Kenwood KDC-M907 Schematics
A B C D E
C
3
2
C
2
C
+
R
2
6
6
0
6
0
6
0
6
0
6
+
+
KDC-M907
1
2
3
4
5
6
B.UP
ILLUMI
REAR R FRONT R
REAR L
B.UP
ILLUMI
EXT.
CONT
REAR R
REAR L
ORG/WHT
TEL MUTE
EXT.
PMK/BLK
CONT
RR+
RR-
GRN/BLK
RLRL+
YEL
ORG/WHT
VIOL GRY
VIOL/BLK
GRN/BLK
GRN
DC CORD
(E30-4940)
KDC-MP919
YEL
ORG/WHT
PNK/BLK
VIOL
VIOL/BLK
GRN/BLK
GRN
DC CORD
(E30-4939)
KDC-X859/X759
FL-
RL-
RL+
7
8
7
ACC
8
GND
BLKYEL
116
RED
215
BRN
BLU/WHT
314
BLU/WHT
13 4
GRY
VIOL
512
GRY/BLKVIOL/BLK
WHT/BLK
710
WHTGRN
98
DC CORD
(E30-4942)
KDC-9020R/M907
(E30-4956)
KDC-PSW9521/M9021/8021
16
13
1265
11
16 1
15 2
13144
12
1156
10 7
98
FL+
ILLUMI
2115
3414
710
89
3
FR-
34561
35461
B.UP
BLK
RED
BLU/WHT
BLU
GRY/BLK
WHT/BLK
WHT
BLK
RED
BLU/WHT
BLU
GRY
GRY/BLK
WHT/BLK
WHT
RR-
FR+
ANT CONT
FR+
FR-11 6
FLFL+
RR+
2
2
P CONT
B
A
P.CON
P. CON
ANT CON
FRONT L
P. CON
ANT CON
FRONT R
FRONT L
GND
ACC
GND
ACC
RCA CORD
N-FADER
REAR
FRONT
REMOTE
REMO O-DATA
12
O-CE O-CLK
ELECTRIC UNIT (X25-91xx-xx)
-10.0V
4
-9.3V
0V
3
0V
0V
5
3
0V
VSS
5V
0V
4
-9.3V
4
-9.3V
22u16
2.2
C27
AC-GND
R178
R177
VSS
VSS
C29
+
GND2
VCC2
GND1
GND3
VCC1
10K
10K
R18
C28
SVR
IN2
IN4
R173
R174
R176
R175
Q17-22
DIFFERENTAL STA
D9
R20
7.5K
R19
Q19
47
Q18
2.7K
Q17
2.2
2
0V
6
14.4V
0V
8
6.8V
10
6.8V
12
6.8V
14
C118
1u50
6.8V
16
+
0V
18
14.4V
20
0-4.3V
22
24
0V
1u50
C117
R166
360
Q42
4.7K
2.2K
R172
Q43
4.7K
2.2K
R171
R165
360
10K
R167
∗
10K
R168
∗
10K
R170
∗
10K
R169
∗
C30 0.022
C115
0.
0.
R
+
R202
C94
22u1
C93
22u1
R1
36
Q39
4.7K
Q38
4.7K
R1
36
R1
36
Q40
4.7K
Q41
4.7K
R1
36
R22
1u50
3
D33
33K
∗
B
Q15
C2
ACC
P-ANT
∗
R17
R16 1K
0.01
15
14
3
13
C109
0.1
C107
0.1
C108
0.1
75
D8
C1
D42
∗
D
L4
22uH
Q16
C23
+
3900u16
D41
+
C24
100u16
+
4.7u25
D40
C100 10u16 R190
+
IC11-13
4.5V PRE OUT
OPE-AMP
10
92
83
74
65
J1
FUSE
15
12
11 6
CN1
1
4.5V
PRE OUT
DC/DC
CONVERTER
AVR
F1 10A
116
2
314
413
5
710
89
10 1
9
2
8
3
74
65
B.U.
