Yamaha Disklavier Silent Series Manuale di servizio - Pagina 10

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LSI PIN DESCRIPTION

• HD6473308F10 (XQ458A00) CPU (H8/330)

Reset

XTAL

Clock

EXTAL

MD1

Mode select

MD0

Non-maskable interupt

stand-by mode signal

Power supply

VCC

P52

Port 5

A R x D

A T x D

(Transmit data)

Ground

VSS

P97

P96

(Address strobe)

(Write strobe)

(Read strobe)

P92

P91

Port 9

P90

P60

P61

P62

P63

Port 6

P64

P65

P66

P67

AVCC

Analog power supply

AN0

AN1

AN2

Analog input

AN3

AN4

AN5

AN6

AN7

AVSS

Analog ground

P40

Port 4

P41

• PCM1702U (XP551A00) DAC (Digital to Analog Converter)

Data input

DATA

CLK

Clock

+ Vdd

Power supply ( + 5A)

D GND

Digital ground

-Vdd

Power supply ( - 5A)

L.E

Latch enable

Function

FUNCTION

Function

Port 4

Power supply

Address bus

Ground

Address bus

Data bus

Ground

Port 8

Power supply ( + 5A)

Bipolar decouple

Output current

Analog ground

Servo decouple

Reference decouple

Power supply ( - 5A)

MPX100II