Fairlight-CMI

Hi there

Currently restoring a Cmi Fairlight IIx, the one from Talk Talk 
actually. We still have issues using and testing the lightpen. When 
we open it it works more or less, but when we put back the cover of 
the pen it doesn't work at all. It seems that it's a well known 
problem difficult to solve.

Anyway, anyone in the group having some reference or ressources to 
repair or get a new lightpen somewhere in the world?

Thanks in advance

Pascal