Sony CDX-C480 / CDX-C580 Service Manual ▷ View online
– 25 –
Pin No.
Pin Name
I/O
Pin Description
53
S-METER
I
S-meter voltage detection input
54
VCC
—
Power supply
55
AMP MUTE
O
Power amplifier mute control output
56
AMP ON
O
Power amplifier power control output
57
XMODE
O
Reset signal output for CD-TEXT decoder.
58
VOL SO
O
Electric volume serial data output
59
VOL CKO
O
Electric volume serial clock output
60
AU MUTE
O
Audio mute signal output
61
AF MUTE
O
RDS mute signal output (Not used.)
62
TU MUTE
O
Tuner mute signal output
63
VSS
—
GND
64
ACC IN
I
Accessory power voltage detection input
65
AFSEEK
O
RDS operation control output
66
M SIO
I/O
EEPROM serial data input/output
67
DAVN
I
RDS data input detection input
68
M CK
O
EEPROM serial clock output
69
M CE
O
EEPROM chip enable output
70
RDS SI
O
RDS serial data input
71
RDS CKI
O
RDS serial clock input
72
RC IN1
I
Remote commander shift key input
73
X1A
—
Low frequency oscillator input
74
X0A
—
Low frequency oscillator input
75
SCOR
I
SCOR signal detection input
76
BU IN
I
Backup power supply detection input
77
DQSY
I
CD-TEXT data set complete signal detection input
78
CD SENCE
I
CD SENS signal detection input
79
KEY ACK
I
Key input acknowledge
80
TEL MUTE
I
Telephone mute detection input
81
ST IN/MONO
I
Tuner stereo signal detection input
82
SEEKOUT
O
SEEK OUT output
83
SD IN
I
Signal detection input
84
NC
—
Not used. (Connect to GND.)
85
PLL CE
O
PLL chip enable output
86
H
I
Hardware standby input
87
VSS
—
GND
88, 89
VCC
—
Power supply
90
RESET
I
Reset input
91
VSS
—
GND
92
X0
—
High frequency oscillator input
93
X1
—
High frequency oscillator input
94
VCC
—
Power supply
95
PW SEL
I
Power select initial setting input
96
NIL
—
Not used. (Connect to GND.)
97
AREA1
I
Fixed at “L”.
98
AREA2
I
Fixed at “L”.
99
AREA3
I
US, Canadian model : Fixed at “L”. E model : Fixed at “H”.
100
BAND (9K 10K)
I
AM/FM frequency select (E model)
101
NIL
—
Not used. (Connect to GND.)
102
PH3
I
Disc insert detection photo sensor input
103
PH2
I
Disc insert detection photo sensor input
104
LCD CE
O
LCD chip enable output
105
NIL
—
Not used. (Connect to GND.)
106
RE0
I
Rotary encoder input
– 26 –
Pin No.
Pin Name
I/O
Pin Description
107
RE1
I
Rotary encoder input
108
LAMP ON
O
Illumination power control output
109
PW ON
O
System power control output
110
REGMOD1
O
FM power control output
111
REGMOD2
O
System power control output
112
CTL1
O
Laser power ON/OFF control output (Not used.)
