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I am working to repair a M5126 backlight Mac Portable. Recapped, repaired a few traces and I have the machine doing a good happy chime but when I connect an external (with power and correct INI file) or an internal bluescsi (portable version) it will still give me a good happy chime and then...

I am asking if anyone might have info on the transformer that is on the Macintosh Portable Backlight inverter board. See the pictures. I am hunting for an inverter or just the transformer to repair mine. Thanks for your help

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...

Hello. Anyone happen to have just the metal shell for a Quadra 950 PSU? I don’t need the guts as I am building my own internals. Thanks

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...