Question about HP Pavilion dv9543cl Notebook

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Monitor has intermittent color and signal degradation problems. Wiggling the monitor will fix it, but it will reappear. Internal cables are tight. Any ideas?

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Internal cables may be damaged, try replacing cables, also the screen matrix might have been hit by something [it doesn't have to be hard] and now is not responding correctly every time

Posted on Sep 24, 2009


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When plug in my SyncMater 910v monitor, there is only colorful line in it, no image; when I unplug it, there is "Check Signal Cable" on it. What sould I do to fix it?

Try to connect the monitor to a different desktop/laptop, to see if the monitor works at all.

However, it may be cheaper to REPLACE the monitor, with a new LCD monitor, than it would be to take the monitor to a TV/video repair shop, to try to REPAIR it.

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Our screen has suddenly turned "reddish" in color. Cannot adjust this from the computer or on the monitor itself. Any suggestions?


1st try display drivers just reinstall if not then you have a problem with your motherboard u have lost your display from motherboard

you have to go for new display card

Jul 09, 2010 | Computers & Internet

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Monitor green light comes on then it says no imput

looks like there is problem with ur signal cable check that monitor signal cable is tightly fixed or contact ur product support center.

Mar 31, 2010 | HP Pavilion F1523 15" LCD Monitor

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My monitor blureed

Check you have not put any speaker or anyother item wich produce high magnetic field. It will creating this problem.

Sep 23, 2009 | ViewSonic A90f+ 19" CRT Monitor

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My screen sayin signal cable disconected

if you are using an lcd monitor, make sure you have connected the vga (screen cable) properly and tight both on the tower and your monitor. if its crt monitor then make sure the vga cable is tightly connected to the tower on the female connector

Jul 19, 2009 | Dell UltraScan P1110 21" CRT Monitor

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The brightness and color have dimmed.

This could be something with the cable or an internal connection if it is intermittent.

Mar 02, 2009 | E-Machines eMachines Monitor E15T4

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Color on monitor

If going to DEGAUSS (Magnet or upside down U) doesnt work, and you have already changed the colors, try wiggling the cable (Look for changes, same happened to my old monitor) and if all elsa fails, give it a proper burial...

Feb 21, 2008 | IBM 17IBMRBABLKNR

1 Answer

Red problem

It sounds like it's probably a problem with the cable or connection. Usually this happens when the connector isn't seated properly. The first step would be to re-seat the VGA connector by taking it off and putting it back on.

If that doesn't work try wiggling the connector where it attaches to the monitor and see if the red goes away. If there's no change on the monitor side, try the video card side.

If wiggling one of the connectors causes it to work intermittently then it's a problem with the connector. I'd suggest replacing the cable next (unless it's permanently attached to the monitor).

If replacing the cable doesn't do the trick then the problem is either with your monitor itself or your video card/onboard video. If you can, try connecting the monitor to another computer. If the problem doesn't go away then the problem is with your monitor. If the problem does go away then the problem is with your computer.

If the problem is the monitor I would suggest replacing it. Repairing a monitor is difficult and can be dangerous. Having it repaired by a professional is probably going to be more expensive than getting a used CRT on Craig's list or something.

If the problem is with your computer and it's a desktop I'd recommend having a new video card installed. If it's a laptop then you should probably send it back to the manufacturer for repairs.

Jan 25, 2008 | Gateway FPD2275W LCD Monitor

1 Answer

Problem with the monitor


The three boxes represent the built-in diagnostics of the monitor. The letters G is green, B is blue and R is for red, the 3 color guns of the picture tube of your monitor. The words "Self Test" indicates that it is in diagnostic mode since it has powered up, it is also then expecting a video signal from a source to be coming in; the display "Check Your PC And Signal Cable" indicates that it is not receiving any video signal from the source which is your PC or more specifically the PC's video card; and the display "Monitor Working" indicates that the diagnostic has determined that nothing is wrong with itself and therefore it has got to be your PC that is in question. The intermittent appearance of the boxes is when the diagnostics restarts itself and eventually finds the same problem.

To determine if it is the PC or the monitor, use another PC (even a laptop with matching VGA output) and try it with your Compaq monitor, see it it will work or alternately, try a different monitor to connect to your PC. The outcome will determine which is at fault.

If you have determined/verified that it is indeed the PC, you should focus on the video/graphics card. In some PC models/versions, the graphics/video is built-in to the motherboard and you should check the memory since this is shared. The only way is to replace either.

Hope that this be of some help/idea. Pls post back how things worked out or should you need additional information.

Good luck and kind regards.

Dec 07, 2007 | Compaq FS7550 17" CRT Monitor

1 Answer

About colors

It sounds like either an internal wire is loose, or possibly in the connector to your video cable. Make sure the connections for your video cable are tight both at the computer and at the monitor. If they are, try a different cable (cables are much cheaper than monitors, always start with the easy solutions first). If the problem is internal to the monitor, then it is up to you to decide whether to try to diagnose/fix it yourself, or buy a new monitor. The cost to pay someone else to fix it is likely more than the value of the monitor.

Feb 21, 2007 | SAMTRON 55V 15" CRT Monitor

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