Kenwood KDC-8021 - Page 15

A BDFHJCEG I
2
1
3
5
7
4
6
D1
J1
D42
D41
D40 D39
D35 D36
D37
D38
D32
D31
D33
CN1
Q42
Q43
Q41
Q40
Q39
Q38
CN2
D23
D24
D25
CN3
Q36
Q37
D30D29
Q9
D4
Q7
Q8
Q6
Q5
Q4
Q3
Q2
Q1
D3
D2
Q27
Q28
D14
Q26
Q25
D10
D11
D13
Q30
Q31
Q32
D18
D17
Q33 Q34
D21 D22
D8
Q16
Q15
Q20
Q18
Q17
D9
Q19
Q21
Q22
E-VOL & N.C.MPX
POWER IC
CD-MECHA 4.7V SW-REG
4.5V PRE OUT DC/DC
MUTE LOGIC
B.U. 5V AVR SW 5V
SW 14V AVR
AUDIO 8V AVR
SERVO AVR
DIFFERENTAL STABILISER
POWER-ANT SW
POWER-CONT SW
POWER-CONT
EXT. AMP
B.U. DETECTOR
ACC DETECTOR
Lch MUTE DRIVE Rch MUTE DRIVE
E-VOL MUTE SW
AUDIO MUTE SW
DC/DC
PRE OUT
OPE-AMP
4.5V PRE OUT
CONTROL SW
DIMMER
ON/OFF SW
AUDIO 8V AVR
NON-FAD SW
HPF & LPF &
BUFFER
NOISE
CONVERTER
AVR
4.5V
RCA CORD
N-FADER
REAR
FRONT
CONT SW
PROTECTOR
4.7K
4.7K
4.7K
4.7K
4.7K
4.7K
Q6,7
47K
2.2K
47K
47K
47K
10K
22K
22K
47K
10K
22K
22K
22K
22K
47K
47K
22K
22K 22K
22K
22K
22K
22K
22K
4.7K
5V
0V
0-4.3V
4.1V
2.7-4.9V
4.1V
4.1V
0V-3.6V
0-4.3V
3.8V
0V
5V
0V
4.1V
4.1V
4.1V
4.1V
8.2V
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
0V
1.24V13.7V
6.8V
6.8V
6.8V
6.8V
6.8V
0V
6.8V
6.8V
6.8V
0V
6.8V
0V
14.4V
0V
6.8V
6.8V
6.8V
14.4V
0-4.3V
6.8V
0V
6.8V
0V
5V
0V
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
4.1V
1.5V
1.5V
1.5V
1.5V
0V
0V
8.2V
0V
5V
14.4V
0V
10.6V
0V
-10.0V
0V
10.4V
10.6V
5V
0V
0V
5V
0V
5V
5V
0V
0V
0V
5V0V
5V5V
0V
5.0V
0V
0V
0V
-9.3V
9.7V
0V
0V
0V
0V
0V
0V
-9.3V
0V
0V
0V
9.7V
-9.3V
0V
0V
0V
0V
0V
0V
9.7V
4.1V
-10V
0V
0V
IC4
IC5
IC13
IC12
IC11
IC2
IC3
IC6
IC9
IC7
(X25-91XX-XX)
KDC-PSW9521/M9021/8021
(E30-4956)
KDC-MP919
DC CORD
(E30-4940)
KDC-X859/X759
(E30-4939)
DC CORD
KDC-9020R
(E30-4942)
DC CORD
0.01
C2
3900u16
C1
R136 10K
710
89
12
11 6
413
5
2
314
15
116
10A
3
5
2
4
15
2
14
3
13
4
7
6
C115
1u50
C116
33u16
5
3
14
2
21
19
13
11
9
17
15
25
23
20
12
10
8
18
16
14
24
22
0.22u50
C114
0.22u50
C112
0.22u50
C113
0.22u50
C111
2
3
4
5
+
+
R204 10
R203 4.3K
22K
R201
220
R200
23
1u50
C117
33K
R202
TH1
SDA
AUX1 INR
HP FR1
AUX2 OUTL
HP RL2
HP RL1
HP FR2
HP RR2
HP RR1
HP RROUT
HP RLOUT
HP FROUT
