This set has a slow vert. roll. I have changed the sync I/C and the Vert. I/C. Checked lytics in that leg as well as the power supplies. Have heated and cooled. Have scoped signals to the sync I/C. Can see it in the base line of the vert out wave form from the sync I/C, if on the .5v scale. Can't find it. Hope someone else has the answer. I sure don't. Paul Paul ,B Central TV&Video 911W Grand Ave Grover Beach Ca. (805)481-8084 ----------------------------------------------------------------------------- This Email List is Public. Remove: http://www.tech-assist.org/remove.htm Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/