bench testing a digital clock

[plyhammer]

I can't seem to find/remember which of the pins I need to hook to ground and which to power to check if the clock is working. I am putting together something to test my clocks on the bench. THanks

[thomasryan]

pins 15 and 30 to B+ and 31 to earth.

skip to 13:30ish

https://youtu.be/4j5Bg05vLuE