DSR-20MD/20MDP
4-103
4-104
SERVO, SYSTEM CONTROL
CM-56 (2/2)
CM-56 (SERVO, SYSTEM CONTROL) SCHEMATIC DIAGRAM
• See page 4-97 for CM-56 printed wiring board.
• See page 4-123, 124 for waveforms.
NO MARK:REC/PB MODE
R:REC MODE
P:PB MODE
*
:IMPOSSIBLE TO MEASURE THE
VOLTAGE AT THE MARKED POINTS.
4.9
3.1
0.1
*
*
*
0.1
0
3
2.5
3
4.2
2.5
2.5
2.5
2.5
2.5
2.5
5
1.2
0.7
5
0
0
0
1.5
1.5
1.8
6
4.4
1.2
1.2
1.2
4.4
6
4.4
0.7
1.2
1.5
1.5
1.5
0.7
0.7
3.1
3
3.2
0
1.1
0.6
0.6
0.6
0.7
1.2
1.2
1.2
2.4
1.2
4.9
3.1
0.1
*
*
*
0.1
0
3
5
2.5
2.5
2.5
2.5
2.5
2.5
4.2
3
2.5
4.9
13.3
13.1
13.5
13.3
3.2
13.3
13.1
13.5
13.3
3.2
12
13
0
0.3
0.3
1.6
10.5
1.5
1.2
0.3
0.3
1.6
10.5
2.4
1.5
2.5
1.5
3.1
0.4
0.2
-0.1
-0.1
0
*
3
5
*
3
1.5
1.5
2.6
2.4
5
0.8
0.8
0.7
0.7
0.7
3.1
3
3
*
*
*
5
5
5
0
4.9
15
16
17
19
18
20
22
21
R563 1k
R153
0
R564 1k
R121 1.5
1/8W
R274
10k
R525
100
R501 XX
R528
0
R503 XX
R522 XX
R523 XX
R524
47k
R502
XX
R193
18k
R230
8200
R208
680
R526
100
R229
910
R155
0
R285
100
R169
1800
R171
2700
R284
100
R196
2200
R154
0
R176
220
R195
18k
R146
0
R209
680
R122 1.5
1/8W
R568
47
R549
4700
R516
0
R232
8200
R569
47
R550
10k
R231
910
R201 10k
R567
47
R548
XX
R164
7500
R206 10k
R570
47
R547
100
R207 10k
R571
XX
R529 1.5
1/8W
R233
47k
R161
0
R519
47k
R520
47k
R527
XX
R241 10k
R168
1800
R521
47k
R151
XX
R247 10k
R125 1.5
1/8W
R253 10k
R530 1.5
1/8W
R572
0
R194
2200
R531
1.5
1/8W
R235
9100
R561
1k
5V
R212
560
R562
1k
R220
560
R211
6800
R227
2200
R213
1k
R218
22k
R221
2200
R214
10k
R275
120k
R228
560
R257
18k
R234
12k
R216
22k
R217
10k
R215
220k
R290
1800
R225
0
R250
1
1/10W
R249
1
1/10W
R248
1
1/10W
R245
1
1/10W
R269
XX
R268 100k
R244
15k
R271
10k
R262
68k
R256
12k
R259
0
R266
XX
R270
10k
R517
3900
R518
1500
R288
XX
R287
XX
R226
XX
C510
0.01u
C096 0.1u
B
C090
0.47u
B
C093 0.1u
B
C082 0.01u
F
C094 0.1u
B
C502
XX
B
C095
0.01u
F
C503
XX
B
C038
0.01u
F
C075
22p
CH
C504
0.1u
B
C501
XX
B
C055
4700p
B
C067
22p
CH
C046
0.1u
F
C091
0.01u
C049
0.1u
B
C509
0.47u
B
C076
22p
CH
C066
22p
CH
C080
0.1u
B
C042
180p
CH
C073
6800p
B
C079
0.001u
B
C120
0.1u B
C099
6800p
B
C104
0.001u
B
C105
0.1u
B
C505
0.1u
B
C111
0.01u
F
C506
0.1u
B
C128 0.1u
B
C129
0.1u
B
C126
0.1u B
C081
0.1u
F
C121
0.1u
50V
F
C086
0.01u
F
C102
0.01u
C101
0.01u
C107
0.1u
F
C122
6800p
C106
0.01u
C112
0.1u
F
C048
0.1u
B
C119
0.001u
C118
27p
CH
C117
8200p
B
C115
8200p
B
C113
8200p
B
C108
0.047u
C133
0.01u
F
L501
47uH
L014
47uH
L011
L008
L010
L013
L502
47uH
CL099
CL101
CL102
CL103
CL506
CL082
CL507
CL508
CL070
CL509
CL510
CL069
CL074
CL088
CL087
CL073
CL076
CL072
CL071
CL075
CL521
CL077
CL520
CL523
CL522
CL524
CL525
CL526
CL124
CL527
CL123
CL130
CL097
CL121
CL098
CL125
CL126
CL129
CL090
CL128
CL127
CL089
CL096
CL132
CL131
CL094
CL093
CL095
CL092
CL091
CL120
CL107
CL104
CL105
CL106
CL108
CL115
CL109
CL110
CL111
CL112
CL113
CL114
CL117
CL116
CL119
