Service manual
MD-R2
– 34 –
NOTES ON SCHEMATIC DIAGRAM can be found on page 43.
Figure 34 SCHEMATIC DIAGRAM (5/6)
A
B
C
D
E
F
G
H
1
23456
1
2
3
4
5
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
100
99 98
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
373839404142434445464748
5
6
7
8
1234567
14 13 12 11 10
98
1
2
1
2
1
2
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
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10111213141516171819202122232425262728
1
2
4M/16M
E
RESET
VCC
VSS
LOAD IN
FSW
VARI-P SW
DSTB
R/P
HDON
MINF
TEST0
DSCK
MDDATA
TESTK2
AVCK1
TESTK1
LDVAR
AVCK2
HINF
KDATA
MDRSW
TEST2
ERROR
CLOCK
CIN
SERCH
ST-ID
MCCK
S2
S1
AVCC
VREF
SYSD7
SYSD6
A
D
BYTE
CNVSS
STID OUT
SEACH OUT
LD–
INNER
SYRD
SYRS
SYWR
DAMUT
FOK
DSENSE
MUTE
GND
TEST1
DOUTMT
DINT
P-DOWN
LD+
VREF3.2V
LOADING
R/P
R/P
MINF
HINF
MINF
LOADING
GND
HINF
LEAD IN
MINF
LOADING
HINF
LEAD IN
LD+
LD–
LD–
LD+
INNSW
HINF
HDON
EFMO
MINF
HDON
R/P
R/P
TRY–
SP–
SP+
SLD–
SLD+
F+
T–
F–
VCC
GND
S
VC
PRTCT
DI
DATA
GND
C
S
POUT
ATTR
GOUT
EFMAGI
EFMAGC
AGND
AVCC
RF2-1
ADAGI
ADAGC
ADIPI
ADIPO
EFMI
ADLPFO
22KO
22KI
WBO
DATA
CLOCK
LATCH
EFMO
DVCC
DGND
AGND
SGAIN
DISC
STBY
AVCC
BIAS
DTEMP
AOUT
AIN
BIN
BOUT
FOUT
FIN
EIN
EOUT
TCGO
TCGI
RFADD
RF4
RF3
REFI
REFO
RF1
RF2
EFM
AGC
LOGIC
R
&
SW
DIFF
DIFF
BIAS
ADIP
AGC
LPF HPF
FODRF
X176KO
TEST2
TEST1
TEST0
DGND
VDD1
2
RAA3
WBI
VBAT
FIN
EIN
BIN
AIN
TCG
AGND
EFMI
AVCC
10
0
SYRS
EFMMON
FODRR
TRDRF
TRDRR
SLDRF
SLDRR
SPDRF
SPDRR
–
+
TRY+
RF2
RF1
RF4
RF3
AIN
BIN
EIN
FIN
VREF
VREF
DTEMP
WBO-I
TCG
AOUT-IN
BOUT-IN
EOUT-IN
FOUT-IN
EOUT-IN
FOUT-IN
TCG
AOUT-IN
BOUT-IN
WBO-I
EFMO-I
EFMO-I
ADJS
L
L
3
T+
REG+
REGB
IN1+
VBS1
Vm1
IN1–
OUT1
VM1–
VM1+
GND
VM2+
VM2–
OUT2
IN2–
IN2+
MUTE1
MUTE2
SS.GND
VREF
VREFO
OUT4
IN4–
IN4+
IN5+
IN5–
OUT5
VM5–
VM5+
VM4+
VM4–
VM3–
VM3+
GND
IN3+
Vm2
VBS2
IN3–
OUT3
CH3IN
AVCK3
1.25V
S
G
G
D
D
S
G
G
D
D
MAGNETIC
HEAD
S
S
A3
A2
A1
A0
SYRS
SYRD
SYWR
SYD7
EEPD
PRO
DTEMP
LATCH
CLOCK
DATA
SLDRR
SLDRF
SPDRF
SPDRR
TRDRR
TRDRF
FODRF
FODRR
SYD4
SYD5
SYD6
SYD7
SYWR
SYRD
SYRS
FOK
DATA
LATCH
CLOCK
SPN
MCCK
LOADIN
CIN
DSENSE
DINT
SERCH
SPP
RESET
LDVAR
DTEMP
LDVAR
LDON
STID
DSCK
KDATA
MDDATA
DSTB
FODRR
FODRF
SPDRR
SPDRF
TRDRF
TP
TN
FN
FP
SLDRF
SLDRR
SLN
SLP
SPP
SPN
SLP
SLN
FN
TP
FP
TN
TRDRR
2
1
3
1
23
1
1
22
33
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
LATCH
DATA
31 32
33 34 35 36 37 38 39 40 41 42 43 44
45 46 47 48 49
SYSD5
SYSD4
49 50
100
99 98 97 96 95 94 93 92
91 90 89 88 87 86 85 84 83 82
ADMUT
EMPH
82 81
1
2
Q1252
2SK2909
Q1254
2SK1473
Q1251
2SK2909
Q1253
2SK1473
TP1601
CNP1601
CW1901
TP1602
