ElectricLab Posted October 7, 2020 Share Posted October 7, 2020 Does anyone else out there have one of these? I just got one, and am cleaning it up, dumping ROMs, and going to replace caps before firing it up. I have a lead on the 8" floppy drive that goes with it, but no software is available. 5 1 Quote Link to comment Share on other sites More sharing options...
RickyDean Posted October 7, 2020 Share Posted October 7, 2020 12 hours ago, ElectricLab said: Does anyone else out there have one of these? I just got one, and am cleaning it up, dumping ROMs, and going to replace caps before firing it up. I have a lead on the 8" floppy drive that goes with it, but no software is available. I used to have one in the early to mid ninties, but it didn't work and I still have some of the cards that fit inside. 2 Quote Link to comment Share on other sites More sharing options...
kl99 Posted October 7, 2020 Share Posted October 7, 2020 yes, i got one. a friend managed to read out the disks that came with it recently. http://www.ti99.eu/?page_id=4416&lang=en 4 Quote Link to comment Share on other sites More sharing options...
ElectricLab Posted October 8, 2020 Author Share Posted October 8, 2020 13 hours ago, RickyDean said: I used to have one in the early to mid ninties, but it didn't work and I still have some of the cards that fit inside. I still don't know how much work it'll be to get this one going, but I'm going to give it a good try! 2 Quote Link to comment Share on other sites More sharing options...
ElectricLab Posted October 17, 2020 Author Share Posted October 17, 2020 (edited) I finally get her cleaned up enough to try to power up, to test the power supply first. I discovered that I have no -5v, so something is amiss with the 5v regulator card. Other voltages are spot-on. I did notice the CRT flash on and off too, so that was a good sign. One of the caps on the 5v board looks different, like it's been replaced before. It's a 4-terminal 14000uF monster and it doesn't look like it burst like some later electrolytics do when they fail. It looks pitted and discolored on the aluminum surface. I will take it out and see what the cap meter says. Edited October 17, 2020 by ElectricLab Added pic Quote Link to comment Share on other sites More sharing options...
Cathy Everidge Posted June 1, 2022 Share Posted June 1, 2022 If you have one with a thermal printer disconnecting the thermal printer frees up the memory used by the thermal printer driver. I (along with Glen Edgard in Gary Stimacs group) wrote the operating system for the 771. 7 Quote Link to comment Share on other sites More sharing options...
+dhe Posted June 7, 2022 Share Posted June 7, 2022 What does it run Cathy? Very Kewl Points for having a hood that lifts up to work on it! Quote Link to comment Share on other sites More sharing options...
+FarmerPotato Posted June 9, 2022 Share Posted June 9, 2022 @ElectricLab I got an incomplete pile of DS990/1 boards from the stenographer’s estate auction. If it’s compatible and you need the one with the 14mF caps, just ask. DS990/1 system looks just like the 771 on the outside. 1 Quote Link to comment Share on other sites More sharing options...
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