Recent content by David Cook

I'd prefer that the correct checksum is computed and saved to the ROM. This allows independent test programs (such as Mac Test Pro) to pass testing. It also means the ROM checksum routine does not have to be altered.

https://tinkerdifferent.com/threads/macintosh-portable-horror-story.2712/page-5

Awesome!

The page numbers of the schematic that the signal connects to. For example, DISP_BLANK* is also present on pages 2, 12, and 18.

X = external, I = internal

Can you post a picture of that area of the schematic?

Off the shelf, fortunately!

Did you draw the splash screen? It looks amazing!

The backstories are so helpful. Those of us that were not around tend to invent our best theories for parts, bodges, and designs, but are delighted to learn the actual first-hand account.

I never heard the term Apple 32 SuperMicro before today.

I like his initials on the memo so you could tell it wasn't just anyone with a Mac pranking employees.

Good story! Keep them coming.

LOL

This isn't an LC, but this is my favorite "replacement label" in my collection. I laugh every time I pass it.

There's something I like about this replacement label.