Stamford MX341 AVR overexcitation repair

This AVR was blind to the voltage on the sense terminals, and would overexcite the generator until it shut down. The fault was that one of the 6.8 kOhm resistors underneath the heatsink had gone open circuit. Both of these are in series with the voltage measurement input, so if one fails open, the AVR believes that there is no voltage output from the generator. To remove the potting compound, patience and prying with a screwdriver worked well. Making sure the splitting edge where the compound lets go from the bottom of the PCB is soaked in 99% isopropyl makes removal significantly easier. Video explaining more about the AVR:    • Automatic Voltage Regulator AVR MX341 Func...   Video demonstrating a simple (but hazardous) test set-up:    • How to check generator avr is faulty or no...   Throw money at me:   / ffcossag   Music, when applicable, supplied by https://combatplayer.bandcamp.com/ -- THIS VIDEO IS RELEASED TO THE PUBLIC DOMAIN To the extent possible under law, I have waived all copyright and related or neighbouring rights to this work, according to the Creative Commons CC0 affirmer. This means that anyone is free to use this content in any manner they see fit, without my objection. However, the video may still contain copyrighted content (images, video, audio, software, etc.) that does not belong to me. WHILE I DO NOT RESERVE THE RIGHTS OF ANY PART OF THIS VIDEO, THE COPYRIGHT OF THIRD-PARTY CONTENT STILL BELONGS TO ITS RESPECTIVE OWNERS. THE COPYRIGHT OF THIRD-PARTY CONTENT IS NOT WAIVED. THE VIDEO IS PROVIDED AS-IS, AND I DO NOT PROVIDE ANY GUARANTEE OF ITS QUALITY.