Service manual
MD-MT821/W
– 30 –
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Figure 30 SCHEMATIC DIAGRAM (1/4)
P30
P31 P32
• NOTES ON SCHEMATIC DIAGRAM can be found on page 28.
OPTICAL PICKUP UNIT
16
R422
100K
L204
R207
680
18
15
14
13
D351
SBE803
5
4 3
2
1
TP602
R920
100K
Q901
RN1104
R361
15
C361
0.039
C351
18P
(CH)
IC354
HAT2050T
FEX 2
PACKAGE IC
IC401
IX2792AF
SYSTEM
MICROCOMPUTER
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
TP657
TP351
R351
5.6
C357
0.1
IC351
74ACT02T
HEAD DRIVER
14
13
12
11
10
9
8
7
6
5
4
3
2
1
C354
0.1
C353
10/6.3
TP664
TP665
TP666
TP212
C204
0.47
TP211
TP487
TP204
TP901
R403
1K
R922
100K
R921
330
TP400
TP412
TP413
TP202
C651
1
C622
0.1
C602
1
C601
1
L602
47µH
L601
47µH
C610
1
C609
1
C608
1
TP601
L608
47µH
L609
47µH
L610
47µH
IC601
17A39TD
PWM DRIVER
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
8
1
7
1
6
1
1
5
4
1
1
3
1
2
1
1
1
0
9
8
7
6
5
4
3
2
1
TP207
R426
R601
56K
TP417
TP416
R404
100K
TP205
R222
1M
XL201
33.8688MHz
C211
5P(CH)
C212
8P
(CH)
CK207
TP203
CK224
CK222
L603
47µH
L604
47µH
C603
1
XL401
R407
10K
TP404
TP403
TP410
TP407
TP409
TP411
R412
10K
R411
100K
IC402
S29L294A
EEPROM
8
7
6
5
4
3
2
1
R415
1K
TP408
R413
1K
R414
1K
L171
10µH
TP206
C207
0.1
TP663
TP662
TP661
TP660
TP659
TP658
TP656
TP655
TP654
TP653
TP652
TP651
TP209
TP210
CK201
CK202
CK203
CK206
CK205
CK204
R205
680K
R906
270K
R905
100K
C910
0.033
C908
0.22
C906
0.0022
C909
0.033
C905
0.0022
C907
0.0022
IC901
BA6966FV
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
R902
1
R901
1
R904
33K
R903
330
C903
3.3
IC201
LR37811
ENDEC
LSI
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
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
TP201
TP208
C201
22/6.3
CN601
16
15
14
13 12
11
10
9
8
7
6
5
4 3 2 1
M
M903
LIFT
MOTOR
PH901
GP1S93K
M
M902
SLED MOTOR
M
M901
SPINDLE
MOTOR
SW902
DISC
PROTECT
C165
0.033
R161
1.2K
C122
270P
(CH)
C121
270P
(CH)
C124
390P
C123
390P
TP139
TP100
R103
22K
R104
22K
R102
22K
R101
22K
TP119
TP115
TP105
TP101
TP109
TP106
TP102
TP108
TP103
TP114
TP110
TP118
TP111
TP121
TP122
TP120
TP117
TP116
22
21
20
19
18
17
16
15
14
13 12
11
10
9
8
7
6
5
4 3 2 1
CN101
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
25
24
23
22
21
20
19
18
17
16
15
14
13 12
11
10
9
8
7
6
5
4 3 2 1
25
24
23
22
21
20
19
18
17
16
15
14
13 12
11
10
9
8
7
6
5
4 3 2
1
8
7
6
5
4 3 2 1
8
7
6
5
4 3 2 1
7
74
73
72 71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54 53
52
51
L100
10µH
R206
270K
C172
33/6.3
C171
33/6.3
75
74
73
1
2
3
52
51
74
75
1
2
2
5
2 4
53
52
51
25
24
C130
0.1
CK106
TP151
TP145
R105
390K
C103 1
TP144
R154
1.2K
CK101
C161
1
CK104
C102 1
IC101
IR3R55
36
35
34
33
32
31
30
29
28
27
26
25
12
11
10
9
8
7
6
5
4
3
2
1
C110
0.22
CK103
C106
0.22
CK102
C109
1
C107
0.012
C104
0.027
Q101
2SA17457
48
47 46
45
44
43
42
41
40
39
38
37
24
23
22
21
20
19
18
17
16
15
14
13
R106
56K
CK108
CK107
TP133
TP132
TP131
TP130
C112
0.033
C111
0.0033
CK112
22
21
20
19
18
17
16
15
14
13 12
