CRT computer monitor - troubleshooting

Hi,

Since your monitor does not display anything make sure your source source (CPU) is working properly. Try connecting a functional monitor to check if you are getting the picture there.

The life expectency of a CRT monitor is around 8 year on average. Did you monitor show any signs of blur display or balck and white display before it turned off completely? In that case the problem should either be with the power video adapter or the CRT Tube itself, either case it is not worth repairing your display and a replacement would be a lot better. 

Caution: Unless you know what you are doing do not try to open and repair a CRT monitor by yourself. Like all doomed displays they operate on high voltage and have large capacitors which can store power even after weeks you turn off the display. 

I wonder you are still using CRT Monitor, they are outdated now. However, there are thousands of reasons for a monitor not to work. But start with either connecting another CPU to this monitor or connect the CPU to another monitor and see if the problem is with CPU.

Also tell me if it shows "NO SIGNAL", when you disconnect the CPU from it.

it does not show 'NO SIGNAL' - there is nothing on the screen - blank only - the computer is ok - 

helo,

problem is not with computer - the computer is ok - the monitor does not show ' NO SIGNAL' on the screen - only blank screen - please tell a solution

helo

no result - i think the fbt circuit is complaint

Verify that no pins are loose, bent, or missing on the cable or the connectors on the CRT and video card, and then tighten the cable at both ends, If that doesn't fix the problem, open the computer, remove the video card, and reseat it fully.

The cathode-ray tube is a vacuum tube that contains one or more electron guns and a phosphorescent screen and is used to display images.It modulates, accelerates, and deflects electron beam onto the screen to create the images. The images may represent electrical waveforms, pictures (television, computer monitor), radar targets, or other phenomena. CRTs have also been used as memory devices, in which case the visible light emitted from the fluorescent material is not intended to have significant meaning to a visual observer.
In television sets and computer monitors, the entire front area of the tube is scanned repetitively and systematically in a fixed pattern called a raster. In color devices, an image is produced by controlling the intensity of each of the three electron beams, one for each additive primary color with a video signal as a reference.