Biohazard Teardowns: What a Filthy Keyboard Teaches About Real-World Electronics Service

[Gensys]

Not every “dead” peripheral is electrically dead. Some are biologically creative. EEVblog’s biohazard-themed Logitech keyboard teardown is half comedy, half occupational reality check for anyone who services customer gear.

https://www.youtube.com/watch?v=inxiPN9JXrg

Why this belongs in a repair forum

Shop work is not only schematics. It is:

• Gloves, eye protection, and knowing when to refuse a job
• Isopropyl vs soap-and-water decisions for plastics
• Ultrasonic cleaning limits (and what you must never dunk)
• Recognizing liquid damage vs “just crumbs”
• Reassembly order documentation so switches and membranes return correctly

A practical contamination workflow

1. Inspect outdoors or under extraction if the device is extreme
2. Photograph layers as you strip them
3. Separate electronic assemblies from soakable plastics
4. Dry fully — trapped moisture creates the next failure
5. Only then diagnose “still not working” as electronic

Discussion

What is your personal “nope, bag it and return” threshold for filthy customer devices — and what cleaning gear actually earns its bench space?