GND
ILLUM
ACC
PHONE
P-CON
EXT CONT
P-ANT
REAR Rch+
FRONT Rch+
REAR RchFRONT RchREAR LchFRONT LchREAR Lch+
FRONT Lch+
Rch
GND
Lch
Lch
GND
Rch
Rch
GND
Lch
L1
∗
∗
∗
B
C106
C105
C101
C102
C104
C103
D1
R136 10K
R135 10K
R134 1K
3
5
2
4
2200P
2200P
2200P
2200P
2200P
2200P
D25
D24
R133
CN2
470
4O-CE
R132
470
3O-CLK
R131
470
34
2O-DATA
R130
1K
1REMO
D23
47
46
45
13
4.5V PRE OUT DC/DC
10.6V
10.4V
0V
0V
C25 2.2
C26 2.2
0V
-10V
AUDIO POWER IC
D38
D37
2
3
4
5
C112
0.22u50
C113
0.22u50
D39
82 22K
IC13
C9982R189
10u16
+
∗
R191
180
C9582R185
10u16
+
IC11
C96
10u16
+
∗
R192
180
∗
R194
180
C98 10u1682R188
+
IC12
C97
10u16
+
IC7
1
BOOST
2
3
4
R186
R187
∗
R193
V+
CAP+
OSC
GND
LV
CAP-
VOUT
14
0V
D35
D36
3
6.8V
5
6.8V
6.8V
7
9
6.8V
11
6.8V
13
0V
15
6.8V
17
6.8V
19
6.8V
21
6.8V
23
6.8V
25
R184
0V
9.7V
8
7
VDD
1
0V
R183
22K
R179
22K
0V
9.7V
8
756
VDD
1
0V
R180
22K
82
R182
22K
0V
9.7V
8
VDD
17
0V
R181
22K
82
180
8
10.6V
7
6
5
IC4
TAB ST- BY
OUT2(-)
OUT2(+)
OUT1 (-)
OUT1 (+)
IN1
PRE-GND
IN3
OUT3(+)
OUT3(-)
OUT4 (+)
OUT4 (-) MUTE
DIAGNOSIS GND4
0V
0V
6
5
2
3
0V
0V
0V
2
0V
0V
6
2
0V
7
X25-9172-71 (1/5)
10
JIHGF
V
C
C
LEVEL
R20
3
KDC-M907
R42
D18
ENTAL STABILISER
7.5K
Q19
4.4V
6.8V
6.8V
6.8V
.4V
4.3V
Q42
4.7K
Q43
4.7K
V
17
0V
0V
R166
360
R165
360
C118
1u50
+
C117
1u50
C30 0.022
C115
0.22u50
0.22u50
R203 4.3K
+
R202
C94
22u16
C93
22u16
R161
360
Q39
4.7K
Q38
4.7K
R162
360
R164
360
Q40
4.7K
Q41
4.7K
R163
360
R22
270K
R21 56K
+
1u50
C116
33u16
+
C114
C111
R204 10
D33
33K
+
+
R23
Q20
TH1
Q38-43
Q21
47
10K
R24
14
AUDIO MUTE SW
∗
C89
+
∗
C90
+
∗
C92
+
∗
C91
+
Q22
12 24
11
22K
D32
C31 0.01
R25
23
R201
D31
C32
4.7u25
R26 91K
++
91K
C33
4.7u25
R200
220
15
5
3
IC5
HPF & LPF &
NON-FAD SW
EXT. AMP
CONT SW
∗
47K
ACC
11
14
Q29
2.2K
D15
13
∗
B.U. 5V AVR SW 5V
D2
R1
22k
+
C3
220u16
C4
D3
0.01
∗
B
C86 0.1
C88 0.1
C85 0.1
C87 0.1
4.1V
4.1V
4.1V
47K
C41
R41
0.01
3.3K
1/2W
R38
R37
C40
D17
1000P
12K
12K
B.U. DETECTOR
47K0.01
R34
∗
560
R33
∗
R35
C37
14
∗
∗
Lch MUTE DRIVE Rch MUTE DRIVE
D21 D22
19
R5
220
Q6,7
AUDIO 8V AVR
ON/OFF SW
Q1
Q2
R2
100
C5
10u16
+
C6
100u6.3
+
IC5
4.1V
1
AUX1 INL
4.1V
2
AUX1 INR
3
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
MUTE
4
CR1
5
CR2
6
CL1
7
CL2
8
AUX2 OUTR
