When a fault occurs, the machine issued a burnt smell. Turn on the TV back cover listening, "blah" sound from the bottom of the power switch transformer, according to estimates maintenance experience a short circuit fault line scan circuit. By visual inspection and found the line flyback capacitor C539 (2700PF/2kV) burnt detection line pipe Q501 (2SDl556) breakdown, insurance resistance R729 (10Ω/2W) circuit. The C539 and Q501 replaced with the specifications of insurance due to no resistance, they use the same resistance, with the power to replace the ordinary resistors R729, test machine back to normal. But after the test drive more than one hour, the failure again, after testing found the line flyback capacitor C501 (2700pF/2kV) burnt, R729 resistance decreases as 5.6Ω, transistor Q706 (2SDl266A) breakdown. After replacing the C501 and Q706, to learn the last lesson, the trial RFllHL type 2Ω/2W insurance resistance replace R729, again test machine image and sound are normal, continuous watch over ten hours, everything is normal. For this to remind colleagues note in the replacement insurance resistance, resistance can not be replaced with ordinary, so to expand the scope of failure.cCWservice manual download site