
— 2 —
BLOCK DIAGRAM
CPU
MSM 6755B-17
LSI2
Keyboard
Buttons
LCD
LCD Driver
SED1278F0A
LSI3
Reset IC
IC1
Oscillator
X1, Q1
Power Supply Circuit
Q201 ~ Q203, Q208, D205
Power Amp.
TA8248K
IC201
Filter (L)
Q206
Filter (R)
Q205
Output
VC VCC DVDD
APO
DC + 9V IN
DB4 ~ DB7
MIDI IN
MIDI OUT
COM1 ~ COM16
SEG1 ~ SEG40
RS
R/W
E
KO8 ~
KO12
KI0 ~ KI6
KO0 ~ KO7
MD0 ~ MD7
MA0 ~ MA18
ROM(2M-bit)
LC372100PM-
G48
LSI1
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