2
U
W
Y
AA
AC
V
X
Z
AB
AD
1
3
5
7
4
6
23
24
RXD-M47WM/LS-M47WM
DISPLY
∗
U101
LCD101
U102
DISPLAY
TOP KEY
HM-437WM(3/3)
U103
CN103
D103
Q101
CN105
CN102
CN101
D102
CN104
D104
D105
LED181
Q180
∗
LED180
Q182
Q181
∗
LED182
SW107
SW108
POWER
TIMER
ON/OFF
SET
TIME
SW109
PLAY/
PAUSE
SW110
SW111
SKIP+/
SW112
SW113
VOL+
STOP
SW101
/BAND
TUNER
CD
SW100
SW102
SEARCH-
RDS/
REC
DISPLAY
SW103
SW104
SKIP-/
SW105
VOL-
SW106
TAPE
SW116
PROG.
SW117
DOWN
PRESET
SW118
SW115
REPEAT
SW114
BASS
EQ/
UP
PRESET
2/3
CN260
MAIN-
2/3
MAIN-
CN804
2/3
MAIN-
CN701
1/3
CN606
CD-
U101
:
U102
: RPM7138-V4
Q101,180,181
: 9014
Q182
: 8550D
D102-106 : 1N4148
B LINE
GND LINE
CN106
CD-
CN603
1/3
D106
CN107
CN108
CN109
M24C16
U103
:
2/3
CN402
MAIN-
to
CD DOOR SW
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
COM1
COM2
COM3
1
2
3
4
5
6
PDA
PCLK
PERI
ST
RDA
RCLK
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
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG1
1
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
SEG34
SEG35
SEG36
SEG37
SEG38
SEG39
VDD2
VSS2
BOOT
VAREF
AD K1
AD K2
L.V. DET
PWR DETECT
STAREO
RDS DATA
OVERLOAD
CLT(SLEND)
SLT
MOTOR OP
MOTOR CL
BUS3
BUS2
BUS1
BUCO
BUCK
CCE
VSS1
XOUT
XIN
RESET
XT
OUT
XTIN
TEST
BIAS CONTROL
REMOTE
MUTE
MP3 SCLK
MP3 SDA
T
A
MP3 REQ
BACKLIGHT
PROTECT
PLA
Y/REC
RECSW R/W
A
IT
RECSW F
SOLENOID
MODE SW
VOL
STB
POWER
HALF SW
I2C DA
T
A
I2C CLK
RDS CLK
T
.MOT
OR
T
APE PHOT
O
CD R
W
CDRES
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
COM3
COM2
COM1
COM0
VLC
PLL DATA
PLL CLK
PLL PER100
VDD1
COM0
COM1
COM2
COM3
0.1
C1
19
33
32
31
39
36
35
34
42
43
R139 10K
R140 22
R136 1K
R145 1K
R144 1K
R143 1K
470u6.3
C101
+
C102 0.1
43
42
26
kHz
32.768
X102
C108 20P
C107 20P
X101
7.2MHz
2.2K
R104
24P
C106
24P
C105
47K
R101
10u16
+
C103
3.3K
R102
10K
0.1
C104
R103
29
30
20
19
18
27
28
8
16
21
22
25
24
10
DRST
RST
CCE
BUCK
BUS0
BUS1
BUS2
BUS3
SRMSTB
GND
9
8
7
6
5
4
3
2
1
VOL
DA
T
VOL
CLK
1
3
2
1
MUTE
7
PSW
GND
BIAS CONT
8
9
PLA
Y/REC
5.6V
L.V
. DET
4
6
5
3
5V
2
16
45
22
8
R138 2.2K
47uH
L101
R109 1K
24
R1
10 1K
25
6
HALF SW
MODE SW
REC SW
3
1
2
SOLENOID
4
5
T
APE PHOT
O
T
. MOT
OR
54
26
OUT
GND
IN
47u10
C180
+
100
R180
3.3K
R183
10K
R181
∗
R184
100K
R186
10K
R182
1K
R188
∗
R185
C1
18 0.01
C1
17 0.01
R134 10K
0.01
C116
R133 10K
R132 10K
