When Select All is selected, the default value (50) returns.Changing a value in this screen will automatically change the mode to "CUSTOM."1) Audio- Controls audio settings for all input sources.2) Bass- Adjusts Bass of the selected display.3) Treble- Adjusts Treble of the selected display.4) Balance- Adjusts Balance of the selected display.5) Dolby Virtual- Dolby Virtual Sound On/Off of the selected display.6) BBE- BBE Sound On/Off of the selected display.7) Sound Select- Select either Main or Sub when PIP is On.This feature is available only for the displays whose power status is ON and if no selection ismade, the factory default is displayed.The Input source of MagicNet works only on MagicNet model.8. Settings Control - Image Lock1. Click Settings of the main icons and the Settings Control screen appears.Info Grid shows some basic information necessary to Settings Control.1) Image Lock- Available only for PC, BNC.2) Coarse- Adjusts Coarse of the selected display.3) Fine- Adjusts Fine of the selected display.4) Position- Adjusts Position of the selected display.5) Auto Adjustment- Self-Adjust to the incoming PC signal.Settings Control is available only for the displays for which the power status is ON.The Input source of MagicNet works only on MagicNet model.9. Maintenance Control - Lamp Control1. Click on the "Maintenance" icon in the Main Icon column to display the Maintenance screen.