TP1604
TP1605
TP1260
C1252
120P
(CH)
TP1255
C1251
0.027
R1251
10
CNP1252
D1252
SB0209CP
D1251
SB0209CP
R1223
680
TP1251
TP1252
CNS1252
C1211
1
TP1275
C1202
1
IC1101
IR3R55
SIGNAL
PROSESSOR
C1104
0.027
C1105
10
TP1132
TP1133
TP1134
TP1135
TP1136
R1102
560
TP1137
C1106
0.47
C1107
0.0047
C1109
1
C1110
0.47
TP1274
R1653
100K
R1651 100K
R1657 120K
R1655 120K
R1661 82K
R1659 82K
R1665 62K
R1663
62K
R1429
10K
R1430
10K
R1422
10K
IC1401
IX0232AW
MD SYSTEM
MICROCOMPUTER
R1423
10K
R1424
10K
TP1405
TP1404
R1404
1K
R1401
1K
R1472
47K
Q1403
RN2404
Q1404
RNC1404
IC14
0
S2929
4
R1414
10K
R1416
10K
TP1455
TP1456
TP1457
C1402
0.047
C1661
100/10
C1103
1
C1102
1
C1210
TP1138
TP1139
C1119
TP1140
C1118
0.033
C1117
0.0033
TP1141
Q1401
RN2404
C1407
0.022
Q1402
RNC1404
R1425
2.7K
R1427
4.7K
IC1251
74ACT02F
HEAD DRIVER
L1601
1µH
CN1604
CN1603
CN1602
TP1128
TP1127
TP1126
TP1120
TP1104
TP1103
TP1102
TP1101
TP1109
TP1112
TP1113
TP1108
TP1114
TP1115
TP1116
TP1118
TP1119
TP1105
C1145
0.033
R1166
1.2K
L1101
10µH
C1121
1
TP1106
TP1107
TP1111
R1420
1K
R1408
100K
C1401
0.047
C1403
680P
R1415
1K
R1407
3.3K
C1424
0.022
R1409
1K
J1405
10K
C1412
680P
TP1609
TP1608
TP1611
C1609
1
TP1610
R1406
3.3K
C1423
0.022
R1426
1K
R1428
1K
R1100
27
C1101
1
CNP1101
FLEXBLE
PWB
TP1142
C1631
1
R1650
10K
C1650
820P(J)
R1652
10K
C1651
820P(J)
R1656
6.8K
C1653
820P(J)
TP1616
C1421
0.022
C1422
0.022
R1412
100K
R1413
3.3K
C1656
0.0056
R1662
10K
C1657
0.0056
R1664
10K
IC1601
M56758FP
C1654
0.015
R1658 15K
C1655 0.015
R1660 15K
C1602
1
R1669
6.8K
R1667
22K
R1668
6.8K
R1666
22K
TP1607
TP1606
C1254
10
C1255
4.7
L1251
47uH
R1105
390K
TP1150
L1102
0.47µH
TP1220
TP1129
TP1130
TP1123
TP1458
TP1612
R1107
1
TP1131
R1612
56K
R1153
22K
R1152
22K
R1151
22K
R1150
22K
C1115
270P(CH)
C1114
270P(CH)
C1113
270P(CH)
C1112
270P(CH)
R1154
22K
C1116
270P(CH)
R1155
56K
C1610
10
C1604
56P(CH)
C1605
100/10
Q1601
2SA1314C
R1617
47K
R1609
1.5K
R1611
12K
R1610
30K
R1614
18K
R1613
27K
R1654
6.8K
C1652
820P(J)
C1601
1
5ch MOTOR DRIVER
E
2
-PR
O
WRITE
PRO
330P
1
11
10
4
5
2
3
12
15
16
1
2
1
2
1
2
M
+
–
+
–
+
–
M901
MD SPINDLE
M902
MD SLED
M903
MD LOADING
M
M
LEAD IN
HINF
GND
LOADING
MINF
DIRECT
READ IN
MD PLAY BACK
MD RECORD
LOADING
MD SWITCH PWB-G
R1902
1.8K
R1901
470
R1904
820
R1903
820
CNS1901
SW1952
SW1953
SW1954
SW1955
SW1956
1
2
3
4
5
1
2
3
4
8
VCC
GND
LDOUT
EXT.C
APC
LVV
L.DON
L.DVAR
7
6
5
SW
+2.8V
B
LVVOUT
APCOUT
LDVCC
DGNG
DGND
LDON
LDVAR
I/V
I/V
I/V
I/V
A
COM
RF1
F
E
RF3
RF4
VCC
AGND
MP/R
RF2
APCIN
DGND
LVVIN
F-
T.COOL
F.COOL
T+
F+
T-
PICKUP UNIT
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