Trackpoint doesn't work anymore x60

[radiator]

My x60tablet has met some problems with trackpoint. It suddenly stopt working. I bought new keyboard and it still not working. Nor does it work under linux. \in menager device trackpoint ps2 has yellow shield. Installing drivers doesn't help it says no synaptic device present. I found on the web there maybe sth to resolder on MB but lost the link. I don't know what to do? Any issus to check that \i might have missed?
fn+f8 no work for me
edit
Can onyone please point me which fuse is responsible for trackpoint or which pin on keyboard socket makes it work?