5, there is strong electromagnetic interference with the surrounding environment, can lead to remote control temporarily not working.There could be obstruction between the emitter of 5mW laser pointer and the receiver.
Solution: Please use USB cable to connect the receiver to the computer, increase the distance the receiver and the host computer, host computer in order to reduce the impact of electromagnetic wave to the receiver. The 100mW laser pointer products transmit and control signals by radio wave. Others such as audio, amplifiers, amplifier, projector and so will the receiver electrical equipment produces electromagnetic interference, please try to stay away from these machines, or equipment temporarily closed until the electromagnetic interference can be restored to normal after the cessation of work.
6, the metal shield: Some audio-visual cabinet is made of metal, if the receiver is placed inside the metal cabinet will directly affect the remote effect.
Solution: Please use the USB extension cable to link receiver and the computer and put the receiver on the outside of the metal cabinets can avoid this problem.
7, some computers (such as a computer classroom audio-visual cabinet) have installed a fixed USB extension cable, in which case please put the receiver into the jack with the USB cable, do not use this product simultaneously with the USB extension line. Most manufacturers prefer to produce the red Green laser pointer.Reasons: the receiver (or U disk) needs to work properly operating voltage, the receiver (or U disk) and connect a USB cable between the computer when the voltage is normal, if the receiver (or U disk) and computer connected between two or more USB cable, will cause the receiver (or U disk) of the operating voltage is low, which does not work, its performance is not remote or U disk can not be used.
Solution: If we need a USB extension cable to connect the receiver to normal (or U-disk), please only use a USB extension cable, and make sure that the USB cable can transmit signals properly.
8, the computer poisoning: poisoning can lead to the remote computer can not be used, if you are using the remote control pen with U-disk, U disk may lead to infection and may even undermine the existing U disk file.Red 200mW Laser Pointer requires mature technology for production.
Solution: a thorough anti-virus.
9, the receiver is non-normal pull: with U disk normal receiver must first remove the hardware and then pull out, otherwise easily lead to U disk file is missing or damaged.
10, insert the same PC unplug the receiver again: repeatedly insert the same PC will also pull out the receiver's repeated installation and removal of hardware, which will also take up a lot of system resources, may lead to a serious computer crash.Red Blue Laser Pointer is relatively cheap to the green one.
Solution: Restart the computer.
11, Other: computer programs or files open simultaneously more significant system resources, or computer configuration is low, do not press the flip button in quick succession, because this time the remote computer is not fast processing instructions, may cause computer crashes.
