Block Diagram - Casio KL-1500 Service Manual And Parts List

BLOCK DIAGRAM

LCD driver
HD44105H
COMMON
Keyboard
ROM
TC531001CF-15
RAM
CXK5864CM-10LL
LCD 49 X 32
CD427-TS
LCD driver
HD44102CH
SEGMENT
CPU
T6C37
VCON
TCON
BT X 6
Figure-3
— 3 —
Comparator
BA10339F-T1
Chassis unit
Motor
driver
BA12003
Reset IC
RH5VL45AA-T1
VDD1
( +5V for digital circuit)
VP
(+9V for printer)
VDD2
Q3 / Q4
Q1 / Q2
POWER SUPPLY
Thermal
Head
(+5V for RAM)
IC5