Question about Dell E151FP 15" Flat Panel LCD Monitor

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Blinking L.E.D. light on dell monitor

The l.e.d. is blinking and the monitor is out, after unplugging the power cable to the monitor itselfm it comes back on, another time I had to unplug the cable to the computer itself...what gives

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  • Anonymous Jun 28, 2008

    dell dimension 8400 with 19" lcd monitor, when turning on in the morning, the monitor on button just sets there and flashes green but not come on, I can keep pressing it and it will come on after a while, I completely restored it and nothing.

  • dana114 Jul 17, 2008

    My E151FP monitor also just sits and blinks (the green light). After unhooking the cable for a few hours the monitor comes back on. Is it my monitor or computer.

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Try lowering the screen resolution to 1024x768 and see if it displays on the screen. You will need another monitor (possibly CRT as they do high resolutions) to do this.

Posted on Nov 09, 2007

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1 Answer

Green power light comes on but disk drive lights keep blinking and my screen is black on my dell dimension 4700


Remove ALL media from the machine DVD, CD, USB, etc. Check/reseat all Monitor cables. Reboot. If that fails, unplug , plug back in in 30 seconds or so. reboot, if you get a Dell Logo, Open the boot Menu and select Boot from HDD first.

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First check your monitor light is blinking or not. If it is then--

Check your monitor cable which is connected your CPU. If it is ok then
Open your CPU and unplug *********** board power cable and re-install it.
And also remove RAM and clean with a brush softly and re-install it.

Best of Luck

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My Dell E173FP monitor will not come on. I have unplugged and replugged the cable from monitor to hard drive case as well as the a/c power cord. I have rebooted the computer several times and all I get on...


The dreaded blinking green led without a display, means that the backlight circuit has failed on this monitor. Typicalll the transistors that drive the backlight transformers short out and fail. I have fixed this on my monitors twice. Very common failure for this monitor and can be fixed quite easy if you know how to use a soldering iron and a meter. They even sell a repair kit on ebay that provides parts to repair this monitor. Just go to ebay and search e17fpb repair and to find it. Hope this helps.

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There is a symbol of Two monitors on F3 Or F4 button

1. Press Fn key and hold it
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Your monitor will start displaying

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Dell E173FP Screen blinking red, green, blue, white


The monitor is probably on protection.

To start unplug monitor from power and from computer and test computer with different monitor to find out if it is monitor or computer fault.

If it is computer fault and no video signal , then test:

  • Video cable.
  • Video adapter on PC (sometimes integrated on motherboard)
  • Motherboard.

If it is monitor fault , then the monitor is on protection.

When on protection you keep having a flashing led on front of the monitor , and monitor turning off by itself after a while, 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.

1The 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 occur are a blown capacitor on power board, faulty inverter board, faulty input board, or a fault on LCD Digital Controller board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.

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

If under warranty contact the manufacturer ringing the number on the user manual

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

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2 Answers

Monitor Will not come on


bad capacitors inside the monitor they need to be replaced, or if the power light is blinking then there are transistors that need replacement

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some transistors on the board have shorted they supply power to the inverter to run the lamps, they power is not cut off intermittently and the protection circuit has stopped the monitor. the fix is here

http://josepino.com/other_projects/?howto-repair-dell
goo dluck if you want it fixed for you let me know

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1 Answer

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-Check to see if your VGA cable(the cable from your monitor to your PC) is properly connected.

if not

-unplug your PC
-remove all devices connect to it(make you remember where each component id connected)
-remove the cover
-unscrew the Graphic Card
-clean the contacts with pencil eraser
-reseat the Graphic card(make sure its is properly seated
-screw it in place
-put the cover back
-plug your pc

if this also fails

-you might have a defective graphic card

^_^


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try unplugging the monitor cable from the computer and check if you get a power on self test displayed
if yes then the monitor is fine we have to troubleshoot the computer
and if nothing is displayed the monitor needs to be replaced.

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Dell E173FP 17" Monitor


I just had the same problem as well - mine happened during a windows update, related? Also, for me the monitor doesn't come one even after disconnecting from computer, nothing, just blinking green light.

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