Keyboard and Mouse failure

1. The indicator light corresponding to pressing NumLock and CapsLock keys on the keyboard is not on, and the keyboard cannot be used.

Troubleshooting method:

(1) Check whether the keyboard is connected to the computer and whether the connection is loose. PS/2 the keyboard of the (round) interface needs to be restarted before it can be used after connecting to the computer.

(2) Check whether the keyboard has USB extension line, try the keyboard without passing USB the extension cord is directly connected to the computer.

(3) try to connect the keyboard directly to the computer and change different ones USB mouth, if it can't be moved, the keyboard will be broken, replace it with a new keyboard.

2. The cursor is jumping, the keyboard cannot be clicked, and the mouse cannot be clicked.

Troubleshooting method:

(1) Check Tab the key is stuck or not.

3. The mouse cannot be used. The red light under the mouse is not on.

Troubleshooting method:

(1) Check whether the mouse is connected to the computer and whether the connection is loose. PS/2(Round) after connecting to the computer, you need to restart the computer before you can use it..

(2) Nic parameters and camera bandwidth must be configured correctly (configured at the factory).

4. The red indicator light under the mouse is on, but the mouse cannot be moved.

Troubleshooting method:

(1) Check whether the mouse is connected to the computer and whether the connection is loose. PS/2 after connecting to the computer, you need to restart the computer to use it.

(2) try to connect the computer directly with the mouse and change different ones USB mouth, if you can't move, the mouse is broken, replace it with a new mouse.