Yamaha HTR-6295, Руководство по обслуживанию

Страница: 126 / 163

A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V2065/HTR-6295
126
DIGITAL 4/7
★
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.
IC66
IC65
IC61
IC62
IC63
IC67
IC67
IC67
IC67
IC68
CB61
CB64
CB62
CB63
1.7
1.7
1.3
3.1
3.3
3.3
3.3
3.3
0.3
0
0
0
0
1.7
1.7
1.7
1.3
5.1
0
0
0
0
0
0
0
0
1.7
0
0
5.1
3.3
0
0
0
0
5.1
5.1
0
11.7
11.7
5.1
5.1
2.6
2.6
2.6
2.6
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
3.3
5.1
5.0
0
5.0
3.3
0
5.0
0
5.0
0
3.3
5.0 3.3
0 3.3
0
0
3.3
0
2.6
5.0
0 0 0
5.1
0.2
0.2
5.3
12.0
-11.6
0
0
0
0.4
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3.3
3.3
5.0
0
5.0
5.0
5.0
-11.5
-11.5
-11.5
-11.5
-0.4
-0.4
3.3
1.1
3.3
0
0
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
0
0
0
3.3
1.7
0
2.5
2.5
2.6
0
5.1
1.7
1.7
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
Vcc 16
ST 15
4A 14
4B 13
4Y 12
3A 11
3B 10
3Y 9
A S G
B A
Y B
A Y
B A
Y Y B
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
A
GND2
V
CC
2
A
GND1
V
CC
1
DGND
V
DD
ZER
O1
ZER
O2
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) Open-drain output for the PCM1782
NOTE: Signal names in parentheses ( ) are for the PCM1781.
Power Supply
Enhanced
Multilevel
Delta-Sigma
Modulator
VOUTL
Oversampling
4 x 8
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
VCOM
System Clock
AGND
V
CC
ZEROR/ZEROA
(1)
(ZEROA)
ZEROL/NA
(1)
Output Amp
and
Low-Pass Filter
DAC
VOUTR
(FMT)
ZEROA
V
OUT
L
V OUT R
V
COM
AGND
V
CC
NC
TEST
16
15
14
13
12
11
10
9
FMT
DEMP0
DEMP1
MUTE
SCK
DATA
BCK
LRCK
1
2
3
4
5
6
7
8
IC61 : PCM1781DBQR
Audio digital-to-analog converter
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
VINL
Reference
VREF1
VREF2
VINR
Delta-Sigma
Modulator
Delta-Sigma
Modulator
x 1/64, x 1/128
Decimation
Filter
With
High-Pass Filter
Power Supply
AGND VCC VDD 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
Vcc 14
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
1
3
2
5
4
GND
V CC
IC68 : TC7SH08FU
2-input AND gate
IN A
IN B
OUT Y
(U model)
8 ch DAC
2 ch ADC
2 ch DAC
SELECTOR
To DIGITAL 3/7
To DIGITAL 3/7
To DIGITAL 2/7
To DIGITAL 3/7
DIGITAL (1)
to OPERATION (2)_CB452
Page 131 B3
to OPERATION (2)_CB455
Page 131 D3
to GUI_CB503
Page 137 F1
to OPERATION (2)_CB458
Page 131 E3