19Source namesmenu itemAt this menu item you can activate and disable external sources, and assigna plain text name to each source; this name then appears in the screendisplays.When you call up this menu item using the button, a list of all theexternal and internal sources of the SDV 3100 HV appears. Each source isfollowed by the assigned name, or if you have disabled the source concernedthe note 'disabled'.If you want to activate / disable a source, or change the plain text name,navigate to the appropriate line.To activate a source, press the green button; a long press on thegreen button disables the source.To change the plain-text name, move to the appropriate line and press thebutton. Now use the alpha-numeric keypad of the F3100 to change the nameas required, then confirm your choice with ; this saves the settings forthat source.The button is used to switch between numeric and alpha-numericinput, and between capitals and lower-case letters.Letters can be erased by pressing the -button. The source name can only be changed for the external sources.If you should wish to restore the factory default source name, erase the wholename before saving the empty field with the button: this action resetsthe display to the standard source names.The only available method of entering the name is to use the alpha-numerickeypad on the remote control handset.sub pointPass throughIf you wish to connect a device with its own volume control (e.g. TV set), thismenu point can be used to disable the volume control of the SDV 3100 HV forthe Analog IN 1 or Analog IN 2 input (pass-through mode). You should only select this setting if a device with its own volume control isconnected to the unit. Ensure that the volume of the source device is turneddown to zero before connecting it to the SDV 3100 HV, otherwise thespeakers connected to it may be ruined through overloading.Headphone modemenu itemThe SDV 3100 HV detects headphones automatically.In the “Automatic” setting the pre-amplifier output is automaticallyswitched off when headphones are connected. If you wish to be able tocontrol these outputs separately, select the “Manual” setting.Left rotary knobmenu itemUnder this menu item you can define the main function of the left rotaryknob. The set main function can be operated without pressing the knob first.For the second function, the knob must be pressed briefly first.Select "Volume/Source" when volume control should be the main function orselect "Source/Volume" if source selection is the main function.Display Brightnessmenu item(screen brightness)At this point you can adjust the brightness of the integral screen to suit yourpersonal preference for normal use. We recommend that brightness settings 6 and 7 should only be used whenthe screen is difficult to read due to very bright ambient light.A lower brightness setting will extend the useful life of the screen.