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  1. Cool, i will proceed with getting one for a few...

    Cool, i will proceed with getting one for a few bucks and trying it out. Thank you
  2. Synertek 6504 for CBM 4040 floppy drive?

    Is a Synertek 6504 (7752D) a usable replacement for a MOS MPS 6504 (0580) in a CBM 4040?

    The Synertek 6504 doesn't have an alpha designation, so it should be 1mhz
  3. I'll give it a shot, thanks!

    I'll give it a shot, thanks!
  4. Eprom - Changing C128 Boot colors, 40 and 80 column modes

    Hi all,

    I would like to edit my C128's boot ROM, especially my 80 column mode colors & text.

    I've done a few Eproms on my Commodore 64s, changing colors & text, and was wondering about the...
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    LOL, yes.

    LOL, yes.
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    Well at least it's labeled 1982 RevA. The...

    Well at least it's labeled 1982 RevA.

    The chips range from 1982 to 1984. As near as i can tell, this board was a refurb at the factory, with an 8-pin Video port, wires on the backside. Might have...
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    Here's my 1982 326298 Rev A board with the lovely...

    Here's my 1982 326298 Rev A board with the lovely cardboard RF Shield: C64 326298

    I also have a 250407 with the shield. I removed them, but have kept them.
  8. Thanks Dave! I appreciate all your help

    Thanks Dave! I appreciate all your help
  9. So next thing i've been told to check has been to...

    So next thing i've been told to check has been to piggyback RAM chips, i don't have any 4116's so i am ordering some.
  10. And after i used the V3 version of PETTEsT,...

    And after i used the V3 version of PETTEsT, everything went to plan:

    Pet 4016 with PETTEsT V3

    Thanks guys for your help. :-) (Been in contact with Daver2 and he's modifying a BIN for me to...
  11. OK, here is my screen with the PETTEsT ROM...

    OK, here is my screen with the PETTEsT ROM install. Nice to see characters! :-)

    Pet 4016 with PETTEsT ROM picture
  12. Thank you guys for the responses. I'll burn...

    Thank you guys for the responses. I'll burn Dave’s PET TESTER ROM and get back to the group
  13. I did try this, but am not getting anything. I...

    I did try this, but am not getting anything. I may have to take the keyboard apart and cross the contacts by hand, as im not sure if my plungers are making any electrical contact.
  14. Yes, my screen is doing exactly as you say, it...

    Yes, my screen is doing exactly as you say, it doesn't show cold, but warmed up i see it.

    No, i haven't tried the Tester Rom, Excuse my ignorance, but could you give me more information?

    Thanks...
  15. Sorry, 901447-10.

    Sorry, 901447-10.
  16. Wow! That's cool.

    Wow! That's cool.
  17. OK, so i burned the 901447.bin to multiple (3)...

    OK, so i burned the 901447.bin to multiple (3) TMS2532JL-45 Eproms with the same results. Used my GQ-4x4, cleared the chips beforehand. Had zero problems burning the bin file, checked and verified...
  18. I have a GQ-4x4 and some Eproms coming, so i'll...

    I have a GQ-4x4 and some Eproms coming, so i'll play around with that Character Rom :-)
  19. Here is my board, unfortunately i'm out of town...

    Here is my board, unfortunately i'm out of town for a few days and don't have access to it:

    https://ibb.co/kD9Kg67
  20. Thanks for the responses! Here is the screen...

    Thanks for the responses!

    Here is the screen with the Character Rom removed.

    https://ibb.co/BrXBkks

    Here's the video of turning it on with the Chip installed:
    ...
  21. PET 4016 - Boot Problem - Beeps, snow fills screen to solid white

    Just got a PET 4016, which had a working screen before it was shipped (i saw the pictures), though i was told that the keyboard didn't work (assume old dirty contacts).

    On power up, it:

    1....
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    Thank you!

    Thank you!
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    Hey, thanks! Appreciate it :-)

    Hey, thanks! Appreciate it :-)
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    Greetings from Northern Idaho

    Hi there!

    Started with a Commodore 64 back in '85, Moved to a 128 a few years later.

    Went to college and started using IBM compatibles and had a sweet Zeos Tower 486/66 - i'm searching for a...
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