Question about SAMTRON 55V 15" CRT Monitor

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I have a problem with hp crt monitor can't display caracter but only light like rainbow on the screen can yaou give me solution please thanks

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  • sanjaypillar Dec 01, 2008

    hey even ma monitor color s changed so plz/............ help me out wid tis

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Hi...there,
Well, it is time to upgrade to a LCD flat screen monitor... The one you got it's busted.... You get buy one 19" LCD monitor less than $200...

Posted on Dec 01, 2008

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Posted on Jan 02, 2017

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1 Answer

LG 700e crt monitor is showing all in rainbows!!!!


Remove any speakers or magnets that you might have near the monitor as they can cause visual distortion on your monitor screen.

Mar 05, 2014 | LG Studioworks 700S 17" CRT Monitor

1 Answer

When i switch on my pure legato cd 40 the screen comes on then goes of the system works fine but i can't see the screen to access the menu can any one please help thank you.


This kind of problem is certainly a hardware problem, and there are two possibilities:
1) Problem with light background or its voltage source: you can try to see closer direct to display for some caracter with an external light source (like portable light). If you can see some caracter, you should measure voltage wich feeds display backlight and follow its voltage line.
2) Display (or driver display) damaged: If you dont see any caracter signal, you should replace the whole display module.

Dont forget to rate

Oct 30, 2013 | Computers & Internet

1 Answer

Toshiba satilite C6550 has rainbow lines on half my screen the other half is fine ?


Sounds like the screen is going bad. Isolate the problem by plugging an external monitor to the laptop. Borrow a monitor from a neighbor, friend, relative or co-worker to plug to the laptop. It can be any kind of monitor even the old big fat crt monitors as long as it has a vga cable to connect to your computer's vga port. If the Borrowed monitor does not show the rainbow lines, that proves your video card is ok and the problem is your lcd screen. If the borrowed monitor shows the same rainbow lines it means your video card inside the computer has the issue.

The video will show on most systems when you reboot without you having to do anything. Some systems will require you to hit the FN (Function key) + F1 thru F12. Hold down the FN key then hit the correct key for displaying on the monitor (F1 thru F12). The correct key will normally have CRT/LCD on it or it will have the icon of a display.

May 18, 2012 | Computers & Internet

1 Answer

Toshiba lap top half screen rainbow lines


Sounds like the screen is going bad. Isolate the problem by plugging an external monitor to the laptop. Borrow a monitor from a neighbor, friend, relative or co-worker to plug to the laptop. It can be any kind of monitor even the old big fat crt monitors as long as it has a vga cable to connect to your computer's vga port. If the Borrowed monitor does not show the rainbow lines, that proves your video card is ok and the problem is your lcd screen. If the borrowed monitor shows the same rainbow lines it means your video card inside the computer has the issue.

The video will show on most systems when you reboot without you having to do anything. Some systems will require you to hit the FN (Function key) + F1 thru F12. Hold down the FN key then hit the correct key for displaying on the monitor (F1 thru F12). The correct key will normally have CRT/LCD on it or it will have the icon of a display.

May 18, 2012 | Toshiba Satellite M35X-S149 Notebook

1 Answer

I have a hp laptop. was on line and screen went black. and will not show again. it strats up sounds but black screen.what do i do


1) Do you have a VGA monitor that you can use for an external monitor?
{VGA monitor is also referred to as a CRT monitor. Looks like a small TV}

The back of the laptop, or side, has a VGA port. The VGA monitor is plugged into it.
{Laptop off}
Then the VGA monitor is turned on, and allowed to 'come to life'.

Now turn on the laptop. Press the Fn key down on the keyboard, and hold it down.
Now press the Monitor toggle over key.
Since you did not state the HP laptop Model Name, and Model Number, I can only give you generic guidance on this.

The monitor toggle over key has a monitor screen symbol on it. It will be one of the F keys.

(It's an External Monitor toggle key.
Press it one time and the display toggles over to an external monitor.
Press it again, and both the laptop LCD screen, and the external monitor have a display on them.
Press it once more, and the display goes back to the laptop's LCD screen )

If display shows up on the external monitor, you have a problem with the display of the laptop.

Primer:
An LCD screen cannot produce enough light by itself. It needs an additional light source.
A Backlight is used as an additional light source.

A Backlight is a CCFL.
Cold Cathode Fluorescent Lamp {Bulb}
Similar to the fluorescent lighting used in homes and businesses, but on a MUCH smaller scale.

{Average Backlight is 3 to 5 inches long, and half the diameter of a No.2 pencil.
The Backlight is located on one edge of the LCD screen}

An Inverter is used to provide power for the LCD screen, and the Backlight.

90 percent of the time the problem is the Inverter.

Inverters are relatively cheap, and if I knew the Model Name, and Model Number of your HP laptop, I could give you a link to HP Support where you could download the Service Manual for free.

This way you would have a manual to show, and detail how to replace the Inverter, and I could guide you.

I could also give links for your perusal for Inverters.

There is one more thing however.

HP Pavilion DV2000, DV6000, and DV9000 series laptops, have a graphics chip overheating problem.
The laptop comes on, the blue indicator LED lights light up, but the LCD screen is black.

This video explains why, shows a solution to fixing the problem, and details out a lot more than I am privileged to state here,

http://www.youtube.com/watch?v=bnkQNmKauEc

Have further questions regarding any of the above, please state in a Comment.
(Believe upper right of your page)

Regards,
joecoolvette

Dec 02, 2010 | Computers & Internet

1 Answer

Black screen with lights on


Try to plug a CRT or LCD monitor to your vga adapter (color blue) at the back below of your screen. If there is a display with external crt or lcd monitor that means your lcd monitor have a problem. In that case you need to replace your lcd monitor.

Please rate me.

Nov 19, 2010 | HP Computers & Internet

4 Answers

My hp 7540 crt monitor menu displays automatically blinks frequently. please hele me resolve this problem. it stays fixed on the screen, unable to do any work.


<div style="FONT-SIZE: 14px; PADDING-TOP: 10px" itxtvisited="1"><span id="ctl00_ctl00_MainColumn_CenterColumn_ThreadBox1_lblProblem" itxtvisited="1">my hp 7540 crt monitor menu displays automatically blinks frequently. please hele me resolve this problem. it stays fixed on the screen, unable to do any work.</span> </div><!-- answer --><!-- from fixya rte -->

May 12, 2010 | HP S7540 17" CRT Monitor

2 Answers

Color patching


in the monitor menu you have degauss
select that option

Jul 30, 2009 | LG Studioworks 700S 17" CRT Monitor

1 Answer

Display color has been changed to rainbow.


AS hit the monitor on its top the color changes to normal. so what can i do AS IT COMES TO normal position after hitting that cleary indicates that there is no parts failure. 1 there is a loose contact in or near crt base. 2 loose contact in connector. 3 computer to monitor cable loose.

Sep 15, 2007 | SAMTRON 55V 15" CRT Monitor

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