Icom A220 TSO Instruction Manual - Page 30

5 MENU MODE DDGroup memory channel display "GRP MEMORY" Select whether the label is displayed or not. • CH: Only the memory channel number is displayed. • LABEL: The label is also displayed. D Transmitting microphone selection "TX MIC SEL" Sets the active microphone when pushing microphone's PTT switch. The item allows you to control which connected microphone is permitted to transmit. • MIC1:  Selects microphone 1. • MIC2: Selects microphone 2. • MIC1+2:  Selects both microphone 1 and microphone 2. D Dimmer mode "DISP MODE" The dimmer function dims function display and key illumination brightness. You can select a desired dimmer functioning mode to suits your preference. • OFF: The dimmer function is OFF. • AUTO: Automatically sets the dimmer according to the current lighting condition. • MANUAL: M anually sets the dimmer in the Manual dimmer control "DISP MAN" item. (p. 21) DDDimmer auto mode "DISP AUTO" Sets the method to automatically control the dimmer brightness.* *Displayed only when the Dimmer mode "DISP MODE" item in the Configuration menu is set to "AUTO." • PHOTO: Controls the dimmer brightness by using the light sensi- tive detector. (p. 2) • EXT: Controls the dimmer brightness by using an external volt- age. DDExternal dimmer control "DISP EXT" Sets the maximum voltage for the external voltage dimmer control. *Displayed only when the Dimmer auto mode "DISP AUTO" item in the Configuration menu is set to "EXT." • 14VDC: The maximum external voltage is 14 V DC. • 28VDC: The maximum external voltage is 28 V DC. DDDimmer brightness (Low) "DISP LOW" Sets the minimum brightness level in the automatic adjustment range.* *Displayed only when the Dimmer mode "DISP MODE" item in the Configuration menu is set to "AUTO." • OFF: Turn OFF the minimum dimmer brightness setting. • 001 to 049: Sets the minimum dimmer brightness level to between ­1 and 49. 23