Question about LG Flatron F700B 17" CRT Monitor

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Screen Gone "Yellowish" Colour, Appears that Blue colour is not working

For some reason, when the monitor is turn on after 6 hours of rest or more, the monitor screen will turn yellowish just after a few minutes it is turned on. It looks like there are only yellow and red colour, without blue colour. It will keep yellowish in a while. If it is keep turning on for half and hour or more, it will become normal again. However, this will not happen after the monitor is working a long hours. Is this something wrong with the components inside?

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Re: Screen Gone "Yellowish" Colour, Appears that Blue...

Your problem is in blue color cathode circuit. as you say that it becomes ok tha5t means 1 cable wire is loose from computer to monitor. 2 crt base loose. 3 loose contact in blue video ckt. 4 signal processor cable to crt board connector loose.(blue wire)

Posted on Sep 26, 2007

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Yellowish screen

On a CRT, "yellow" is a mixture of all 3 "primary" colours.

So, if you are expecting some other colour, then one of the 3 "guns" that are emitting one of the primary colours is NOT working correctly.

For less than $100, you can purchase a new, 19-inch (not 17-inch) LCD (not CRT) monitor.
This is less expensive than taking the CRT to a TV/video store for trouble-shooting and repair.

Jan 07, 2011 | Mag Innovision InnoVision 786 PF 17" CRT...

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Screen colour suddenly gone wrong colour ie dull and blue tinted, not sure what model number but it is a 19inch 1

It sounds like the video cable plugs are not seated properly or bent pins, please check that out first, also try it with another PC to make sure it is not the PC video card problem.

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Sep 10, 2010 | Fujitsu Siemens Premium Line P15-1 15" LCD...

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Yellowish colour of the monitor

check the datad cable of monitor, if ok.then soldring may be dry ot the CRT neck

Jul 29, 2009 | Samsung 793S 17" CRT Monitor

2 Answers

My monitor colour has changed to yellowish

The first thing to try is to make sure the video connections both at the monitor and the PC are secure. A number of color image problems are just a loose connection. Make sure you remove the connectors and then reseat them when you do this.

Jul 28, 2009 | Samtron 76df 17" CRT Monitor

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The colour depth of my monitor is more yellowish.

is better check your vga cable which attached pc to monitor or change your monitor color on setting

Jul 08, 2009 | Compaq CV 7500 17" CRT Monitor

1 Answer

Colour defect

check cabling wiggle near connector body. Lost of blue color is what you are describing. Good luck

Apr 18, 2009 | Compaq CV 7500 17" CRT Monitor

1 Answer

Yellowish screen from boot up.

Once you press the menu button which is on the monitor if you get menu button then try giving reset or restore factory settings in it.

This solves your problem if your RGB colour settings is not configured correctly.

If your problem still persists then there will be problem in the monitor .
As you have mentioned (YOU HAD IT FOR A WHILE) in your problem if you have manufacture warranty then make use of it.

There is no problem with your CPU,motherboard and any other hardware part except the monitor.

-Dileep Bradley

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Mar 18, 2009 | LG Flatron F700B 17" CRT Monitor

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Hi my monitors screen becomes yellowish.all colour effected y dis

Do you have a CRT monitor?
Have you tried to adjust the color on the monitor?
How is it connected to your computer?
It sound like one of the guns on you monitor died. But there is some testing you should do first.
If it is a CRT monitor and it is connect your computer properly. First thing to do would be to replace the cable and or try a different monitor that you know works.
To confirm try adjusting the color. If that does not work, if it more purplish it is the green gun, if it is orangish it is the Blue gun. That would be cause by a failed gun or driver.
If the gun is gone it is best to get a new one. It will save you money in the long run.

Thank you...

Jan 27, 2009 | Samsung 793S 17" CRT Monitor

3 Answers

LG 17'' LCD Monitor VGA 15 pin connector pin diagram

pin no 1 - Red colour signal (Red colour wire)
pin no 2 - Green colour signal (Green colour wire)
pin no 3 - Blue colour signal (Blue colour wire)
4&5 Not connected
pin no 6&7&8 are (Grounds)RGB Returns
9&10 NC
pin 13 Hohizontal sync signal
pin no 14 vertical sync signal
Not nessasry other pins

Nov 17, 2008 | LG Studioworks 700S 17" CRT Monitor

1 Answer

Dell E196FP TCo99 Monitor screen problems

The screen colour changing is apparently an auto test procedure on the monitor and was prompted by a fault with the monitor not automatically shutting down when the computer is shut down. The settings on the monitor have been adjusted to rectify this and the problem is now gone.

Apr 06, 2008 | Dell E196FP 19" LCD Monitor

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