Sony HA-55 -- Japanese service manual?

[Sam Z]

Hi guys, does anyone know where to get Japanese service manuals from? I have the 100V Japanese domestic version of the Sony HA-55 MC head amp and it has a slightly different design to the export model for which I can easily find the service manual.

I'm going to recap and repair it, but after opening it up I found the board layout is a bit different and all the cap values are different to the export model manual. It's not what I expected to see when I opened it up. It'd be nice to have a Japanese version of the manual to work from to help me diagnose some issues, check component specifications, etc...