It is important to know these images so that you will know which section to check when you. Display problems in crt tvmonitor electronics repair. Simulating crt or vector displays for more realistic emulation. Pincushion distortion, brightness, convergence, language select, tilt. The larger the screen, the worse the corners typically get.
If so, i will sell my monitor and get a smaller one, but i suspect a new video card might cure my problem. Crt image sharpness depends on many factors including beam size, focus, color registration, and video bandwidth. Hvsize, pincushion distortion, degauss, trapezoid, recall settings, rotation. At this point, any major discoloration or distortion problem youre seeing on your monitor is probably due to a physical problem with either the monitor itself or the video card. Why crt monitor s image expands when a bright image is displayed. To verify if it is the monitor, connect the monitor to another computer. Gateway ev910 crt monitor 19 overview and full product specs on cnet.
How to fix a distorted or skewed image on the monitor. Exposing a crt to a strong magnetic field, such as unshielded speakers, can cause more extreme image problems. Why does my monitor stretch and distort my display. Mag innovision 720v2 crt monitor 17 overview and full product specs on cnet. Details about compaq fs740 crt monitor tested readyvintage gaming with many resolution modes 1 viewed per hour compaq fs740 crt monitor tested readyvintage gaming with many resolution modes. Compaq fs740 crt monitor tested readyvintage gaming with. The larger the viewable area gets, the more the crt s depth increases.
The different types of crt monitors from shortneck to fst. A crt that sits in one position for months or years can be affected even by the earths very weak magnetic field, causing distortion and other display problems. Inside the desperate fight to keep old tvs alive the verge. Flash works fine, games run fine, all videos work fine. Why crt monitors image expands when a bright image is. Crt makers had been trying to reduce the depth by increasing the angle of deflection within the tube. Do all widescreen monitors distort and stretch the image out sideways. When i try to edit image distortion pincushion and pin balance, i cant edit it and even if i try, it just stays at 100 while other image. On a variety of crt monitors ranging from sony 19 to off brand 17, i have noticed that when a white field is brought up, the. To some beginners, they do not know how a pincushion or a keystone distortion problem look like. The longstanding rule of thumb was that a monitor s depth matched its diagonal crt size.
By jestine yong on may 9, 2010 i suggest that you print out this images of crt tv monitor display problems for reference. Replace the monitor when you try another monitor in place of the one you have and the problems go away. Use the displaymate focus matrix, resolution matrix, scaled fonts, page of text, and defocusing, blooming and halos test patterns to evaluate sharpness over the screen. If your monitor works fine on another computer, there may be a problem with the video card in the computer. If the monitor has the same distortion on another computer, you have a bad monitor. Its caused by the color guns being subtly out of alignment due to the guns hitting the far corners of the display from slightly different angles.
732 734 890 516 81 871 908 901 270 87 1166 1201 863 363 522 328 76 1385 74 477 647 214 22 1262 131 1449 487 1249 24 1314 725 969 1286