O
N
M
L
K
1
2
3
4
5
6
7
4.7K
4.7K
47K
10K
22K
22K
22K
22K
0V
5V
0V
0V
5V
5.0V
0V
5V
2.3V
2.3V
0V
5.0V
0V
0V
5.0V
0V
5.0V
0V
0V
5V
V
V
0V
5V
5V
0V
0V
5V
5V
0V
5V
0V
0V
0V
5V
0V
5V
5V
0V
0V
5V
5V
0V
5V
0V
5V
0V
5V
0V
5V
0V
0V
5V
5V
0V
0V
5V
5V
0V
REV : 0V
FWD : 5.0V
0V
5V
0V
5V
5V
0V
5V
0V
0V
5.0V
0V
5V
0V
5.0V
5.1V
14.1V
10.4V
5V
0V
0V
8.0V
8.3V
0V
13.8V
14.4V
8.3V
5V
2.5V
∗
A1
∗
IC1
IC6
IC12
IC11
A
IC7
D252
D253
Q224
Q223
PRE OUT
J5
J3
Q151
SYSTEM
u-COM
5V SW
D157
D161
D153
D159
PANEL
5V SW
MUTE
PREOUT
D160
∗
Q301
EEPRON
Q50
∗
C
RESET
D101
Q1
P.CON.
DETECTION
RDS DECODER
LOCAL
SEEK SW
2/2
X16-
J1
(E30-4933-05)
ANT
WH1
D154
POWER
SUPPLY
L
R
R258
100
R259 22K
270
R224
R232
100
100
R231
R223
270
10u16
C223
R227
30K
R228
30K
10u16
C224
+
C225
RR
RL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
RF GND
FM ANT
AM ANT
FM+B
AM+B
FM LO/DX
K2I-VTH
VCO-GND
FM SD OUT
FSD OUT
FM DET OUT
AM DET OUT
B
IF GND
HI UP ADJ
PLL CE
PLL DATA
PLL CLK
P-ON 5V
DIG GND
IF SELECT
REQUEST
RDS OUT
52mH
L301
10
11
8
+
100u10
C304
0.01
C305
13
30
R305
3.3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
ILL GND
D GND
L RST
SW5V
LAMP +B
LED +B
L DATA S
L CLK
L CE
L DATA L
VDD
RST
REMO
PANEL SW
ESD GND
R153 1K
R161 1K
R154 1K
R158 470
R156 1K
R157 1K
R159 1K
R162 47
12
2
61
6
11
13
34
+
R160 100
5
P1
R155 10
0.01
C303
0.01
C302
100u10
C301
+
4.7uH
L303
L304 4.7uH
12
R303
R304 4.7
∗
C308 0.01
10
4.7uH
L305
29
L306
4.7uH
C306
10u16
0.01
+
C307
AM LO/DX
CP101 1K
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
30
31
32
33
34
35
36
37
38
39
40
XT1
XT2
IC
X1
X2
VDD 1
VSS 0
KEY
-REQ
P
A
CK-IN
CH-REQ C
R-CLK
REMO
RESET
SUB-
SUB+
FWD/REV
EQ-MUTE
MS-CONT
MUSIC
SW5V
EN1
EN3
BEEP
EN2-0
EN2-1
CH-REQ H
CH-CONT
P.CON-DET
SD
AFS
LO/DX
VSS 1
P-MUTE
SVR
GND
IC2-SCL
IC2-SD
A
MUTE
P-STBY
1
2
3
4
5
6
7
8
QUAL
RDDA
VREF
MPX
OSEL
GND
ARI
FIL OUT
16
15
14
13
12
11
10
9
RDCK
T57
OSCO
OSCI
VCC
EXTRES
TM
TSEL
10P
C356
10P
C355
9
32
C354 0.01
C353 10u6.3
+
R354
330P
C352
10u6.3
+
C351
CP315
2.2K
10
CP104
1K
R132 1K
58
59
57
56
55
54
53
52
51
48
50
R145
10K
44
42
R144
4.7K
CP102 1K
CP103 10K
22K
R123
1
2
3
4
VSS
8
7
6
5
VCC
WP
SCL
SDA
4.7uH
L101
R122 10K
R120 10K
37
38
X1
6.8K
R138
C105
15P
C104 15P
4.19MHz
R135
2.2K
R136
2.2M
61
62
R137 4.7K
40
39
35
34
47K
R51
2.2K
R50
53
14
15
62
2.2K
R353
X2
30
32
R116
4
.7K
R117 4.7K
∗
R118 2.2K
2
1
3
4
100K
0.1
C101 100u6.3
+
C102 0.01
63
C103
R101
C2
120K
R3
100K
R4
4.7K
R129
4.332
MHz
0.01
+5V
+B
+B
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+B
+5V
+5V
+5V
+5V
+5V
+5V
+5V
MT
MUT
RST
0.01
64
RST
RST
VCC
52
C52
10u16
C51
10u16
+
10u16
VP1
+
+5V
+
B
U
.5V
13
C55
+
C56
100u16
11
ILLUM
12
EN1
10
+
A
UDIO
GND
8
9
AM+B
7
10u35
+
C50
1
51
48
P
.ANT
FM+B
EN3
4
5
6
P
.CON
EN2
2
3
10u50
C54
10u16
+
C53
+10.4V
+10.4V
+10.4V
+10.4V
+8V
+8V
+8V
+8V
+8V
+8V
+8V
+8V
+8V
+8V
+8V
+8V
+5V
+B
+B
+5V
+B
KRC-31Y/36/366L/37/Y/391/394/Y/466R/4904Y (1/2)