【正文】 f the window to delete part of it.② Delete all: plete the operation by using the clear screen button .J. Save the information to the device:By pressing the button , users can save the configured settings into the device or save them as default scenes to directly restore to the latest related settings when users startup the device next time, as shown below.Device saving can be divided into three functions, respectively are:① Scene saving: click add to select the added scene in the left list and set the relevant information on the right and then click save to plete the operation.②Scene covering: select the target scene to be covered and set the relevant information on the right and then click save to plete the operation.③Scene deleting: select the target scene to be deleted and then click del to plete the operation.Figure 21 scenes save(5) Scene player (scene auto switching)It is similar to scene management tools of music players, users can customize different scenes as needed, realizing the management to the play order and time among different scenes and can change the information freely. The main operation flow diagram is as follows:Scene player interface is shown below:Figure 22 Scene playerKey features include scene play, pause, increase switching and scene lists, delete, and switching. Figure 23 Scene player–scene settingsRight click and choose the new list in the left list, and then right click to choose the insert scene in the right scene playlist. Figure 24 Scene player–scene showClick the buttonto play the video. Note: click the buttonto stop the video if you need to modify or edit it.V Front panel button operationThis chapter includes:178。 Schematic view of the front panel buttons178。 Key operating instruction178。 The main operating of keys1. Front panel button diagramControl panel with LCD display, status lights, operating buttons.Figure 25 Control panel with buttons2. Instruction of buttonsThe front panel is provided with 20 keys and a Chinese / English LCD module. 20 keys are divided into 2 functional areas, the clear functional partitioning is convenient for users to operate the device, while the LCD module provides rich display information.(1) Control buttonThe main control buttons are used to do some fast operation, features a clear, easy to operate, the specific key functions in the following table:KeyDescriptionRemarkReturnReturn functionUpMove up and delete functionsDeleteCancellation functionShiftShift functionTestNullStartLighten the screen after smart wakeDownMove downEnterConfirm functionStateNullListNull(2)Numeric keysAfter being saved in upper puter, the scene is defined as a number and then is switched by using numeric keys. (3)Key operation1. Easy scene switchingPress any key to lighten LCD screen, select the scene switching by pressing up and down keys , press OK to enter the next page, then select easy switch and press ok button to switch the scenes by corresponding numeric keys according to the order to saved scenes. Scene switching includes easy switching, list switching and number switching.2. Device detectionPress any key to lighten LCD screen, select the device detection by pressing up and down keys to view the current working condition of the device.3. View the IP address of this devicePress any key to lighten LCD screen, select the device information by pressing up and down keys, press OK to enter the next page, then select view IP address of this device and press ok button to plete the operation.VI. Common failuresFailureReasonStepUnable to start the devicePower line is not plugged in properly or switch is disconnected.Check the input power to make sure it is properly plugged in and the switch is connected. Network connection is failedInternet connection problemCheck to make sure the cable is well pluggedFailure of server DHCP allocationCheck to make sure the device is accessed to LAN and passes DHCP distribution IP.Static IP setting error No PC IP address is set when directly connecting device with PC.There are same IP addresses among other devices in LANSuggest to turn off Wifi of the control puterSerial port connection is failedRS232 serial connection problemCheck and make sure USB is properly connected.Driving issue of USBCheck and make sure the driver of USB is properly installed. No images on the large screenVideo cable problemPlease check and make sure the cable connected the device with large screen is well plugged in.Output resolution SettingsPlease check and make sure the output resolution well match with the large screen.Splicing dislocation on large screen Problem of software configuration Correctly configure corresponding connection relationship between display units and output interface of device in the corresponding relationship settings under the interface of display layout of splicing software.Scene losses caused by rebooting the deviceProblem of SD cardTick the device information in the login page to check whether the SD card is damaged.Some interfaces in the input video source are crossedProblem of cable connection The input channels of device are not fully connected.After the device is electrified, it doesn39。t react or react after a long timeCommunication problemReplace the cable in ensuring that SD isn39。t damaged.Large screen displays for a while then turns into red screenIssue of user authorizationUser authorization period has arrivedIf you fail to eliminate the failure according to the above methods or the failure you found is outside of the range indicated above, please contact our technical assistance. VII Specification parametersItem3UA3UB8U12UCard input slot