Fixed my garage door opener today (it wouldn't keep the door down and was smoking during use). Ancient thing that is not manufactured or supplied anymore. Absolute Pain ITA... Repair steps:
1. Researching to find out problem was a blown capacitor
2. Removing said capacitor from the unit, including minor electrical work
3. Researching where to find the exact match capacitor
4. Ordering capacitor
5. Installing replacement, including minor electrical work
6. (Still didn't work) Researching why
7. Removing broken bracket, which required socket wrenches
8. Removing and replacing up-force cam multiple times which involved going into my Dad's (RIP) old tools to find a socket wrench that fit
9. Removing and replacing down-force cam multiple times (which had popped of and was in a random corner of the garage looking like something that was important, but I had no idea what it was until I researched it.
Took a few hours (once the part arrived)... made me have to postpone dinner

But now that I think about it... Its fixed! That's rave-worthy... I'm doing it...