Epson Stylus COLOR 440 Service Manual page 74

EPSON Stylus COLOR 440, 640, and 740
E05B43
(IC2)
CRA0
CRA1
CRA0
CRB1
CRAPH
CRBPH
MTBV0
MTBV1
MTBV2
MTBV3
MTBV4
MTAV0
MABV1
MTAV2
MTAV3
MTAV4
75
76
75
73
77
74
60
61
62
63
64
+5
65
66
67
70
71
+5
Figure 2-39. Carriage Motor Drive Circuit for Stylus COLOR 640
UDN2917
CN5
(IC15)
A
2 6
I10
Out1A
3
1
I11
Out1B
/A
18
23
Out2A
I20
21
24
I21
Out2B
43
PH1
B
26
PH2
/B
44
Vref1
25
Vref2
Chapter 2 Operating Principles
1
3
Rotor
2
4
65