Akai DV-R4000VSS

6665
IC403 BU1923F/BU1924F
PLL
57KHz
RDS/ARI
PLL
1187. 5Hz
D
I
P
H
A
S
E
D
E
C
O
D
E
R
D
I
F
F
E
R
E
N
T
A
L
D
E
C
O
D
E
R
8
t
h
s
w
i
t
c
h
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d
c
a
p
a
c
i
t
o
r
f
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l
t
e
r
-
+
A
N
A
L
O
G
P
O
W
E
R
S
U
P
P
L
Y
5
11
12
13
14 10
9
R
E
F
E
R
E
N
C
E
C
L
O
C
K
6
DIGITAL
POWER BUPPLY
MEASAREMENT
CIRCUIT
2
1
a
n
t
i
-
a
l
i
a
s
i
n
g
f
i
l
t
e
r
4
3
7
8
1
6
c
o
m
p
a
r
a
t
o
r
R
C
L
K
Q
U
A
L
R
D
A
T
A
T
1
T
2
X
I
X
O
VSS2
VDD2
VSS1
VDD1
VREF
MUX
V
S
S
3
C
M
P
Interpolator Equalizer
V
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t
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r
b
i
A
l
g
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m
R
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c
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d
d
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T
h
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s
h
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l
d
E
d
g
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f
l
a
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/
p
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W
i
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M
e
a
s
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r
T
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d
D
P
L
L
F
r
e
q
u
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n
c
y
D
e
t
e
c
t
o
r
M
U
X
Defect
Detector
D
e
f
e
c
t
L
o
c
k
D
e
f
e
c
t
P
L
L
r
a
t
e
PLL data EQ data
PLL offset
AGC
ADC data
U2 ZR36708PQC
T
h
e
r
m
a
l
L
i
m
i
t
+
-
+
C
u
r
r
e
n
t
L
i
m
i
t
GND (FIXED OUTPUT)
ADJ. (ADJUSTABLE OUTPUT)
V
I
N
V
O
U
T
S
u
b
s
t
r
a
t
e
U17, U18 LD1117S33C
U19 LD1117S
U10 WM8772EDS
AUDIO
INTERFACE
& DIGITAL FILTERS
STEREO
DAC
STEREO
DAC
STEREO
DAC
STEREO
DAC
L
O
W
P
A
S
S
F
I
L
T
E
R
L
O
W
P
A
S
S
F
I
L
T
E
R
L
O
W
P
A
S
S
F
I
L
T
E
R
CONTROL
I
N
T
E
R
F
A
C
E
-
+
V
O
U
T
1
L
V
O
U
T
1
R
V
O
U
T
2
L
V
O
U
T
2
R
V
O
U
T
3
L
V
O
U
T
3
R
V
R
E
F
N
V
M
I
D
V
R
E
F
P
R
E
F
A
D
C
D
O
U
T
B
C
L
K
L
R
C
D
I
N
1
D
I
N
2
D
I
N
3
M
C
L
K
A
V
D
D
A
G
N
D
AINL
AINR
DVDD
DGND
MUTE
MODE
ML/I2S
MC/IWL
MD/DM
VREFN VREFP
VREFN
IC605 BD3814FV
1
4
0
2
3
9
3
3
8
4
3
7
5
3
6
6
3
5
7
3
4
8
3
3
9
3
2
10
3
1
11
3
0
12
2
9
13
2
8
14
2
7
15
2
6
16
2
5
17
2
4
18
2
3
19
2
2
20
2
1
INP1
INN1
OUT1
AGND1
INP2
INN2
OUT2
AGND2
INSW
AGND3
INSR
AGND4
INSL
AGND5
INC
AGND6
INFR
AGND7
INFL
VEE
-
-
+
+
T
R
E
B
L
E
B
A
S
S
L
O
G
I
C
Ri=20K Ω
Ri=20K Ω
Ri=20K Ω
Ri=20K Ω
Ri=20K Ω
Ri=20K Ω
MASTER
VOLUME
0~-95dB
1dB/step, MUTE
A
G
N
D
1
0
V
C
C
A
G
N
D
9
C
L
D
A
M
U
T
E
D
G
N
D
A
G
N
D
8
O
U
T
S
W
O
U
T
S
R
O
U
T
S
L
O
U
T
C
O
U
T
F
R
O
U
T
F
L
B
N
F
2
L
B
N
F
1
L
B
N
F
2
R
B
N
F
1
R
T
N
F
L
T
N
F
R
IC802, IC803 BA05ST
-
+
VCC
GND
CTL
2
1
3
4
5
REFERENCE
VOLTAGE
C
O
U
T
+
I
/
O
B
u
f
f
e
r
s
a
n
d
D
a
t
a
L
a
t
c
h
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s
Y
-
D
e
c
o
d
e
r
E
E
P
R
O
M
C
e
l
l
A
r
r
a
y
X
-
D
e
c
o
d
e
r
Address
B
u
f
f
e
r
&
L
a
t
c
h
e
s
C
o
n
t
r
o
l
L
o
g
i
c
Memory Address
CE#
OE#
WE#
D
Q
-
D
Q
1
5
0
U5 SST39VF800A
U1 TL3472CD/TK3742
1OUT
1IN-
1
IN+
V /GND
C
C-
V
2
O
U
T
2
I
N
-
2
I
N
+
C
C
+
1
2
3
4
8
7
6
5
U9 TC74HC04AF
1
1
4
2
1
3
3
1
2
4
1
1
5
1
0
6
9
7
8
V
c
c
6
A
6
Y
5
Y
5
Y
4
A
4
Y
GND
3Y
3A
2Y
2A
1Y
1A