mike wilson <[EMAIL PROTECTED]> wrote: >Mark Roberts wrote: > >> "William Robb" <[EMAIL PROTECTED]> wrote: >> >>>My repair guy told me that MX meters were now unrepairable due to >>>unavailability of some proprietary electronics. >> >> This seems very odd to me. What could be proprietary in a light metering >> circuit that has a 5-LED display? I can't imagine what could be in it >> besides a few op-amps or comparators. > >Which will all have been incorporated into one chip, designed to fit >into the space available and to have in/outputs in the required places >for the layout.
Again, no big deal. Multiple-comparator chips are a dime a dozen and I can't imagine it would have been cost-effective to have a proprietary one made. I'm betting it's an off-the-shelf item. Possibly relabeled. All I'd need would be the pinout... -- Mark Roberts Photography and writing www.robertstech.com
