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Color bars flashing

The monitor went off and wouldn't do nothing but flicker now it comes up with large color bars what's up

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Try to shutdown your computer and monitor and let them "cool off" for about 20 minutes. If the problem persist the next time you turn it on, the graphic card might be the problem.

If you need any aditional help, let me know.

Posted on Jan 04, 2014

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Posted on Jan 02, 2017

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1 Answer

TV shows a large white square upon turning on, almost as large as the screen. Nothing else will happen.


If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
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The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.

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1 Answer

Monitor blacked out and now it's come up with flashing large color bars, what's up


Try to shutdown your computer and monitor and let them "cool off" for about 20 minutes. If the problem persist the next time you turn it on, the graphic card might be the problem.

If you need any aditional help, let me know.

Jan 04, 2014 | Acer Computers & Internet

1 Answer

Monitor flickers, similar to a fluorescent light bulb that is going out. Also, there is one line on the left side of the screen, going up and down, that changes color, but it comes and goes. I thought...


The problem is in the monitor screen, there is a large circuit board connected behind the main display screen. The video signal is feed to the main board and generates the proper color balance, the second problem is the lamp behind the display is flickering and breaking down. To repair this will not be cost effective, cheaper to replace the monitor. But I would suggest hooking a spare monitor to the computer to make sure there are no additional issues.

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1 Answer

Flickering screen with color bars


flickering screen with color bars may point to a problem with your fibre and this may call for you to change the fibre to prove if its a problem with the fibre connect to an external monitor if the problem does not occur then you can conclude that you have to change the fibre

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Flicker at bottom of screen


check in the bios by taping F10
if the screen is flickering in the bios then it is a hardware issue
if it does not flicker in the bios then it is not a hardware issue
try updating the display driver
if it does not work then needs to perform a recovery on the computer

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1 Answer

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This is a very common problem with this monitor. The internal power board has failed. I have repaired hundreds of these. If you are interested in repair, contact me at sure-power@nc.rr.com.

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1 Answer

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I had a similar problem on a different monitor and fixed the green sparkles by selecting a lower refresh rate.

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Hi, The part where you see some color bars and blinking green led is what we call MONITOR SELF TEST. A diagnostic pattern consisting of four colors (red, green, blue and white) appears, and the LED flashes slowly. this happens when signal cable from the monitor is disconnected from the tower and leaving the power chord for the monitor plugged in. If the monitor works properly on a different computer. then its a problem with the computer's video card sending out signal. im 85% sure that its a problem with your video card.

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1 Answer

Screen flicker, color swirls


Mine does the same has done since new, It was sent back and when returned it still does the same. If i tap the top of the screen it comes right again for about 10 miniuts

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