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MIDI
IN
OUT
Keyboard
FI0 ~ FI7
KC0 ~
SI0 ~ SI7
KC7
Key Controller
LSI107
HG52E35P
Effect RAM
EA0 ~ EA14
(256K-bit)
LSI103
LC33832M-70
ED0 ~ ED7
Output
Speakers
BLOCK DIAGRAM
LED driver
Q104 ~ Q111
La ~ Lg, Lp
LS0 ~
LS7
CPU
LSI14
HD6433294A19F
A0 ~
A14
D0~D7
A0 ~ A14
A0 ~ A2
A0 ~ A3
DSP
LSI102
HG51B115FD
WCK1
SLOP
D/A Converter
LSI104
UPD6376GS
Filter
Filter
IC101
IC101
Main
Volume
Power Amplifier
IC402
LA4598
— 4 —
LED driver
7-seg. LED
LEDs
P41
KO Signal
Generator IC102
P40
TC74HC174AF
KI1 ~ KI5
POWER
Reset IC
IC5
RESET
RH5VL36AA
Working Storage RAM
(64K-bit)
LSI105
SRM2264LM90-B
RA0 ~ RA19
Sound Source ROM
TC5316200CF-C112
RD0 ~ RD15
BCK
LVDD
VC
VCC
Power Supply Circuit
IC401, Q401 ~ Q405
IC371
BA612
KO1 ~ KO3
KO0 ~
Buttons
KO5
Power Switch
(16M-bit)
LSI101
DVDD
AVDD
VDD
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