Sony WX-C570R Service Manual ▷ View online
6-1. BLOCK DIAGRAM — CD SECTION —
WX-C570R
– 33 –
– 34 –
14 RF
59 CLKO
57 XLTO
56 DATO
56 DATO
21
PCMD
20
LRCK
22
BCK
34
XTAI
50 XRST
DIGITAL SIGNAL PROCESSOR
IC1
D/A CONVERTER
IC801
55 CNIN
54 SEIN
54 SEIN
1
FOK
3
MDP
46
47
SQSO
GFS
SCOR
49
SQCK
51
SENS
52
DATA
53
XLAT
CLOK
5
OPTICAL PICK-UP
KSS-521A
SERVO 5V
PD
LD
RV1
FOCUS BIAS
RV4
FOCUS GAIN
LD DRIVE
Q1,2
35 PD1
36 PD2
39 E
38 F
38 F
31
RFO
19
CLK
20
XLT
21
DATA
RF AMP, SERVO CONTROL
IC2
37 FE BIAS
1
FEO
2
FEI
16
SLO
22
XRST
23
C. OUT
24
SENS
25
FOK
6
FEO
13
TAO
34 PD
33 LD
TRACKING
FOCUS
M902
(SLED)
M901
(SPINDLE)
M903
(LOADING)
16 CH2+
15 CH2–
18 CH1+
17 CH1–
19
CH1 IN
22
CH2 IN
24
CH3 IN
3
CH4 IN
FOCUS/TRACKING COIL
DRIVE, MOTOR DRIVE
IC3
13 CH3+
14 CH3–
12 CH4+
11 COM
6
FWD
7
REW
4
CTL1
04
10 CH5+
M
M
M
I - V
AMP
X401
16.9344MHz
D IN
4
LRC IN
6
BCK IN
CLKO
CLKO
3
DI
12
VOUTL
9
VOUTR
19
9
DOUT
1
LRCK
2
BCKI
4
CLK
11
LRCO
10
BCKO
14
MOD1
15
MOD2
16
DB/DS
17
DM1
18
MUTE
CD
1
XTI
54
49
20
53
XTO
LD ON
LM LOD
LMEJ
LMEJ
48
62
FOK
29 CD RST
56
CNIN
CTL1
R-CH
41 SQ SI
42 SQ CKO
64 SENS
44 SO
44 SO
SW2
(SELF)
28 EMPHON
27 CD MUT
38 DBCNT1
37 DBCNT2
CD SYSTEM CONTROL
IC401(1/2)
DSP
IC802
40
61
61
GFS
SCOR
SELFSW
D-SW
63
22
CDON
21
CDMON
8V REG
Q464,465
5V REG
Q462,463
45 LAT
46 CKO
46 CKO
SW1
(DISC IN)
IN SW 51
MAIN
SECTION
1
: CD
27
43
BATT
MD8V
SERVO 5V
Q401
36 DBCNT3
SW4
(DOWN)
50
SW3
(LIMIT)
52
LSW
Q461
Signal Path
CD L-CH
SECTION 6
DIAGRAMS
6-2. BLOCK DIAGRAM — TAPE SECTION —
WX-C570R
– 35 –
– 36 –
SW701
(RESET)
Q951
FL DRIVE
IC701
SYSTEM CONTROL
IC501(2/2)
X402
5MHz
111
113
113
114
109
110
112
19
18
16
17
14
20
105
106
107
108
5
2
4
4
6
104
7
76
35
46
47
78
49
18
21
20
22
77
17
90
55
36
37
F ROUT
TAPE MUTE
AMS IN
AMS ON
POS0
POS1
POS2
POS3
BUS ON
BUS SO
BUS SI
BUS CKI/O
BU IN
SYSRST
RESET
RAM BU
RE IN0
RE IN1
CD SYSTEM CONTROL
IC401(2/2)
19
17
67
16
18
66
60
LINK OFF
UNI SO
BUS ON
UNISI
UNICKI
BUIN
RST
X2
X1
FL CE
FL BLK
FL SO
FL CKO
LM EJ
LM LOD
CM ON
REEL
TAPE ON
AD ON
KEY IN0
KEY IN1
RC IN1
RC IN0
40
ILL ON
98
97
100
99
28
29
26
27
FL CE
FL BLK
FL DATA
FL CL
LED DRIVE
IC702
LED LCK
LED OE
LED CLK
LED DATA
4
17
3
2
60
6
11
59
14
13
LCK
OE
Q0
Q6
CLK
DATA
BATT
CHECK
1
12
6
4
3
2
9
8
11
10
13
HIGH VOLT
CHECK
Q952
D-BASS
SWITCH
SW700
8
3
2
1
6
5
4
7
BATT
BATT
OUT
VDD
BU 5V
BU5V
69
70
CAPSTAN/REEL
MOTOR DRIVE
Q324,325
48
KEY IN2
SW702
ROTARY
ROTARY
ENCODER
3V REG
Q481
POWER
SWITCH
Q482,483
LED
SWITCH
