On Wed, 03 Mar 2004, John Hermanson wrote:
> The meter casing is the metal casing the meter movement is housed in. The
> screw on the circuit board is a ground screw (it is connected to the main
> body casting) , so checking between it and any other point on the metal body
> casting should be "0" ohms (like putting one probe in one strap lug, the
> other probe in the other lug).
ok, this works.
> If you want to check if meter movement is itself good it must be done this
> way. Probe must go to contact where meter wire is soldered. Meter casing
> has only one wire coming out of it. Trace it back to the board to see where
> it is soldered.
> An open meter means that somewhere in the meter "winding" (which is hundreds
> or thousands of turns of super-fine hair-thin wire) the wire is broken.
> meter replacement would be required.
obviously i have an open meter. the resistance between the two points is
approx 16kOhm.
> The meter itself is a press fit into the outer meter casing. So that (the
> contact area between the meter movement and the outer casing) is yet another
> electrical contact point that can fail. Checking this would require
> removing the meter from the camera which I recommend only for those who have
> changed meters many times.
i guess that the camera has to undergo a CLA after all. i'll check the
addresses i received here and maybe local stores and decide then if it
is worth it.
thanks for all your help,
--nils
--
The Things I'd do as Evil Overlord (www.eviloverlord.com):
117. No matter how much I want revenge, I will never order an
underling "Leave him. He's mine!"
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