Floppy Disk Drive Stepper Motor Alignment

Support Noel's Retro Lab on Patreon:   / noelsretrolab   Join me in this episode as we fix a 3" floppy disk drive and then realign the stepper motor. This is a fairly common fault in these kind of drives (present in Amstrad CPC, PCW, and Spectrum +3 computers among others) that results in the dreaded "Drive A: read fail" error, so you're likely to encounter it sooner or later. We'll look at what exactly it means to align the stepper motor, we'll see how to do it with an oscilloscope, and then we'll wrap it up by doing it by hand. Chapters: 00:00 Intro 00:28 Problem explanation 01:05 Drive examination 05:14 Push test 07:18 Cleaning the guide rail 09:47 Disassembling the stepper motor 10:40 Disk structure 12:56 Preparing for alignment 14:46 Aligning with oscilloscope 20:30 Aligning by hand 23:31 Conclusion Links: CPCWiki forum https://www.cpcwiki.eu/forum DSKTest tool by pacomix http://www.cpcwiki.eu/forum/applicati... You can also support Noel's Retro Lab on YouTube by joining this channel:    / @noelsretrolab   Connect with Noel's Retro Lab: Discord ➤   / discord   Facebook ➤   / noelsretrolab   Twitter ➤   / noelsretrolab   Instagram ➤   / noelsretrolab   #amstrad #spectrum #floppydiskdrive