My Neo Geo AES:

Before:


Had to take a button from a Neo Geo stick for the reset button. Apparently it was used as an arcade since it had several wires inside that didn't belong. I later learned that it was a Jamma adaptation. Had to replace the audio caps since they were gone. I had to make a power supply and AV cable too.

After:




MUSHA:

Before:




After:




I've repaired several other things but these four are the highlights. Almost all of my Sega hardware has been refurbished in some form (broken power/reset switches, re-calibrated Cd-pickups, cold solder joints, etc). Several of my SNESes too. I also got a TG16 but it was working fine, just needed a good cleaning.

I've also "repaired" several cartridges (i.e. cleaning the contacts) that were dead acording to the previous owner. Sometimes they need a new capacitor or battery, nothing fancy. In fact 50% of my collection has been salvaged from somewhere and repaired/cleaned. The most recent was this KI Gold cart:






After a good cleaning and restoring a couple of contacts with a bit of solder: