Epson LQ-670 Service Manual page 121

Appendix
Pin
1
2
Pin
1
2
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
A-4
Table A-11. Connector Pin Assignment-CN13
I/O Signal Name
I PE[REAR]
--- GND
Table A-12. Connector Pin Assignment-CN14
I/O Signal Name
I PE[FRONT]
--- GND
Table A-13. Connector Pin Assignment-CN15
I/O Signal Name
--- ---
O LED9
O LED2
O LED3
O LED5
O LED4
O LED8
O LED7
O LED6
--- +5V
I SW4
I SW3
I SW5
--- ---
--- ---
I SW1
I SW0
I COPEN
I SW2
I PSC
O LED1
O LED0
Function
(Rear) PE detector signal
GND
Function
(Front) PE detector signal
GND
Function
GND
LED 9 drive signal
LED 2 drive signal
LED 3 drive signal
LED 5 drive signal
LED 4 drive signal
LED 8 drive signal
LED 7 drive signal
LED 6 drive signal
+5VDC
SW4 signal
SW3 signal
SW5 signal
GND
GND
SW1 signal
SW0 signal
---
SW2 signal
Power On signal
LED 1 drive signal
LED 0 drive signal
Rev. A