Epson LQ-510 - Appendix

REV.-A
APPENDIX
APPENDIX
A.1 INTEGRATED CIRCUITS WITHIN THE LQ-510
.................................. A-1
A.1.1 SAMA Board Main Components
...........................................
A-1
A.1.1.1 CPU µPD781OHG (5B)
........................................... A-2
A.1.1.2 E01A05 (7A)
.........................................................
A-7
A.1.1.3 E05A02 (1A)
.........................................................
A-9
A.1.1.4 HM65256BLSP (5A)
...............................................
A-10
A.1.1.5 SLA7020M (2B)
....................................................
A-11
A.1.1.6 S-2940I (4B)
.........................................................
A-12
A.1.1.7 TL431CLPB (6B)
...................................................
A-14
A.1.1.8 TTL .....................................................................
A-15
A.1.2 SANPS/SANPSE Board Main Components
............................
A-16
A.1.2.1 TL494 (IC20)
........................................................
A-16
A.2 EXPLODED DIAGRAMS AND SCHEMATICS ......................................
A-17
LIST OF FIGURES
Figure A-1. µPD7810/7811 Pin Diagram ..............................................
A-2
Figure A-2.
µPD7810/7811 Block Diagram
.......................................... A-3
Figure A-3.
OP Code Fetch Timing .................................................... A-6
Figure A-4.
Memory Read Timing ...................................................... A-6
Figure A-5.
Memory Write Timing ...................................................... A-6
Figure A-6.
E01A05 Pin Diagram ........................................................
A-7
Figure A-7.
E01A05 Block Diagram
.................................................... A-9
Figure A-8. HM85256BLSP Pin Diagram ............................................. A-10
Figure A-9.
HM65256BLSP Block Diagram
.......................................... A-10
Figure A-10.
SLA7020M Case Outline Drawing
.....................................
A-11
Figure A-11.
SLA7020M Functional Equivalent Circuit
........................... A-11
Figure A-12.
S-29401 Pin Diagram .......................................................
A-12
Figure A-13.
S-29401 Block Diagram ....................................................
A-12
Figure A-14.
Timing Chart (Read) ........................................................ A-13
Figure A-15.
Timing Chart (Write) ........................................................
A-13
Figure A-16. TL431CLPB Pin Diagram .................................................. A-14
Figure A-17.
TL431CLPB Block Diagram
.............................................. A-14
Figure A-18. 74LS06 Internal Circuit .................................................... A-15
Figure A-19.
74LS07 Internal Circuit .................................................... A-15
Figure A-20.
74LS38 Internal Circuit
.................................................... A-15
LQ-510 A-i