Kenwood KRC-366, KRC-466, KRC-566 Schematics
A B C D E
MS 0V (R)
M
M
M
5
5
GRN
8
9
GRN/BLK
7
10
VIOL/BLK
6
11
VIOL
12
5
4313
14
15
2
YEL
16
1
DC1
(E30-4784-05)
GRN
8
9
GRN/BLK
7
10
VIOL/BLK
6
11
VIOL
5
12
4
13
3
14
2
15
1
16 BATT
DC1
ILL
OFF
A8VPMAM41PIN40PIN
ON
ON
ON
C212-217,308,330,
C104,
503,504,519,520
332
YES
NO
NO NO
YES
YES
Q190
L306
YES
NO
NO
YES
NO
YES
MODE
REAR L
REAR R
u-COM(EN3)
38PIN
39PINLP-ANT
L
L
HOFF
H
H
HON
C331
10P
0.01
0.01
R106,144,145,
199,505,523,524
YES
NO
NO
FWD/REV
FWD/REV
POWER SUPPLY
P-CON
OFF
OFFL
D102,103,
CN5
106,108
YES
NO
YES
YES
R183,184,197,
198,519-522
NO
YES
YES
1
2
3
4
5
ACC
GND
(X14-6880-XX)
RX-391 (J)
KRC-566 (M)
KRC-366 (M)
KRC-466 (M)
NAME No.
RX-391 (J)
KRC-566 (M)
KRC-366 (M)
KRC-466 (M)
FRONT L
FRONT R
ANT. CONT
P. CONT
ANT CONT
P. CONT
ACC
WHT
WHT/BLK
GRY/BLK
GRY
BLU
BLU/WHT
RED
BLK
WHT
WHT/BLK
GRY/BLK
GRY
BLU
BLU/WHT
RED
BLK YEL
(E30-6027-05)
u-COM(EN1)
u-COM(EN2)
UNITMODEL
No.NAME
0-01 NO YES
0-20 NOYES
0-21 NO YES NONO
UNITMODEL
0-01
0-20
0-21
POWER SUPPLY
37PIN
L
HON
POWER SUPPLY
L
OFF OFF
OFF
HLL
OFF
H
OFFONON
HLH
ON
OFF
AB
C
NO
YES
YES
IC5
HA12216F
HA12221F
HA12221F
CASSETTE MECHANISM
CME1 (D40-1150-05)
J3
E58-0880-05
E58-0879-05
E58-0879-05
+2V
PACK
PACK
+2V
PLAY
10
HEAD R
9
HEAD COM
HEAD L
8
GND
PACK IN
SUB(+)
SUB(-)
MODE+B
MODE
7
F/R
6
5
4
3
2
1
6
CAUTION : For continued safety, replace safety critical components only with
manufacturer's recommended parts (refer to parts list).
7
Indicates safety critical components. To reduce the risk of electric shock, leakagecurrent or resistance measurements shall be carried out (exposed parts are acceptably
insulated from the supply circuit) before the appliance is returned to the customer.
• DC voltages are as measured with a high impedance voltmeter. Values may vary
slightly due to variations between individual instruments or/and units.
HEAD
Rch
HD1
Lch
SIGNAL LINE
+B
GND LINE
B LINE
SUB
M1M2
MAIN
M
M
7
6
T-END
5
STBY
4
3
2
1
OFF
ON
ON
ON
M+R
GND
T-END
STBY
GND
BU14V
IC1
LC72366-9995
LC72366-9996
LC72366-9996
VR1,2
W6
YES
NO
NO
YES
NO
YES
MODE
MODE+B
SUB(-)
SUB(+)
PACK IN
GND
HEAD L
HEAD COM
HEAD R
GND
STBY
T-END
GND
M+B
(X14-6880-XX)
CN1
1
2
3
4
5
F/R
6
7
8
9
10
CN2
1
2
3
4
5
6
7
J4
159
GND
2
10
7611
43812
Rch
RST
S GND
R402 10
R403 4.7
R407 4.7K
+
+
C402 1u50
C403 100u10
13
Lch
DATA C
R401 10
R409 4.7K
C401 1u50
DATA H
R410 100
+
CLK
REQ C
R411 100
R408 4.7K
5V
IC10
0V
1
2
3
4
5V
0V
5
6
0V
7
GND
VDD
5.0V
14
+
13
5V
0V
12
11
10
9
5V
0V
8
5V
0V
MUTE DRIVE
7
5
C404 0.01
R415 100K
6
R412
100K
67
B.U.
