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Home Forums 68kMLA Calibrating 13" AppleColor High-Res Monitor — #2
Post #2 by techknight
Source Forum68kMLA
CategoryTroubleshooting
Post DateSun, 18 Oct 2015 - 13:58
Original URLhttps://68kmla.org/bb/threads/calibrating-13-applecolor-high-res-monitor.2838/
Post
pictures pictures pictures. 

Cant begin to diagnose the trouble without pictures!

A weak CRT, or a bad degaussing circuit can cause the issues you describe. Weak CRTs cause astigmatism issues, which throws the convergence off. 

mp.ls