A
B
C
D
E
F
G
H
1
2
3
4
5
6
I
J
K
7
8
MDX-E100
■
SCHEMATIC DIAGRAM (MD MAIN)
TP1411
TP1303
TP1216
TP1217
TP1218
TP1215
TP1801
TP1607
30
29
28
27
26
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
TP1507
TP1506
TP1800
5
4
3
2
1
TP1210
TP1513
TP1512
TP1509
CNW2002
TP1508
TP1505
TP1504
TP1503
TP1502
TP1501
TP1500
TP1510
TP1511
TP1519
TP1518
TP1517
TP1516
TP1515
TP1514
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
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
TP1125
TP1406
TP1412
TP1413
TP1414
TP1410
TP1103
TP1136
TP1116
TP1200
TP1214
TP1601
TP1600
TP1705
TP1703
TP1704
TP1706
TP1606
TP1131
TP1211
TP1605
TP1602
TP1603
TP1702
1
2
3
TP1112
TP1117
TP1118
TP1119
TP1105
TP1106
TP1107
TP1108
TP1109
TP1115
TP1110
TP1111
TP1113
TP1123
TP1122
TP1121
TP1120
TP1104
TP1102
TP1101
TP1100
2
1
2
1
2
1
TP1520
TP1523
TP1525
TP1524
TP1522
TP1521
3
2
1
TP1701
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TP1415
TP1124
TP1132
TP1133
TP1134
TP1212
TP1207
TP1209
TP1409
TP1408
TP1407
8
7
6
5
4
3
2
1
TP1405
TP1404
80
79
78
77
76
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
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
9
8
7
6
5
4
3
2
1
TP1206
TP1208
TP1205
TP1201
TP1135
TP1126
TP1127
TP1128
TP1129
TP1130
TP1203
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 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
TP1213
TP1204
TP1202
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TP1301
TP1300
TP1302
TP1400
TP1401
TP1402
5
4
3
2
1
TP1403
TP1700
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
DFCK
L3DATA
L3CLK
L3MODE
SLN
SLP
TP
TN
FN
FP
TRDRR
FODRR
FODRF
TRDRF
SLN
SPP
SLP
SLDRF
SLDRR
SPDRF
SPDRR
LOADIN
RESET
1
2
3
SERCH
KDATA
DSCK
MDDATA
DSTB
STID
LRCK
BCLK
DFCK
DADATA
ADDATA
TN
FP
TP
FN
DADATA
ADDATA
LRCK
BCLK
STID
LDON
LDVAR
1
1
2
2
3
3
SPP
LOADIN
SPN
A9
FODRR
FODRF
TRDRF
TRDRR
SPDRR
SPDRF
SLDRF
SLDRR
DATA
CLOCK
LATCH
DTEMP
PRO
LDON
EEPD
EEPK
EPCS
A9
A0
A1
A2
A3
A8
A7
A6
A5
A4
A0
A1
A2
A3
A6
A4
A5
A7
A8
MAGNET HEAD
(RECORD)
TO CHASSIS GND
TO CHASSIS GND
RVS
RVS
FWD
SBCK
SFSY
SBO
ATTR
+
-
+
-
-
+
-
+
-
+
- +
-
+
- +
+
-
+
-
+
-
+
-
+
-
-
+
+
-
+
-
+
-
+
-
-
+
-
+
VCC
MUTE
DIN
PLL SEL
A/B
S
S
D
D
G
2.6V
G
S
D
D
G
G
S
AVCK3
VREF3.2V
T+
L3CLK
L3MODE
ADJS
EFMO-I
WBO-I
BOUT-IN
AOUT-IN
TCG
FOUT-IN
EOUT-IN
DATA LATCH
DTEMP
VREF
VREF
FIN
EIN
BIN
AIN
RF3
RF4
RF1
RF2
TRY+
VOUTL
VREFD
VSSO
SYSCLK
L3CLK
L3MODE
X700KO
EFMO
