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THose are prototype ROMs and they are pretty much the same as the released ones, mind uploading them?

Use a RGBtoHDMI, make sure you have a pi Zero. Next is a matter of finding a screen that fits so in this case I believe this would work. What you will be doing is taping into the video signal in the analog board to feed a video signal to the RGBtoHDMI, from here its as simple as plugging in the...

Here are photos of the Port Pack

I also forgot to take apart the port pack I’ll do all of this later tonight.

Also was wrong about the 68882, I’ll have to take it apart again and see what’s actually under the yellow.

Yes the FPU is the yellow labeled chip. I might be able to do a ROM dump.

Okay so here's something interesting, I disassembled the TechStep and have taken photos. From what you can see there are no SMD electrolytic capacitors ,they are all tantalums stock from Apple. Also fun fact the TechStep has a FPU it is a Motorola 68882. Something else I want to point out is...

PM me let's design one.

Wonderful, strange Apple stopped sometime in 1993 with support would be my guess.

Love this, thanks for the link.

These ROMs match the same computers covered in the ROMs I have here, correct?

Probably not too terribly difficult, might have custom chips though, I can take mine apart and see.

Do you happen to have photos and also what ROMs were included?

Thank you I really appreciate it, everyone has worked hard on this. I wanted to win a prototype to see what all is different on the prototype ROM's and units but I imagine very little change except for maybe the devices name which was originally the TechTool before being replaced with TechStep...

I have one don't mind making something for ya, if you ever need something made PM me

Guy on eBay is selling pulled chip he's from the UK though.

PRAM reset first this sometimes takes anywhere from 1-5 tries on LC's (command + Option + P + R while booting). Also the SCSI cable is unplugged in the photo. Let me know if any progress happens after you try this.

Don’t have the exact SCSI chip I have one off a iisi right now that may or may not work, as for the LC520 board I have I can confirm everything on it is working. In regards to your board there is a seller in eBay selling the chips for about $25USD

I have a spare LC520 board, can you take a picture of the Color Classic logic boar? I ask because I might have spare SCSI chips.

No worries just when you get a chance, trying to see what all I can do.