Kenwood KRC-108S, KRC-165, KRC-189 Schematics
A B C D E
1
5
100
+
N
N
C
O
M
E
4
N
3
2
1
0
1
0
K
KRC-108S/165/189
(REVISED)
1
FRONT L
FRONT R
P. CON/ANT. CON
ACC
GND
WHT/BLK
GRY/BLK
BLU/WHT
2
FRONT L
WHT/BLK
FRONT R
ANT. CONT
P. CONT OUT
ACC
ANT.
CONT
ACC
GND
GND
FRONT L REAR L
FRONT R
ANT. CONT
ACC
3
4
5
6
7
WHT
8
9
7
10
6
11
GRY
5
12
4
13
3
14
RED
2
15
BLK
1
16
DC CORD
(E30-4783-05)
KRC-108S
WHT
8
9
7
GRY/BLK
GRY/BLK
10
6
11
GRY
5
12
BLU
4
13
BLU
3
14
RED
2
15
BLK
1
16
DC CORD
(E30-4784-05)
KRC-189/KRC-165
8
9
7
10
6
11
GRY
5
12
BLU
4
13
3
14
RED
2
15
BLK
1
16
DC CORD
(E30-6032-05)
RX-290
GRN
GRN/BLK
VIOL/BLK
VIOL
YEL
GRN
GRN/BLK
VIOL/BLK
VIOL
YEL
GRNWHT
GRN/BLKWHT/BLK
VIOL/BLK
VIOL
YEL
REAR L
REAR R
REAR L
REAR R
REAR R
BATT
SYNTHESIZER UNIT
J2
9101112 13 14 1516
8765 4 3 21
FL-
RL-
FR-
FL+
21
∗
R370 4.7K
BU
∗
∗
∗
∗
R350 4.7K
Q350,353
P-CON
DRIVER SW
Q351
P-CON
PROTECTION
WH1
T.MUTE
GND
MOT GND
MOT +B
PACK IN
GND
SW
Q352
P-CON
PROTECTION
PROHIBIT SW
Q353
6
5
4
3
2
1
BU
BU
RL+
17
D370
Q371
47K
D350
R351
1/2W
47K
23
1K
10K
Q260,261
RR-
375
19
∗
R371
1K
1/2W
∗
R373
1K
10K
1/2W
ANT-CON
DRIVER SW
W83
∗
R353
D260
MOT+B SW
Q260
47K
10K
FR+
9
P-CON
1K 1/2W
Q352
C352
0.1u50
Q261
RR+
∗
∗
R352
R260
Q370
R372
22K
22K
+
1K
14
D261
R261
1/2W
∗
C350
3.3u25
10K
P-ANT
D371
Q350
+
Q351
C351
D352
10K
1
10K
15
W121
∗
∗
Q59
22K
Q58
47K
P-CON
∗
Q355
10K
D351
Q354
10K
Q60,61
ILL+B DRIVER
22K
R67
1K
Q58,59
47K
ILL+B SW
ACC
R55
ACC
DET SW
47K
47K
Q60
D56
GND
R50 3.3K 1/2W
47K
D52
52
55
53
Q61
F1 10A
D50
C50
3300u16
49
+
C52
0.01
R57
47K
Q62
R68
100K
(X14-9430/9360-xx)
B.U
L1
R54
10K
Q50
R69
22K
Q50
B.U DET SW
100u16
D54
C54
0.01
C55
10u10
+
C56
100u6.3
+
P-ON 5V
SW
R301
47K
R300 47K
2
3
4
5
6
7
8
9
11
14
15
17
10
18
26
27
28
30
D51
33K
R52
C53
+
R59
100
B.U. 5V
DRIVER
R303 47K
D100
D101
D102
D103
R107 2.2K
D104
R108 47K
R109 47K
R111
100K
R128
10K
R112
4.7K
R113 1K
R115 1K
R114 10K
R58
22K
Q51
Q52
Q53
10K
56
R103 10K
R302 47K
R129 10K
W87
D53
47K
R102
10K
1
2
VL
3
KI0
4
KI1
5
KI2
6
KS
7
KS
8
KS
9
KS
10
TU
11
KS
12
BE
13
RE
14
M
15
FF/
16
PA
17
KI3
18
FW
19
20
21
22
23
24
25
26
SD
27
TU
28
TU
29
30
AM
0V
R130 1
W88
R
1
R11
10
X14-9430/9360-xx (1/4)
6
JIHGF
N
2
O
4
1K
X
X
KRC-108S/165/189
∗
IT
x)
A
J5
D53
51
52
R
53
47K
10K
R102
10K
100
1
1.8V
2
VL1
3
KI0
4
KI1
5
KI2
6
KS0
7
KS1
8
KS2
9
KS3
2K
10
TUN SMETER
11
KS4
12
BEEP
13
REMO
14
MOTOR
15
FF/REW
16
PACK IN
17
KI3
18
FWD/REV
19
20
21
22
23
24
25
26
SD
27
TUN SCL
28
TUN SDA
29
30
AM+B
5V
0V
R130 10K
W88
R132
10K
R119
10K
99
VL2
0V
FM+B
31
31
R156
180K
C159
100u10
C160
10u16
Q151
47K
54
R101
10K
3.4V
0V
R117
C161R154R155
750
430 1u50
+
+
48
5.0V
4V
0V
SCK
32
333435
1K
R118
32
+
R14
4.7K
C16
0.22u50
TH1
R153
91K
1K
R152
10K
4.7K
R151
47
Q151
FORCED
DISCHARGE SW
97
95
96
9897969594
VL3
COM1
COM2
COM3
5V
5V
0V
SDA
RESET
0V
1K
C104 0.1
R131 47K
33
14.0V
0V
4.5V
246
VCC
GND
STBY
TAB