CH-IN
D411
+B
D401
D402
D403
D404
D405
+B
CON
MUTE
REQ H
R404 100
R405 4.7K
R406 4.7K
D409
D408
D407
21
22
+B
64
R534 100K
R533 470 C532 0.01
R535
+B
470
9
7
69
R555 470
R553 470
70
+B
D551
470
R532
55
52
MAIN
MOTOR SW
Q551
1K
R552
10K
R551
1/2W
Q552
10K
10K
7
9
+5V
+5V
C533 0.22
+B
C512 1500P
+B
C511 1500P
15
11
C534 0.22
7.6V
7.6V
∗
VR2
10K
PLAY BACK
R514
150
R512 15K
R513
R511 15K
150
PLAY BACK
12
0V
6
7
8
9
10
+5V
13
14
SUB MOTOR
DRIVER
IC6
PGND
OUT2
NC
OUT1
NC
W512 0
R518 330K R516 12K
C514
22u6.3
+
C513
22u6.3
+
R517 330K R515 12K
10K
VR1
∗
SGND
VCC
C509
1u50
IN2
IN1
NC
∗
C516 0.01
3.8V
+
0V
3.8V
3.8V
3.8V
C515 0.01
∗
∗
5
4
3
2
1
R520
W511
R519
R521
5.1K
0
5.1K
4.3K
32
33
34
35
36
37
38
39
40
31
0V
5.0V
5.0V
7.7V
Q501
NFI (R)
R IN (R)
RIF
F IN (R)
GND
GND
F IN (L)
V REF
R IN (L)
NFI (L)
0.1u50
SUB MOTOR
AVR
59
60
+B
R524
∗
R523
∗
C517
+
W507
+
R537
C535 10u10
C536 0.1
22
+B
Q501
+B
4.3K
R522
+
C518
0.1u50
∗
0.1
C520
3.8V
3.8V
RAI (R)
D IN (R)
∗
IC5
EQUALIZER
AMPLIFIER
D IN (L)
BIAS
18K
R505
∗
∗
3.8V
PB OUT (R)
RAI (L)
PB OUT (L)
678
3.8V
3.8V
18K
3.8V
302928272625242322
M-OUT (R)
EQ OUT (R)
3.8V
M-OUT (L)
EQ OUT (L)
1
2
345
3.8V
3.8V
18K
+B
C508
R504
DET (R)
DET (L)
C519 0.1
∗
0.01
24K
21
9
F G H I J
100
27010u16
13
EQ MUTE
PB
OUT
(R)
RAI
(L)
51
F1
(F52-006-05)
GND
ACC
MU
C1
2200u16
D1
10A
+
B.U.
L1
+B
+B
4
R256
R255 33K
SVR
35
10
C255 1u50
+
C256 100u10
+
1K
Q251
10K
4
4.7V
2
468
GND
STBY
TAB
OUT2-
1
3
0V
7.3V
RR-
47K
00
W504W503
36
+B
14.4V
VCC
OUT2+
579
7.3V
7.3V
RR+
0V0V
GND
OUT1-
7.3V
FR-
OUT1+
FR+
R254
C254
0.22u50
7.3V
10
4.7K
10
SVR
RR
RR
R252
C252
0.22u50
FR
IC4
11
7.2V
4.7K
7.2V
7.2V
121416
IN2
IN4
IN1
GND
13
15
0V
7.2V
4.7K
R253
C253
0.22u50
FL
FR
0V
0V
7.3V
AC GND
IN3
4.7K
R251
C251
0.22u50
FL
RL
RL
+B
14.4V
182022
VCC
GND
OUT3+
OUT3-
192123
17
W502
FL-
FL+
3.3V
MUTE
OUT4+
RL+
0V
24
GND
OUT4-
RL-
IC4
POWER
AMPLIFER
CD
25
C257
1u50
+
R257
3.6K
+
1u50
C258
430
750
R261
R260
180K
R262
44
J2
DC-IN
SP-OUT
4
5.0V
+5V
3
5V
0V
2
1
0
5V
0V
5V
0V
67
C41
0.01
5V
0V
R15
56K
R16
100K
23
8765432161
FL-
RL-
FR-
82K
R14
D11
Q11
SERGE
DET.
FL+
FL+
R12
R10
R13
RL+
D10
20K
10K
100K
RL+
FL-
C14
1000P
R11
10K
Q10
BACK
-UP
DET.
