The set may have been dropped, and the mask in the tube was damaged.
The degaussing coil is not working properly.
The CRT was exposed to a strong magnet and requires a proper degaussing.
The deflection yoke, and purity magnets may be out of alignment. This also
means a full convergence alignment.
Because I can see some rings or curved lines (looks like Newton Rings),
from experience when I have seen these, it was usually the mask in the CRT
that was damaged.
--
Greetings,
Jerry Greenberg GLG Technologies GLG
=========================================
WebPage
http://www.zoom-one.com
Electronics
http://www.zoom-one.com/electron.htm
=========================================
Would someone have a look at this TV screen. The fix could be easy but
beyond me right now.
http://www.islandnet.com/~roger/TVmonitor.html
Roger