Yamaha RX-V1500, Руководство по обслуживанию

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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-V1500/DSP-AX1500
SCHEMATIC DIAGRAM (DSP 2/2)
78
★
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.
1 2
4
3
5
1
2
3
8
7
5
6
4
1
2
3
8
7
5
6
4
1
2
3
8
7
5
6
4
1
2
3
8
7
5
6
4
1
2
3
8
7
5
6
4
1
2
3
8
7
5
6
4
Remarks
2400
IC524: AK4358VQ
192kHz 24Bit 8ch DAC
Control
Register
10 MCLK
3-wire
or 12C
Audio
I/F
DAC
LOUT1+
DATT SCF
PCM
17 LRCK
9 BICK
14 SDTI1
15 SDTI2
16 SDTI3
13 SDTI4
22 DCLK
25 DSDL1
26
DSDR1
27 DSDL2
28 DSDR2
29
DSDL3
30 DSDR3
23 DSDL4
24 DSDR4
DSD
2
LOUT1– 1
DAC
ROUT1+
DATT SCF
SCF
SCF
48
ROUT1– 47
DAC
LOUT2+
DATT
46
LOUT2– 45
DAC
ROUT2+
DATT
44
ROUT2– 43
DAC
LOUT3+
DATT SCF
42
LOUT3– 41
DAC
ROUT3+
DATT SCF
40
ROUT3–
39
DAC
LOUT4+
DATT SCF
38
LOUT4–
37
DAC
ROUT4+
DATT SCF
33
ROUT4–
32
DZF
DSP AUTO CALIBRATION
DRAM
A/D CONVERTER
D/A CONVERTER
SELECTOR
D/A CONVERTER
D/A CONVERTER
x: NOT USED
O: USED / APPLICABLE
Page 80
to FUNCTION
M6 Page 80
to FUNCTION
E1
IC532: SN74AHC1G08DCKR
2-Input And Gate IC533: NJM78L05UA
Voltage Regulator
Y 4
B 2
GND 3
Vcc 5 A 1
INPUT
OUTPUT
GND
IC517: MSM514260E-60JS
4Mbit DRAM
Timing
Generator
I/O
Controller
Output
Buffers
Input
Buffers
Input
Buffers
Output
Buffers
I/O
Controller
Column Decoders
RAS
Refresh
Control Clock
14
WE
13
9
9
LCAS
29
UCAS
A0~A8
28
VCC 20
VSS 21
Sense Amplifiers
I/O
Selector
Memory
Cells
OE
27
DQ9~
DQ16
Column
Address
Buffers
Internal
Address
Counter
Row
Address
Buffers
On Chip
VBB Generator
Row
Deco-
ders
Word
Drivers
9
9
16 16
8
8
8
8
8
8
DQ1~
DQ8
8
8
Serial I/O
Interface
Clock
Divider
MCLK
AINL
Decimation
Filter Modulator
SDTO
TST
16
PDN
13
DIF
14
TTL
15
11
VA
6
AGND
5
VD
7
DGND
8
2
AINR
Decimation
Filter
Modulator
1
VCOM
Voltage
Reference
4
9
LRCK
SCLK
12
10
IC519: AK5380-VT
96kHz 24Bit 2ch ADC
IC520, 525~530: NJM2068MD
Dual OP-Amp.
