1. There is no response when booting up
Answer: Check whether the input power is normal. Check whether the power switch is turned on.
2. The lights are not bright
Answer: Check whether the power supply and connectors are normal. Check whether the light bar is damaged.
3. Cannot scan QR code to pay
Answer: Check whether the payment box is bound to the connection. BCheck the power supply of the box.
4. No sound
Answer: Check whether the set volume is turned off and on. Check whether the motherboard and speaker cables are normal.
5. The advertising player does not play
Answer: A. Check whether the memory card is connected properly. B. Check whether there is a file or the format in the memory card is normal.