Epson Stylus Color 640 Service Manual page 80

EPSON Stylus Color 440/640/740
Chapter 2 Operating Principles
E05B588(IC2)
193
CRIA0
194
CRIA1
195
CRIA2
196
CRIA3
200
CRIB0
199
CRIB1
198
CRIB2
197
CRIB3
191
CRPHAA
202
CRPHAB
192
CRENBA
201
CRENBB
C90A05
2 -
(IC1)
1
111
3
+
DA0
Current
Detection
M6252(IC15)
Figure 2-40. Carriage Motor Drive Circuit for Stylus Color 740
LB1847(IC11)
25
IA1
24
IA2
23
IA3
22
IA4
18
IB1
OUTA
19
IB2
OUTA-
20
IB3
21
IB4
27
PHASE1 OUTB
16
PHASE2 OUTB-
26
ENBL1
17
ENBL2
2
Vref1
13
Vref2
CN7
1
A
3
/A
Rotor
2
B
4
/B
7
6
9
8
Revision A
80