Question about Dell E173FP 17" LCD Monitor

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Xenon LCD monitor will not turn on..

The monitor will not turn on.. I check the power from power supply cord its good. Any suggestion?
Thx
tengo un xenon 1810 e prende la lus del monitor pero la pantalla no

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  • gooface Nov 16, 2008

    Mine the same thing! went to turn it on one day and nothing. No lights nothing. I checked the power cord and took it apart and checked power getting to the inside of the monitor. It does have power. Any suggestions?

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Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Cause of power going off: There is a bad 1000uF, 16V cap on the power supply board.

Solution: Replace cap. Radio Shack sells a 1000uF, 35V cap for $2. This will work.

Why did the cap go bad? The cap is too close to a heat sink and over heated.

What does this cap do? This cap sends a signal to an IC which keeps the monitor 'on' after the power switch is pushed. When the cap is weak, AC ripple voltage is applied to the IC and it sends a signal to shut the monitor off.

Opening the Monitor: These monitors are difficult to open.

The two plastic pieces snap together and must be pried apart with a flat screw driver.

After removing the stand, you need to insert a flat screw driver at the bottom of the screen where two slots are located. Then work the screw driver around until the two plastic pieces are separated.

Remove the cover plate and unscrew the push button circuit board.

Unplug the monitor cords from the driver board and remove the screen.

Unscrew the mounting screws from the power supply board and remove.

You will need to pinch the plastic support in the middle of the board to remove.

Cap Replacement:

Cap is located near a copper heat sink and the value will be on the side of the cap. It will be bulged up on the top. You will see burn marks on the board surrounding the cap. Unsolder the cap.

Install the new cap and solder. Make sure you connect + of the cap to + marked on the board.

Be careful not to solder across joints.

Keep leads long so you can bend the cap as far away from the heat sink as possible.

Reassemble monitor and turn on.

This should solve the problem.

Posted on Jan 01, 2009

Time for a replacement with the amount of data supllied, also see if the light indicator button comes on, if there is power, then check the video plug and card, do another video card and see if that corrects the problem.

Posted on Jun 21, 2008

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Hello,

Would you please give information as regards the problem posted in English? Giving me this information in English will guide me to suggest a solution to the problem.

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When you say that the monitor finally powered on, it's hard to tell if that means it came on and produced a picture. If it powered on and produced a picture, it's likely either a power supply problem (meaning a device inside the monitor called a power supply) or a physical connection problem (meaning the power's not making it from the cord to the monitor itself).

Often times the internal power supply feeds an internal motherboard which then regulates the power which lights the LED. Failure of the LED to come on typically suggests a problem with the internal power supply. And this is usually the result of one or more blown capacitors.

In your case this seems especially likely because capacitors, by definition, store a charge. When you left the monitor unplugged for a while, one or more "failing" capacitors likely discharged and, after being powered up for a while, took on enough of a replenished charge to do their job. Since they were already on the very edge of functionality, however, putting the monitor through this same set of stressors a second time probably killed them for good.

If you can SAFELY get into the monitor for a look at the power supply board, you'll likely identify one or more bulging capacitors (usually cylindrical capacitors that now have a convex head instead of a flat one). If you can SAFELY remove them and properly replace them according to their individual specs on capacitance and voltage, (being mindful also of polarity), you'll probably rescue your monitor.

If however, when your monitor finally powered up for the last time you failed to get a picture, this begins to suggest of failure at the motherboard level. In that case, you'd be best to look toward acquiring a new monitor since you'd spend nearly as much toward repairs on this one.

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If this doesn't work then the fault is in the monitor, most likely the power supply circuit.
I don't know this make and model, but it may have a blown fuse. If you are not an electronic savy person, I would advise you NOT to try to fix this problem, as there dangerous voltages in the monitor.
The cost of a repair maybe too high, I suggest you put your money towards a new LCD monitor.

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Creo que tienen capas superpuestas de la misma imagen en su monitor. Prueba a revisar los cables doblados o dañados. Ver si hay dispositivos electromagnéticos cerca del monitor. Por una vez, intenta huir de la liberación de la energía de la pantalla. Para ello, desconecte el cable de alimentación del monitor y presione el botón de encendido en el monitor durante unos 15 segundos. Usted puede también intentar el control de la imagen en modo seguro de "Windows". si la imagen está muy bien allí, es necesario volver a instalar / actualizar los controladores de vídeo.

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I went to the computer store and I did purchased a generic Laptop power supply that provides 13 Volts @ 2Ah. y display was working fine with it.

You may be able to take the display information (Voltage, amperage, connector size, positive and negative information) and get assistance from a computer store (maybe radio shack, circuit cit... oops, they closed stores, never mind that one. Best buy or any electronic store in your area).

If that doesn't work or you can't get a similar power supply, you can check in e-bay and get one similar like this one:

http://cgi.ebay.com/12V-DC-Power-Supply-4-Amp-12-Volt-Adapter-LCD-CB-4A-HP_W0QQitemZ380155972539QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item58830fcbbb&_trksid=p3286.c0.m14

but you need to be sure about the positive and negative connector.

Good luck.

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