Guys... dont worry ! I work in IT and handle electronics far more complicated than this little sucker!
and..... anyhow I fixed it!
turning the board over I could hear the offending plug rattling against the case top! Yes it was as I suspected the keyboard is not connected to the sound engine!
Looking at the inside through the keyslot I could see the cable flapping about ....
5 mins and the plugs now in place ... I now have the menus for keyboard controls and a check with outputs and all is hunky!! So no panic guys!
And I managed not to damage the security label - so much for that!
So if anyone else gets this issue ... then you know where to look !
btw the plug is a really loose fit and so not a surprise .. it wouldnt take much to shake it out!
and dont worry I work on things much more complex and expensive that this so I know what I am capable (or not capable of!) - I also build design and operate alot of my own ham radio gear too
so now to make some noise!!!