Yamaha HTR-4063, Service Manual

Page: 104 / 137

A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V467/HTR-4063
104
DIGITAL 4/4
★
All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★
Components having special characteristics are marked ⚠ and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。
● ⚠印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、
パーツリストに記載されている部品を使用してください。
● 本回路図は標準回路図です。改良のため予告なく変更することがあります。
IC66
IC65
IC62
IC63
CB61
CB62
CB63
IC67
IC67
IC67
IC67
IC68
SUBWOOFER
SURROUND L
CENTER
FRONT L
FL/FR
C/SW
SL/SR
DIGITAL IN
ANALOG IN
DIGITAL IN
5.0
5.0
11.8
11.8
0
1.7
1.3
0
3.3
1.7
3.3
3.3
0
0
0
1.7
0
0
3.3
0
5.0
4.7
2.5
2.5
2.5
3.3
3.3
0.2
1.7
1.3
1.7
1.7
5.0
0
1.3
1.3
0
0
2.5
2.5
2.5
0
5.0
2.5
2.5
2.5
2.5
0
5.0
2.5
2.5
0
0
0
0
0
1.3
1.3
1.3
0
0
0
3.3
0
1.7
1.7
1.7
1.7
1.7
1.3
5.0
0
0
4.0
0.4
0
0.4
4.0
0
12.1
-12.1
0
0
0
0
0
0
0
0
2.5
2.5
2.5
0
2.5
2.5
2.5
0
2.5
2.5
0
0
0
0
0
3.4
3.4
5.0
0
5.0
3.4
1.1
0
0
0
0
0
-11.9
-11.9
-11.9
3.0
-0.4
-0.4
3.3
0
0
3.3
0
5.0
5.0
0
5.0
0
IC65 : PCM1680DBQR
Audio digital-to-analog converter
Output Amp and
Low-Pass Filter
System Clock
Manager
Enhanced
Multilevel
Delta-Sigma
Modulator
DAC
Serial
Input
I/F
Function
Control
I/F
System Clock
Zero Detect Power Supply
DAC
Output Amp and
DAC
DAC
Output Amp and
DAC
Output Amp and
DAC
Output Amp and
V
OUT
1
V
OUT
2
V OUT 3
V
COM
V
OUT
4
V
OUT
5
V OUT 6
Low-Pass Filter
Low-Pass Filter
Low-Pass Filter
Low-Pass Filter
Low-Pass Filter
Output Amp and
A
G
ND2 V
CC
2
A
G
ND1 V
CC
1
DGND
V
DD
ZER
O1
ZER
O2
BCK
LRCK
DATA1 (1, 2)
DATA2 (3, 4)
DATA3 (5, 6)
DATA4 (7, 8)
MS/ADR
MC/SCL
MD/SDA
MSEL
SCK
8 x
Oversampling
Digital Filter
With
Function
Controller
DAC
Output Amp and
DAC
Output Amp and
V
OUT
7
V
OUT
8
Low-Pass Filter
Low-Pass Filter
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VINL
VINR
VREF1
VREF2
VCC
AGND
PDWN
BYPAS
TEST
LRCK
MODE1
MODE0
FMT1
FMT0
OSR
SCKI
VDD
DGND
DOUT
BCK
IC66 : PCM1803DBR
Stereo A/D converter
BCK
V
IN
L
Reference
V
REF
1
V
REF
2
V
IN
R
Delta-Sigma
Modulator
Delta-Sigma
Modulator
x 1/64, x 1/128
Decimation
Filter
With
High-Pass Filter
Power Supply
AGND V CC V DD DGND
Clock and Timing Control
Serial
Interface
Mode/
Format
Control
LRCK
DOUT
FMT0
FMT1
MODE0
MODE1
BYPAS
OSR
PDWN
SCKI
TEST
IC62 : TC74VHC157FT
Quad 2-channel multiplexer
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
IC67 : TC74VHCT08AFT
Quad 2-input AND gate
Vcc 14
4B
4A
4Y
3B
3A
3Y
1A 1
2
3
13
12
11
10
9
8
4
5
6
7
1B
1Y
2A
2B
2Y
GND
IC63 : NJM78M05DL1A (TE1)
Voltage regulator
INPUT
OUTPUT
GND
To DIGITAL 3/4
To DIGITAL 3/4
To DIGITAL 3/4
To DIGITAL 2/4
ADC
DAC
to OPERATION (2)_CB452
Page 106 E3
to OPERATION (2)_CB455
Page 106 G3
to OPERATION (2)_CB458
Page 106 I3
DRAFT