Sharp CD-BA250 Service Manual page 45

IC1 VHiLC78645E-1: CD Servo (LC78645E)
SLC0 1
SLCIST
2
EFMIN 3
RF
4
RFVDD 5
RFVSS 6
FIN1 7
FIN2 8
9
TIN1
10
TIN2
11
VREF
12
REFI
13
FE
14
TEC
15
TE
RFMON 16
17
JITTC
18
ADAVDD
ADAVSS 19
20
TD0
CONT1, 2, 3
SBCK/CONT6
80 79 78 77 76 75 74 73
21 22 23 24 25 26 27 28
+
FIN1
–
MIX
+
–
FIN2 +
LPF
–
TIN1 +
+
TBAL
–
–
+
TIN2
TBAL
–
LEVEL SET
REF1
RAM
DETECT
SERVO PROCESSOR
A/D
ADIN
ADAVDD
ADAVSS
JITTER
JITTC
DETECT
SLC0
SLICE LEVEL
EFMIN
CONTROL
SLCIST
PCK
PDO1
PDO2
PLL
FR
PCKIST VCEC
VVDD
CLV,CAV
VVSS
CONTROL
SBCK/FG
XIN
XOUT
CLOCK
16MOUT
XVDD
GENERATOR
XVSS
*RES
*WRQ
CL
CORRECTION
COMMAND
CE
DI
INTERFACE
DO
VDD5V
GENERAL-PURPOSE
INTERPOLATION
CONT4, 5 PORTS
8FS ATTENUATION
DIGITAL FILTER
1bit DAC
TEST
Figure 45 BLOCK DIAGRAM OF IC
72 71 70 69 68 67 66 65 64
LC78645E
29 30 31 32 33 34 35 36 37
AGC EQ PH
BH
LPF SW
+
–
LPF + +
–
–
MONI
–
+ CONT
TRACK JUMP
APC
AUTO ADJUST
SW D/A
S/H
DRF
VDD
RUPTURE DEFECT
FRAME SYNC
DETECT,PROTECT INSERT,
EFN DECODE
SUBCODE DECODE CRC
MONITOR SIGNAL SELECTOR
RAM
ERROR
AUDIO CD
AUDIO OUT
SERIAL
MUTE
OUT
DEEMPHSIS
EXTERNAL
LPF
AUDIO IN
– 45 –
CD-BA250/CD-BA2600
63 62 61
60 DATA
DATACK
59
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 LCH0
41
LVDD
38 39 40
RFVDD
RFVSS
RFMON
VREF
LDD
LDS
FD0
TD0
SLD0
SPD0
GPDAC
DRF
FSEQ
V/*P
VDD
VSS
MONI1~5
FSK/16MIN
C2F
EFLG
DOUT
LRSY
DATACK
DATA
ASLRCK
ASDQCK
ASDFIN