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Hi
Firstly - Is the cabling, mains and data cable, securely attached at both ends and the power turned on at the mains?
Secondly - If so when you press the monitor power button, does a light come on? (often orange coloured) If yes does this change colour when the computer starts its boot sequence? (often to green or blue)?
If no light can be obtained it is likely that the monitor is faulty.
If a light comes up on power up, but doesn't change colour during the computer boot sequence then it is more likely to be the graphics card that is faulty, or sometimes the computer PSU.
The easiest way to find out whether the computer or monitor is at fault is to replace the existing monitor with a monitor that is known to be in full working order, for example from another computer. (Or connecting your monitor to a computer that is known to be working)
Having isolated the faulty component it can be replaced and you should be up and running again.
Hope this is helpful, if so would you please register that with Fixya
Cheers
Try plugging in an external monitor and see how the display shows on it. If the display is ok on the external then your LCD Screen is going bad. If it shows the same colors on the external monitor then your video graphics card has issues.
Check the data-cable between the computer and the monitor, and try a different cable.
Or, try connecting the monitor to a different computer, to see if the video-card in your computer is not working correctly.
If necessary, replace the video-card.
Colours on your monitor are produced by "mixing" the 3 "primary" colours: red/green/blue in various proportions.
Or, if part of the monitor that produces one of those 3 primary colours has stopped working, then the resulting "mix" will have too much RED/PINK. Fix/replace the monitor.
hope u r a professional..as u r handling chip-level repairing of monitor, knowing itz hazardous n dangerous..
however, check thoroughly for dry soulderings..(esp. at the crt base)..[this chance is maximum].. see if the base is loose or faulty.. yes, it can b the 'chroma ic'..but don't ignore the associated components..(esp around the base).. check video amplifier n sub section.. the colour diodes, transistors n resistances at the base..
for better supervision contact ur system admin/vendor....
On your CRT back PCB thers three transistor on for red green and blue its possible that your blue transister is faulty. Try moving your cable see if the colour changes it can also be a faulty 15pin plug
Have a nice day
pin no 1 - Red colour signal (Red colour wire)
pin no 2 - Green colour signal (Green colour wire)
pin no 3 - Blue colour signal (Blue colour wire)
4&5 Not connected
pin no 6&7&8 are (Grounds)RGB Returns
9&10 NC
pin 13 Hohizontal sync signal
pin no 14 vertical sync signal
Not nessasry other pins
I doubt if this is related to the software you installed.
Check the video lead that runs from the PC to the monitor.
Sometimes the insulation becomes damaged or the wires break.
With the computer on gently wiggle the lead around at one end or the other while watching the monitor, if the colour flickers then you have found the location of the fault.
Also check the plugs are in firmly.
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