26
KDC-237SA/237SAY
KDC-237SG/237SGY
K
L
M
N
O
5.0V
5.0V
0V
5V
0V
5V
0V
5V
0V
0V
5V
0V
5.0V
5.0V
5V
0V
0V
5V
0V
5V
0V
5V
0V
0V
5V
0V
5V
0 or 5.0V
0 or 5.0V
0 or 5.0V
0 or 5.0V
0 or 5.0V
0V
5.0V
5.0V
0V
5V
5V
0V
1.6V
5V
0V
3.4 or 5.0V
0 or 1.6 or 2.5 or
5V
0V
0V
5V
0V
5V
5V
0V
0V
5V
0V
5V
0V
5V
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
0V
5.0V
0V
5V
0V
5V
0V
5V
5V
0V
0V
5V
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
0V
5V
0V
5V
0V
0V
5V
0V
5V
0V
5V
5V
0V
IC8
∗
IC1
KDC-237SA/
Q10
Q10
Q103
∗
Q4
J1
BU DET
D105
LINE MUTE
∗
F
D102
D104
D103
D101
P CON
P ANT
∗
E
∗
L
D3
∗
D5
RESET IC
CD CN
CN2
Q9
D7
Q7
Q8
D2
Q3
Q2
Q1
SERVO+B AVR
to X32- CN2
∗
H
ILL &
VFD+B
SYSTEM u-COM
CONTROL
SERVO+B
SW for
CONTROL SW fo
VFD+B
SW
VFD+B
AVR
CONTROL
VFD+B
SW for
TP368
TP365
TP4
TP354
TP370
TP364
TP353
T
TP2
TP363
TP352
T
X2
32.768kHz
TP413
TP374
TP30
TP1
TP351
TP362
TP432
TP373
TP360
TP8
TP404
TP28
T
TP372
TP502
TP359
T
TP371
TP358
TP361
T
TP369
TP5
TP412
TP357
TP7
X1
10.000MHz
TP367
TP356
TP6
TP3
TP366
TP355
T
TP9
FL-
FL+
RL+
RR-
FR-
RL-
RR+
FR+
7
FR
ONT L-
FR
ONT L+
REAR L+
8
REAR L-
FR
ONT R-
FR
ONT R+
REAR R-
REAR R+
6
5
10
9
11
12
10K
R115
10
R1
0.01
C102
22K
R109
10K
R116
0.01
C101
1
R
47K
R104
100K
R105
R102
R101
4.7K
4.7K
0
∗
R954
∗
C4
0.1
W201
0
R964
R9
0
100u25
C5
100u25
C6
100u6.3
C7
C11
0.1
2.2
C12
0.1
C9
C3
0.1
94
0.0
C9
0.1
C14
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
LX D
A
T
A
S
A
VCC
VREF
REF CON
A
VSS
PON
PS1 3
PS1 2
PS1 1
PS2 1
PS2 2
OFFSET DET
LINE MUTE
PWIC DC DET
TYPE 2
TYPE 1
TUN SMETER
RDS NOISE
NC
NC
BU DET
ACC DET
PWIC MUTE
PWIC STBY
PWIC SVR
LX REQ S
RDS CLK
LX REQ M
LX MUTE
LX CON
LX RST
ANALOG CON
MUTE
PON EXT GND
TUN IFC OUT
RDS AFS M
VSS
NC
VCC2
RDS QUAL
RDS DATA
DSI
NC
ROTARY CW
ROTARY CCW
CD DISC12 SW
CD MUTE
NC
NC
NC
VFD SYS D
A
T
A
VFD P
AN D
A
T
A
VFD CLK
VFD BLK
CD SD
A/CD SI
CD SCL/CD SO
NC/B
UCK
CD LOS SW
PIO0
CD MST
OP/SRAMSTB
EPM
CD LOE LIM SW
PON CD
CD LOEJ
CD MO
T
O
R
VFD CE/LCD CE
CD DRIVEMUTE
CD CCE
CD DISC8 SW
CD MRST
LX DATA M
LX CLK
NC
NC
NC
REMO
NC
BYTE
CNVSS
XCIN
XCOUT
RESET
XOUT
VSS
XIN
VCC1
NMI
PANEL DET
NC
NC
ROMCOR DET
NC
NC
PON FL
NC
PON PANEL
NC
PWIC BEEP
AUD SCL
AUD SDA
56
55
54
57
59
35
36
37
38
39
40
42
43
44
45
46
47
48
49
50
33
32
31
34
47K
R212
47K
R335
60
61
65
66
74
71
70
75
73
72
69
68
67
77
78
22K
∗
R214
100K
∗
R220
100K
∗
R219
22K
R218
R223 2.2K
∗
R228
∗
R226
∗
R225
∗
R227
83
84
2.2K
∗
R221
1000P
C205
93
94
92
91
90
87
100
100K
∗
R229
100K
∗
R202
47K
∗
R201
18P
C202
22P
C203
10K
R204
0.1
C204
47K
R206 47K
R207 47K
47K
R208
470
R210
10K
R203
6
2
1
18
26
24
SCL
SDA
2
1
OUT
VDD
3
4
NC
VSS
R205
470
R209
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
D-OUT B
UCK
CD DISC12 SW
CD LOS SW
CD-SCL CD-SO
CD-SD
A CD-SI
A
UDIO+B
Lch
GND
Rch
CD MUTE R
PIO0
CD MRST
CD MST
OP
CD DISC8 SW
CD LOE LIM SW
B
U5V
DGND
CCE
PON CD
DRIVER MUTE
CD LOEJ
CD MO
T
O
R
SER
V
O+B
SER
V
OGND
R315 4.7K
∗
R316
∗
R967 470
R319 2.2K
R317 2.2K
R313 1K
R311 1K
R310 1K
∗
R308 2.2K
∗
R305 1K
∗
R304 1K
∗
R303 1K
R301 2.2K
0.47u50
C301
0.47u50
C302
R302 100
R314 100K
∗
R309 4.7K
R320 4.7K
R318 4.7K
37
55
38
36
35
54
39
50
40
49
42
47K
∗
R211
4.7K
R306
48
43
47
44
45
1K
∗
R312
2.2K
R307
SW5V
10K
R117
∗
W5
∗
R961
680
R16
0
R952
C15
2.7K
R17
22u16
1/2W
R11
R12
0
1/2W
10
1/2W
10
R14
R13
R15
1/2W
10
10
1/2W
10
24
FL+B
ILL+B
22u16
C2
R1
1K
0
∗
R953
A
UDIO+B
AUDIO+B
AM+B
BU5V
BU
BU
BU
BU
BU5V
BU5V
BU5V
B
U5V
B
U5V
-1
BU5V-1
BU5V-1
B
U5V
-1
B
U5V
-1
B
U5V
-2
BU5V-2
SW5V
SW5V
SERVO+B
SER
V
O+B
6,18,26
SW5V
SW5V
BU
Q3
Q7
Q8
Q9
+
+
+
+
+
+
+
1
1
1
1
1
4
4
4
4
4
4
1
5
5
5
5
6
7
7
7
7
7
7
7
8
8
8
8
8
8
9
9
9
9
10
10
10
10
10
10
10
10
10
10
X34-4672-78 (3/4)