Schematic Diagram/Wiring Side Of P.w.board - Sharp MS722 - MiniDisc Recorder - Metallic Service Manual

MD-MS722/C/WMS721W
P31 P32
P30
MAIN PWB-A
PLAYBACK SIGNAL
A
RECORD SIGNAL
B
C
CN101
1 2 3 4 5 6 7
FLEXIBLE
PWB
1 2 3 4 6
5 7
D
+B
C357
0.1
E
D352
SB0209CP
Q354
2SK2911
C351
47P(CH)
SB0209CP
Q352
2SK2911
F
16 15 14 13 12 11 10
FLEXIBLE
PWB
16
G
COM
W
M
U
V
M901
SPINDLE MOTOR
+
M
–
M902
SLED MOTOR
SPINDLE/SLED/LIFT
H
MOTOR ASSY UNIT
• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
1
ROUT
RF1
1
RF2
2
RF3
3
C102
RF4
4
1
REFI
5
TP144
C103 REFO
6
1
RFADD
C104
7
0.027
TCGI
8
R105
390K AIN
9
BIN
10
EIN
11
FIN
12
Q101
2SA17457
C161
1
C165
0.033
F–
F+
T+
TP121 T–
TP122
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
8 9
10 11 12 13 14 15 16 17 18 19 20 21 22
OPIC
PICKUP UNIT
IC351
74ACT02T
HEAD DRIVER
8 GND 7
9 6
R909
10 5
10K
11 4
3
12
2
13
R905
14 VCC 1 11 FG
100K
12 BRK–
13 BRK+
R903
14
STBY
330
C354
15 RIB
0.1
16 VCC
C353
C903 17 VM
10/6.3
3.3
18
Q353
19 WOUT
2SK2909
20 VOUT
IC901
C361
BA6965AF
0.039
3-PHASE
BRUSH LEESS
R361
DRIVER
D351
15
Q351
2SK2909
C911
0.1
R403
1K
R922
100K +B
9 8 7 6 5 4 3 2 1
CN601
1
+ -
M
M903
LIFT
MOTOR
TP601
PH901
2
Figure 30 SCHEMATIC DIAGRAM (1/4)
C112
0.033
C111
0.0033
C110
C107
0.22
C109 0.012
1/16 C106
0.22
48 47 46 45 44 43 42 41 40 39 38 37
R106
ADAGC
56K
EFM
ADIPI
36
AGC
R
EFMAGI ADIPO
35
and
DIFF
SW
34 NC
ADLPFO
DIFF
33 NC
IC101
ADIP
22KO
IR3R55
AGC 32
RF SIGNAL, CK109
22KI
PROSESSOR 31
CK108
WBO
BIAS 30
LPF HPF
CK107
TCGO
29
AOUT TP133
28
TP132
BOUT
27
TP131
EOUT
LOGIC 26
TP130
FOUT
25
R101
13 14 15 16 17 18 19 20 21 22 23 24
22K
C121
R154
270P(CH)
1.2K
C122
270P(CH)
AUDATA
C130
C123
AUSCLK
0.1
390P
RFLAT
C124
TEMP
390P
LDON
LDVAR
OPICGA
R161
1.2K
L171
10 H TP487
+B
+B
+B
EFMO
R907
180K
SPDRR
C902 R908
100K
0.01
GND 10
C910 0.033
CSL2 9
C909 0.033
8
CSL1
C908 0.22
CST 7
6
COM
C905 0.0022
5
WIN
C906 0.0022
4
VIN
C907 0.0022
3
UIN
RF 2
UOUT 1
R901
1
R902
1
+B
R404
100K
6 G 5
G
7 O2 I2 4
8 I1 3
9 O1 2
VCC
1 0 1
+B
IC651
LB1930M
MOTOR DRIVER
DCNT1 IC601
+B
L651
17A39TD
TP602 0.47 H
PWM DRIVER
1 AGND VG
36
CLK
2 VC 35
PS LG
3 34
4 OE GND 33
L609
VD1 VD3
5 32
47 H
L604
FO1 FO3
6 31
47 H
7 PGND PGND 30
L603
RO1 RO3
8 29
47 H
L610
VD1 VD3
9 28
47 H
VD2 VD4 27
10
L602
RO2 RO4
11 26
L608
47 H
PGND PGND
12 25
100 H
L601
FO2 FO4
24
13
47 H
VD2 VD4 23
14
SLDRR FODRR C601
RI1 RI3
15 22
1
SLDRF FODRF
FI1 FI3
16 21
SPDRF TRDRF
FI2 FI4 20
17
TRDRR
RI2 RI4
18 19
3 4
– 30 –
+B
TP202
TP139
L204
R207
680
TP211
C204
0.47
75 74 73 72 71 70 69
TP209
76
TP210
77
78
CK201
79
R104
CK202
SBSY
80
76
22K
CK203
SFSY
81
77
FOK
CK204
FOK
82
78
SENSE
SENSE
83
79
CIN CK205
COUT
84
MCCK CK206
MCCK
85
DINT
DINTX
86
C203
VDD1
87
0.1
R204
DGND
88
1K
XRT
RSTX
89
SYD0
SYSD0
90
SYD1
SYSD1
91
SYD2
SYSD2
92
SYD3 97
SYSD3
93
SYD4 98
SYSD4
94
SYD5 99
SYSD5
95
SYD6 100
SYSD6
96
SYD7
97
SYWR
98
SYRD
99
SYRS
100
1 2 3 4 5 6 7
TP201
(Only Serial
No. 8110180) C422
10/6.3
R422
100K
F+
F–
TP610
T–
T+
C604
1
C602
C603
1 1 L600
2.2
5
XL201
33.8688MHz
CK207
C212
8P(CH) TP212
56
68 67 66 65 64 63 62 61 60 59 58 57 55 54 53 52 51
50
CK22
49
TP20
48
CK22
47
RAD0
46
TOTMON
50 EFMO
RAD1
45
TEMON
49 PLCK
RAWEX 44
SBCK
ACRCER
48
RARASX
SBO 43
47 TCRS
RAA9 42
RAD3
41
RAD2
40
IC201
RACASX 39
LR37811
DGND 38
ENDEC LSI
RAOEX 37
RAA8 36
RAA7 35
RAA6 34
SYSD7
29 RAA0
RAA5 33
SYWRX
28 RAA1
RAA4 32
SYRDX RAA2
27
VDD2 31
SYRS 26 RAA3
RAA10
30
29
28
27
26
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
VCCENDEC
C205
0.1
L201
22 H
R206
TP206
270K
L100
10 H
C100
10/6.3
S
E
R413
1K
1
TP408
R414
2
1K
R412
3
10K
4
TP409
25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
26
27
28
SYD6
29
SYD7 SYD3
30 26
VSS SYD4
31
27
RCAULT
RCLAT SYD5
32 28
MCPGIN
MCPGI
33
INPGIN
INPGI
34
INPGCK
INPGCK IC401
35
RCPCNT2
RCPCNT
36
IX2772AF
TP416
TEST1
37
SYSTEM
TEST0
38
TP417
JPNP
39 MICROCOMPUT
R402
VCC
40
100K
RCLED
41
ELLVL
42
43
ELON
LDON 48
LDON
44
OPICGA 49 VSS
OPICGA
45
RFLAT 50 RADAT
RFLAT
46
RACLK
47
48
49
50
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 6
TP400
XL401
4.194MH
R408
D431
100K
1SS361
S
SW402
HOLD
1
C431 R431
0.47 330K
2
6