SPDRR
SPDRF
SLDRR
SLDRF
TRDRR
TRDRF
FODRR
RAA7
VDD1
FEMON
DADATA
ADDATA
DFCK
BCLK
LRCK
VXI
CDBCLK
CDLRCK
CDDATA
DGND
VDD3
DOUT
DIN
TEST4
TEST3
TESO1
EXPORT1
SYD6
SYD5
SYD4
SYD3
SYD2
SYD1
SYD0
RSTX
EXPORT0
EFMMON
SYRS
SYRDX
SYWRX
SYD7
XO
XI
DGND
VPD
SBSY
SBO
SBCK
TEMON
TOTMON
DGND
VDD1
SENSE
FOK
MCCK
COUT
DINTX
SFSY
AVCC
EFMI
AGND
TCG
AIN
BIN
EIN
FIN
VBAT
WBI
DGND
RAA4
RAA5
RAA6
RAA8
RAOEX
RACASX
RAD2
RAD3
RAA9
RAA3
RAA2
RAA1
RAA0
ACRCER
PLCK
RAA10
TCRS
VDD1
DGND
TEST0
TEST1
TEST2
X176KO
RARASX
RAWEX
RAD0
FODRF
VDD2
RAD1
HPF
LPF
AGC
ADIP
BIAS
DIFF
DIFF
SW
u
R
LOGIC
AGC
EFM
RF2
RF1
REFO
REFI
RF3
RF4
RFADD
TCGI
TCGO
EOUT
EIN
FIN
FOUT
BOUT
BIN
AIN
AOUT
DTEMP
BIAS
AVCC
STBY
DISC
SGAIN
AGND
DGND
DVCC
EFMO
LATCH
CLOCK
DATA
WBO
22KI
22KO
ADLPFO
NC
EFMI
ADIPO
ADIPI
ADAGC
ADAGI
RF2-1
AVCC
AGND
EFMAGC
EFMAGI
GOUT
POUT
CS
GND
DATA
DI
PRTCT
VCC
SK
GND
VCC
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
F-
T-
F+
SLD+
SLD-
SP+
SP-
TRY-
F+
F-
T+
T-
T-
T+
F-
F+
R/P
R/P
R/P
MINF
EFMO
D.GND
VREF3.2V
HINF
INNSW
LD+
LD-
P.GND
LD-
LD+
LEAD IN
HINF
MINF
LEAD IN
HINF
GND
MINF
PCNT0
PCNT0
PCNT0
R/P
HDON
HDON
R/P
LOADING
VREF3.2V
LD+
P-DOWN
EMPH
DINT
DOUTMT
DIGCD
DIGEX
TEST1
GND
EEPD
GND
MUTE
DSENSE
FOK
DAMUT
SYSD0
SYSD1
SYWR
SYRS
SYRD
INNER
LD-
VCC
DFS1
DFS0
PCNT1
SEACH OUT
STID OUT
CNVSS
BYTE
PCNT0
LDON
DAPON
SBSY
SYSD4
SYSD5
SYSD6
SYSD7
VREF
AVCC
S1
S2
MCCK
ST-ID
SERCH
CIN
CLOCK
ERROR
TEST2
MDRSW
XRST
KDATA
EEPK
EPCS
HINF
AVCK2
LDVAR
TESTK1
AVCK1
TEST-K
SYSD2
SYSD3
MDDATA
DSCK
TEST0
MINF
HDON
R/P
ADMUT
DSTB
VARI-P SW
FSW
LOAD IN
VSS
VCC
RESET
EEPRO
DOUT
BACKUP
BACKUP
PDOWN
4M/16M
I/O1
GND
OE
VCC
RAS
A2
A3
A5
CAS
A1
I/O2
A6
I/O4
A8
A4
A9
WE
A7
A0
I/O3
AA.GND
AA.GND
AA.GND
TEST1
VDDO
VOUTR
AVDD
AVSS
TEST2
TEST3
DATAI
DATAO
WS
BCK
L3DATA
VSSD
VDDD
OVERFL
VADCP
VADCN
VINR
VREFA
VINL
VDDA
VSSA
28 27
2
1
26 25 24 23 22 21 20 19 18 1 7 16 15 1 4 13 12 11 10 9 8 7
6
4
3
2
TP1604
2
1
2
1
2
1
2
1
5
4
3
2
1
SPN
LOADING
1
5
L3DATA
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
NC
NC
NC
MD MAIN PWB-A
1
1
3
3
2
3
2
2
1
3
2
2
1
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
SW
+2.8V
B
LDVCC
DGND
DGND
LDON
LDVAR
A
COM
RF1
F
E
RF3
RF4
VCC
AGND
MP/R
RF2
APCIN
DGND
LVVIN
F-
T+
F+
T-
LVVOUT
APCOUT
1
2
3
4
5
6
7
8
LDOUT
EXTC
APC
LW
LDVAR
LDON
DGND
VCC
T.COOL
F.COOL
1/V
1/V
1/V
1/V
MD PICKUP UNIT
FLEXIBLE
PWB
+
—
+
—
+
—
LEAD IN
HINF
GND
LOADING
MINF
M
M
M
