Why doesn t the third light on the keyboard come on? How to make it light up

Press the top key of 7, the left key of A and the top of the top button.

The first num lock keypad switches on and off the light; The second caps lock case switch light; The third scroll lock key.

On the keyboard, look for the scroll lock key, which is usually on top of the home button.

In general, the order of the indicators on the keyboard from left to right is numlock, capslock, and scrolllock.

The scrolllock indicator, also known as the scrollbar lock indicator, works with the scrolllock key (scrollbar lock key) on the keyboard, and the scrolllock key can be controlled to turn the scrolllock indicator on and off, similar to the control of the other two lock indicators.

Many people are unfamiliar with the scrolllock indicator and the scrolllock key because the "scrollbar lock" feature is rarely used. At present, most software does not support the scrollbar lock function, and only Excel supports this function in common software. In Excel, if the scrolllock indicator is off, press the up, down, left, and right cursor keys on the keyboard to move the currently selected cell; If the scrolllock indicator light is on, pressing the up, down, left, and right cursor keys of the keyboard will move the scrollbar directly instead of the cell.

The third light of the keyboard is scroll lock, click the key of the keyboard to turn it off, to Logitech.

For example, the steps are as follows:

1. You can see that the default scroll lock is turned on.

2. Find the key of scroll lock on the keyboard.

3. With one click, you can turn it off.

That is the scroll lock key, which can be turned off by clicking this key on the keyboardThe specific steps are as follows:

1. You can see that the light of this key on the keyboard is off.

2. Click Scroll Lock, and you can see that the third light is on.

3. Click Scroll Lock again to turn it off.

4. Scroll Lock (scroll lock key) The function key on the computer keyboard, after pressing this key, when pressing the up and down keys to scroll in excel, etc., the cursor will be locked and the page will be scrolled; If you let go of this key, pressing the up and down keys will scroll the cursor and lock the page.

The third indicator on the keyboard is the scrolllock indicator, which can be turned off by pressing the scrolllock key.

Scrolllock is directly translated into Chinese: scroll lock, known as "scroll lock key" in computer keyboard. In the earliest days of the DOS system, because the screen is displayed as a character, each screen can display 25 lines, each line has 80 characters, the role of the scrolllock key is to roll when reading a longer document, so it was very useful at the time, with the advent of the Windows video phone operating system, we no longer need the scroll key to browse the web, so the mouse can be used to control the scrollbar, so the key change in the Windows system era, has been gradually forgotten.

The third light of the keyboard is on, and it can be turned off by simply pressing the scrolllock key.

Here's how:

1. Scrolllock can allow the keyboard to control the mouse cursor instead of the scroll wheel, which is the previous computer in order to ensure that the computer can be used without a mouse, so the scrolllock is set up to allow the computer to use the keyboard to control the mouse, and find Zheng to scrolllock on the keyboard. (as shown in the image below).

2. Press the scrolllock key to cancel the display of the third light on the keyboard, and the third light on the keyboard will not actually affect the normal use of the computer. (The Ode to Brother is shown in the picture below).

What is the scrolllock key:

The scrolllock key is also called the scrolllock key. The Scrolllock key first appeared on the 83 keyboard of IBM's PC XT model and the 84 keyboard of the AT interface. Nowadays, the scrolllock key is not only found on the 101 keyboard of the PC that we often use, but also on the "enhanced" keyboard of the Mac.

Take Dell G5,Win10 system as an example,Each function of the keyboard indicator is different,The indicator light is on means that the relevant functions are on,The three indicators on the keyboard are numlock、Capslock、The control keys of the three functions of scrolllock,Numlock is mainly responsible for the opening of the numeric keys of the keypad,Capslock is an English case conversion switch,Scrolllock refers to the cursor control key,All light up means that the function can be used, If you don't need to use it, you need to click the corresponding button to turn it off.

capslock is an English case conversion switch,When you press this button, the indicator light will light up,And at this time, the input English will appear in the form of uppercase,The light will go off after pressing again,And all typed English will also return to lowercase,Because you often need to convert case when typing,This is also one of the three shortcut keys commonly used。

The function of numlock is more of a key needed to enter some passwords, and the number keys in the keypad area can smoothly output the corresponding numbers when pressing and lighting up the indicator light. It is mainly responsible for the opening of the number keys of the keyboard of the little blind friend.

Scrolllock uses this key when grinding envy**. When doing excel**, use the arrow keys to scroll, the cursor will move with the page, and when you press the scrolllock key to move again, the page scrolls as usual, and the cursor stays in place.

This answer applies to most models of Dell computers.