Dodgy Bodgy - Fixing up a TRS-80 Model 102 with a few questionable vintage upgrades.

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In this video we take a look at a Tandy/TRS-80 Model 102 with a few questionable vintage upgrades. No doubt someone did the best they could back in the day but they did not age well. We’ll revert these mods to more of a factory condition and then get led down the primrose path when testing. Will we get this poor little T102 working again?
Timeline:
00:00 - Welcome
01:28 - What’s the problem?
06:13 - Fixing those ‘upgrades’
21:42 - Testing
27:00 - Down the primrose path…
35:11 - Wrap up, thanks!
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[@Fezzler61]

Nice! 1) Wow, it did clean up way better than I thought it could! Great job. 2) The power of "the stash"! Never throw things out, LOL. 3) Not embarrassing at all, we all do stuff like that. I for one appreciate that you left it in and did not edit it out - shows our humanity! 4) The "HEY BIRT!" test brings me a familiar sense of comfort and stability in this crazy world. NICE SAVE!!!

[@TheStuffMade]

Nice job repairing/saving this one. While the mod was quite messy, it was good to see the person who did it didn't use a blowtorch and there was no damage to the board.. Always makes me a bit sad when all the pads are lifted and traces broken from someone using an electrician/plumber iron to do electronics.

[@DerekWilsonProgrammer]

Probably that plumber's first soldering job that didn't involve pipes. I hope they learned better. Glad you saved this from going into the toilet!

[@DavidPlass]

That hot glue cleaned up REALLY nicely. I'm amazed! Great job.

[@bald_engineer]

Seeing that EPROM soldered to the clipped pins really triggered me. It is sad to see lazy short cuts like that. But, I am glad you were able to mend some of the other craziness.

[@Xyquest]

Whoever worked on this originally was clueless. Good fix!

[@iz8dwf]

I wouldn't touch such horrors honestly! Kudos to you Jeff!

[@darkwinter6028]

“Bodges? BODGES?!? We don’t need no stinkn’ bodges!!!1!” 😉

[@JimLeonard]

PLUMBING FLUX :-O

[@robbyxp1]

Lovely job

[@dougmerrett7234]

Thanks for another great video!!

[@mileselectronicsstudio7316]

Another great video Jeff! I was smiling a bit when I saw you set the rotary switch to "0" instead of "F" for TS-DOS. Happens to the best of us! Your Test Harness and Test ROM jigs piqued my interest. Never seen anything like that for the Model-T systems and I think I might like to get one. Does it work with all the Model-T systems or only the M100/M102? Does it work with the M200? The ports are in different places on the various models if I recall, so can the test harnesses accommodate this? Anyway, would love more information on this test harness / test ROM setup you showed in the video, I did not see it for sale on your Soigeneris site. Thanks again for all you do Jeff!

[@HeyBirt]

The test harness works on the M100, T102 and I have used it on the Olivetti M10 too. I don't have it on the website. Shoot me an email, contact info on site.

[@tenminutetokyo2643]

DOOD!