MD MECHANISM SWITCH PWB-B
0.7V
0.7V
0.7V
0.7V
1.6V
1.78V
1.78V
1.35V
1.36V
1.6V
1.6V
1.6V
1.6V
1.6V
1.6V
1.6V
0.3V
1.6V
1.6V
1.6V
1.6V
3.2V
0V
1V
1.6V
1.6V
0.7V
0.7V
1.6V
1.6V
0.7V
1.6V
1.6V
1.6V
1.6V
3.2V
3.2V
0V
0V
0V
1.45V
3.2V
0V
0V
3.2V
SGAIN
PLAY DISC : 0V
REC DISC : 3.2V
GROUP :
3.2V
PIT : 0V
1.48V
3.2V
1.6V
0V
1.36V
1.6V
1.36V
1.77V
1.77V
1.25V
1.6V
3.17V
0V
0V
0V
0V
1.8V
1.4V
1.53V
1.63V
1.5V
1.7V
1.62V
1.56V
1.45V
1.55V
1V
0V
1.5V
1.55V
1.5V
0V
1.58V
0V
0V
1.3V
3.2V
3.2V
3.2V
0V
0V
0V
0V
3.17V
3.17V
3.17V
58V
58V
1.8V
0V
0V
3.16V
0V
0V
0V
1.5V
1.5V
3.1V
3.17V
0V
0.5V
0.6V
0.4V
0.4V
0.4V
0.9V
0.7V
0.8V
3.16V
3.15V
0V
3.17V
1.56V
1.2V
2.5V
0.8V
1.8V
1.4V
3.2V
1.2V
2.5V
1.3V
1.7V
1.3V
2.2V
0V
2.4V
1.2V
1.1V
1.5V
2V
3V
1.1V
1.1V
0V
3V
1.56V
PLAY:0V
REC:1.5V
DIN
DIGITAL IN : 1.58V
OTHER : 0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
3.2V
3.2V
3.2V
3.2V
3.2V
3.2V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
3.2V
3.2V
1.7V
1.8V
1.8V
1.4V
0V
2V
3.2V
3.2V
0V
3.2V
3.2V
3.2V
3.2V
3.2V
3.2V
3.1V
3.1V
3.2V
3.2V
3.15V
0V
0.2V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
2V
3.2V
0V
0V
0.8V
2.2V
0.2V
2.3V
0V
0V
0V
0V
0V
3.2V
0V
0V
0V
0V
0V
3.15V
3.2V
3.2V
3.2V
3.2V
3.2V
1.5V
3.1V
3.2V
3.1V
3.18V
1.44V
3.15V
3.2V
R/P
PLAY : 3.15V
REC : 0V
MINF
PLAY DISC : 2.2V
REC DISC : 0.1V
0V
0V
0V
5V
0V
0V
3.2V
3.1V
3.18V
0V
0.1V
4
1
9
8
6
7
5
3
12
2
11
10
15
16
13 14
19
18
23
22
21
20
17
24
DIGOUT
GND
DIGIN
BACKUP
PDOWN
RESET
MD-ST
DSCK
SERCH
KDATA
MDDATA
DSTB
D.GND
D.GND
D.GND
D.GND
DVDD
DVDD
PSWCK
LOAD SW
AVCC
L IN
AA.GND
R IN
AD.GND
L OUT
AA.GND
R OUT
1
2
3
4
5
6
7
8
9 10 11 12 13 14
28 27 26 25 24 23 22 21 20 19 18 17 16 15
0V
1.3V
1.4V
5V
5V
2.6V
1.4V
0V
0V
1.5V
1.5V
2.6V
2.6V
2.6V
2.6V
2.6V
2.6V
0.1V
0.1V
0V
5.2V
2.6V
1.56V
2.6V
0.1V
0.1V
1.56V
2.2V
2.2V
2.2V
2.2V
0V
1.6V
3.2V
1.6V
1.6V
1.6V
1.6V
1.6V
1.6V
0V
1.6V
1.6V
1.6V
1.6V
1.6V
1.6V
5V
0V
0V
2.1V
2.1V
2.1V
2.3V
0V
0V
3.15V
3.18V
2.1V
0V
0V
0V
2.3V
3.2V
3.2V
0V
0V
3.2V
3.2V
3.2V
3.1V
0V
0V
0.15V
0V
0V
5V
4.3V
5V
0.7V
3.1V
0V
4.8V
5.4V
5.4V
3.3V
4.8V
3.2V
3.18V
0V
0V
0V
0V
0.1V
3.08V
2.4V
3.2V
2.46V
0V
3.85V
5.4V
3.2V
0V
3.2V
1.4V
1.5V
1.4V
0V
3.2V
0V
0V
3.2V
0V
1.5V
3.17V
3.17V
1.6V
0V
1.57V
3.2V
1.57V
3.2V
0V
0V
1V
0V
0V
3.17V
1.55V
3.17V
1.2V
2.5V
1.3V
1.7V
1.3V
2.2V
2.4V
1.2V
1.1V
0V
3.2V
1.2V
2.4V
0.8V
1.8V
1.5V
2V
1.1V
1.1V
3V
1
( )
1
28
D1300
SB0209CP
C1411
330P
(CH)
C1120
0.01
