Yamaha AP-U70 Manual de servicio - Página 32

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Yamaha AP-U70 Manual de servicio
A
B
AP-U70
I

IC BLOCK

1
IC432 : MSM514260C-60JS
262,144-word x 16 bit Dynamic RAM
VCC
1
40
VSS
TIMING
RAS
GENERATOR
DQ1
2
39
DQ16
DQ2
3
38
DQ15
LCAS
DQ3
4
37
DQ14
UCAS
DQ4
DQ13
5
36
VCC
6
35
VSS
DQ5
7
34
DQ12
COLUMN
DQ6
8
33
DQ11
9
ADDRESS
DQ7
DQ10
BUFFERS
9
32
DQ8
10
31
DQ9
NC
11
30
NC
INTERNAL
NC
12
29
LCAS
A0~A8
ADDRESS
COUNTER
WE
UCAS
13
28
RAS
14
27
OE
NC
15
26
A8
ROW
A0
16
25
A7
9
ADDRESS
BUFFERS
2
A1
17
24
A6
A2
A5
18
23
VCC
A3
19
22
A4
VCC
20
21
VSS
ON CHIP
VBB GENERATOR
VSS
IC438 : MBM29F400BC-55
4M Bit Flash Memory
VCC
RY/BY
A15
1
48
A16
BUFFER
VSS
A14
2
47
/BYTE
A13
VSS
3
46
A12
4
45
DQ15
WE
A11
5
44
DQ17
BYTE
3
A10
6
43
DQ14
RESET
CONTROL
A9
7
42
DQ6
CIRCUIT
A8
DQ13
8
41
(COMMAND REGISTER)
NC
9
40
DQ5
NC
10
39
DQ12
/WE
11
38
DQ4
/RESET
12
37
VCC
CE
NC
13
36
DQ11
OE
NC
14
35
DQ3
RY/BY
15
34
DQ10
NC
16
33
DQ2
A17
17
32
DQ9
A7
18
31
DQ1
A6
19
30
DQ8
A5
20
29
DQ0
A4
/OE
21
28
A3
22
27
VSS
LOW VCC DETECT
A2
23
26
/CE
A1
24
25
A0
A0~A17
A-1
4
IC447 : M5M51008CFP-70H
131, 72-word X 8 bit Static RAM
NC
1
32
VCC
A4
8
A16
A15
2
31
A5
7
A6
6
A14
3
30
S2
A7
5
A12
4
29
W
A12
4
A7
5
28
A13
A14
3
A16
2
A6
6
27
A8
A15
31
A5
7
26
A9
A13
28
A8
27
A4
8
25
A11
A3
9
24
OE
5
A2
10
23
A10
A0
12
A1
S1
A2
10
11
22
A3
9
A0
12
21
DQ8
A10
23
DQ1
13
20
DQ7
DQ2
14
19
DQ6
A1
11
DQ3
15
18
DQ5
A11
25
GND
16
17
DQ4
A9
26
E-36/J-34
6
C
WE
OE
I/O
CONTROLLER
OUTPUT
8
8
I/O
BUFFERS
CONTROLLER
DQ1~DQ8
COLUMN
INPUT
9
DECODERS
8
8
BUFFERS
SENSE
I/O
16
16
REFRESH
AMPLIFIERS
SELECTOR
CONTROL CLOCK
INPUT
8
8
BUFFERS
WORD
MEMORY
ROW
9
DQ9~DQ16
DECODERS
DRIVERS
CELLS
OUTPUT
8
8
BUFFERS
DQ0~DQ15
RY/BY
ERASE CIRCUIT
I/O BUFFER
WRITE CIRCUIT
STB
CHIP ENABLE
DATA LATCH
OUTPUT ENABLE
CIRCUIT
Y DECODER
Y GATE
STB
WRITE/ERASE
4,194,304
PULSE TIMER
X DECODER
CELL
MATRIX
13
DQ1
14
DQ2
15
DQ3
131072 WORD X 8BIT
17
DQ4
RAM
18
DQ5
19
DQ6
20
DQ7
21
DQ8
CLOCK
GENERATOR
29
W
22
S1
30
S2
24
OE
32
V
CC
16
GND(OV)
D
E
IC477 : CS5360-KSR
24-Bit A/D Converter
18
7
8
12
2 10 20 19
CMOUT
15
VOLTAGE
SERIAL OUTPUT
REFERENCE
INTERFACE
S/H
COMPARATOR
AINL –
16
+
LP FILTER
+
DIGITAL
HIGH
AINL +
17
–
–
DECIMATION
PASS
FILTER
FILTER
DAC
S/H
COMPARATOR
AINR –
14
DIGITAL
HIGH
+
LP FILTER
+
DECIMATION
PASS
AINR +
13
–
FILTER
FILTER
–
DAC
3
4
6
5
11
1
IC474 : LC75342M-TLM
Input Selctor & Electric Controlled
Volume
4
3
2
1
30
29
28
27
LOUT
5
–
+
+
–
–
+
+
–
LBASS2
6
–
+
+
–
LBASS1
7
–
+
+
–
LTRE
8
LIN
9
LSELO
10
–
+
+
–
11
12
13
14
15
16
17
18
19
20
E-37/J-35
F
G
IC439, 440 : AD1854JSRSRL
24-Bit, 96kHz, Multibit Sigma-Delta D/A Converter
DGND
1
MCLK
2
CLATCH
3
CCLK
4
9
SDATA
CDATA
5
384/256
6
X2MCLK
7
ZEROR
8
DEEMP
9
96/48
10
AGND
11
OUTR+
12
OUTR–
13
FILTR
14
VOLUME
MUTE
SERIAL CONTROL
ATTEN/
8 x FS
MUTE
INTERPOLATOR
SERIA
16-/18-/20-/24-BIT
DATA
DIGITAL DATA
INTERFACE
INPUT
ATTEN/
8 x FS
MUTE
INTERPOLATOR
SERIAL
2
MODE
PD/RST
MUTE
26
ROUT
25
RBASS2
24
RBASS1
23
RTRE
22
RIN
21
RSELO
H
28
DVDD
27
SDATA
SCLK
26
25
L/RCLK
24
PD/RST
23
MUTE
22
ZEROL
21
IDPM0
20
IDPM1
19
FILTB
18
AVDD
17
OUTL+
16
OUTL–
AGND
15
CONTROL
DIGITAL
CLOCK
96/48FS
DATA INPUT
SUPPLY
IN
CLOCK
3
2
VOLTAGE
CLOCK
INTERFACE
REFERENCE
CIRCUIT
MULTIBIT SIGMA-
OUTPUT
DAC
DELTA MODULATOR
BUFFER
ANALOG
OUTPUTS
MULTIBIT SIGMA-
OUTPUT
DAC
DELTA MODULATOR
BUFFER
2
2
DEEMPHASIS
ANALOG
ZERO
SUPPLY
FLAG