Casio CTK-330 - Block Diagram

— 3 —
CPU
MSM 6755B-08
LSI101
Keyboard
Buttons
LED
Reset IC
IC102
Oscillator
X101, Q107
Q111
Power Supply Circuit
Q101 ~ Q104, D106
Power Amp.
LA4598
IC101
Filter (L)
Q105
Filter (R)
Q106
Output
DC+9V IN
VC  AVDD DVDD LVDD
APO
CC1 ~ CC3
La ~ Lg,
Lp
KO8 ~
KO11
KI0 ~ KI7
KO0 ~ KO7
BLOCK DIAGRAM