Question about ViewSonic VA721 17" LCD Monitor

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Screen flickers and is wavy looking. when I press the button to adjust contrast the screen there is normal looking. Once I go back to the desktop it is flickering, wavy and static looking

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6ya6ya
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Posted on Jan 02, 2017

  • 383 Answers

SOURCE: Monitor flickering and adjustment buttons locked

If the refresh rate is not properly set the monitor may have a wavy or an appearance that lines are going down ... This may also cause a flickering affect.
Distorted or skewed image on monitor. Issue: Distorted or skewed image on monitor.
Cause: This issue can occur from any of the below possibilities.

  1. Windows issue.
  2. Loose or defective cable.
  3. Refresh rate issue
  4. Interference.
  5. Bad monitor.
Solution: Windows Issue If your monitor has a proper display until it gets into Windows 3.x, Windows 95, Windows 98, Windows NT, Windows 2000, Windows ME, or Windows XP please see document CH000121 for software or setting related issues.
Loose or defective cable You may receive a distorted image when the cable is loose or defective. Disconnect the video cable going from the back of the computer and verify that no pins are bent, burnt or broken. Once verified re-connect the monitor cable.
Refresh rate issue If the refresh rate is not properly set the monitor may have a wavy or an appearance that lines are going down or across the monitor slowly or fast. This may also cause a flickering affect. Additional information about how to change the refresh rate can be found on document CH000558.
Interference A distorted image can be caused by magnetic or other types of interference. Verify no speakers, fans or other magnetic devices are close to the monitor.
Bad Monitor If the above possibilities have been checked it is likely that the monitor is bad. To verify this it is recommended that the monitor be temporarily disconnected and then connected to another computer. This can be a friends computer, a work computer, and/or a computer at a service center. You can also help verify a defective monitor by connecting another monitor to your computer. Note: Connecting your possibly defective monitor to another computer will in no way harm the other computer.

Good Luck/Please dont for get to Rate.Thank You.

Posted on Jan 17, 2008

  • 62 Answers

SOURCE: screen flickers

1. main capacitor 220mf / 420v .

2. drypoints on monitor kit.

3. electrical distabence.

Posted on Nov 26, 2008

  • 1 Answer

SOURCE: Samsung 215TW Monitor Flicker

Its the capacitors on the backlight power supply. Samsung installed crappy ones and they blow up after a year or two. Change out the caps and you're good to go

Posted on Jun 09, 2009

  • 60 Answers

SOURCE: White static flickering on Viewsonic VA1912wb

Please check the line voltage 220V AC and check the earthing voltage 3V AC..

Posted on Jul 10, 2009

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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

1 Answer

I have anew Samsung 55 inch model code ue55h6500akxxu but it will not store my settings as soon as i turn tv off an on again it goes back to custom settings


This is from an article I found online:

"It's likely that the television is in Shop Mode. The symptom would be that your settings are defaulted back to the out-of-box settings?

Try holding down the Menu button on the TV (Not remote) for 12 seconds.

OR

Try pushing the volume button up once, let go, and then hold down the MENU button for about 12 seconds.

You might see the screen flicker, and that's okay. Once you've done that, you should be able to program your settings and they should stay.

--HDTech"

Feb 02, 2015 | Samsung Un55c6400 55 Inch Led Hd Tv - Free...

1 Answer

Brightness set to all the down


There should be a menu button on the monitor. Press this button, it has it's own brightness settings. Press the "factory settings" button; monitor should return to normal brightness.

Sep 19, 2013 | Dell Dimension™ B110 PC Desktop

1 Answer

The screen on my Phaser 6360DN is to light to read, is there a way to adjust thee contrast?


On control panel press DOWN button to highlight "PRINTER SETUP". press OK. Press DOWN button to highlight "CONTROL PANEL SETUP" press OK. Press DOWN button to highlight "CONTROL PANEL CONTRAST" press OK then press UP or DOWN button to adjust. Repeat for "CONTROL PANEL BRIGHTNESS" if required. Press RETURN several times to go back to HOME screen

Apr 20, 2010 | Xerox Phaser 6360 Laser Printer

1 Answer

Screen dim, black has green in it, contrast and brightness = shin


Since you have replaced the Color Wheel, it sounds like you have not adjusted the Index Delay in the service menu. First reset all of the picture settings you have adjusted back to original factory settings. Then on your Samsung TV Remote and with the TV OFF, Press Mute,Power,123. This will turn on the set and put you in the Service menu. Look for the top setting and select or scroll to the OPTION setting and select and look for INDEX DELAY and select that. Once you have the Index Delay selected use the right and left buttons on the remote to adjust for a picture the has no abnormal coloring and while looking at a program adjust for when the blacks look black with no abnormal coloring. Once that is done, turn off the set then turn the set back on. Now the picture should look normal.

