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Light-emitting diode deviate from the calibration position, the light reflected from the photovoltaic panels could not reach the photodiodes. At this point, to be patient and adjust the position of the light-emitting tube, making recovery in situ until moving to the horizontal and vertical directions, until the pointer is the most sensitive position, and then a small amount of 502 the glue fixed light-emitting tube, close the lid can be.(3) external light effects. In order to prevent the influence of the outside light, the exposed portion of the lens assembly is covered with opaque black paper, so that the light transmitted in the black box, if the black paper is off, resulting in external light is irradiated to the photosensitive tube, will make the photosensitive the tube saturated, data processing circuit is not the right signal, resulting in lower sensitivity. ? lens channel pollution, so that the light can not be successfully reached. The reason is the poor work environment, pollution, long time, dirt attached to the LED, photodiode, lens and mirror surface, blocking the light receiving path of the optical path barrier. Processing methods with cotton balls soaked in ethanol scrub, scrub parts including the light emitting tube, lens and mirror, the surface of the photosensitive tube, pay attention to the anhydrous ethanol must be pure, otherwise it will more and more dirty cleaning can also use anhydrous ethanol after washing, aligned with the lens and reflective lens Oh breath, and then use a clean cotton swab to gently wipe until smooth as ever. ? photovoltaic panels wear or malposition. The optical mouse photoelectric board India have many small black-and-white plaid, plaid black light to be black to absorb the phototransistor will not receive the reflected light. Conversely, if the shine on the white lattice, the phototransistor can receive the reflected light. Use to maintain a clean and good photosensitive state of photovoltaic panels, while the mouse relative to the location of the photovoltaic panels to be positive, the location of the photovoltaic panels the skew or photovoltaic panels wear powerful causes the reflected light pulse deformation or blurred clear, the circuit will not recognize the result of the poor mouse sensitivity.
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