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In this video I show the steps to follow to repair a CHINT brand clock/timer, model NKG 2.
The problem with the clock was that it did not activate the output of the relay contacts, since there was no power supply to its coil. Once the circuit components have been tested, the fault is located in a 1N4750 Zener diode.
Once this component is replaced, the clock works correctly again.
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Do you want to make an ovoscope with recycled materials?
Here is a link in which I explain all the steps to follow.
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