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Type: Posts; User: MikeS

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  1. Replies
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    1,665

    Sounds like he'd rather go through the major PITA...

    Sounds like he'd rather go through the major PITA of sourcing and replacing the caps, most of which are probably OK, instead of just plugging in an $8.00 tube which probably could use replacement...
  2. Replies
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    5,220

    You do like challenges, don't you... ;-) Looks...

    You do like challenges, don't you... ;-)

    Looks fairly well built though, FWIW.
  3. Replies
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    1,134

    What do the headers have to mate with? Almost...

    What do the headers have to mate with? Almost looks like they're mounted on the wrong side, e.g. compared to this board:...
  4. Thread: Blog photo links

    by MikeS
    Replies
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    423

    Thanks, Chuck; am downloading it just in case it...

    Thanks, Chuck; am downloading it just in case it disappears completely next time.

    Hope you didn't offend Mike too much... ;-)
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    946

    I think you're right; it measures 0.3 Ohms on a...

    I think you're right; it measures 0.3 Ohms on a drive in front of me. Definitely check that tantalum!
  6. Replies
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    1,336

    A15 is there because the adapters are designed to...

    A15 is there because the adapters are designed to use up to a 512K EPROM. If you're using a smaller one just ignore it and don't let it bother you; he didn't do it specifically to mess with you, but...
  7. Replies
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    1,336

    Looks like the same adapter; are you sure? That...

    Looks like the same adapter; are you sure? That junction where the three resistors come together should connect to Vcc on pin 28 of the 27xx and pin 24 of the 23xx with a trace running underneath R2,...
  8. Replies
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    1,336

    I don't get these references to floating pins;...

    I don't get these references to floating pins; are we talking about the same adapter(s)? Which pins? There should be pull-up resistors R1, R2 and R3 along the top on the A13, A14 and A15 address...
  9. Replies
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    3,711

    Most excellent! Can't wait!

    Most excellent! Can't wait!
  10. Replies
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    1,336

    Correct; the adapters I linked above are meant to...

    Correct; the adapters I linked above are meant to replace 24-pin 23xx-type ROMs with 28-pin 27xx equivalents or larger, especially the ubiquitous 2364 used in many systems; one of them has the extra...
  11. Replies
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    3,711

    Good idea, although Dave M has pretty well...

    Good idea, although Dave M has pretty well cleared up the confusion for now; thanks, Dave!
  12. Replies
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    1,336

    No problem; see:...

    No problem; see:
    http://store.go4retro.com/2364-adapter/
    and
    http://store.go4retro.com/23xx-adapter/
  13. Replies
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    3,711

    Great stuff, guys! Good to see another PET...

    Great stuff, guys! Good to see another PET resurrected.

    AFAIK this monitor is compatible with the 2001 in the other thread, so if/when our Italian friend feels the itch again we could at least...
  14. Replies
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    1,336

    ISTR that Hitachi also made one...

    ISTR that Hitachi also made one...
  15. If your programmer knows about the Motorola 68764...

    If your programmer knows about the Motorola 68764 or 68766 you should be able to read them; I believe there are also compatible Hitachi and Cypress 24-pin 64Kb EPROM versions but I can't locate the...
  16. Replies
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    3,711

    I should have put one of those in my post; not...

    I should have put one of those in my post; not trying to be cranky or bitching, just trying to save some time.

    We're all happy to help as much as we can.

    ;-)
  17. Replies
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    This is starting to go the way of the other...

    This is starting to go the way of the other thread...

    OP asked where to find diagnostic ROMs and I pointed him to Dave's binaries and the instructions; instead of downloading those he grabbed the...
  18. Replies
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    3,711

    There are also several good blogs about this very...

    There are also several good blogs about this very thing out there; here's an example:
    http://www.verrua.org/pet_repair/
  19. Replies
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    See the last few posts in your previous thread. I...

    See the last few posts in your previous thread. I think V03 contains instructions.
    http://www.vcfed.org/forum/showthread.php?69537-Pet-video-board-320064-02-bad&p=572270&highlight=#post572270
    ...
  20. Replies
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    Welcome back! In the other thread you asked if...

    Welcome back!

    In the other thread you asked if a monitor from an 8032 would work with your 2001 (no); does that mean that you have access to a working 8032 by any chance? That would be the easiest...
  21. Replies
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    Nice! Is it complete and running? In a...

    Nice! Is it complete and running?

    In a slightly different class, but I guess you could call it the B80's big brother; definitely one of the last, if not the last ledger card capable computers.
  22. Replies
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    Thanks, DaveM and thanks, DaveR!

    Thanks, DaveM and thanks, DaveR!
  23. Replies
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    I should probably start a new thread, but...

    I should probably start a new thread, but speaking of...

    As usual, when I dug out the 2001s in case we needed to compare some voltages or resistances they were both dead although they'd been...
  24. Replies
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    That's too bad, and I was really looking forward...

    That's too bad, and I was really looking forward to the 14V mystery being solved, but I don't blame you.

    I think Frank gave up a while ago but he's also in Italy. He's probably not close to you...
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    Sorry, we went a little off topic there with our...

    Sorry, we went a little off topic there with our nostalgic ruminations...

    Do they run? Do they have a removable program panel at the rear of the carriage?

    What are your plans?
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