Question about SAMTRON 55V 15" CRT Monitor

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About colors my monitor is not displaying the red color. When i shake my monitor then it starts showing the red color else red color comes in gray.

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Re: 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.

Posted on Feb 21, 2007

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No red color displayed

If all software setting done perfectly but till color problem in your monitor, then need to call monitor technician. It may occur from crt neck base loose contact or bad contact. need to replace new one.

normally no need to discharge crt capacitor for repairing dry soldering.

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Hi, I have a samsung samtron 55V 15 inch monitor. The problem is it is not displaying the actual colors. The red color appears as a greenish/bluish shade. Ex: The Windows Start button is showing as light...

You have to check for dry soldering in the base board of you mointor. The base board is on which is attached to the picture tube neck. In most cases there will be dry soldering in the pins of cathode diver ic in that base board. It will be difficult find out which pin have the dry soldering. Do on thing resolder all the pins of that ic. This ic cotrols the three cathodes of picture tube (red, blue, and geen) is any one did not get the correct drive that color will fail to display. In your case the red cathode is not getting the drive voltage. Thats why it shows only gree and blue. This is a reular complait for crt monitors.

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check the signal cable bend it in on condition and look what difference in color occurs if so then replace the cable if not that fault then ther is a dry solder on the base of monitor find out and clear it

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1 Answer

My monitor is not showing red colors? how do i fix

There is a number of possible reasons why your monitor lost the red color. A good guess, however, is a broken cable or connector. Check the plug and socket of the cable for bend or broken pins. If everything looks OK, try to change for a different cable.
If the problem persists, a pin of the connector soldered to the PCB internally may be broken. This is an easy repair for a service technician but I really recommend you do not do it yourself.

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1 Answer

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check wheather is there any land phones are there, or any sound speakers present beside the moniotr.

than also not working give the monitor to repair.yes it is fixable.

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1 Answer

Colors in QL-711V shifted to green

Hi, I had the same problem and I wrote an email to Nu. They wrote me back that I should use the Factory reset feature which you have to go through the Factory Menu to get to. Instructions to do this are as follows. I got to the menu my first try but it has been a pain to get back to it. I hope it will be easier to access for yours.

Hope this helps


Page 1
You will need to display a gray scale picture which varys from black to white
You will need to display a gray scale picture which varys from black to white. Displaymate 16 grays pattern is good or something like the picture to the right. 1 Press and hold SEL/AUTO and press the power button. Then release the SEL/AUTO button. 2 Press the MENU key to display the factory menu. Sencore 11 gray Pattern 3 Press the and select FACTORY2 menu. Factory2 is at the bottom. Press SEL/AUTO to select the FACTORY2 menu. 4 Press the to select AUTO COLOR. 5 Press the to run AUTO COLOR. Wait until finished. You will see the colors changing and then become stable when finished. About 10 seconds. 6 Press the and select COLOR UPDATE. 7 Press the to run COLOR UPDATE. It will finish quickly. < 1second. 8 Press MENU to exit the menu. Power off/on.

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1 Answer

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So your sure when you go into the monitor settings, and color, it is set to like 9300k or something? It probably isn't the monitor, because the video games you said display just fine.

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