Yamaha HTR-5940 Manual de serviço - Página 7

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Yamaha HTR-5940 Manual de serviço
A
B
C
DSP 3/3
1
Page 72
D2
to FUNCTION (1)_CB202
2
3
8.8
8.8
1.7
1.3
0
3.3
1.7
4
3.3
3.3
0
0
0
2ch DAC
FRONT L
5.0
3.3
3.1
5
1.7
1.7
C/SW
1.7
1.7
SL/SR
5.0
0
1.7
1.7
0.5
0
8ch DAC
0
0
DIGITAL IN
0
0
6
3.3
3.3
0.1
0
0.1
1.7
1.7
1.7
0
1.7
SBL/SBR
0
1.7
1.7
0
1.7
FL/FR
SELECTOR
7
8
9
10
D
E
F
Page 74
J7
to MAIN (2)_W1004
DSP
5.1
5.1
0
ANALOG IN
1.7
0
11.8
0
3.3
0
0
0
0
5.0
2.5
2.5
2.5
2.5
0
0
0
-11.9
11.8
0
0
0
2.5
2.5
2.6
0
0
0
0
5.1
-11.9
2.5
2.5
2.5
2.5
0
5.1
2.5
11.8
0
0
0
0
0
0
-11.9
11.8
0
0
0
0
0
0
-11.9
11.8
0
0
0
0
0
0
-11.9
G
H
FRONT L
CENTER
SUB
WOOFER
SURROUND L
SURROUND
BACK L
IC51 : NJM78M05DL1A
Voltage regulator
INPUT
OUTPUT
COMMON
I
J
K
LC89057W-VF4A-E
LC89057W-VF4AD-E
IC67 : SN74LV157APWR
DATA1 (1, 2)
Quadruple 2-line to 1-line data selectors/multiplexers
DATA2 (3, 4)
DATA3 (5, 6)
DATA4 (7, 8)
1A
2
4
1Y
1B
3
A/B
1
16
V
2A
5
CC
1A
G
2
15
7
2Y
2B
1B
3
14
4A
6
1Y
4B
4
13
3A
11
2A
5
12
4Y
2B
6
11
3A
9
3Y
3B
10
2Y
7
10
3B
GND
8
9
3Y
4A
14
12
4Y
4B
13
G
15
A/B
1
# All voltages are measured with a 10MΩ/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.
L
M
N
IC71-74, 75, 76 : NJM4565M
Dual operational amplifier
V+
8
2, 6
–INPUT
OUTPUT
1, 7
+INPUT
3, 5
V–
4
IC70 : PCM1803DBR
Stereo A/D converter
Delta-Sigma
BCK
V
L
IN
Modulator
LRCK
DOUT
Serial
x1/64, x1/128
Interface
V
1
REF
Decimation
Reference
Filter
V
2
With
Mode/
REF
High-Pass Filter
Format
FMT0
Control
FMT1
Delta-Sigma
MODE0
V
R
IN
Modulator
MODE1
BYPAS
TEST
OSR
Power Supply
Clock and Timing Control
PDWN
SCKI
V
AGND
DGND
V
CC
DD
IC69 : PCM1781DBQR
Audio digital-to-analog converter
BCK
Audio
LRCK
Serial
Output Amp
V
L
OUT
DATA
Port
DAC
and
Low-Pass Filter
4 /8
Oversampling
Enhanced
Digital
Multilevel
(FMT)
Filter
V
COM
Delta-Sigma
With
Modulator
Function
MS (DEMP0)
Serial
Control
Control
MC (DEMP1)
Port
Output Amp
DAC
and
MD (MUTE)
Low-Pass Filter
V
R
OUT
(TEST)
System Clock
System
SCK
Clock
Zero Detect
Power Supply
Manager
(1) Open-drainoutputforthePCM1782
NOTE: Signal names in parentheses ( ) areforthe PCM1781.
IC68 : PCM1680DBQR
Audio digital-to-analog converter
Outp ut A mp and
V
1
OUT
DAC
Low-P ass Filter
BCK
LRCK
Outp ut A mp and
V
2
OUT
DAC
Low-P ass Filter
Serial
Input
I/F
Outp ut A mp and
V
3
OUT
DAC
Low-P ass Filter
8
Outp ut A mp and
V
COM
DAC
Oversampling
Enhanced
Low-P ass Filter
V
4
Digital Filter
OUT
Multilevel
With
DeltaœSigma
Outp ut A mp and
Function
Modulator
DAC
Controller
Low-P ass Filter
V
5
OUT
MS/ADR
Outp ut A mp and
MC/SCL
DAC
Low-P ass Filter
V
6
OUT
MD/SDA
Function
Control
Outp ut A mp and
I/F
DAC
Low-P ass Filter
V
7
OUT
MSEL
Outp ut A mp and
DAC
Low-P ass Filter
V
8
OUT
System Clock
Syst em Clock
SCK
Zero Detect
Power Supply
Manager