aguyandhisappleii Posted December 27, 2022 Author Share Posted December 27, 2022 1 hour ago, MarkO said: That can lead to the 74LS125 being Blown Up... I ALWAYS, remove the Disk ][ Controller and turn Upside Down, to plug in the Drive "correctly".. This I learned to do after Blowing Up 2, of the 74LS125s... The Clicking is the Apple ][ Power Supply, shutting down to prevent damage... MarkO Yes. I heard and am worried about that. When I get the chance, I'll open up the drive to see if I did indeed bust any chips. Since my Apple II was a non-autostart one, the drive never even spun even when I got it connected properly (I didn't issue the commands for accessing the drive - I also didn't know these older IIs don't automatically boot from the drive), so I'm hopeful nothing got blown up but I don't know if that's how it works. As for the keyboard, I'm going to buy a replacement for the encoder chip (an MM5740AAE/N) to see if that gets it working again. Since I have no other keyboards, chips, or Apple II hardware to test with, that's pretty much the best I can do. Quote Link to comment Share on other sites More sharing options...
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