Yamaha DPX-530, Руководство по обслуживанию

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DPX-530
DPX-1200DPX-530
IC472 CAT24WC128J
XDEC
EEPROM
(256x512)
256
512
&
5
7
6
1
2
3
SDA
WP
SCL
Vcc
Vss
8
4
NC
NC
NC
Start/Stop
Logic
Word Address Buffers
Control Logic
Dout ACK
(Open drain)
Column Decorders
Sense Amps
Shift Registers
Data In Storage
High Voltage
Timing Control
State Counters
Function Ta ble
H= HIGH Logic Level
L= LOW Logic Level
Inputs Output
B Y
L
L
L
L L
H H
A
B
GND
Y
Vcc
H
A
L
H
H
L
1
2
3
5
4
IC471 NC7SZ08P5X
PCB-MAIN(3/3)
Function Table
H: HIGH Logic Level
L: LO W Logic Level
Inpu t (S) Fun ct ion
B
0
Connected to A
B
1
Connected to A
B1
GND
B0 A
Vcc
S
H
L
1
2
3 4
5
6
IC473,IC474 NC7SB3157P6X