HP FLOUT
15
16
17
18
19
20
14
13
12
11
10
9
OUT REF
AGND
DGND
HP FL2
HP FL1
CREF
AUX2 OUTR
24
21
22
23
25
26
27
SCL
5
8
7
6
CL2
CL1
4
3
2
CR2
CR1
MUTE
28
1
AUX1 INL
C86 0.1
C88 0.1
C85 0.1
C87 0.1
1u50
0.33u50
C77
0.33u50
C81
0.33u50
C78
0.33u50
C82
0.33u50
C79
0.33u50
C83
0.33u50
C80
0.33u50
C84
C108
0.1
C107
0.1
8
65
74
2
10 1
3
9
2200P
C106
2200P
C105
2200P
C101
2200P
C102
2200P
C103
2200P
C104
0.1
R173
10K
R175
10K
R176
10K
R174
10K
R177
10K
R171
2.2K
R178
10K
R172
2.2K
C100 10u16 R190
22u16
C94
360
R166
R184
10u16
C99
82
R189
22K
R183
360
R165
22u16
C93
1
VDD
8 7
2
4
3
VSS
6 5
17
8
VDD
2
3
4
VSS
6 5
C98 10u16
82
R188
22K
R182
360
R164
22K
R181
10u16
C97
360
R163
82
R187
VSS
1
4
3
2
VDD
8 7 5 6
10u16
C95
82
R185
360
R161
360
R162
22K
R179
22K
R180
82
R186
10u16
C96
1REMO
4O-CE
2O-DATA
3O-CLK
470
R133
470
R132
470
R131
1K
R130
47
46
45
13
24 23
D OUT
SW2 94
C62
2.2u50
C66
10u10
C65
10u10
C69 0.1
R152 330K R153 330K
R151
4.7K
TAPE R
44
41
40 39 43
42
2
1
3
6
5
4
7
NC
10
9
8
11
12
NC
15 16 17 13 14
35
34
38
37
36
31
32
33
27
28
29
30
21 22
NC
18 19 20
24
25
26
23
ACIN LF ACOUT R ACOUT L NC ACIN LR ACIN RF ACIN RR VREF CREF TAPE L
MPOUT
QUAL
SMUTE
SPANA R
SPANA L
MPIN
LEVEL
MPX
NC
OUT FR
OUT FL
OUT RL
NC
GND
NC
OUT RR
VDD
SCL
SDA
CDL OUT
CDR OUT
CDGND
CDR
NC (PHONE+)
NC (PHONE-)
AFS
CDL
NC
NC
AM
4.7k
R154
0.1
C70
150P
C71
4.7K
R155
0.47
C72
10u10 10u10
0.01
C61
C60
47u10
4.7uH
L7
C9
100u10
R9
1.5K
C8
220u10
R7
4.3K
C7
1
R8
24K
R4
2.2K
R3
22K
C6
100u6.3
C4
C5
10u16
0.01
C3
220u16
R1
22k
100
R2
220
R5
15K
R6
VREF
GND
VIN
100u25
C14
0.01
C11
100u25
C10
1 2 3 4 5
VIN
SWOUT
GND
VOS
ON/OFF
C36
0.1u50
1/2W
R30
1K
C35
0.068
C34
3.3u35
22K
1K
1/2W 1/2W
22K
R31
1/2W
1K
R32
R45 4.7K
R29 4.7K
R36
100K
C38
0.022
47K0.01
560
1u50
C39
C42
0.01
C40
1000P
C41
0.01
R41
3.3K
1/2W
47K
R42
100K
R44
22K
R40
18K
R43
5.6K
R39
12K
R38
12K
R37
14 13 12 11 10 9 8
VDD
1
2
3
4
5 6
7
GND
25
27
C50 0.01
CAP+
R17
4.7u25
C23
C24
100u16
3
4
GND
CAP-
22uH
75
L4
2
1
BOOST
47
R23
OSC
6
5
LV
VOUT
2.7K
R18
7
8
V+
47
R19
R20
7.5K
R22
270K
91K
R25
4.7u25
