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    tipc

    PC-98 keyboard compatibility

    I do not nor ever have owned a true PC-98 computer. But I do own an NEC APC III which is equivalent to the original PC-9801 (?). I believe it's safe to make the assumption the keyboards are...

    tipc Today, 03:27 PM Go to last post
    BakaOsaka

    I can confirm that Pin 21 (RESET) is initially...

    I can confirm that Pin 21 (RESET) is initially high, and goes low shortly after (ie under a second).



    With the either the original BIOS ROM or the Landmark ROM fitted to U18 the state of Pin 20...

    BakaOsaka Today, 03:21 PM Go to last post
    maxtherabbit

    WTB 1Mx1 DIP-18 DRAM Large Quantity

    Looking for some extra RAM for my Bocaram card. The more the better. Let me know, thanks

    maxtherabbit Today, 03:04 PM Go to last post
    Hugo Holden

    Thank you. That could be a solution, though...

    Thank you.

    That could be a solution, though the 3417 is rated to 5MHz operation the 3121 to 2.5MHZ, and I'm not sure if in the application it would matter.

    The operation of the IC's is...

    Hugo Holden Today, 02:55 PM Go to last post
    Elder0010

    CBM 3032 screen interferences

    I have a 3032 with the same issue discussed here (shaky screen):

    http://www.vcfed.org/forum/showthread.php?46181-Repairing-a-beautiful-4032-screen-flickering

    I'm sure that display is shaking...

    Elder0010 Today, 02:43 PM Go to last post