JW715
JW716
JW717
JW718
JW721
JW722
JW723
JW724
JW725
JW726
JW727
JW728
JW729
C740
C750
C746
C747
JW719
C735
JW720
JW711
C733
C706
JW712
JW710
6-5. PRINTED WIRING BOARD — CD SECTION — • Refer to page 17 for Circuit Boards Location.
(Page 24)
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
Common Note on Schematic Diagrams:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
•
H
: adjustment for repair.
• Total current is measured with no cassette installed.
• Power voltage is dc 9V and fed with regulated dc power
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: AM
E
: PB
a
: REC
J
: CD
• Abbreviation
CND : Canadian model.
E92
E92
: AC 120V area in E model.
MX
: Mexican model.
EA
: AC 110-127V/220-240V are in E model.
KR
: Korean model.
SP
: Singapore model.
Common Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
• Abbreviation
CND : Canadian model.
E92
E92
: AC 120V area in E model.
MX
: Mexican model.
EA
: AC 110-127V/220-240V are in E model.
KR
: Korean model.
SP
: Singapore model.
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
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