Question about Computer Monitors

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The monitour will go from green light to orange after sitting for about 10 or 15 min. you move the mouse and it does not go from orange to green. you have to restart the computer.

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Lower down the computer resolution and frequency rate from Video setting>>Advanced in control panel (personalize on Vista) replace the video cable.

If that does not help then the monitor is defective.

If there is a flashing led on front of the monitor, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the Monitor goes on protection there are only two possible causes.

1 The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or a broken contact, identified an internal fault and kicked in , starting the flashing light.


If you are in situation one, then the monitor will reset just unplugging power cord for one or two hours, sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occurr suddenly are a blown capacitor on power board, the inverter board powering up backlight lamp has blown, or a fault on main lcd controller board.
check also the video cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.

Check connectors, try moving the video cable, and if the cable is not built in, then also try a replacement cable.

If under warranty contact manufacturer to find out a service point.

If you want to repair at your own expenses, just locate any good qualified repairer.


Regards

Posted on Mar 06, 2009

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My dell monitor cuts off after minutes. the screen goes black and the green light shuts off after exactly 15 mins.


mines simler after 20mins goes of on its own mine got a build in power save mode that i cannot change think it eco settings i tryed display setting on pic moniter still does it videcs stat on and when i move my mouse it comes back mabe a auto stand buy setting

Feb 04, 2011 | Dell E173FP 17" LCD Monitor

1 Answer

Green p0wer light flashing on screen but no display


Monitor is not on

Make sure the monitor is on. If no power light (green or orange light) is seen on the monitor display try pressing the power button until it comes on. If no light comes on after several attempts continue to below connections not connected properly.

Computer is asleep

If your computer monitor was on and you stepped away from the computer and upon returning it was black it's likely that the computer is asleep. Try moving your mouse, clicking the mouse buttons, and/or pressing any key (space bar) on the keyboard to wake it up.

Connections not connected properly

vga.jpgMake sure that you are connecting the monitor to the back of the computer in the 15-pin connector as shown to the right or older computer 9-pin connection.

If the computer is properly plugged in, make sure it's getting getting power.

If you are not receiving power from a known working wall outlet and if the power cord is removable, replace it with the one connected to the computer and attempt to power on the monitor again. If the monitor still does not get power or it is not removable, it is recommended that the monitor be replaced or serviced at a local TV / Computer repair shop.

If the monitor is receiving power, check the status light.

If the light is orange or flashing ensure that the monitor is not in a suspend mode by moving the mouse or pressing a key on the keyboard. If the computer does not get a display by moving the mouse or touching the keyboard, turn off the computer and monitor and reconnect the data cable from the back of the computer, and if removable, the back of the monitor. Turn the computer back on; if you still encounter the same issue, continue reading through the other possibilities.

Monitor settings are not correct

Ensure that the brightness and contrast is turned up or attempt to adjust the brightness and contrast. If adjusting the brightness or contrast has no affect on the monitor continue reading through the other possibilities.

No Post

Does the computer beep when it is powered on and/or does it appear that the computer has activity? If the computer does not beep or beeps abnormally it is possible that the computer itself is experiencing a hardware issue or is exhibiting a No Post.

Steps on troubleshooting an irregular POST or no beeps can be found on document CH000607.

Hardware Issue

If you have followed the above recommendations and are still encountering the same issue, it is likely that the computer may have either a bad video card or monitor. The best method of determining this is to do one or both of the following:

  • Disconnect your monitor and attempt to connect it to another computer. This can be a friend or family's computer and/or it can be taken to a service center.
  • Borrow a computer monitor and connect it to your computer. This will not harm the other computer monitor in any way.

If your monitor works on another computer it is safe to assume that the video card or potentially the motherboard within the computer is bad. Steps in troubleshooting a video card can be found on document CH001028.

If another monitor works on your computer it is safe to assume that your

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