Service manual
CB5
CB1
CB2
CB6
IC13
IC13
IC13
IC13
IC12
IC10
IC1
IC12
IC12
IC12
IC11
IC19
IC19
IC20
IC20
IC14
IC14
IC15
IC15
IC17
IC17
IC16
IC16
IC21
IC21
IC22
IC22
IC3
A
1
2
3
4
5
6
7
8
9
10
BCDEFGH I JK
L MN
CD-S1000
44
★ All voltages are measured with a 10MΩ/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
12.2
0
-12.3
-0.6
0.6
12.2
6.3
12.0
5.1
0
12.2
6.3
5.1
3.4
0
6.3
1.3
1.3
1.3
1.7
1.7
1.7
1.7
1.7
1.4
1.7
0
1.7
1.7
3.4
0
1.7
1.6
1.3
1.6 0
1.7 1.3
0
1.7
1.7 0
01.7
0
0
0
0
0
0
0
0
0
0
0
0
11.9
11.9
6.3
11.9
5.1
6.3
-0.6
0.6
-12.2
0
-0.6
11.8
5.1
3.3
0
6.3
6.3
0
-12.2
0.6
3.4
0
3.4
0
0
1.3
0
1.7
1.7
1.6
0
3.4
3.4
3.4
3.4
12.0
-5.1
0
0
-12.2
-5.1
0
0
0
0
-12.2
0
-12.1
0
-1.0
11.9
12.0
0
0
-12.1
0
0
0
0
0
0
0
0
-12.2
0
0
0
-12.2
0
0
-12.2
0
0
-12.2
0
0
-12.2
0
0
0
12.0
-5.1
0
0
-12.2
-5.1
-0.9
-1.0
11.9
12.0
0
0
0
12.0
-5.1
0
0
-12.2
-5.1
0
-1.0
-12.2
0
0
0
12.0
-5.1
0
0
-12.2
-5.1
0
-1.0
-12.2
0
0
0
0
0
5.1
5.1
2.3
2.3
2.5
0
0
0
0
5.1
0
1.7
1.3
1.7
1.6
0
3.4
3.4
3.4
3.4
5.1
0
0
0
0
5.1
2.3
0
0
0
0
5.1
11.9
11.9
0
0
11.9
-12.2
2.3
2.5
-12.3
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 L
CD IN
1
2
3
4
8
7
6
5
1OUT
1IN–
1IN+
V
CC–
V
CC+
2OUT
2IN–
2IN+
OUT
V
CC–
V
CC+
36 pF
37 pF
14 pF
7 pF
15 Ω
460 Ω
15 Ω
IN+
IN
IC14, 16, 19-22: NE5532DR
Dual low-noise operational amplifiers
IC12, 13: TC74VHC08F
Quad 2-input AND gate
Vcc14
4B13
4A12
4Y11
3B10
3A9
3Y8
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
ABSELECT
1
1A 2
1B 3
1Y 4
2A 5
2B 6
2Y 7
GND 8
Vcc16
ST15
4A14
4B13
4Y12
3A11
3B10
3Y9
ASG
BA
YB
AY
BA
YYB
L
L
H
H
L
H
L
H
AB
L
L
L
H
Y
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
V
DD
V
CC
2L
V
CC
2R
V
CC
1
V
COM
R
V
COM
L
I
REF
I
OUT
L-
I
OUT
L+
I
OUT
R-
I
OUT
R+
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
VR
COM
I
REF
VL
COM
Function
Control
I/F
Zero
Detect
ZEROL
ZEROR
System
Clock
Manager
MSEL
V
CC
2R
V
CC
2L
I
OUT
R+
V
OUT
R
I
OUT
R-
I/V and Filter
Current
Segment
DAC
IC1, 4: PCM1796DBR
Audio stereo digital-to-analog converter
I
OUT
L+
V
OUT
L
I
OUT
L-
I/V and Filter
IC3, 11: PQ033ES3MXP
Low power loss regulator
3
DC input (Vin)
1
DC output (Vo)
2
GND
IC
A
++--
1
OUTPUT A
INVERTING INPUT A
NON-INVERTING
INPUT A
V
-
B
2
3
4
8
V
+
OUTPUT B
INVERTING INPUT B
NON-INVERTING
INPUT B
7
6
5
IC15, 17: LME49723MA
Dual high fidelity audio operational amplifier
PCM/DSD
SELECTOR
D/A
CONVERTER
D/A
CONVERTER
I/V
CONVERTER
DIFFERENTIAL
AMP
BUFFER
AMP
BUFFER
AMP
ANALOG OUT L
ANALOG OUT R
to DIGITAL (1)_CB303
To MODULE board
Page 41
B6
to POWER (1)_CB609
Page 45
J4
to POWER (1)_CB608
Page 45 J2