Question about Dell E173FP 17" LCD Monitor

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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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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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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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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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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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1 Answer

Monitor light blinking


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 statebecause 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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I recently had the same problem occur on my LCD Panel and this is the response I received from ACER.

Thank you for contacting Acer America. I apologize for the inconvenience that you have experienced. If the green power on LED blinks rapidly, it means that the monitor is not getting any signal from the computer. It is possible that the monitor may have faulty internal component, I suggest that you send your monitor to a local repair shop to have it tested properly.

Respectfully,
Acer America
Online Technical Support

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1 Answer

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

Dec 08, 2007 | Dell E173FP 17" LCD Monitor

2 Answers

Monitor will not turn on


Unless you recently installed new video or monitor drivers, it sounds like either bad cabling to your computer (check the cables?) or the ribbon cable inside the LCD monitor has come unseated.

The unseated ribbon cable problem is more common if you recently moved the monitor or dropped it a bit. You can open the back of the LCD monitor (unplug it first of course) and check to make sure the signal ribbon is seated properly, this is a common problem.

Good luck...

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