113
CTL2
O
Laser power ON/OFF control output
114
FWD
O
Loading motor control output (Loading direction)
115
REV
O
Loading motor control output (Eject direction)
116
L SW
I
SLED limit switch detection input
117
IN SW
I
Disc insert detection input
118
D SW
I
DOWN switch detection input
119
VSS
—
GND
120
SELF SW
I
SELF switch detection input
4-2. BLOCK DIAGRAM — CD SECTION —
– 27 –
– 28 –
43
14
15
16
14 RF
59 CLKO
57 XLTO
56 DATO
21
PCMD
20
LRCK
22
BCK
34
XTAI
50 XRST
DIGITAL SIGNAL
PROCESSOR
IC1
55 CNIN
54 SEIN
1
FOK
3
MDP
27
GFS
46
SQSO
47
SQCK
49
SENS
51
DATA
52
XLAT
53
CLOK
SCOR
SERVO 5V
35 PD1
36 PD2
39 E
38 F
31
RFO
19
CLK
20
XLT
21
DATA
RF AMP, SERVO CONTROL
IC2
OPTICAL PICK-UP
KSS-521A
37 FE BIAS
CD 5V
PD
LD
RV1
FOCUS BIAS
RV4
FOCUS GAIN
LD DRIVE
Q2
1
FEO
2
FEI
16
SLO
22
XRST
23
C. OUT
24
SENS
25
FOK
6
FEO
13
TAO
34 PD
33 LD
Q1
16 CH2+
15 CH2-
18 CH1+
17 CH1-
19
CH1 IN
22
CH2 IN
24
CH3 IN
TRACKING
FOCUS
3
CH4 IN
FOCUS/TRACKING COIL DRIVE,
MOTOR DRIVE
IC3
13 CH3+
14 CH3-
M902
(SLED)
M901
(SPINDLE)
M903
(LOADING)
12 CH4+
11 COM
6
FWD
7
REW
4
CTL1
5
CTL2
10 CH5+
3
DI
1
LRCI
2
BCKI
4
CLK
9
DOUT
10
BCKO
11
LRCO
6
RSTN
D-BASS
CONTROL
IC701
MOD1
MOD2
DB/DS
6
DI
5
BCKI
8
LRCI
3
CLKO
12
LO
14
RO
R-CH
18 XTI
19 XTO
DIGITAL FILTER, D/A CONVERTER
IC702
X700
16.934MHz
2
DEEM
22
RSTN
30 DEEM
6
GFS
17 SQSI
31 DBMOD1
16 DBMOD2
19 SQCKO
78 CD SENCE
SYSTEM CONTROL
IC801(1/2)
CD 5V
M
M
M
I-V
CONV.
4
DATA25
3
XLAT25
28 CLOK25
75 SCOR
5
XRSRO
2
FOK
23 C OUT
1
LD ON
115 REV
114 FWD
113 CTL2
CD 5V
REG
Q909
MD 8V
REG
Q912
MD 8V
SWITCH
Q910, 911
CD POWER
SWITCH
Q907,908
SERVO 5V
REG
Q913
120 SELF SW
117 IN SW
116 L SW
118 D SW
CD ON
32
35
MD ON
SW2
(SELF)
CD 5V
BACK UP
MD 8V
SERVO 5V
MAIN
SECTION
1
Signal path
: CD
: CD
C580
C480
SW3
(LIMIT)
SW1
(DISC IN)
SW4
(DOWN)
04
CDX-C480/C580
4-3. BLOCK DIAGRAM — MAIN SECTION —
CDX-C480/C580
– 29 –
– 30 –
-3
L
2
1
62
63
64
2
3
1
1
1
2
18
12
16
13
11
21
20
22
19
83
81
53
8
9
10
6
7
10
13
15
16
5
4
CNJ600
(ANT)
AM ANT
FM L-CH
FM R-CH
SEEK
MONO
AM/FM IFC
VCO
SD
ST-IND
S-METER
FM+B
TU+B
AM+B
VT
LO/DX
AM DET
FM ANT
TUNER ASSY
TU1
R-CH
R-CH
Signal path
: FM
: AM
: CD
: FM
: AM
: CD
CD
SECTION
PJ401
R-CH
R
-1
-2
BUS AUDIO IN