Q702–705
10V REG
Q473,474
POWER
SWITCH
Q471,472
FL701
AUTO
MUSIC
SENSOR
DOLBY
NR
FWD
R-CH
HP901
PLAYBACK HEAD
TAPE L-CH
REV
R-CH
7
9
(TAPE OPERATION)
EJECT
FF(NOR)
REW(NOR)
REV
FWD
(TAPE DET)
M
M
LOADING
MOTOR
DRIVE
IC321
LOADING/TAPE
OPERATION MOTOR
M904
CAPSTAN/REEL
MOTOR
Q491
BATT
BATT
FLMT+B
5V REG
Q701
DRIVER+B
PLAT+B
LED+B
LCD+B
PON
MAIN
SECTION
KEY-ACK
DETECT
Q561
KEY-ACK
DETECT
Q562
BU5V
BU5V
R-CH
24
34
32
NR ON
EQ
MTL/NORMAL
MUTE
AMS
AMS/PLAY
BUFFER
REEL
SENSOR
8.5V REG
Q321–323
BATT
TA8.5V
KEY ACK
I/F+B
J501
29
27
FL
RL
L
R
L
R
TAPE EQ/DOLBY NR
IC301
IC301
RV101
MAIN SECTION
3
2
FWD/REV
L OUT
MTL ON
DOL ON
DOLBY
LEVEL
(L-CH)
CN951
BUS INTERFACE
IC951
RAM RESET
IC562
RESET
IC561
LCD+B
LCD+B
LED+B
FLMT+B
D568
04
D565
D361
D562
D561
D732–735
LED+B
D736–742
D713–716, 730,731,
LSW702,718
LSW701,703–712,
717,719–723
: TAPE
Signal Path
(REMOTE IN)
LSW701–723
(BUS CONTROL IN)
1
1
2
2
Q8
Q11
13
16
WX-C570R
6-3. BLOCK DIAGRAM — MAIN SECTION —
– 37 –
– 38 –
LPF
Q41
D1
FM 8V
TU 8V
AM 8V
AM 8V
L-CH OUT
R-CH OUT
AMDET
S-METER
SD
ST
ST
IFC AM
IFC FM
VCO
VT
LO/DX
SEEK
TUNER UNIT
TU1
18
16
11
10
12
19
53
62
57
13
20
22
22
11
21
21
6
5
4
13
35
37
38
33
16
CL
18
DI
17
CE
TONE/
DBB
36
34
OFF
ON
S501
POWER
SELECT
SELECT
ELECTRONIC VOLUME
IC302
POWER AMP
IC306
CN900
CN304
R-CH
R
–2
–1
X51
7.2MHz
X501
32.768KHz
X502
3.68MHz
SI
FM ST
SD IN
VSM
TU MUTE
SO
PLL
CKO
CE
CE
X1A
X0A
X0
X1
AF SEEK
04
FL
RL
1
3
5
FL+
FL–
1
9
21
20
L
10 MUTE1
2 STBY
11
7
9
RL+
RL–
10
2
4
12
3
11
13
14
7
15
5
6
BUZZER
DRIVE
Q591
START
MUTE
Q921,922
5V REG
Q71
+B SWITCH
Q81
MUTE
CONTROL
Q903
R-CH
Q151
Q351
Q31
S-METER
RV31
R-CH
TAPE SECTION
CD SECTION
TAPE L-CH
CD L-CH
16
18
9
64
15
FM DET
16
23
MPX
20 LVIN
AM IF
AM OSC
FM OSC
PD
LO/DX
SEEK OUT
X1
X0
DO
DI
CLK
CE
1
20
74
93
83
6
5
4
2
PLL
IC51
FM/AM SELECT
IC303
9
10
11
11
19
73
X81
4.332MHz
OSCO
OSCI
5
4
92
VOL CKO
VOL CE
VOL SO
MUTE
67
68
66
66
84
15
85
117
116
118
2
3
4
7
6
8
9
10
11
31
101
102
81
100
BEEP
AMP ON
TU ON
FM ON
P ON
POR SEL
TEL MUTE
ILL IN
ACC IN
TEST
SYSTEM CONTROL
IC501(1/2)
IC501(1/2)
TEL MUTE
CONTROL
Q902
6V REG
IC941
19
ACC
CHECK
Q971
DIMMER
CONTROL
Q901
BATT
HIGH VOLT
CHECK
Q923
BATT
MODE 2
MODE 1
STBY
AM 8V
AM 8V
+6V
PUL 5V
FM 8V
FM 8V
Q1001
VCC
AMP +B
ANT +B
COM 8V
BATT
RDS 5V
TU 5V
TU 8V
COM 8V
R-CH
FR+
FR–
RR+
RR–
AMP REM
ANT REM
ATT
ILL
ACC
TEST
POWER SUPPLY
IC901
BZ591
(BUZZER)
ANT FM
ANT AM
+B FM
+B TU
+B AM
1
2
8
9
10
BU 5V
D922
2
1
TAPE SECTION
3
J1
