CB61
CB62
CB63
IC62
IC61
IC65 IC64
IC66
IC67
IC67
IC68
IC68
IC69
IC69
IC70
IC70
IC771
IC771
IC72
IC63
IC72
A
1
2
3
4
5
6
7
8
9
10
BCDEFGH I JK
L MN
RX-V661/HTR-6060/DSP-AX761
94
★ 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.
DSP 2/3
FL
C
SW
SL
SBL
PL
C/SW
SL/SR
SBL/SBR
PL/PR
FL/FR
DIGITAL IN
ANALOG IN
10.0
10.0
5.2
1.7
1.3
0
3.4
1.7
3.4
3.4
0
0
4.9
3.3
1.7
1.7
1.3
1.7
1.7
1.7
0
0
0
5.2
5.6
2.6
2.6
0
2.6
2.6
4.9
3.3
1.9
1.7
1.3
1.7
1.7
5.2
0
1.2
1.3
0
3.4
1.3
1.3
1.3
1.3
1.3
1.3
0
2.6
2.6
2.7
0
5.2
2.6
0
5.2
2.6
0
2.6
2.6
2.6
2.7
3.4
0
1.7
1.7
1.7
1.7
1.7
1.7
2.6
2.6
0
5.2
5.2
0
00
0
0
0
0
0
0
2.6
2.6
2.6
0
2.6
5.2
5.2
0
0.1
0.1
11.8
0.1
0.2
2.6
11.8
2.6
0.1
1.3
-12.0
1.3
0.1
0.1
11.8
0
-0.1
0
-12.0
-0.1
11.8
-0.1
-0.1
0
-12.0
0
-0.1
-0.1
11.8
-0.1
-0.1
0
-12.0
0
-0.1
-0.1
0.1
0.1
-12.0
0.1
RD35810
100k
VT33290
1SS355
VT33290
1SS355
RD35810
100k
US06110
10P (CH)
HTR-6060RX-V661 RX-V661DSP-AX761 DSP-AX761
RD35810
100k
RD35810
100k
RD35810
100k
RD35810
100k
RD35810
100k
RD35810
100k
RD35810
100k
RD35810
100k
RD35810
100k
s103
s102
s101
s100
R823
s120 C655
D811
R811
R812
WK04180
10/16
UR23710
10/16
UR23710
10/16
UR23710
10/16
UR23710
10/16
UR23710
10/16
UR23710
10/16
UR23710
10/16
WK04180
10/16
WK04180
10/16
WK04180
10/16
US06110
10P (CH)
s120
47/25
IC67-72: NJM4565M
Dual operational amplifier
8
2, 6
3, 5
1, 7
4
V+
–INPUT
+INPUT
V–
OUTPUT
IC63: NJM78M05DL1A
Voltage regulator
IN
OUT
GND
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
AGND2
V
CC
2
AGND1
V
CC
1
DGND
V
DD
ZERO1
ZERO2
BCK
LRCK
DATA1 (1, 2)
DATA2 (3, 4)
DATA3 (5, 6)
DATA4 (7, 8)
MS/ADR
MC/SCL
MD/SDA
MSEL
SCK
8
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
IC65: PCM1680DBQR
Audio digital-to analog converter
Powe r Suppl y
Enhanced
Multilevel
Delta Sigma
Modulator
V
OUTL
4/8
Oversampling
Digital
Filter
With
Function
Control
Audio
Serial
Port
BCK
LRCK
DATA
Serial
Control
Port
Zero Detect
(TEST)
SCK
System
Clock
Manager
MC (DEMP1)
MS (DEMP0)
Output Amp
and
Low Pass Filter
MD (MUTE)
DAC
V
COM
System Clock
AGND
V
CC
ZEROR/ZEROA
(1)
(ZEROA)
ZEROL/NA
(1)
Output Amp
and
Low Pass Filter
DAC
V
OUTR
(FMT)
IC64: PCM1780DBQR
Audio digital-to-analog converter
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
x1/64, x1/128
Decimation
Filter
With
High-Pass Filter
Power Supply
AGNDV
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
Vcc16
ST15
4A14
4B13
4Y12
3A11
3B10
3Y9
ASG
BA
YB
AY
BA
YYB
Power Supply
Enhanced
Multilevel
Delta-Sigma
Modulator
V
OUT
L
4/8
Oversampling
Digital
Filter
With
Function
Control
Audio
Serial
Port
BCK
LRCK
DATA
Serial
Control
Port
Zero Detect
(TEST)
SCK
System
Clock
Manager
MC (DEMP1)
MS (DEMP0)
Output Amp
and
Low-Pass Filter
MD (MUTE)
DAC
V
COM
System Clock
AGND
V
CC
ZEROR/ZEROA
(1)
(ZEROA)
ZEROL/NA
(1)
Output Amp
and
Low-Pass Filter
DAC
V
OUT
R
(FMT)
IC61: PCM1781DBQR
Audio digital-to-analog converter
DSP
2ch DAC
8ch DAC
2ch ADC
SELECTOR
2ch DAC
RX-V661 (U, C models)
U, C models
to FUNCTION (1)_CB205
Page 96
B5
to MAIN (2)_W107
Page 99 J9
to OPERATION (1)_W401
Page 98 H9
to DSP 1/3
to DSP 1/3
to DSP 1/3
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