I picked up an old school Timex T121 desk clock from a garage sale. It runs fast, it picks up about a minute or 2 minutes a week.
I wanted to see if there was some sort of crystal or something I could replace that would correct that. I opened it up, however I don't see any type of crystal on the board, although truth be told I am not sure what I am looking for. The only thing that looks like a crystal is a small silver cylindrical component, but that is on the LCD board, not the main board, so I don't think that has anything to do with keeping the time.
I know some old digital clocks ran off counting the signal of your mains voltage vs using a crystal, how can I tell if this is that sort of clock and if so can it be adjusted? And from my understanding those types of clocks there only are off a few seconds a month.
Pics of both sides of the main board and the back side of the LCD board (still in the housing)
I wanted to see if there was some sort of crystal or something I could replace that would correct that. I opened it up, however I don't see any type of crystal on the board, although truth be told I am not sure what I am looking for. The only thing that looks like a crystal is a small silver cylindrical component, but that is on the LCD board, not the main board, so I don't think that has anything to do with keeping the time.
I know some old digital clocks ran off counting the signal of your mains voltage vs using a crystal, how can I tell if this is that sort of clock and if so can it be adjusted? And from my understanding those types of clocks there only are off a few seconds a month.
Pics of both sides of the main board and the back side of the LCD board (still in the housing)
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