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MDS-JE780
Ver. 1.2
6-2. BLOCK DIAGRAMS – BD SECTION –
HR901
OVER WRITE HEAD
OPTICAL PICK-UP
(KMS-260B/260E)
I
J
F
B
C
B
I
J
A
D
A
E
DETECTOR
C
D
E
F
ILCC
LD DRIVER
Q202, 203
PD
LD
LASER DIODE
LASER ON
PD
SWITCH
Q201
Iop MONITOR
AMP
3
4
IC701
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
16
IC401
PSB
6
OUT4F
M101
M M
(SPINDLE)
8
OUT4R
27
OUT2F
M102
M
(SLED)
25
OUT2R
2-AXIS
DEVICE
FCS+
12
OUT3F
10
OUT3R
FCS–
TRK+
OUT1F
21
23
OUT1R
TRK–
MOD
HF MODULE
OVER WRITE
EFMO
HEAD DRIVE
IC181
, Q181, 182
SCTX
48
47
RF AMP,
FOCUS/TRACKING ERROR AMP
IC101
I
1
RFO
AGCI
RF AGC
RF
RF AMP
46
40
38
J
& EQ
2
EQ
WBL
B.P.F.
AUX
33
3T
PEAK
37
TEMP
PEAK &
BOTM
BOTTOM
36
WBL
ADFM
ADIN
ADFG
AT
B.P.F.
29
30
32
AMP
A
4
B
ABCD
ABCD
5
35
I-V
AMP
C
AMP
6
D
FE
FOCUS
7
34
ERROR AMP
E
TE
8
26
I-V
TRACKING
F
SE
AMP
ERROR AMP
9
28
COMMAND
APC
LD/PD
11
AMP
SERIAL/PARALLEL
F0CNT
V-I
CONVERTER,
20
CONVERTER
DECODER
PD
10
12
16
17
18
SPFD
IN4R
3
SPRD
100
15
80 78 79 86 85 76 77
IN4F
4
PRWR
SFDR
IN2F
29
108
ANALOG MUX
SRDR
IN2R
30
107
A/D CONVERTER
SERVO
DSP
FROM CPU
FFDR
IN3F
14
104
INTERFACE
FRDR
IN3R
15
105
XLRF
AUTO
CKRF
SEQUENCER
DTRF
DIGITAL SERVO
TFDR
IN1F
19
103
SIGNAL PROCESSOR
TRDR
IN1R
18
102
IC201 (2/2)
DIGITAL SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
MEMORY CONTROLLER,
ATRAC ENCODER/DECODER
IC201 (1/2)
17
TX
EFMO
115
FILI
73
PCO
72
CLTV
PLL
75
FILO
74
ASYO
67
ASYI
68
COMPA-
RFI
RATOR
70
SUBCODE
PROCESSOR
ADIP
91
DECODER
CPU
INTERFACE
F0CNT
SPINDLE
94
SERVO
110 109
14 13
16 12 11 10
6 7 8
18
20
25
58 32
31
33 50
57
LDON
89
IOP
52
DIG-RST
54
WRPWR
56
MOD
67 66
5
6
VCC1 7
LOADING
VCC2 8
MOTOR DRIVE
IC461
VZ
4
2
10
M
XLAT
M103
97
SCLK
(LOADING)
98
SWDT
99
HF MODULE
SWITCH
D+3V
Q701 – 704
34
34
IC151 (1/2)
ADDT
32
SELECTOR
WAVE SHAPER
DATAI
DATAI
IC651
IC641
SAMPLING
27
RATE
XBCKI
XBCKI
CONVERTER
29
12
4
11
LRCKI
LRCKI
10
28
8
13
9
10
5
DIN0
24
6
2
DIGITAL
4
DIN1
DIN1
AUDIO
25
3
INTERFACE
DOUT
1
26
DADT
33
XBCK
35
LRCK
34
FS256
36
NC
OSCN
21
D+3V
OSCI
19
CLOCK
OSCO
GENERATOR
20
D-RAM
IC153
INTERNAL BUS
MONITOR
CONTROL
1 2 3 4
XOE
OE
38
22
XWE
37
3
WE
XRAS
47
4
RAS
XCAS
46
23
CAS
SCLK
SWDT
59 48
80
D+2.5V
D+3V
SYSTEM CONTROLLER
A+3V
IC1 (1/2)
LIMIT-IN
55
UNREG
OUT-SW
49
+12V
REFERENCE
VOLTAGE SWITCH
PLAY-SW
51
Q461,462
REC-SW
53
65
LD-LO
REFLECT
61
PROTECT
44
SDA
5
60
SDA
EEPROM
S102
(REFLECT/PROTECT DETECT)
IC195
SCL
SCL
6
45
HIGH REFELECT RATE/
WP
WRITE PROTECT
7
47
EEP-WP
LOW REFELECT RATE/
UN-PROTECT
DIN1, LRCKI, DATAI, XBCKI
E
(Page 35)
ADDT
A
(Page 35)
OPTICAL
1
RECEIVER
IN
IC611
SP
13
OPTICAL
RECEIVER
IN
OPTICAL
DIGITAL
IC621
OPTICAL
TRANSMITTER
OUT
IC631
J601
IN
COAXIAL
AEP, UK, RU
DADT, BCK, LRCK
B
(Page 35)
CLKA
XIN
C
5
PLL
1
(Page 35)
(X8)
CLOCK
GENERATOR
IC803
SWDT, SCLK
D
(Page 35)
+2.6V
REG.
IC926
+3.3V
+5V
REG.
IC933
S101
(LIMIT IN)
S103
(OUT SW)
S104
(PLAY SW)
S105
(REC POSITION)
• SIGNAL PATH
: PLAY (ANALOG OUT)
: REC (ANALOG IN)
: REC (DIGITAL IN)
• Abbreviation
SP : Singapore model
RU : Russian model
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