(ANTENNA)
BATT
D564
D569
BATT
PON
Signal Path
: FM
: MW
: TAPE
: CD
BUS AUDIO IN
MUTE
DRIVE
Q451
CN803
R-CH
R-CH
Q801
Q802
9
6
65
12
8
MUTE
DRIVE
Q924
MUTE
DRIVE
Q352
Q181
Q182
L
-1
-2
-3
-4
R
L
R
LINE OUT
FRONT
LINE OUT
REAR
AM 8V
1
2
Q61
SWITCH
IC41
6
3
7
5
Q82
MPTH
DAVN
DAVN
RDS
SDA
SCL
SCL
MPTH
DAVN
DAVN
SDA
SCL
SCL
2
8
9
10
RDS MODULATOR
IC81
52
72
70
72
70
71
– 39 –
6-4. IC PIN DESCRIPTIONS
• IC401
• IC401
µ
PD78054GC-484-3B9 (CD SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1 – 3
NCO
I
Not used.
4
AVSS
—
GND for A/D conversion.
5, 6
NCO
O
Not used.
7
AVREF
—
Reference voltage power supply for D/A conversion. (+5 V)
8 – 15
NCO
O
Not used.
16
UNISI
I
Serial data input (for SONY BUS)
17
UNISO
O
Serial data output (for SONY BUS)
18
UNICKI
I
Serial clock input (for SONY BUS)
19
LINKOFF
O
Link off output
20
NCO
O
Not used.
21
CDMON
O
CD mechanism power control output
22
CD-ON
O
CD power control output
23 – 26
NCO
O
Not used.
27
CDMUT
O
CD mute control output
28
EMPHON
O
Emphasis control output
29
CDRST
O
CD signal process IC reset output
30 – 32
NCO
I
Not used.
33
VSS
—
Microcomputer GND
34
TBTGSEL
I
CD traverse/tracking gain automatic adjustment select input
35
NCO
I
Not used.
36 – 38
DBCNT3 – 1
O
D-BASS (Digital Bass Boost) IC control output 3 – 1
39
DB RST
O
D-BASS (Digital Bass Boost) IC reset output
40
GFS
I
GFS signal detection input
41
SQ SI
I
SUB Q data input
42
SQ CKO
O
SUB Q clock output
43
NCO
I
Not used.
44
CD SO
O
CD signal process serial data output
45
CD LAT
O
CD signal process latch output
46
CD CKO
O
CD signal process serial clock output
47
NCO
I
Not used.
48
F OK
I
Focus signal detection input
49
LDON
O
Laser ON/OFF control output
50
DSW
I
DOWN switch detection input
51
IN SW
I
Disc insert detection input
52
LSW
I
Sled limit switch detection input
53
LMLOD
O
Loading motor control output (Loading direction)
54
LMEJ
O
Loading motor control output (Eject direction)
55
NCO
I
Not used.
56
CTL1
O
Driver IC control output 1
57 – 59
NCO
O
Not used.
60
RST
—
Reset input
61
SCOR
I
SCOR signal detection input
62
CNIN
I
Track jump number count input
63
SELFSW
I
Disc self store detection input
64
SENS
I
SENS signal detection input
65
NCO
O
Not used.
66
BUIN
I
Backup power detection input
67
BUSON
I
BUS ON control input
68
VDD
—
Microcomputer power supply
69
X2
—
Main oscillator output (5 MHz)
70
X1
—
Main oscillator input (5 MHz)
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