
K
M
O
Q
S
L
N
P
R
T
Y39-3490-51
RD-M52MD/M72MD
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
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
CE
MODE2
FWE
EXTAL
VSS
XTAL
VCC
STBY
NMI
RESET
MODE1
MODE0
AVCC
VREF
SCL
SDA
VCC
VSS
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
CTXD
CRXD
DQSY
SQSY
XLA
T
SWDT
SRDT
SCLK
HMUTE
SENS
MNT3
MNT2
MNT0
MNT1
XINT
TX
RECP
XRST
LDON
RMS
IDSW
HEADPOS
BITRA
TE
DISCINSW
SL
TSW
AV
S
S
LOADM-
LOADM+
EMPHA
ADDARST
MUTE
POWER
FRDT
FWDT
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 H+5V
HGND
+3.3V(OUTPUT)
BACKUPV
CTXD
CRXD
BACKON
CE
MECHARST
AOUTR(DATA)
DGND
AOUTL(BCK)
-5V
DGND
GND
AINR(LRCK)
A+5V
AINL(MCK)
D+5V
DIN2
M+5V
DIN1
M+5V
MGND
DOUT
MGND
1
2
3
4
5
6
7
0.01
C153
23
21
L4 100uH
C161
10u10
92
91
93
94
L3 100uH
10u10
C160
C156 0.1
10uH
L1
86
85
88
89
27
25
6
8
C197 0.1
C152 0.1
C151 100u6.3
+
12
11
10
9
8
7
6
5
4
3
2
1
SDTI
SCLK
LRCK
DIF1
DIF0
AGND
VA
AINL-
AINL+
NR-
NR+
REPH
13
14
15
16
17
18
19
20
21
22
23
24
SDT
O
SMUTE
DEM0
DEM1
NCKI
VD
DGND
PD
CMODE
AOUTL
AOUTR
VCOM
C37 0.1
C39 4.7u25
+
C35 2200P
R3 470
C36 0.1
C38 4.7u25
+
C34 2200P
X2
10MHz
3.3K
R176
87
88
89
90
91
92
84
R182 47K
R183 47K
R172 47K
R181 47K
0.1
C166
10
9
8
7
6
NC
VS
OT1
VRF
IN1
1
2
4
5
3
IN2
VCC
OT2
NC
GND
4.7K
R40
1
2
3
100u6.3
C190
+
100u6.3
C187
+
10u10
C186
+
470u6.3
C1
+
32
31
8
3
6
7
8
5
2
1
4
3
39
38
10K
R170
10K
R171
0.1
C171
R52 10
R53 10
R4 470
+5V
10u10
+
0.1
0.1
10u10
C41
+
+
10u10
16
15
14
13
12
11
10
9
8
17
19
18
21
20
22
25
24
23
FACE
INTER-
PRE DRIVE
PRE DRIVE
INTER-
FACE
7
6
5
4
3
2
30
26
28
27
29
32
31
VDD
PRE DRIVE
PRE DRIVE
INTER-
FACE
INTER-
FACE
6 OSC
PUMG
CHARGE
1
PSB
R10 100
R11 100
1K
R178
15K
R126
6.8K
R120
R1
19 8.2K
R122
6.8K
R129
10K
220P
C1
14
330P
C125
C159
0.1
R130 10K
C127 470P
C157
C126 470P
R128 10K
R138
0.1
10
R124 15K
C120 330P
W8
10uH
L2
W9
37
41
40
47
44
43
48
R16 470K
R15 470K
66
67
C170 0.1
R168 4.7K
+5V
+5V
76
77
R17
39
37
38
66
67
31
32
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
R186 470K
R187 470K
1
10K
R1
16
10K
R1
1
1
R1
14
10K
R173
R174
78
81
82
85
83
77
76
98
96
2.2
R2
R149 100
+5V
47K
100
99
10
12
10
12
R1
18 8.2K
27
28
97
47K
75
59
75
C33
C40
C32
C31
+5V
0.1
C44
1
+5V
+3.3V
+5V
+5V
+5V
+5V
+3.3V
+3.3V
OUT
GND
IN
+5V
+5V
+5V
+5V
+3.3V
4.7
R160
100u6.3
C198
+
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
R13 100
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+B
+B
+3.3V
+3.3V
+5V
+5V
+5V
+5V
+5V
+5V
+B
+B
40
41
3.3K
R41
59
+5V
+5V
+5V
+5V
+5V
+B
+5V
+5V
+5V
+3.3
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
5V
59
59
29
97
9
8
10
12
16
3
14
13
1
+5V
+5V
+5V
+5V
+B
+5V
+5V
+5V
+5V
+B
+5V
+5V
+5V
+B
+5V
IC24
IC8
IC12
IC30
IC10
IC6
(X33-1190-XX)
A
CN1
CN5
Q10
Q8
Q11
MD MECHA
u-COM
3.15V AVR
LOADING
MOTOR
SL/SP MOTOR DRIVE
FOC./TRA.DRIVE
3.3V AVR
DA/AD
CONVERTER
DIGITAL
REC
DIGITAL
IN2
VG
DRIVE
Q12
Q13
IN1
DIGITAL
PLAY
-M
ON
LOAD
LOAD
+M
ON
Q9
IC4
E2PROM
X29-
2/3
CN7
(1/2)
(2/2)
IC4
A
0V
3.2V
0.3V
0.3V
0.3V
0.3V
5.1V
0V
-5.4V
0V
0.6V
5.1V
5.0V
5.1V
0.6V
3.0V
5.0V
5.0V
0V
5.0V
0V
2.5V
7.2V
0V
0.3V
5.1V
0
0V
5.1V
0V
0V
5.1V
0V
0V
3.2V
0V
9.3V
0.6V
3.2V
5.1V
0.9V
0V
5.1V
0V
0.3V
5.1V
0V
0V
3.2V
3.2V
3.3V
3.3V
3.3V
3.2V
0V
0V
0V
0V
0V
0V
2.0V
3.2V
0V
3.2V
3.2V
1.3V
1.5V
3.2V
3.2V
3.3V
1.8V
0.9V
3.2V
3.1V
3.1V
3.1V
1.2V
3.0V
3.2V
3.1V
3.2V
3.2V
3.2V
0V
0V
0V
3.2V
3.1V
3.1V
3.1V
REC: 0.4V
REC: 3.2V
3.2V
0V
0V
3.3V
3.3V
2.6V
0V
5.0V
1.6V
1.0V
1.6V
3.3V
3.3V
2.5V
2.5V
2.5V
2.5V
4.9V
3.2V
3.3V
1.6V
0V
1.1V
3.2V
2.5V
0V
2.5V
3.3V
5.1V
W10
)
(
)
(
RD-M52MD-L (1/3)
CAUTION:
For continued safety, replace safety critical components 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 car-
ried out (exposed parts are acceptably insulated from the supply circuit)
before the appliance is returned to the customer.
The DC voltage is an actual reading measured with a high
impedance type voltmeter. The measurement value may vary
depending on the measuring instruments used or on the prod-
uct. Refer to the voltage during RECORDABLE MD PLAY
unless otherwise specified; The value shown in ( ) is the volt-
age measured at the moment of STOP. The voltage followed by
(REC) refers to the value during MD RECORDING.