CB5
CB1
CB2
CB6
IC13
IC13
IC13
IC13
IC12
IC10
IC1
IC12
IC12
IC12
IC11
IC19
IC19
IC20
IC20
IC14
IC14
IC15
IC15
IC18
IC18
IC17
IC17
IC16
IC16
IC5
IC5
IC21
IC21
IC22
IC22
IC3
A
1
2
3
4
5
6
7
8
9
10
B
C
D
E
F
G
H
I
J
K
L
M
N
CD-S2000
44
★
All voltages are measured with a 10M
Ω
/V DC electronic voltmeter.
★
Components having special characteristics are marked
s
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
AUDIO
12.4
0
-12.4
0.6
0.6
12.4
6.3
12.5
5.1
0
12.5
6.3
5.1
3.3
0
6.3
1.3
1.3
1.3
1.6
1.6
1.5
1.7
1.7
1.7
1.7
0
1.7
1.7
3.3
0
1.7
1.3
1.5
0
1.7
1.3
0
1.7
1.7
0
0
1.7
0
0
0
0
0
0
0
0
0
0
0
0
12.5
12.5
6.3
12.5
5.2
6.3
0.6
-0.6
-12.4
0
0
12.5
5.2
3.3
0
6.3
6.3
0
-12.4
-0.6
3.3
0
3.3
0
0
1.3
0
1.7
1.5
0
3.3
3.3
3.3
3.3
3.3
12.5
4.8
0
0
-12.4
-4.8
-0.9
0
0
0
-12.3
0
-12.3
0
0
0
-0.9
12.5
12.5
0
0.1
0
-12.3
0
0
0.1
0
-12.3
0.1
0
-12.2
0.1
0
-12.2
0.1
0
-12.2
0.1
0
0
0
0
0
0
0
0
-12.4
-12.4
0
0
0
0
0
0
0
0
0
0
-12.3
0
0
-12.3
0
0
-12.3
0
0
-12.3
0
0
-12.3
0
0
-12.2
0
0
-12.2
0
0
-12.2
0
0
-12.2
0
0
-12.2
0
0
-12.2
0
0
-12.4
0
0
0
12.5
-4.8
0
0
-12.5
-4.8
-0.9
-0.9
12.5
12.5
0
0
0
12.5
-4.8
0
0
-12.4
-4.8
-0.9
-0.9
-12.4
0
0
0
12.5
-4.7
0
0
-12.4
-4.7
-0.8
-0.9
-12.4
0
0
0
0
0
5.1
5.1
2.4
2.4
0
0
0
0
5.1
0
1.7
1.3
1.7
1.5
0
3.2
3.3
3.3
3.3
3.3
5.1
0
0
0
0
5.1
2.4
0
0
0
0
5.1
12.4
12.4
0
0
12.4
-12.2
2.4
-12.4
0
3
1
2
6
4
5
8
9
10
11
12
13
3
1
2
6
4
5
8
9
10
11
12
13
OUT +
OUT L
CD IN
OUT -
UU26847
470/50
UU26847
470/50
UU26747
47/50
WN44060
470/50
WN44880
1P10K
WN44880
1P10K
HL00710
1/2P10K
WN44060
470/50
UU26847
470/50
PCM/DSD
SELECTOR
D/A
CONVERTER
D/A
CONVERTER
I/V
CONVERTER
DIFFERENTIAL
AMP
BUFFER
AMP
ANALOG OUT L
BALANCED OUT L
ANALOG OUT R
BALANCED OUT R
1
2
3
4
8
7
6
5
1OUT
1IN–
1IN+
VCC–
VCC+
2OUT
2IN–
2IN+
OUT
VCC–
VCC+
36 pF
37 pF
14 pF
7 pF
15
Ω
460
Ω
15
Ω
IN+
IN
IC5, 14-22
: NE5532DR
Dual low-noise operational amplifiers
IC19-22
: OP275GSR
Dual bipolar/JFET, audio operational amplifier
OUT A
-IN A
V-
V+
OUT B
1
2
3
4
5
+IN A
-IN B
+IN B
6
7
8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
ZEROL
ZEROR
MSEL
LRCK
DATA
BCK
SCK
MS
MDI
MC
MDO
RST
DGND
VDD
VCC2L
VCC2R
VCC1
VCOMR
VCOML
IREF
IOUTL-
IOUTL+
IOUTR-
IOUTR+
AGND3L
AGND3R
AGND2
AGND1
Power Supply
RST
SCK
Advanced
Segment
DAC
Modulator
Bias
and
Vref
V
DD
AGND3R
AGND3L
V
CC
1
AGND1
AGND2
x8
Oversampling
Digital
Filter
and
Function
Control
Audio
Data Input
I/F
LRCK
BCK
DATA
MDO
MDI
MC
MS
DGND
Current
Segment
DAC
V
R
COM
I REF
V
L
COM
Function
Control
I/F
Zero
Detect
ZEROL
ZEROR
System
Clock
Manager
MSEL
V
CC
2R
V
CC
2L
I OUTR+
VOUTR
I OUTR-
I/V and Filter
Current
Segment
DAC
IC1, 4
: PCM1792ADBR
Audio stereo digital-to-analog converter
I OUTL+
VOUTL
I OUTL-
I/V and Filter
IC12, 13
: TC74VHC08F
Quad 2-input AND gate
Vcc
14
4B
13
4A
12
4Y
11
3B
10
3A
9
3Y
8
1A
1
1B
2
1Y
3
2A
4
2B
5
2Y
6
GND
7
IC10
: TC74VHC157F
Quad 2-channel multiplexer
SELECT
Inputs
X: Don't care
Output
ST
H
L
L
L
L
X
L
L
H
H
X
L
H
X
X
X
X
X
L
H
L
L
H
L
H
A
B
SELECT
1
1A 2
1B 3
1Y 4
2A 5
2B 6
2Y 7
GND 8
Vcc
16
ST
15
4A
14
4B
13
4Y
12
3A
11
3B
10
3Y
9
A S G
B
A
Y
B
A
Y
B
A
Y Y B
L
L
H
H
L
H
L
H
A
B
L
L
L
H
Y
to DIGITAL (1)_CB303
To Module board
Page 41
B6
to POWER (1)_CB609
Page 45
I4
to POWER (1)_CB608
Page 45
I2
