What is the reason that the mouse can't move up and down?

Hardware Failure Analysis: the use of the process, the mouse ball contaminated with dust, hair crumbs and other debris, will also lead to reduced flexibility or even temporarily lose their role. If you find out when the mouse cursor is not moving or moving very hard, flip over to check, Ten is the mouse ball glued on the stolen goods. Clear it back to normal.

Wheel of the mouse to remove the wheel, cleaning the rollers and the mouse on the roll of dirt, general can be used normally.

For optical mouse, see the following workaround:

Move the mouse, the cursor response is not as fast as usual, feeling not to listen to the command, this is the reason for the decrease in the sensitivity of the mouse, the most common may be the lens path is dirty, the light can not be reached smoothly, who want my mouse is running on the desktop, work environment so bad, time long, dirt of course will inevitably adhere to the luminous tube, Photosensitive tubes and other surfaces, thus shielding the light so that the receiving path is not smooth. If this is really the reason, it is also very convenient to deal with, and cleaning mechanical mouse ball of the truth, with a cotton ball dipped in alcohol gently wipe the light tube, lens, reflector and photosensitive tube surface, as long as the feeling of light as new OK!

Also has a possibility is because the mouse's luminous tube or the photosensitive element aging (does not rule out the bad factory use unqualified fitting the reason), causes the mouse sensitivity to descend. Because the core chip (Figure small black block) of the photovoltaic Mouse is integrated with a constant current circuit that will keep the luminous tube working current constant at 50mA, the general name of the mouse are intermittent sampling technology, send intermittent conduction sampling frequency of about 5KHz of current, so that the sensitivity of the mouse is greatly improved, the cost is correspondingly increased a little bit. And some photoelectric mouse manufacturers want to reduce costs, not using intermittent sampling technology, but also want to improve the sensitivity of the mouse, had to artificially increase the current of light-emitting diodes, to increase the transmission power. The most immediate consequence of this method of killing the goose is the premature aging of the light-emitting diode, resulting in poor sensitivity. At this point, only the replacement of the same type of light-emitting tube to remedy, of course, this is the worst plan, generally will not encounter. In fact, there is a little circuit basis also want to prove their hands on the ability of the friend is completely can be done, and the pursuit of efficiency of friends can also go to buy a new, anyway, the price of photovoltaic mice is also very appropriate.

In addition to the decreased sensitivity, the photoelectric mouse also often appears the pointer drift or the position is inaccurate, this is mainly because now some mouse in order to pursue the fashionable appearance transparent modelling, once the light path shielding is not good, plus around if has the strong light interference, very easily causes the outside light to affect the mouse interior photoelectric signal transmission, The resulting interference pulses can cause the drift of the pointer. It is almost impossible to cure this defect by yourself at the moment. The only way is to pay attention to whether the product's shell is too transparent.

If your mouse shell is not transparent, but also appear drift condition, it is likely that the mouse Board circuit has virtual welding, virtual welding will interfere with the normal circuit generated by the pulse. It's going to take a little bit of thought to fix your mouse this time, not only test your knowledge of electronics, but also to test your careful, because you need a check circuit solder point, if found the virtual solder point, with your electric iron, lightly point on a spot welding tin even is done.