Denon DCD-1500AE Service Manual page 35

Block Diagram
1
DVDRFP
2 MUX
DVDRFN
RFSIN 63
2
SIGR b3
INPUT RFCR b7-6
SEL INPUT IMP
SEL
A
A 12
B
CD_A 16
C
B 11
D
CD_B 15
MUX
C 10
CD_C
14
D 9
CD_D 13
PDCR b3
CD/DVD
6dB is added
@ high gain mode
(CDR b5=1)
CD_E 18 GCA
CD_F 17 GCA
3
RFCR b2-0
12dB is added
@ high gain mode
(CDR b5=1)
A2 3 GCA
4
B2 GCA
5
C2 GCA
D2 6 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
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
TOPHLD
12dB is added
@ high gain mode
TOPHLD
(CDR b5=1)
4D
SUM
RESUM
+/-4dB
GCA
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
MUX
Dual APC
Btm clamp
MUX
22 21 50 32 31
53 52 55
PROGRAMMABLE
EQUALIZER
FULL WAVE
FILTER
RECTIFIER
DIFFERENTIATOR
AGCO
Clamp
& Env
2
Level
DAC
CAR b3-2
SIGDET
70kHz
LPF
GCA +/-4dB
4
FOCR b7-4
PIOR b4-0
5
FS Gain
PI offset
70kHz
Offset
LPF
cancel
CTCR b7
BCA DET
CBR b3-2
Buff
CTCR b3-0
CO Gain
Offset
cancel
0-+8dB, 4bit
4
CER b4-0
CE offset
+3dB
CFR b2-0 LPF
3
CE-ATT ATT
Pol sel.
CFR b3
buff (Ð12dB)
CEPOL
MUX
LPF
PDCR b3 TRCR2 b7
CD/DVD CP/CN
Low lmp
for PI output ref.
CHR b7-6
Mirr Defect
Comp ATT
MRCR b6-4
CONTROL
MRCR b7-0
Mirr Comp
Signals
droop rate
2
ATT Level
To each block
control
3
ATT
TOP HLD
2
MUX
ATT
TOP ENV
Offset
MUX
BTM HLD
Vref
BTM ENV
& clip
CGR b5-4
MUX
Gain
28 29 30
35
54 57
HOLDEN
AGC HOLD
CDR b6
RFCR b3
CGR b1
OUTPUT INHIBIT
AGC
CHARGE
PUMP
CCR b4-0
FE offset
5
+/-6dB, 4bit
Offset
GCA
cancel
4
FOCR b3-0
Pll
FO Gain
TOPHLD
COMP
SEL
DAC
2
CBR b1-0
CGR b0
OUTPUT INHIBIT
SEL
4
CAR b7-4
GCA
TE MASK SEL
PI
FE
TE
MON
CE
SEL
V25
V125
V25/3
3
PIOR b7-5
SUB
Offset TE
GCA
cancel RST
3
6
CFR b7-5
CEFDB TRCR b5-0
TR offset TR Gain
for TE, FE & CE output ref.
V25/2
V25/3
CDR b2
VCI for servo input
VC
CDR b3
SERIAL PORT
REGISTER
V33 for output buff
CCR b7
MUX
DISK DET
CDR b7
LINKEN
33 27 58 19 51 25
DCD-1500AE
56
BYP
49 RX
40 FE
38 PI
35
TPH
34
DFT
2
61 RFDC
2
41
CE
42
MNTR
44 LCP
43
LCN
7
CP
8
CN
39
TE
36 V125
37
V25
20
VC
48
SDEN
47 SDATA
46
SCLK
45
V33