11
10
9
8
7
6
5
4 3 2 1
C203
0.1
R204
1K
C205
0.1
C100
10/6.3
R907
180K
R908
100K
C902
0.01
R909
10K
L651
56
IC651
LB1930M
MOTOR DRIVER
10
9
8
7
6
5
4
3
2
1
L600
2.2µH
C600
22/6.3
TP610
C605
0.1
C604
1
R408
100K
SW402
HOLD
SW403
DISC IN
3
2
1
4
TP441
C911
0.1
NC
NC
NC
NC
NC
NC
NC
ELON
ELLVL
AU D ATA
PBAULT
INNSW
PDCNT
EFMO
HDON
DISCPR
INNSW
DISCPR
SPIN
X176KO
SLDRF
SLDRR
TRDRF
TRDRR
FODRR
FODRF
DCNT1
SPDRF
SPDRR
CIN
PDCNT
SPIN
RFLAT
OPICGA
LDON
INPGCK
INPGIN
MCPGIN
EMPH0
PBMUTE
BEEP
AUSCLK
RCAULT
RCPCNT2
PCNT1
HSTOP
DSPDAT
DSPSTB
DSPSCK
SYD7
SYRS
SYRD
SYWR
SYD6
SYD5
SYD4
SYD3
SYD2
SYD1
SYD0
DINT
MCCK
CIN
SENSE
FOK
2.0V
PF4
SCK0
P33
PE3
SPWDS
P14
P24
DINT
S1
S2
G1
D1
S2
G2
S1
D2
D2
S2
S2
G2
G1
S1
S1
D1
RI4
FI4
FI3
RI3
VD4
FO4
PGND
RO4
VD4
VD3
RO3
PGND
FO3
VD3
GND
LG
VC
VG
RI2
FI2
FI1
RI1
VD2
FO2
PGND
RO2
VD2
VD1
RO1
PGND
FO1
VD1
OE
CLK
AGND
(JOG1)
(JOG0)
JPNP
V
C
V
S
VSS
EXTAL
VCC
uSTBY
NMI
MD2
WDTOVF
MD1
MD0
BUZOUT
RCPCNT
VSS
VSS
EEPD
UOUT
VM
VOUT
WOUT RF
RIB
STBY
BRK+
BRK– CSL2
CSL1
CST
COM
WIN
VIN
UIN
FG
VCC
GND
T+
T–
F+
F–
PCNT1
PBOPON
RCLAT
PBLAT
RADAT
RACLK
RFLAT
OPICGA
RMDAT
PLVD
R
PLVD
PLVI
N
MCM
O
VCC
GND
EFMO
TCRS
RAA2
RAA1
RAA0
RAA4
RAA5
RAA6
RAA7
RAA8
RAOEX
RACASX
RAD2
RAD3
VDD2
DGND
RAA9
RARASX
RAWEX
RAD1
RAD0
VDD1
DGND
DGND
VDD1
VDD1
DGND
BIN
EIN
FIN
AIN
AGND
TCG
SLDRR
SLDRF
TRDRR
TRDRF
X176KO
TEST2
FODRF
FODRR
TEST0
TEST1
WBI
VBAT
SYSD7
SYSD6
SYSD5
SYSD4
SYSD3
SYSD2
SYSD1
SYSD0
RSTX
DINTX
MCCK
COUT
SENSE
FOK
SFSY
SBSY
SBO
SBCK
TEMON
EMPH1
OPTCNT
DAPON
ADPON
VXI
X1I
X1O
DIN
DOUT
VDD3
DGND
LRCK
BCLK
PLCK
ACRCER
RAA10
CKS
T
PDCNT
INPGCK
INPGI
MCPGI
TEST1
TEST0
KHOLD
STOP
PLAY
RPLAY
DSPSCK
DSPDAT
DSPSTB
DISCPR
EJ
S
DCN
PRTCT
GND
DO
DI
SK
CS
VCC
NC
RK
E
AV
C
F
O
SEN
S
RESET
VCC
XTAL
EMPH0
SWPUP
INNSW
VSS
LDON
SYRS
SYRD
SYWR
SYD7
SYD6
SYD5
SYD4
SYD3
SYD0
XR
S
EEPK
EPCS
AV
S
V
LDV
A
TE
M
HKE
Y
HKE
Y
+
–
HEAD
COM
W
U
V
–
+
OPICGA
AU D ATA
AUSCLK
TEMP
LDVAR
RFLAT
LDON
T–
F+
T+
F–
EFMO
LDCNT2
LDCNT1
SPDRR
SPDRF
SLDRR
SLDRF
TRDRR
TRDRF
FODRR
FODRF
X176KO
FEMON
DADATA
ADDATA
DFCK
TOTMON
EFMMON
AVCC
EFMI
SYRS
SYWRX
SYRDX
RAA3
NC
ELONL
REC
ELONH
VSS
IRQ1
APQD
IR
Q
NC
N
N
HD
O
PC
N
NC
CIN
SPIN
SYD2
SYD1
NC
LDCNT2
LDCNT1
X700KO
SPDRR
SPDRF
NC
LOGIC
LPF
HPF
R
and
SW
DIFF
DIFF
EFM
AGC
ADIP
AGC
BIAS
RF1
RF2
RF3
RF4
REFI
REFO
RFADD
TCGI
AIN
BIN
EIN
FIN
BIAS
AVCC
STBY
DISC
SGAIN
AGND
DGND
DTEMP
LATCH
CLOCK
DATA
DVCC
FOUT
EOUT
BOUT
AOUT
TCGO
WBO
22KI
22KO
ADLPFO
ADIPO
ADIPI
ADAGC
ADAG
RF2-1
EFMO
EFMI
AVCC
AGND
EFMAGC
EFMAGI
TTR
GOUT
ROUT
NC
NC
1 16
MAIN PWB-A
OPIC
VCC
MP/R
B
A
COM
CVCC
VCC
DGND
AGND
E
F
T–
F+
T+
F–
RF2
RF4
RF3
RF1
LDON
DGND
LDVAR
SYRS
SYRD
SYWR
SYD7
SYD6
SYD5
SYD4
SYD3
SYD2
SYD1
SYD0
XRT
VCCENDEC
MECHANISM FLEXIBLE
PWB ASS'Y
NC
NC
G
I1
VCC
I2
G
O1
O2
NC
+2.7V
LDCNT2
LDCNT1
VPD
@
NC
NC
NC
NC
PS
NC
NC
NC
OPEN
3-PHASE BRUSH
LEESS DRIVER
PLAYBACK SIGNAL
RECORD SIGNAL
FLEXIBLE
PWB
FLEXIBLE
PWB
IC353
HAT2051T
FEX 2 PACKAGE IC
+B
+B
+B
+B
+B
+B
CK109
IC101
RF SIGNAL,
PROCESSOR
IC
2