Epson Stylus Color 1520 Service Manual page 145

Pin No. I/O
1 I

2

3
4 O

5
6 O

7
8 O

9
10 O

11
12 O

13

14

15

16

17
18 O
19 O
20 O

21

22
Pin No. I/O
1 O
2 O
3 O
4 O

5
Pin No. I/O
1 O
2 O
3 O
4 O
Table A-11. Connector Pin Assignments (CN13)
Signal Name Description
BCO Cartridge sensor signal
GND Ground
GND Ground
BLAT Latch signal
GND Ground
BSI 2 Data
GND Ground
BSI 1 Data
GND Ground
BHCLK Clock signal
GND Ground
BHNCHG NCHG signal
GND Ground
+ 5 Power source
GND Ground
GND Ground
GND Ground
COM Common output
COM Common output
COM Common output
VHPR Drive voltage
VHPR Drive voltage
Table A-12. Connector Pin Assignments (CN14)
Signal Name Description
A Phase A output
/ A Phase / A output
B Phase B output
/ B Phase / B output
+42 Drive signal
Table A-13. Connector Pin Assignments (CN15)
Signal Name Description
A Phase A output
B Phase B output
/ A Phase / A output
/ B Phase / B output
Appendix
A-5