About this log
Bench Notes is a personal record of electronics repairs done at a small home workbench. It is not a shop and nothing here is for sale. The notes exist so that a fix learned once is not forgotten the next time a similar fault appears.
Each entry tries to capture three things: the symptom as it arrived, the measurements that narrowed it down, and the part or joint that actually failed. Schematics are redrawn by hand where the original is unreadable.
Tools on the bench are ordinary: a temperature-controlled iron, a hot-air station, a dual-trace oscilloscope, a decent multimeter, and a stereo microscope for the small stuff. Safety first — mains equipment is discharged and isolated before any probe goes near it.