Epson STYLUS COLOR 3000 Service Manual page 163

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

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