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Old January 5th 05, 06:04 PM
Mark Zenier
 
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In article ,
Henry Kolesnik wrote:
According to my schematic Q57 and Q58 are drivers for the 2 LEDs used in the
clock mode to indicate AM or PM. Looks like I'm going to get the scope on
the bench and see what happens on the various segment pins. I've not had
much luck finding the data sheet on the MSM5524, anyone have any?


The service manual for the (Trio)Kenwood R-1000 has a lot on it.
Internal block diagram and pinout. I got the pdf from the mods.dk
site.

Mark Zenier Washington State resident