Yamaha DSP-N600, Service Manual

Page: 107 / 142

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-N600/RX-N600D/HTR-N5060/DSP-N600
107
★
All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
★
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.
NET 3/3
1.6
5.0
0
5.0
5.0
5.0
5.0
5.0
11.8
0.1
0
0.4
0
3.3
0
5.0
0
2.5
2.5
2.5
5.0
0
0
0
3.3
1.6
0.1
2.2
1.7
0
1.7 1.7 1.7
1.7 1.6
A-1
3.3
0.1 0.1
0.1
0
0.1
to FUNCTION (1)_W2000
Page 100 C9
NET
D/A
ENCODER
DCT
OP-AMP
IC752 : NJM4565M
8
2, 6
3, 5
1, 7
4
V+
–INPUT
+INPUT
V–
OUTPUT
Dual operatinonal amplifier
IC751 : PCM1781DBQR
Audio digital-to-analog converter
(1) Open-drainoutputforthePCM1782
NOTE: Signal names in parentheses ( ) areforthe PCM1781.
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)
Outp ut Amp
and
Lo w-Pass Fil ter
MD (MUTE)
DAC
V
COM
System Clock
AG
N
D
V
CC
ZER
O
R/ZER
O
A
(1)
(ZER
O
A
)
ZER
O
L/NA
(1)
Outp ut Amp
and
Lo w-Pass Fil ter
DAC
V
OUT
R
(FMT)
IC754 : BH2220FVM-TR
8bit 3ch D/A converter
1 AO1
2 AO2
3 AO3
4
8
7
6
5 V
CC
LD
CLK
DI
GND
V
CC
V
CC
V
CC
R-2R
DAC 8bitREG
+
DEC
R-2R
DAC 8bitREG
+
DEC
R-2R
DAC
Power on reset
8bitREG
+
DEC
Serial
Interface
POINT A-1 Pin 6 of IC753
IC753 : SN74AHC2GU04HDCT
Triple inverter
1
2
3
4
8
7
6
5
1A
3Y
2A
GND
Vcc
1Y
3A
2Y
2ch DAC