This set works real nice but as soon as you select Ext.video,it shuts dn.Push power on and the tv will power up ok again.I also noticed that when channel is change,it will shut dn too.Looks like a regulator problem to me.I can't find my manual for this set.I checked all caps in the G bd and all are ok.I was going to replace the power converter IC651 which is a STRS-6301.I have the 6301A but I have notes here that say not to use the A type. Does anyone have any tips on this problem for this model? Thanks. Mando Birdie's TV & Electronics Casa Grande, AZ ***************************************************************************** Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/