It's been a while since I worked on one of these. It's one of those chassis' that the PS regulator(STR53041) Shorts and COOKS numerous parts. Sometimes it is caused by the picture tube,A68ACT00X. I don't remember if isolating the filament protects the circuitry from further 'Arcing' by the tube. I'm not even sure if the Tube is the Cause,the PS caps can fail and the Regulator gives up. The PS Primary Caps ARE bad,but I need to protect my tail on this one,so I needed to ask about the Filament Isolation,and also can the tube be 'checked' to see if it will Arc again ??? Peggs Peggs' Electronics 1519 West 2nd Street Owensboro,KY 42301 270-926-4968 fax 270-686-7399 peggs@xxxxxxxxxxxxx ----------------------------------------------------------------------------- Remove: http://www.tech-assist.org/remove.htm Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/