Question about Sceptre S1902D 19" LCD Monitor

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Spectre s1902d monitor powers up fine (blue light remains on without flashing). When turning on PC, while booting up, monitor screen flashes very quickly the desktop screen, but shuts off immediately and turns to black screen, then nothing will happen and the monitor power light stays on blue without flashing. Power supply cable and vga cable seem fine (i tested them on a different system).

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Mark_Webber
  • 472 Answers

SOURCE: Monitor displays breifly then goes to blank screen

I am not familiar with your particular model, but I do know what the problem is.
The inverter that runs the lights behind the screen is faulty and needs to be repaired. The lights shine from the top and bottom and reflect outwards through the panel so you can see what is on the screen. If you start the computer up, then shine a bright light into the panel you will see an image on the screen, but very feintly.
This can be cheap, it can also be expensive depending on where you go to get it repaired. Call aorund to a few TV shops in your area to get a rough idea on prices.

Hope that helps =)

Posted on Apr 11, 2008

  • 8 Answers

SOURCE: no picture sceptre 7x 17" monitor

Check for a bulged capacitor. They should be flat on top, look for one, possibly two with a "bulge" on the top :)

Posted on Nov 30, 2008

  • 1 Answer

SOURCE: Gateway LCD powers on but has no picture

To solve your problem you can go to any rad shack or electronics store and pick up a DVI-AVG adapter. The're about $14.00.

Posted on Jan 27, 2009

  • 5 Answers

SOURCE: X20G Fails To Power Up - Soloution Found

I have exactly the same problem with my X20G monitor. There is a design problem with the LCD controller board and the Power supply board. The problem is the power sequencing of the power supplies feeding the LCD controller chip. The 2.5V rail has to come on first before any other power rails. Also, some of the power rails don't discharge completely during power down. I was able to fix my X20G by adding a wallmount power supply to feed the 2.5V DC-DC converter input (blue wire) and adding bleeder resistors on two of the power rails on the LCD controller board to discharge it during power down. With this setup, I do the power sequencing by plugging the wallmount power supply first before the plugging the main AC power of the monitor. Only try this fix if you have good knowledge of electronics.

Posted on Jun 23, 2009

  • 35 Answers

SOURCE: monitor worked fine for years, then permanent standby

hey
usually this happens due to static try to power cycle the monitor by disconnecting all the cables from the monitors
then connect teh cables back one by one
and see if it works and if not yes get teh monitor replaced

Posted on Sep 18, 2009

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Does it sound like the laptop booted up except the screen is black? Do you hear the fan running and the hard drive spinning? If so try the steps below.
Shine a flashlight on the dark screen to see if you barelysee the icons on the desktop. If so, then the LCD Inverter is bad.

Plug in an external monitor and see if the display shows up on it. It can beany kind of monitor even the old big fat crt monitors as long as it has a vgacable to connect to your computer's vga port. If so that proves yourvideo card is ok. The video will show on most systems when you rebootwithout you having to do anything. Some systems will require you to hit the FN(Function key) + F1 thru F12. Hold down the FN key then hit the correctkey for displaying on the monitor (F1 thru F12). The correct key willnormally have CRT/LCD on it or it will have the icon of a display.

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If the monitor has no power at all then you have a dead power board, or a broken power cord, test also a different wall AC outlet.

If instead there is a flashing led on front of the monitor, 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.

1 The 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 suddenly are a blown capacitor on power board, the inverter board powering up backlight lamp has blown, or a fault on main lcd controller board.
check also the video cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.

Check connectors, try moving the video cable, and if the cable is not built in, then also try a replacement cable.
Regards

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while the monitor is still powered on, but with the LED flashing, unplug the monitor from the PC. press the power button, and the monitor should go off, now plug the pc back into the monitor. Turn the monitor back on and it should work.

Occasionally this will not work for me, but if I repeat it it normally works

Hope this helps - my problem is intermitant so it may be different to what u guys have

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