Tools are modest and specific. A multimeter, a signal tracer or audio probe, a temperature-controlled iron, desoldering braid and a solder sucker, flux, a magnifier lamp, and a drawer of jacks, pots, and electrolytic caps that fail more than anything else. Replacing a cracked DC jack sounds trivial until you have to clear six through-holes on a double-sided board without lifting a pad. Reflowing cold joints on an amp's tube sockets involves high voltage and a wooden bench and a lot of patience.
What the camera sees is the tech's hands and the board, which is the point. The first-person view shows the probe landing on a trace, the meter reading, and the pause while they decide what that reading means. The fixed cameras record the bench from overhead and from the side where the scope and meter screens are visible. Full shifts are recorded, not staged repairs, so there are jobs that stall and jobs that get sent back.
Delivery is per repair episode, segmented into intake, visual inspection, powered testing, fault isolation, component removal, replacement, and verification. Each step has a label a technician would recognize. Success and failure are tagged at the episode level and at the step level where a desolder went wrong or a part had to be redone. Optional tracking covers hands, iron tip, probe, and the board itself. We export into your format and write to your storage.
Collection happens in working repair shops in five countries, with consented and paid participants and commercial training rights. A sample set can be in your hands within a business day.