Question about Dell E173FP 17" LCD Flat Panel Monitor

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Screen goes blank

While using the computer my monitor randomly goes black, need to turn it off and back on (sometimes more than once) to get picture to re-appear. Power light is still green when the screen goes black. Tried replacing video card and tried monitor on another computer, no sign of the problem on other computer and problem still persists with new video card. Any insight to this issue would be greatly appreciated! LG L1710S Silver Monitor keeps going black on an irregular basis. Light stays green. Need to switch the monitor off then on to regain picture.

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  • Anonymous Feb 12, 2008

    Same as mentioned above - tried same monitor on known working video out, and still didn't work - also tried switching power cables and monitor cables. When turned on the picture comes on for one second then goes black. WTF?

  • Anonymous Feb 18, 2008

    Monitor goes to blank after turning on. Cimes back on after turning off and hitting degause button and or monitor off. Does take some time but works intermittently.

  • Neil DAndria
    Neil DAndria Feb 21, 2008

    I have had the Hanns-G monitor for a few years and have never had a problem. Now, once I turn off the machine or it goes into hibernation mode, upon turning it back on the monitor stays on only for a few seconds. After turning on, off, on, off many times it stays on until the next shut down or hibernation. The monitor was checked on another computer and the same problem arises. The problem is within the monitor. What is the answer to fix the monitor problem

  • Anonymous Feb 22, 2008

    have a CT-934D CMV monitor and on start up goes blank and sometimes wont turn off any clues

  • dab1 Feb 22, 2008

    Screen goes off after 1 second, have switched power, vga cables and connected to different computer, still same. Screen comes back on for 1 secon if re-connect VGA cable - so is not a power issue. Front buttons work during one second visble interlude of front button re-power or vga re-connect6

  • Optimaman Feb 26, 2008

    The 17" LG L1710S monitor was part of an Optima package which I have had for four years. The last six months it (the monitor) has been blacking out on a regular basis. Mainly after the computer has been operating for an hour or two. However, it blacks out on increasing intervals from then on. I need to switch it off and on again to regain a picture. It has become quite frustrating.

    Can any one explain the actions of this recalictrant monitor?



    Optimaman.

  • aimdayco Mar 07, 2008

    Hi there, just want to add that my Samsung SM 244T does the same thing. After about an hour or two it decides to black-out. I tried to waylay it by setting a screensaver about 55 minutes but if I leave the screen on for a few hours and stop the screensaver all is OK.

    I paid £710 for this baby and apart from having to reboot when it goes black, everything is fine. It's used for Photoshop only.

  • Julette Wright
    Julette Wright May 22, 2008

    I have a Compaq TFT2025 (Carbon, Silver) 20.1 inch LCD Monitor and it restarts a few times each day. What can i do to correct this issue? Thanks much!

  • Anonymous Jun 28, 2008

    I got a Windows Vista Home Premium with ATI Radeon Graphics Card, AMD Turion 64 Dual Core and every once and while my screen will go black.  A while ago i updated my BIOS and my drivers and it solved the problem for a while but then just today after about 2-3 months with no problem, I got it.  When I hard boot It opens up just regularly.

  • naveen_kumma Aug 07, 2008

    I do have the same, computer boots up goes fine for 20-30 min after that screen goes blank no sound and display I tried to resolving by cleaning all including RAM but no use.

  • whistler1226 Aug 26, 2008

    screen goes black and won't come back on

  • Anonymous Aug 27, 2008

    After 3+ years of working perfectly, this same Dell E173FP 17" flat panel monitor has gone black while the light stays green. Nothing has worked yet, so I'll be anxious


  • rixpix465 Sep 05, 2008

    I have the same problem! The monitor suddenly goes blank, sometimes after just minutes of use and other times after hours of use. I have to unplug it and then plug it in again after about 30 seconds or so, before it works.
    What can I do to fix this?

  • Anonymous Oct 04, 2008

    tried another monitor and still had the same issue

  • jrufino978 Feb 16, 2009

    To Atwaterkent
    What is the PN# or MODEL# of this capacitor. I can't find it at Radio Shack. Can you help?

    Thanks

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7 Answers

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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

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I've had these problems also with a couple of dell monitors I've owned. Although it affects most CRT displays. To my understanding, this relates to the alignment of the 'electron gun' that projects the screen information. Sometimes, if you apply a short term vibration to it, the 'gun' will realign itself, if only for a short time until it becomes unaligned again. I have developed a simple method. I dub this technique: "The Fonzie Method." What you do is, smack the *$#! out of it a couple times from a downward direction and hope it comes back on. After that just give it to someone who can open it up and fix it. Never ever try that yourself because the capacitors within a CRT can store enough energy to shock you, potentially fatally. Always keep in mind, nothing lasts forever. Consider, it might be time to give it a decent burial.

Posted on Feb 24, 2008

  • john koay Aug 11, 2013

    Your suggestion is not helpful at all. Every one knows how to sent to some one to repair. If that is the case, why bother to to join the forum and ask for advice.

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Atwater Kent called it! I also found that one of the regulator chips was leaky (just a simple TO-220 cased 5 volt regulator that I keep tons of on the bench; radio shack has these, too!

It took longer to open the case and heat up the iron that it took to fix the darn thing.

Posted on Jan 18, 2009

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My dell flat screen goes black one second after i turn it on. The green lights blinks as well

Posted on Nov 12, 2008

Get a mac?

Posted on Mar 05, 2008

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Item: 17" LG L1710S LCD/TFT Monitor (note: SVGA output not DVI)
Check for compatability with Video card

Posted on Feb 02, 2008

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I did everything I could to get rid of this problem such as removing the VGA card, network card, cleaning the dust and it didn't work. But one thing that I am not sure it will work for anyone is that I realized that I hadn't cleaned the RAM. I pulled it out and cleaned it, then re-inserted it and the computer went back to normal.

It is a RAM problem, I am 79% sure of that.

Posted on Jun 01, 2008

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