Yamaha DSP-AX2700, 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-V2700/DSP-AX2700
109
★
All voltages are measured with a 10M
Ω
/V DC electronic voltmeter.
★
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.
SCHEMATIC DIAGRAMS
DSP 1/3
4.9
4.9 4.9
5.0
4.9 3.2
0
3.2
0
0 0
0
0
0
4.9
0
0
0
0
0
0 4.8
4.0 0.1
0 0
4.9 0
3.8 1.2
0
3.2
0
1.2
0
3.2
0
0
0
0 4.8
4.0 0.1
0 0
4.9 0
3.8
0
0
0
0.2
0
4.6
4.9
0
2.3
2.3
2.3 2.8
2.8
0
0
-0.2 -0.2
3.1
0
3.2
0.1
3.2
0 0
0 0
-0.1 0
0.4 0
0 0.4
0 0
0
0
0 3.2
3.2
0
0
0.5
0
1.6
1.6
1.6
0
0
0
0 3.2
3.2 0
1.6 0
0 0
0
1.6 0
0 0
0
0 0
0.5 0
0 0
1.6
1.6
0
3.2
1.5
0
1.3
1.2
2.0
1.6
1.6
0
0
0
0.6
0
0
3.2 3.3 3.1
3.3
0
3.2
3.2 3.2 2.3 0.3
3.3 0 1.6 1.6 0 3.3 1.6 1.6 1.2
0
0.6
0.6
0
3.3
3.8
3.8
0
3.3
0
0
3.2
3.2
3.2
3.2
0
3.3
3.2
1.6
3.3
0
0.6
0
0
3.2 1.2
0 3.2
3.2
0
1.6
3.3
1.6
0
2.0
0
0
3.3
0
1.2 3.2
3.2
0 0
0
0
0
3.2
3.2
3.2
1.5
3.3 0
1.2
0 3.2
0
0 0
3.3 3.2
0 0
2.8 0.6
2.8
0.6
0
4.6
4.6
4.6
4.0
D-3
D-2
DIGITAL IN
DIGITAL IN
ANALOG IN
ANALOG IN
100
100
100
DSP
DIR
INPUT
SELECT
REC OUT
SELECT
DUTY CORRECTOR
XMDT
U, C models
DOCK
XM
To DSP 2/3
IC501 : SN74LVU04APWR
Hex inverters
1A
1Y
2Y
VCC
6A
1
2
3
4 11
2A 6Y
5A
12
13
14
3A
3Y
5Y
4A
5
6
7 4Y 8
9
10
GND
4B 13
4A 12
4Y 11
3B 10
3A 9
3Y 8
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
IC502 : SN74AHCT00PWR
Quadruple 2-input NAND gate
Vcc 14 1A 1
2
3
5
6
11
10
14
13
15
1
G
A/B
4B
4A
3B
3A
2B
2A
1B
1A
4
7
9
12
1Y
2Y
3Y
4Y
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A/B
1A
1B
1Y
2A
2B
2Y
GND
VCC
G
4A
4B
4Y
3A
3B
3Y
IC503, 509 : SN74LV157APWR
Quadruple 2-line to 1-line data selectors/multiplexers
S2
S1
S0
E
I0 I1 I2 I3 I4 I5 I6 I7
Z Z
14 1 2
6
7
3 4
5
9
11
12
10
13 15
VCC = PIN 16
GND = PIN 8
= PIN NUMBERS
IC504, 505 : SN74LS151NSR
8-input multiplexer
Input
Selector
RXOUT
RX0
RX1
RX2
RX3
RX4
RX5/VI
RX6/UI
LPF
TMCK/PIO0
TBCK/PIO1
TLRCK/PIO2
TDATA/PIO3
TXO/PIOEN
Cbit, Ubit
Microcontroller
I/F
Data
Selector
Clock
Selector
Modulation
&
Parallel Port
PLL
XIN XOUT XMCK CKST
SLRCK
SBCK
RLRCK
RBCK
RMCK
SDIN
RDATA
RERR
DO
XMODE CI CE CL INT AUDIO/VO EMPHA/UO
1/N
Demodulation
&
Lock detect
1
2
3
4
5
8
9
10
13
44
45
46
47
48
29 28 27 34
23
22
20
17
16
24
21
36
37
41 38 39 48 35 33 32
IC506 : LC89057W-VF4A-E
Digital audio interface transceiver
IC507, 508 : TC74VHC153FT
Dual 4-channel multiplexer
14 A
S0
S0
6 1C0
2
B
S1
S1
S2
S2
S3
S3
S0
7 1Y
5
1C1
S1
4 1C2
S2
1
1G
3 1C3
S3
10
2C0
S0
9 2Y
11 2C1
S1
12 2C2
S2
15 2G
13
2C3
S3
POINT D-2 Pin 26 of IC510 POINT D-3 Pin 29 of IC506
to FUNCTION (1)_CB411
Page 112 H8
to OPERATION (3)_CB805
Page 116 E2
to FL (2)_CB954
Page 124 A7