Epson Stylus Color 660 Service Manual page 115

EPSON Stylus Color 440/640/740
Chapter 2 Operating Principles
8
PFIA0
9
PFIA1
10
PFIA2
11
PFPHAA
4
PFIB0
5
PFIB1
6
PFIB2
7
PFPHAB
E05B588(IC2)
C90A05
(IC1)
6 -
7
112
5
+
DA1
Current
Detection
M6252(IC16)
Figure 2-37. PF (Pump) Motor Drive Circuit for Stylus Color 740
A3956(IC13)
14
D0
9
D1
8
D2
7
PHASE
2
REF
+5
1
PFD
A3956(IC13)
14
D0
9
D1
8
D2
7
PHASE
2
REF
1
PFD
CN8
1
A
3
/A
Rotor
2
B
4
/B
10
OUTA
15
OUTB
VBB
VCC
10
OUTA
15
OUTB
VBB
VCC
Revision A
77