Not come across this sort of thing before but:
>
> Customer brought in a Bose L1 Model 2 system - he's broken the slide out
> leg mechanism, and the legs will no longer deploy - they are locked
> together and will not move.
>
> Now the only way to get to 4 of the screws to dismantle the unit is to
> slide out the legs, as the screws are hidden by them when they are
> stowed.
> So the unit cannot be dismantled to fix the mechanism.
>
> Page 41 of the Service Manual shows the procedure.
>
>
formatting link
>
> Blimey.
Maybe this is Bose as in Higgs Boson, and can only be tackled in a parallel universe?
Mike.