My Spotmaster aka Ultra Spot meter has a somewhat sluggish function button - sometimes it works, sometimes it ain't.
While Bogen and Gossen just too happily offered to look at the meter and fixing it, they never answered on my requests on how much a repair/adjustment of the button would cost. And both carefully avoided to answer if I could perform the fix myself.
I am tempted to give it a try myself, if I could just manage to open the darn housing of the meter. It got at least two hidden screws (or something similar to that avail) hidden underneath a small round patch (no clue how to get it off) in the middle section of the housing.
Anyone here having some good hints/advice on how to to the meter's guts without applying lethal force?