A few weeks ago I dropped my Pentax V analog spotmeter. Ever since then, its occasionally not worked at all then 5 minutes later its fine. There is no in-between, its all or nothing. I dont have the money to buy a new one or have this looked at by a repair pro right now. Has anyone been inside one of these things that could give me some idea what to look around for, or should I keep out of it and hope it works when I need it?