CL118
CL100
C511
47u
6.3V
C087
22u
20V
C512
1u
50V
C092
47u
6.3V
C083
22u
20V
C054
22u
20V
C058
22u
20V
C078
10u
16V
C123
10u
16V
C088
1u
50V
C507
XX
C508
47u
6.3V
C103
47u
16V
LND002
LND003
LND001
LND004
CN007 15P
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CN008 14P
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CN006
15P
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CN005
9P
1
2
3
4
5
6
7
8
9
IC022
LB1897D
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
IC501
PQ30RV11
1
2
3
4
IC019
BA10358F-E2
1
2
3
4
5
6
7
8
IC012
MB3775PF-G-BND-ER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
IC503
LB1897D
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
IC018
UPC339G2-E2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
IC016
BA10358F-E2
1
2
3
4
5
6
7
8
IC008
TC74VHC125F(EL)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
D003
XX
D004
SB10-05PCP-TD
D501
SB10-05PCP-TD
Q012
2SA1242-Y(TE16L)
Q501
2SB709A-QRS-TX
Q502
2SA1242-Y(TE16L)
Q008
MSD601-RT1
Q009
MSD601-RT1
Q014
UN2213-TX
Q018
XX
D502
MA151A-TX
D510
XX
D511
XX
Q019
XX
RV005
XX
1
A
M
M
IC021
CXA1793N-E2
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
IC017
TC74HC4053AF(EL)
1
2
3
4
5
6
7
8
9
1
01
11
21
31
41
51
6
D1
D2
D10
D3
D4
D5
D6
D9
D11
D7
D8
C8
C7
C11
C9
C6
C5
C4
C3
C10
C2
C1
MC52
MC22
MC23
MC24
MC25
S3
S2
S1
MC78
D4
D3
D6
D5
D2
D1
D9
D10
D11
C11
C10
C9
C4
C3
C6
C5
C2
C1
MC46
A4
MC45
MC44
FG2
FG1
SE2
A5
14V
14V
MC72
MC29
MC91
MC92
MC27
A5
M-GND
MC89
3.1V
MC51
A1
MC58
A2
MC57
MC94
MC93
SE2
MC43
A3
MC56
WHE(-)
WHE(+)
REEL V
UHE(-)
UHE(+)
HE VCC
VHE(-)
VHE(+)
HE GND
REEL U
REEL W
FG OUT(-)
FG OUT(+)
FG VCC
FG GND
WHE(-)
WHE(+)
UHE(-)
UHE(+)
HE VCC
VHE(-)
VHE(+)
HE GND
FG OUT(-)
FG OUT(+)
FG VCC
FG GND
CAP V
CAP U
CAP W
DRUM W
DRUM V
DRUM U
GND
S T REEL FG
REEL LED
L T REEL FG
COM
TOP SENS
COM
MODE SW A
MODE SW B
MODE SW C
MODE SW D
LM LOAD
LM UNLOAD
FG
PG
SENSER VCC
SHIELD
SHIELD
SHIELD
SHIELD
CC DOWN SW
EL 5V
S EL OUT
EL GND
47p
05
15
14
13
12
11
10
9
8
7
6
5
4
3
2
L
K
J
I
H
G
F
E
D
C
B
20
19
18
17
16
21
M
N
O
CM-56 BOARD (2/2)
CN202
TO MD-65 BOARD
(SEE PAGE 4-91)
M904
REEL
MOTOR
M902
CAPSTAN
MOTOR
-REF.NO.:4,000 SERIES-
SERVO,SYSTEM CONTROL
XX MARK:NO MOUNT
IC012
IC008
IC017
IC016
IC018
IC503
IC019
IC021
IC501
IC022
TO MD-64 BOARD
CN002
(SEE PAGE 4-92)
MC90
REC
REC/PB
Capstan servo(speed and phase)
Drum servo(speed and phase)
SIGNAL PATH
Capstan phase servo
Drum phase servo
Capstan speed servo
Drum speed servo
PB
P
1-2
UNSW_3.1V
1-1
SW_3.1V
MOTOR_GND
SW_5V
1-7
1-6
EL_GND
1-5
SW_5V
1
TO CM-56 BOARD (1/2)
(SEE PAGE 4-102)
UNSW_14V
SW_5V
MOTOR_GND
UNSW_6V
SW_3.1V
FG_GND
1-8
1-3
1-4
Summary of Contents for DSR-20MD
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Page 223: ... 294 DSR 20MD 20MDP 9 974 189 11 Sony EMCS Co 2007E0500 1 2007 5 Published by Kohda TEC ...