RR-
RR+
1
357
0V
7.2V
7.2V
7.2V
5
+
C162
1u50
23
D151
D150
33K
R158
51 3
PRE OUT
50
MUTE SW
C101
0V
0.01
93
9291908988878685848382
VCC
VREF
AVSS
5.0V
SYSTEM u-COM
5V
XIN
363738
X1
8.000MHz
22P
C102
D13
R133 10K
7.0V
7.0V
0V
7.2V
8
10121416182022
SVR
GND
7.0V
FR-
9
7.2V
7
∗
Q153
22K
908988
SEG1
SEG2
FR+
9
22K
R16
C18
0V
SEG3
11
4.7K
0.22u50
0.01
C164
RR IN
FR IN
GND
131517
0V
25
MUTE LOGIC
IC
0V
R134
47K
C60
0.22
87
86
858483
SEG5
SEG6
SEG4
FL IN
R13
C15
4.7K
0.22u50
5V
SEG7
IC1
XOUT
VSS
IC2 TYPE1
IC2 TYPE2
39
404142
4344454647
0V
0V
C103
0V
22P
R125 47K
R127 47K
5.0V
R121 47K∗R120 47K
∗
7.0V
AC GND
RL IN
24
0V
46
SEG8
SEL1
R123 47K
∗
14.0V
0V
0V
3.8V
24
VCC
GND
GND
MUTE
RL+
RL-
FL+
FL-
21
19
23
25
7.2V
7.2V
7.2V
7.2V
21
23
19
17
IC3
1
2
3
4
5V
5
6
7
0V
GND
81
82
81
SEG9
SEG10
EQ-MUTE
5V
0V
PORT ON/OFF 55
ANT. CON
5V
P-MUTE
0V
SEL2
MUTE
STBY
SVR
ACC DET
484950
0V
49
484746
R122 47K
∗
∗
IC4
CD
VDD
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SW5
ILLON
P-CON
BU DET
50
0V
R15
C17
0.22u50
14
13
12
11
10
9
8
4.7K
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
26
5.0V
IC4
POWER IC
D152
0V
0V
Q63
47K
RESET IC
IC6
1
5.0V
2
3
25
26
24
100
R157
Q301
RESET
5V
LOGIC
INVERT SW
100
R135
5V
0V
80
79
78
77
76
75
74
73
72
71
70
69
Q301
47K
47K
IC2
C152
1u50
2827252426
VREF
1
+
8V SW
ACOUT L
ACOUT R
CREF
2
R65
2.2 1/2W
R66
2.2 1/2W
Q55
22K
C13
OUT LF
TAPEL
0.22
3
22K
OUT LR
OUT RF
4.1V
TAPER
4
C14
0.22
4
Q54
47K
53786
47K
23
CDR
IC5
EQ AMP
2.2K
CN2
12
11
10
9
8
7
6
5
4
3
ILL +B
2
5.6
1
ILL GND
56
10K
54
53
52
51
5
4
R307
R110 1K
17
11
9
8
7
6
R106 1K
5
R105 1K
4
R104 1K
3
2
PL1
∗
PL2
∗
R340
REAR PRE OUT
1 Rch
100
R452
R454
30K
Q450
4.7K
PREOUT
270
R450
MUTE SW
+
C450
10u16
C150
23
IC2
E-VOL.
3.4V
OUT RR
CD GNDAMPH+
8V DRIVER
47u10
+
C151
0.01
8.3V
22
VDD
4.1V
PH-
CD L
9
11
10
0.22
C153
C154
0.015
4.7K
2.7K
R207
R206
Q56
Q57
R64
R63
1K
1K
+
C57
R62
10K
100u16
+
100u10100
R3
C5 C9
100P
1.3V
120K
R5 R6
6.8K
0.022
0.8V
8
7
L IN
L NF
(X13-9660-10/X16-1500-20)
RST
KI3
KS4
KS3
KS2
KS1
KS0
KI2
KI1
KI0
CN1
RST
12
11
KS4
10
KS3
9
KS2
8
KS1
7
KS0
6
5
4
3
2
D7D8D9
R3
R4
330
1
(REVISED)
2 Lch
C452
0.01
100
R453
R455
30K
Q451
4.7K
270
+
C451 R451
10u16
L3 4.7uH
32
33
22K
5V
0V
0V
21
1819151716
20
SCL
SDA
GND
QUAL
MUX R
SMUTE
4.0V
MPX
LEVEL
12
0.1
C155
C157
150P
C156
0.033
C58
D55
3
R7
C7
3.3V
6
L OUT
KI3
KI2
KI1
KI0
D12 D11 D10
330R2330R1330
R150
4.7K
+
10
R250
100u10
C250
100u10+C8
+
8.3V
0V
5
4
VCC
GND
D6 D5 D4
D3 D2 D1
4.8V
3.3V
3
13
Q150
MUX L
MP IN
0.1
C158
4
R8
120K
0.022
R OUT
22K
MP OUT
14
KI2
KI1
KI0
KI3
18
C251
0.047
C10
100u10
R4
100
6.8K
0.8V
2
MODEL NAME
KRC-108S
KRC-189
KRC-165
RX-290
1
VOL-
3
Q200,201
FM+B S
R201
22K
Q200
31
30
Q150
E-VOL.
MUTE SW
C3
47u6.3
+
C6
100P
R NF
KS4
C4
22K
22
+
47u6.3
1
R IN
V
R200
B30-1565-05D1-12 :
X14-9430/9360-xx (2/4)
7
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