hifi engine

Service Manual or Schematic for Luxman D-357 CD Player needed..

I have a Luxman D-357 CD Player that has been inactive for a long time.
The player looks very good from the outside. I cannot say the same thing about its electronics that seems more "consumer" than "Luxman grade".

I've located a dried capacitor that was causing the VFD display to flicker and I've replaced it.

Now, playing with front panel keys, sometimes I fall into a "blocking" condition and I have to turn it off and on again. So, this is the remaining problem I have to solve.

I cannot find a SM or a schematic diagram for it. Can you please help me in finding it?

Thank you in advance