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Fading digits after few second of powering the clock
Fading digits after few second of powering the clock
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4 months 2 weeks ago #12936
by Ian
The circuit is not public, as far as I know. My first thought would be to replace the capacitor that is marked 10uF 400V with another 100V one - I don't think the exact value is that important. Anything from 1uF to 10uF should be fine, as long as the voltage rating is > 200V.
Second thought would be to change the small capacitor that is attached to pin 3 of the 34063 - I can't tell you the value, but it is usually 330pF to 470pF.
It's all not very clear on these Chinese boards - I'm not even convinced that they have standards themselves: each board looks a bit different. :-/
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Fading digits after few second of powering the clock
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