Yamaha CD-S1000 Service Manual page 44

A B C
CD-S1000
AUDIO
1
12.2
12.2
-0.6
CB5
0
2
Page 45 J2
to POWER (1)_CB608
0
0.6
-12.3
-12.3
3
To MODULE board
4
CB1
5
Page 41 B6
6
to DIGITAL (1)_CB303
CB2
7
11.9
11.9
-0.6
-0.6
0
CB6
Page 45 J4
8 to POWER (1)_CB609
0
0.6
0.6
-12.2
-12.2
9
10
# 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.
44
D E F
12.2 5.1
IC11
12.0
5.1 3.4
6.3
6.3 0
6.3
0
0
CD IN 1.7
1.3
1.7
1.6
0
3.4
3.4
3.4
3.4
IC12
1 1.3 5.1
1.3
3.4
3
2 1.3
D/A
IC12
4 1.7
CONVERTER
1.7
6
5 1.7
IC12
1.7
9
1.4
8
10
1.7
0 3.4
IC12
12 1.7
1.7 1.6 0
11
13
1.7 1.7 1.3
0 1.6 0
1.7 1.3
0 1.7
3.4
1.7 0
IC13
1 0
0 0 1.7
3
2 0
IC13
4 0
0
6
5
0
IC13
9 0 0
8
10 0
PCM/DSD
IC13
12 0 SELECTOR
11
13 0
0
0
1.7
1.3
1.7
1.6
0
3.4
3.4
3.4
3.4 5.1
D/A
CONVERTER
5.1
11.9
IC3
11.8
6.3
5.1 3.3
6.3
0 11.9
6.3
6.3
11.9
11.9
-12.2
0
0
G H I
0 12.0
0
-5.1
IC19 11.9
0
0
IC14
-1.0
5.1
0
0
0
-5.1
IC19
0 0
0
-12.2
5.1
2.3
2.3
2.5
0
0
0
0
0
12.0
-5.1 0
IC20
0
0
IC14
-1.0
-12.2
0
-5.1
IC20
0
-12.2
I/V
CONVERTER
0
12.0
-0.9
-5.1
11.9
IC21
0 0
IC16
-1.0
5.1
0
0
-5.1
IC21
0
0
-12.2
0
0
5.1
2.3
2.3
2.5
0
0
0
0
12.0
0
-5.1 0
IC22
0
IC16 0
-1.0
-12.2
0
-5.1
IC22
0
-12.2
DIFFERENTIAL
AMP
J K L
BUFFER
AMP
12.0
OUT L
0
0
0 IC15
0
0 IC15
0
-12.2
-12.2 0 -12.2 0
0 0
0
-12.1
0
BUFFER
AMP
12.0
0
0
IC17
0
IC17
0 0 0
-12.2
-12.2 -12.2 0
0
0
0
-12.1
0
0
IC1, 4: PCM1796DBR
Audio stereo digital-to-analog converter
I OUTL-
LRCK
Audio
BCK Current
VOUTL
Data Input
Segment
DATA I/F
DAC
I OUTL+
x8 I/V and Filter
RST
V COM L
Oversampling
Advanced
Digital Bias
Segment I REF
Filter and
DAC
MDO and Vref ZEROL 1
V COM R
Modulator ZEROR 2
Function
MDI MSEL 3
Control
MC LRCK 4
I OUTR- DATA 5
MS BCK
6
Function
Current VOUTR SCK 7
Control Segment DGND 8
I/F DAC VDD
9
MSEL
I OUTR+ MS 10
MDI 11
MC 12
I/V and Filter
MDO 13
ZEROL System
14
Zero RST
ZEROR Clock Power Supply
Detect
Manager
M N
ANALOG OUT L
IC3, 11: PQ033ES3MXP
Low power loss regulator
DC input (Vin) 3 1 DC output (Vo)
IC
2
GND
IC10: TC74VHC157F
ANALOG OUT R Quad 2-channel multiplexer
SELECT 1 16 Vcc
1A 2 A S G 15 ST
Inputs
1B 3 B A 14 4A Output
ST SELECT A B
1Y 4 13 4B
Y B
H X X X L
2A 5 A Y 12 4Y
L L L X L
2B 6 B A 11 3A L L H X H
2Y 7 10 3B L H X L L
Y Y B
L H X H H
GND 8 9 3Y
X: Don't care
IC12, 13: TC74VHC08F
Quad 2-input AND gate
1A 1 14 Vcc
1B 2 13 4B
1Y 3 12 4A
2A 4 11 4Y
A B Y
2B 5 10 3B
L L L
2Y 6 9 3A
L H L
GND 7 8 3Y H L L
H H H
IC14, 16, 19-22: NE5532DR
Dual low-noise operational amplifiers
VCC+
36 pF
IN+
37 pF
14 pF
15 Ω
OUT
7 pF
IN
15 Ω
V
1OUT 1 8 CC+
1IN– 2 7 2OUT
460 Ω
1IN+ 3 6 2IN–
2IN+
V 4 5
VCC– CC–
IC15, 17: LME49723MA
Dual high fidelity audio operational amplifier
V +
OUTPUT A 1 8
INVERTING INPUT A OUTPUT B
2 7
A B
- + + -
NON-INVERTING
3 6 INVERTING INPUT B
28 VCC2L
INPUT A
27 AGND3L
26 IOUTL-
25 IOUTL+
24 AGND2
VCC1
23
NON-INVERTING
22 VCOML V - 4 5
INPUT B
21 VCOMR
IREF
20
19 AGND1
18 IOUTR-
IOUTR+
17
16 AGND3R
15 VCC2R