Epson Stylus COLOR 3000

Appendix
EPSON Stylus Color 3000 Service Manual
A-7
Pin No. I/O Signal Name Description
1

BCO

2 I THS Thermistor signal
3

GND Ground
4 O BHLAT Latch signal
5

GND Ground
6 O BSI 2 Data
7

GND Ground
8 O BSI 1 Data
9

GND Ground
10 O BHCLK Clock signal
11

GND Ground
12 O BHNCHG NCHG signal
13

GND Ground
14

+ 5 Power source
15

GND Ground
16

GND Ground
17

GND Ground
18 O COM Common output
19 O COM Common output
20 O COM Common output
21

VHPR Drive voltage
22

VHPR Drive voltage
23

NC

24 I CR_PW CR PW sensor signal
25

GND Ground
26

+ 5 Power source
Pin No. I/O Signal Name Description
1 O A Phase A output
2 O / A Phase/ A output
3 O B Phase B output
4 O / B Phase / B output
Pin No. I/O Signal Name Description
1 O A Phase A output
2 O / A Phase / A output
3 O B Phase B output
4 O / B Phase / B output
Table A-18. Connector Pin Assignments (CN21)
Table A-19. Connector Pin Assignments (CN22)
Table A-20. Connector Pin Assignments (CN23)