Casio GZ-500 manual GND4, Block diagram of DSP and DAC circuit

Page 13

Pin No.

Terminal

In/Out

 

 

Function

 

 

 

 

 

 

 

 

 

 

 

 

106

EOEB

 

Out

 

Read enable signal output for the effect RAM

 

 

 

 

 

 

 

 

 

 

 

 

108

VCC7

 

 

In

 

+5V source

 

 

 

 

 

 

 

 

 

 

 

 

111

ECEB

 

Out

 

Chip select signal output for the effect RAM

 

 

 

 

 

 

 

 

 

 

 

 

113 ~ 117

ED11 ~ ED15

 

 

 

 

 

 

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

118

VCC4

 

 

In

 

+5V source

 

 

 

 

 

 

 

 

 

 

 

 

119

GND4

 

 

In

 

Ground (0V) source

 

 

 

 

 

 

 

 

 

 

 

 

120 ~ 122

ED8 ~ ED10

 

 

 

 

 

 

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

123 ~ 130

ED0 ~ ED7

In/Out

 

Data bus for the effect RAM

 

 

 

 

 

 

 

 

 

 

 

 

131

GND5

 

 

In

 

Ground (0V) source

 

 

 

 

 

 

 

 

 

 

 

 

132 ~ 134

 

 

 

 

 

 

 

 

 

Not used. Connected to ground.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

135, 136

 

 

 

 

 

 

 

 

 

Not used

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Block diagram of DSP and DAC circuit

D0 ~ D7

A0 ~ A3

A12

A14

RD

APO

WR

RESET

Sound Source ROM

LSI101

TC5316200CF-C112

 

CE A0 ~ A19

D0 ~ D15

RA22

RA0 ~

RD0 ~

RA19

RD15

 

 

 

 

 

DSP

 

CCSB

LSI102

 

 

 

 

CRDB

HG51B155FD

 

 

 

 

CWRB

 

 

 

RESB

 

 

 

ECEB EOEB EWEB

 

CS OE WE

ED0 ~

EA0 ~

ED15

EA14

 

 

 

 

 

 

 

 

 

 

 

D0 ~ D15

A0 ~ A14

 

 

Effect RAM (256K-bit)

 

 

 

LSI103

 

 

 

LC33832M-70

 

 

 

 

 

 

SOLP: Sound data

BOK: Bit clock

WOK1: Word clock

 

DAC

 

SOLP

SI LSI104

ROUT

BOK

CLK

 

 

 

WOK1

LRCK

LOUT

 

 

 

UPD6376GS

 

 

 

 

PG

X101

24.576 MHz

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Image 13
Contents GZ-500 Specifications ContentsSetting Setting operation Setting UP the KeyboardInitial settings OperationMidi Message Setting Setting operation Initial settings in The General Midi systemTransmitting Midi Messages Selecting a Midi channel 1. Press the Midi button Setting on/off of a Midi channel Initial settings of Midi control changeReceiving Midi Messages Transmitting a digital effect typeReceivable Messages Transmittable MessagesKC7 Block DiagramKEY Matrix Circuit DescriptionReset Circuit Power Supply CircuitButton Matrix Name Voltage For operationPin No Terminal In/Out Function Digital Signal Processor LSI102 HG51B155FDCE1, Trsb GND4 Block diagram of DSP and DAC circuitKEY Controller LSI107 HG52E35P DAC LSI104 UPD6376GSFilter Block LED Driving Power Amplifier IC402 LA4598Major Waveforms Schematic Diagrams Main PCB JCM715-MA1M Console PCBs JCM715-CN1M/2M/3M Keyboard PCBs M616T-KY1M/KY2M Exploded View Parts List Amp./Volume PCBs FOB Japan Code No Parts Name Specification Yen Unit Price MA0800751A