What is the problem with the Indy digital clock that displays all the numbers?

The Indy Digital Clock, which displays all numbers, is usually caused by insufficient power.

The power supply of the electronic clock belongs to the battery power supply, the stability of the power supply and the system exists a large correlation, if the power is insufficient, the battery power supply is unstable, there will be a digital display confusion, inaccurate time recording and so on.

If the battery is excluded, then there may be a problem with the digital tube.

Electronic clock is a digital circuit to display the seconds, minutes, hours of the timekeeping device, compared with the traditional mechanical clock, it has accurate timekeeping, display intuitive, no mechanical transmission device, and other advantages, and therefore widely used. With the continuous improvement and beautification of people's living environment, digital electronic clocks can be seen in many occasions.