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Type: Posts; User: MikeS

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    Found the original manuals and the scans; who'd...

    Found the original manuals and the scans; who'd have thought to look into a binder labelled Commodore Assembler Development Package, duh ;-)

    Also disk images of all the software; PAL is indeed...
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    LOL! Something like this reply to Ruud in NL, two...

    LOL! Something like this reply to Ruud in NL, two years ago?
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    I could be wrong but I don't think it uses a ROM;...

    I could be wrong but I don't think it uses a ROM; if I could find the manual it probably also has the disk in it.

    Maybe Steve will read this; I think he scanned my manual and also archived the...
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    ...But you often know where to find stuff...

    ...But you often know where to find stuff...
  5. I've got a few of those Micropolis 100-track...

    I've got a few of those Micropolis 100-track drives, both the bare mechanisms in the 8050s as well as the complete versions used in some CP/M systems; FWIW, the problems I've seen (aside from the...
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    LOL! That's my PAL manual that I loaned to Steve...

    LOL! That's my PAL manual that I loaned to Steve to scan; good thing, because I can't find my original ;-)

    BTW, Power is a BASIC enhancer; the C64 versions of the manuals are probably pretty...
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    I just plugged the Power ROM into a PET and the...

    I just plugged the Power ROM into a PET and the checksum should indeed be 483054, so I guess maybe it is a ROM for PAL.

    Lots of stuff out there for the C64 versions of Power and PAL but I can't...
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    I'd be surprised if the docs for both aren't out...

    I'd be surprised if the docs for both aren't out there in cyberspace somewhere; if not, I think I have them somewhere. I'll check, but I didn't think that PAL used a ROM.

    I take it you have no way...
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    It was a long time ago, but as I recall I started...

    It was a long time ago, but as I recall I started out trying to use existing traces and cutting the rest, and finally decided it would be quicker and easier to just remove the pcb altogether.

    With...
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    Aaarghh... now that's truly a rat's nest!!

    Aaarghh... now that's truly a rat's nest!!
  11. Thread: Wanted: Mos 8701

    by MikeS
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    And if I remember I'll also have a look.

    And if I remember I'll also have a look.
  12. The terminology's a little confusing here; when...

    The terminology's a little confusing here; when you say 'monitor' in this context do you mean the terminal?

    Disconnect it from the computer and connect pin 2 to pin 3 at the cable end that goes to...
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    I understand about keeping the keyboard original,...

    I understand about keeping the keyboard original, even if it is the only original piece left in there ;-)
    I just think you're going to run into trouble with the multiple keys (shift, CTL, etc.).
    ...
  14. Nah, don't give up. This is par for the course...

    Nah, don't give up. This is par for the course when doing this sort of remote diagnostics; it's great to have several people looking at your problem but it can take a while, not just because of the...
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    Wouldn't it be simpler in the long run to just...

    Wouldn't it be simpler in the long run to just rewire the keyboard matrix? I've done a few of those in my time...

    I also use several commercial programmable matrix > PS/2 encoders, but they're not...
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    $5 per square inch, 3 copies:...

    $5 per square inch, 3 copies:
    http://oshpark.com/pricing
    It's not inherently messy; that's up to you...

    I like NVRAM chips like the Dallas DS1220/1225; like an EPROM but you don't need a...
  17. Obviously I agree; we're at 67 posts and still...

    Obviously I agree; we're at 67 posts and still don't know whether the RS232 I/O is working and wired/configured correctly, or whether the CPU is actually running...

    Some faults on the bus could...
  18. Sounds like we could remove all the function and...

    Sounds like we could remove all the function and control keys and most of the punctuation keys and most people wouldn't miss them unless/until their mouse broke.[/QUOTE]
  19. Of course it's possible, and then we'll have a 40...

    Of course it's possible, and then we'll have a 40 or 50 posts long thread about aligning or replacing disk drives, 1.2HD vs. 360KDD formats/densities/parameters etc. etc. with a few gratuitous M$...
  20. A scope is definitely invaluable when you really...

    A scope is definitely invaluable when you really get into it, but even a multimeter or logic probe can help with the signals we're dealing with here.
    At this point it would probably make more sense...
  21. Exactly! When you're talking about keys on the...

    Exactly!

    When you're talking about keys on the keyboard it says more about the user than the key; I use the Scroll Lock and Windows keys every day, and although few modern keyboards actually still...
  22. I guess you didn't try what I suggested about 20...

    I guess you didn't try what I suggested about 20 posts back which would probably at least tell you whether the receive side works, nor did you confirm that it should use 2 stop bits, or answer...
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    Say what?

    Say what?
  24. Should work, although pin 20 is usually connected...

    Should work, although pin 20 is usually connected to pin 6 (and 8 )
    Are you sure? It's usually only one stop bit with 8 data bits and no parity.

    It would certainly matter if it's holding the...
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    The XT and clone almost certainly have spare...

    The XT and clone almost certainly have spare sockets and the AT probably does as well AFAIK. Did you ever establish what size/type the EPROMs actually are?
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