Question about Dell E172FP 17" LCD Flat Panel Monitor

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Power light comes on but screen will knot light up

Screen will not light up

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Shine a torch onto the screen when it is running. if you can see the images then your backlight has gone and you need to replace.

Posted on Feb 26, 2009

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Monitor comes on but the screen gets dark after a 3 sec


if the power indicator at the front panel stay lit but no screen display or black screen, it could be a sign of bad power inverter board or screen back light. now to ensure if it was the cause you can do a voltage checking, at this time you will need a digital tester. you need to know if their is a bl_on voltage at the power inverter board around 3-4.4v to turn on the inverter board that supply the back light.if the power inverter board has 12v dc and has bL_ON voltage then the cause will be a bad inverter board. you must check also for a dry joint connector going to back light.

Nov 15, 2012 | ViewSonic VG2030wm LCD Monitor

1 Answer

Monitor has power. Will come on very briefly and the go to black screen. Can turn power off and back on and get the same above result.After a 2-3 hour period may come to life...may not.


It appears as if the monitor's back lighting is failing. To test the theory, take a bright flashlight and shine it on the lcd monitor screen when it goes black. If you can see the images that were on the screen before it went dark while shining the flashlight on the screen, then the back lighting is failing. Depending on the monitor, it could have florescent or L.E.D. back lighting, but it's usually more economical to simply replace the monitor with a new better performing monitor, than to attempt repairing the back lighting on the failing monitor.

Dec 01, 2010 | Samsung SM225BW 22 inch LCD Monitor

1 Answer

VL 1919 power button blue light blinks and screen


Yea I fixed it ..bought a new monitor......I tried the old monitor on two other PC's same problem.....

Nov 23, 2009 | Computer Monitors

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The power light does not come on,no screen. No


if there is no lite at all the problem definitely is with either the power cable or the port on monitor.

cable seems more likely tho...try n get a hold of another cable and try. make sure u dnt use a surge. try it directly to a power outlet first. no reset button can help no power situations.

Nov 01, 2009 | Computer Monitors

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Blank screen with intermittent operation


you have bad capacitors in the power board inside the monitor replace these and the monitor will work fine

Dec 09, 2008 | ViewSonic Optiquest Q9b 19" Flat Panel LCD...

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Black screen


how can u fix this black screen? the green power light is on, shows vista for a bit then turns black and stays black. any solutions or do i have to send it back?

Apr 03, 2008 | Microsoft HannsG HU171D 17" LCD Monitor

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