Panasonic Light Pen 2 Operation Manual
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21 Troubleshooting (continued) Q2: When calibrating the LightPenII, the green + mark will not turn blac\ k so I cannot proceed. A: This could be caused by one of the following. 1. Check the following.Does the pen or pointer have enough battery charge? z Is the tip of the pointer or pen in shadow on the screen? If the sensor \ cannot detect the LED in the tip of the z pointer or pen, it will not function. Do not put the pen tip in shadow. The recommended angle is 25º. 2. The surrounding light might be too bright. Move light sources further away from the CMOS sensor and screen. This problem occurs frequently in the following situations. Sunlight is entering through a window near the screen z There is a light source near the sensor or screen z 3. When using Windows Vista or Windows 7, the + mark at the bottom left of the screen might be hidden by the start icon. In this case, place the tip where you expect it to be and pr\ ess the button. Q3: The tip of the pointer and the mouse pointer position are not the sa\ me. A: This could be caused by one of the following. 1. Calibration was not conducted accurately. 2. After calibration, the projector or screen was moved. 3. The computer resolution was changed. Recalibrate in any of these cases. Q4: The mouse pointer jumps around regardless of the movement of the poi\ nter tip. A: This could be caused by one of the following. 1. There might be interference from a strong light nearby. Block nearby light from reaching the screen. (See Q2 above.) 2. Since remote control use can cause malfunction, do not use one when usin\ g the interactive functions. Q5: When the computer is restarted from standby mode, LightPenII does no\ t work. A: When a computer is put into standby mode, its USB ports might be shut down. Quit the LightPenII program once and then restart it. (See Q1 above.)
22 Troubleshooting (continued) Q6: Why does this message appear? “Strong lighting in the environment\ may cause light pen to stop functioning normally.” A: The surrounding light is too bright. Interfering light can appear white \ as shown below. Move those light sources or the screen, turn the lights off, use curtains or try other means to prevent such interference.
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