Monitor isnt showing any power

My monitor wont power up or turn on ,the power pack is working,i get a single flash on the led when i plpug it in thats it. then nothing,no yellow or gre3en led,it just dont turn on,i replaced a compacitor in it,before i did there was nothing at all not even a led flash

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William Miller

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9,179 Answers

I would suspect it needs to have electronic troubleshooting done in the power supply section to find and replace the defective components. Is it possible the capacitor is in backwards?

Posted on Jan 07, 2007

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Monitor wont turn on help

Hello there, first thing you should do is to check the power cable.You can do that by changing it with PC power supply cable .It is the same. If it turns to be OK then disconnect the VGA cable from monitor and then try to power monitor on.There should be an activity on front power LED. If the power LED is not showing any light at all, then do not go further the unit is not working .Else the power led should blink a couple of times then a window pop up scrolling on the lcd saying :" no video signal" so the unit is OK ..Hope this helps. Cheers.

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First of all, the best way to check is to plug your laptop into another external monitor, you should be able to do this with the VGA connector on the left side of your laptop. You can do this with any monitor that's used with a PC. See if the monitor turns on when the laptop starts.

If you don't have an external monitor to try, the numlock, caps lock and scroll lock keys on your keyboard should show that they're active by the LED that shows they're on or not. Turn it on and let it boot up (give it a few seconds or minutes to be sure), then press numlock or caps lock or scroll lock and see if the LEDs for those keys turn on or not.

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http://s807.photobucket.com/albums/yy352/budm/Dell%20E15x%2017x%20series%20PWR%20INVERTER%20BD/

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BIOS dead. screen 100% dead, and not even text
BIOS works even with HDD and DVD drive pulled.
that is the acid test on PCs.
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this old LT uses CCFL back lamps.
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Aug 29, 2017 • HP Pavilion dv6928us Notebook

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It sometimes takes too long to turn on, and lately it wont turn on t al. the led flashes green for 10 minutes untill it shows image and it started not turning on or showing any image

your power supply may need repair. open the back of it. look for capacitors that are leakingo or crowned. or you can take it to have a shop reepair it.

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Sir Help me with my Compaq monitor MV520 it won't turn the power led flashing orange to green continously

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