Epson LQ 300 - Page 105

LQ-300 Service Manual
Appendix
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Table A-5. Connector Pin Assignments - CN5
I/o
o
0
0
0
0
—
—
—
o
0
0
0
0
0
0
Signai Name
HD 3
HD 11
HD 2
HD 19
HD 7
HDCOM
HDCOM
HDCOM
HD 22
HD 15
HD 18
HD 23
HD 10
HD 14
HD 6
Function
Head data 3
Head data 11
Head data 2
Head data 19
Head data 7
Common (VP)
Common (VP)
Common (VP)
Head data 22
Head data 15
Head data 18
Head data 23
Head data 10
Head data 14
Head data 6
Table A-6. Connector Pin Assignments - CN6
l(o
o
0
0
0
0
0
—
—
—
o
0
0
0
0
0
i
I
Signai Name
Function
HD 5
Head data 5
HD 1
HD 5
HD 3
HD 21
HD 17
HDCOM
HDCOM
HDCOM
HD 24
HD 9
HD 12
HD 8
HD 20
HD 4
TEMP2
Head data 1
Head data 5
Head data 3
Head data 21
Head data 17
Common (VP)
Common (VP)
Common (VP)
Head data 24
Head data 9
Head data 12
Head data 8
Head data 20
Head data 4
Head temperature
TEMP1 I Head temperature
Table A-7. Connector Pin Assignments - CN7
Pin I/o
Signai Name
Function
1
i
PE PE sensor signal
2
— GND Signal ground
Table A-8. Connector Pin Assignments - cN8
Pin
I/o Signai Name
Function
1 I
HP Carriage home position sensor signal
2 —
GND
Signal ground
Rev.A
A-3