Schematic Diagram - Sharp MD-MT877S Service Manual

MD-MT877/MD-MT877C
MAIN PWB-A
A
PLAYBACK SIGNAL
RECORD SIGNAL
B
C
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
CN101
1
OPIC
OPTICAL PICKUP
TP352
D
IC351
8 7
GND
9 6
10 5
4
11
12 3
C357
2
13
0.1
14 VCC 1
C354 0.1
C353
10/6.3
D351
SBE803
5 4 3 8 7 6 5
4 3
C351
2
N.C.
47P
5 1
(CH)
1 2 1 2 3
E
R361
C361
15
0.039
IC353
FTD2005
HEAD DRIVER
F
MOTOR DRIVE
9 8 7 6 5 4 3 2 1
11 10
CN601
11 1
G
M902
SLED
COM MOTOR
U
W W
M M
U V
V
M901
SPINDLE
–
M903
MOTOR
M
LIFT
MOTOR
+
MECHANISM FLEXIBLE
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 28.
• The numbers 1 to
1
C109
C111 1
1
C114 R111
C112
5P(CH) 12K
0.1
48 47 46 45 44 43 42 41 40 39 38 37
1+2
1234
EFMAGC
CK111
RF1
1
R
CK112
RF2
2
and
CK113
RF3
3
SW DIFF
CK114
RF4
4
C102 1
C103 REFI
5
1
6 REFO
TP144
IC101
TP144 AOUT
BIAS
7
ASW
R131
R132
VCC2
8
1M
OPICPW
150K
AIN
9
BIN
MODE
10
R133 BSW
R134
11
1M
150K
12
13 14 15 16 17 18 19 20 21 22 23 24
R136 R140
390K 390K
R138
390K
IC101 IR3R58M
RF SIGNAL PROCESSOR
T–
R161
C165
T+
1.2K
0.033
F+
F–
15
TP122
2
20 21 22
22
L171
10 H
TP105A
TP487A
C172 C171
33/6.3 33/6.3
+B
R920
100K
3 0V
2
4.22V
Q901
1
RN1104
0V
+B
R351
3.9
5 4
G
N.C.
TP351
6 O2 3
I2
7 2
O1 I1
8 G 1
VCC
IC651
LB1938T
4
MOTOR DRIVE
C901
1
C912
0.1 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
49
50
C911
51
0.1
52 EXTCLK
49
C602 L602 53 N.C. C2P 32
1 22 H 54 H2PG2 50 C1M 31
51 C1P
C601 55 H2ROUT 30
1 56
H2VM
IC601
57 H2FOUT
C603 L603 58 H2PG
19
62 H1FOUT
1 4.7 H 59 H1PG1
18
63 H1PG
C604 60 H1ROUT
17
IN1F
64
1 H1VM
61
62
L604
63
22 H
64
1 2 3 4 5 6 7 8 9
IC601
BD6640KV
+B
15 are waveform numbers shown in page 37.
2
Figure 30 SCHEMATIC DIAGRAM (1/2)
+B
TP139
EFMO
C131 CK203
0.1
CK202
2-1
36
C132
ADAGI
CK201
35
0.22
34
ADAGC 1
33 ADIPNF
CK108
N.C.
ADIPO
32
11
GND2
31
14
WBO
C113
10
30
1
29 TP209
TP210
N.C.
