Appendix
Rev. A
A-4
Pin
I/O
Signal Name
Function
1
I
PE[REAR]
(Rear) PE detector signal
2
---
GND
GND
Pin
I/O
Signal Name
Function
1
I
PE[FRONT]
(Front) PE detector signal
2
---
GND
GND
Pin
I/O
Signal Name
Function
1
---
---
GND
2
O
LED9
LED 9 drive signal
3
O
LED2
LED 2 drive signal
4
O
LED3
LED 3 drive signal
5
O
LED5
LED 5 drive signal
6
O
LED4
LED 4 drive signal
7
O
LED8
LED 8 drive signal
8
O
LED7
LED 7 drive signal
9
O
LED6
LED 6 drive signal
10
---
+5V
+5VDC
11
I
SW4
SW4 signal
12
I
SW3
SW3 signal
13
I
SW5
SW5 signal
14
---
---
GND
15
---
---
GND
16
I
SW1
SW1 signal
17
I
SW0
SW0 signal
18
I
COPEN
---
19
I
SW2
SW2 signal
20
I
PSC
Power On signal
21
O
LED1
LED 1 drive signal
22
O
LED0
LED 0 drive signal
Table A-11. Connector Pin Assignment-CN13
Table A-12. Connector Pin Assignment-CN14
Table A-13. Connector Pin Assignment-CN15
Summary of Contents for LQ 670 - B/W Dot-matrix Printer
Page 1: ...EPSON IMPACT DOT MATRIX PRINTER EPSON LQ 670 SERVICE MANUAL SEIKO EPSON CORPORATION 4007875 ...
Page 5: ...v REVISION SHEET Revision Issued Data Contents Rev A May 28 1997 First issue ...
Page 114: ...Chapter 6 Maintenance 6 1 Preventive Maintenance 6 1 ...
Page 116: ...LQ 670 Service Manual Rev A 6 2 Figure 6 1 Lubrication Points ...
Page 122: ...LQ 670 Service Manual Rev A A 5 A 2 Circuit Diagram Figure A 2 C214Main Board Circuit Diagram ...
Page 123: ...Appendix Rev A A 6 Heat Sink Q1 D51 Figure A 3 C214PSB Board Circuit Diagram ...
Page 124: ...LQ 670 Service Manual Rev A A 7 Heat Sink Q1 D51 Figure A 4 C214PSE Board Circuit Diagram ...
Page 125: ...Appendix Rev A A 8 A 3 Component Layout Figure A 5 C214 Main Board Component Layout ...
Page 127: ...Appendix Rev A A 10 A 4 Exploded Diagram Figure A 8 Exploded Diagram ...
Page 128: ...LQ 670 Service Manual Rev A A 11 Figure A 9 Exploded Diagram ...
Page 129: ...Appendix Rev A A 12 Figure A 10 Exploded Diagram ...
Page 135: ...EPSON SEIKO EPSON CORPORATION ...
