Casio GZ-500 Electronic Keyboard User Manual


 
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BLOCK DIAGRAM
KC0 ~
KC7
SI0 ~ SI7
FI0 ~ FI7
Key Controller
LSI107
HG52E35P
Working Storage RAM
(64K-bit)
LSI105
SRM2264LM90-B
KO1 ~ KO3
LED driver
IC371
BA612
LS0 ~
LS7
Buttons
KI1 ~ KI5
Power Switch
IN
EA0 ~ EA14
ED0 ~ ED7
DSP
LSI102
HG51B115FD
RA0 ~ RA19
RD0 ~ RD15
Sound Source ROM
(16M-bit)
LSI101
TC5316200CF-C112
WCK1 SLOP BCK
D/A Converter
LSI104
UPD6376GS
Filter
IC101
Main
Volume
Power Amplifier
IC402
LA4598
CPU
LSI106
HD6433298A42F
Keyboard
A0 ~ A14
POWER
Power Supply Circuit
IC401, Q401 ~ Q405
VCC
AVDD
VDD
LVDD
DVDD
VC
Effect RAM
(256K-bit)
LSI103
LC33832M-70
D0~D7
Speakers
Output
A0 ~
A14
A0 ~ A3
A0 ~ A2
7-seg. LED
LEDs
LED driver
Q104 ~ Q111
KO Signal
Generator IC102
TC74HC174AF
La ~ Lg, Lp
MIDI
OUT
Reset IC
IC5
RH5VL36AA
P40
P41
KO0 ~
KO5
Filter
IC101
RESET