It happens that an optical mouse randomly loses and restores its performance when the cable is shaken at the point of entry into the case. This is where the mouse cord is most often frayed with heavy use. In order to repair the manipulator, it is important to disassemble it correctly.
Instructions
Step 1
Disconnect the mouse from the computer. Find the screws on the bottom and remove them. Try to open the arm casing by prying the top cover on the side opposite to the cable entry side.
Step 2
If you cannot open the mouse, then you will have to find the place where the hidden screws are located. They are usually found under rubber feet or stickers. Please note that in the second case, removing or piercing the sticker will void your right to warranty repair of the mouse. Be sure to keep the rubber feet, as it is inconvenient to use the manipulator without them.
Step 3
With the mouse open, gently pull out the wheel. It is usually equipped with a shaft, one end of which is mounted in a split joint and the other is inserted into the bore of the encoder. With the shaft free, lift it slightly above the pivot and then gently pull the opposite end out of the encoder.
Step 4
Unscrew all screws securing the board, then release it from the latches and remove. Separate the plastic optical cover with the lens and prism from the board (they are made as a single unit).
Step 5
Leave the multi-pin connector at the end of the cable plugged into the mouse board. Use pliers to cut the cord before entering the enclosure. Strip the cable conductors. Based on the colors of the conductors entering the board from the side of the multi-pin connector, solder the cord conductors, which have the same colors, to the contact pads located on the back of the board in the place where the multi-pin connector is soldered.
Step 6
Without assembling the mouse, connect it to the computer, then check if the LED is on, and also if there is a reaction to the rotation of the wheel, pressing the keys. By putting an optical overlay on the board, you can check the reaction to movement. If a USB pointing device is being repaired, it can be connected simultaneously with another mouse, which can have both USB and PS / 2 interfaces. Note that a pointing device with a PS / 2 interface cannot be connected when the computer is already booted - it may not be detected until a reboot … After making sure everything is working, unplug the mouse again.
Step 7
Route the cable so that it does not interfere with the closing of the case, pressing of all keys and rotation of the wheel. Reassemble the manipulator in reverse order. Remember to refit even small parts such as the optical trim or rubber feet.
Step 8
Connect the mouse to your computer and make sure it works.
