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Thanks, good to see the transceivers are available, once the Rev.A schematic is developed and compared to the IIcx schematic, four (possibly eight?) of the HAL ICs might be eliminated in order to implement the remainder on a test board?

Thanks, great resource. History of NuBus seems particularly relevant here as it was standardized in 1987, well after development of the Macintosh II, released March 2 that year. https://en.wikipedia.org/wiki/NuBus https://en.wikipedia.org/wiki/Macintosh_II...

I think my notes are long gone, but ISTR deciding that the NuBus ChipSet in the DuoDock was a pure, Apple-unadulterated but rebadged TI product. Which edition of DCaDftMF are you referencing?

Anything I'll build will be a new PCB daughtercard for an abbreviated version max's Macintosh IIcx board. Hope to test several configurations in a DIMM slot placed between Slots and the main logic board. Throwing in a PDS slot and maybe a IIci Cache Slot adaptation for my PowerCache for bonus...

OK, it's here if anyone wants to take a peek: https://tinkerdifferent.com/resources/texas-instruments-nubus-interface-products-data-book-1991.43/

Sorry, lost track of that tidbit with all the projects coming together of late. Glad to see you've come over to the dark side. :p

Here we go again, guys. As the apprentice, this is what I do on these projects. Once I set up all the pins in a neat grid I can watch you sorcerers team up to bowl them over one after the other! :p @Bolle Are you saying that it's not practical, or even possible to build an automated datalogger...

@Zane Kaminski you're forgetting that max is the unrivaled Zen Master of the LC Clan and wields the power to bend the LCIII PCB layout to his will, even to the point of reformatting its form factor to fit another machine. ;) I keep telling him to move to another 72pin SIMM for Bank A, but I...

I'm officially late for work. As I was leaving it was at my doorstep, a day early, well packed, fully intact including programmer's switch. It has the prettiest, most nicely accented, new in Mac TOBY card that I have ever seen! :D

The KBD is thick enough for mechanicals, IIgs caps would be perfect and notice that the LCD housing is hinged up at the forward edge. :D

You mentioned a black version wtih different key setup, post pic? LCIII board would be perfect, video outputs 640x480 VGA in the LC series, no? Board would be inverted so ports hit the backplane upside down along the top edge with room for your FDD or even a SCSI bridged slotloader optical from...

@Bolle ISTR you having one of these boards? Do you know what programmable logic ICs are used in the Rev.A and if they are crackable?

Why trip at the center of the pixel? Might keying to the leading and or trailing edges of the signal be easier for converting analog to digital input in this single bit, Black/White system? Synchronicity would be necessary for sampling a GS signal I think, but why couldn't this particular...

Wondering about the thickness of that KBD assembly? I suggested the cheapos I'm using because that would not be an issue. While mechanical and so being much too thick for your build, the IIgs KBD is Snow White purity incarnate. If you can noodle out a rubber dome membrane interface with printed...

It's not the flex circuit so much as the hardware to make use of it that will be your limiting factor. The rubber domes and key placement are set in stone given my KBDs. Unless you're excising swaths of Cursor/PageNav/NumPad sections of a full size KBD, there would be no need for customizing the...

Unless you're doing your own flex, you're stuck with using parts available to be scavenged from KBDs like what I'm lightly modding. Haven't looked at it , but excising the upper part of the case seems likely to work. That would interfere with the KBD/Panel Bezel interface. Were I you, I'd play...

All that's pretty much what we're trying to figure out. Per the diagram above, A11, RAS1 and RAS3 are all that's keeping Bank A of the IIsi from supporting a full 64MB to match Bank B's 64MB and yielding the IIci/SE/30 max. loadout of 128MB. AFAIK, that's the limit for the 68030 II series...

Nope, I'm comparing the depressed keys on one of the two I'm rearranging with the raised keys on an intact KBD. Four rows of black keys swapped over into the silver along with the controller board KBD so it matches up with the black mouse dongle. It'll go with this one if and when . . . ...

the maniac = Danamania = @nanoraptor = Dana Sibera = Pixel Princess of Oz = Official Muse of the 68KMLA KBD detail: Forgot I was linking to her Lounge Thread, that's why you can't see it.