Help Needed- Digital Clock using ICs cd4060 and cd4026

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BerserkSin

Joined Jul 28, 2022
1
I found a blog that shows how to build a digital clock using ICs cd4060 and cd4026. https://danyk.cz/hodiny_en.html This is the site. I have checked if my ICs are working and they are. The only output I'm getting is the every 7 segment display shows 0 and the the two decimal points blink every second. But i can change what the display shows or anything.Help please
 

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ericgibbs

Joined Jan 29, 2010
16,002
hi B,
Welcome to AAC.
Using a DVM, check the voltage on pin #1 on IO2 /4026, it should be switching high /low at every 1 Second.
This will check that the 4060 is running.
E
 

LesJones

Joined Jan 8, 2017
3,773
Also, do the decimal points flash faster when TL1 or TL2 are pressed ?
The fact that the decimal points are flashing suggests that the 4060 and 4026 IO2 are working.

Les.
 

Reloadron

Joined Jan 15, 2015
6,822
Assuming it is all wired correctly the 7 segment displays used look to be common cathode are your displays correct and not common anode? Everything else seems to have been mentioned. Keep in mind a single error in the rats nest of wiring will spell frustration and grief.

Ron
 

LesJones

Joined Jan 8, 2017
3,773
I think the TS has lost interest. It is 12 days since the original post and he has not responded to any of the suggestions or questions.

Les.
 
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