R131 10K
R130 10K
R129 10K
R128 10K
29
30
31
32
33
34
35
36
39
+B
0.01
C172
220u16
C109
+
COM0
R174 2.2K
13
12
11
R106 10K
40
R141 10K
DREQ
SDA
3
2
SCL
1
11
12
13
C183
0.022
1
2
2
1
470
R161
680
R162
1K
R163
1.2K
R164
1K
R165
1.5K
R166
1.8K
R167
2.2K
R168
2.7K
R169
2.2K
R156
1.8K
R155
1.5K
R154
1K
R153
1.2K
R157
1K
R152
680
R151
470
R150
R142 10K
R171
1K
R100
R1
13 10K
R1
12 10K
R1
1
1
10K
R170 1K
DGND
GND
10
10
R1
17 1K
R146 4.7K
R1
18
100P
C150
10
R158
23
+5V
11
1 2
CL
T
40
GND
L170 1K
75
R160
75
R173
47
46
46
47
R137 39K
14
9
9
14
0.01
C115
L171 1K
L172 1K
L173 1K
L179 1K
L175 1K
L176 1K
L177 1K
L178 1K
L180 1K
10K
R135
4
2
3
1
5
8
6
7
R107
220
0.022
C120
47u10
C121
+
4.7K
R1
14
0.01
C114
54
21
4.7K
R1
16
28
20
23
27
19
18
R149
10K
45
S25
S2
S1
S13
S5
S4
S3
S7
S6
S10
S9
S8
S12
S1
1
S16
S15
S14
S18
S17
S22
S21
S20
S24
S23
S19
S27
S26
S30
S29
S28
S33
S32
S31
S35
S34
S0
S24
S1
COM0
COM1
COM2
COM3
S0
S12
S4
S2
S3
S5
S6
S8
S7
S9
S10
S1
1
S13
S14
S16
S15
S17
S21
S18
S20
S22
S23
S25
S26
S28
S27
S29
S32
S30
S31
S33
S34
S19
S35
100
100
150
E
EUROPE
HM-437WN-S
EUROPE
AUSTRALIA
HM-437WN-H
HM-437WN-H
E
X
COUNTRY
DESTINATION
MODEL
NAME
ABB.
185
R184,
ORG
BLUE
BLUE
182
LED180,
100K
0
C151
1K
10K
R159
1K
R1
19
4.7K
R108
R147 1K
R124 1K
J146 1K
R148 1K
J130 1K
R123 1K
+5.6V
+B
+B
+B
+5.6V
+5V
+5V
+5.6V
+5V
+5.6V
+5V
+5.6V
+5V
+5V
+5.6V
+5V
+5.6V
1
COM0
2
COM1
3
COM2
4
COM3
5
1F
1H
1G
1E
6
1A
1I
1N
1M
7
1B
1J
1K
1L
9
2F
2H
2G
2E
10
2A
2I
2N
2M
13
3F
3H
3G
3E
14
3A
3I
3N
3M
15
3B
3J
3K
3L
17
4F
4H
4G
4E
18
4A
4I
4N
4M
19
4B
4J
4K
4L
11
2B
2J
2K
2L
8
1C
1D
12
2C
2D
16
3C
3D
20
4C
4D
COM/PIN #
COM-0
COM-1
COM-2
COM-3
29
24
COL
5C
5D
30
7F
7H
7G
7E
31
7A
7I
7N
7M
32
7B
7J
7K
7L
21
5F
5H
5G
5E
22
5A
5I
5N
5M
23
5B
5J
5K
5L
25
6F
6H
6G
6E
26
6A
6I
6N
6M
27
6B
6J
6K
6L
34
8F
8H
8G
8E
35
8A
8I
8N
8M
36
8B
8J
8K
8L
28
6C
6D
33
7C
7D
37
38
39
8C
8D
40
P( )
1
8
A
F H
I
J
B
E N M L C
G
D
K
COL
P
TMP87EP26-437W
CAUTION:
For continued safety, replace safety critical com-
ponents 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 cus-
tomer.
The DC voltage is an actual reading measured with a high
impedance type voltmeter with no signal input. The mea-
surement value may vary depending on the measuring
instruments used or on the product.
R-4
H-6
R-5
R-6
R-7
H-3
