Ic Block Diagrams - Sony HCD-WZ8D Service Manual

4-28. IC Block Diagrams

64 63
INPUT
SEL ATT
4
DVDRFP 1
MUX ATT
DVDRFN 2
2
INPUT
IMPEDANCE
SEL
BUFFER
COMPARATOR
A2 3
B2 4
GCA EQ
C2 5
D2 6
3 3
FROM FROM
VC
S-PORT S-PORT
CP 7
CN 8
D
D 9
C
C 10
GCA
B
B 11
A
A 12
FROM
MUX
S-PORT
CD D 13
CD C 14
W/LPF
CD B 15
CD A 16
CD/DVD FROM
S-PORT
GCA
3
FROM
S-PORT
VCI FOR SERVO INPUT
VC = VPB/2
FROM S-PORT
17 18 19 20 21 22
IC001 CXD1881AR (RF Board)
62 61 60 59 58
INPUT
AGC
BIAS
2
INPUT
IMPEDANCE
SEL
+
CLAMP &
ENVELOPE
–
2
LEVEL
SIGDET
DAC
PHASE
– –
DETECTOR
+
+
PHASE
DETECTOR
A+D
+
GCA
+
FROM
+
S-PORT
+
B+C
MUX GCA
3
CD/DVD
B+D
+
+
+
+
SUM
GCA
AMP
+
+
A+C
3
–
+
GCA
4
FROM
S-PORT
APC SEL
DUAL APC
DVD/CD
LD H/L
23 24 25 26 27
57 56 55 54
OUTPUT
FULL WAVE
INHIBIT
RECTIFER
PROGRAMMABLE
FROM S-PORT
EQUALIZER
FILTER
DIFFERENTIATOR
AGCO
+
–
TOPHOLD
–
OFFSET
+ CANSEL
TOPHOLD
FROM
S-PORT
–
OFFSET
GCA LPF
+ CANSEL
4
FROM
S-PORT
OFFSET
GCA LPF SUB GCA
CANSEL
CP/CN
CEFDB FROM
LOW
S-PORT
IMPEDANCE
OFFSET
GCA LPF
CANSEL
5
FROM
S-PORT
BCA
TOP
DET
HOLD
FROM
S-PORT
HYSTERESISTER
& OFFSET
FROM S-PORT
INPUT GAIN
FROM S-PORT
MIRR
COMPARATOR
PEAK/BOTTOM
INTERNAL
HOLD
FDGHG
28 29 30
HCD-WZ8D
53 52 51 50
FAST ATTACK
AGC CHARGE
PUMP
CONTROL
SERIAL
SIGNALS
PORT
TO EACH
REGISTER
BLOCK
V33 FOR
OUTPUT
3
BUFFER
LPF ATT
CE ATT
POL SEL
CEPOL
BUFFER
PI
FE
TE
MNTR
CE
CONTROL
V25
V125
V25/3
GCA GCA
4
GCA GCA
5
TE
GCA GCA
RST
6 3
FROM
S-PORT
FOR SERVO
OUTPUT
HOLDEN
V25/2
SEL
COMPA-
RATOR
–
2
+ GCA SEL
DAC
LINKEN
INPUT
AGCO
IMPEDANCE
2
2
FROM S-PORT
SINK CURRENT
2
FROM S-PORT
INPUT
BUFFER
31
49
AGC
HOLD
48 SDEN
47 SDATA
46 SCLK
45 V33
44 LCP
43 LCN
42 MNTR
41 CE
40 FE
39 TE
38 PI
PH
37 V25
36 V125
35 TPH
34 DFT
33 LINK
BOTTOM
ENVELOPE
PH
MUX
32
55