Posted in retro on May 14th, 2024
TL;DR I hex edit a binary to make it work with my “newer” Courier modems TL;DR 2: Less than 12 hours later posting I find an updated version of USRSTAT2.EXE from 1997 that fixed my bug and makes my hacking irrelevant Way back on the US Robotics BBS (USR BBS) they had a door program […]
Posted in retro on May 13th, 2024
Good news! A new video RAM chip fixed the lingering video artifacts I had. I looked up the IC model that was in it “HM6116LP-2” and found some on eBay. I had to wait a couple of weeks for them to arrive from China, but popped the first one in and it worked like a […]
Posted in retro on May 7th, 2024
I finally got around to working on the TRS-80 model 4 again, specifically troubleshooting the floppy drives. Last time I tried to boot it, the drive light would come on and it didn’t sound like it was doing anything. I suspected the belt on the bottom had deteriorated/and or lost tension and wasn’t spinning the […]
