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
110
★
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.
DSP 2/3
0
3.2
0
1.5
3.3
3.3 3.3
3.3
0
0.2 3.2
0.4 1.2 0.3
0 0
0.4 0.5
3.3 3.3 3.3 1.2
0
0.2 0.4
1.1
0.3 0.3
3.3
0.3
0
0
0.4
1.2 2.8
3.2
3.3
0
1.7 2.9
0
0
1.4 0 0 0
0 0
3.3
0 0
0 1.2
0 1.2
0 1.2
2.5 1.5
3.1 0 1.2
3.2 3.2 3.2
0.3 0 0 0.4 1.0 0 1.0 3.3
0 3.1
0
3.2
0
3.2
3.3
1.2
3.2
0
3.3
0
3.3
0
3.2
3.3
3.3
0
0.2 0
5.8 4.6
1.4
4.8 4.9
2.2
4.9 4.8
0 0
0
3.3 2.5
1.2
1.2
0 0
0
2.2
2.2
1.2
2.5
2.5 3.3
-0.1 -0.1
4.6
3.3
4.3
5.0 5.3
0 0 0
5.3 5.1 5.8
0
2.7 2.2
2.2 4.6
0.4
0
0.4
0.3
3.3
0.3
0
0
0.4
2.8
3.3
3.2
1.7
3.3
0
0
0
2.9
2.9
0.3
0
3.3 0 3.2
0 0
0 0.2
2.8 0.2
0.4
0.4
0.3
0.3
0.3
0.2
3.3
0.3
0.4
0
0.5
0.4
3.3
2.8
3.2
0
3.2
3.2
0
0
0
3.2
3.2
0
0
2.9
2.9
0.3
3.2
0
0
0
0
0.5
0.4
3.3
0.2
0.3
0
0.4
0.2
3.3
3.3
3.3
3.3
3.3
0
3.3
2.8
0
0
0
3.2
3.3
0
2.8
3.3
0
1.2
0
0
0
3.2
1.2
0.3
2.9
0
3.3
2.9
0
0
1.2
0
0
0
3.3
0
0
0
0
0
1.2
0
3.3
0
0
0
3.2
0
1.2
3.2 3.2
0
3.2
0
0 0
0
1.2
0
0
1.2
1.2
0
3.2
3.2
3.2
0
3.3
3.2
1.2
3.2
3.2
0
0
0 0 0
3.2 3.2 3.1 0.3
03
.2
3.2
0
3.2
4
.9
3.2
4
.8
3.1
4
.9
3.1
4.9
2.3
4.9
2.0
3
.3
2.4
3.3
0 3.2 3.2
0 0
3.2 3.2
5.1 4.9 3.3
0
4.9 4.9
4.9
4.9 4.9 4.7 -0.1
DIGITAL IN
ANALOG IN
ANALOG IN
100
5
1
2 3
4
DSP
DECODER
RAM FLASH ROM
No replacement part available.
サービス部品供給なし
U, C models
To DSP 1/3
To DSP 3/3
Y 4
B 2
GND 3
IC532, 533 : SN74AHCT1G32DCKR
Single 2-input positive-OR gate
Vcc 5 A 1
4B 13
4A 12
4Y 11
3B 10
3A 9
3Y 8
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
IC535 : SN74AHCT08PWR
Quadruple 2-input positive-AND gates
Vcc 14 1A 1
Y 4
B 2
GND 3
IC531 : SN74AHC1G08DCKR
2-input positive-AND gate
Vcc 5 A 1
IC539 : W9816G6CH-7
512k x 2 banks x 16 bits SDRAM
IC543, 545 : PQ200WNA1ZPH
Low power loss regulator
CLOCK
BUFFER
ADDRESS
BUFFER
CLK 35
18
CKE 34
A10 20
CS
17 RAS
16 CAS
15 WE
21 A0
〜
24 A3
27 A4
〜
32 A9
19 BA
2 DQ0
3 DQ1
5 DQ2
6 DQ3
8 DQ4
9 DQ5
11 DQ6
12 DQ7
39 DQ8
40 DQ9
42 DQ10
43 DQ11
45 DQ12
46 DQ13
48 DQ14
49 DQ15
14 LDQM
36 UDQM
COMMAND
DECODER
REFRESH
COUNTER
REFRESH
COUNTER DQ
BUFFER
COLUMN
COUNTER
MODE
REGISTER
CONTROL
SIGNAL
GENERATOR
CELL ARRAY
BANK #0
R
O
W
D
E
C
O
D
E
R
COLUMN DECODER
SENSE AMPLIFIER
CELL ARRAY
BANK #1
R
O
W
D
E
C
O
D
E
R
COLUMN DECODER
SENSE AMPLIFIER
1 DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
Vcc
OE
B1
B2
B3
B4
B5
B6
B7
B8
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
IC536 : SN74LV245APWR
Octal bus transceiver with 3-state outputs
Y 4
B 2
GND 3
IC537, 538 : SN74AHC1G08DCKR
2-input positive-AND gate
Vcc 5 A 1
IC541 : NJM2885DL1-25
Low dropout voltage regulator
Thermal
Protection
Bandgap
Reference
V
OUT
V
IN
GND
1 3
2
IC544 : NJM2885DL1-33
Low dropout voltage regulator
Thermal
Protection
Bandgap
Reference
V OUT V IN
GND
1 3
2
IC542 : R1172S121D-E2-F
V
DD
CE
Pin No.
1
2, 5
3
4
6
Symbol
V
OUT
GND
CE
NC
V
DD
Description
Output Pin of Voltage Regulator
Ground Pin
Chip Enable Pin
No Connection
Input Pin
Vref
Current Limit
V
OUT
GND
A15
A14
A13
A12
A11
A10
A9
A8
NC
NC
WE#
RESET#
NC
NC
RY/BY#
NC
A17
A7
A6
A5
A4
A3
A2
A1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24 A16
BYTE#
GND
Q15/A-1
Q7
Q14
Q6
Q13
Q5
Q12
Q4
VCC
Q11
Q3
Q10
Q2
Q9
Q1
Q8
Q0
OE#
GND
CE#
A0 48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
MX29LV400C T/B
CONTROL
INPUT
LOGIC
PROGRAM/ERASE
HIGH VOLTAGE
WRITE
STATE
MACHINE
(WSM)
STATE
REGISTER FLASH
ARRAY
X
-D
E
C
O
D
E
R
ADDRESS
LATCH
AND
BUFFER
Y-PASS GATE
Y
-DECODER
ARRAY
SOURCE
HV
COMMAND
DATA
DECODER
COMMAND
DATA LATCH
I/O BUFFER
PGM
DATA
HV
PROGRAM
DATA LATCH
SENSE
AMPLIFIER
Q0-Q15/A-1
A0-A17
CE#
OE#
WE#
RESET#
IC540 : MX29LV400CBTC-70G
4M-bit cmos single voltage 3V only flash memory
1 3
4
5
2
IC
DC output (Vo)
DC input (Vin)
ON/OFF control (Vc)
GND
DC output adjustment (Vadj)
to FL (5)_CB973
Page 124 J4
to FL (5)_CB959
Page 124 K4
to POWER (3)_CB17
Page 118 G6
to NET_W605
Page 125 H8
to POWER (3)_CB16
Page 118 G6