Causes:
(1) A dead internal battery, a CR1220 (3v, about the size of a dime).
(2) The clock is not connected to the correct power supply. Power supply should be 12v DC with 1.5 Amps.
Clock displaying 1/1/70 12:00 AM Print
Modified on: Thu, Mar 19, 2020 at 11:51 AM
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