I don't think you're wrong - all of my M100s are 110CH1X. 1010 certainly seems to be an earlier revision of the board. Just curious - what's the date code on the CPU? I can't make it out with the cap in the way. Also, if you're up for dumping the ROM, it would be interesting to compare it to a 'released' version.
//Ken S. ________________________________ From: M100 <[email protected]> on behalf of Josh Malone <[email protected]> Sent: Tuesday, October 24, 2023 12:07 PM To: [email protected] <[email protected]> Subject: Re: [M100] Possible M100 prototype. Off the top of my head, I don't recognize that artwork number: PLX 1010H1X. Am I wrong here? And, wow, this thing is bodge city. Almost like the Tandy 1400FD that I have. (that I still don't know the story behind the bodges) -Josh On Tue, Oct 24, 2023 at 11:38 AM <[email protected]<mailto:[email protected]>> wrote: All, I recently attended Tandy Assembly 2023 and Eric Dittman asked me to recap an M100 that had belonged to Frank Durda an engineer at Tandy. I did not pay much attention to it at the time but when I took it apart last night, I was not sure what I was looking at. The PCB is a US type but has dozens of modifications and is a bit different than any other one I have seen. I then noticed it was missing the TRS-80 Model 100 badge, the FCC label and it had no serial number. Now I’m thinking this might be a prototype machine. I took a few quick pictures, link below. I plan to take some higher quality images and document the modifications as well as I can. The goal it to get it working but not alter it more than required. The only caps that look like they are leaking at the 10uf (which are normally the worst ones), so I will start with those and the memory battery and see if it springs to life. https://1drv.ms/u/s!AtH4vpaZnzX7mKBV07xl8qlMDuc6QA?e=UfFBVx Thoughts? Jeff BIrt
