ProfessionalFM Transceiver14SUMMARYNOTE: If all LED lights have set off, then the screen will not lights up when power on. Thetransceiver sounds beep to indicate radio power on successfully. If the user prohibit volume/voiceprompt function,no voice for power on.Power on the radioAdjust VolumeTurn on the radio by turning the Volume switch clockwise till a click is heard, and you will hear aPower up beep if the dealer has set it. Then the screen display DMR and the radio name you haveedited. LED lights green, if the backlight have been set auto open, then the screen lights up.Rotate the Power/Volume knob to adjust the volume. Turn clockwise to increase the volume andcounterclockwise to decrease the volume.