Thanks all. I didn't get a chance to get back to my TV today but I will definitely follow the leads given here. Much appreciated. I'll report back when I get further into this.
P.S. It's a model 21DK1 with 98D1 chassis. Some pics and other details are in my intro thread from shortly after I got the TV:
http://www.videokarma.org/showthread.php?t=262622