Dead power supply (realistically a charger), I offer some tips on finding and repairing similar dead electronics. This is the charger for an older Sony Handycam, the design principal is similar to most any brand charger/supply though.
Look an HP 97 Calculator! A what? Batteries are shot and the internals are a bit wonk, I fix the inside, make it look great on the outside, and power it up! Then promptly set it on a shelf again. … Continued