Do-it-yourself wireless mouse repair
The mouse is a device that helps the user to work on the computer. With its breakdown, many users do not know as far as possible, from the keyboard, switch to the desired system icons. This situation leads to the completion of the session and the search for service centers for the repair of electronic equipment, or to the acquisition of a new device. If you possess such qualities as assiduity, attentiveness, ability to work with a tester and a soldering iron, then you can easily determine the cause of a device failure and even fix it, using the information provided. Consider repairing a wireless mouse with your own hands. Causes of damage. Since the mouse is a reliable technology, therefore, in many cases, the damage will be minor. It can occur for a reason: 1. Bad contact between battery and control board. 2. The failure of one of the electronic components. 3.Disruption of the USB port of the computer. Identification of the cause of the malfunction and methods for eliminating it. To begin researching a broken device, you must disconnect it from the power supply, remove the wireless module from the USB of the computer, and remove the battery. To get to the control board in most models, it is enough to unscrew the fasteners placed under the battery and using a flat screwdriver to detach the upper part of the case from the latches.Visually or using a multimeter to check the position of semiconductor devices stigma explore pros and cons, connecting wires and solder joints for the presence of oxides and mechanical damage. Due to strong vibrations, mechanical stresses in the joints of elements with board tracks, microcracks can occur.To identify them, you need to be very carefulinspect and stagger the fixings of wires, electronic components of the board. When identifying suspicious or defective areas, they should be qualitatively soldered. If the measures described above did not ensure the recovery of the device, check its resistance on the power stamps. It should be in the range of 400 - 600 ohms. If the ohmmeter shows zero, then there is a short circuit in the electronic circuit, if the unit is open. In these situations it is necessary to check the electronic components. Detected charred, swollen devices should be replaced. To check the photodiode operability, connect the probe from the “V +” port to its positive input, and the probe from the COM port to the negative one. In this case, the multimeter is switched to the diode test mode. Turn on the camera of the phone and direct its lens to the photodiode. A serviceable element will glow in the displays.If, after all these measures, the mouse did not work, check the health of the wireless module with a USB plug. With the probe from the COM port we touch track 2, and with the other probe we touch track 1.Indications should be 600 - 800 Ohm.To test the USB port of a computer, it is enough to connect a working device to it, such as a keyboard or memory drive . If, after connecting, the software responds, then the port is in working condition. In other cases, when the failure was not repaired, the chip must be replaced.