So, I was feeling a little Christmassy (?) and trying to do a good deed for the local Seniors center. There was an absolutely perfect looking 1973 Yamaha E10R that I watched being brought into the thrift store. DOA!! I just couldn't resist and bought it with the intention of fixing and gifting to the Seniors. Looked too good to be anything major wrong with it.
---
Well, it was not the power cord, as I had hoped. So, I am into it now. It had 3 blown fuses on the main power supply assembly (the one on the left from the rear). I thought that was odd to have all 3 blown, so I took the power supply assy out. It appears that someone (probably a plumber, he sure didn't know much about rosin core solder or anything smaller than a 150 watt iron) has been inside here before. I gave a very very close visual inspection and can not find any whiskers touching where they ought not. But I, after looking at the "repair" job that the last guy did, can;t help but wonder if he might have switched some of the transformer wires. It appears that he replaced the power transformer.
If anyone can shoot me a copy of the power supply section from a schematic, I feel that I might be able to make it work and it would be a nice Christmas present for a bunch of old timers (I'm only 67). I would need to be able to read the wire color codes on the schematic and see the connection of the transformer up to the first in line device after the transformer. Or even a good photograph might help me. It is possible that the transformer itself is bad but I don't know what voltages it should read. (It pops the fuse immediately on power application). I expect to bypass the printed circuit board where he overheated it and melted the foil and wire directly to the first device. The transformer that is installed says GA0186 29DIBE C.S. A. As you might expect, there is no money for this project and I have already spent too much of mine. If I can't fix it without money, I will have to get rid of it. 
Thanks, Roy