When servicing Pioneer products such as Plasma and Projection units. Be sure the set is unplugged before removing the back cover. There is a trap switch that will open and if the unit is powered up. The set will go into copyright protection mode. Nothing will work again until a unlocking process is done. Each unit has a different process to follow to restore operation. Beware! -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 266.5.0 - Release Date: 2/25/2005