Sharp CD-BA250 Service Manual page 45

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