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Does anyone know the source location of the output enable (oe) pin for the G8/G3 crystal is. I have a board that was working but now the OE is always LOW on just this crystal and measuring from that pin to any of the others results in an open reading. I've checked the 9600 schematics and...

As part of solving a sad mac issue on an Apple Macintosh Backlit Portable (m5126) I ended up drawing out the RAM logic which others might find useful. I've checked it twice however it's the first schematics I've ever drawn so any issues let me know and I'll make the corrections.

I am having trouble sorting an issue with a friend's portable that was previous recapped by someone else and was working for years. On startup it's now getting a data bus error 000E FFFF. The board was in a bit of a state, so I've since ultrasonically cleaned it as well as repairing some...

Does anyone have documentation of the jumper setting for this card? Currently I have a DX4 100 CPU but on startup it says 75mhz CPU clock so I suspect the jumper settings are incorrect. I found references to a site "Andrew's OrangePC 290 page" which had this information however the site no...