We have a RCA CTC203CH3 which goes into shutdown after one second..The base waveform of the output transistor looks ok and the high voltage comes up to 23 kv for a second..Output transistor and scanning diode checks ok..B plus is 134 volts on flyback..Any help with this unit would be greatly appreciated. Alvin Rose Radio & Tv Centre Marystown, Nl ----------------------------------------------------------------------------- This Email List is accessible to the general public through search engines. 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/