L
35
36
37
38
TONE
21
20
2
7
13
12
ELECTRONIC VOLUME
IC401
18
17
16
L3
L1
L4
L2
CL
DI
CE
LFOUT
LROUT
SYSTEM CONTROL
IC801(2/2)
59
58
41
104
14
13
90
49
72
37
64
109
47
48
12
15
60
62
FM8V
AM8V
D602
D601
TU 5V REG
Q601
SWITCH
Q901,902
COM+B REG
Q903
D-BASS
SWITCH
S801
ROTARY
ENCODER
RE801
TU5V
2
5
4
6
85
10
11
9
18
9
1
20
PLL
IC601
SEEK OUT
P3
IFIN
AMOSC
CE
DIN
CLK
DOUT
X OUT
X IN
FMOSC
PD
LO/DX
VT
CONTROL
Q611
S-METER
BUFFER
Q801
MONO
SWITCH
Q609
VCO
BUFFER
Q602
X601
7.2MHz
29
13
2
10
3
11
4
9
8
6
12
1
22
21
36
76
24
20
46
43
79
106
107
C480
BUS INTERFACE
IC803
RST
BATT
CLK
CLK
DATA
BUS ON
RES
B/U C
CLK IN
DATA IN
DATA OUT
BUS ON
BATT
CHECK
Q906
BACK UP LINE
7
8
2
3
1
5
6
4
BACK UP LINE D807
D910
CNP801
(BUS CONTROL IN)
IR
RECEIVER
IC802
Q706
PULL UP 5V
LCD DRIVE
IC801
CE
CLK
DATA
LCD801
AMBER LED
SWITCH
Q803
GREEN LED
SWITCH
Q803
U COM 5V
COM+B
BACK UP LINE
RESET
IC902
S901
RESET
CNP801
(REMOTE IN)
(REMOTE IN)
KEY MATRIX
LSW801-823
LSW801-823
(KEY BOARD)
KEY ACTIVE
Q914,915
PL801
PL802
PL802
LAMP REG
Q802, 805
LSW801, 803-819
LED801-805
TEL MUTE
SWITCH
Q916
4
5
9
10
11
6
8
8
2
3
7
POWER SUPPLY
IC901
STBY
BU5V
COM8V
COM8V
AM8V
FM8V
FM8V
PULL UP 5V
U COM 5V
COM+8V
AM8V
FM8V
MODE2
MODE1
VCC
AMP+B
ANT+B
BACK UP LINE
BACK UP LINE
ACC
CHECK
Q905
D906
F901
11
3
12
4
10
2
9
1
13
TEL MUTE
16
BATT
7
ACC
5
AMP REM
6
ANT REM
15
TEST
PLL CE
X1A
X0A
PLL SO
PLL CKO
PLLSI
SD IN
ST IN/MONO
FM 8V
Q612
S-METER
KEY IN0
SYSRST
UNI CKI/O
UNI SO
UNI SI
UNI SI
BUS ON
BU IN
BU IN
SIRCS
AD ON
AVRH
KEY ACK
RE0
RE1
ACC IN
TEL MUTE
KEY IN1
KEY IN2
RC IN0
RC IN1
RESET
108 LAMP ON
LCD CKO
LCD SO
P2/S2
S3
P1/S1
LCD CE
REGMOD1
REGMOD2
PW SEL
AMP MUTE
BAND
BEEP
D801
Q402
AU MUTE
TU MUTE
VOL CE
VOL SO
VOL CKO
PW ON
TEST
NOSE
Q110
Q401
Q111
LINE AMP
IC402
INFL
INRL
OUTFL
OUTRL
12
11
5
3
9
7
POWER AMP
IC200
22 4
FL
RL
MUTE
STBY
-6
REAR
R
-5
L
-4
FRONT
R
R-CH
R-CH
PJ401
CNP301
R-CH
CNP501
FL+
FL-
RL+
RL-
FR+
FR-
RR+
RR-
55
AMP ON 56
100
110
111
80
96
40
SW801
(POWER SELECT)
OFF
ON
SW802
FREQUENCY
SELECT
FM200K
AM10K
E MODEL
04
C580
C480
BACK UP
D918
D919
LINE OUT
+
92
93
X800
4.19MHz
X0
X1
73
74
X801
32.768kHz
FM50K
AM9K
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