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Text File  |  1993-03-31  |  2KB  |  30 lines
  1. ┌───────────────────────────────────────────────────────────────┐
  2. │                                                               │
  3. │   LPT (D-25):                                                 │
  4. │                                                               │
  5. │   signal pin                                                  │
  6. │                  20k   20k                                    │
  7. │   D0     2   >───░░░─┬─░░░──────> 0v (GND, pin 20)            │
  8. │                  20k ░ 10k                                    │
  9. │   D1     3   >───░░░─┤                                        │
  10. │                  20k ░ 10k                                    │
  11. │   D2     4   >───░░░─┤                                        │
  12. │                  20k ░ 10k                                    │
  13. │   D3     5   >───░░░─┤                                        │
  14. │                  20k ░ 10k                                    │
  15. │   D4     6   >───░░░─┤                                        │
  16. │                  20k ░ 10k                                    │
  17. │   D5     7   >───░░░─┤                                        │
  18. │                  20k ░ 10k                                    │
  19. │   D6     8   >───░░░─┤                                        │
  20. │                  20k ░ 10k                                    │
  21. │   D7     9   >───░░░─┤                                        │
  22. │                  20k ░ 10k      100nF                         │
  23. │                      ├─────>  >──┤├─┬──>                      │
  24. │                      │              │                         │
  25. │                      ░ 10k      10nF┴   ──> Amplif.           │
  26. │                      │              ┬                         │
  27. │   GND    20  >───────┴─────>  >─────┴──>                      │
  28. │                                                               │
  29. └───────────────────────────────────────────────────────────────┘
  30.