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How does a flat screen monitor work - PC Desktops

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It uses a Liquid Crystal Display system (LCD)

Posted on Oct 17, 2008

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The screen reads no signal


eMachines flat-screen monitors offer high quality at low cost.
eMachines flat-screen monitors are compatible with most brands of PCs.
Issues with eMachines flat-screen monitors can arise from faulty power sources, cable problems and incompatible settings.
These issues can be resolved by testing step-by-step each possible cause.

Plug the computer's power cable firmly into a working AC outlet.
Press the computer's power button.
Check the LEDs on the front of the computer case to confirm that the computer receives power.
Plug the eMachines monitor's power cable into a working AC outlet.
Press the monitor's power button.
Check the LEDs on the front bezel or power button of the eMachines monitor to confirm that the monitor receives power.
Orange or blinking LEDs indicate low power or no signal.
Green LEDs denote a working connection..

Perform a monitor self-test.
Switch off the monitor.
Unplug the video cable from the monitor.
Press the eMachines monitor's power button.
An eMachines logo, Windows logo or "no signal" message indicates that the monitor is working properly.

Plug the eMachines monitor's video cable into the video port on the computer.
Attach the monitor's included DVI-to-VGA adapter to the monitor's VGA cable if your computer has a DVI port (15 or 25 pin-slots with 1 side slot) in place of a VGA port (15 pin-slots, no side slot).

Press the eMachines monitor's input button to change the monitor's setting to match the computer port used.
Set your monitor to DVI if connected to your computer's DVI port.
Set your monitor to VGA if connected to your computer's VGA port.

Connect the eMachines monitor to a known working computer with a known working video cable if the problem persists. Contact Gateway, eMachines manufacturer, if the monitor issue is not resolved.

Jul 15, 2013 | Acer eMachines Black EL1850G-42w Desktop...

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No Video


If its a flat screen monitor ?

eMachines flat-screen monitors offer high quality at low cost. eMachines flat-screen monitors are compatible with most brands of PCs. Issues with eMachines flat-screen monitors can arise from faulty power sources, cable problems and incompatible settings. These issues can be resolved by testing step-by-step each possible cause.

Plug the computer's power cable firmly into a working AC outlet. Press the computer's power button.

Check the LEDs on the front of the computer case to confirm that the computer receives power. Plug the eMachines monitor's power cable into a working AC outlet. Press the monitor's power button. Check the LEDs on the front bezel or power button of the eMachines monitor to confirm that the monitor receives power. Orange or blinking LEDs indicate low power or no signal. Green LEDs denote a working connection.. Perform a monitor self-test. Switch off the monitor. Unplug the video cable from the monitor. Press the eMachines monitor's power button. An eMachines logo, Windows logo or "no signal" message indicates that the monitor is working properly. Plug the eMachines monitor's video cable into the video port on the computer. Attach the monitor's included DVI-to-VGA adapter to the monitor's VGA cable if your computer has a DVI port (15 or 25 pin-slots with 1 side slot) in place of a VGA port (15 pin-slots, no side slot). Press the eMachines monitor's input button to change the monitor's setting to match the computer port used. Set your monitor to DVI if connected to your computer's DVI port. Set your monitor to VGA if connected to your computer's VGA port. Connect the eMachines monitor to a known working computer with a known working video cable if the problem persists. Contact Gateway, eMachines manufacturer, if the monitor issue is not resolved. Hope this helps.

Jan 03, 2013 | PC Desktops

1 Answer

Will my hp pavilion a 420n support a 19" flat screen monitor


Hello,

I have to assume you are currently using the larger size called a tube type monitor and would like to have an LCD or flat screen type monitor connected to your computer.

To connect to new LCD flat screen monitor to your computer would be exactly the same connection as what you are currently using.

The only problem you could run into is the connector itself. Some of the flat screen LCD monitors do not have the older style connector called VGA, usually blue called DB15, because it has 15 pin connector. They may have only have the newer style called a DVI type. Some do have both types.

Please be sure the LCD you want has the older style DB15 connector to connect to the rear blue VGA input of your compter.

Good Luck

Aug 30, 2011 | HP Pavilion a420n PC Desktop

1 Answer

My dell S1709W flat panel monitor turned white


http://support.dell.com/support/edocs/monitors/S1709W/en/ug/operate.htm#Using the Front Panel
NOTE: You can also lock or unlock the OSD by pushing and holding themenu-logo2.gifbutton for 15 seconds. (Top of the buttons on right side)

Apr 07, 2010 | Dell PC Desktops

1 Answer

Flat screen monitor functioning strangely


Sounds like there maybe bad caps on the power board in the LCD. Try a different monitor on your computer and if the known working monitor comes on with the computer and behaves properly then you know its a problem with your original monitor. If the known working monitor acts strange as well then you know its a problem with the video card. Let me know what happens.

Jun 11, 2009 | E-Machines eMachines Desktop PC

2 Answers

Dell monitor not working


just try running the Test on the monitor(monitor self test) ie disconnecting the video cable of the monitor & leaving the power cable connected & then see if u r getting the red,blue,green multicoloured bard moving on the screen or not,if yes then the monitor is fine otherwise the monitor is bad.

Apr 02, 2009 | Dell Dimension 8400 PC Desktop

1 Answer

Dell flat screen goes white and colored block appears and floats


Check that your monitor is connected properly and tightly to the computer. If it is, then the monitor may be bad. Borrow a friend's monitor and try to see if it works, if someone else's monitor works, then replace your monitor.

Mar 11, 2009 | Dell gx 150 p3...

1 Answer

I BOUGHT A VIEWSONIC FLAT SCREEN ALMOST ONE YR AGO.i WAS ON COMPUTER,LEFT IT FOR A FEW MINUTES TO COME BACK TO A SOLID WHITE SCREEN! WILL NOT SHOW ANYTHING.tRIED IT ON ANOTHER COMP AND WORKED FINE? hOW CAN...


try to borrow a monitor and have it installed on your PC, then set the display settings to 1024 x 768 pixels then apply it, remove the monitor and put back your viewsonic flat screen.

have a nice day!!
allen

Jun 26, 2008 | PC Desktops

2 Answers

Tha display screen is dark, shows very faintly.


Can you be more specific ?
The first step is to isolate the system at fault:
1) Monitor hardware ?
Test it on another PC or
Try a different monitor on the same PC
Check monitor adjustments.
Check the video cable, try another one.

2) What kind of a monitor is it?
CRT (like and old TV) or an LCD flat screen

3) Video card problem, possible but not as likely

4) Video driver or operating software settings issue
wrong video mode, video settings the monitor can't handle,
incorrect device driver

lots of possibilities here.
MJS

Apr 18, 2008 | PC Desktops

1 Answer

HP Flat Panel Monitor is dead!


The power supply within the monitor has probably expired. HP doesn't do spare parts for their TFT monitors as they are Full Unit Replacement items (if in warranty).

Jan 25, 2008 | PC Desktops

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