Denon S-301 Service Manual page 51

Block Diagram
1
DVDRFP
2 MUX
DVDRFN
RFSIN 63
2
SIGR b3
INPUT RFCR b7-6
INPUT IMP
SEL
SEL
A
A 12
B
CD_A 16
C
B 11
D
CD_B 15
MUX
C 10
CD_C 14
9
D
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
B2 4 GCA
C2 5 GCA
D2 6 GCA
3
RFCR b2-0
TRCR2 b6-4
CCR b5
APC SEL
DVD/CD
CDR b4
LD H/L
23
DVDPD
24
CDPD
62 61 60 59
AGC
NPUT
ATT
BIAS
4
2
SIGR b7-4
RFCR b5-4
ATT
INPUT IMP SEL
SSOUT
2
CAR b1-0
Env/Clamp
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
@ high gain mode
(CDR b5=1)
4D
SUM
RESUM
+/-4dB
GCA
4
TRCR2 b3-0
3B
Comp.
EQ
PHASE
DETECTOR
EQ
EQ
PHASE
DETECTOR
EQ
VC
3
TRCR b6
DPD COMP HYS ON
DPD EQ
AGCO
Btm Env
Dual APC
MUX
26 22 21 50 32 31
53 52
FCCR b7-0
FBCR b6-0
PROGRAMMABLE
EQUALIZER
FULL WAVE
FILTER
RECTIFIER
DIFFERENTIATOR
AGCO
Clamp
& Env
2 Level
TENV
DAC
CAR b3-2
SIGDET
GCA +/-4dB
4
FOCR b7-4
PIOR b4-0
5
FS Gain
PI offset
70kHz
Offset
LPF
cancel
CTCR b7
BCA DET
CTCR b3-0
CO Gain
TOPHLD
Offset
cancel
TOPHLD
4
CER b4-0
CE offset
+3dB
CFR b2-0
3 LPF
CE-ATT ATT
Pol sel.
CFR b3
buff (Ð12dB)
CEPOL
CDR b5
High Gain
MUX
TRCR2 b7
PDCR b3
CP/CN
CD/DVD
Low lmp
CHR b7-6
Mirr Defect
Comp ATT
MRCR b6-4
MRCR b7-0
Mirr Comp
droop rate
2
ATT Level
control
CTCR b5-4
MEVO SEL
3
ATT
TOP HLD
2
ATT
TOP ENV
MUX
MUX
BTM HLD
Btm clamp
Vref
BTM ENV
& clip
28 29
51
55 54 57
AGC HOLD
RFCR b3
CGR b1
OUTPUT INHIBIT
AGC
CHARGE
PUMP
CCR b4-0
FE offset
5
70kHz +/-6dB, 4bit
Offset
LPF GCA
cancel
4
FOCR b3-0
FO Gain
TOPHLD
COMP
DAC
CBR b3-2
2
Buff
CGR b0
OUTPUT INHIBIT
4
GCA
0-+8dB, 4bit
PI
FE
TE
CE
V25
V125
V25/3
PIOR b7-5
SUB
Offset
LPF GCA
cancel
6 3
CFR b7-5
CEFDB TRCR b5-0
TR Gain
TR offset
for TE, FE & CE output ref
for PI output ref.
V25/3 V25/2
VCI for servo input
VC
CONTROL
Signals
To each block
SERIAL PORT
REGISTER
MUX
V33 for output buff
Offset
CCR b7
CGR b5-4
MUX MUX
DISK DET
Gain
CDR b7
LINKEN
30 33 27 58 19
S-301
HOLDEN
CDR b6
56
BYP
49
RX
40
FE
Pll
38
PI
35
TPH
SEL
34
DFT
2
61
RFDC
CBR b1-0
SEL
2
CAR b7-4
41 CE
TE MASK SEL
42
MNTR
MON
SEL
3
44
LCP
43
LCN
7
CP
8
CN
TE
39
TE
RST
36 V125
CDR b2
37
V25
20
VC
CDR b3
48
SDEN
47
SDATA
46
SCLK
45
V33
51 25