You may have a burned out convergence chip. But first, if you haven't already, you can try service mode to adjust convergence. Press the Magic Focusbutton, and then press it again to stop it, and then press the Statusbutton on your remote. Here's a link to the manual convergence procedure (scroll down). Warning-- When I did this the set got stuck in one of the adjustment screens. I had to remove the bottom front panel of the TV to reach the "little blue" reset button to get back a TV picture. But I think this is worth trying before replacing parts.
Answers & Comments
You may have a burned out convergence chip. But first, if you haven't already, you can try service mode to adjust convergence. Press the Magic Focusbutton, and then press it again to stop it, and then press the Statusbutton on your remote. Here's a link to the manual convergence procedure (scroll down). Warning-- When I did this the set got stuck in one of the adjustment screens. I had to remove the bottom front panel of the TV to reach the "little blue" reset button to get back a TV picture. But I think this is worth trying before replacing parts.