Yamaha RX-V367 Service Manual page 82

A B C
RX-V367/HTR-3063
DIGITAL 4/4
1
2
To DIGITAL 2/4
To DIGITAL 1/4
3
POINT D XL261 (Pin 29 of IC261)
4
To DIGITAL 3/4
5
To DIGITAL 2/4
6
5.1
3.4
0
7
1.3
8 0
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.
82
D E F
DIGITAL IN
0 3.4
0 3.3
0 3.3
0.3 0
0.4 0
0 0
IC261
D
3.4 3.4
0.4 1.6
0.3
1.7
DIR
0 1.7
3.4 3.4
0 0
IC268
IC266
8.0
IC264
To DIGITAL 3/4
IC265
To DIGITAL 2/4
CB262
Page 84 B8
to OPERATION (2)_CB131
G H
No replacement part available.
DOCK
サービス部品供給なし
CB261
To DIGITAL 2/4
1.7 1.7
1.3 0
0 0
3.4 3.4
1.7 0
3.4 5.1
5.0
3.4
0 2.5
2.6
0
0 2.6
ADC
To DIGITAL 2/4
3.4 0
3.3 2.5
2.6
0.2
FL/FR 1.7 0
1.3 5.1
2.5
1.7
1.7 2.5
2.5
3.4
0 2.5
C/SW
1.4 0
1.3 5.1
0 2.5
3.4 2.5
SL/SR
DAC
IC267 IC267
5.1 5.1
3.4 0
5.1
To DIGITAL 2/4
IC266: NJM2830U1-05 (TE1)
Low dropout voltage regulator
V 5 4 V
IN
CONTROL 1 Thermal
Protection
Bandgap
Reference
GND 2
I J K
DIGITAL IN
FRONT L
CENTER
SUBWOOFER
SURROUND L
5.1
IC267 IC267
5.1 0
0 0
0 0
0
IC267: TC74VHCT08AFT
IC268: NJM2867F3-05
Quad 2-input AND gate Low dropout voltage regulator
1A 1 14 Vcc V
IN 5 4
OUT
1B 2 13 4B
Control 1
Thermal
1Y 3 12 4A
Protection
2A 4 11 4Y
Bandgap
Reference
2B 5 10 3B
2Y 6 9 3A
GND 7 8 3Y
GND
2
L M N
IC261: LC89058WD-E
Digital audio interface receiver
MOUT INT AUDIO
32 35 33
41 XMODE
Fs calculator
GPIO0 44 Microprocessor
40 CL
GPIO1 45 I/F
39 CE
46
GPIO2
Cbit, Pc 38 DI
GPIO3 47
37 DO
RXOUT2 48
RXOUT1 1
RX0 2
Input 36 RERR
Demodulation
RX1 3
Selector and
24 SDIN
RX2 4 Lock detect Data
Selector
RX3 5
21 RDATA
RX4 8
RX5 9
PLL
Clock
RX6 10 Clock 16 RMCK
Selector
Divider
17 RBCK
LPF 13
20
RLRCK
XIN 29
Oscillation
22 SBCK
XOUT 28
Amplifier
23 SLRCK
27
XMCK
34
CKST
IC262: PCM1803DBR
Stereo A/D converter
Delta-Sigma BCK
V L
IN Modulator
LRCK
DOUT
Serial
x 1/64, x 1/128
Interface
V 1
REF Decimation
Reference Filter
V 2 With Mode/
REF
High-Pass Filter Format FMT0
Control FMT1
Delta-Sigma MODE0
V IN R
Modulator MODE1
BYPAS
TEST
OSR
Clock and Timing Control PDWN
Power Supply
SCKI
5.1
V CC AGND DGND V DD
0.3
V L 1 20 MODE1
IN
0.4 V IN R 2 19 MODE0
3 18
V REF 1 FMT1
0
V 2 4 17 FMT0
REF
V 5 16 OSR
0.4 CC
AGND 6 15 SCKI
0.3 PDWN 7 14 V
DD
BYPAS 8 13 DGND
0
TEST 9 12 DOUT
LRCK 10 11 BCK
0
0
0
Page 84 E4
0
0 to OPERATION (4)_CB196
5.1
0
0
3.3
0
0
IC263: PCM1681PWPR
Audio digital-to-analog converter
Output Amp and V
DAC
Low-Pass Filter
BCK
LRCK
Output Amp and V
DAC
Serial Low-Pass Filter
DATA1 (1, 2) Input
I/F
Output Amp and V
DATA2 (3, 4) DAC
Low-Pass Filter
DATA3 (5, 6)
DATA4 (7, 8)
8 x Output Amp and V
DAC
Oversampling Enhanced
Low-Pass Filter V
Digital Filter Multilevel
With
Delta-Sigma
Output Amp and
Function Modulator DAC
Controller Low-Pass Filter V
MS/ADR/FMT1
Output Amp and
MC/SCL/DEMP DAC
Low-Pass Filter V
MD/SDA/MUTE Function
Control
Output Amp and
I/F DAC
Low-Pass Filter V
MSEL Output Amp and
DAC
Low-Pass Filter V
System Clock
System Clock
SCK Zero Detect Power Supply
Manager
0
0
0
2.5
2.5
2.5
1 28
ZR1/ZR1/FMT0 ZR2
0
2 27 V OUT 1
MS/ADR/FMT1
2.5
MC/SCL/DEMP 3 26 V OUT 2
2.5 4 25 V COM
MD/SDA/MUTE
SCK 5 24 AGND2
2.5
V CC 2
DATA1 6 23
0
BCK 7 22 V OUT 3
8 21 V OUT 4
0 LRCK
V DD 9 20 V OUT 5
0
V OUT 6
DGND 10 19
-11.7
DATA2 11 18 AGND1
-11.7 DATA3 12 17 V CC 1
Page 84 E2
DATA4 13 16 V OUT 7
-11.7
14 15 V OUT 8
to OPERATION (4)_CB195 MSEL
5.1
0
IC264, 265: BD9325FJ
2A output current integrated MOSFET step down regulator
VCC
EN 5V
OPEN
7 VREF OSC VREG
SHUTDOWN
BST
1
OCP
12V
VIN
UVLO
2
IBIAS
TSD
S LVS
FB
ERR OUTPUT
5 DRV SW
3
LOGIC
COMP SLOPE
PWM R
LVS
6
SS
8 Soft Start
V
OUT
4
GND
OUT 1
OUT 2
3
OUT
COM
4
OUT
5
OUT
6
OUT
7
OUT
8
OUT