Troubleshooting 113About troubleshootingIf you are experiencing difficulty operating your radio,you may find the following sections helpful. Consultyour radio provider for assistance, if necessary.When your radio won’t turn onIf the red, green and orange LEDs on the control headdo not light up when the radio is turned on, it isprobable that power is not reaching the radio. Checkthe following:■ Is the power connector firmly plugged into the rearof the radio?■ Are the in-line fuses in good condition?■ Is the power cable securely connected to the vehi-cle battery or power supply?If all appears to be in order, but your radio still fails tooperate properly, contact your radio provider forfurther assistance.Identifying the radio’s audibletonesThe radio’s audible tones can help you identify apotential problem. See "Audible tones" on page 30.