Measuring line limited flow resistance R427 (0.47 ω/1W) has burn broken, with 100W/220V of incandescent false load, measuring line voltage for 130V, normal, will replaced R427, boot observation found line output transformer T444 focused collection at and line output tube radiator Zhijian sparking, then and three no, measuring line output tube Q450 (2SD1887) was breakdown, description only replaced line output transformer has; due to hand no original accessories, Check have available outside type close of second-hand Toshiba TV of line output transformer substitution, function corresponds to feet for: line tube set electrode (1), and line powered (2), and depending on put 220V (3), and to? (4), and filament (9), and field 30V (6), and channel 16V (7), and AFC pulse (10), and brightness control ABL (8), (front of digital is Samsung introduction feet, brackets within for Toshiba introduction feet). Successful substitution, repair.