Appendix
Rev. A
A-2
Pin
I/O
Signal
Function
1
---
GP
Ground
2
---
GP
Ground
3
---
+42V
+42VDC
4
---
+42V
+42VDC
5
---
GND
Ground
6
---
GND
Ground
7
---
+5V
+5VDC
8
---
+5V
+5VDC
9
O
PWDN
Power-down signal
10
I
PSC
Power switch
Pin
I/O
Signal
Function
1
---
A
+5VDC
2
---
+5V
+5VDC
3
---
GND
Ground
4
I
E
PW(TOP) Detector
Pin
I/O
Signal
Function
1
O
HD5
Pin 5 drive signal
2
O
HD1
Pin 1 drive signal
3
O
HD13
Pin 13 drive signal
4
O
HD9
Pin 9 drive signal
5
O
HD21
Pin 21 drive signal
6
O
HD17
Pin 17 drive signal
7
---
+42V
+42VDC
8
---
+42V
+42VDC
9
---
+42V
+42VDC
10
O
HD24
Pin 24 drive signal
11
O
HD16
Pin 16 drive signal
12
O
HD12
Pin 12 drive signal
13
O
HD8
Pin 8 drive signal
14
O
HD20
Pin 20 drive signal
15
O
HD4
Pin 4 drive signal
16
---
+5V
+5VDC
17
I
HTMP
Thermistor signal
Table A-2. Connector Pin Assignment-CN3
Table A-3. Connector Pin Assignment-CN5
Table A-4. Connector Pin Assignament-CN6
Содержание LQ 670 - B/W Dot-matrix Printer
Страница 1: ...EPSON IMPACT DOT MATRIX PRINTER EPSON LQ 670 SERVICE MANUAL SEIKO EPSON CORPORATION 4007875 ...
Страница 5: ...v REVISION SHEET Revision Issued Data Contents Rev A May 28 1997 First issue ...
Страница 114: ...Chapter 6 Maintenance 6 1 Preventive Maintenance 6 1 ...
Страница 116: ...LQ 670 Service Manual Rev A 6 2 Figure 6 1 Lubrication Points ...
Страница 122: ...LQ 670 Service Manual Rev A A 5 A 2 Circuit Diagram Figure A 2 C214Main Board Circuit Diagram ...
Страница 123: ...Appendix Rev A A 6 Heat Sink Q1 D51 Figure A 3 C214PSB Board Circuit Diagram ...
Страница 124: ...LQ 670 Service Manual Rev A A 7 Heat Sink Q1 D51 Figure A 4 C214PSE Board Circuit Diagram ...
Страница 125: ...Appendix Rev A A 8 A 3 Component Layout Figure A 5 C214 Main Board Component Layout ...
Страница 126: ...LQ 670 Service Manual Rev A A 9 Figure A 6 C214 PSB Board Component Layout Figure A 7 C214 PSE Board Component Layout ...
Страница 127: ...Appendix Rev A A 10 A 4 Exploded Diagram Figure A 8 Exploded Diagram ...
Страница 128: ...LQ 670 Service Manual Rev A A 11 Figure A 9 Exploded Diagram ...
Страница 129: ...Appendix Rev A A 12 Figure A 10 Exploded Diagram ...
Страница 135: ...EPSON SEIKO EPSON CORPORATION ...
