Hello Ed,
thank You very much for your help.
I always thought that for "F-Anlage" they would use the letters "Fu" (not the F only).
But I checked every manual I have anyway, also the manual for the Fu.Bl.2 (I know for sure that this exact landing system was equipped on the crashed plane) but I could not find anything like the part I posted.
I also checked every cockpit and radio panel picture I could find (Ju 88, Ju 188 and others) but nothing.
Is it possible that the manuals don't go deep into details as You said, and so this is the reason why I can t find it?
Neither have I the "Part 9D of Ju 188" and I don t know where to find it...
Thank you again

AR