Pioneer DV-656A-S Service Manual page 88

1
7 LC78652W (DVDM ASSY : IC201)
• Servo DSP IC
A
¶ Block Diagram
FE
TE
TILTE
RF_PH
RF_BH
JITT
B
HFLIO
TES
PP2/EVENT
FG
SLCIST1,2
EFMIN
SLCO1,2
C
EFMOUT
PCKIST1,2
DVDFR
CDFR
PD01-3
JV
DVDSYNC
PCK
LEFM
D
LEFM2
VPDO
VCOC
XIN
XOUT
XTALOUT
ADRAO
CSB
WRB
RDB
E
P0-7
BUSYB
LASER
FBUSYB
PP0-3
F
88
1
2
33
32
8bit
29
MPX
A/D
30
31
28
CMP
51
Track Counter
26
Event Counter
56
FG Counter
55
34,35
39
SLC
36,37
1
87,88
90
91
83-85
PLL
Frame Synchronous
92
Detection, Protection,
96
93
100
97
81
Clock
80
Generator
14
15
8
94
58
Command
60
Interface
59
63-70
73
52
7
53,54
General Purpose Register
,56
2
3
Servo
8bit
Processor
D/A
(16×16+32→32)
CLV
DVD Lock
Detection
Sub Code
Decode
CRC
Insertion EFM
Demodulation
For De-Interleave
16k SRAM
Error Detect
Correction
C1-Twofold,
C2-Fourfold
Supplement/Mute
Serial Out
D Attenuate
Deemphasis Filter
DV-656A-S
3
4
FDO
47
TDO
48
SLDO
45
46 SPDO
TBAL
44
TILTDO
43
42 AUXO
24 DRF
FAST
22
DVDSYEQ
95
V_PB
23
FSEQ
21
77 WRQ
SQOUT
74
CQCKB
75
76 RWC
EMPH
17
PW
12
SBCK
10
SBSY
18
11 SFSY
FSX
9
EFLG
20
LRSY
5
ROMCK
4
ROMXA
3
2 C2F
DOUT DOUT
19
25,27
TEST1-4
38,50
57 RESB
4