SP10 clock runs a little over an hour slow per day.
The clock runs slow. I changed the jumpers from 0010 to 0001 as per the chart in the instructions. Now I can use the clock as a fan it is going so fast ok, sleight exaggeration, but not much. Although I do like how fast the gears are turning, but I would like to know how to adjust it for the proper time. Any suggestions would be appreciated. Thank you
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Does the second hand move at the proper rate? If the clock is losing an hour per day. then the second hand would only move 57 seconds per minute. That much of a discrepancy should be detectable with a stopwatch. If the second hand is accurate, but the clock still loses time, then maybe the friction clutch is slipping. This would indicate not enough pressure in the spring or friction in the minute and/or hour hand gears.
Also, is there a blinking LED on the board? One LED is always on indicating power. The second LED should blink if the RTC is tracking properly. A non-blinking LED indicates a non-detected RTC and the rate will be off.
One additional error occurred on my mom's clock caused by a bad 5V USB power source. 5V power would drop out every minute or two and the clock would briefly stop and have to start up again. This error was noticeable by the non-smooth motion on the second hand. The clock would also make a ticking sound when the stepper motors power up again.