Principles of Operation
Reset Circuit
The entire system (the CPU and the external devices) can be initialized if the
RESET signal (CPU pin 113) is activated. This circuit uses an M51938 IC to
monitor the supply voltage if a voltage level less than 4.25 V is detected. The
reset time is approximately 128 ms.
Figure 2-38. Reset Circuit
B u s C o n t r o l C i r c u i t
The MB86930 CPU outputs the R/W (read/write) signal, AS (address strobe)
signal, and BE0, BE1, BE2, and BE3 signals (byte enables) to the ASIC E05A91.
The ASIC E05A91 uses these signals to generate the RD (read strobe) signal, WR
(write strobe) signal, READY signal.
Figure 2-39. Bus Control Circuit
2-30
EPSON ActionLaser 1600 Service Manual
Содержание ActionLaser 1600
Страница 1: ...EPSON Service Manual ActionLaserTM 1600 Epson America Inc TM AL1600 ...
Страница 19: ...Printer Features Table 1 7 Built in Fonts Con t EPSON ActionLaser 1600 Service Manual 1 15 ...
Страница 58: ...Printer Features 1 54 EPSON ActionLaser 1600 Service Manual ...
Страница 62: ...Principles of Operation 2 4 EPSON ActionLaser 1600 Service Manual ...
Страница 97: ...Disassembly and Assembly EPSON ActionLaser 1600 Service Manual 3 5 ...
Страница 104: ...Disassembly and Assembly Figure 3 8 Removing the Housing 3 12 EPSON ActionLaser 1600 Service Manual ...
Страница 120: ...Disassembly and Assembly 3 28 EPSON ActionLaser 1600 Service Manual ...
Страница 122: ...Adjustments 4 2 EPSON ActionLaser 1600 Service Manual ...
Страница 141: ...Troubleshooting Table 5 38 Print Quality Anomalies cont EPSON ActionLaser 1600 Service Manual 5 17 ...
Страница 142: ...Troubleshooting Table 5 38 Print Quality Anomalies cont 5 18 EPSON ActionLaser 1600 Service Manual ...
Страница 143: ...Troubleshooting Table 5 38 Print Quality Anomalies cont EPSON ActionLaser 1600 Service Manual 5 19 ...
Страница 145: ...Maintenance 6 2 EPSON ActionLaser 1600 Service Manual ...
Страница 149: ...Maintenance Table 6 2 Cleaning Parts and Procedures 6 6 EPSON ActionLaser 1600 Service Manual ...
Страница 153: ...Appendix A A 4 Figure A 2 Cable Connections for the Engine Section EPSON ActionLaser 1600 Service Manual ...
Страница 154: ...Appendix A Table A 1 Board Connector Summary EPSON ActionLaser 1600 Service Manual A 5 ...
Страница 155: ...Appendix A Video Controller C125 MAIN Board Table A 2 CN3 Pin Assignments A 6 EPSON ActionLaser 1600 Service Manual ...
Страница 156: ...Appendix A Table A 2 CN3 Pin Assignment cont EPSON ActionLaser 1600 Service Manual A 7 ...
Страница 157: ...Appendix A Table A 2 CN3 Pin Assignments cont A 8 EPSON ActionLaser 1600 Service Manual ...
Страница 158: ...Appendix A Table A 3 CN4 Pin Assignments cont Table A 4 CN5 Pin Assignments EPSON ActionLaser 1600 Service Manual A 9 ...
Страница 159: ...Appendix A Table A 4 CN5 Pin Assignments Cont A 10 EPSON ActionLaser 1600 Service Manual ...
Страница 160: ...Appendix A Table A 5 CN6 Pin Assignments Table A 6 CN7 Pin Assignments EPSON ActionLaser 1600 Service Manual A 11 ...
Страница 162: ...Appendix A Table A 7 CN8 9 Pin Assignments cont EPSON ActionLaser 1600 Service Manual A 13 ...
Страница 167: ...Appendix A A 18 EPSON ActionLaser 1600 Service Manual ...
Страница 168: ...Appendix A Circuit Diagrams Figure A 3 C125 MAIN Board Circuit Diagram EPSON ActionLaser 1600 Service Manual A 19 ...
Страница 169: ...Appendix A A 20 EPSON ActionLaser 1600 Service Manual ...
Страница 170: ...Appendix A Figure A 4 LocalTalk I F Board Circuit Diagram EPSON ActionLaser 1600 Service Manual A 21 ...
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Страница 175: ...Appendix A Figure A 9 C125 MAIN Board Component Layout Rear Side EPSON ActionLaser 1600 Service Manual A 26 ...
Страница 176: ...Appendix A Exploded Diagrams Figure A 10 Exploded Diagram 1 EPSON ActionLaser 1600 Service Manual A 27 ...
Страница 177: ...Appendix A A 28 Figure A 11 Exploded Diagram 2 EPSON ActionLaser 1600 Service Manual ...
Страница 178: ...Appendix A Figure A 12 Exploded Diagram 3 EPSON ActionLaser 1600 Service Manual A 29 ...
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Страница 180: ...Appendix A Figure A 14 Exploded Diagram 5 EPSON ActionLaser 1600 Service Manual A 31 ...
Страница 181: ...Appendix A A 32 Figure A 15 Exploded Diagram 6 EPSON ActionLaser 1600 Service Manual ...