Sanyo M-X960K or MR-X20 Service manual / schematics?

My BigBen has got a a large problem and I need the complete schematics.

I own the japanese MR-X20 and it doesnt reach high volume and in tape-operation the REC-LED lights permanently and no sound on playback. But the logic deck is fully working.

I guess there is a muting function active or ... ???? :annoyed:

Here are some pics of my former repairjob:

viewtopic.php?f=2&t=7355

Is there nobody to support me with a service manual ?
:'-( :'-( :'-( :'-( :'-( :'-( :'-( :'-( :'-( :'-( :'-( :'-( :'-( :'-(

You can get the manual including full schematics here:

http://www.analogalley.com/osccart/index.php?manufacturers_id=51

Почему не видно ответы в теме ?

Because there aren't any answers. Yours is the first post.