Question about Dell E173FP 17" LCD Monitor

1 Answer

LED's blinking, no video

I have had this monitor for awhile with no problems. Recently, I moved my PC and monitor. When I reconnected the video cable and power cord, the three led's (Source 1, 2 and Power LED's) began blinking. The power LED blinks an orange color, and nothing displays on the monitor. Also, pressing the power button does not shut down the monitor.

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1 Answer

Your C5707 transistors in the monitor have failed. Suggest replacing all four with the Sanyo C5707 transistor. A common problem.

Posted on Dec 10, 2007

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Posted on Jan 02, 2017

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SOURCE: All three LED's blinking, no video

hi, does the three lights blink only after u connect it to a display card??if yes then check if any of the connecter pins are damaged, or check out the display card..bye let me know

Posted on Dec 15, 2007

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1 Answer

Monitor says "No Signal" when trying to wake it up


I had that problem awhile ago, but the issue was a loose connection.

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The solution could be as simple as dust inside the unit interfering with the signal, and needs to be blown out, or try removing the power cord and hold-in the 'on button' for about 30 seconds to a minute; then reconnect the power cord and turn it back on.

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The LED blinking light usually means that the attached PC is not powered on or the VGA connector (end of cable connected from the monitor to the PC) on the monitor, the cable or the VGA port on the PC is faulty.

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Need a power cord


Most monitors take the same power cord as a desktop power supply or printer. They are available at most stores with computer gear. The monitor spot where you plug in the cord will be a irregular hexagon forming a regular rectangle on one half and three sides on the other. The monitor will have three prongs. The wall outlet plug is a standard grounded plug.

For a picture of the cable ends: http://www.superwarehouse.com/Cables_to_Go_6_FT_Universal_Power_Cord/03130/p/14181

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Screen went blank, have yellow indicator on monitor, try to reboot, getting three beeps, nothing more.


One beep during startup is "good", but THREE is not good.

Three beeps means a hardware fault -- probably that the video-adapter on your computer has failed.

Connect the monitor to another desktop/laptop, to confirm that it still works.

Turn the computer off, and disconnect the power-cord.
Remove all the RAM, and then re-insert just one stick.
Reconnect the power, and try to boot.
If you still get THREE beeps, turn it off.
Disconnect the power-cord, and reinsert the remaining RAM sticks.

If you still have the problem, then it's time to replace the video-card on your computer. Take the computer to a computer-store, so that they can sell you a video-card that will be compatible with your motherboard.
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My monitor screen is ok for awhile but suddenly turns a dull yellow color. I just bought it a few months ago.


Hi,
you must adjust the display settings in the software program that was being used to change the display setting.
  • If you have a flat panel LCD monitor, unplug the monitor power cable, wait about 30 seconds, reconnect the cable and then turn on the monitor. This resets the electronics on the monitor.
  • Make sure the monitor has power - the light on the monitor is on. If the light on the monitor is off, the monitor does not have power. Connect it to a different power outlet.
  • If the monitor has a detachable video cable, obtain a second monitor cable for testing purposes in case the cable is bad.
  • follw the another steps-
  • Replace the monitor power cable.
    1. Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
    2. Replace the video cable. Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
    3. If the monitor does not work after replacing the cables, replace or service the monitor
  • Thanks,

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    Hi,
    The most likely cause of your problem is your display card and not the monitor. If the monitor led is blinking there is most likely no VGA signal being sent to the monitor. Plug your monitor into a PC that you know is working and check to see if it works through the other pc.
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    Sounds like you don't have a stable connection. Try shutting down PC, and disconnect the monitor, and reconnect it, and turn PC back on, then turn the monitor on...

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    LG 700E monitor's power LED blinking continueously, no display


    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 occurr 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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