Make : Zenith Model : SJ2765W5 Chassis : 9-1132 Problem : When changing channels set may lose raster & HV. Base drive disappears. Very intermittent & Unpredictable. Audio stays on What I have found is that if the set is running fine , if I touch a scope probe to the Base of the Horiz Output or the Collector of the Horiz Output...the base drive shuts off. We have changed many caps in The C22xx circuitry per other common failures. Has anyone had this problem on these Zenith chassis before? Jeff Stielau Shoreline Electronics Repair 125 Beechtree Lane Westbrook,CT 06498 860-399-1861 Voice 860-664-3535 Fax jstielau@xxxxxxxx Help make your TechAssist online repair tips database better! Submit your fixes here: http://www.circuitwork.com/techassist/tip/#tips To unsubscribe write to: techassist-request@xxxxxxxxxxxxx with unsubscribe in the subject line.