HP 9895A Part 2: Epic Controller Board Repair (and a transparent chip surprise) скачать в хорошем качестве

HP 9895A Part 2: Epic Controller Board Repair (and a transparent chip surprise)

We restore more HP 9895A dual 8" diskette HP-IB drives, but these will be way more challenging. We'll need a full on logic analyzer assisted repair to debug a really, really nasty fault. It's a long video, but don't miss the intermission where Master Ken inspects a transparent silicon-on-sapphire chip! Many thanks to HP enthusiast Craig Ruff for the ROM dump and disassembly. Part 1: HP 9895 Restoration so we can play Colossal Cave    • We restore the HP 9895 dual 8" disket...   8" Floppy Playlist:    • 8" Floppy Diskette Drives   HP 9825 Playlist:    • HP 9825 Repair   Ken's Silicon-on-Sapphire chip blog post: http://www.righto.com/2023/12/HP-sili... Stuff that supports the channel: Amazon links for the tools I use in the lab: https://www.curiousmarc.com/amazon-links Channel merch on Fourthwall: https://curiousmarc-shop.fourthwall.com Legacy channel merch on Teespring (I don't have everything transferred to Fourthwall yet): https://teespring.com/stores/curiousm... Support us on Patreon:   / curiousmarc   "Elevator Music" Credit: Crinoline Dreams by Kevin MacLeod Our lovely sponsors PCBWay: fast turn PCBs, https://www.pcbway.com Electro-Rent: https://www.electrorent.com Keysight: test instruments: https://www.keysight.com Samtec: connectors: https://www.samtec.com R&D Microwaves: https://rdmicrowaves.com Get more technical info on the companion site: https://www.curiousmarc.com Contact info: https://www.youtube.com/curiousmarc/a...