The reason why clicking with the left mouse button becomes double clicking.
1. Many users think that the mouse is broken when they click the left mouse button and double-click. In fact, clicking the left mouse button changes to double clicking, which is often caused by a small fault inside the mouse. Simple maintenance can be used normally. Because the internal structure of the mouse is very simple, all the maintenance is very simple, just need a screwdriver (you can try using scissors without a screwdriver), a knife blade and some cleaning paper.
2. First, remove the mouse shell with a screwdriver. Generally, the mouse has only one screw, so the disassembly is very simple. After the screws are removed, we can open the shell carefully. After opening, we can see that the internal structure of the mouse is quite simple. No wonder the mouse is cheap. Just a small circuit board and some contact modules. Because there is something wrong with the left mouse button, we focus on the left mouse button shock module.
What should I do if I click the left mouse button instead of double-clicking?
1. Then what we need to do next is to disassemble the left mouse button contact module carefully, and check whether there is dust in it and whether the internal contact is in good contact with welding. After disassembling the left contact module, you can see that there is a copper sheet inside. This kind of copper sheet is usually thin. We need to take it out carefully and clean it up, because sometimes the copper surface is oxidized, which may lead to poor contact and easy to double-click with the left mouse button.
It should be noted that the copper sheet is very thin, so don't break it, otherwise there is really nothing you can do. Gently pry open the bayonet to remove the copper sheet, and then we can see a contact on the copper sheet. You can gently wipe the contact point with sandpaper or file, wipe off the oxide layer until you see the light, and then clean the copper base with cleaning paper or alcohol, and we can put it back carefully.
Matters needing attention in daily use of mouse
1. The mouse is a device that controls the cursor position manually. This system usually uses two keys or pc mouse. Avoid using the mouse on clothes, newspapers, carpets, rough wood and other surfaces with low finish.
2. The mouse is connected to the interface of the backplane of the host device through a mouse cable. Insert the plug at the end of the mouse cable vertically into the connector on the back panel of the device. Do not hit the mouse to avoid poor contact.
3. Operate the mouse to determine the cursor position, select the menu item to run from the menu bar, and move the copied files between different directories to speed up the file movement. The mouse should not move in the box.
4. You can define mouse buttons, such as selecting objects or giving up. These functions depend on the software used. It is forbidden to use the mouse under high temperature and strong light, and it is forbidden to put the mouse in liquid.
Further reading
Frequently asked questions about optical drive and mouse.
First, the optical drive
Optical drive is one of the accessories with the shortest service life in computer hardware. In fact, many scrapped optical drives still have great use value, as long as they are repaired a little. This usually does not require any advanced radio expertise, nor does it require the use of any complicated maintenance tools and materials. As long as you carefully observe the fault phenomenon and refer to the following troubleshooting methods, I believe that the old CD-ROM drive can still restore its former "style".
Common fault 1: the hard disk light keeps flashing when the optical drive is working.
This is an illusion, but it is not. The hard disk light flashes because the CD-ROM drive and the hard disk are connected with an IDE interface, and the CD-ROM also controls the hard disk light when working. The optical drive unit can be independently connected to the IDE interface.
Common failure 2: When operating the CD-ROM drive in Windows environment, it displays "32-disk access failed" and then crashes.
Obviously, the 32-bit disk access of Windows has a certain influence on the CD-ROM drive. Most CD-ROMs are IDE interfaces connected to hard disks, which do not support Windows' 32-bit disk access function, resulting in Windows crashing due to internal errors. After entering Windows, double-click "Control Panel" in the "Main Group" to enter the "386 Enhanced Mode" setting, click the "Virtual Memory" button and then click "Change" to close the "32-bit disk access" verification box in the lower left corner. After confirmation, restart Windows, and then access the CD correctly in Windows.
Common fault 3: the optical drive can't read the disk normally, and the screen shows: "There is no disk on drive X, please insert a disk and try again", or "CDr 10 1: Not ready to read drive X.. Try again. fall? " Occasionally, I watched the disc several times in and out of the box, but I didn't finish it quickly.
In this case, the virus should be detected first, and the whole machine should be checked and disinfected with anti-virus software. If no virus is found, you can use file editing software to open "CONFIG". SYS "file to see if the CD-ROM drive hangs and the drive is damaged, and then handle it. You can also use text editing software to check whether there is "MSC dex. exe/d:mscdoo/m:
Common fault 4: read and write errors or no disk prompts when using the optical drive.
This phenomenon is mostly caused by operating the optical drive before changing the disk. All operations on the CD-ROM drive must wait until the CD-ROM indicator light is just in place. When playing a DVD, you should also set the time to zero before changing the disc to avoid the above errors.
