Block Diagrams; Bd Section - Sony MDS-PC1 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
TRAKING
COIL
FOCUS
TRK–
COIL 10
TRK+
12
FSC+
21
FSC–
23
SLED+
M902 M
27
SLED MOTOR SLED–
25
SPDL+
M901 M
6
SPDL–
SPINDLE MOTOR
8
09
OVER WRITE HEAD DRIVE
IC181
11
3
HEAD
14
DRIVE 18
Q181,182 15
9
17
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
FOCUS
D
FE
7
ERROR
34
E
8
AMP
F IV AMP VC
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
SWDT
10
SERIAL
16
SCLK
17
VICONV
PARALLEL
XLAT
DECODER 18
FOCNT
20
11 12 22 23 25
APC
IC122
Q162,163
1
4
2
HF MODULE
SW
SLED/SPINDLE MOTOR DRIVE
FOCUS/TRACKING COIL DRIVE
IC152
TFDR
85
DRIVER
TRDR
86
FRDR
89
DRIVER FFDR
88
SFDR
92
DRIVER
SRDR
91
SPFD
94
DRIVER SPRD
93
XRST
PSB 16
– 45 –
DIGITAL SERVO SIGNAL PROCESSOR, DIGITAL SIGNAL PROCESSOR
EFM/ACIRC ENCODER/DECODER, SHOCK-PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER, 2M-BIT DRAM
IC121
1
18
Q180
EFMO
2
100
EFM,
ACIRC,
PCO
58
ENCODER/
FILI
59 DECODER
FILO PLL
60
CLTV
61
RFI
55
AUX1
66
BOTM
63
PEAK
62
ANALOG
ABCD
MUX
64
EE
65
VC
VC 67
VC
TE
74
SE
73
ADIP
ADFG
78 DEMODULATOR/
DECODER
SPINDLE
SERVO
VC
DTRF
82
CKRF
81
XLRF
80
FOCNT
79
93 94 95 10 13
15 14
DIN
21
ADDT
23
SHOCK
ATRAC DIGITAL
RESISTANT
ENCODER/ AUDIO
MEMORY
DECODER
I/F
CONTROLLER
DADT
24
DOUT
22
XBCK
26
LRCK
25
CLOCK
SAMPLING GENERATOR
OSCI
16
RATE
CONVERTER
SQSY
11
SUBCODE
DQSY
PROCESSOR
12
MNT3
4
MNT2
MONITOR 3
MNT1
2
MNT0
CONTROL
1
A/D
CONVERTER
SENS
9
SRDT
8
SCLK
CPU
6
I/F
SWDT
SERVO
5
APC
DSP
XLAT
7
3
PWM AUTO
SEQUENCER
GENERATOR
XWE
20 45
XRAS
44
XCAS
42
XOE
41
D0 D3 A0 A9
83 88 89 86 85 92 91 47 • 46 • 48 • 49
32 29 • 34 38 • 43
SDA
EEP ROM
IC171
SCL
DETECT SW
S681 - 683,
S685 - 688
M903
M
LOADING MOTOR
– 46 –
MDS-PC1
SCTX
XINT
DIN
ADDT
DADT
DOUT
BCK
LRCK
1 5
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
CHACK IN
PACK OUT
PB P
REC P
LOAD-IN
LOAD-OUT
XRST