Key Test Mode (T- -04) For AM/FM CD Radio

Press the RCL button to activate the key test mode, then press each button to verify it works. If the button works, a beep will be heard after the button is pressed. If the button does not work, nothing will be heard when the button is pressed. Also, nothing will be heard when the RCL button or volume knob is pressed, but performance will be known once the desired functions are chosen. To exit the key test mode, press the RCL button.