Common fault 5: the picture is paused or broken when playing the movie VCD.
Check "SMARTDRV" in AUTOEXEC. Bat files are placed after MSCDEX.EXE. If so, put the SMARTDRV statement before MSCDEX.EXE, and change the high-speed party-to-party grounding program without using the CD-ROM to SMARTDRV.EXE/U,, and the fault can be eliminated.
Common fault 6: When the optical drive reads data, it sometimes fails to read and the reading time becomes longer.
The hardware failure of CD-ROM drive is mainly concentrated on the laser head assembly, which can be divided into two situations: one is that the laser tube is aging due to too long use; The other is that the surface of photoelectric tube is too dirty or the lens of laser tube is too dirty and deformed. Therefore, when adjusting the power of laser tube, it is necessary to clean the lens of photoelectric tube and laser tube.
The cleaning method of photocell and focusing lens is: unplug a set of cables connecting the laser head assembly, remember the direction, and disassemble the laser head assembly. At this time, you can see that the sheath covers the focusing lens of the laser head. After removing the sheath, you will find that the focus lens is connected with the focus tracking coil through four thin copper wires, and the photoelectric cell assembly is installed in the small hole directly below the lens. Wrap cotton with fine iron wire and wipe it with a small amount of distilled water (alcohol is not allowed to wipe the surface of photocell and focusing lens), and see if the lens is hung horizontally against the laser tube, otherwise it must be adjusted. At this point, the cleaning work is completed.
Adjust the power of the laser head. There are 1 small potentiometers similar to cross screws on the side of the laser head assembly. Record its initial position in color. Generally, it should be rotated clockwise by 5 ~ 10, but not counterclockwise when the machine is installed, until the disk can be read smoothly. Be careful not to rotate too much to avoid burning out the photovoltaic cell because of too much power.
Common fault seven: the CD-ROM drive can't be detected or failed to be detected when it starts.
This may be caused by loose connector of data cable of CD-ROM drive, damaged data cable of hard disk or wrong jumper setting of CD-ROM drive. When you encounter this problem, you should first check whether the data cable connector of the CD-ROM drive is loose. If you find that it is not plugged in properly, plug it in again. If this still doesn't solve the problem, you can try to find a new data cable. At this time, if the fault still exists, I need to check the jumper setting of the CD, and I can change it if there is an error.
Second, the mouse
Common failure 1: mouse not found.
1. The mouse is completely damaged and needs to be replaced with a new mouse.
2. The mouse has poor contact with the host serial port or PS/2 port. After carefully connecting the cable, restart.
3. The serial port or PS/2 port on the motherboard is damaged, which is rare. If this is the case, we must replace the motherboard or use the serial port on the multi-function card.
4. Poor mouse line contact is the most common situation. Poor contact points are mostly at the connection between the wires inside the mouse and the circuit board. As long as the fault is not at the PS/2 connector, it is generally not difficult to repair. Usually because the line is short or messy, the mouse line is pulled hard. The solution is to turn on the mouse and then weld the solder joint with an electric soldering iron. There is also a situation that the mouse cable is caused by poor internal contact and long-term aging. This kind of fault is usually difficult to find, and replacing the mouse is the fastest solution.
Common fault 2: the mouse can display, but it can't move.
The flexibility of the mouse is reduced, and the mouse pointer is not as arbitrary as before, but slow in response, inaccurate in positioning, or simply unable to move. This situation is mainly due to the accumulation of too much dirt on the mechanical positioning roller in the mouse, which leads to transmission failure and inflexible rolling. Maintenance focuses on the X-axis and Y-axis transmission mechanisms inside the mouse. The solution is to open the rubber ball lock plate, take out the mouse ball, wash the rubber ball with clean cloth dipped in neutral detergent, and scrub the friction shaft with alcohol. It is best to drop a few drops of sewing machine oil on the shaft, but be careful not to flow to the grating gap between the friction surface and the code wheel. After all the dirt is removed, the flexibility of the mouse is restored.
Common fault 3: mouse button failure
1. The mouse button does not move, which may be because the distance between the mouse button and the microswitch on the circuit board is too far or the resilience of the click switch decreases after a period of use. Disassemble the mouse and stick a plastic sheet with moderate thickness under the mouse button. The thickness should be determined according to the actual needs, and it can be used after processing.
2. The mouse button can't bounce normally, which may be caused by the fracture of the bowl-shaped contact piece in the microswitch below the button, especially the plastic reed is easy to break after long-term use. If it is a pc mouse, you can remove the middle key for emergency. If it is an original brand-name mouse with good quality, you can weld it, disassemble the microswitch, carefully clean the contacts, apply some grease and install it.