Kenwood LS-M505-B, Service Manual

Page: 13 / 26

13
RXD-M505USB/LS-M505
O N M L K
1
2
3
4
5
6
7
CD (3/3)
CN13
CN2
CN6
D3
Q4
CN106
2/4
MAIN-
CN302
2/4
MAIN-
B LINE
SIGNAL LINE
GND LINE
U1 : AZ1117H-3.3
U2 : AZ1117H-ADJ
U3 : SPHE8104AW
U7 : K4S641632KUC60
U9 : AM5954
U11 : S29AL008D70-5
Q3 : 2SB1132R
Q4 : BT3904
Q5,6 : 3CA8550
Q7-9 : 2SC8050
D1,4,5 : 1N4001
D2,3,508,509
: RLS4148
D508
D509
USB
TYPE1
CN502
162
161
160
159
158
157
156
155
154
153
152
151
150
149
148
147
146
145
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
12
A7
A6
A5
A4
A3
A2
A1
A0
D0
D1
D2
K5
D3
D4
D5
D6
D7
E B
K4
IO
IO
10
A11
A9
A8
04
13
14
17
B
A3
A2
A1
K4
A0
10
IO
IO
IO
A4
K3
A5
A6
A7
A8
A9
IO
K3
KO
03
IO
D8
D9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
A15
A14
A13
A12
A11
A10
A9
A8
NC
NC
WE
RST
NC
NC
RY/BY
A18
A17
A7
A6
A5
A4
A3
A2
A1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
A16
BYTE
GND
DQ15/A 1
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ4
VCC
DQ11
DQ3
DQ10
DQ2
DQ9
DQ1
DQ8
DQ0
OE
GND
CE
A0
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
VDD
D0
VDDQ
D1
D2
VSSQ
D3
D4
VDDQ
D5
D6
VSSQ
D7
VDD
LDQM
WE
CAS
RAS
CS
BA0
BA1
A10/AP
A0
A1
A2
A3
VDD
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
VSS
D15
VSSQ
D14
D13
VDDQ
D12
D11
VSSQ
D10
D9
VDDQ
D8
VSS
NC/RFU
UDQM
CLK
CKE
NC
A11
A9
A8
A7
A6
A5
A4
VSS
1
2
3
R
GND
L
1
2
3
4
NC
TX
RX
GND
M36
M37
M12
M34
M35
M33
M32
M09
M11
M10
M08
M31
M00
M01
M02
M04
M03
M05
M06
M07
M28
M29
M21
M26
M27
M25
M24
M30
M20
M19
M18
M16
M17
M15
M14
M13
M22
R51
33
RA19
RA28
RA24
RA04
RA21
RA20
RA22
RA23
RA00
RA25
RA06
RA05
RA07
RA02
RA03
RA26
RA27
RA18
RA08
RA16
RA14
RA15
RA13
RA12
RA11
RA10
RA09
RA17
RA01
L6
10u6.3
EC23
EC25
10u6.3
12K
R93
12K
R80
R82
R95
C65
680P
C63
680P
RA00
RA02
RA01
RA06
RA03
RA05
RA04
RA07
RA08
RA11
RA10
RA09
RA12
RA13
RA14
RA15
RA18
RA17
RA16
RA21
RA20
RA19
RA22
RA23
RA25
RA24
M33
M24
M22
M19
M20
M21
M26
M25
M28
M27
M29
M30
M31
M32
M35
M34
M36
M37
185
181
182
470
R77
470
R76
L5
0
R44
BC35
0.1
BC32
0.1
76
RST
69
1
3
2
4
22
R11
22
R10
15K R13
R12
15K
F1
82
81
RST
100
R43
10K R41
10K R46
C40
0.1
100u6.3
EC6
10u6.3
EC18
1.5K
1.5K
165
166
+B
U+5V
U+5V
+1.8V
+1.8V
+1.8V
F+3.3V
F+3.3V
F+3.3V
S+3V
S+3V
S+3V
S+3V
S+3V
S+3V
S+3V
S+3V
S+3V
S+3V
S+3V
S+3V
+3V
+3V
+3V
+3V
+3V
+3V
4
2
3
1
USB+5V
USB DM
USB DP
GND
1
2
3
4
0.1
C530
0.1
C532
5
VCC
D-
D+
GND
C41 10P
+
+
+
+
U11
U7
M-505USB (1/4)
USB
CAUTION: For continued safety, replace
s a fe t y c r i t i c a l c o m p o n e n t s o n l y w i t h
manufacturer’s recommended parts (refer
to par ts list). indicates safety critical
components. For continued protection
against risk of fi re, 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 customer.
T h e D C vo l t a g e i s a n a c t u a l r e a d i n g
measured with a high impedance type
v o l t m e t e r w i t h n o s i g n a l i n p u t . T h e
measurement value may vary depending on
the measuring instruments used or on the
product.
P-4
P-4