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Troubleshooting Flat Panel Monitor issues.

Troubleshooting Flat Panel Monitor issues.

Screen is blank and power indicator is off

The monitor is possibly not receiving power. Perform the following steps to fix the problem:

  1. Ensure that the electrical outlet and the monitor are both switched on.
  2. Check that the power cord is firmly plugged into the electrical outlet and the power supply unit.
  3. If the power cord has a removable fuse, replace it.
  4. Try another power cord.
  5. Try another electrical outlet.
  6. Check the power connection at the back of the panel.
Screen is blank and power indicator is steady green

Brightness and Contrast may be too low. Adjust the brightness and contrast using the On-screen display controls (OSD) by selecting the button
Screen is blank and power indicator is steady amber

The monitor is in the Power Management Standby state. The power management feature is invoked when the computer recognizes that you have not used your mouse or keyboard for a user-definable period. Perform the following steps to bring monitor out of the power management state:
  1. Press any key on the keyboard or move the mouse to restore operation.
  2. Check the Power Management software on your computer.
  3. Press the (OK) key to switch between analog and digital mode. If the panel is the wrong mode for the signal being provided, the monitor appears to go into sleep mode.
Screen is blank and power indicator is flashing green
Display mode of the computer is outside the range of the monitor. The display mode the monitor uses is controlled by your computer. Therefore, you should refer to your computer's documentation for details on how to change display modes.

The image size, position and shape may change when the display mode changes. This is normal and the image can be readjusted using the IMAGE SETUP and the monitor controls.

Note: Unlike CRT monitors, which requires a high refresh rate to minimize flicker, TFT technology is inherently flicker-free. If possible, configure your computer for 1600 x 1200 addressability at 60Hz vertical refresh rate.

Use the following table as a guideline and reconfigure your computer to use a supported display mode. The highest resolution (for example, 1600 x 1200) produces the optimal output, but limitations of your monitor may prohibit this setting. Adjust the addressability mode until an image appears.

CHECK SIGNAL CABLE" message is shown and power indicator is steady amber.

The monitor is not receiving a video signal. Perform the following steps to fix the problem:
  1. Check that the signal cable is firmly connected to your computer
  2. Check that no pins are bent in the signal cable connector.
There are noises in the video signal. The IMAGE SETUP function is used to adjust the level of noise in the video signal which causes horizontal lines or areas where the image appears to be unstable and jitters or shimmers. This can be done automatically or manually.
Note: It is not applicable to digital input.
Use the image setup fix the problem:
  1. Select (Image Setup) menu in the OSD.

  2. Select Manual to adjust CLOCK/PHASE settings.
Image appears to be discolored

The color setting may be incorrect. Perform the following steps to adjust the color settings:
  1. Select (Image Properties) from the OSD menu.
  2. Select (Color Properties) to adjust the color mode you find most comfortable or fine tune the colors using the Custom menu.
A few dots are missing, discolored, or inappropriately lighted

A small number missing, discolored, or lighted dots may be present on the screen, which is an intrinsic characteristic of the TFT LCD technology and is not an LCD defect.
Using On-Screen display (OSD) controls
The settings adjustable with the user controls are viewed through the OSD. Press the (OK) button to display the main OSD menu.
OSD main menu:

Note: The LCD monitor needs time to become thermally stable the first time you turn it on each day. Thus, to achieve more accurate adjustments for parameters, allow the LCD monitor to warm up (be on) for 15 minutes before making any screen adjustments

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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...

1 Answer

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 | Computers & Internet

2 Answers

power the monitor and blank in fewsecnd


This could indicate your video card has gone bad.

May 23, 2009 | Microtech JTX V5 15" Flat Panel LCD...

1 Answer

Monitor temporarily on


Hi, It looks like it may be receiving power from the computer but not a signal. Try a different monitor cable from the PC and even a different monitor. If doesn?t work, it could be the graphics card in the PC. Daniel

Feb 16, 2006 | 3G Technology GM-171B 17" Flat Panel LCD...

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