Block Diagram - Casio AP-10 Service Manual

Sound Source ROM
(8M-bit)
LSI303
MX23C8100MC-
12CA27
MA0, MA1
EA0 ~
Effect RAM
EA14
(256K-bit)
LSI305
LC333832M-70 EIO0 ~
EIO7
Output
Speakers

BLOCK DIAGRAM

Working Storage
RAM (64K-bit)
LSI304
LC3564SM-85
MA0 MD0
~ ~
MA12 MD7
MD0 ~ MD15
MA1 ~ MA19
DSP
LSI302
HG51B227FB
LRCK SO
D/A Converter
LSI306
UPD6379GR
Filter
IC104
Main
Volume
Line Out Amp.
IC102
Power Amplifer
IC101
LA4620
MIDI
OUT IN
KI0 ~ KI2
CPU
LSI301
UPD912GF-3BA
BCK, SO, LRCK
HALL
STAGE
ROOM
SONGA
BCK
SONGB
MEMORY
5V
LVDD
5V
VDD
Regulator
12.5V
Q101 ~ 106,
AVCC
5V
and Q111
AVDD
LINE OUT L
LINE OUT R
— 4 —
Buttons
FI0 ~ FI10
SI0 ~ SI19
Keyboard
KC0 ~ KC7
Reset IC
RN5VD24AA
LEDs
VDD
Voltage Power Switch
T101
Transformer
IC 302