CRT Monitor Problem - Shadow

Sorry, but a screen capture of a shadowy monitor doesn't have shadows... And how were you going to capture the problem when the problem is in the monitor itself?

To get an image which will show us your problem, you'll need to capture what is displayed, not the data sent to the display (which is what you've done with your screen capture).

You need to post a photograph of the screen - more-or-less any camera will do, even a webcam will probably suffice (if the shadows are big and bold enough).

Check for any magnetic interference. It may deflect the electron beam. Remove it and cycle the power.

You may also have an adjustment problem.

I once tried to add a short (1.5meter) and cheap video monitor extension cable between my PC and monitor. Every edge (text or graphics) had a nice new shadow artifact on the screen. Junked the cheap cable and all was fine.

Check your connections and cables first. If problem is still present, try the monitor on another PC or another monitor on the original PC. This will tell you WHERE the problem is. Fixing problem may not be so easy.

If you left the monitor on with the same image displayed for an extended length of time you could have monitor burn. This is especially true if the brightness of the display is at maximum. The electron beam constantly hitting the same spots on the phosphor screen will cause the phosphors to fade/change color. This was a common problem when standalone CRT based video games first came out.

First try degaussing then

Regards.

Surely Degaussing may be inactive due to fault in circuit.

Do the Poster feel a dip in light when TV is switched on?

Is he using a common Antenna system in the building or have its own?

If it is then try to see if any iron item is shifted near TV?

Try to change the location of TV & see the best place for minimum problem of shadows.

I hope it will help !

"I encountered a shadow problem in my CRT monitor for the past one week."

1. find out what changes were done in your system one week ago. are you the sole user of the PC? that should make it easy for you to recall what you did last week.

2. find out what physical changes were introduced in or around the machine one week ago. have you just started to place a communication device close by, etc.?

try to use another monitor, to isolate the defect.

HTH!

Yes, first try degaussing - but it may not clear a shadow.

The best "trick" I have seen to clear this is standard issue
with engineers - "a magic wand" (no joke!)

It's simply a powerful magnet - (and you can use any) just
"wave" it from side to side with strokes away and to the shadow
area. This should work. (if not, what have you lost?)

I have used this several times on different sets; works ok.

The old "professional" way was to boost the tube - but this can
put a limited life on the tube (thereafter) usually 6-12 months.

Hope this helps.

jt.

Some times I'm nice, and sometimes I'm nasty...
Coming soon.. www.Jtmart.com

DO NOT BRING A STRONG MAGNET ANYWHERE NEAR YOUR CRT MONITOR.

YOU COULD RUIN IT FOREVER.

That said, and experienced hand can use a magnet from a distance to solve some ov these problems. If you want to try a magnet from 2-3 feet to see what happens, you will be able to use the degausser to rectify any problems you might cause while trying to fix it. If you bring a strong magnet close you may cause color shifts that cannot be corrected by the onboard degausser and you will have to use a coil type moveable degausser.

The problem you have is often caused by incorrect video card resolution/frequency selection.

Go to the display seting and choose the basic seting and see if is fixed, and then progress to higher resolution and frequency settings, and step back when you go too far. In any event you will not be able to go above the makers max dot triad resolution built in to it. So go the makeer web site and see what they are.

It will certainly need degaussing after doing this as the "inbuilt" degausser may not be strong enough.

Furthermore, you may "bend" the shadow mask with a strong magnet, this will be completely unfixable......

I'm assuming this is a CRT monitor. If what you see is a long dark smear to the right of the letters, that would imply a dc restoration problem. look for electrolytic caps in the video circuits ( or boost or power supply for that matter). If you see little lines repeated to the right of the characters, it could be ringing in the video signal. That might be fixed by the cabling discussed earlier. If this monitor is a CRT type, You should consider an LCD replacement as they use about one fourth the power and don't burn in images.

I don't recommend taking the back off if you don't know your way around monitors. They can be fatal !

Regards

Focus adjustments are not that simple.

Needs a Pattern-Generator & a Dark Room to work in.

So we're talking a 17" CRT monitor that's a bunch of years old? Like the fly-back transformer is probably going. And we're talking the loss of what, $5.00?!

You can get a hi-res 17" LED flat-panel display (good/used) for like $25.00 or something? What's the problem!!! It's time has come! Move on!

Regards.

You are correct !

Why to spend money & time for an olddi.

Much cheaper & with better performance are the need of yhe day !!!

Have a read of the following and see if it has any helpful info; http://www.repairfaq.org/sam/crtfaq.htm

Is 'clear type' enabled?

look at this

Copy,paste and send the image of the prgram files and add/remove programs list

I saw this same problem on my Samsung 17 inch monitor. It's like a smear that extends to the right of everything displayed on the screen.

I solved the problem by giving the monitor to my partner and buying a new one. For some reason, the problem is not nearly as bad on his PC, which is in the next room.

Yes, this is simply a cabling problem. Buy a VGA cable that is not less than $25 and then see if it still happens.