22Step 4: If you are not going to use the product for an extended period of time, werecommend you to switch the power switch to “Off”.Step 3: In the Warning dialog box, click Cancel. You can save files if desired. Afterfiles are saved, return to Step 2. Click Confirm, and the power indicator willturn to red.If the cursor position has a big deviation from the actual touch point, calibration is used toeliminate the deviation. Positioning is required in the following scenarios:● The internal PC is used.● A computer is connected through the HDMI or DisplayPort interface.If the positioning is not correct, perform the following operations to calibrate again. Thefollowing takes Windows 10 as an example:Step 1: Ensure that the HDMI or DP interface and external products are connectedproperly.Step 2: Select the corresponding Windows signal from the signal source menu. TheWindows page will be displayed.Step 3: Select Tablet PC Settings on the Control Panel page.● If an internal PC is equipped, the internal PC and the screen are powered offsimultaneously when you power off the system.● Do not forcibly disconnect the power supply of the screen when the internal PC is on.NoteInterface operation on the Smart system does not need positioning. External productswith Microsoft Windows 7 or later versions will require positioning.NoteCalibration