Problem Reason Solution12TroubleshootingMonitor image is good, butthere is noise. Monitor sound setting is improper.1.Volume is too low.2.Sound is turned off.3.Sound system is improper.1.Adjust the volume properly.2.Press the Mute key on the remote control to turnon the sound.3.Enter " " setting change the sound system.MonitorRemote control distancebecomes short, out ofcontrol.1.Move the object to avoid blocking the receiverwindow.2.Replace the battery.PC display is blurry. 1.Adjustment is improper.2.Display mode is improper.1.Use automatic adjustment.2.Use recommended mode.PC image offset, can't fit thescreen or beyond the screen.1.Adjustment is improper.2.Display mode is improper.1.Use automatic adjustment.2.Enter "Geometry" to adjust the vertical or horizontalposition.3.Use recommended mode.Signal cable is loose or falls off. Check whether the signal cable is loose or falls off,and reconnect the cable.Can't operate the device.External factors, such as lightningand ESD, may interfere with thenormal operation.Press " " button to turn off electrical source, thenpress " " button to turn on the again after1-2 minutes.Monitor1.The receiver window is blocked.2.Battery voltage of the remotecontrol is too low.Enter setting menu and reset the soundsystem.“ "MonitorNo screen display, no sound,indicator is off.Power plug is loose, or powersupply isn't connected.1.Check if the power cord is connected properly.2.Check if the " " button on the panel is on.Monitor image has point, lineor stripe interference.The signal is interfered with byautomobile, neon light, or hair drier.Do not use hair drier near the device, reduce theinterference.Monitor doesn't have sound.PC doesn't have display, nosignal input, red indicatorflashes.Noise Signals at turning off. Electrical release at turning off. It is normal.