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Showing content with the highest reputation on 05/10/25 in all areas

  1. jimxxx
    Hi, not a problem all that will happen is they will not be as bright as the original lamps,
    1 point
  2. julalain
    OK, thank you very much. I have a scope and I will check these lines. I have already looked at some lines with my scope and I saw some pulsing but I did not check them all. I have almost finished the MPU diagram.
    1 point
  3. midibob
    OK, this is going to be a bit tricky then as you will need a scope or failing that a logic probe. The ADDRESS and DATA lines can be accessed on the CPU(Z80) and they are numbered A0-A11 and D0-D7. They also go to the ROMs and RAM chip which you can see from the diagram, even if not exactly the same this is standard practice. So basically we want to check that all the lines are active (pulsing).
    1 point
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