Macintosh IIfx Drive replacement — #6

Post #6 by trag

Source Forum	Macintosh IIfx Drive replacement — #6
Category	Software
Post Date	Fri, 10 Aug 2012 - 22:24
Original URL	https://68kmla.org/bb/threads/macintosh-iifx-drive-replacement.25986/

Post

The Mac IIfx is the one that needs the special "black" terminators, isn't it? Does anybody know what makes black terminators different? Is it active vs. passive or is it something else? It would theoretically be pretty easy to modify a little adaptor board once to have a black terminator and then swap whatever drives you want.

The IIfx terminator just adds a couple of components (caps, I think) across a couple of pins on a regular terminator. I don't remember the details, but there was an Apple Technical Note about it.

Ah, here we go: http://www.fenestrated.net/~macman/mirrors/Apple%20Technotes%20%28As%20of%202002%29/dv/dv_15.html

Apple Technical Note DV15

Also see this 68kmla discussion:

http://68kmla.org/forums/viewtopic.php?f=8&t=11554