Casio CTK-800 User Manual

— 3 —
BLOCK DIAGRAM
RS
R/W
E
LDB4 ~ 7
Keyboard
MAIN PCB
(M706-MDA1)
CONSOLE PCB
(M706-CNA2)
Speakers
(L)
(R)
Main
Volume
CONSOLE PCB
(
M706-CNA1)
SUB PCB
( M706-PSA1)
AC ADAPTOR
DC 9V
MPU
ML6763B-NNWA-116
IC4
Filter
NJM2068DD
IC3
Power AMP
LA4598-E
IC2
ROM(4MB)
MR27V3202F-TN
IC11
RAM(1M bit)
CY62126DV30LL55ZI
IC12
Phones/
Output
CONSOLE PCB
(M06-CNA3)
Mic Volume
Filter
NJM2068DD
IC1
74AHCT
IC5, 6
MIC
LCD Controller
ST7066U
IC1
Power Supply
Q2 ~ Q4
D4
VD5
(5.3V)
Battery
VC
(9.0V)
VCP
(9.0V)
VA5
(5.3V)
Button
MD0 ~ 15
MD0 ~ 15
MA1 ~ 16
MA1 ~ 17
KC0 ~ 7
FI0 ~ 3, SI0 ~ 3 FI4 ~ 7, SI4 ~ 7
Keyboard PCB
(JCM618T-KY1M)
Keyboard PCB
(JCM618T-KY2M)
FI8 ~ 10, KI0 ~ 2
KC0 ~ 7
D1

Casio CTK-800 Specifications

General

Display	LCD
Keyboard	61 keys
Songs	100 songs
MIDI	Yes
Power Supply	AC adapter or batteries
Speakers	2 x 2.5W
Effects	Reverb
Connections	Headphones, MIDI Out, Sustain Pedal
Polyphony	32 notes