Hi all, I’m experiencing a strange timing problem when using an MM5316 clock chip to drive a 7-segment LED display. The clock chip drives non-multiplexed individual segments for each of the four digits for minutes, 10 minutes, hours, and 10 hours, and it is designed to drive VFDs directly. It works fine when I set it up to drive IV-12 VFDs. I’m powering the chip with about 12 vdc. But when I connect a 7-segment LED display to it using 560R voltage dropping resistors to each segment, the minutes digit advances every 30 seconds rather than 60 seconds.
Anyone have any thoughts on what might be causing this to happen? TIA, Randy Sent from my iPhone -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion, visit https://groups.google.com/d/msgid/neonixie-l/0D6422E0-9492-495D-8692-D96E680B0AE6%40gmail.com.
