132 Overview of Navigation and ControlsPlease note the following contents are based on our CJ-HDR416A product. For detailedoperation instruction of other series products, please refer to the User’s Manual included in theresource CD.Before operation, please make sure: You have properly installed HDD and all the cable connections. The provided input power and the device power are matched. Always use the stable current, if necessary UPS is a best alternative measure.2.1 Boot up & Shut Down2.1.1 Boot upBefore the boot up, please make sure: The rated input voltage matches the device power on-off button. Please make sure the powerwire connection is OK. Then click the power on-off button. Always use the stable current, if necessary UPS is a best alternative measure.Please follow the steps listed below to boot up the device. Connect the device to the monitor and then connect a mouse. Connect power cable. Click the power button at the front or rear panel and then boot up the device. After devicebooted up, the system is in multiple-channel display mode by default.NoteAfter start up, there is black screen for a while. This is due to HDD file scanning function whilemonitor search for display source. After file scanning is done, information of "System is initializing,please wait..." will display.2.1.2 Shut DownNote When you see corresponding screen “Saving data…”, do not click power on-off button directly. Do not unplug the power cable or click power on-off button to shut down device directly whendevice is running (especially when it is recording).There are three ways for you to shut down. Main menu (RECOMMENDED): From MAIN MENU -> OPERATION -> SHUTDOWN,select Shut Down button. From power on-off button on the front panel. Press the power on-off button on the DVR frontpanel for more than 3 seconds to shut down the device. From power on-off button on the rear panel.