Color problems
1)The entire screen appears bluish or reddish.
2)Color purity is not uniform.
3)Misconvergence of colors. (red, green, blue)
•The CRT is not warmed up. Allow 30 minutes for the monitor to stabilize.
•Allow 30 minutes for the monitor to warm up.
•Degauss the screen. (Use the degaussing feature in the ScreenManager’s 'Others' menu. See page 22.)
•Allow 30 minutes for the monitor to warm up.
•Adjust the convergence using the Convergence feature in the ScreenManager’s Screen menu. See page 10.
•This problem can occur when using a BNC connection and the termination switch is set incorrectly. The termination switch should be set to 75 ohms for connection to a single monitor. See page 27.
Explanation of the Characteristics of CRTs
When the monitor is not fully warmed up, the screen may look slightly colored, e.g. reddish or bluish. This phenomenon is due to the unstableness of the electron gun during its
Others
1) The monitor beeps or hums.
•The monitor emits a humming noise when executing automatic degaussing at
•The monitor beeps at any time. This is not a problem. See page 24 for full details.
34 7 TROUBLESHOOTING