Make: Zenith Model: SL79355 Chassis: 9-1343 I been working on this TV set for a long time and can't figure it this out. When the picture is a dark screen the picture doesn't jump, but when you get a light screen it jumps a lot and you cant stand it. I replaced the picture tube, voltage regular, flyback and lot of other parts, and I cant find out what is causing this, can anyone help? Thanks! Donovan Shuppas Tri State TV Service Center's 824 Broadway Blvd. Steubenville,Ohio 43952 fishervcr7@xxxxxxx ------------------------------------------ Make your TechAssist database better! Submit Repair Tips here: http://www.tech-assist.org/secure/tip/ ------------------------------------------ To UNSUBSCRIBE your email address, click here: mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe Or send a BLANK email with unsubscribe in the SUBJECT field to the address above.