Yamaha RX-V671 Service Manual page 137

A B C
RX-V671/HTR-6064/RX-A710
OPERATION 2/2
1
2
3
OPERATION (2)
4
SIRIUS
5
6
7
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.
138
D E F
Page 131
to DIGITAL (1)_CB83
Page 134 M2 Page 134
to DIGITAL (1)_CB943 to DIGITAL (1)_CB944
IC458
FRONT L
IC458
DIGITAL IN
ANALOG IN
Page 140 A3 Page 140 C5 Page 140
to MAIN (1)_CB152 to MAIN (1)_CB153 to MAIN (1)_CB154
G H I
OPERATION (10)
A model
IC491
Page 131 J9
to DIGITAL (1)_CB83
CB494
OPERATION (9)
U, C models
W4901
J9
CB491
CB463
M4
Page 145 D3
to VIDEO (1)_CB347
IC456
SURROUND L
SUB
WOOFER
CENTER
C6 Page 140 C7 Page 144
to MAIN (1)_CB155 to VIDEO (1)_CB302
J K
SURROUND
BACK L
R
ZONE 2/
PRESENCE
L
OPERATION (8)
Page 134 M6
to DIGITAL (1)_CB945
IC457
SURROUND
BACK L
MS/ADR/FMT1
MC/SCL/DEMP
MD/SDA/MUTE
Page 137 H9
to OPERATION (1)_CB402
CB458
CB456
W4301
Page 146 F4
to VIDEO (10)_CB383
( A model )
IC457: KIA7805API
Voltage regulator
R22
R1
Q12
R12
Q18
J6
R18
R11
Z1
Q2
Q13
R13
R4
L M N
IC451-454: LM833MX IC455, 459: NJM2505A
Operational amplifier Single isolation amplifier
OUT A 1 8 + Vcc
Vout 1
5 VGND
A
-IN A 2 7 OUT B
-
GND 2
+IN A 3 B 6 -IN B +
-VEE 4 5 +IN B
4 Vin
V+ 3
IC456: PCM1681PWPR
Audio digital-to-analog converter
V 1
Output Amp and OUT
DAC
BCK Low-Pass Filter
LRCK
Output Amp and V 2
OUT
DAC
Serial Low-Pass Filter
DATA1 (1, 2) Input
I/F V 3
DATA2 (3, 4) Output Amp and OUT
DAC
Low-Pass Filter
DATA3 (5, 6)
DATA4 (7, 8) 8 x
Output Amp and V COM
DAC
Oversampling Enhanced
Low-Pass Filter
V OUT 4
Digital Filter Multilevel
With Delta-Sigma
Function Output Amp and
Modulator DAC
Controller Low-Pass Filter
V OUT 5
Output Amp and
DAC
Low-Pass Filter
V 6
OUT
Function
Control
Output Amp and
I/F DAC
Low-Pass Filter
V 7
OUT
MSEL
Output Amp and
DAC
Low-Pass Filter
V 8
OUT
System Clock
System Clock
SCK Zero Detect Power Supply
Manager
1 28
ZR1/ZR1/FMT0 ZR2
2 27
MS/ADR/FMT1 V OUT 1
MC/SCL/DEMP 3 26 V OUT 2
4 25 V COM
MD/SDA/MUTE
5 AGND2
SCK 24
V CC 2
DATA1 6 23
7 22 V OUT 3
BCK
8 21 V OUT 4
LRCK
V DD 9 20 V OUT 5
DGND 10 19 V OUT 6
DATA2 11 18 AGND1
DATA3 12 17 V CC 1
13 16
DATA4 V OUT 7
14 15
MSEL V OUT 8
IC458: NJM4565M (TE1)
Dual operational amplifier
1 INPUT
R17 R23
V+
8
Q11 Q11-1
Q15
Q16
Q14 R14
R10 R15
2, 6
Q17 Q19
R19 R16
–INPUT OUTPUT
3 OUTPUT
1, 7
R20 +INPUT
Q6
Q1 3, 5
R9
R7 C1
R2
Q10
Q7 R21
R3
Q4
V–
Q3 Q5 Q9 Q8 4
R5
R6 R8
2 COMMON (GND)