5. Graphic User Interface (GUI)Use the arrow keys (Menu Navigation buttons) to navigate to the desired menu item (2). The background color changes to lightblue.Press the Menu Selection button (center key of the arrow keys), also called OK button, to activate that item and to jump one leveldeeper (3).Use the numeral keys to enter values, or use the arrow keys to move the bar scale up or down.Press the Back button to go up one level (4).Image 5-3Home menuRemark: a blue slider bar on the right side of the window means that there are more items to show than those currently displayed.Define valuesMenu settings are displayed using check boxes, bar scale sliders, and drop-down lists.To set a value:• Press OK to select or deselect a checkbox (turn a function ON or OFF).• Use the arrow keys to move the bar scale slider up or down on the value line. For a bar scale 0-9, each step will equal 10% ofthe total value.• To enter the value as a direct number, press OK, input the digit(s), and then press OK again to execute and exit cursor modee.g. OK 79 OK.Within an input field, use the * button as backspace button to remove an entered digit. Use the # button to enter a dot (.).Changes to values are implemented dynamically.To enter values with the local keyboard, use the arrow keys to select the first digit, press OK. Select the second digit and press OK.Continue until all digits are entered. Close the action by selecting the enter (↵) button and press OK. Select the backspace buttonand press OK to remove the last entered digit.Menu memoryThe OSD menu remembers the last selected sub-item as long as the projector is running. The menu memory is reset when restartingthe projector from standby.5.3 Test PatternsHow to use test patterns1. In the main menu, select Test Patterns.Or,Push the Test Patterns button on the RC or on the local keypad.Image 5-4Main menu, Test Patterns2. In the Test Patterns menu, select either Internal, or Output test patterns.3. In the chosen submenu, select the desired test pattern from the list.You can select one of the following Internal test patterns:34 R5906112 UDX SERIES 24/05/2017