My CRT monitor shows only green colour!

[kdhakal]

I have attari 15" CRT monitor. The colour is sometimes OK and sometimes I see only green colour. Sometimes the display flickers between normal colours and green colours as if the connection is loose and sometimes it is completely green. Changing the colours or updating the display drivers did not help. I also checked the cables but everything seems fine. I bought the monitor second hand and I'm not sure exactly how old it is. Is there any way to correct this? or do I have to change my monitor?
Thanks

 

[kdhakal]

This is almost certainly an internal connection/bad solder joint issue. It could also be a bad CRT. The next time it goes green, slap it on the side and top. The symptoms will probably change each time you do. A technician might be able to locate and repair the connection.

I've already tried that. Nothing happens on tapping the monitor or wagging the connection wire. The colour changes on its own.

 

[kdhakal]

P.S. When I disconnect the monitor from the CPU, and the monitor is still on, it shows "Check cable connection" message which is also entirely green. So I guess the problem is inside the monitor?

 

[junkeymonkey]

the only way you will know is to hook it to another crt monitor that you know is good and tried on another system and seen to be good .. that way you eliminate something so if it all looks fine on the test monitor and don't fail on it you then know its you monitor if its the same issues with both monitors then look else where like your card is failing or something