Onkyo DV-CP702 Service Manual page 46

IC BLOCK DIAGRAM/ TERMINAL DESCRIPTION
Q1001 : CXD1881BR DVD ANALOG FRONTEND-2
1
DVDRFP
DVDRFN
2 MUX
AFSIN 63
2
SIGR b3
RFCR b7-6
INPUT
SEL INPUT IMP
SEL
A
12
A
B
16
CD_A
C
11
B
D
CD_B
15
MUX
10
C
CD_C 14
D
9
CD_D
13
PDCR b3
CD/DVD
6dB is added
@ high gain mode
(CDR b5-1)
18
CD_E GCA
CD_F
17
GCA
3
RFCR b2-0
12dB is added
@ high gain mode
(CDR b5=1)
A2
2
GCA
B2
4
GCA
5
C2
GCA
6
D2 GCA
3
RFCR b2-0
TRCR2 b6-4
DPD EQ
CCR b5
APC SEL
DVD/CD
CDR b4
LD H/L
23
DVDPD
24
CDPD
26
62 61 60 59
FCCR b7-0
FBCR b6-0
AGC
INPUT
ATT
BIAS
4
2
SIGR b7-4
RFCR b5-4
ATT
INPUT IMP SEL
SSOUT
+
Clamp
- & Env
2
CAR b1-0
Env/Clamp
TENV
B+D
W/LPF
GCA
SUM
W/LPF
Amp.
GCA
A+C
W/LPF
GCA
W/LPF
GCA
SIGR b2-0
12dB is added
@ high gain mode
(CDR b5=1)
GCA
A+D
GCA
GCA
B+C
GCA
3
SIGR b2-0
12dB is added TOPHLD
@ high gain mode
TOPHLD
(CDR b5-1)
4D
SUM
RESUM
+3dB
+/-4dB
4
CDR b5
TRCR2 b3-0
High Gain
3B
Comp.
EQ
PHASE
DETECTOR
EQ
EQ
PHASE
DETECTOR
EQ
VC
3
TRCR b6
DPD COMP HYS ON
AGCO
CTCR b5-4
MEVO SEL
Btm Env
2
Dual APC MUX
Btm Clamp
MUX
& clip
22 21 32 31
50
53 52 55 54
OUTPUT INHIBIT
PROGRAMMABLE
EQUALIZER FULL WAVE
RECTIFIER
DIFFERENTIATOR
AGCO
2
Level
DAC
CCR b4-0
CAR b3-2
FE offset
SIGDET
70kHz
LPF
GCA+/-4dB
4
FOCR b7-4
5
FS Gain
70kHz
Offset
LPF
cancel
CTCR b7
TOPHLD
BCA DET
CBR b3-2
CGR b0
OUTPUT INHIBIT
CTCR b3-0
4
CO Gain
Offset
GCA
cancel
0-+8dB, 4bit
4
CER b4-0
CE offset
LPF
CFR b2-0
3
ATT
CE-ATT
Pol sel.
CFR b3
buff (-12dB)
CEPOL
MUX
SUB
LPF
PDCR b3 CEFDB
TRCR2 b7
CD/DVD
CP/CN
Low imp
for PI output ref.
CHR b7-6
Mirr Defect
Comp ATT
MRCR b6-4
CONTROL
MRCR b7-0
Mirr Comp
Signal
drop rate 2
ATT Level
To each block
control
3
ATT
TOP HLD
MUX
ATT
TOP ENV
Offset
MUX
TOP HLD
Vref
TOP ENV
CGR b5-4
MUX
Gain CDR b7
LINKEN
28 29 30
57
HOLDEN
AGC HOLD
CDR b6
RFCR b3
CGR b1
AGC
CHARGE
PUMP
56
BYP
49
RC
5
+/-6dB, 4bit
Offset
40
FE
GCA
cancel
4
FOCR b3-0
Pll
FO Gain
38
PI
35
TPH
COMP
SEL 34
DFT
DAC
2
2
61
RFDC
CBR b1-0
SEL
2
CAR b7-4
41
CE
TE MASK SEL
PI
FE 42
MNTR
TE
MON
CE
SEL
V25
V125
V25/3
3
PIOR b7-5
44 LCP
43 LCN
7 CP
8 CN
Offset
TE
GCA 39
TE
cancel
RST
3
6
CFR b7-5
TRCR b5-0
TR Gain
TT offset
for TE, FE & CE output ref
V25/3 V25/2
36 V125
CDR b2
37
V25
VCI for servo input
VC 20
VC
CDR b3
48 SDEN
SERIAL POET
47
SDATA
REGISTER
46
SCLK
V33 for output buff
45 V33
CCR b7
MUX
DISK DET
33 27 58 19 51 25
DV-CP702