Epson LX-810

REV.-A
2.2.3.3 Carriage Drive Circuit Block Diagram
Figure 2-25
shows a block diagram of the carriage motor drive circuit. In this circuit, the phase switching
for the carriage motor is directly executed not by the CPU, but by the gate array (3 B), which acts on
the
CPU
t PD78 10HG
(2C)
CPU phase da
Data
-
. SLA702(
GA
E05A30
(3B)
vl drives the carriage motor with a stabilized current.
n
SLA
7020M
( 1A)
Phase
Data~
‘o
M
Figure 2-25. Carriage Drive Circuit Block Diagram