BenQ RM8602K User Manual - Page 78

74 Troubleshooting The remote control does not work Remote control failure Machine automatically shutdown Signal out of range Background has vertical lines or streaks Image lack of color, color is incorrect Display format that is not supported. Touch function invalid Touch positioning not correct • Have you locked the remote control function? Unlock the function and try again. • Check for incorrect battery orientation. • Check for dead batteries. • Check your distance and angle from the display. • Check whether remote control is properly being pointed at the display's remote control sensor window. • Check for any obstacle between the remote control and the remote control sensor window. • Check that the remote control sensor window is not under strong fluorescent lighting, or in direct sunlight. • Check for any devices (computer or personal digital assistant, PDA) nearby that transmit infrared signals which may cause interference to signal transmission between the remote control and the display. Turn off the infrared function of these devices. • Check whether there are other objects between remote control and television remote control receiving window, thus leading to failure of remote control. • Check whether the battery electrode in the remote control is correct. • Check whether remote control needs to replace battery. • Whether set sleep or not. • Check whether there is sudden power outage. • Check whether there is no signal automatic shutdown. • Check whether display is set correctly. • Check whether resolution is the best resolution. • Adjust line and field synchronization in menu. • Select automatic correction in menu. • Adjust clock and phase position in menu. • Check whether VGA is not well connected or has quality problem. • Adjust chromaticity and brightness or contrast in menu. • Select automatic correction in menu. • Adjust clock and phase position in menu. • Check whether touch driver is installed and started. • Check whether the size of article touched is comparable with finger. • Check whether driver is properly installed and make correction. • Check whether touch pen is facing the screen.