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Casio ap-21 User Manual

Casio ap-21
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— 3 —
BLOCK DIAGRAM
Keyboard
Pedal
unit
FI0~FI10
SI0~SI10
L1~L18
KI0
KI3
KC0~
KC7
Mute signal
D0~D7
SOLP
SORP
Reset signal
VDD (+5V)
AVDD (+5V)
AVCC (+15V)
AVFF (-15V)
Mute signal
IC 408
IC 411
Main
volume
BOK, WOK1
SOLM
SOLM
RD0~RD15
RA0~RA22
ED0~
ED15
EA0~
EA14
A0~A14
A0~A16
MIDI
OUT IN THROUGH
Damper
SS
SF
P10, P12~P16,
P93, P94, P97
P70~P77
P12~P14
BRILLIANCE
Key touch LSI
LSI 10
HG52E35P
CPU
LSI 1
HD6435328RC13F
LSI-S
LSI 7
HG51B155FD-1
LSI4,5
UPD6376GS-E1
DAC
DAC
LPF
LPF
MIXER
IC 406
Reset IC
IC 5
Power supply
circuit
Power
amp.
IC 405
Sound Source Rom
(3M-bit)
LSI 6
MX23C2410MC-12CA58
System ROM
LSI 2
2M-bit
LH532KU3
Effector RAM
256K-bit
LSI 8, 9
TC55257DFL-70L
Working strage
LSI 3
SRAM 256K-bit
TC55257DFL-70L
LEDS
Console
Gate array
LSI 301
UPD65005GF
-419
~
KC0
KC4
~

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Casio ap-21 Specifications

General IconGeneral
BrandCasio
Modelap-21
CategoryElectronic Keyboard
LanguageEnglish

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