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I have an ASUS MW221u LCD monitor about 4 years old and the "Brightness" adjust window displays and none of the buttons turn it off - it is stuck in the middle of the screen. Turning off and on the monitor doesn't remove it either. Neither can you adjust the brightness up or down as those buttons don't seem to work. They did before but now don't change the levels.

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In most of the cases like yours the problem is at the buttons at the lower of the screen. In case one of these buttons is pushed and locked in, all the buttons are blocked. First of all check that the buttons are mechanical working; push them one by one in order to feel the click of the button. In case of one (or more) are not clicking they have problem and has to be replaced. There is the possibility that the click is active although the button is defective; this is because the inner contact of the button is dirty or damaged. In this case you have to open the monitor's case (usually you have to remove the screws at the back of the monitor and open the cover slowly in order the clips all around the frame to get unlocked), spray with a contact cleaner direct at the buttons and push each one several times to get cleaned. By the way that the cover is open check the cables connecting the buttons board with the rest for possible cut or loose contact. VERY carefully plug the monitor and check the results. In case that the problem is still active one of the buttons is defective and needs replacement using soldering tools.

In case of a problem or clarification, don't hesitate to post me a reply before rejecting my answer.
If you are satisfied, accept my solution.

Thanks and regards
Stelios
direct fixya link: http://www.fixya.com/users/technical114

Posted on Nov 12, 2010

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1 Answer

How to unlock buttons?


Not sure if this is exactly the same as yours your model hard to find I had 2 similar monitors at previous employer and they both operated the same way Taking a Look 1. Power Switch Pressing this button turns the display system power on or off. 2. Menu/Select ? Pressing this button pops up the OSD menus on the screen, and used to select ("Up" direction) the OSD control options on the screen. ? This button is used to select ("Down" direction) the OSD control options on 3. Select the screen. 4. + This button is used to increase the value of the selected OSD control option. 5. 0 This button is used to decrease the value of the selected OSD control option. Quick Adjustment Function When the OSD Menu is not active, the following functions are available for the quick adjustment. Pressing ? button once pops up the OSD Function Main Menu . Pressing ? button once pops up the small Brightness icon. Use +or 0button to adjust the Brightness level. Pressing + button once pops up the small Volume icon. Use +or 0 button to adjust the Volume level.

Apr 17, 2016 | Princeton Digital VL173 Monitor

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No display


Your DVI cabkle or graphics card has failed.

Apr 18, 2014 | ASUS MW221U LCD Monitor

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Unable to reduce brightness windows7 ultimate hp1670


laptop ot desktop monitor ?

Adjust your monitor's brightness and contrast

You can adjust the brightness and contrast of your monitor to improve the readability of text and to make digital pictures appear more like they'll look when printed.


To improve the results when adjusting the brightness and contrast settings for your display, use Display Color Calibration. (Display Color Calibration helps you adjust these color settings and others.)

The way you adjust brightness and contrast varies and depends on your specific display.

Brightness and contrast buttons on the front of the monitor.


Some monitors have brightness and contrast controls on the front and use the standard symbols shown in the following image.

Brightness and contrast symbols

On-screen menu. You can change the brightness and contrast settings for some displays by using an on-screen menu, and then setting the brightness and contrast in the resulting menu. Many times, you can view the on-screen menu by pressing a button-possibly labeled Menu-on the front of the monitor.


Laptop display. Laptop displays don't have brightness or contrast buttons on the front.

For a majority of laptops, there isn't a control for setting the contrast.


However, you can set the brightness of many laptops by pressing and holding the Fn key, and then pressing a function key to decrease brightness ( ) or increase brightness ( ).

http://windows.microsoft.com/en-US/windows7/Calibrate-your-display#

When using Display Color Calibration on a laptop, set the display to the maximum brightness setting.


Adjusting brightness automatically using adaptive brightness

Adaptive brightness is a feature in Windows that uses a light sensor to automatically adjust the display brightness to match the lighting conditions in your computer's surroundings.


To use adaptive brightness, you must have light sensors installed and enabled on your computer.


To determine if your laptop or computer monitor supports adaptive brightness, look for the Enable adaptive brightness setting in Power Options (mentioned in the following procedure) or check the information that came with your computer.


To turn adaptive brightness on or off

Open Power Options by clicking the Start button , clicking Control Panel, clicking System and Security, and then clicking Power Options.


Under any plan, click Change plan settings.

Click Change advanced power settings.

In the list, expand Display, and then expand Enable adaptive brightness.


To turn adaptive brightness on or off when your computer is running on battery power, click On battery, and then, in the list, click On or Off.

To turn adaptive brightness on or off when your computer is plugged into an outlet, click Plugged in, and then, in the list, click On or Off.

Click Apply. Click OK.


hope this helps

Jul 26, 2012 | HP...

1 Answer

When I connect my ASUS monitor to my Dell laptop the ASUS monitor displays nothing instead it says "No Signal"


Hi

You do not say if your laptop screen is working or not or why you want to use an external monitor.

Assuming the laptop has no fault and boots properly, to send the laptop image to an external monitor, once you have booted into Windows, press and hold the Fn (function) key bottom left of your keyboard, near the Windows Logo key, then simultaneouly press the Function key (above the numbers) with the image of 2 monitors, 1 dark, 1 bright (often the F4, F5 or F6 key).

If the laptop's screen is faulty and the above procedure does not work, there may be damage to the graphics card which will probably require specialist repair.

I hope this helps.

Aug 27, 2011 | ASUS MW221U LCD Monitor

1 Answer

I have 3 out of 4 Asus VK222H LCD Monitor Menu/Brightness Appearing w/o Button Press, stays onscreens for varying amount of time, then dissapears for a while to return again. Monitors bought August 2008....


Mine did the same. I don't know what caused it, but removing the menu button solved it. Crude but effective.
I took a knife, pried out the Menu button, then took a pliers and removed the little black plastic button and problem solved.
Now I can't change the settings, but switching between VGA, HDMI, and DVI works just fine. No more annoying brightness pop-ups that don't go away!!!

Apr 05, 2011 | ASUS MW221U LCD Monitor

1 Answer

When I turn on my computer and monitor, the monitor displays "Controls Locked" in a small box once. And whenever I try to adjust brightness or contrast, it keep displaying "controls locked.


Push the MENU button in for 5~10 seconds to turn on/off OSD lock.
Please leave rating if it helps.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Feb 27, 2011 | LG Flatron L1715S 17" LCD Monitor

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The Enable Overdrive menu pops up on the screen when i turn it on and it wont go away. ive checked to see no buttons are stuck in aswell but it will not go away


are you sure it isnt software installed on your pc that is displaying the overdrive menu . Check to see if you have it installed, as as far i can recall there is no overdrive program for monitors. They are used to overclock the cpu of your computer


If this has helped you please give feedback by voting

Feb 23, 2011 | ASUS MW221U LCD Monitor

1 Answer

Lately the 'brightness' window pops up all the time and doesnt go away


hold the 4th button ,while holdin it press the 1st button(counting from left to right)

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2 Answers

The menu is keep on appearing on the screen and its really annoying..How do I fix this?


Use the On-Screen Display buttons on the lower right or lower left corner of your monitor to check what will remove it from appearing.

Jun 06, 2010 | ASUS MW221U LCD Monitor

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