Yamaha RX-V465 Service Manual
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Brand: Yamaha
Category: Receiver , Stereo Receiver
Type: Service manual
Model: Yamaha HTR-6240 , Yamaha RX-V465 , Yamaha AX-V465
Pages: 147
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★ 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.
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10
BCDEFGH I J KLMN
RX-V465/HTR-6240/AX-V465
114
DIGITAL 4/4
IC66IC65
IC61
IC62
IC63
IC67
IC67
IC67
IC67
IC68
CB61
CB62
CB63
1.7
1.7
1.3
3.4
3.4
1.7
3.3
3.3
0.3
0
0
1.7
1.7
1.7
1.3
5.0
1.4
1.3
1.7
0
0
0
0
0
1.7
0
0
5.0
0
0
5.0
5.0
0
10.4
10.4 5.1
5.1
4.9
2.5
2.5
2.5
0
0
0
0
1.3
1.3
1.3
2.5
2.5
2.5
2.5
2.5
2.5
2.5
1.7
1.7
1.7
1.7
1.7
1.7
0
3.4
5.1
5.1
5.1
5.1
0.2
3.4
0
0
3.3
3.3
2.6
2.5
SUBWOOFER
SURROUND L
CENTER
SURROUND BACK L
FRONT L
FL/FR
C/SW
SL/SR
SBL/SBR
DIGITAL IN
ANALOG IN
DIGITAL IN
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
IC65 : PCM1680DBQR
Audio digital-to-analog converter
Output Amp and
Low-Pass Filter
System Clock
Manager
Enhanced
Multilevel
DeltaœSigma
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
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
IN
L
V
IN
R
V
REF
1
V
REF
2
V
CC
AGND
PDWN
BYPAS
TEST
LRCK
MODE1
MODE0
FMT1
FMT0
OSR
SCKI
V
DD
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
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
IC67: TC74VHCT08AFT
Quad 2-input AND gate
Vcc14
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
8 ch DAC
2 ch ADC
SELECTOR
to DIGITAL 3/4
to DIGITAL 3/4
to DIGITAL 2/4
to DIGITAL 3/4
to OPERATION (2)_CB452
Page 116
B3
to OPERATION (2)_CB455
Page 116
D3
to OPERATION (2)_CB458
Page 116
E3