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Monitor problems It does not power up. The power cord is good. Should I open????

Posted by David Alexander on

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No - not unless you are ready to buy the next one. Seek advice from the Acer Tech Support team.

Posted on Jul 10, 2007

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1answer

I NEED APOWER CORD FOR DAEWOO L950

I can't find information online about your monitor, so I'll give you a generic answer for all monitors.

Almost all monitors use a C13 cord - the same kind used for a desktop computer. Some use a C7 (two-wire, like that used for some name brand laptop adapters) or a C5 (three-wire, used on other laptop adapters)
C13 image:
173-0602-e.jpg
C7 image: ac15wna-r.jpg
C5 image:
173-21103-e.jpg
These images were lifted from the Mouser Electronics website (AC Power Cords Mouser ). They also carry C13 cords with right-angled plugs, which may be more convenient with some monitors.

There are a very few monitors that use an external power supply, which is like a laptop computer power adapter. If this is the case, the voltage and current requirements for the power supply should be on the label on the back of the monitor, and the only other thing you have match is the plug on the power adapter output cord (it needs to fit the power jack on the back of the monitor). Note: the voltage of the power supply must be the same as that shown on the label (usually 12 VDC) and the current rating must be the same or higher. If you don't see the voltage and current listed on the label, look closely at the power jack - the numbers may be molded into the plastic next to it.

It is rare to find a monitor with a permanently attached power cord. If this is the case with yours and it is damaged, do not attempt to splice it outside of the monitor. Put a replacement plug on if the good part of the cord is long enough, and use a good extension cord. Otherwise, you should open up the case and replace the entire cord. You will probably have to get a connector for the part of the power cord inside the monitor also. (If you are good with soldering, you may be able to splice to this connector, using heat-shrink tubing to insulate the connections.)
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How to open lg flatron w2241s

Good evening guys, I have a problem with my LG monitor (W2241S). When I start plugging the power cord into the power port, it doesn't make good contact so the screen won't turn on. Can somebody help me? ??
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My monitor will not turn on. I verified that I do have power to the monitor but when I press the power button nothing happens. Also how do I open the monitor case after removing the screws on the back?

I would suggest you leave the idea of opening the monitor for now and do the following checks first:

- Check the power cord if it's properly connected and not loose.
- Use another power cord to make sure it's not the power cord that's faulty

Do not open the monitor, unless you know what you're doing, as this may only deepen the problem.

hope this helps.
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3answers

Monitor power light blinks, then goes out. PC screen goes black.

Unplugging the power cord repeatedly is not a good idea! I hope this helps: 1- After you get a picture, go to "Device manager" (Click on Start-Programs-settings-device manager) and make sure that there is not question or an exclamation mark next to Monitors. If that is the case you might need to reinstall the driver! 2- Make sure that your video card is not faulty by hooking up a different monitor and see if it is working ok. If you still have the same problem, then you need to replace the video card. 3- Check all cables and power cords and make sure that there's good connectivity on all ends (before powering up the machine) and that there are no nicks or cuts. If possible try replacing the monitor's data cable as well. Good luck
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Dell e137fp monitor flashing green...

Below you will find my recommendations for troubleshooting this issue:

1. Reseat the power cord and verify a good power source.

To reseat the power cord, follow the steps below:

1.1 Power down the system.
1.2 Unplug the power cord.
1.3 Wait approximately one minute.
1.4 Reseat the power cord.
1.5 Verify that the power cord is plugged directly into a known good power outlet.

2. Verify that the monitor is receiving power from a known good outlet and bypass any power strips.

To test the power outlet, perform the following steps:

2.1 Unplug the monitor power cable from the power outlet.
2.2 Plug in a different device, and verify that the device is operational.
2.3 If there is no power try another outlet. Remove any power strips and try plugging directly into the main power outlet.

3. Verify the monitor is powered on and the power button is engaged.

Ensure that the monitor is powered on and that the power button is fully engaged. To do so, check the power LED on the front of the monitor; it should be lit.

NOTE: There are two types of power switches:
A mechanical switch characterized by a long travel. You have to push it further and you will hear an audible click.
An electrical switch that has a short travel and almost no click.

A lit monitor LED can be any of the following:

* Green
* Blinking green
* Yellow
* Blinking yellow
* A combination, such as alternating green and yellow

Any of these states indicate the monitor is receiving power and that you should proceed.

4. Swap power cables.

To try a known good power cable on the monitor, follow the instructions below:

4.1 Turn off a working monitor.
4.2 Unplug the cable from the back of the working monitor, and unplug the cable from the wall.
4.3 Unplug the cable from the monitor in question.
4.4 Plug in the cable that came from the working monitor.

5. Run the monitor self test.

To run the monitor self test, perform the following steps:

5.1 Power off both the computer and the monitor.
5.2 Unplug the video cable from the computer or video card.
5.3 Reseat the power cord to the monitor, ensuring it is plugged into a known-good outlet.
5.4 Power on the monitor.

NOTE: The monitor self test will move around on some monitor models. If the monitor self test moves, allow it to move to the affected areas of the monitor to check for the problem described.

If the Self test failed, it's possible that the monitor is faulty. Contact dell to check if it's still under warranty so they can replace it.
0helpful
1answer

My monitor won't come on, can't even get a power light.

this is the power supply problem. once again check with another good working power cord for the monitor.it may work.
0helpful
1answer

Power supply

it is not the power cord you should chk for th video cord. it mean there is no siginal coming from the CPU.


Thanks for using fixya. Hope this solution may have helped you.
0helpful
1answer

Monitor loses power randomly.

It could be the solder conections that go to the board . Open the init and check the solder thaere first. Go here for instructional videos on opening the unit.
http://www.lcdrepair.us/Installation.html
0helpful
1answer

Biostar P4M80-M7A motherboard

You're board does not use an integrated graphics card.
Monitor does not have video display. There can only be four reasons why.
1. The monitor's video cable is not connected correctly at each end (Video card & Monitor) or cable is bad.
2. The monitor’s power cord is not plugged into a good power source or cable is bad.
3. The monitor may be bad.
4. * The AGP graphics card is either not seated correctly in its AGP slot, (remove/clean copper contacts with alcohol/allow to dry & reseat snuggly), or graphic's card is bad.
Monitor’s power cord can be switched with the PC's power cord.
The video cable & monitor can be swapped by borrowing from a friend.
(Just make sure their stuff is working first).
Never open the PC case without unplugging the power cord first.

Luck!

Mike
0helpful
3answers

Screen blacking in and out

Hi Esdee, Don't be too surprised if the monitor is having problems. The fact that it does the same thing on another PC is pretty good proof that is in fact the monitor. As far as what is going on the green power LED going on and off in conjunction with the blackouts indicates a power problem to me. - Does wiggling the power cords, plugs cause any change? - When the screen blacks out shine a flashlight on the screen and look to see if you can see any faint images. If you do then you have a backlight problem. If none of this works any further troubleshooting really requires some experience working around electronics and high voltage. Let us know how you want to proceed, as as always please don't forget to rate this posting.
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