A few years ago (almost 10 now) Downtown Doug Brown created the ROM Simm Programmer to allow programming of rom simms all at once in a socket. This became what today is the ROM-Inator II simms and others that are seen on many sites. Big Mess of Wires also made and sold the programmers for some...
I have a Mac 128K original, not modified in any way, that I just fixed and is booting up and all. The mouse works with movement but the button will not do anything. I know the mouse is good as I use it on another machine. I have tested the DB9 port, the RC pack is good, and no trace damages...
After many days work and a hunch that the rom on the IIvi is bad, I can confirm it is. I removed it and took the rom from a working board and soldered it on the non-working board and guess what? Booted up and worked fine.
Now I am in the hunt for a IIvi, IIvx or P600 rom to save this IIvi. If...
To all,
I have this IIci board i been working on and can’t seem to find the issue. To not have a long description, I have a video made of it on my channel at this link.
Any assistance or guidance would be appreciated.
Thanks
if this post not permitted, I apologize and go ahead remove it.
After having a broken gear for the above eject motor and not able to find a gear for it, I set out to make my own. First CAD design and first endeavor into 3D printing as I just received my Anycubic Photon Mono 4K. A fellow member of @mitchkramez stepped in to help with the details as I am new...
I recapped and cleaned this board both the PSU and motherboard. I now get this image on screen when turn on. I moved the rom, cpu, mmu, iou to another IIc and they all work fine. Anyone have ideas what to check for? Some detailed info would be great assistance.
I have removed the ram and put...