SW 28
CK102
27
DISC
26
SGAIN
FOK CK204
25
4
CK205
SENSE
TEMP
CIN CK206
3
R139
DINT
39K
C133
R204
TP211
0.22
1K
XRT
SYD0
SYD1
C204
SYD2
0.47
SYD3
SYD4
+B
SYD5
TP100
SYD6
C124
SYD7
R102 330P
SYWR
22K
SYRD
SYRS
R101
LDVAR
22K
9
LDON
OPICGA
C121
TP201A
220P
+B
TP487
+B
EFMO
D651
F10J2E
LDCNT1
LDCNT2
SPIN
R909
C902
10K
0.01
SLCNT3
SLCNT2
32
SLCNT1
31
30 R906 R905
13
270K 100K
ASGND 29
BRK– 28
S2
SPDRR
S1 BRK+
27
SGND R907
FG 26
C910 0.047
180K
CSL2 25
C909 0.047
CSL1 24
C908 0.33 R908
CST 23
SPVIN 100K
RIB
22
SPUIN
R903
SPCOM 21
PWIN1
C907 0.0022
470
SPWIN
20
C906 0.0022
19
C905 0.0022
18
17
R904
11
10 12 13 14 15 16
10K
L608
10 H
C608
1
R403
2 1K
3
1
TP901
SW901
DISC PROTECT
+B
3 4
– 30 –
TP202
R207 TP204
R222
680
1M
C211 5P(CH)
C212
XL201
8P(CH)
L204
33.8688MHz
CK207
TP208
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
76
77
78
79
OPTCNT
73
ADDATA 48 ACRCER
80
DAPON
74
DADATA 49 PLCK
81
ADPON
75 FEMON
50
82 EFMO
FOK
RAWEX
76 TOTMON
51
83 X700KO
SENSE RARASX
77 TEMON
84 52
TCRS
COUT
78
HDON
85
MCCK IC201
C203
86
DINTX
0.1
LR378161
87
VDD2
RACASX
88
DGND
ENDEC/SERVO
89
RSTX RAOEX
/ATRAC
90
SYSD0
91
SYSD1
92
SYSD2
1 23
EFMMON SLDRR
93
SYSD3
2 24
AVCC SPDRF
94
SYSD4
25
98
SYWRX SPDRR
95
SYSD5
26
99
SYRDX RAA3
96
SYSD6
27
100 SYRS
RAA2
97
SYSD7
98
99
100
1 2 3 4 5 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
6
+1.5V
TP206
TP201
C207
R206
0.1
100K
R205
27K
+B
R422
100K
OPICGA
BEEP
SGAIN
25 24 23 22 21 20 19 18 17
DISC
26
TP415
27
AUSCLK
28 RACLK
AUDATA
29
RADAT
CHGCNT 23
RFPCNT
30 CHGCNT
DSPDAT 24
BUZOUT
31 DSPDAT
DSPSTB
32 DSPSTB 25 SGAIN
DSPSCK
33 DSPSCK 26 DISCP
PBMUTE
34
PBOPON 27 MCMON
35 P11
TP412
CIN
36 CIN
SPIN
37 SPIN
IX0419AW
DINT
38 DINT
DISCPR
SYSTEM
39
DISCPR
40 ARQD
MICROCOMPUTER
C130
41 P17
0.1
+B
42 AVSS
49
RKEY
43 LDVAR
LDVAR 50
STDCK
44
51
PLVDCI
45 RKCNG
TEMP
52
46 PLVBAT
TEMP
47 HKEY2
48 HKEY1
49
50
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
N.C.
R406
22K
SW401
EJECT
TP406
TP610
C605 C600
0.1 22/6.3 +B
C431
0.47
5
TP212
CK225
50
49
CK224
48 TP203
47 1 24
CK222
RAA11 VCC GND
46 2 23
RAD0
I/O1 I/O4
3 22
45
RAD1 I/O2 I/O3
44 4 21
WE CAS
43 5 20
RAS
OE
42 6 19
RAA9 N.C. A9
41
RAD3
7 18
40 A10 A8
RAD2
39 8 A0 A7 17
9 16
38 A1 A6
DGND
37 10 A2 A5 15
36 11 A3 A4 14
RAA8
TP200
35 12 13
VCC GND
RAA7
34
C202
RAA6
33 47/6.3
RAA5
32
RAA4
IC202
31
VDD2
30
IX2824A
RAA10
29
RAA0
16MBIT
28
RAA1
27
D-RAM
26
12
L202
1 6
10 H
L100
2 5
10 H VCC2R5V
3 4
C151 Q103
0.01
FDG312 P
+2.7V
R151
100K
IC40
58X24
EEPR
R411
100K
R412
15K
TP409 5
6
TP408
7
8
TP411
R414
9 8 7 6 5 4 3 2 1
16 15 14 13 12 11 10 1K
TP413
100
99
98
97
EEPD
1
SYRS
96
EPCS
(GREEN)
2 SYRD
95
LEDCNT2
98
EEPK 94 TP40
CKSTP
XRT
99 93
EPRT
XRST
HREC
100 92
PCNT1
REC
91
_PLAY
IC401 EMPH0
90
EMPH0
PCNT2
89
PCNT2
TP40
DCON
88
DCON
PCNT3
87
PCNT3
PBAULT
86
PBLAT
85
LDON
BATON
84
BATON
74 DCNT1
FOK
83
DCNT1
75 (OG)
DCEXT
82
LEDCNT3
76 STOP
RMDAT
81
STOP
(BLUE)
77
PCLDI
80
LEDCNT1
ELON
78
SCK0 79
ELON
78
77
76
TP402
TP400
R407 C401
0.1
100K
XL401
FP66 D432
3.68MHz 1SS372
R408
100K
IC431
S-80820LNP
D431
1SS361
RESET
1 4
VSS R462
OUT
22K
R464
R431
2 3
VDD N.C.
220K
330K
C454
0.0022
6