Yamaha RX-V2065 Service Manual page 126

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A
B
C
RX-V2065/HTR-6295
DIGITAL 4/7
1
2
DIGITAL (1)
3
4
11.7
5.1
5.1
11.7
IC63
0
5
To DIGITAL 3/7
6
DIGITAL IN
FL/FR
C/SW
SL/SR
SBL/SBR
0
3.3
0
1.3
1.3
1.7
1.3
1.7
0
1.7
7
0
1.7
1.7
0
1.7
SELECTOR
8
9
10
★ 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.
126
D
E
F
Page 137
to GUI_CB503
(U model)
0
0
2.5
0
2.5
2.6
3.3
1.7
0
0
5.1
1.7
1.7
FRONT L
2 ch DAC
SUBWOOFER
SURROUND L
SURROUND BACK L
1.7
1.7
1.3
0
0
0
3.1
3.3
1.7
0
3.3
5.1
3.3
2.6
0
2.6
0
2.6
0
2.6
2 ch ADC
2.5
3.3
3.3
2.5
2.6
0.3
1.7
0
1.3
5.1
2.5
1.7
1.7
2.5
5.1
2.5
To DIGITAL 2/7
0
2.5
0
0
0
5.1
2.5
0
0
2.5
0
8 ch DAC
0
0
0
G
H
I
F1
CB61
5.0
To DIGITAL 3/7
0
0
0
DIGITAL IN
0.2
0.4
0
0.4
0.2
Page 131
B3
5.3
to OPERATION (2)_CB452
12.0
-11.6
0
0
0
0
0
0
0
ANALOG IN
CB62
0
0
0
CENTER
0
0
2.5
2.5
2.5
0
Page 131
D3
2.5
2.5
to OPERATION (2)_CB455
2.5
0
2.5
2.5
0
0
0
0
To DIGITAL 3/7
CB63
0
3.3
3.3
5.0
0
0
3.3
1.1
0
3.3
5.0
Page 131
E3
5.0
to OPERATION (2)_CB458
5.0
-11.5
-11.5
-11.5
-11.5
-0.4
-0.4
5.0
5.0
0
3.3
0
0
5.1
3.3
5.0
IC67
0
0
IC67
0
0
IC67
3.3
5.0
IC67
3.3
5.0
IC68
0
3.3
J
K
L
IC61: PCM1781DBQR
Audio digital-to-analog converter
BCK
Audio
LRCK
Serial
DATA
Port
4 x 8
Oversampling
Digital
(FMT)
Filter
With
MS (DEMP0)
Function
Serial
Control
Control
MC (DEMP1)
Port
MD (MUTE)
(TEST)
System Clock
SCK
System
Clock
Manager
(1) Open-drain output for the PCM1782
NOTE: Signal names in parentheses ( ) are for the PCM1781.
IC62: TC74VHC157FT
Quad 2-channel multiplexer
SELECT 1
1A 2
A S G
1B 3
B A
1Y 4
Y B
2A 5
A Y
2B 6
B A
2Y 7
Y Y B
GND 8
IC65: PCM1680DBQR
Audio digital-to-analog converter
BCK
LRCK
Serial
Input
DATA1 (1, 2)
I/F
DATA2 (3, 4)
DATA3 (5, 6)
DATA4 (7, 8)
MS/ADR
MC/SCL
MD/SDA
Function
Control
I/F
MSEL
System Clock
System Clock
SCK
Manager
IC66: PCM1803DBR
Stereo A/D converter
V
L
IN
V
1
REF
Reference
V
2
REF
V
IN
R
V
CC
M
N
Output Amp
V
OUT
L
DAC
and
Low-Pass Filter
Enhanced
Multilevel
V
COM
Delta-Sigma
Modulator
Output Amp
DAC
and
Low-Pass Filter
V
OUT
R
Zero Detect
Power Supply
FMT
1
16
ZEROA
DEMP0
2
15
V
L
OUT
DEMP1
3
14
V
R
OUT
MUTE
4
13
V
COM
SCK
5
12
AGND
DATA
6
11
V
CC
BCK
NC
7
10
LRCK
TEST
8
9
IC63: NJM78M05DL1A (TE1)
Voltage regulator
16
Vcc
INPUT
15
ST
14
4A
13
4B
12
4Y
OUTPUT
11
3A
10
3B
9
3Y
GND
Output Amp and
V
OUT
1
DAC
Low-Pass Filter
Output Amp and
V
OUT
2
DAC
Low-Pass Filter
Output Amp and
V
OUT
3
DAC
Low-Pass Filter
8
Output Amp and
V
COM
Oversampling
DAC
Enhanced
Low-Pass Filter
V
4
Digital Filter
Multilevel
OUT
With
DeltaœSigma
Output Amp and
Function
Modulator
DAC
Controller
Low-Pass Filter
V
5
OUT
Output Amp and
DAC
Low-Pass Filter
V
6
OUT
Output Amp and
DAC
Low-Pass Filter
V
7
OUT
Output Amp and
DAC
Low-Pass Filter
V
8
OUT
Zero Detect
Power Supply
Delta-Sigma
BCK
Modulator
LRCK
DOUT
Serial
x 1/64, x 1/128
Interface
Decimation
Filter
With
Mode/
High-Pass Filter
Format
FMT0
Control
FMT1
Delta-Sigma
MODE0
Modulator
MODE1
BYPAS
TEST
OSR
Clock and Timing Control
PDWN
Power Supply
SCKI
AGND
DGND
V
DD
V
L
1
20
MODE1
IN
V
IN
R
2
19
MODE0
3
18
V
REF
1
FMT1
V
2
4
17
FMT0
REF
V
5
16
OSR
CC
AGND
6
15
SCKI
PDWN
7
14
V
DD
BYPAS
8
13
DGND
TEST
9
12
DOUT
LRCK
10
11
BCK
IC67: TC74VHCT08AFT
Quad 2-input AND gate
1A
1
14
Vcc
1B
2
13
4B
1Y
3
12
4A
2A
4
11
4Y
2B
5
10
3B
2Y
6
9
3A
GND
3Y
7
8
IC68: TC7SH08FU
2-input AND gate
IN B
1
5
V
CC
IN A
2
GND
3
OUT Y
4

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