Casio PX-720 User Manual

– 2 –
BLOCK AND WIRING DIAGRAM
RAM (64Mbit)
IC2
Reset IC
IC1
RESET
12MHz
SAD0 ~ SAD12,
SDBA0,SDBA1
SDD0 ~ SDD15
D8 ~ MD15
Power Amplifier
IC201
Filter
IC205
FLASH (128Mbit)
IC6
ROM (16Mbit)
IC7
A1 ~ A20
D0 ~ D15
MA0 ~ MA3
MD0 ~ MD15
KEY CONTROLLER
IC11
Keyboard
Power Supply Circuit
IC202,Q206,Q207
(12V)
VA12
(5V)
VD5
(5V)
VE5
(12V)
VC
Speakers
(L) (R)
Main
Volume
CONSOLE PCB
(M681-CNA1)
CONSOLE PCB
(M406-CNA4)
Keyboard PCBs
(MCPZ-KYA1/KYB2/KYA3)
SUB PCB
(M408-PSA1)
CONSOLE PCB (M681-CNA3)
CONSOLE PCB
(M681-CNA2)
MAIN PCB (M408-MDA1)
Buttons
SI0 ~ SI10 FI0 ~ FI10
LOUT ROUT
KC0 ~ KC7
MPU
IC5
Control signal
Power
Switch
DAC
IC10
CN9CN13CN2
CN601CN211
CN605
CN14
CN602
CN206
CN203
CN207
CN603
CN15
CN604
CN607
CN606 CN201
CN209
CN204

Casio PX-720 Specifications

General

Brand	Casio
Model	PX-720
Category	Musical Instrument
Language	English