Block Diagram - Casio CTK-450 Service Manual

BLOCK DIAGRAM

Reset IC
S-8053ANO
Output Jack
KO0~KO14
Main Volume
Amplifier Filter
LA4598 T4/T5
Speaker
Mute Circuit
CPU
M5218APR
T6
KI0~KI7
MSM6567-15
Keyboard
VCC +9V VDD +5V
AVDD +5V
LEDX6
(APO)
Power Supply Circuit
T1/T2/T3
Switches
Oscillator