MecPower Tecway Happy Dog, Технические характеристики, руководство по установке и эксплуатации

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increase the sensitivity of token tolerance, that is, the range of
accepting the token tolerance will be larger. Counterclockwise:
decrease the sensitivity, that is, the range will be smaller and choose the
token more strictly.
4.2 Volume Adjustment
Volume Adjustment: Open the front door, find out the potentiometer on the
sound board, screw the volume potentiometer to adjust the volume. Screw
the potentiometer CW will get loud, screw potentiometer CCW will get
low.
音量电位器
声音板
声音板
Sound Board
Sound Board
Volume Potentiometer