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A
B
IC1
IC2
IC4
IC6
IC7
(X25-8712-XX)
IC8
UNIT
IC11
MODEL NAME
D
R135
R136
R137
R138
No.
IC12
KDC-4590R
2-70
YES
YES
NO
NO
YES
KDC-4590RV
2-74
YES
YES
NO
YES
NO
KDC-4090R
2-71
NO
NO
YES
NO
YES
J4
1
REQ H
7
RST
13
11
12
8
4
3
2
1
5
2
GND
8
Rch
3
B.U
9
REQ C
9
10
6
7
5
1
4
CHCON
10
DATA C
2
6
5
MUTE
11
DATA H
6
A GND
12
Lch
3
7
13
CLK
4
8
∗
REAR
FRONT
D
J5
CN2
1
2
3
R227
R228
R225
R226
30K
30K
30K
30K
Q223
Q224
Q221
Q222
MUTE
REAR
FRONT
Q40
5.0V
IC8
60
IC11
RESET
MUTE DRIVE
18
R127
61
2.2K
R204
Q201
17
1K
63
R129
64
2.2K
KEY
R130
66
2.2K
RDS
IC6
5.0V
R351
R353
C104
2.2K
1
5V
16
2.2K
15
QUAL
RDCL
0V
15P
R352
X1
2.2K
5V
2
15
14
RDDA
T57
C105
4.19MHz
0V
C351
C356
15P
R120
14
10u6.3
3
OSCO
2.4V
VREF
+
10P
C352
330P
C355
4
13
MPX
OSCI
5
12
10P
OSEL
5.0V
VCC
6
11
GND
0V
EXTRES
7
10
ARI
TM
8
9
FI 1 OUT
F SEL
R134
2.2K
Q102
47K
10K
ILL+B
15
13
11
9
7
5
3
1
14
12
10
8
6
4
2
J3
C
D
:
UPD780058GC251
D1
:
S2V20 A
D30
: MA4047-M or
:
TDA7407D
D2,40,50,101,103,104,251-253
HZS5B1
:
TDA7386
:
1SS133
D51
: MA4082(N)-L or
:
TDA7479D
D4
:
SA-C2012-101TB or
HZS9A1L
:
BA4911-V4
IMSA-6801
D102
:
B30-1567-05
:
HD74HC27FP
D10,20,70,201,202,401,402
D106,107,403,404,409-411
:
S-80830ANNP
:
MA4068(N)-M
:
MA4062-L or
:
BR24CO1AF
D13,14,261-263,265,266
HZS6C1
: AM01Z or
D264,267,268
: D1F60
DSM1SD2 or
ERA15-02
9
10
13
11
D268
12
D264
D266
D262
41
R256
1K
Q251
10K
40
47K
38
BU5V
SW5V
77
43
+5V
5.0V
0V
CP1
10K
CP3
CP2
1K
2.2K
R264
47K
0V
5V
0V
61
REMO
5V
0V
5.0V
5V
40
0V
0V
5V
SVR
62
0V or 5.0V
R-CLK
0V
5V
0V
5V
5V
or 0V
39
63
0V
0V
CH-REQC
P-MUTE
38
5V
MUTE
5V
0V
0V
37
5V
CLK
64
0V
5V
CD-SW1
36
5V
0V
DATA
65
KEY-REQ
0V
66
CD-SW2
67
0V
VSS 0
5V
68
0V
VDD 1
35
IC2 TYPE0
R131
69
34
X2
IC2 TYPE1
6.8K
33
0V
VSS 1
70
IC1
32
X1
0V or 5.0V
TYPE0
71
u-COM
IC
0V
10K
72
XT2
73
31
5.0V
0V or 5.0V
XT1
TYPE1
74
VDD 0
5V
75
30
AVREF0
0V
0V or 5.0V
TYPE2
29
76
5.0V
TYPE REF
S-METER
0-4.0V
28
CH-CON
5V
27
0V
SD
26
77
N.C
PHONE
0.6-4.1V
25
78
5V
5V
N.C
NOISE
2.2-4.5V
0V
5V
0V
24
79
N.C
5V
0V
N.C
5V
23
80
0V
N.C
AV CONT
0V
5.0V
22
5V
0V
5V
5V
LO/DX
5V
0V
0V
0V
0V
21
AFS
28
ILL+B
E
F
Q10,20,70,101,201
Q102
: DTA114YUA or
: 2SC4081 or
UN5114
2SD1819A
Q221-224
:
DTC143TUA or
Q40
: DTA124EUA or
UN5216
UN5112
Q251
:
DTC114YUA or
Q50
:
2SA1036K
UN5214
Q51,53
:
UMC2N
Q301
:
DTC124EUA or
Q55
: 2SD2375 or
