— 5 —
BLOCK DIAGRAM
SOLM, SOLP
BDK, WOK1, SORM, SORP
FI0 ~ 10
SI0 ~ 10
DSP
HG51B155FD
RAM
256K
TC55257DFL-
70L
ROM
8M
MX23C8000MC-
12CA73
CPU
HD6435328RF35F
PEDAL
MIDI
IN
OUT
ROM
24M
MX23C2410MC-
12CA58
RAM
256K
×
2
TC55257DFL-
70L
×
2
Keyboard
Controller
HG52E35P
Switch & LED
Controller
µ
PD65005GF-419
D/A Converter
µ
PD6376GS
D/A Converter
µ
PD6376GS
Filter
Mixer, Mute Circuit
Power Amp.
STK4132MK
RA0 ~ 22
RD0 ~ 15
EA0 ~ 14
ED0 ~ 15
D0 ~ 7
D0 ~ 7
L18 ~ 28
KI0 ~ 3
LA ~ LG, LP
LK8 ~ 14
LEDs
Buttons
Keyboard
KC0 ~ 7
Main
Volume
AVCC
AVDD
AVFF
VDD
+15V
+5V
–15V
+5V
Power Switch
Power
Transformer
T101
Reset IC
MB3771PF
RST
MUTE
BRILLIANCE
M-IN
M-OUT
PB4 ~ 6
Filter
LINE IN
Tweeter
Tweeter
HEADPHONE
SP
SP
LINE OUT
P70 ~
P77
P12 ~
P14
NJM78M78M15FA
NJM78L05A
NJM7805FA
A0 ~ 14
A0 ~ 19
Voltage
selector
Summary of Contents for Celviano AP-22S
Page 1: ...ELECTRONIC KEYBOARD AP 22S...
Page 21: ...21 35 34 R 9 R 8 R 7 STAND...
Page 27: ...27 8 Switch LED Controller 7 6 Console PCBs JCM434 CN1M...
Page 28: ...28 Console PCBs JCM434 CN2M...
Page 29: ...29 Keyboard PCB TP20 KY 1...
Page 30: ...30 Keyboard PCB TP20 KY 2...
Page 31: ......
