Hi all. I have just had this fault presented to me on a friends 3 year old set. I've just carried out the modification shown here:
http://teleservice.xooit.fr/t46-MODIFICATION-DALLE-LCD-QD26-EQUIPER-CHEZ-PHILIPS-ET-THOMSON.htm
Got the set working & is watchable, but has about three vertical lines faulty near the right-hand side. A new LCD panel is required for a 100% repair.
Paul Jones (Medical Electronics Engineer - Ex TV/Video/Audio))
September 2009