C33
10K
R24
4.7u25
C32
C31 0.01
R26 91K
C30 0.022
R21 56K
C25 2.2 C26 2.2
R16 1K
2.2
C27
2.2
C28
22u16
C29
3
5
15
L1
C54
0.01
10K
R141
10K
R142
2.2K
R231
5 3
15
15
2
14
13
4
3
C64 0.47u50
14
11
12 24
77
31
30 33
32
19 18
28
83
115
44
Q17-22
IC11-13
Q38-43
Q26,27
Q25,28
IN2
OUT4 (-) MUTE
DIAGNOSIS GND4
OUT4 (+)
IN3
OUT3(+)
OUT3(-)
AC-GND
GND3
VCC1
IN1
PRE-GND
IN4
OUT1 (-)
OUT1 (+)
GND1
SVR
OUT2(-)
OUT2(+)
VCC2
TAB ST-BY
GND2
O-CE O-CLK
REMO O-DATA
PHONE
P-ANT
ACC
P-CON
GND
ILLUM
B.U.
12
34
Lch
GND
Rch
Rch
Rch
Lch
Lch
GND
GND
14
11
26
1u50
C118
C76
180
180
180
180
IC5
0.47u50
C63
FRONT Rch+
FRONT Rch-
FRONT Lch-
FRONT Lch+
EXT CONT
REAR Rch+
REAR Rch-
REAR Lch-
REAR Lch+
VIOL GRY
REAR L
REAR R FRONT R
FRONT L
GRN/BLK
GRN
89
710
VIOL/BLK
12
6
5
11
WHT/BLK
WHT
GRY/BLK
B.UP
ILLUMI
ANT CON
P. C ON
3
4
14
13
YEL
ORG/WHT
2
1
15
16
BLU/WHT
BLU
BLK
RED
ACC
GND
REAR L
REAR R
GRY/BLK
WHT
WHT/BLK
GRY
10 7
GRN
98
VIOL/BLK
GRN/BLK
VIOL
11
5
6
12
FRONT L
FRONT R
ORG/WHT
B.UP
ILLUMI
RED
BLK
BLU
BLU/WHT
15 2
13
14
4
3
YEL
16 1
P. C ON
ANT CON
ACC
GND
PNK/BLK
CONT
EXT.
ORG/WHT
PMK/BLK
RR-
RL+
RL-
CONT
EXT.
RR+
TEL MUTE
P.CON
RED
FR-11 6
WHT/BLK
WHTGRN
GRN/BLK
98
710
FL+
FL-
BLU/WHT
BLU/WHT
GRY
GRY/BLKVIOL/BLK
VIOL
13 4
512
BRN
215
314
FR+
BLKYEL
116
ILLUMI
GND
ACC
7
8
B.UP
35
46
1
A
2
7
8
FL-
RL-
RL+
3
4
5
6
1
2
B
RR-
FR+
FL+
FR-
RR+
10
74
65
83
92
1
FUSE
82 22K
0.01
C58
VCC
ANT CONT
P CONT
+
+
16
17
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
++
+
+
+
∗
D
∗
B
∗
B
∗
B
∗
A
∗
Q23
∗
Q24
∗
Q29
∗
D15
∗
D16
∗
D12
∗
C109
∗
R167
∗
R168
∗
R170
∗
R169
∗
C91
∗
C89
∗
C90
∗
R193
∗
R194
∗
R192
∗
R191
∗
R28
∗
R46
∗
R27 1K
∗
W5
∗
R34
∗
C37
∗
R35
∗
R33
∗
R134 1K
∗
R135 10K
∗
C68
∗
C67
∗
W4
∗
W3
∗
W1
∗
W2
∗
C92
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list). indicates
safety critical components. For continued protection against risk of fire, replace only with same type and rating fuse(s). To reduce the risk of electric
shock, leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the
appliance is returned to the customer.