I received an email from a friend in my local astronomy club, asking me about the clock in an LX 200 he has. I am sure the scope is not new. He has to enter time and date each time he starts the scope and was wondering if there was something like the little coin-sized battery in the DS mounts that powers the clock when the scope is turned off. If there is in his scope, it is obviously run down. So far, he has not found anything like the little battery in the DS 2000 mounts.
Since I know nothing about the internals of an LX 200 or an LX 90, I thought I would ask on the forum for some words of wisdom from LX 200 and LX 90 owners about how the clocks are powered in their respective scopes. If there is such a battery, where should he look?