Just finished building a second bulb dial kit - after a long period having built the first a year or two back with zero problems.
The blue and green sections seem to go fine. Having finished the red and connected all up I get the following...
It runs backwards when first powered up
The 'transition' between the seconds is slow and jerky - like instead of the nice smooth transition it should be the two LEDs alternate say 10 times visibly before the next one stays lit
I've checked the joints on the chip and the crystal plus those between the boards and they seem ok. I've also checked the polarity of all the red LEDs and they're fine too
I'm a bit stumped about what to check next. I can make it run ok if I change the direction the clock runs in the settings plus turn off the (supposedly) smooth transition but I'd rather it ran properly! Incidentally it does this both with and without the Chronodot.
Any help much appreciated. Thanks, Dan