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BLOCK DIAGRAM
KC0 ~ KC7
FI0 ~ FI10
SI0 ~ SI19
Working Storage
RAM (64K-bit)
LSI103
SRM2264LM90
MIDI
EA0 ~
EA12
EIO0 ~
EIO7
Sound Source ROM
(16M-bit)
LSI104
MX23C1610MC-
12CA20
LRCK SO BCK
D/A Converter
IC102
UPD6379GR
Filter
Q108, Q109
Q119, Q120
Main
Volume
Power Amplifier
IC101
LA4598
LED driver
IC103
BA612
Keyboard
MA0 ~ MA19
Power Supply Circuit
Q101 ~ Q106
D101, D103, D104
VCC
AVDD
VDD
LVDD
DVDD
VC
APO
Effect RAM
(64K-bit)
LSI102
SRM2264LM90
MD0
~
MD7
Speakers
Output
MA0
~
MA12
MA0, MA1
LEDs /
7Seg. LED
LED driver
Q110 ~ Q117
La ~ Lg, Lp
INOUT
Reset IC
IC105
RE5VA35AA
RESET
LC0 ~ LC4
Buttons
VDD
Power Switch
PA0 ~ PA7
PB0 ~ PB4
CPU
LSI105
UPD912GF-3BA
BCK, SO, LRCK
DSP
LSI101
HG51B227FB
FI8 ~ FI10, SI8
KI0 ~ KI2
MD0 ~ MD15