I love this site. Earlier this year I was working to revive my sister's old WM-EX170 and was able to find a service manual for it here.

It made me appreciate how these devices are like pieces of beautiful clockwork!

I only had to replace the belt so it wasn't a complicated repair. But, in comparison to the level of documentation manufacturers of any modern electronics offer today, looking at that service manual was a reminder of what we've lost.