Peggs, I would be looking in the vertical circuit. Have had this symptom on other proj sets. It was often related to the vertical circuit in some way. Don't know if the red tube is in the vicinity of the vertical circuit in this set or not. Paul peggs <peggs@xxxxxxxxxxxxx> wrote: No Service manual,but I DO have the CTC195 'Training Manual'. Came in Dead. Coolant leak from red pix tube. No Real signs of fluid on PCB's,although I removed cleaned with soap and water,and baked the Convergence PCB,because it felt........ 'damp'. Replaced Bad Micro,246330/251579,was dragging Standby 5v down,which Burned resistor R14604,3.3ohm. Again no sign of Fluid leak on this PCB.........this one has NOT been cleaned. Flyback has been replaced.......just because :-) Now,this set goes into an immediate shut down at Power On.........unless all 3 yokes are disconnected(I have the HV Divider disconnected from the New Flyback). At Power On, H Drive will come up and immediately drop off,unless all 3 yokes are disconnected(from the Convergence PCB). HOT B+ is at 165v,and will acually raise a few volts,unless all 3 yokes are disconnected. But when the yokes ARE disconnected, H Drive stays up,HOT B+ drops to its proper 143v,and the set stays 'on'. Any Yoke being connected causes shutdown. I'm not too experienced at troubleshooting this chassis,so any Help/Tips/Manuals are welcomed. Peggs Peggs' Electronics 1519 West 2nd Street Owensboro,KY 42301 270-926-4968 fax 270-686-7399 peggs@xxxxxxxxxxxxx -- This message has been scanned by the OMU Online postini filter. ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/ Paul ,B Central TV&Video 911W Grand Ave Grover Beach Ca. (805)481-8084 ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/