Question about Dell UltraScan P1110 21" CRT Monitor

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Weak red and green color of Sony GDM500PS

Last week, my GDM500PS got the deflection problem. As most people suggested in the Web, I replaced the IC007 (CXA2043Q). When I powered up the monitor, it is OK initially. However, after 5 minutes or less, the red color is missing and the green color changed to greenish yellow. At first glance, the red gun is dead. But the white color is still white (that is, RGB is OK). It seems to me that the new chip causes the malfunction or wrong color processing of the monitor. Do I need to use Sony DAS software to tune the monitor or is there any simple method to adjust it? Thanks.

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Re: Weak red and green color of Sony GDM500PS

Sounds like another IC has failed. there is one in this chassis (21N3) that causes similar problems. but i cannot recall what it is or it's IC designation, but i do beleive it is on A board

Posted on Aug 19, 2007

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The screen turns green after playing videos for 20 minures

The Video Controller works off of the RGB principal. RED/Green/Blue pixels. The mix color is dependent on the formation and density of the pixel and rates. When one or more colors are absent the only functioning color will dominate, and it is Green in your case. The screen liquid crystals in Red and Blue are failing and only a screen replacement will fix the situation.

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Can't red and green colors

This usually means the red or green or both primary color module is bad. Monitors come with 3 primary color module controllers and they use them in various combinations to make the other colors. The primary colors are blue, green, and red.

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the circuit that maintains voltage to the color for the red color is weak and has possible weak or defective parts that need replacement. In this case it could be the high voltage tranformer or regulator at the color compensator circuit that maintains the balance of the color or color pins at the CRT tube. They are becoming weak and the tube may need replacement.

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No red colour in my lg lcd monitor colour setting doesnt bring any change i screeen..pls suggest some solution

it is very simple, by default in monitor circuit RGB (Red, Green, Blue) tube is installed. and in combination of both of three colors we are able to view colorful image. due to non functionalty of Red color u r not able to view red color in screen, either you replace picture tube or purchase new monitor. coz cost of this tube is equal to monitor.

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Sony SDM-HS73 problem

there may some spike(voltage goes above 1000v for few microsecond) come from electricity board
which may damaged colors ic you have to replace it and connect spike arrester before pc

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Crt monitor video chroma processing

first you check the signal cable continuty by multimeter then correct it if faulty .if ok then give -ve click at red cathode on crt base in on condition if red raster comes on screen then red cathode is ok same thing for green and blue cathode if green cathode do not shows green raster after -ve click then crt is faulty then give -ve click at R point at color raster ic which has heat sink if red color comes then ic is ok same thing for green and blue if ic is faulty then replace it if not then check bipolar capacitor if faulty then replace it

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Color problem MAG Innovision 14" monitor

1. try to connect to another computer . if it is fairly good then it must be your computer is having a problem.may be your video card problem.

Mar 21, 2008 | Mag Innovision lt456s 14" Flat Panel LCD...

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Sony Trinitron K29 inch CRT TV screen shows green shade!

i have the same problem with my sony trinton tv 36 inch if you know how to fix this please email me on

Dec 30, 2007 | LG Flatron 295LM 22" LCD Monitor

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Colors are off after auto adjust

I seem to have found the solution (and the cause, perhaps?) for this problem!

I was having the EXACT same problem with a monitor I'm repairing for a friend. The capacitors on the power supply board were blown (CapXon capacitors, who'd've guessed), which was keeping it from powering up. After replacing the capacitors, the screen worked beautifully. But it had this weird yellow tint!

The strange part was that pure colors - red, green, blue - all appeared perfectly OK on screen. Curiously, the menus would show in the proper colors, except for one: the manual color adjustment menu, which illustrated "Blue" as a sort of off-green in the icon. Auto-Adjust would always fix the colors for a split second, then go back to yellow. Reset didn't fix it. Color reset didn't either. So, exactly the same problem as above.

The solution I found was hidden within the main menu itself, a sort of "easter egg". <b>Hold the Menu button down while pressing Power, and hold it down until the screen, and menu, appear</b>. There will now be a hidden selection, "Auto Color", printed in a red-on-black font at the bottom of the menu. Use the +/- buttons to access it, and press Menu. Voila! PERFECT COLOR! Perhaps this menu was accessed by accident, and calibrated to an incorrect color key. But now my picture works great, and the setting lasts through Auto-Adjusts and Resets!

Hope this helps some people, it sure saved my ****! ;)

Dec 05, 2007 | AOpen 19" LCD

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