Sharp CD-BA250H Service Manual page 40

IC1 VHiLC78645E-1: CD Servo (LC78645E)
80
SLC0 1
SLCIST 2
EFMIN 3
RF
4
5
RFVDD
RFVSS 6
FIN1 7
FIN2 8
9
TIN1
TIN2 10
11
VREF
12
REFI
FE 13
14
TEC
15
TE
RFMON 16
17
JITTC
18
ADAVDD
19
ADAVSS
20
TD0
21
FIN1
FIN2
TIN1
TIN2
REF1
DETECT
ADIN
ADAVDD
ADAVSS
JITTC
SLC0
EFMIN
SLCIST
PCK
PDO1
PDO2
FR
PCKIST
VVDD
VVSS
SBCK/FG
XIN
XOUT
16MOUT
XVDD
XVSS
*RES
*WRQ
CL
CE
DO
VDD5V
CONT1, 2, 3
CONT4, 5
SBCK/CONT6
TEST
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79 78 77 76 75 74 73 72 71 70
LC78645E
22 23 24 25 26 27 28 29 30 31
+
–
MIX AGC EQ
+
–
+
– LPF
LPF
+
+
TBAL
– –
LPF
+
TBAL
–
LEVEL SET
RAM
SERVO PROCESSOR
A/D
AUTO ADJUST
JITTER
SW
DETECT
SLICE LEVEL
CONTROL
RUPTURE DEFECT
PLL
VCEC
DETECT,PROTECT INSERT,
CLV,CAV
CONTROL
SUBCODE DECODE CRC
CLOCK
MONITOR SIGNAL SELECTOR
GENERATOR
ERROR
CORRECTION
COMMAND
DI
AUDIO CD
INTERFACE
GENERAL-PURPOSE
INTERPOLATION
PORTS
MUTE
8FS ATTENUATION
DIGITAL FILTER DEEMPHSIS
1bit DAC
LPF
Figure 47 BLOCK DIAGRAM OF IC
69 68 67 66 65 64 63 62 61
32 33 34 35 36 37 38 39 40
RFVDD
RFVSS
PH
BH
SW
+
–
+ +
–
–
MONI
–
RFMON
CONT
+
VREF
TRACK JUMP
LDD
APC
LDS
FD0
D/A
TD0
S/H
SLD0
SPD0
DRF
GPDAC
DRF
VDD
FRAME SYNC
FSEQ
EFN DECODE
V/*P
VDD
VSS
MONI1~5
RAM
FSK/16MIN
C2F
EFLG
AUDIO OUT
DOUT
LRSY
SERIAL
DATACK
OUT
DATA
ASLRCK
EXTERNAL
ASDQCK
AUDIO IN
ASDFIN
– 47 –
CD-BA250H/CD-BA2600H
60 DATA
59 DATACK
58 LRSY
ASDFIN
57
56
ASDACK
55 ASLRCK
54 16MOUT
53 EFLG
52
C2F
51 XVSS
50
FSX/16MIN
49
XIN
48 XOUT
47
XVDD
46
RVDD
45 RCH0
44
RVSS
43
LVSS
42
LCHO
41
LVDD