Tandberg Data 7000 - Manual (Page 2)

2
TANDBERG Videoconferencing System
PLASMA MONITORS:
Panel sticking and after-image lag
Avoid displaying the same images continuously
over a long period of time on the TANDBERG 7000 monitors.
Displaying the same images such as still images for a long time may cause after-image lagging. This may occur
in the following two cases:
1. After image lagging due to remaining electrical load
When image patterns with very high peak luminance are displayed for more than 1 minute, after-image lagging
may occur due to the remaining electric load. The after-images remaining on the screen will disappear when
moving images are displayed. The time for the after-images to disappear depends on the luminance of the still
images and the time they had been displayed.
2. After-image lagging due to sticking
When images of the same pattern are displayed continuously for several hours or displayed for a short period of
time every day, after-images may remain on the screen due to the sticking of the fluorescent materials. In this
case, these images may decrease if moving images are displayed after them, but basically they will not
disappear.
Solving after-image lagging problems
If you have got after-image lagging on your monitors, you can reduce the problem to an acceptable level by
displaying a white image on the monitors for a few hours. This can be accomplished by focusing the camera
towards a white paper and setting maximum brightness. See the ‘User Manual’ for details.
NOTE: Warranty may be invalidated if the precautions listed above are not followed.