9
AUX2 OUTL
10
HP FLOUT
11
HP FROUT
12
OUT REF
13
HP RLOUT
14
HP RROUT
DGND
AGND
CREF
HP FL1
HP FL2
HP FR1
HP FR2
HP RL1
HP RL2
HP RR1
HP RR2
∗
W4
∗
W3
∗
W2
∗
W1
ACC DETECTOR
Q32
0.01
C42
18K
R43
R39
5.6K
DIMMER
CONTROL SW
D16
77
∗
31
Q33 Q34
22K
22K
15
R44
R40
Q31
22K
R36
Q30
47K
47K
C38
15
0.022
3
18
Q8
AUDIO 8V AVR
IC3
47K
VCC
SDA
SCL
Q7
22K
47K
R3
22K
8.2V
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VREF
VIN
GND
22K
Q6
0V
Q3
R4
C58
2.2K
0V
0V
C76
1u50
4.1V
+
C77
0.33u50
4.1V
+
1.5V
C78
0.33u50
4.1V
+
1.5V
C79
0.33u50
4.1V
+
1.5V
C80
0.33u50
4.1V
+
1.5V
1.24V13.7V
100K
100K
0.01
C39
22K
R6
15K
26
C81
0.33u50
C82
0.33u50
C83
0.33u50
C84
0.33u50
1u50
22K
16
POWER-ANT SW
∗
W5
∗
Q24
22K
R28
D11
∗
1K
D10
+
28
30
P-ANT
3
R45 4.7K
5.0V
∗
Q23
10K
47K
R46
1/2W
1/2W
∗
R27 1K
∗
IC9
MUTE LOGIC
C50 0.01
5
R8
24K
C7
1
+
C8
R7
4.3K
220u10
SW 14V AVR
Q4
22K
Q5
D13
1K
R30
D12
∗
R29 4.7K
33
0V
14
13
VDD
1
2
5V
0V
3
5V
0V
Q9
R9
1.5K
22K
22K
22K
D4
Q25
C34
R31
1K
R32
1/2W
22K
Q26,27
POWER-CONT
1/2W
PROTECTOR
121110
4
SERVO AVR
C9
100u10
Q25,28
POWER-CONT SW
+
Q26
3.3u35
C35
0.068
5V5V
9
8
5V
0V
GND
5
6
7
5V
0V
25
27
∗
A
+++
C10
100u25
0V
C11
Q27
22K
14.4V
100u25
D14
22K
C36
0.1u50
Q28
5V0V
0V
I
0.01
C14
44
83
34
4.1V
10u10
5V
0V
ACOUT R
C67
∗
NOISE
BUFFER
4.7K
R151
Q37
0V-3.6V
22
SMUTE
ACOUT LNCACIN LR
35
36
37
4.1V
4.1V
C65
10u10
10u10
R152 330K
4.7K
4.1V
21
19
20
NC
QUAL
SPANA R
3.8V
0V
IC2
E-VOL & N.C.MPX
ACIN RF
ACIN RR
39
38
4.1V
C66
10u10
L7
4.7uH
17
5V
0V
Q36
22K
22K
E-VOL MUTE SW
0V
C61
0.01
C60
+
47u10
8.2V
4.1V
4.1V
4.1V
4.1V
23
SCL
24
SDA
25
NC
26
GND
27
VDD
28
NC
29
OUT RR
30
OUT RL
31
OUT FR
32
OUT FL
33
NC
C68
∗
R153 330K
4.1V
18
ACIN LF
41
40
SPANA L
VREF
C62
∗
NC
CREF
42
4.1V
2.2u50
C69
0-4.3V
2.7-4.9V
151617
MPOUT
+
43
4.1V
115
R154
4.7k
MPIN
TAPE L
0.47u
D29
0.1
C70
0-4.3V
14
C6
+
X25-9172-71 (2/5)
11
K L M N O
R120 33K
24
NC
CREF
57
100
25
M
MUTE L
KDC-M907
NT SW
Q27
22K
D14
22K
+
C36
0.1u50
10K
Q28
47K
5V
0V
V
14.4V 4.7V
CD-MECHA 4.7V SW-REG
12345
IC6
+
u
0.01
C14
0.01
C54
32
VIN
VOS
GND
SWOUT
ON/OFF
IC10
17
4.1V
10K
R142
2
4.1V
3
4.1V
10K
R141
4
0V
GND
SPECTRUM
ANALYZER
OPE-AMP
1K
R148
+
D27
C52
4.7u25
47K
R147
CD 4.7V SW-REG
ON/OFF SW
