Kenwood RXD-M31MD Service Manual page 21

Kenwood micro hi-fi component system service manual
Table of Contents

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K
L
CN1401
(D40-1602- 5) MDM-98A
1
2
3
4
5
C1401
0.022
+4.8V
+3.2V
R1400
2.7K
+3.2V
R1401
1.5K
1
2
2
SBCK
0.2V
3
3
LDVAR
4
ADJS
5
R1404
SFSY
1K
0V
6
LOAD IN
7
ERROR
C1407
8
BYTE
0.047
9
CNVSS
10
STID OUT
11
SEACH OUT
R1408
3.2V
12
RESET
3.3K
13
14
VSS
1.6V
15
15
MCCK
3.2V
16
+B
+B
VCC
R1411
17
3.2V
1K
3.1V
18
18
DINT
19
0V
6
19
DSENSE
0V
20
ST-ID
0V
21
21
SERCH
3.1V
22
22
MDRSW
23
FSW
0V
24
VARI-P SW
R1410
3.2V
25
P-DOWN
3.3K
3.2V
26
HDON
0V
27
27
LD+
0V
28
28
LD-
29
R1409
29
CIN
1K
30
INNER
3.2V
17
+3.2V
Q1403
Q1402
Q1400
Q1401
+3.2V
39
M
N
+4.8V
+4.8V
R1612
220K
4.8V
+3.2V
R1701
30K
80
3.2V
XRST
79
DIGCD
78
DIGEX
77
DFS1
76
DFS0
75
DAPON
74
SBSY
73
R1430
A/B
10K
72
3.1V
LDON
71
PCNT1
R1444
70
100
PCNT0
69
68
67
IC1401
L3CLK
67
D1401
66
MD-MECHA
L3MODE
66
u-COM
65
L3DATA
65
64
GND
63
62
VCC
+B
61
R1426 1K
EEPK
61
60
R1427 1K
EEPD
60
R1428 1K
59
EPCS
59
3.2V
58
1.0V
EEPRO
58
57
56
55
54
SYSD0
54
53
SYSD1
53
52
SYSD2
52
51
SYSD3
51
+3.2V
+3.2V
IC1402
2
E PROM
0.4V
5
4
3.2V
DI
SE
61
3
3.2V
CS
59
0.4V
6
DATA
7
2
GND
VCC
+3.2V
+3.2V
0V
8
1
PRTCT
NC
+3.2V
O
P
C1713
R1713
+3.2V
0.01
100K
+
24
24
IC1701
AD/DA
C1705
CONVERTER
0.047
+
C1715
0.01
+
+
C1718
47u4
+
ANALOG
IN
+
+3.2V
+3.2V
L1700
10uH
+3.2V
+3.2V
+4.8V
4.8V
L1301
47uH
+4.8V
+4.8V
+
3.2V
Q1801
+3.2V
+3.2V
IC1601
MOTOR
DRIVER
+3.2V AVR
15
3.2V
Q1804
16
R1806
R1809
R1811
+B
1
1
1
+
3.9V
R1807
17
27K
3.3V
18
IC1801
C1619
4
3
330P
3.4V
4.8V
2
+4.8V
5
1
21
20
19
18
Q
R
R1513
47
R1512
47
ANALOG
OUT
R1536
R1516
2.2K
R1515
2.2K
3.2V
5.0V
5.0V
Q1700
Q1702
R1712
L1503
+3.2V
+5.9V
R1711
12
C1501
4.7uH
+5.9V
12
R1532
1
6
R1708
IC1702
R1519
27K
17
1
3
OUT IN
4.3V
GND
2
L1501
+4.9V
Q1701
C1503
0.33
4.9V
34
4.8V
Q1805
35
R1517
+
R1801
36
R1518
Q1800
270
21
4.0V
R1520
Q1803
Q1806
37
5
C1509
Q1802
0.047
12
Q1500
1
R1535
+3.2V
47
+4.8V
R1522
220
R1523
0
15
14
14
16
13
13
17
12
12
18
11
11
19
10
10
9
9
20
8
21
+4.8V
30
29
22
7
23
6
25
24
5
24
25
4
26
3
23
27
2
22
28
1
27
RXD-M31MD
Y39-3212-70
S
T
CN1501
28
R OUT
27
AA.GND
26
L OUT
25
AD.GND
0
24
R IN
23
AA.GND
22
L IN
+5.9V
21
AVCC
20
LOAD SW
1K
19 PSWCK
120
18
DVDD
MD CONT.
17
DVDD
1uH
CN502
16
D. GND
15
D. GND
3/5
14
D. GND
13
D. GND
A
R1531
220
12
DSTB
R1530
11
MODATA
220
10K
R1529
10
KDATA
8.2K
10K
R1528
9
SERCH
8.2K
10K
R1527
8
DSCK
8.2K
R1526
7
MD-ST
1K
R1525
6
RESET
3.3K
R1514
5
PDOWN
1K
+B
4
BUCKUP
3
DIGIN
R1539
2
GND
0
1
DIGOUT
+
RXD-M31MD (1/5)

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