Emac, tinted screen

I wonder if someone could help me with a question, run a network with several emac units - the older CRT style ones. Some of these has recently been repaired. They had the logic board replaced and apparantly one also required a replacement analogue board. They all went back in with no apparant problems and they had our standard image restored to them using netboot.
This week i have noticed the one that had the analogue board replaced as well as its logic board has a kind of cyan coloured tint to the screen. This is all the time, during boot, in openfirmware, in the OS (10.3.9) so im assuming its not software related though i may be wrong, i have looked at display settings which seem fine. Sadly nobody can be sure if the problem was there when the mac came back from repair. even me when i netbooted :-s
what i want to know is has anyone seen anything like this before? i want to make sure i try everything before i go accusing repair people of breaking it. Any help would be great. Many thanks

psigley,
Welcome to the Apple Discussions!
It's certainly possible that the replacement CRT/analog assembly is itself going out of alignment, or it may simply be that the replacement board wasn't calibrated properly for your geographic area (the difference between northern and souther hemisphere in the earth's magnetic field actually can affect CRT displays). Have you checked the tinted eMac's System Preferences -> Displays -> Color Sync settings? Try different built-in profiles, and if that doesn't resolve the problem, use the Advanced button to create a custom profile and see if you can tweak the tint back to normal.

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This is the partial breakdown:
1st Gen iPhone had a white point of 8300K;
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Emac, tinted screen

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