– +
OUT
1
–IN 1
–V
CC
+V
CC
OUT 2
1
2
3
4 5
+IN
1
–IN
2
+IN
2
– +
6
7
8
Audio
Data
Interface
µ P
Interface
CSN
De-emphasis
Control
Clock
Divider
MCLK
CCLK
8X
Interpolator Modulator
Modulator
SCF
SCF
8X
Interpolator
CDTI
AOUTL+
VDD
VSS
AOUTL-
AOUTR+
AOUTR-
6
PDN
5
1
7
8
LRCK
BICK
SDTI
4
2
3
9
10
11
12
13
14
DZFL
DZFR 15
16
IC521, 523: AK4382AVT
D/A Converter
IC522: 74VHC157MTCX
Quad 2-Input Multiplexer
1 S
10
I1d
15 E
11 I0d
9 Zd
13 I1c
14 I0c
12 Zc
6 I1b
5
I0b
7 Zb
3
I1a
2 I0a
4 Za
1.7
1.7
1.7
1.7
3.4
5.0
5.0
0 5.0
2.5
2.5
0
2.5
0
5.0
0
11.5
0
0
0
-11.9
0
0
2.5
5.0
5.0
0
2.5
2.5
2.5
5.0 0.6 0.6 0.6 0.6 5.0 0.9 0.9 1.0 0.9 3.1
1.9
1.0 1.8 1.8 1.8 5.0
0
3.4
4.9
3.2
2.8
3.4
4.9
1.7
1.7
1.7
0.1
0
0
0.1
0.7
0.1
1.6
2.6
0
1.7
0
1.1 2.6 3.4 3.4 3.4
0
0.3 0.3 0.3 0.3 2.6
2.6 1.8 1.8 1.8 ~ 3.4 1.8 ~ 1.0 ~ ~ 2.3 2.2 3.1 2.3 0.5 0.5 0.5 3.4 0.5 0.5 0.5 0
2.6
0.5
0.5
0.9
1.0
0.9
0.9
0.6
0.6
0.6
0.6
3.4
0.1
0.5
0.5
0.5
1.7
0
0.5
1.7
0
0
3.4
4.9
3.2
0
3.4
4.9
1.7
1.7
0.1
0.5
0.5
0.5
1.7
0
0.5
1.7
2.6
3.4
0
0
0 0
0
0
0
-11.6
11.5
0 -11.6 0
0
0
0
2.9 2.9 3.4
2.9 0
2.9
0
3.4 2.9 0
0
2.9
2.9
3.4
2.9 0
2.9
0
3.4 2.9 0
0
2.9 2.9 3.4
2.9 0
2.9
0
3.4 2.9
2.9
0
2.9 2.9 3.4
2.9 0
2.9
0
3.4
2.9
0
0
0 -11.4 0
0 0
0
0
0 0
-11.4
0
1.5
1.5
0
0
0
-11.6
-11.9
1.5
1.5
0
0
0
0.6
11.5
1.5
1.5
0
0
0
0.6
-11.9
1.5
1.5
0
0
0
0.6
11.5
0
0
0
0
0
0.6
-11.9
1.5
1.5
0
0
0
-11.3
11.5
1.5
0
0
0
-10.3
-11.9
1.5
1.5
0
0
0
0.6
11.5
1.5
1.5
0
0
0
0.6
-11.9
1.5
1.5
0
0
0
0.6
11.5
1.9
1.9
0
0
0
0.6
-11.9
1.9
1.9
0 0 0
3.4 3.4 3.4 3.4 1.7
0 0 0
1.1 2.8 3.4 3.4 3.4 3.4 3.4 0.3 0.3 0.3 0.3 2.6
2.6 3.4 3.4 0
2.6
3.4
3.4
3.4
3.4
4.9
0.2
0.2
1.6
0.2
0.2
1.6
0
0 0.5 0.5 0.5 0.5 0 0.5 0.5 0.5
2.3 2.3
2.2 ~ ~ ~ 1.8 0 ~ 0.5
1.7
1.7
1.4
1.7
3.4
4.9
3.4
2.8
4.9
0
2.5
2.5
2.5
2.5
1.7
1.7
0.2
1.7
3.4
4.9
3.4
2.8
4.9
0
2.5
2.5
2.5
2.5
3.4
0.1
1.6
1.0
0
0
0
3.4
0
0
0
0
0
2.5
2.5
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
0 0 0 0 0 0 4.9 2.4 2.4 4.9 4.9 0
0
4.9 1.7 1.7 3.4 4.5
0
2.4 2.4
0.2
0.2
0.2
1.6
1.7
0
3.4
2.8
4.9
0
0
0
0 0
0 0
DIGITAL IN
FRONT L
CENTER
SURROUND BACK L
1.5
ANALOG IN
C809
IC533
NJM78L05UA
IN
COM
4.7K
4.7K
OUT
R842
5.6K
R636
4.7K
R843
5.6K
390P
390P
390P
0.01
0.01
390P
3900P
3900P
3
900P
3900P
3900P
3900P
390P
390P
390P
390P
390P
390P
390P
390P
390P
390P
390P
390P
390P
390P
390P
390P
3900P
3900P
0.1/16
C811
0.1/16
C813
0.1/16
C810
0.1/16
C812