RR-
RL-
FR-
RR-
FR+
FR+
+B
RR+
RR+
R20
3.3K
1/2W
R23
39K
12
P.ANT
3
R21
100K
C20 0.1
D20
ACC
DET.
P.CON
R22
1514131211910
ACC
1
100K
Q41
22K
PRE MUTE
22K
+5V
DRIVER
D251
TH1
D252
R258
12
∗
B
J5
R231R223
C223
D253
100
22K
R259
34
45
507
37
2
+B
1
C520
∗
242322
ZER
IER
PB OUT (L)
678
3.8V
0.1
+B
C508
R504
DET (R)
MS GV (S)
DET (L)
C519 0.1
∗
0.01
24K
21
MS 0V (R)
MA OUT
MS1
MS DET
5V
1V
MS OUT
MS GV
DOLBY
9
10
VCC
F/R
MTL
MUTE
D201
32
24
192018
SCL
SDA
MPXAMLEVEL
11
4.0V
0.47
C207
C211
150P
4.7K
R202
+B
+8V
+5V
17
S MUTE
12
4.0V
C209
+5V
5V
0V
QUAL
5V
0V
R203
4.7K
0.1
16
15
MUX OUT R
4.7V
MP IN
13
14
4.0V
C208
+5V
MUX OUT L
MP OUT
0.1
ACC
+5V
59
R186
5.0/0V
C102
22P
IC2 TYPE 1
1
10K
5.0/0V
2.5V
1.7V
5V
0V
XIN
2
0V
5.0/0V
NC
NC
5V
0V
5V
0V
5V
0V
GND
3
R102 100K
60
1K R152 10K
R148
L-DATAL
R147 R151 10K
SUB-
SUB+
L-DATAS
L-CLK
5
4
R108 470
543
1K
L-CE
6
R109 470
6
58
DSI
5V
0V
7
56
0
W506
NC
REMO
5V
0V
5V
0V
5V
0V
R106 2.2K
∗
∗
R188 2.2M
5V
0V
PANEL
8
7
R111 1K
C104 0.01
3.3V
65
66
0-3.5V
67
5.0V
68
+5V
69
69
70
70
71
72
73
5.0V
0V
74
75
+
76
77
78
C110 220u6.3
0V
79
80
22P
C101
64
+5V
4.7K R150 22K
R149
646362616059585756
T-MODE
1V
ACC-DET
S-METER
HOLD
VDD
M-STBY
T-END
NC
NC
VDD
GND
GND
GND
OPEN
OPEN
GND
X OUT
X1
4.5MHz
67
67
0.1
C103
R107
100K
22K
47K
R139
R138
+5V
C111 0.01
66
11
15
55
5V
0V
5554535251
NC
NC
PACK-IN
5V
0V
4.8V
0V
∗
IC1
SYSTEM
u-COM
5V
0V
PLL-DATA
SD
PLL-CLK
9
11
10
R112 4.7K
R113 4.7K
8
9
10
52
R146 1K
FWD/REV
5V
0V
CH-DATA C
CH-DATA H
12
11
12
+B
+8V
+8V
4.7
R501
+
0.01
C501
C502
47u10
∗
20
19
18
17
16
15
14
13
12
11
5V
0V
4.0V
7.9V
0V
0V
∗
C503
C506
0.01
22u6.3
PB OUT
+
C505
0.22u50
+
180K
R502
+B
48
43
5V
0V
49
50
+
+
C504
10u6.3
∗
∗
CN5
1
2
3
C507
R503
0.47u50
1.6K
4.0V
C216 100P
∗
C217 100P
∗
C214 100P
∗
C215 100P
∗
C212 100P
∗
C213 100P
28
IC2
51
C204 1
C205 1
AC OUT L
VREF
1
C203
2.2u50
AC OUT R
CREF
2
4.0V
+
FL
4.0V
262725
OUT LF
L
3
4.0V
RL
FR
4.0V
4.0V
24
OUT LR
OUT RF
CD RRPH-
5
4
4.0V
4.0V
5
L201
4.7uH
RR
4.0V
7.8V
232122
OUT RR
CD GND
678
4.0V
4.0V
6
+B
VDD
CD L
7
C210
C201
47u10
+
C202
0.01
E-VOL. /
MPX
0.033
9
AFC
C206
R201
0V
GND
10
4.0V
0.015
2.7K
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