1. How to deal with the situation that the machine is not powered on?
答:①The power adapter is not firmly connected to the unit or inserted into the power socket; the power adapter is re-inserted or the battery is installed.
② Check whether the power switch has been put on the ON position, and re-push the power switch.
③Check whether the battery is reversed.
2. How to deal with the situation that the horn of the machine is silent?
答:① the volume is adjusted to the minimum. Push the volume knob to increase the volume.
② sound output from headphones unplug the headphones, and the volume will return to output from the local speakers.
3. How to deal with the situation that the machine cannot play the disc?
答:① turn the front and back of the disc upside down, and place the disc face down.
② the disc is dirty, take out the disc and clean it.
③ this machine is not compatible with this disc, put it into a playable disc.
4. How to deal with button failure?
答:Check whether the button is stuck and release the button.
5. How to deal with the invalid button?
答:Check whether the hold switch has been locked. Long press EQ / hold key to unlock
6. How to deal with the battery without charging?
答:Check whether the charging switch is turned to the on position and push the charging switch again.