I'm repairing a Midas Venice mixing console. Try and avoid doing so. It's a nightmare
Despite the agent's tech insisting that the 'solo' switches are 'self cleaning', no amount of exercising them will prevent 2 of them behaving intermittently.
They are pcb vertical mount types, i.e. the control surface is a series of large flat double sided boards. From appearance I guessed the switches to be ALPS but the German parts list gives the following reference as best as I can decode it.
SCHALTER-TAST 4XUM 1 switch 4pdt
It's a latching type btw.
Any help sourcing same would be appreciated. I only need 2 but knowing this beast one or two more might pack up !