Table of Contents
Advertisement
MDS-NT1
6-1.
BLOCK DIAGRAM – SERVO Section –
HR901
OVER WRITE HEAD
48
OPTICAL PICK-UP BLOCK
(KMS-262E)
I
I
1
J
RF AMP
J
2
F
B
C
B
I
J
D
A
A
A
4
B
5
I-V
C
E
AMP
6
D
DETECTOR
7
C
D
E
E
8
I-V
F
F
AMP
9
AUTOMATIC
ILCC
APC
LD/PD
POWER CONTROL
11
AMP
Q202, 203
PD
LD
LASER DIODE
LASER ON
PD
PD
SWITCH
10
Q201
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC401
16
PSB
SPFD
6
OUT4F
IN4R
3
M101
M M
SPRD
(SPINDLE)
OUT4R
8
IN4F
4
27
OUT2F
IN2F
29
M102
M
(SLED)
25
OUT2R
IN2R
30
2-AXIS
DEVICE
FCS+
IN3F
12
OUT3F
14
10
IN3R
15
OUT3R
FCS–
TRK+
21
OUT1F
IN1F
19
TRK–
23
OUT1R
IN1R
18
MOD
HF MODULE
SECTION 6
DIAGRAMS
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER
IC201 (1/2)
OVER WRITE
HEAD DRIVE
115
IC181, Q181, 182
73
SCTX
72
75
74
47
RF AMP,
FOCUS/TRACKING ERROR AMP
67
IC101
68
RFO
AGCI
RF AGC
RF
46
40
38
70
& EQ
EQ
WBL
B.P.F.
AUX
33
PEAK
3T
37
TEMP
PEAK &
BOTM
BOTTOM
36
WBL
AT
ADFM
ADIN
ADFG
B.P.F.
29
30
32
91
AMP
ABCD
ABCD
35
AMP
FOCUS
FE
34
ERROR AMP
94
TE
26
TRACKING
SE
ERROR AMP
28
COMMAND
SERIAL/PARALLEL
V-I
F0CNT
20
CONVERTER,
CONVERTER
DECODER
12
16
17
18
COMPARATOR
100
15
80 78 79 86 85 76 77
SFDR
108
ANALOG MUX
SRDR
107
A/D CONVERTER
DIGITAL SERVO
SIGNAL
FROM CPU
FFDR
PROCESS
104
INTERFACE
FRDR
105
XLRF
XLAT
97
AUTO
CLRF
SCLK
98
SEQUENCER
DTRF
SWDT
99
TFDR
103
DIGITAL SERVO
TRDR
102
SIGNAL PROCESSOR
IC201 (2/2)
17
IC201 (1/2)
TX
EFMO
SAMPLING
FILI
RATE
CONVERTER
PCO
PLL
CLTV
FILO
DIGITAL
ASYO
AUDIO
INTERFACE
ASYI
COMPA-
RFI
RATOR
CLOCK
GENERATOR
INTERNAL BUS
SUBCODE
PROCESSOR
ADIP
ADFG
DEMODULATOR/
DECODER
CPU
MONITOR
INTERFACE
CONTROL
F0CN
SPINDLE
SERVO
110
109
14 13
16
12
11 10 6 7 8
1 2 3 4
16
18
23
49
30
29
31 51
55 54
IC701
87
IOP
LDON
43
48
D. RESET
SYSTEM CONTROLLER
46
WRPWR
IC301 (1/2)
42
MOD
65 64
3
6
LOADING
REFERENCE
MOTOR DRIVE
VZ
5
VOLTAGE SWITCH
IC440
Q401, 440
7
2
M
M103
(LOADING)
EEPROM
IC195
HF MODULE
SWITCH
Q701 – 704
36
36
ADDT
32
DATAI
DADTI
27
XBCKI
XBCKI
29
LRCKI
LRCKI
28
DIN0
24
DIN1
DIN1
25
DOUT
26
DADT
DADT
33
XBCK
BCK
35
LRCK
LRCK
34
FS256
FS256
36
X801
OSCI
90.3168MHz
19
OSCO
20
D-RAM
IC152
XOE
38
22
OE
XWE
37
4
WE
XRAS
47
5
RAS
XCAS
46
23
CAS
SWDT
SCLK
LIMIT-IN
45
(LIMIT IN)
+5V
REC-SW
47
63
LOAD-LO
53
OUT-SW
PLAY-SW
50
–1
REFLECT
SDA
5
57
SDA
58
(REFELECT RATE DETECT)
SCL
6
52
SCL
WP
7
56
EEP-WP
PROTECT
59
–2
S102
DADTI, XBCKI,
LRCKI, DIN1
A
(Page 37)
DADT, BCK,
LRCK, FS256
B
(Page 37)
SWDT, SCLK
(Page 37)
C
SIGNAL PATH
: PLAY
: REC
S101
S105
(REC)
S103
(OUT)
S104
(PLAY)
S102-1
S102-2
(PROTECT DETECT)
Advertisement
Table of Contents
