Product Overview11PLM Series Operation Manual rev 1.1.9Please refer to chapter 7 for further details.Dynamic Function Buttons with LEDs (Right of LCD)The function of these buttons change according to the currently selected view or menu.▸ In Menu Mode they are used for menu navigation and for parameter selection▸ In Meter Mode they provide PLM output mute/unmute functionality in conjunction MUTE ENABLEAll LEDs provides mute, clip, fault and warning indications for the PLM power outputs channels.Please refer to chapter 7 for further details.Communication LEDThe high-intensity white LED illuminates white to indicate that the Module/Frame is selected in theLake Controller; it flashes white to indicate communication with the Lake Controller.The brightness of the LCD and communications LED can be adjusted in the Frame page of the Main Menuon the front panel.Rotary EncoderThe rotary encoder is used to modify various parameters (e.g. input level) via the menu. When a menu itemis selected that permits adjustment of parameter values, the ring around the rotary encoder illuminates. InHome View the encoder can be used to scroll through the Meter Views.ExitThe EXIT button is used primarily while navigating the menu system in Menu Mode; pressing EXIT willreturn the menu up one level. In Meter Mode, pressing EXIT returns the metering display to the defaultHome View.