http://www.electronicecircuits.com/electronic-circuits/cd4060-timer-circuit-1-minute-to-2-hours I've replicated the circuit in the given link but \$D_2\$ in my circuit doesn't work at all. Also, the relay doesn't operate. I tried unplugging the relay. LED \$D_1\$ is normally working and blinks with a time interval which I can change using \$VR_1\$.
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\$\begingroup\$ Are you sure you have Q1 the right way around? \$\endgroup\$– Ignacio Vazquez-AbramsCommented Oct 30, 2014 at 2:39
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\$\begingroup\$ Yes, i checked it again, it's right. \$\endgroup\$– altac boriCommented Oct 30, 2014 at 2:42
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\$\begingroup\$ Is there a voltage across R3 when it should be on? From pin 3 to ground? \$\endgroup\$– Ignacio Vazquez-AbramsCommented Oct 30, 2014 at 2:46
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\$\begingroup\$ No, there isn't. \$\endgroup\$– altac boriCommented Oct 30, 2014 at 2:49
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\$\begingroup\$ Put on your properly-grounded antistatic wrist strap and replace the IC. \$\endgroup\$– Ignacio Vazquez-AbramsCommented Oct 30, 2014 at 2:51
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2 Answers
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Yes, dear people of stackexchange, I want to thank you all for your time and effort, you helped me to a great extent to understand this circuit, and general electronics. And I want to apologise for my unmutable idiocity. Bruce was right, my chip couldn't supply enough current. Because i didn't supply it any current at all. After trying many different circuits and having a night's sleep, i managed to connect Pin 16 to 9V input.
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Are you waiting long enough for the output at Pin 3 to turn on? It would be 1/1024 the rate of the D1 signal, or 1024 x the duration.
