Denon S-301 Service Manual page 51

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Block Diagram
1
DVDRFP
2
DVDRFN MUX
RFSIN 63
SIGR b3
INPUT
SEL
A 12
CD_A 16
B 11
CD_B 15
MUX
C 10
CD_C 14
9
D
CD_D 13
PDCR b3
CD/DVD
TE
L 13942296513
6dB is added
@ high gain mode
CD_E 18
CD_F
17
RFCR b2-0
12dB is added
@ high gain mode
A2 3
B2 4
C2 5
D2 6
RFCR b2-0
CDR b4
LD H/L
23
DVDPD
www
24
CDPD
.
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INPUT
ATT
BIAS
4
SIGR b7-4
2 RFCR b5-4
ATT
INPUT IMP SEL
RFCR b7-6
SSOUT
INPUT IMP
SEL
CAR b1-0
Env/Clamp
B+D
A W/LPF
GCA
SUM
Amp.
B W/LPF
GCA
A+C
W/LPF
C
GCA
D 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
(CDR b5=1)
GCA
+/-4dB
GCA
GCA
3
4
TRCR2 b3-0
3B
(CDR b5=1)
Comp.
GCA EQ
PHASE
DETECTOR
GCA EQ
GCA EQ
PHASE
DETECTOR
GCA EQ
VC
3
3
TRCR b6
TRCR2 b6-4 DPD COMP HYS ON
DPD EQ
CCR b5
AGCO
APC SEL
DVD/CD
Btm Env
Dual APC
MUX
x ao
y
i
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FCCR b7-0
FBCR b6-0
AGC
PROGRAMMABLE
EQUALIZER
FILTER
DIFFERENTIATOR
2
AGCO
Clamp
& Env
2
2
Level
TENV
DAC
CAR b3-2
SIGDET
GCA +/-4dB
4
FOCR b7-4
5
FS Gain
70kHz
Offset
LPF
cancel
TOPHLD
Offset
cancel
TOPHLD
Q Q
3 6 7 1 3
4
CER b4-0
CE offset
+3dB
CFR b2-0
3
CE-ATT
CFR b3
CEPOL
CDR b5
High Gain
MUX
PDCR b3
CD/DVD
CHR b7-6
Mirr Defect
Comp ATT
MRCR b6-4
MRCR b7-0
Mirr Comp
droop rate
ATT Level
control
CTCR b5-4
MEVO SEL
3
ATT
TOP HLD
2
ATT
TOP ENV
MUX
MUX
BTM HLD
Btm clamp
Vref
u163
& clip BTM ENV
.
31 28 29
51
2 9 9 4 2 8
55 54 57
AGC HOLD
RFCR b3
CGR b1
OUTPUT INHIBIT
AGC
FULL WAVE
CHARGE
RECTIFIER
PUMP
CCR b4-0
FE offset
5
70kHz +/-6dB, 4bit
Offset
LPF GCA
cancel
PIOR b4-0
4
PI offset
FOCR b3-0
FO Gain
CTCR b7
TOPHLD
COMP
BCA DET
CBR b3-2 DAC
2
Buff
CGR b0
OUTPUT INHIBIT
CTCR b3-0
4
CO Gain
GCA
0-+8dB, 4bit
1 5 0 5 8 2 9 9 4
PI
FE
TE
CE
V25
V125
V25/3
PIOR b7-5
LPF
ATT
Pol sel.
buff (Ð12dB)
SUB
Offset
LPF GCA
cancel
6 3
CFR b7-5
TRCR2 b7 CEFDB TRCR b5-0
CP/CN TR offset TR Gain
Low lmp
for TE, FE & CE output ref.
for PI output ref.
V25/2
V25/3
VCI for servo input
VC
CONTROL
Signals
2
To each block
SERIAL PORT
REGISTER
MUX
V33 for output buff
Offset
m
co
CCR b7
CGR b5-4
MUX MUX
DISK DET
Gain
CDR b7
LINKEN
30 33 27 58 19
S-301
9 9
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
2 8 9 9
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