C1619
330P
(CH)
R1223
100
R1444
100
C1210
22P
(CH)
D1401
SB00703Q
R1535
47
R1521
6.8K
C1302
10
R1614
100K
R1612
200K
C1304
10
L1301
47uH
C1119
1
R1811
1
C1804
2.2
C1802
10
Q1806
RN1406
Q1803
RN1406
R1808
1.8K
Q1805
2SA1314 C
R1805
270
R1803
100K
R1802
220K
C1803
100/10
3
3
2
2
1
1
L1600
1uH
C1616
100/10
C1606
10
C1608
100/10
C1612
8200P
R1617
6.8K
R1620
15K
C1615
0.0015
C1611
0.0082
R1616
6.8K
R1618
15K
C1613
0.0015
R1606
10K
R1605
10K
C1604
820P
C1603
820P
R1600
6.8K
C1601
820P
R1601
6.8K
C1602
820P
C1607
1
C1610
4.7
IC1601
BA5984FP
MOTOR DRIVER
R1510
8.2K
R1511
8.2K
R1513 47
R1512 47
R1515 1.8K
R1516 1.8K
R1519 120
C1511
22P
(CH)
L1503 4.7uH
C1506
100P
(CH)
C1504
220P
(CH)
C1502
220P(CH)
C1505
100P
(CH)
C1508
0.047
R1514
1K
C1405
680P
R1407
100K
R1410
3.3K
Q1402
RN2404
C1408
0.022
Q1401
RNC1404
R1221
10K
R1222
10K
R1219
10K
C1801
10
C1800
220/4
R1804
390
Q1804
2SA1314 C
R1806
1
R1809
1
R1807
27K
IC1801
XC62EP32
REGURATOR
C1805
1
L1200
4.7uH
L1201
0.47uH
R1700
39K
R1801
270
Q1800
RNC1407
Q1801
2SA1162 G
R1522
220
R1420
10K
R1532 1K
R1518
10K
R1520
10K
R1517
10K
C1509
0.047
C1501
1
L1501
1uH
C1503
0.33
R1531 220
R1530 220
R1529 8.2K
R1528 8.2K
Q1500
RNC1407
R1527 8.2K
R1526 1K
R1525 3.3K
CN1501
C1106
1
C1112
330P
(CH)
R1106
56K
C1105
0.0033
C1104
0.033
IC1101
IR3R55
RF SERVO/SIGNAL CONTROL
R1709
39K
R1705
39K
R1713
100K
C1203
1
C1703
0.047
C1704
47/4
C1113
270P
(CH)
R1108
22K
R1430
10K
C1117
270P(CH)
C1116
270P(CH)
C1115
270P(CH)
C1114
270P(CH)
R1112
22K
R1111
22K
R1110
22K
R1109
22K
Q1702
2SA1162 G
R1101
1
R1102
10K
Q1302
2SK2909
Q1300
2SK2909
Q1303
2SK1473
Q1301
2SK1473
L1100
0.47uH
R1103
390K
L1300
47uH
C1303
4.7
R1710
680K
R1706
1M
C1712
10/16
C1710
10/16
R1405
3.3K
R1406
100K
C1401
0.022
C1400
0.022
R1214
10K
C1702
0.01
C1711
47/4
C1716
47/4
C1715
0.01
C1706
0.01
C1708
0.01
C1705
0.047
C1709
0.01
C1713
0.01
IC1701
UDA1344
AD/DA CONVERTER
C1100
4.7
R1100
27
R1403
1K
R1402
1K
C1404
0.022
R1408
3.3K
C1600
1
C1402
680P
R1412
10K
R1409
1K
C1406
0.022
R1701
30K
C1701
47/4
R1411
1K
C1403
0.047
R1404
1K
R1210
220
R1708
27K
R1707
1K
Q1701
RNC1404
C1118
1
L1101
10uH
R1105
1.2K
C1107
0.033
CN1602
CN1603
CN1604
R1711
12
R1712
12
C1714
1
R1704
820
Q1700
2SC2412 KR
IC1702
NJM431U
REGULATOR
C1707
1
R1702
1K
R1703
3.3K
IC1300
74ACT02F
HEAD DRIVER
R1401
1.5K
R1400
2.7K
R1417
10K
R1429
47K
C1208
12P
(CH)
R1217
150
XL1201
33.8688MHz
C1209
12P(CH)
R1215
1M
