Hello from France

I'm new here and looking for informations and schematics to get a Nec A-11 amplier repaired.
I bought it new in the early 80's.
It needs some service repair for a long time now but local technician is unable to find sevice manual.
A few years ago I was in Tokyo and asked for that manual directly at the NEC company building and they told me everything was destroyed !...
 
Many thanks to StevenOH. I had already found hifiengine web site but they don't accept new account so I was unable to download that file.
So one more time many thanks to to have attached the file. So I have now to hope that the technician will be able to will be able to resurrect my amplifier !