Hello techs. I am working with sony ptv kp-46s15. The red color has problem. The line of red is 3 times bigger than normal .I can not adjust it by focus . Testing I know focus voltage is ok and good continuity to crt. I believe our group techs must had experience of this problem. Leakage or short in the tube. But I do not know where..I have B&K 470 but I never used with PTV CRT.. One more problem is picture will shrinks both side after 3 minutes of operation. Dang TD electronics 18546 sherman way reseda , CA 91335 ------------------------------------------ To REMOVE your email address, click here: http://www.tech-assist.org/unsubb.html To CHANGE your email address, click here: http://www.techassist.net/forms/change.html ------------------------------------------ ***NEW*** Tips Added Instantly!!!*** Submit Repair Tips here: http://www.tech-assist.org/secure/tip/