Ic Block - Yamaha AP-U70 Service Manual

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