Yamaha DX-27S
This time I tried to repair a very old instrument, which, as you can see in the photos, had been lying in the attic for many years and even the wasps loved its insides. Unfortunately, despite my best efforts to repair the cracked motherboard, I was unable to restore it to 100% working, as it hangs up from time to time. It was the only one so far that was used for parts.