How to solve the problem of cashier computer keyboard failure

All keys of Yinbao are malfunctioning

The interfaces are different. The scanning gun interface of Yinbao computer does not match the interface of the computer. The size is different, resulting in the keyboard and code scanning. The gun didn't respond. If a conflict occurs, the installation of the computer's SCSI device is complicated. If there is no SCSI card on the computer, it is easy to cause a hardware conflict, causing the scanner and keyboard to be unable to be recognized.

First check whether the touch screen is normal, because the mouse can be used to rule out software problems, we only need to start with the hardware. Re-install the touch screen driver, restart the computer and try again, it should be fine.

The solution to the problem that the Yinbao cash register power supply cannot be turned on is as follows: 1. First, check whether the power supply is normal. 2. If there is no response when pressing the power button, it may be that the built-in power supply of the cash register is broken or the external adapter is broken. 3. When you press the power button, you can hear the fan sound, and then it goes off by itself after a while. Maybe the motherboard or power supply is bad.

What to do if part of the keyboard of your laptop suddenly fails!!!

1. If none of the above methods can solve the problem, you need to go to the after-sales center for inspection and replacement. There are generally two situations when laptop keys fail. One is that the driver is damaged, and the other is a problem with the keyboard itself. Sometimes laptop keys fail, and most people think that the keyboard or the internal devices of the laptop are damaged.

2. Solutions to laptop keyboard failure: 1. Change the document program to test and create a new Word or TXT document. If the problem occurs with individual software, consider individual software issues. 2. Enter the safe mode of the system to test whether it can be used. If it can be used in safe mode, it may be a system or software problem.

3. Restart the computer and modify the registry. Modify the value of the registry: "Start" - "Run" - enter "regedit", open the registry, the path is "HKEY_LOCAL_MACHINE\ SYSTEM\ControlSet001\Control\Keyboard Layouts".

4. You can try to solve the problem by reinstalling the driver and system. If the external keyboard is normal, it proves that the built-in keyboard is faulty; use keyboard key position modification software to block this key and use other keys or key combinations to replace it; you can search for "Keyboard Modifier" software on Baidu, download and install it and change this The function of the button is sufficient.

5. If some keys on the laptop keyboard fail, you can replace the laptop keyboard, use a USB keyboard or wireless keyboard, or use an on-screen keyboard.

6. The solution to the failure of individual notebook keys is as follows: Find the cause of key failure. Generally, it is because there is a problem with the circuit board inside the computer keyboard. The circuit board or conductive plastic inside the keyboard has not been clean for a long time and has dust, resulting in the circuit being unable to be connected. This causes some keys to malfunction.

What to do if your laptop keyboard fails

1. Restart your laptop: Sometimes, keyboard problems may be caused by a temporary software failure. Restarting your computer can clear these temporary problems. Clean your keyboard: Dust and dirt on your keyboard can cause keys to malfunction. You can use compressed air or a small brush to remove dust and foreign matter from your keyboard.

2. You can use "Last Known Good Configuration" to restore the computer configuration to solve this problem. Of course, if there is a problem with the laptop hardware, the keyboard will not respond. If this is the reason, we have to send it for repair, but generally laptops have a warranty period.

3. Of course, problems with the laptop hardware will also cause the keyboard to become unresponsive. If this is the reason, the only option is to send it for repair. However, generally laptops have a warranty period. If there is a problem during the warranty period, maintenance costs are generally free. If the warranty period expires, a certain fee may be charged.

What should I do if the keys on the keyboard don’t work?

Loose keyboard interface and poor contact can also cause keyboard keys to malfunction. You can try plugging and unplugging the keyboard again. We can use a multimeter to detect whether the computer keyboard is damaged.

Check that the keyboard has power. You can press the Caps Lock key on the keyboard and see if the indicator light is on. If the indicator light is on, it is very likely that the hardware of your keyboard is broken. If If the indicator light does not light up, it is possible that the cable is not connected properly and the keyboard is not started.

The key recovery method for malfunctioning keyboard shortcut keys is as follows: Method 1: The "Fn W" shortcut key can quickly help you restore the keyboard. This shortcut key is suitable for most computer models. Some users of win8 system models can try it. Press "ctrl Fn Alt W".

Check the conductive plastic of the failed part of the button. If there is too much dirt on it, wipe it with alcohol. If the conductive plastic is damaged, it is recommended to replace the conductive plastic on the infrequently used keys with the damaged part. This can at least extend the life of the commonly used keys.

What to do if the computer keyboard fails

Loose keyboard interface and poor contact can also cause keyboard keys to malfunction. You can try plugging and unplugging the keyboard again. We can use a multimeter to detect whether the computer keyboard is damaged.

Blow the trash away. Use a hair dryer to blow against the gaps between the keyboard keys to blow off the attached garbage, then turn the keyboard over again and shake it downwards to tap. Scrub the surface. Some people are used to wiping their keyboards with a wet rag and think this is also very clean. There seems to be no need to use a special computer cleaner.

Click the computer's numlock key to release the function. Press the CapsLock key to release it. Press the NumLook key in the upper right corner of the keyboard area to release it. You can use some optimization software to delete all startup items, and then restart the system to restore the computer keyboard to normal.

First check whether the keyboard cable is damaged or disconnected. If there is any damage, just connect it. If your keyboard is wireless, check to see if it's out of battery or if the transmitter isn't set up properly. If the keyboard itself is not damaged and the connection is normal, consider whether the driver was accidentally deleted.

Update BIOS to the latest version and update Windows Update. Reinstall the driver in Device Manager 2- Enter [Device Manager]① in the Windows search bar, and then click [Open]②. 2- Uninstall the keyboard driver. Click the triangle ③ next to the [Keyboard] device type.

How to solve the problem of computer keyboard failure

1. How to solve the problem of computer keyboard failure. Method 1: First, "win R" brings up the command window, enter the command "powercfg.cpl", and press Enter. Then click "Choose what the power key button does." After entering, click "Change settings that are currently unavailable".

2. The method Fn W shortcut key can quickly help you restore the keyboard. This shortcut key is suitable for most computer models. Some users of win8 system models can try pressing ctrl Fn Alt W. The reason why the Fn key is used is because it can be combined with F1F12 to form various key combinations to make up for the lack of keys on the laptop.

3. Check whether the wired keyboard is properly connected to the host port, and whether the wireless keyboard is properly connected to the computer. The power supply problem may be that the USB interface does not transmit data. Try using another USB interface. If there is a driver problem, just reinstall the driver or update the driver.

4. Press the computer’s numlock key to release the function. Press the CapsLock key to release it. Press the NumLook key in the upper right corner of the keyboard area to release it. You can use some optimization software to delete all startup items, and then restart the system to restore the computer keyboard to normal.

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