Yamaha RX-V350, 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-V350/HTR-5730
SCHEMATIC DIAGRAM (DSP)
52
★
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.
IC802: 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
1
2
3
4
5
6
7
8
9
10
11
SDOS
I2C
SMUTE
BICK
LRCK
SDTI1
SDTI2
SDTI3
SDTO
DAUX
DFS0
33
32
31
30
29
28
27
26
25
24
23
DZF2/OVF
RIN
LIN
NC
MASTER
ROUT1
LOUT1
ROUT2
LOUT2
ROUT3
LOUT3
44 43 42 41 40 39 38 37 36 35 34
TDM0 LOOP0 DIF1 DIF0 P/S MCLK DZF1 A
VSS
A
VDD
VREFH VCOM
12 13 14 15 16 17 18 19 20 21 22
SDTI4
DZFE
TVDD D
VDD
D
VSS PDN
TST
CAD1 CAD0
LOUT4 R
OUT4
MCLK
LRCK
BICK
Format
Converter
SDOS
SDOUT
SDIN1
SDIN2
SDIN3
SDIN4
ADC HPF
Audio
I/F
ADC HPF
DAC DATT LPF
DAC DATT LPF
DAC DATT LPF
DAC DATT LPF
DAC DATT LPF
DAC DATT LPF
DAC DATT LPF
DAC DATT LPF
AK4628
IC803: AK4628VQ
192kHz 24Bit 8-channel CODEC
22
ROUT4
12
1
SDTI4
8 SDTI3
7 SDTI2
6 SDTI1
9 SDTO
10 DAUX
4 BICK
5 LRCK
39 MCLK
32 RIN
31 LIN
21 LOUT4
24
ROUT3
23 LOUT3
26 ROUT2
25 LOUT2
28 ROUT1
27 LOUT1
IC804: PQ025EZ5MZP
Regulator
1 Vin 3 Vo
2 Vc
5
GND
IC805: µ PC29M33T-E1
Voltage Regulator
3 OUTPUT
1 INPUT
2 COMMON (GND)
Safety Drive
Limiter
Excessive Electric
Current Protection
Sudden Current
Protection
Starter Circuit
Driver
Standard Voltage
Overheat Protection
Amp.
IC806: TC74HCT08AF
Quad 2-Input And Gate
Vcc 14
4B 13
4A 12
4Y 11
3B 10
3A 9
3Y 8
1A 1
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
IC807: MM74HCU04SJX
Hex Inverters
A1
Y1
Y2
VCC
A6
1
2
3
4 11
A2 Y6
A5
12
13
14
A3
Y3
Y5
A4
5
6
7 Y4 8
9
10
GND
Point
1
Pin 1 of IC801
DSP
LEVEL CONVERT &
SIGNAL DETECT
A/D
CONVERTER
4M DRAM
REGULATOR
Page 56
to MAIN (1)
H5 Page 53
to FUNCTION (1)
H1
P
age 54
to FUNCTION (2)
D9
P
age 56
to MAIN (1)
C10
1
FRONT L
CENTER
SURROUND L
0
2.5
2.5
0 0
1.2
4.9 4.9 4.9
0
4.9
0 0 0
2.6
2.6
0
4.9
0
5.0 2.5
2.5
5
.0
2.5
5
.0
02
.5
02
.5
5.0
4.9 1.7
2.5
2.5
2.5
2.5
0
0
1.9
1.7
1.7
0
0
1.3
0.1
0.7
0
0
1.3
1.3
~
1.3
0
1.3
1.3
1.3
1.3
0
0
2.3
~
~
~
1.8
1.8
0
4.8
1.4
1.4
1.4
1.4
4.8
~
~
~
~
2.3
1.7
1.1
1.7
1.7
1.7
4.8
4.9
0
4.0
4.9
0
4.0
2.6 5.0
3.4 5.0
3.4
0
2.6 4.8 5.0
0
5.0
1.7 1.8 1.7 1.8 1.7
~
1.1
~ ~
3.4
0
1.7 2.3 2.3
0
1.3 1.2 1.2 1.2 1.2 1.2 1.2 1.2
3.4
0
~ ~ ~ ~
1.4
1.7 1.7
0
3.4
0
0.3 0.3 0.2 0.3 3.4 0.1 0.1 0.1
0
0.1 3.4
0
1.9
0
4.9 3.4 0.3
0 0 0
1.9
0
2.6
0
0
2.5
0
0
0
0
0
3.4
0
0
0.1
0
0.5
4.9
0
0
4.0
4.0 2.5
0
0
0
1.7
1.7
1.7
0
0
1.2
1.3
0.1
0.7
3.4
0
0
0
2.5
1.4
1.4
1.4
0 0
2.5
0
0
0
0
4.9
0
0
0 0 4.9
2.4 0 0
0
2.8 4.9 0 0 0
0
4.9