Epson Stylus 820 Service Manual page 106

Appendix
Table A-6. Connector Pin Assignments — CN5
Pin I/O
1 O
2 O
3 O
4 O
Table A-7. Connector Pin Assignments — CN6
Pin I/O
1 I
2 —
3 I
4 —
5 I
Table A-8. Connector Pin Assignments — CN7
Pin I/O
1 I
2 —
Table A-9. Connector Pin Assignments — CN8
Pin I/O
1 I
2 —
3 O
Table A-10. Connector Pin Assignments — CN9
Pin I/O
1 I
2 —
A-4
Name
PFA Bi-poler drive phase A
PF-A Bi-poler drive phase -A
CRB Bi-poler drive phase B
CR-B Bi-poler drive phase -B
Name
+42VDC Power voltage supply from power supply board
GND Ground
+5VDC Logic voltage suupply from power supply board
GND Ground
+42VDC Power voltage supply from power supply board
Name
PE Paper in/out state detection signal
GND Ground
Name
HP Home position detection signal
GND Ground
HPV Sensor drive power supply
Name
ASF Paper Select lever position sensor
GND Ground
Stylus Color IIs / Stylus 820
Description
Description
Description
Description
Description
Rev. A