Question about Hyundai ImageQuest 19 L19T LCD TFT 19" LCD Monitor

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Power supply has shut down, with the power -on LED flashing on and off. It rather looks as if the power supply is trying to start up and then immediately shuts down.

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What system is it connected to laptop or desktop? if a laptop try using the Fn+ Monitor buttton ...it may be in a different mode .. if desktop try another monitor if it works then the issue is something else or if it still does not work then it could be a loose video card try reseating the Video card

Posted on Oct 06, 2009

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Posted on Jan 02, 2017

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Ibm x3400 is not powering on green led blinking continiously


Hello here is others with the same problem:

http://www.ibm.com/developerworks/forums/thread.jspa?threadID=397434&start=15&tstart=0

It looks like the power button is failing.

The fault could also be the mainboard.

Try also to talk with a autorished dealer or a repair shop.

Good luck

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Panasonic PTL500U LCD HiDef projector. Unit occasionally powered up briefly, lamp lit, then shut down, standby LED flashed orange/red. Sometimes lamp lit and sometimes not. Technician diagnosed bad ballast...


If you take the back off you might find a couple of bulged electrolytic caps on the power supply board that need change, or just buy a new power supply at www.partstore.com

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My gateway computer do not turn on.the fan try to start and stop.what should be happenning?


I think that the CPU fan isn't working as it should and the CPU is overheating quickly. If the CPU is heating too fast, the mainboard is automaticly shutting down the all PC to prevent damage. Your thermal paste might be gone. Isn't the computer giving any sounds or LED flashes ?

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Dell Dimension 9200 keeps shutting down and won't start up


the key issue on the uncommanded shutdown is the POWER LED. If upon shutdown, the power LED Flashes AMBER, then the power supply is suspect.

If no flashing amber indication, then the next think I check is the heatsink (Processor overheating) remove, clean and apply arctic Silver heat transfer paste, see if the issuje goes away

Last but not least if the system is failing to boot, and displays a 3 4 diag LED code, then you may have a RAM module that is bad or may just need reseating. Running diags off of the Rersoujrce CD is something to look at too

Mar 28, 2009 | Dell Dimension 9200 PC Desktop

1 Answer

Psu shut down


99% TIME IT IS A FAULTY FAN GOING OUT.

REPLACING THE FAN INSIDE THE POWER SUPPLY WILL RESOLVE THE PROBLEM.

P/S ARE CHEAP, JUST BUY A NEW ONE OOR REPLACE WITH ONE YOU HAVE ON HAND

CANDYMANGANDY

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Green light flashing after shutting down computer to relocate office.


if its by the power button the led just indicates power after u have removed its source and reconnected it........this is normal nothing to worry about.

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Flashing Lights when powered down


The flashing LED is because your system is in "sleep" mode. By default windows Vista puts your computer in sleep. What this means is it doesn't shutdown the power completely it leaves a little going through certain computer components (more specifically the ram) to speed up the boot time when the power button is pressed again.

In XP a the default shutdown scheme is a complete shutdown where power is turned off after the shutdown process is done. If you are using XP you are putting your computer to sleep when shutting down.

As for the boot problem. Newer motherboards have an LED on the actual board to indicate that it is receiving power. If it is of either the power supply switch (at the back of the case) if off or the motherboard connection is loose and the shaking makes it fall into place. (Shaking is usually not necessary and indicates a problem...)

There are a few possibilities I can deduct from your description:
  • the connection from your power supply to your motherboard isn't properly seated and is causing this
  • the power supply switch (not the case switch) is being  turned off and results in the computer taking a few seconds before the internal LED become solid
  • ... the dreaded sign that the power supply is failing and is on it's last legs...
My suggestion is to check all connections and if that doesn't work borrow a power supply from a friend and swap them to see if it boots properly.

(If a friends with a spare power supply isn't an option a local PC repair shop should be able to help you out... but probably for a fee...)

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3 Answers

No power


Did you try removing the power for about 10 minutes, then trying again?

do you get any lights or sounds after trying that?

Oct 11, 2007 | HP Pavilion a775c (A775CB) PC Desktop

2 Answers

PC totally locked


The flashing power switch and power supply LED on the rear in conjunction with a power failure or surge indicates that there is a defective component; typically the power supply, motherboard, memory, processor or modem. -Disconnect all the power supply leads, drives, and motherboard as well as any USB, firewire and other external devices. -Plug in the 115v power supply cable and look at he LED on the back of the power supply. If it is still flashing the power supply is bad and needs to be replaced. -If it isn?t flashing then unplug the power supply plug in one device, plug in the power cord and watch for the flashing LED again. If it?s flashing you?ve found your culprit, if not move on to the next component and repeat the process until you?ve found it. Don?t forget your plug in cards could also be the problem. Good luck and let us know if you have any other questions. As always please don?t forget to rate this posting.

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