Question about Computers & Internet

1 Answer

Brightness buttons (f2 and f3 are not working

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 5,660 Answers

Not a lot to go on here, Prabhdeep

Need the full model information

Example,
Acer Aspire 5535-5050

Post back in a Comment, or Reply; at end of this solution

Primer:

An LCD screen does not produce light,

http://solutions.3m.com/wps/portal/3M/en_US/NA_Optical/Systems/BehindTheScenes/Optics101/

Click on the monitor icon

Because of this the LCD screen needs an additional light source.
A Backlight is the additional light source.

A Backlight can be a CCFL, (Or more than one), or a series of LED's.
(Light Emitting Diode)

CCFL = Cold Cathode Fluorescent Lamp (Bulb)
Similar to Fluorescent lighting used in homes, and businesses; but on a MUCH smaller scale.
Average thickness is 2mm, or a little more than 1/16th of an Inch.
Or about the width of this capital letter -> O <-
Average length is almost as long, as the LCD screen is in height.

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/

View the last 8 photos

(Do they break easily when trying to remove, and replace?
OH, YES!)

A screen Inverter is used to convert the power from the laptop, for the LCD screen, and Backlight.
If the laptop uses LED backlighting, it MAY or MAY NOT use a screen Inverter.
Generalized thinking (Can also be stated as 'Rule of Thumb'), is that if the laptop uses LED backlighting, it does NOT use a screen Inverter.

I also feel into this line of thinking, since none of the LED back-lit laptops seemed to use a screen Inverter; that came to the shop.
I have found this to be a fallacy from on here,......FixYa.....
I have looked up two laptops using LED backlighting, and discovered they also used a screen Inverter.

Now I post LED backlighting may, or may not use a screen Inverter.
Seems when LED backlighting first came out, a screen Inverter was used on some models.
Also seems as the LED backlighting technology progressed, no screen Inverter is used.

90 PERCENT of the time, the fault for bad Backlighting can be attributed to a bad screen Inverter.
Of course, this IS IF the laptop uses a screen Inverter.

For a laptop with LED backlighting that does not use a screen Inverter, and backlighting is bad (Dim, or non-existant), the next hardware part in the diagnoses to replace, is the LCD screen.

I now await the information I asked for above.
Then we can diagnose together.

Regards,
joecoolvette

Posted on May 10, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

sandrew
  • 2961 Answers

SOURCE: Laptop brightness

sometimes the power options on a notebook determines the brightness, but if you look to your keypad, there is normally keys that adjust the brightness along with the Fn(function button) But if you have damaged when dropping it, one of the backlights may have been broken within the screen.

Posted on May 18, 2007

Theknack
  • 144 Answers

SOURCE: ibm thinkpad 600x brightness control

There is no otherway. becase the slides sends direct signal to inverter for adjusting brightness. You can adjust brightness the
other way ,through graphic cards property, but that is only adjustment for the color and if you do make it bright, you'll be loosing the vivid color..not so natural.
takecare.

Posted on Apr 19, 2008

  • 218 Answers

SOURCE: cant turn the brightness down on my asus netbook

You should be able to use the "FN" key and "F5" key, press and hold the "Fn" key then while holding that key, press the "F5" key to decrease the brightness. Use the same(Fn) key and "F6" to increase the brightness.

Posted on Jan 02, 2010

  • 1 Answer

SOURCE: Increase brightness

I just figured out that you had to press the Fn key and the RIGHT ARROW key to increase the brightness and the LEFT ARROW key to decrease it ( and not the Up and Down arrow keys)

Posted on Mar 04, 2010

  • 207 Answers

SOURCE: contrast is way too bright,

Right click on your main screen. Go to properties, or graphic properties, then you will find there is a contrast adjustment within. Usually under color correction.

Posted on Mar 24, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

MY SCREEN WENT DIM ANDI FOGET HOW TO BRIGHTEN IT


Laptop. Make sure it is plugged into the mains as the battery saver may have activated. On my HP Laptop, pressing the F3 function key brightens, F2 makes dimmer.

On computer monitors, you need the menu button which will be somewhere at the front of the monitor either on the face or just underneath out of site. Press menu to bring up the options, use another button to scroll to brightness, press another button to select, one of the button you just used to make brighter and then menu to save out.

