MDS-S50
33
33
F
C
B
D
A
E
I
J
J
I
B
A
C
D
E
F
DETECTOR
J
I
A
B
C
D
E
F
LD
PD
LASER DIODE
ILCC
PD
OPTICAL PICK-UP BLOCK
(KMS-260B/J1N)
AUTOMATIC
POWER CONTROL
Q121, 122
APC
PD
APCREF
AT
AMP
B.P.F.
WBL
ADFM
ADIN
ADFG
ABCD
AMP
ABCD
FE
TE
SE
F0CNT
WBL
3T
EQ
COMMAND
SWDT
SCLK
XLAT
RFO
RF AGC
& EQ
AGCI
EQ
RF
RF AMP,
FOCUS/TRACKING ERROR AMP
IC101
TEMP
MORFO
MORFI
3T
WBL
AUX
PEAK
BOTM
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC141
OUT4F
OUT4R
M101
(SPINDLE)
OUT2F
OUT2R
M102
(SLED)
OUT1F
OUT1R
OUT3F
OUT3R
FCS+
FCS–
TRK+
TRK–
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
IN4R
IN4F
IN2F
IN2R
IN1F
IN1R
IN3F
IN3R
MOD
SPFD
SPRD
APCREF
SFDR
SRDR
FFDR
FRDR
TFDR
TRDR
PSB
PWM GENERATOR
FROM CPU
INTERFACE
DIGITAL SERVO
SIGNAL PROCESSOR
IC151 (2/2)
RECP
AUX1
ABCD
FE
TE
SE
PEAK
BOTM
XLRF
CKRF
DTRF
XLAT
SCLK
SWDT
FILI
PCO
CLTV
FILO
EFMO
ADDT
DATAI
DIVIDER
IC171
IC151 (1/2)
TX
ASYO
ASYI
RFI
SCTX
HR901
OVER WRITE HEAD
ADFG
F0CNT
SPFD
SPRD
SAMPLING
RATE
CONVERTER
DIGITAL
AUDIO
INTERFACE
DIN0
DOUT
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER
IC151 (1/2)
INTERNAL BUS
DADT
XBCK
LRCK
FS256
OSCI
OSCO
DQSY
SQSY
XINT
SENS
SRDT
SWDT
SCLK
XLAT
MNT0 (FOK)
MNT1 (SHOCK)
MNT2 (XBUSY)
MNT3 (SLOCK)
SHOCK
XBUSY
SWDT
SCLK
SWDT
SCLK
XLATCH
MNT1 (SHOCK)
MNT2 (XBUSY)
DIG-RST
SQSY
DQSY
LDON
WRPWR
MOD
XINT
SENS
SRDT
LDIN
LDOUT
FWDIN
REVIN
MOTOR
DRIVE
CLAMP
LOADING
MOTOR DRIVE
IC440
M103
(LOADING)
DQ1 – DQ4
A0 – A9
D0 – D3
A00 – A09
XOE
XWE
XRAS
XCAS
OE
WE
RAS
CAS
D-RAM
IC153
DIN1
SYSTEM CONTROLLER
IC1 (1/2)
HF MODULE
ADDT
DADT, BCK, LRCK
(Page 34)
1024FS
(Page 34)
(Page 34)
SWDT, SCLK
(Page 34)
TX0 (CLIP)
REFLECT SW
PROTECT SW
LD-LOW
+5V
11
LIMIT-IN
REC-SW
S101
(LIMIT IN)
OUT-SW
•
SIGNAL PATH
: PLAY (ANALOG OUT)
: REC (ANALOG IN)
: REC (DIGITAL IN)
S105
(REC POSITION)
S103
(PACK OUT)
PLAY-SW
S104
(PLAY POSITION)
S102-1
(REFELECT RATE DETECT)
S102-2
(PROTECT DETECT)
–1
S102
–2
XBCKI
LRCKI
DATA
BCK
LRCK
OVER WRITE
HEAD DRIVE
IC181, Q181, 182
OPTICAL
RECEIVER
IC611
DIGITAL
IN
11
9
8
4
1
2
48
47
46
40
33
38
37
36
32
35
34
26
28
18
17
16
20
12
30
29
5
6
7
10
LASER ON
SWITCH
Q101
LD/PD
AMP
I-V
AMP
I-V
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
RF AMP
B.P.F.
PEAK &
BOTTOM
6
8
92
91
88
89
86
85
81
80
83
13
67 65 66 75 74 63 64
82
27
25
21
23
12
10
14
15
19
18
29
30
3
4
16
M
M
M
AUTOMATIC
POWER
CONTROL
DIGITAL SERVO
SIGNAL
PROCESS
ANALOG MUX
A/D CONVERTER
SERIAL/PARALLEL
CONVERTER,
DECODER
AUTO
SEQUENCER
V-I
CONVERTER
HF MODULE
SWITCH
Q131 – 134
100
60
59
62
61
53
54
57
78
79
94 93
10
12 11
14
9
8
5 6 7
1 2 3 4
43
47
16
29
27
28
26
21
20
19
23
24
22
25
17
46
44
22
3
4
23
15
ADIP
DEMODULATOR/
DECODER
SPINDLE
SERVO
COMPA-
RATOR
PLL
FILTER
SUBCODE
PROCESSOR
EFM/ACIRC
ENCODER/DECODER
SHOCK PROOF
MEMORY CONTROLLER
ATRAC
ENCODER/DECODER
CPU
INTERFACE
MONITOR
CONTROL
25
29
47
35
14
27
32
48 40
42 50
58 56
38
XRST
CLOCK
GENERATOR
49, 48, 50, 51
1, 2, 24, 25
34 – 31, 36 – 40, 45
9 – 12, 14 – 18, 5
C
D
B
A
12 13
5
6
4
2
10
30
43
51
49
67
68
44
CLK (CLIP) 46
LRCKI 34
M
REFERENCE
VOLTAGE SWITCH
Q440, 444
IOP
133
COMPARATOR
IC102
DATA
BCK
LRCK
44
45
RXO (CLIP)
MOTOR
DRIVE
WAVE
SHAPER
IC600
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM – SERVO Section –