But what if the smoke came not from a component but from the PCB itself? [Happymacer] chanced upon this sorry situation in a power supply for an electric gate opener. Basking in the Australian ...

[TheSignalPath] wanted to repair a broken Instek ... There is a base PCB and three identical power supply modules, and virtually no access without disconnecting the boards. He continued the ...

No user-serviceable parts inside? Give me a break! The head unit is tough to get to, but the PCBs within the chassis use ...

A lot of great work has been done by Dan Bear and others over the years to recreate the now virtually impossible to acquire power supply for the TRS-80 Model ... This repository contains the schematic ...