Consumer Electronics introduced
Is it possible to accelerate a digital clock?
I had this camera clock for about six months. works perfectly. it’s just an alarm clock, no radio. Last night, I realized it is about 10 minutes early. but I know I did not change it to be fast on the end. I put, and it was my computer and cell phone time. I noticed it again and it is 50 minutes OFF! 02.45 clock, it is, it really is 01.55 clock. How come? very annoying.
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#3 written by bobarama7k 1 year ago
sounds like the oscillator is going bad, its easy to find, and sometimes hard to replace, if you ever opened a digital watch, you see this silver cylinder with 2 pins going into the board at the bottom of the cylinder, just buy a cheep digital watch, snip its oscillator off, but make sure where it says ##Hz matches the same one on the clock, otherwise, the whole thing is messed up. some clocks use the 555 chip, i think, and in that case, there is no oscillator, and the problem is almost impossible to locate, so just buying a new clock is best, i had one of these too, missed a lot of first period classes because of that demon clock.
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Unusual.
If mains driven then usually they get their “clock pusle” from the mains which depending on where you are is 50Hz or 60Hz.
Providing it is tied to the mains it should be incredibly accurate – as the electricty companies (in modern countries) count the number of cycles and make sure that if theyhave slowed down a little (very heavy loads) then they catch up later.
Problems can occur if:-
A 50Hz clock is used in a 60Hz country – or vice versa, clock will lose/gain about 10 minutes per hour.
NOT mains driven – or on battery backup. At this point the clock is goverened by an internal crystal and if the battery is almost flat, it CAN on some units, make the crystal oscillate a little faster
It’s buggered.