C1202
1
C1206
0.0012
C1101
1
C1102
1
C1410
1
R1426 1K
C1407
0.047
R1425
100K
R1422
10K
R1424
10K
IC1402
S29294A
EEPROM
C1409
0.1
Q1400
RNC1404
Q1403
RN2404
R1428
1K
R1427 1K
R1414
1K
R1413
1K
R1423
10K
R1421
10K
IC1401
IX0290AWZZ
MD SYSTEM
MICROCOMPUTER
R1419
10K
R1416
10K
R1415
10K
Q1802
RNC1407
L1701
10uH
R1207 33K
R1206 33K
R1205 62K
R1204 62K
R1203 150K
R1202 150K
R1201 120K
R1200 120K
C1108
0.47
C1109
1
C1110
0.0047
R1107
560
C1103
0.027
IC1201
LR376484
ENDEC/ATRAC
C1207
1
R1209
100
R1211
220
C1201
10
C1205
1
R1208
220
C1204
0.047
R1212
47
C1200
1
IC1202
IX2474 AF
4M BIT D-RAM
R1304
680
D1301
SB0209CP
CN1300
R1301
10
C1301
0.027
C1300
120P
(CH)
CN1401
L1700
10uH
C1700
47/4
CW1903
C1111
0.47
CN1101
CW1901
CN1901
R1902
1.8K
R1901
470
WRITE
PRO
DISC
MEDIA
SW1953
LEAD IN
SW1954
PLAY
R1904
820
R1903
820
SW1955
RECORD
SW1956
LOADING
M902
SLED
MOTOR
M901
SPINDLE
MOTOR
M903
LOADING
MOTOR
SW1952
100K
270P
Note :
y
~
o
Connect an oscilloscope to the test points (
y
~
o
) through a
filter as shown below.
oscilloscope
test points
* All voltages are measured with a 10M
Ω
/DC electric volt meter.
* Components having special characteristics are marked
Z
and must be
replaced with parts having specifications equal to those originally installed.
* Schematic diagram is subject to change without notice.
IC1701 : UDA1344
A/D & D/A Converter
VDDA(ADC) VSSA(ADC) VADCP VADCN
Vref(A)
VINR
MC1
MC2
MP5
MP2
MP3
MP4
SYSCLK
VOUTR
Vref(D)
VSSA(DAC)
VDDA(DAC)
VSSO
VDDO
VOUTL
MP1
DATAI
WS
BCK
DATAO
VSSD
VDDD
VINL
ADC
0dB/6dB
switch
ADC
DECMATION FILTER
DC-CANCELLATION FILTER
DIGITAL
INTERFACE
L3-BUS
INTERFACE
DSP FEATURES
INTERPOLATION FILTER
NOISE SHAPER
DAC
DAC
UDA1344
2
3
4
5
1
7
8
9
6
12
13
14
15
11
17
18
19
10
16
22
23
24
25
21
27
28
20
26
IC1202 : IX2474AF
4M Bit D-RAM
4
RAS
5
17
15
CAS
A0
A9
WE
DQ0~DQ3
20
VSS
VBB
17
CAS
Clock Generator
CBR Refresh
Counter
Row Address
Buffer
Memory
Cell
I/O
Selection
Write Clock
Generator
Data Input
Buffer
Data Output
Buffer
Row Address
Buffer
On ChipVBB
Generator
Row Decoder
Column Decoder
Sense Amp.
Word Driver
SELF Refresh
Timer
3
OE
16
IC1402 : IX2474AF
EEPROM
PROTECT
WRITE
PROTECTION
MEMORY ARRAY
BANK 1
BANK 2
ADDRESS
DECODER
OUTPUT BUFFER
DATA RESISTER
MODE DECODER
LOGIC
CLOCK GENERATOR
Vcc
GND
DO
DI
CS
SK
NC
DO
GND
1
2
3
4
5 DI
PROTECT
6
7
8
VCC
CS
SK
E-48/J-46
q
to
@4
: TEST POINT WAVEFORMS (See page E38/J36)
P-E49/J47
[A-2]