UN5212
2SD2396
J2
16
15
14
13
12
11
10
9
POWER
IC4
1
2
3
4
5
6
7
8
AMP
3.4V
D267
D261
D263
D265
TEL
ACC DET
MUTE
Q20
R21
D20
33K
Q10
43
R261
R260
C258
430
750
1u50
+
D251
TH1
5.0V
IC12
1
8
Q101
VCC
2
7
WP
3
0V
6
4
SCL
VSS
5
SDA
L201
4.7uH
5.0V
0V
E.VOL
IC2
28
1
C203
AC OUT L
VREF
2.2u50
27
2
AC OUT R
4.1V
CREF
+
C205
3
2.2u50
26
4.0V
FL
OUT FL
L
3
4.1V
+
25
FR
OUT FR
R119 47K
24
C204
RL
OUT RL
2.2u50
R117 1K
R118 10K
23
4
R
4
RR
OUT RR
+
R115 1K
R116 10K
5
22
VDD
CDR
5
8.2V
6
21
CD GND
6
GND
0V
7
R114 47K
CDL
7
8
PH-
R113 47K
9
W21
AFS
C206
R201
10
0.015
2.7K
20
AM
AM
SDA
SDA
5.0V
19
SCL
SCL
0V
11
C207
R202
18
∗
∗
18
S MUTE
3.5V
MPX
FM
R137
R138
0.47
4.7K
47K
47K
∗
∗
12
LEVEL
R135
R136
17
17
QUAL
0V
47K
47K
16
13
4.7V
OUT R
MP IN
R110
15
14
1.0V
27
OUT L
MP OUT
4.7K
R109
2.2K
22
R58
21
4.7K
R141
R144
100K
100K
R143
2.2K
1
3
5
7
2
4
6
8
P1
CN1
to CD MECHANISM
G
H
SIGNAL LINE
B LINE
FUSE
AM+B
SURGE
FM+B
DET
POWER
SUPPLY
Q70
R71
D70
82K
IC7
0V
1
GND
D13
14.0V
2
P-CON
R10
D10
30K
3
P-ANT
8.1V
4
FM +B
BU DET
7.9V
5
AM +B
AUDIO+B
8.1V
6
AUDIO +B
SW5
14.3V
49
7
VCC
Q50
5.0V
8
Q53
BU 5V
5.0V
9
V BU
7
5
3
VDD
1
D50
10
47
SW 1
4
42
3
VDD
1
11
52
SW 2
10.3V
12
ILLUM
Q51
SW14V
J1
L4
52mH
Q55
D4
TUNER
A1
SERVO
(X86-3302-71)
C302
0.01
1
C301
RF GND
100u10
2
+
FM ANT
3
AM ANT
L303 4.7uH
4
FM +B
L304 4.7uH
5
AM +B
R302
6
AM LO/DX
4.7
7
FM LO/DX
8
IF SELECT
22K
22
Q301
22K
9
4
RDS OUT
10
REQUEST
11
K2I-VTH
12
VCO GND
13
27
FM SD OUT
14
76
FSD OUT
15
FM
FM DET OUT
16
AM
AM DET OUT
R301
L305
17
COMMON +B
2.2
4.7uH
18
IF GND
19
HI UP ADJ
20
20
PLL CE
21
9
PLL DATA
22
10
PLL CLK
L306
23
P-ON 5V
4.7uH
24
DIG GND
R145
2.2K
9
11
13
15
17
19
21
10
12
14
16
18
20
22
1/2
KDC-4090R/Y
I
1
WHT
GRN
FL+
8
9
RL+
WHT/BLK
GRN/BLK
FL-
7
10
RL-
GRY/BLK
VIOL/BLK
FR-
6
11
RR-
GRY
VIOL
FR+
5
12
RR+
ANT CONT/
BLU/WHT
4
13
P. CONT
BLU/WHT
BRN
TEL MUTE
3
14
RED
2
15
BLK
YEL
1
16
2
MOLEX
CONNECTOR
7
5
3
1
B
8
6
4
2
ISO CONNECTOR
7
5
3
1
A
8
6
4
2
BUP
3
DC CORD
(E30-4790)
KDC-4090R/4590R
WHT
GRN
FL+
8
9
RL+
WHT/BLK
GRN/BLK
FL-
7
10
RL-
GRY/BLK
VIOL/BLK
FR-
6
11
RR-
GRY
VIOL
FR+
5
12
RR+
ANT CONT/
BLU/WHT
4
13
P. CONT
BLU/WHT
BRN
TEL MUTE
3
14
RED
2
15
BLK
YEL
4
1
16
MOLEX
CONNECTOR
7
5
3
1
B
8
6
4
2
ISO CONNECTOR
7
5
3
1
5
A
8
6
4
2
BUP
DC CORD
(E30-4791)
KDC-4590RV
6
X13-
J1
2/2
A
7
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