A little bit off topic here…. With quite a few people trying to resurrect dead Model T’s I was wondering if this idea: http://blog.tynemouthsoftware.co.uk/2016/04/pet-exerciser-upcoming-project-preview.html
might be of interest to other Model T owners? Of course it would have to be developed for the 80C85 which is not socketed on the Model T, but the HOLD pin is available as are 40pin test clips. It could run diagnostics for a voltage check, Keyboard, LCD, RAM and ROM to check everything is working and potentially isolate the problem. If it was based on the Arduino UNO platform (perhaps an 80C85 Shield?) then it should be quite simple to put together the hardware and software development would be well supported for those that wanted to tinker with the diagnostics. I have a T102 that so far is resisting being debugged, I suspect it is a cracked track (or two) so I have some interest :) Apologies if this is not an appropriate discussion topic for the list. From: M100 <[email protected]<mailto:[email protected]>> on behalf of Jeffrey Birt <[email protected]<mailto:[email protected]>> Reply-To: <[email protected]<mailto:[email protected]>> Date: Thursday, May 3, 2018 at 7:17 AM To: <[email protected]<mailto:[email protected]>> Subject: Re: [M100] SPAM-LOW: Re: New member - question on 'half' alive Model 100 Thanks for the info about the ‘oddness’ to both you and another poster I now have some more insight into what I am looking at and for. I probably won’t have a chance to work on it again until tomorrow evening. I did find a ROM disassembly on Kevin Petit’s folks at the club100 website. Looking at it now whilst minding a little CNC mill making a calibration fixture for a microwave sensor (very slow and boring but it has to be done 😊 ) I’ll do some more investigation and probably be back with more questions. Thanks again everyone! Jeff
