Bd Section - Sony MDS-JE520 Service Manual

6-2. BLOCK DIAGRAMS
– BD SECTION –
HR901
• Signal path
OVER WRITE
HEAD
: PB
: REC
: PB (Digital out)
: REC (Digital in)
OPTICAL PICK-UP BLOCK
(KMS-260A/J1N)
DETECTOR
F
I C B J
D
A
E
VC
VC
D101
LASER ON
SW
PD
Q101
ILCC
LD
HF
MODULE
IC103,Q102-104
TRACKING
COIL
FOCUS
TRK–
COIL 10
TRK+
12
FSC+
21
FSC–
23
SLED+
M102
M 27
SLED MOTOR SLED–
25
SPDL+
M101 M
6
SPDL–
SPINDLE MOTOR
8
09
OVER WRITE HEAD DRIVE
IC181
9
•
8
12
HEAD •
10
11
DRIVE
•
3
Q181,182
13
4
6
5
RF AMP
IC101
48 47 46 40
RF
RF AGC & EQ 38
I
1
J RF AMP BPF P-P AUX
2 33
BOTM
PEAK
36
&
PEAK
37
BOTTOM
A ABCD
ABCD
4 35
AMP
B
5
IV AMP
C
6
D FOCUS
7 FE
ERROR
34
E
8 AMP
F IV AMP ADAGC
9 31
AT
BPF 29
AMP
E-F
ADFM
BALANCE
ADIN
30
VCC
VC ADFG
3 CVB 32
TEMPR
15
TE
TRACKING
26
ERROR
SE
28
AMP
TEMPI TEMP
14
AMP
CSLED
27
PD
10 SWDT
SERIAL
16
SCLK
17
VICONV PARALLEL
XLAT
DECODER 18
FOCNT
20
11
12 22 23 25
APC
Q162,163
HF MODULE
SW
SLED/SPINDLE MOTOR DRIVE
FOCUS/TRACKING COIL DRIVE
IC152
TFDR
14
DRIVER
TRDR
15
FRDR
18
DRIVER
FFDR
19
SFDR
29
DRIVER
SRDR
30
SPFD
3
DRIVER SPRD
4
XRST
PSB 16
– 45 –
DIGITAL SERVO SIGNAL PROCESSOR, DIGITAL SIGNAL PROCESSOR
EFM/ACIRC ENCODER/DECODER, SHOCK-PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER
IC121
EFMO
1
100
2
EFM,
ACIRC,
PCO
59
ENCODER/
FILI
60
DECODER
FILO PLL
61
CLTV
62
RFI
57
AUX1
67
BOTM
64
PEAK
63
ANALOG
ABCD
MUX
65
FE
66
VC
VC 68
VC
TE
75
SE
74
ADIP
ADFG
78 DEMODULATOR/
DECODER
SPINDLE
SERVO
VC
DTRF
82
CKRF
81
XLRF
80
FOCNT
79
93 13
94 95 10
15 14
DIN0
19
DIN1
20
ADDT
25
SHOCK
ATRAC DIGITAL
RESISTANT
ENCODER/ AUDIO
MEMORY
DECODER I/F
CONTROLLER
DADT
26
DOUT
21
XBCK
28
LRCK
27
CLOCK
SAMPLING GENERATOR
OSCI
16
RATE
CONVERTER
SQSY
11
SUBCODE
DQSY
PROCESSOR 12
MNT3
4
MNT2
3
MONITOR
MNT1
CONTROL 2
MNT0
1
A/D
CONVERTER
SENS
9
SRDT
8
SCLK
CPU
6
I/F
SWDT
SERVO
APC 5
DSP
XLAT
7
3
PWM AUTO
SEQUENCER
GENERATOR
XWE
20 47
XRAS
46
XCAS
44
XOE
43
D0 D3 A00 A09
83 88 89 86 85 92 91
49 • 48 • 50 • 51 34 31 • 36 40 • 45
SDA
EEP ROM
IC171
SCL
DETECT SW
S101, S102,
S601-604
M103
M
LOADING MOTOR
– 46 –
MDS-JE520
SCTX
XINT
DIN0
DIN1
ADDT
DADT
DOUT
BCK
LRCK
7 3
512FS
BUFFER
IC123
SQSY
DQSY
MNT3
MNT2
MNT1
MNT0
SENS
SRDT
SCLK
SWDT
MAIN
XLAT
SECTION
DRAM
IC124
3
XWE
4
XRAS
17 XCAS
16
XOE
1
DQ1
•
2
•
18
•
DQ4
19
6 A0
9
•
11
15
•
5 A9
LDON
WRPWR
MOD
5 SDA
6 SCL
LIMIT
REFLECT
PROTECT
CHUCK IN
PACK OUT
PB P
REC P
LOAD-IN
LOAD-OUT
XRST