Sharp CD-BA3100H Service Manual page 56

CD-BA3100H
IC1 VHiLC78645E-1: CD Servo (LC78645E)
SLCO 1
SLCIST 2
EFMIN 3
RF
4
RFVDD 5
RFVSS 6
7
FIN1 A
FIN2 B 8
9
TIN1 E
10
TIN2 F
11
VREF
12
REFI
13
FE
TEC 14
15
TE
16
RFMON
17
JITTC
18
ADAVDD
19
ADAVSS
20
TDO
SBCK/CONT6
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80 79 78 77 76 75 74 73 72 71
LC78645E
21 22 23 24 25 26 27 28 29 30
FIN1 A +
–
MIX AGC
+
–
FIN2 B +
LPF
–
+
TIN1 E +
TBAL
–
–
TIN2 F +
TBAL
–
LEVEL SET
REFI
RAM
DETECT
SERVO PROCESSOR
A/D
ADIN
ADAVDD
ADAVSS
JITTER
JITTC
DETECT
SLCO
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
ERROR
*WRQ
CL
CORRECTION
COMMAND
CE
DI
AUDIO CD
INTERFACE
DO
VDD5V
GENERAL-PURPOSE
CONT1, 2, 3
INTERPOLATION
CONT4, 5
PORTS
MUTE
8FS
ATTENUATION
DEEMPHSIS
DIGITAL FILTER
1bit DAC
TEST
Figure 56 BLOCK DIAGRAM OF IC
70 69 68 67 66 65 64 63 62
31 32 33 34 35 36 37 38 39
RFVDD
RFVSS
EQ PH
BH
LPF SW
+
–
LPF + +
– –
MONI
–
RFMON
+ CONT
VREF
TRACK JUMP
LDD
APC
LDS
AUTO ADJUST
FD0
SW
D/A
TD0
S/H
SLD0
SPD0
DRF
GPDAC
DRF
VDD
RUPTURE DEFECT
FRAME SYNC
FSEQ
DETECT,PROTECT INSERT,
EFN DECODE
V/*P
SUBCODE DECODE CRC VDD
VSS
MONITOR SIGNAL SELECTOR
MONI1~5
RAM
FSK/16MIN
C2F
EFLG
AUDIO OUT
DOUT
LRSY
SERIAL
DATACK
OUT
DATA
ASLRCK
EXTERNAL
ASDQCK
LPF
AUDIO IN
ASDFIN
– 56 –
61
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
40