Apr 03, 2010 | Samsung Televison & Video

1 Answer

My calculator is lagging. The usual flash [] stays black now. And I need to press buttons for 3 seconds or more before it appears on screen. Also, I cant use 2nd-ON to turn it off. As well as that, my...


Look at the I/O port (the round one on the top left side) and extract any foreign material that may be lodged inside the port. You can use compressed air but not the tip of pencil as the "lead" (in fact graphite) is an electrical conductor.

To reset the calculator the RAM must be cleared

To clear RAM
  1. Press [2nd][+] to access (MEM) memory management
  2. Press [7:Reset][1:All Ram][2:Reset][ENTER]
  3. Press [CLEAR] to erase "Ram Cleared" message.
After you reset the Ram you may have to adjust screen contrast
  1. Press [2nd] key and release it
  2. Press and hold
  • Up Arrow to darken screen, or
  • Down Arrow to lighten it.

Feb 04, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

Calculator occasionally can be turned on, occasionally cannont. Batteries are perfectly fine, because I tried several times in switching them. Everything else with the calculator normal.


Either the ON button is sticky and hard to press or contact is not good (calculator may have been dropped and casing is loose)
OR you have to adjust the contrast of the screen.

To adjust contrast

  1. Press [2nd] key and release it.
  2. Press and HOLD [UPArrow] key to darken screen or [DownArrow] key to lighten.
  3. Release the Arrow keys when contrast is to your liking.

Dec 14, 2009 | Texas Instruments TI-84 Plus Calculator

2 Answers

The screen on my TI-86 calculator is black when I turn it on. What do I do?


Hello,
You can adjust the contrast on the screen of your TI86 by following the procedure below.

Adjusting the Contrast
1 Press and release the yellow [2nd] key.
2 Press and hold UpArrow or DownArrow (above or below the half-shaded circle).
¨ To darken the screen contrast, press and hold UpArrow.
¨ To lighten the screen contrast, press and hold DownArrow.

Hope it helps.

Nov 04, 2009 | Texas Instruments TI-83 Plus Calculator

2 Answers

Blank (dark) screen


Yes,

But, this requires you to access the screen adjustment buttons on the front side panel bezel or on the side of your screen's panel bezel.

I'll be, owning a few flat panels, the first to tell you that dealing with these buttons is tortuous. The are labeled but poorly, Usually the top or first button is the Menu button. When you press this one you will have the menu displayed on screen. If you don't, your screen is dead and needs replacement under warranty or not. Otherwise, the other buttons are up, down, ok and exit. Figuring out which buttons are which of these is nothing but a headache and frustrating.

You need to access the menu, navigate your way around the many menus until you find the Reset or Restore Factory Presets. Or, even just words to that effect. Once you do find it, pressing it should bring your screen up to normal display, you can do this while your PC is off. After getting the Presets Reset, you could find the brightness and contrast adjustments. Normally, you want Brightness at 100% and Contrast at 50%. Gamma adjusts the white level of your display, so don't mess with that until you are in Windows once again and can see your desktop on your display.

If your screen is tinted either Red or Green and even Blue for that matter your plug at the monitor is loose, use a flat blade screwdriver to tighten the plug down, same at your PC connector.

If you can't get to any of these places after trying everything for a first, second and third attempts, your flat panel has problems and needs service/replacement under warranty or not. LET ME KNOW this so I can assist you.

Other wise if its working again, go to this page and choose a download from link and once this program is downloaded, install it and run the program to make final adjustments or examine the test patterns to see if your flat panel is working as expected or not.

Regards,
Worldveet

Aug 03, 2008 | Compaq Presario 700 470024-192 Notebook

1 Answer

We have an Acer Travelmate 4200 and the screen is too dark how do you brighten the screen??


Most laptops have a function key (F1-12) with a picture that looks like a sun. Press and hold the FN button and the appropriate Function key. You should get a "slider" to adjust the contrast and brightness..

Some laptops also come with a program to make other display adjustments. Look at the Control Panel to see if you have one of those on your list. If not, check the "Display" application on the Control Panel, and under "Settings" see if you can adjust contrast or brightness that way.

Jul 21, 2008 | Acer Computers & Internet

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