Mar 29, 2017 | Computers & Internet

Tip

How to use F1, F2 ?..Function buttons on Hp laptop.


For those who do not know how to use the F1, F2, F3..... buttons on HP laptops, here is an opportunity for you to know.

We see these buttons on most laptops but don't know what they are used for. F1, F2....... buttons are the first set of buttons on the keyboard. These buttons makes it easy for anyone to access some programs on the computer without using mouse.

Follow the below procedures on how to use some of these functions:

To put your HP laptop on sleep mode, Press and hold Fn button on your keyboard, (without leaving it) then press F5 (Fn + F4).

To lock your HP laptop, Press and hold, Fn button, then press F6 (Fn + F6).

To reduce the brightness of your HP laptop, press and hold Fn button, then press F7 (Fn + F7).

To increase the brightness of your HP laptop, Press and hold Fn button, then press F8 (Fn + F8).

To put your laptop on mute, Press and hold Fn button, then press F9 (Fn + F8).

To reduce the volume of your HP laptop, Press and hold Fn button, then press F11 (Fn + F11).

To increase the volume of your HP laptop, Press and hold Fn button, then press F12 (Fn + F12).

To shut down your laptop or to view other shut down options, Press and hold Alt button, then press F4 (Alt + F4). Note that this particular function can be used on all computers and laptops.

To close any page on your HP laptop, Press and hold Alt button, then press F4 (Alt + F4). Note that this particular function can be used on all computers and laptops.

Good luck.

on Nov 06, 2010 | Computers & Internet

1 Answer

How to adjust the brightness on theMonitor


Press FN key (second key at bottom from left corner of KBoard) and hold it down and press F3 (fourth key button from top left of keyboard) to increase brightness and F2 to decress brightness. Should see a picture of a sun with an up or down arrow on the function key.

Apr 26, 2015 | Toshiba Satellite M115-S3094 Notebook

2 Answers

How do you increase the display brightness?


Most of the time your keyboard will have pictures on the keys that have f1 f2 f3 etc. Find the one with the pic that looks like a bright sun. Press and hold the fn key and tap the key with the sun on it. Keep tapping till you get the desired brightness.

Mar 29, 2015 | Computers & Internet

1 Answer

Where is the brightness button on a mpc laptop


Try FN button + F3. It's an icon that looks like (kind of) the sun.

Oct 25, 2012 | MPC Computers Computers & Internet

1 Answer

My function keys of hp probook 4420s is not working


You have to Press and Hold the FN function key at the lower left portion of your keyboard then hit the volume or brightness keys. Notice that the volume and brightness keys are the same color as the FN function key. That means you have to press and hold the FN key while you hit the volume or brightness key.

May 27, 2012 | HEWLETT-PACKARD HP ProBook 4420s Notebook...

1 Answer

Loaded windows 7 ultimate and also the drivers on Hp Laptop G62. But the Brightness control buttons on Lap top are not working.Currently brightness seems to be 100%. pls suggest how to control or reduce...


try this

press f3 to increase the brightness, f2 to decrease

or,

hold fn key and press f3 to increase the brightness
fn+f2 to decrease

let me know if it works

Apr 19, 2011 | HP Computers & Internet

1 Answer

How can I change the colour of the keys? I got the keyboard without anything , no box , no driver. Advent AKBGWDB09.I plugged it in and it is working but the keys are red, therefore not bright...


right hold down the silver button with the sun symbol in a square on top of the keyboard and press f2 for red f3 for green and f4 for blue each can be press 8 times to ever adjust colour and brightness & f11 runs through all colours

Jan 04, 2011 | Computers & Internet

1 Answer

HIGH CONTRAST OR BRIGHTNESS ON LAP TOP


there should be brightness adjustments if you hold down the Fn button and look at your function keys F1,F2,F3,etc. There should be "cones" with plus and minus signs to adjust brightness

Dec 30, 2008 | Computers & Internet

Not finding what you are looking for?
Computers & Internet Logo

Related Topics:

81 people viewed this question

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

kakima

Level 3 Expert

102366 Answers

David Payne
David Payne

Level 3 Expert

14161 Answers

Are you a Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...