Hello All; I have a Zenith SY2551S that is in vertical collapse. The main module is 9-1584-01. The vertical drive signal is not being output from the y/c/jungle IC. I have repalced the IC, TA1242N, and still have the same problem. Has anyone seen this? If so, do you remember what the problem was? All help will be greatly appreciated. Charles Jacobs Universal Electronics 933 B Lakeside Dr Mobile, AL 36693 (251) 643-1698 (208) 485-5574 fax mail to:cj1965@xxxxxxxxxxxxx ------------------------------------------ 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.