2.4V
0V
Q10
0V
3.3V
VDD
R48
47K
47K
R49
C53
R47
C150
8
6
5
R146
4.7u25
43
47K
0.22
8.2V
4.1V
15K
R145
4.1V
820
R144
R143
4.1V
C51
4.7u25
+
+
C55
4.7u25 47K
L2
R140 47K
C12
220u16
C56
4.7u25
Q35
SPECTRUM
ANALYZER
AGC
+
+
C13
220u16
+
150
R10
R11
120
680
R12
Q35
33K
+
220uH
D5
0V
4
3
IC8
RESET IC
1
2
5.0V
5.0V
220
R62
R61
C48
10K10
31
32
∗
R123
33
1K
34
C45
32.768kHz
22P
C46
X2
22P
C47 1
3.4V
X1
15K
R50
∗
R51 47K
∗
∗
43
44
45
46
47
48
R55
100K
R56
100K
20.0MHz
5.0V
∗
R52 100
∗
R53 100
∗
R54 100
0 or 5V
0 or 5V
R58 100K∗R59 100K
∗
0V
31
EXT-AMP-CONT
32
P-CON
33
ANT-CON
34
RESET
35
XT1
36
XT2
37
REGC
38
X2
39
X1
40
VSS
41
VDD
42
CLKLOT
43
CD MECHA+B
44
P-ON
45
O-DATA
46
O-CLK
47
O-CE
48
ILL-ON
49
TYPE0
50
TYPE1
5V
0V
28
30
R122 2.2K
3029282726
N.C
DIMMER
ACC-DET
5V
0V
5V
0V
5V
0V
3.4V
0V
5V
0V
5V
0V
5V
0V
TYPE2
51
27
BU-DET
IC2TYPE0
52
535455
26
SW5V
IC2TYPE1
N.C
R121 100K
5V
0V
5V
0V
N.C
25
R119 47K
25
MUTE
M-MUTE R
56
-
57
C69
∗
0-4.3V
2.7-4.9V
15
161314
MPOUT
MPX
43
4.1V
+
115
R154
4.7k
MPIN
TAPE L
0.47u50
∗
11
R232
2.2K
NC (SW4)
63
SW3
L5
4.7uH
BU 5V
D GND
0.01
C43
654310 9 8 714 13 12 1118 17 16 15
D GND
4.7V
4.7V
C44
47u6.3
64
LO/EJ
+
65
21
MOSW
SERVO+B
GND
SERVO
LEVEL
4.1V
44
TAPE R
D30D29
R155
C71
150P
4.7K
C72
0.47
4.1V
12
NC
MPX
5V
0V
NC (PHONE+)
NC (PHONE-)
CDR OUT
C64 0.47u50
+
AFS
CDL
CDL OUT
CDGND
CDR
CN3
NC
AM
NC
R231
2.2K
11
10
9
8
7
6
5
4
3
2
1
D OUT
94
SW2
4.1V
4.1V
4.1V
4.1V
∗
R230
4.1V
2.2K
C74
4.1V
6
8
93
SW1
21 20 1924 23 22
∗
C73
∗
R156
16
17
MS DA
MS CLK
Lch
AUDIO 8V
AGND
Rch
56
57
MUTE L
MUTE R
60
M RST
61
M STOP
0.1
C70
0-4.3V
C63
+
to CD MECHA (X92-4460-00 : DXM-6400W)
X25-9172-71 (3/5)
12
R57
100K
71
72
3
4
IN1
IN2
IC15
MOTOR
DRIVE IC
NC
OUT2
8
7
C133 C132
7.5V
0.22 0.22
798182
6543
7
MASK -
MASK SW1
MASK SW3
GND
5V
0V
CN5
0V
5
6
0V
S-GND
P-GND
to MASK PANEL MECHA
2
NC
OUT1
9
80
2
1
MASK +
MASK DET
MASK SW2
7.5V
10 1
7.5V
VCC
NC
B.U
C142
R215
8
+
0.47u50
10
R211
CHCON
Rch
0 or 5V
R60 100K
∗
6
D44 D43
7
4.7K
DGND
0 or 5V
R64 100K
R63 100K
D45
R199
1K
C143
0 or 5V
0.01
R210
R69
100
1K
R67
100K
56
89
+
C140
47u6.3
4.7
R213
R212
AGND
REQH
15
62
73
48
1K
R68
88
4.7K
MUTE
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