Hi, the red color desappered from the monitor, I can not adjust it, is this problem with a displey or with computer

Possibilities:
1. video-card gone bad;
2. video-cable gone bad;
3. video-cable not tightly-connected to CRT;
4. video-cable not tightly-connected to video-card;
5. "red" gun inside CRT gone bad.

Disconnect the video-cable from the computer, and try again to adjust the "red". If red-free, then it's time to responsibly recycle the CRT.

Reconnect & wiggle the video-cable, to see if that induces any "red" onto the CRT.

Connect the CRT to the VGA-output port on a notebook computer, to see if that video-card generates "red" as one of the primary colours.

Give the CRT a strong "whack" on the side, to see if "red" makes an appearance.

Hi, right click on an empty area of th e desktop, select "Properties," next, pick all areas that will apply: Windows Color and Appearance, Display Settings... make the adjustments, "resolution etc. "Rating the solution is appreciated, thanks."

Try disconnecting the monitor from your computer and checking the pins in the connector to see if any of them are bent or flat. If they are, try to straighten them if possible and that may resolve your problem. Otherwise try resetting your monitor, if it has it as an option in it's configuration menu to do so.

Your monitor has a menu system that will allow you to access the color guns so you can adjust the red, blue, green guns that create the color picture.

The blue tint may indicate that you need to adjust teh reg and green to offset OR it may indicate that you have lost the red gun all together.

If this is an older monitor and you are considering repair... cost points say it is cheaper to buy a monitor ~$60 bucks

Try adjusting the monitor cable that goes from your monitor to the back of your computer.

Confirm the "no color red" by testing with another PC. If the same condition check if a color adjustment on the monitor is possible... like maybe a default setting. If the monitor still produces a bit of red it might be possible to edit the color adjustments using the advanced graphics adjustments; or a graphics program that your computers' manufacturer has available on your computer.

If nothing works the monitor may need repairs.

I hope there's nothing wrong the the RGB circuitry. Here's what i recommend. degauss, recall the monitor. There's also a temperature setting for the monitor. Change it to COOL or NORMAL.

check the R.G.B voltages at the crt base.if it is ok the crt may be defective.

hi
if you are see red pixels then your monitor haveing LCD Panel problume.
thanks
Ashok

In rare instances it is sometimes the 15 pin connector that connects on the computer end. Could be at the monitor end of the same cord, if it is a connector and not hard wired to the inside. Check both possible sides for bent pins.
I once went through an extension cable and had to remove it as it was bad connections and I'd have constant color changes drifting in and out. Sorry, but most likely it is just a cheap monitor on the fritz.